0,0 → 1,6339 |
/* |
* VC-1 and WMV3 decoder |
* Copyright (c) 2011 Mashiat Sarker Shakkhar |
* Copyright (c) 2006-2007 Konstantin Shishkov |
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
/** |
* @file |
* VC-1 and WMV3 decoder |
*/ |
|
#include "internal.h" |
#include "avcodec.h" |
#include "error_resilience.h" |
#include "mpegvideo.h" |
#include "h263.h" |
#include "h264chroma.h" |
#include "vc1.h" |
#include "vc1data.h" |
#include "vc1acdata.h" |
#include "msmpeg4data.h" |
#include "unary.h" |
#include "mathops.h" |
#include "vdpau_internal.h" |
#include "libavutil/avassert.h" |
|
#undef NDEBUG |
#include <assert.h> |
|
#define MB_INTRA_VLC_BITS 9 |
#define DC_VLC_BITS 9 |
|
|
// offset tables for interlaced picture MVDATA decoding |
static const int offset_table1[9] = { 0, 1, 2, 4, 8, 16, 32, 64, 128 }; |
static const int offset_table2[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 }; |
|
/***********************************************************************/ |
/** |
* @name VC-1 Bitplane decoding |
* @see 8.7, p56 |
* @{ |
*/ |
|
/** |
* Imode types |
* @{ |
*/ |
enum Imode { |
IMODE_RAW, |
IMODE_NORM2, |
IMODE_DIFF2, |
IMODE_NORM6, |
IMODE_DIFF6, |
IMODE_ROWSKIP, |
IMODE_COLSKIP |
}; |
/** @} */ //imode defines |
|
static void init_block_index(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
ff_init_block_index(s); |
if (v->field_mode && !(v->second_field ^ v->tff)) { |
s->dest[0] += s->current_picture_ptr->f.linesize[0]; |
s->dest[1] += s->current_picture_ptr->f.linesize[1]; |
s->dest[2] += s->current_picture_ptr->f.linesize[2]; |
} |
} |
|
/** @} */ //Bitplane group |
|
static void vc1_put_signed_blocks_clamped(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
int topleft_mb_pos, top_mb_pos; |
int stride_y, fieldtx = 0; |
int v_dist; |
|
/* The put pixels loop is always one MB row behind the decoding loop, |
* because we can only put pixels when overlap filtering is done, and |
* for filtering of the bottom edge of a MB, we need the next MB row |
* present as well. |
* Within the row, the put pixels loop is also one MB col behind the |
* decoding loop. The reason for this is again, because for filtering |
* of the right MB edge, we need the next MB present. */ |
if (!s->first_slice_line) { |
if (s->mb_x) { |
topleft_mb_pos = (s->mb_y - 1) * s->mb_stride + s->mb_x - 1; |
if (v->fcm == ILACE_FRAME) |
fieldtx = v->fieldtx_plane[topleft_mb_pos]; |
stride_y = s->linesize << fieldtx; |
v_dist = (16 - fieldtx) >> (fieldtx == 0); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][0], |
s->dest[0] - 16 * s->linesize - 16, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][1], |
s->dest[0] - 16 * s->linesize - 8, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][2], |
s->dest[0] - v_dist * s->linesize - 16, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][3], |
s->dest[0] - v_dist * s->linesize - 8, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][4], |
s->dest[1] - 8 * s->uvlinesize - 8, |
s->uvlinesize); |
s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][5], |
s->dest[2] - 8 * s->uvlinesize - 8, |
s->uvlinesize); |
} |
if (s->mb_x == s->mb_width - 1) { |
top_mb_pos = (s->mb_y - 1) * s->mb_stride + s->mb_x; |
if (v->fcm == ILACE_FRAME) |
fieldtx = v->fieldtx_plane[top_mb_pos]; |
stride_y = s->linesize << fieldtx; |
v_dist = fieldtx ? 15 : 8; |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][0], |
s->dest[0] - 16 * s->linesize, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][1], |
s->dest[0] - 16 * s->linesize + 8, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][2], |
s->dest[0] - v_dist * s->linesize, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][3], |
s->dest[0] - v_dist * s->linesize + 8, |
stride_y); |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][4], |
s->dest[1] - 8 * s->uvlinesize, |
s->uvlinesize); |
s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][5], |
s->dest[2] - 8 * s->uvlinesize, |
s->uvlinesize); |
} |
} |
|
#define inc_blk_idx(idx) do { \ |
idx++; \ |
if (idx >= v->n_allocated_blks) \ |
idx = 0; \ |
} while (0) |
|
inc_blk_idx(v->topleft_blk_idx); |
inc_blk_idx(v->top_blk_idx); |
inc_blk_idx(v->left_blk_idx); |
inc_blk_idx(v->cur_blk_idx); |
} |
|
static void vc1_loop_filter_iblk(VC1Context *v, int pq) |
{ |
MpegEncContext *s = &v->s; |
int j; |
if (!s->first_slice_line) { |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0], s->linesize, pq); |
if (s->mb_x) |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize + 8, s->linesize, pq); |
for (j = 0; j < 2; j++) { |
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1], s->uvlinesize, pq); |
if (s->mb_x) |
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
} |
} |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] + 8 * s->linesize, s->linesize, pq); |
|
if (s->mb_y == s->end_mb_y - 1) { |
if (s->mb_x) { |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0], s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter8(s->dest[1], s->uvlinesize, pq); |
v->vc1dsp.vc1_h_loop_filter8(s->dest[2], s->uvlinesize, pq); |
} |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] + 8, s->linesize, pq); |
} |
} |
|
static void vc1_loop_filter_iblk_delayed(VC1Context *v, int pq) |
{ |
MpegEncContext *s = &v->s; |
int j; |
|
/* The loopfilter runs 1 row and 1 column behind the overlap filter, which |
* means it runs two rows/cols behind the decoding loop. */ |
if (!s->first_slice_line) { |
if (s->mb_x) { |
if (s->mb_y >= s->start_mb_y + 2) { |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq); |
|
if (s->mb_x >= 2) |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 16, s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 8, s->linesize, pq); |
for (j = 0; j < 2; j++) { |
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq); |
if (s->mb_x >= 2) { |
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 16 * s->uvlinesize - 8, s->uvlinesize, pq); |
} |
} |
} |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize - 16, s->linesize, pq); |
} |
|
if (s->mb_x == s->mb_width - 1) { |
if (s->mb_y >= s->start_mb_y + 2) { |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
|
if (s->mb_x) |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize, s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize + 8, s->linesize, pq); |
for (j = 0; j < 2; j++) { |
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
if (s->mb_x >= 2) { |
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 16 * s->uvlinesize, s->uvlinesize, pq); |
} |
} |
} |
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize, s->linesize, pq); |
} |
|
if (s->mb_y == s->end_mb_y) { |
if (s->mb_x) { |
if (s->mb_x >= 2) |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 8, s->linesize, pq); |
if (s->mb_x >= 2) { |
for (j = 0; j < 2; j++) { |
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq); |
} |
} |
} |
|
if (s->mb_x == s->mb_width - 1) { |
if (s->mb_x) |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize + 8, s->linesize, pq); |
if (s->mb_x) { |
for (j = 0; j < 2; j++) { |
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
} |
} |
} |
} |
} |
} |
|
static void vc1_smooth_overlap_filter_iblk(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
int mb_pos; |
|
if (v->condover == CONDOVER_NONE) |
return; |
|
mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
|
/* Within a MB, the horizontal overlap always runs before the vertical. |
* To accomplish that, we run the H on left and internal borders of the |
* currently decoded MB. Then, we wait for the next overlap iteration |
* to do H overlap on the right edge of this MB, before moving over and |
* running the V overlap. Therefore, the V overlap makes us trail by one |
* MB col and the H overlap filter makes us trail by one MB row. This |
* is reflected in the time at which we run the put_pixels loop. */ |
if (v->condover == CONDOVER_ALL || v->pq >= 9 || v->over_flags_plane[mb_pos]) { |
if (s->mb_x && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
v->over_flags_plane[mb_pos - 1])) { |
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][1], |
v->block[v->cur_blk_idx][0]); |
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][3], |
v->block[v->cur_blk_idx][2]); |
if (!(s->flags & CODEC_FLAG_GRAY)) { |
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][4], |
v->block[v->cur_blk_idx][4]); |
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][5], |
v->block[v->cur_blk_idx][5]); |
} |
} |
v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][0], |
v->block[v->cur_blk_idx][1]); |
v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][2], |
v->block[v->cur_blk_idx][3]); |
|
if (s->mb_x == s->mb_width - 1) { |
if (!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
v->over_flags_plane[mb_pos - s->mb_stride])) { |
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][2], |
v->block[v->cur_blk_idx][0]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][3], |
v->block[v->cur_blk_idx][1]); |
if (!(s->flags & CODEC_FLAG_GRAY)) { |
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][4], |
v->block[v->cur_blk_idx][4]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][5], |
v->block[v->cur_blk_idx][5]); |
} |
} |
v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][0], |
v->block[v->cur_blk_idx][2]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][1], |
v->block[v->cur_blk_idx][3]); |
} |
} |
if (s->mb_x && (v->condover == CONDOVER_ALL || v->over_flags_plane[mb_pos - 1])) { |
if (!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
v->over_flags_plane[mb_pos - s->mb_stride - 1])) { |
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][2], |
v->block[v->left_blk_idx][0]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][3], |
v->block[v->left_blk_idx][1]); |
if (!(s->flags & CODEC_FLAG_GRAY)) { |
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][4], |
v->block[v->left_blk_idx][4]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][5], |
v->block[v->left_blk_idx][5]); |
} |
} |
v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][0], |
v->block[v->left_blk_idx][2]); |
v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][1], |
v->block[v->left_blk_idx][3]); |
} |
} |
|
/** Do motion compensation over 1 macroblock |
* Mostly adapted hpel_motion and qpel_motion from mpegvideo.c |
*/ |
static void vc1_mc_1mv(VC1Context *v, int dir) |
{ |
MpegEncContext *s = &v->s; |
H264ChromaContext *h264chroma = &v->h264chroma; |
uint8_t *srcY, *srcU, *srcV; |
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
int i; |
uint8_t (*luty)[256], (*lutuv)[256]; |
int use_ic; |
|
if ((!v->field_mode || |
(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
!v->s.last_picture.f.data[0]) |
return; |
|
mx = s->mv[dir][0][0]; |
my = s->mv[dir][0][1]; |
|
// store motion vectors for further use in B frames |
if (s->pict_type == AV_PICTURE_TYPE_P) { |
for (i = 0; i < 4; i++) { |
s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][0] = mx; |
s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][1] = my; |
} |
} |
|
uvmx = (mx + ((mx & 3) == 3)) >> 1; |
uvmy = (my + ((my & 3) == 3)) >> 1; |
v->luma_mv[s->mb_x][0] = uvmx; |
v->luma_mv[s->mb_x][1] = uvmy; |
|
if (v->field_mode && |
v->cur_field_type != v->ref_field_type[dir]) { |
my = my - 2 + 4 * v->cur_field_type; |
uvmy = uvmy - 2 + 4 * v->cur_field_type; |
} |
|
// fastuvmc shall be ignored for interlaced frame picture |
if (v->fastuvmc && (v->fcm != ILACE_FRAME)) { |
uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1)); |
uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1)); |
} |
if (!dir) { |
if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
srcY = s->current_picture.f.data[0]; |
srcU = s->current_picture.f.data[1]; |
srcV = s->current_picture.f.data[2]; |
luty = v->curr_luty; |
lutuv = v->curr_lutuv; |
use_ic = v->curr_use_ic; |
} else { |
srcY = s->last_picture.f.data[0]; |
srcU = s->last_picture.f.data[1]; |
srcV = s->last_picture.f.data[2]; |
luty = v->last_luty; |
lutuv = v->last_lutuv; |
use_ic = v->last_use_ic; |
} |
} else { |
srcY = s->next_picture.f.data[0]; |
srcU = s->next_picture.f.data[1]; |
srcV = s->next_picture.f.data[2]; |
luty = v->next_luty; |
lutuv = v->next_lutuv; |
use_ic = v->next_use_ic; |
} |
|
if (!srcY || !srcU) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
return; |
} |
|
src_x = s->mb_x * 16 + (mx >> 2); |
src_y = s->mb_y * 16 + (my >> 2); |
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
|
if (v->profile != PROFILE_ADVANCED) { |
src_x = av_clip( src_x, -16, s->mb_width * 16); |
src_y = av_clip( src_y, -16, s->mb_height * 16); |
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
} else { |
src_x = av_clip( src_x, -17, s->avctx->coded_width); |
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); |
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
} |
|
srcY += src_y * s->linesize + src_x; |
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
|
if (v->field_mode && v->ref_field_type[dir]) { |
srcY += s->current_picture_ptr->f.linesize[0]; |
srcU += s->current_picture_ptr->f.linesize[1]; |
srcV += s->current_picture_ptr->f.linesize[2]; |
} |
|
/* for grayscale we should not try to read from unknown area */ |
if (s->flags & CODEC_FLAG_GRAY) { |
srcU = s->edge_emu_buffer + 18 * s->linesize; |
srcV = s->edge_emu_buffer + 18 * s->linesize; |
} |
|
if (v->rangeredfrm || use_ic |
|| s->h_edge_pos < 22 || v_edge_pos < 22 |
|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel * 3 |
|| (unsigned)(src_y - 1) > v_edge_pos - (my&3) - 16 - 3) { |
uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize; |
|
srcY -= s->mspel * (1 + s->linesize); |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->linesize, |
srcY, s->linesize, |
17 + s->mspel * 2, 17 + s->mspel * 2, |
src_x - s->mspel, src_y - s->mspel, |
s->h_edge_pos, v_edge_pos); |
srcY = s->edge_emu_buffer; |
s->vdsp.emulated_edge_mc(uvbuf, s->uvlinesize, srcU, s->uvlinesize, |
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
s->vdsp.emulated_edge_mc(uvbuf + 16, s->uvlinesize, srcV, s->uvlinesize, |
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
srcU = uvbuf; |
srcV = uvbuf + 16; |
/* if we deal with range reduction we need to scale source blocks */ |
if (v->rangeredfrm) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcY; |
for (j = 0; j < 17 + s->mspel * 2; j++) { |
for (i = 0; i < 17 + s->mspel * 2; i++) |
src[i] = ((src[i] - 128) >> 1) + 128; |
src += s->linesize; |
} |
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
for (i = 0; i < 9; i++) { |
src[i] = ((src[i] - 128) >> 1) + 128; |
src2[i] = ((src2[i] - 128) >> 1) + 128; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
/* if we deal with intensity compensation we need to scale source blocks */ |
if (use_ic) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcY; |
for (j = 0; j < 17 + s->mspel * 2; j++) { |
int f = v->field_mode ? v->ref_field_type[dir] : ((j + src_y - s->mspel) & 1) ; |
for (i = 0; i < 17 + s->mspel * 2; i++) |
src[i] = luty[f][src[i]]; |
src += s->linesize; |
} |
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
int f = v->field_mode ? v->ref_field_type[dir] : ((j + uvsrc_y) & 1); |
for (i = 0; i < 9; i++) { |
src[i] = lutuv[f][src[i]]; |
src2[i] = lutuv[f][src2[i]]; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
srcY += s->mspel * (1 + s->linesize); |
} |
|
if (s->mspel) { |
dxy = ((my & 3) << 2) | (mx & 3); |
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd); |
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd); |
srcY += s->linesize * 8; |
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd); |
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd); |
} else { // hpel mc - always used for luma |
dxy = (my & 2) | ((mx & 2) >> 1); |
if (!v->rnd) |
s->hdsp.put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
else |
s->hdsp.put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
} |
|
if (s->flags & CODEC_FLAG_GRAY) return; |
/* Chroma MC always uses qpel bilinear */ |
uvmx = (uvmx & 3) << 1; |
uvmy = (uvmy & 3) << 1; |
if (!v->rnd) { |
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
} else { |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
} |
} |
|
static inline int median4(int a, int b, int c, int d) |
{ |
if (a < b) { |
if (c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2; |
else return (FFMIN(b, c) + FFMAX(a, d)) / 2; |
} else { |
if (c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2; |
else return (FFMIN(a, c) + FFMAX(b, d)) / 2; |
} |
} |
|
/** Do motion compensation for 4-MV macroblock - luminance block |
*/ |
static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg) |
{ |
MpegEncContext *s = &v->s; |
uint8_t *srcY; |
int dxy, mx, my, src_x, src_y; |
int off; |
int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0; |
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
uint8_t (*luty)[256]; |
int use_ic; |
|
if ((!v->field_mode || |
(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
!v->s.last_picture.f.data[0]) |
return; |
|
mx = s->mv[dir][n][0]; |
my = s->mv[dir][n][1]; |
|
if (!dir) { |
if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
srcY = s->current_picture.f.data[0]; |
luty = v->curr_luty; |
use_ic = v->curr_use_ic; |
} else { |
srcY = s->last_picture.f.data[0]; |
luty = v->last_luty; |
use_ic = v->last_use_ic; |
} |
} else { |
srcY = s->next_picture.f.data[0]; |
luty = v->next_luty; |
use_ic = v->next_use_ic; |
} |
|
if (!srcY) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
return; |
} |
|
if (v->field_mode) { |
if (v->cur_field_type != v->ref_field_type[dir]) |
my = my - 2 + 4 * v->cur_field_type; |
} |
|
if (s->pict_type == AV_PICTURE_TYPE_P && n == 3 && v->field_mode) { |
int same_count = 0, opp_count = 0, k; |
int chosen_mv[2][4][2], f; |
int tx, ty; |
for (k = 0; k < 4; k++) { |
f = v->mv_f[0][s->block_index[k] + v->blocks_off]; |
chosen_mv[f][f ? opp_count : same_count][0] = s->mv[0][k][0]; |
chosen_mv[f][f ? opp_count : same_count][1] = s->mv[0][k][1]; |
opp_count += f; |
same_count += 1 - f; |
} |
f = opp_count > same_count; |
switch (f ? opp_count : same_count) { |
case 4: |
tx = median4(chosen_mv[f][0][0], chosen_mv[f][1][0], |
chosen_mv[f][2][0], chosen_mv[f][3][0]); |
ty = median4(chosen_mv[f][0][1], chosen_mv[f][1][1], |
chosen_mv[f][2][1], chosen_mv[f][3][1]); |
break; |
case 3: |
tx = mid_pred(chosen_mv[f][0][0], chosen_mv[f][1][0], chosen_mv[f][2][0]); |
ty = mid_pred(chosen_mv[f][0][1], chosen_mv[f][1][1], chosen_mv[f][2][1]); |
break; |
case 2: |
tx = (chosen_mv[f][0][0] + chosen_mv[f][1][0]) / 2; |
ty = (chosen_mv[f][0][1] + chosen_mv[f][1][1]) / 2; |
break; |
default: |
av_assert0(0); |
} |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty; |
for (k = 0; k < 4; k++) |
v->mv_f[1][s->block_index[k] + v->blocks_off] = f; |
} |
|
if (v->fcm == ILACE_FRAME) { // not sure if needed for other types of picture |
int qx, qy; |
int width = s->avctx->coded_width; |
int height = s->avctx->coded_height >> 1; |
if (s->pict_type == AV_PICTURE_TYPE_P) { |
s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][0] = mx; |
s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][1] = my; |
} |
qx = (s->mb_x * 16) + (mx >> 2); |
qy = (s->mb_y * 8) + (my >> 3); |
|
if (qx < -17) |
mx -= 4 * (qx + 17); |
else if (qx > width) |
mx -= 4 * (qx - width); |
if (qy < -18) |
my -= 8 * (qy + 18); |
else if (qy > height + 1) |
my -= 8 * (qy - height - 1); |
} |
|
if ((v->fcm == ILACE_FRAME) && fieldmv) |
off = ((n > 1) ? s->linesize : 0) + (n & 1) * 8; |
else |
off = s->linesize * 4 * (n & 2) + (n & 1) * 8; |
|
src_x = s->mb_x * 16 + (n & 1) * 8 + (mx >> 2); |
if (!fieldmv) |
src_y = s->mb_y * 16 + (n & 2) * 4 + (my >> 2); |
else |
src_y = s->mb_y * 16 + ((n > 1) ? 1 : 0) + (my >> 2); |
|
if (v->profile != PROFILE_ADVANCED) { |
src_x = av_clip(src_x, -16, s->mb_width * 16); |
src_y = av_clip(src_y, -16, s->mb_height * 16); |
} else { |
src_x = av_clip(src_x, -17, s->avctx->coded_width); |
if (v->fcm == ILACE_FRAME) { |
if (src_y & 1) |
src_y = av_clip(src_y, -17, s->avctx->coded_height + 1); |
else |
src_y = av_clip(src_y, -18, s->avctx->coded_height); |
} else { |
src_y = av_clip(src_y, -18, s->avctx->coded_height + 1); |
} |
} |
|
srcY += src_y * s->linesize + src_x; |
if (v->field_mode && v->ref_field_type[dir]) |
srcY += s->current_picture_ptr->f.linesize[0]; |
|
if (fieldmv && !(src_y & 1)) |
v_edge_pos--; |
if (fieldmv && (src_y & 1) && src_y < 4) |
src_y--; |
if (v->rangeredfrm || use_ic |
|| s->h_edge_pos < 13 || v_edge_pos < 23 |
|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx & 3) - 8 - s->mspel * 2 |
|| (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) { |
srcY -= s->mspel * (1 + (s->linesize << fieldmv)); |
/* check emulate edge stride and offset */ |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->linesize, srcY, s->linesize, |
9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv, |
src_x - s->mspel, src_y - (s->mspel << fieldmv), |
s->h_edge_pos, v_edge_pos); |
srcY = s->edge_emu_buffer; |
/* if we deal with range reduction we need to scale source blocks */ |
if (v->rangeredfrm) { |
int i, j; |
uint8_t *src; |
|
src = srcY; |
for (j = 0; j < 9 + s->mspel * 2; j++) { |
for (i = 0; i < 9 + s->mspel * 2; i++) |
src[i] = ((src[i] - 128) >> 1) + 128; |
src += s->linesize << fieldmv; |
} |
} |
/* if we deal with intensity compensation we need to scale source blocks */ |
if (use_ic) { |
int i, j; |
uint8_t *src; |
|
src = srcY; |
for (j = 0; j < 9 + s->mspel * 2; j++) { |
int f = v->field_mode ? v->ref_field_type[dir] : (((j<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1); |
for (i = 0; i < 9 + s->mspel * 2; i++) |
src[i] = luty[f][src[i]]; |
src += s->linesize << fieldmv; |
} |
} |
srcY += s->mspel * (1 + (s->linesize << fieldmv)); |
} |
|
if (s->mspel) { |
dxy = ((my & 3) << 2) | (mx & 3); |
if (avg) |
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd); |
else |
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd); |
} else { // hpel mc - always used for luma |
dxy = (my & 2) | ((mx & 2) >> 1); |
if (!v->rnd) |
s->hdsp.put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8); |
else |
s->hdsp.put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8); |
} |
} |
|
static av_always_inline int get_chroma_mv(int *mvx, int *mvy, int *a, int flag, int *tx, int *ty) |
{ |
int idx, i; |
static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}; |
|
idx = ((a[3] != flag) << 3) |
| ((a[2] != flag) << 2) |
| ((a[1] != flag) << 1) |
| (a[0] != flag); |
if (!idx) { |
*tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]); |
*ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]); |
return 4; |
} else if (count[idx] == 1) { |
switch (idx) { |
case 0x1: |
*tx = mid_pred(mvx[1], mvx[2], mvx[3]); |
*ty = mid_pred(mvy[1], mvy[2], mvy[3]); |
return 3; |
case 0x2: |
*tx = mid_pred(mvx[0], mvx[2], mvx[3]); |
*ty = mid_pred(mvy[0], mvy[2], mvy[3]); |
return 3; |
case 0x4: |
*tx = mid_pred(mvx[0], mvx[1], mvx[3]); |
*ty = mid_pred(mvy[0], mvy[1], mvy[3]); |
return 3; |
case 0x8: |
*tx = mid_pred(mvx[0], mvx[1], mvx[2]); |
*ty = mid_pred(mvy[0], mvy[1], mvy[2]); |
return 3; |
} |
} else if (count[idx] == 2) { |
int t1 = 0, t2 = 0; |
for (i = 0; i < 3; i++) |
if (!a[i]) { |
t1 = i; |
break; |
} |
for (i = t1 + 1; i < 4; i++) |
if (!a[i]) { |
t2 = i; |
break; |
} |
*tx = (mvx[t1] + mvx[t2]) / 2; |
*ty = (mvy[t1] + mvy[t2]) / 2; |
return 2; |
} else { |
return 0; |
} |
return -1; |
} |
|
/** Do motion compensation for 4-MV macroblock - both chroma blocks |
*/ |
static void vc1_mc_4mv_chroma(VC1Context *v, int dir) |
{ |
MpegEncContext *s = &v->s; |
H264ChromaContext *h264chroma = &v->h264chroma; |
uint8_t *srcU, *srcV; |
int uvmx, uvmy, uvsrc_x, uvsrc_y; |
int k, tx = 0, ty = 0; |
int mvx[4], mvy[4], intra[4], mv_f[4]; |
int valid_count; |
int chroma_ref_type = v->cur_field_type; |
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
uint8_t (*lutuv)[256]; |
int use_ic; |
|
if (!v->field_mode && !v->s.last_picture.f.data[0]) |
return; |
if (s->flags & CODEC_FLAG_GRAY) |
return; |
|
for (k = 0; k < 4; k++) { |
mvx[k] = s->mv[dir][k][0]; |
mvy[k] = s->mv[dir][k][1]; |
intra[k] = v->mb_type[0][s->block_index[k]]; |
if (v->field_mode) |
mv_f[k] = v->mv_f[dir][s->block_index[k] + v->blocks_off]; |
} |
|
/* calculate chroma MV vector from four luma MVs */ |
if (!v->field_mode || (v->field_mode && !v->numref)) { |
valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty); |
chroma_ref_type = v->reffield; |
if (!valid_count) { |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0; |
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
return; //no need to do MC for intra blocks |
} |
} else { |
int dominant = 0; |
if (mv_f[0] + mv_f[1] + mv_f[2] + mv_f[3] > 2) |
dominant = 1; |
valid_count = get_chroma_mv(mvx, mvy, mv_f, dominant, &tx, &ty); |
if (dominant) |
chroma_ref_type = !v->cur_field_type; |
} |
if (v->field_mode && chroma_ref_type == 1 && v->cur_field_type == 1 && !v->s.last_picture.f.data[0]) |
return; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty; |
uvmx = (tx + ((tx & 3) == 3)) >> 1; |
uvmy = (ty + ((ty & 3) == 3)) >> 1; |
|
v->luma_mv[s->mb_x][0] = uvmx; |
v->luma_mv[s->mb_x][1] = uvmy; |
|
if (v->fastuvmc) { |
uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1)); |
uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1)); |
} |
// Field conversion bias |
if (v->cur_field_type != chroma_ref_type) |
uvmy += 2 - 4 * chroma_ref_type; |
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
|
if (v->profile != PROFILE_ADVANCED) { |
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
} else { |
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
} |
|
if (!dir) { |
if (v->field_mode && (v->cur_field_type != chroma_ref_type) && v->second_field) { |
srcU = s->current_picture.f.data[1]; |
srcV = s->current_picture.f.data[2]; |
lutuv = v->curr_lutuv; |
use_ic = v->curr_use_ic; |
} else { |
srcU = s->last_picture.f.data[1]; |
srcV = s->last_picture.f.data[2]; |
lutuv = v->last_lutuv; |
use_ic = v->last_use_ic; |
} |
} else { |
srcU = s->next_picture.f.data[1]; |
srcV = s->next_picture.f.data[2]; |
lutuv = v->next_lutuv; |
use_ic = v->next_use_ic; |
} |
|
if (!srcU) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
return; |
} |
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
|
if (v->field_mode) { |
if (chroma_ref_type) { |
srcU += s->current_picture_ptr->f.linesize[1]; |
srcV += s->current_picture_ptr->f.linesize[2]; |
} |
} |
|
if (v->rangeredfrm || use_ic |
|| s->h_edge_pos < 18 || v_edge_pos < 18 |
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9 |
|| (unsigned)uvsrc_y > (v_edge_pos >> 1) - 9) { |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->uvlinesize, srcU, |
s->uvlinesize, 8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, s->uvlinesize, srcV, |
s->uvlinesize, 8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
srcU = s->edge_emu_buffer; |
srcV = s->edge_emu_buffer + 16; |
|
/* if we deal with range reduction we need to scale source blocks */ |
if (v->rangeredfrm) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
for (i = 0; i < 9; i++) { |
src[i] = ((src[i] - 128) >> 1) + 128; |
src2[i] = ((src2[i] - 128) >> 1) + 128; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
/* if we deal with intensity compensation we need to scale source blocks */ |
if (use_ic) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
int f = v->field_mode ? chroma_ref_type : ((j + uvsrc_y) & 1); |
for (i = 0; i < 9; i++) { |
src[i] = lutuv[f][src[i]]; |
src2[i] = lutuv[f][src2[i]]; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
} |
|
/* Chroma MC always uses qpel bilinear */ |
uvmx = (uvmx & 3) << 1; |
uvmy = (uvmy & 3) << 1; |
if (!v->rnd) { |
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
} else { |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
} |
} |
|
/** Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V) |
*/ |
static void vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg) |
{ |
MpegEncContext *s = &v->s; |
H264ChromaContext *h264chroma = &v->h264chroma; |
uint8_t *srcU, *srcV; |
int uvsrc_x, uvsrc_y; |
int uvmx_field[4], uvmy_field[4]; |
int i, off, tx, ty; |
int fieldmv = v->blk_mv_type[s->block_index[0]]; |
static const int s_rndtblfield[16] = { 0, 0, 1, 2, 4, 4, 5, 6, 2, 2, 3, 8, 6, 6, 7, 12 }; |
int v_dist = fieldmv ? 1 : 4; // vertical offset for lower sub-blocks |
int v_edge_pos = s->v_edge_pos >> 1; |
int use_ic; |
uint8_t (*lutuv)[256]; |
|
if (s->flags & CODEC_FLAG_GRAY) |
return; |
|
for (i = 0; i < 4; i++) { |
int d = i < 2 ? dir: dir2; |
tx = s->mv[d][i][0]; |
uvmx_field[i] = (tx + ((tx & 3) == 3)) >> 1; |
ty = s->mv[d][i][1]; |
if (fieldmv) |
uvmy_field[i] = (ty >> 4) * 8 + s_rndtblfield[ty & 0xF]; |
else |
uvmy_field[i] = (ty + ((ty & 3) == 3)) >> 1; |
} |
|
for (i = 0; i < 4; i++) { |
off = (i & 1) * 4 + ((i & 2) ? v_dist * s->uvlinesize : 0); |
uvsrc_x = s->mb_x * 8 + (i & 1) * 4 + (uvmx_field[i] >> 2); |
uvsrc_y = s->mb_y * 8 + ((i & 2) ? v_dist : 0) + (uvmy_field[i] >> 2); |
// FIXME: implement proper pull-back (see vc1cropmv.c, vc1CROPMV_ChromaPullBack()) |
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
if (i < 2 ? dir : dir2) { |
srcU = s->next_picture.f.data[1]; |
srcV = s->next_picture.f.data[2]; |
lutuv = v->next_lutuv; |
use_ic = v->next_use_ic; |
} else { |
srcU = s->last_picture.f.data[1]; |
srcV = s->last_picture.f.data[2]; |
lutuv = v->last_lutuv; |
use_ic = v->last_use_ic; |
} |
if (!srcU) |
return; |
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
uvmx_field[i] = (uvmx_field[i] & 3) << 1; |
uvmy_field[i] = (uvmy_field[i] & 3) << 1; |
|
if (fieldmv && !(uvsrc_y & 1)) |
v_edge_pos = (s->v_edge_pos >> 1) - 1; |
|
if (fieldmv && (uvsrc_y & 1) && uvsrc_y < 2) |
uvsrc_y--; |
if (use_ic |
|| s->h_edge_pos < 10 || v_edge_pos < (5 << fieldmv) |
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 5 |
|| (unsigned)uvsrc_y > v_edge_pos - (5 << fieldmv)) { |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->uvlinesize, srcU, |
s->uvlinesize, 5, (5 << fieldmv), uvsrc_x, |
uvsrc_y, s->h_edge_pos >> 1, v_edge_pos); |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, s->uvlinesize, srcV, |
s->uvlinesize, 5, (5 << fieldmv), uvsrc_x, |
uvsrc_y, s->h_edge_pos >> 1, v_edge_pos); |
srcU = s->edge_emu_buffer; |
srcV = s->edge_emu_buffer + 16; |
|
/* if we deal with intensity compensation we need to scale source blocks */ |
if (use_ic) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcU; |
src2 = srcV; |
for (j = 0; j < 5; j++) { |
int f = (uvsrc_y + (j << fieldmv)) & 1; |
for (i = 0; i < 5; i++) { |
src[i] = lutuv[f][src[i]]; |
src2[i] = lutuv[f][src2[i]]; |
} |
src += s->uvlinesize << fieldmv; |
src2 += s->uvlinesize << fieldmv; |
} |
} |
} |
if (avg) { |
if (!v->rnd) { |
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
} else { |
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
} |
} else { |
if (!v->rnd) { |
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
} else { |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
} |
} |
} |
} |
|
/***********************************************************************/ |
/** |
* @name VC-1 Block-level functions |
* @see 7.1.4, p91 and 8.1.1.7, p(1)04 |
* @{ |
*/ |
|
/** |
* @def GET_MQUANT |
* @brief Get macroblock-level quantizer scale |
*/ |
#define GET_MQUANT() \ |
if (v->dquantfrm) { \ |
int edges = 0; \ |
if (v->dqprofile == DQPROFILE_ALL_MBS) { \ |
if (v->dqbilevel) { \ |
mquant = (get_bits1(gb)) ? v->altpq : v->pq; \ |
} else { \ |
mqdiff = get_bits(gb, 3); \ |
if (mqdiff != 7) \ |
mquant = v->pq + mqdiff; \ |
else \ |
mquant = get_bits(gb, 5); \ |
} \ |
} \ |
if (v->dqprofile == DQPROFILE_SINGLE_EDGE) \ |
edges = 1 << v->dqsbedge; \ |
else if (v->dqprofile == DQPROFILE_DOUBLE_EDGES) \ |
edges = (3 << v->dqsbedge) % 15; \ |
else if (v->dqprofile == DQPROFILE_FOUR_EDGES) \ |
edges = 15; \ |
if ((edges&1) && !s->mb_x) \ |
mquant = v->altpq; \ |
if ((edges&2) && s->first_slice_line) \ |
mquant = v->altpq; \ |
if ((edges&4) && s->mb_x == (s->mb_width - 1)) \ |
mquant = v->altpq; \ |
if ((edges&8) && s->mb_y == (s->mb_height - 1)) \ |
mquant = v->altpq; \ |
if (!mquant || mquant > 31) { \ |
av_log(v->s.avctx, AV_LOG_ERROR, \ |
"Overriding invalid mquant %d\n", mquant); \ |
mquant = 1; \ |
} \ |
} |
|
/** |
* @def GET_MVDATA(_dmv_x, _dmv_y) |
* @brief Get MV differentials |
* @see MVDATA decoding from 8.3.5.2, p(1)20 |
* @param _dmv_x Horizontal differential for decoded MV |
* @param _dmv_y Vertical differential for decoded MV |
*/ |
#define GET_MVDATA(_dmv_x, _dmv_y) \ |
index = 1 + get_vlc2(gb, ff_vc1_mv_diff_vlc[s->mv_table_index].table, \ |
VC1_MV_DIFF_VLC_BITS, 2); \ |
if (index > 36) { \ |
mb_has_coeffs = 1; \ |
index -= 37; \ |
} else \ |
mb_has_coeffs = 0; \ |
s->mb_intra = 0; \ |
if (!index) { \ |
_dmv_x = _dmv_y = 0; \ |
} else if (index == 35) { \ |
_dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \ |
_dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \ |
} else if (index == 36) { \ |
_dmv_x = 0; \ |
_dmv_y = 0; \ |
s->mb_intra = 1; \ |
} else { \ |
index1 = index % 6; \ |
if (!s->quarter_sample && index1 == 5) val = 1; \ |
else val = 0; \ |
if (size_table[index1] - val > 0) \ |
val = get_bits(gb, size_table[index1] - val); \ |
else val = 0; \ |
sign = 0 - (val&1); \ |
_dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \ |
\ |
index1 = index / 6; \ |
if (!s->quarter_sample && index1 == 5) val = 1; \ |
else val = 0; \ |
if (size_table[index1] - val > 0) \ |
val = get_bits(gb, size_table[index1] - val); \ |
else val = 0; \ |
sign = 0 - (val & 1); \ |
_dmv_y = (sign ^ ((val >> 1) + offset_table[index1])) - sign; \ |
} |
|
static av_always_inline void get_mvdata_interlaced(VC1Context *v, int *dmv_x, |
int *dmv_y, int *pred_flag) |
{ |
int index, index1; |
int extend_x = 0, extend_y = 0; |
GetBitContext *gb = &v->s.gb; |
int bits, esc; |
int val, sign; |
const int* offs_tab; |
|
if (v->numref) { |
bits = VC1_2REF_MVDATA_VLC_BITS; |
esc = 125; |
} else { |
bits = VC1_1REF_MVDATA_VLC_BITS; |
esc = 71; |
} |
switch (v->dmvrange) { |
case 1: |
extend_x = 1; |
break; |
case 2: |
extend_y = 1; |
break; |
case 3: |
extend_x = extend_y = 1; |
break; |
} |
index = get_vlc2(gb, v->imv_vlc->table, bits, 3); |
if (index == esc) { |
*dmv_x = get_bits(gb, v->k_x); |
*dmv_y = get_bits(gb, v->k_y); |
if (v->numref) { |
if (pred_flag) { |
*pred_flag = *dmv_y & 1; |
*dmv_y = (*dmv_y + *pred_flag) >> 1; |
} else { |
*dmv_y = (*dmv_y + (*dmv_y & 1)) >> 1; |
} |
} |
} |
else { |
av_assert0(index < esc); |
if (extend_x) |
offs_tab = offset_table2; |
else |
offs_tab = offset_table1; |
index1 = (index + 1) % 9; |
if (index1 != 0) { |
val = get_bits(gb, index1 + extend_x); |
sign = 0 -(val & 1); |
*dmv_x = (sign ^ ((val >> 1) + offs_tab[index1])) - sign; |
} else |
*dmv_x = 0; |
if (extend_y) |
offs_tab = offset_table2; |
else |
offs_tab = offset_table1; |
index1 = (index + 1) / 9; |
if (index1 > v->numref) { |
val = get_bits(gb, (index1 + (extend_y << v->numref)) >> v->numref); |
sign = 0 - (val & 1); |
*dmv_y = (sign ^ ((val >> 1) + offs_tab[index1 >> v->numref])) - sign; |
} else |
*dmv_y = 0; |
if (v->numref && pred_flag) |
*pred_flag = index1 & 1; |
} |
} |
|
static av_always_inline int scaleforsame_x(VC1Context *v, int n /* MV */, int dir) |
{ |
int scaledvalue, refdist; |
int scalesame1, scalesame2; |
int scalezone1_x, zone1offset_x; |
int table_index = dir ^ v->second_field; |
|
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
refdist = v->refdist; |
else |
refdist = dir ? v->brfd : v->frfd; |
if (refdist > 3) |
refdist = 3; |
scalesame1 = ff_vc1_field_mvpred_scales[table_index][1][refdist]; |
scalesame2 = ff_vc1_field_mvpred_scales[table_index][2][refdist]; |
scalezone1_x = ff_vc1_field_mvpred_scales[table_index][3][refdist]; |
zone1offset_x = ff_vc1_field_mvpred_scales[table_index][5][refdist]; |
|
if (FFABS(n) > 255) |
scaledvalue = n; |
else { |
if (FFABS(n) < scalezone1_x) |
scaledvalue = (n * scalesame1) >> 8; |
else { |
if (n < 0) |
scaledvalue = ((n * scalesame2) >> 8) - zone1offset_x; |
else |
scaledvalue = ((n * scalesame2) >> 8) + zone1offset_x; |
} |
} |
return av_clip(scaledvalue, -v->range_x, v->range_x - 1); |
} |
|
static av_always_inline int scaleforsame_y(VC1Context *v, int i, int n /* MV */, int dir) |
{ |
int scaledvalue, refdist; |
int scalesame1, scalesame2; |
int scalezone1_y, zone1offset_y; |
int table_index = dir ^ v->second_field; |
|
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
refdist = v->refdist; |
else |
refdist = dir ? v->brfd : v->frfd; |
if (refdist > 3) |
refdist = 3; |
scalesame1 = ff_vc1_field_mvpred_scales[table_index][1][refdist]; |
scalesame2 = ff_vc1_field_mvpred_scales[table_index][2][refdist]; |
scalezone1_y = ff_vc1_field_mvpred_scales[table_index][4][refdist]; |
zone1offset_y = ff_vc1_field_mvpred_scales[table_index][6][refdist]; |
|
if (FFABS(n) > 63) |
scaledvalue = n; |
else { |
if (FFABS(n) < scalezone1_y) |
scaledvalue = (n * scalesame1) >> 8; |
else { |
if (n < 0) |
scaledvalue = ((n * scalesame2) >> 8) - zone1offset_y; |
else |
scaledvalue = ((n * scalesame2) >> 8) + zone1offset_y; |
} |
} |
|
if (v->cur_field_type && !v->ref_field_type[dir]) |
return av_clip(scaledvalue, -v->range_y / 2 + 1, v->range_y / 2); |
else |
return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 - 1); |
} |
|
static av_always_inline int scaleforopp_x(VC1Context *v, int n /* MV */) |
{ |
int scalezone1_x, zone1offset_x; |
int scaleopp1, scaleopp2, brfd; |
int scaledvalue; |
|
brfd = FFMIN(v->brfd, 3); |
scalezone1_x = ff_vc1_b_field_mvpred_scales[3][brfd]; |
zone1offset_x = ff_vc1_b_field_mvpred_scales[5][brfd]; |
scaleopp1 = ff_vc1_b_field_mvpred_scales[1][brfd]; |
scaleopp2 = ff_vc1_b_field_mvpred_scales[2][brfd]; |
|
if (FFABS(n) > 255) |
scaledvalue = n; |
else { |
if (FFABS(n) < scalezone1_x) |
scaledvalue = (n * scaleopp1) >> 8; |
else { |
if (n < 0) |
scaledvalue = ((n * scaleopp2) >> 8) - zone1offset_x; |
else |
scaledvalue = ((n * scaleopp2) >> 8) + zone1offset_x; |
} |
} |
return av_clip(scaledvalue, -v->range_x, v->range_x - 1); |
} |
|
static av_always_inline int scaleforopp_y(VC1Context *v, int n /* MV */, int dir) |
{ |
int scalezone1_y, zone1offset_y; |
int scaleopp1, scaleopp2, brfd; |
int scaledvalue; |
|
brfd = FFMIN(v->brfd, 3); |
scalezone1_y = ff_vc1_b_field_mvpred_scales[4][brfd]; |
zone1offset_y = ff_vc1_b_field_mvpred_scales[6][brfd]; |
scaleopp1 = ff_vc1_b_field_mvpred_scales[1][brfd]; |
scaleopp2 = ff_vc1_b_field_mvpred_scales[2][brfd]; |
|
if (FFABS(n) > 63) |
scaledvalue = n; |
else { |
if (FFABS(n) < scalezone1_y) |
scaledvalue = (n * scaleopp1) >> 8; |
else { |
if (n < 0) |
scaledvalue = ((n * scaleopp2) >> 8) - zone1offset_y; |
else |
scaledvalue = ((n * scaleopp2) >> 8) + zone1offset_y; |
} |
} |
if (v->cur_field_type && !v->ref_field_type[dir]) { |
return av_clip(scaledvalue, -v->range_y / 2 + 1, v->range_y / 2); |
} else { |
return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 - 1); |
} |
} |
|
static av_always_inline int scaleforsame(VC1Context *v, int i, int n /* MV */, |
int dim, int dir) |
{ |
int brfd, scalesame; |
int hpel = 1 - v->s.quarter_sample; |
|
n >>= hpel; |
if (v->s.pict_type != AV_PICTURE_TYPE_B || v->second_field || !dir) { |
if (dim) |
n = scaleforsame_y(v, i, n, dir) << hpel; |
else |
n = scaleforsame_x(v, n, dir) << hpel; |
return n; |
} |
brfd = FFMIN(v->brfd, 3); |
scalesame = ff_vc1_b_field_mvpred_scales[0][brfd]; |
|
n = (n * scalesame >> 8) << hpel; |
return n; |
} |
|
static av_always_inline int scaleforopp(VC1Context *v, int n /* MV */, |
int dim, int dir) |
{ |
int refdist, scaleopp; |
int hpel = 1 - v->s.quarter_sample; |
|
n >>= hpel; |
if (v->s.pict_type == AV_PICTURE_TYPE_B && !v->second_field && dir == 1) { |
if (dim) |
n = scaleforopp_y(v, n, dir) << hpel; |
else |
n = scaleforopp_x(v, n) << hpel; |
return n; |
} |
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
refdist = FFMIN(v->refdist, 3); |
else |
refdist = dir ? v->brfd : v->frfd; |
scaleopp = ff_vc1_field_mvpred_scales[dir ^ v->second_field][0][refdist]; |
|
n = (n * scaleopp >> 8) << hpel; |
return n; |
} |
|
/** Predict and set motion vector |
*/ |
static inline void vc1_pred_mv(VC1Context *v, int n, int dmv_x, int dmv_y, |
int mv1, int r_x, int r_y, uint8_t* is_intra, |
int pred_flag, int dir) |
{ |
MpegEncContext *s = &v->s; |
int xy, wrap, off = 0; |
int16_t *A, *B, *C; |
int px, py; |
int sum; |
int mixedmv_pic, num_samefield = 0, num_oppfield = 0; |
int opposite, a_f, b_f, c_f; |
int16_t field_predA[2]; |
int16_t field_predB[2]; |
int16_t field_predC[2]; |
int a_valid, b_valid, c_valid; |
int hybridmv_thresh, y_bias = 0; |
|
if (v->mv_mode == MV_PMODE_MIXED_MV || |
((v->mv_mode == MV_PMODE_INTENSITY_COMP) && (v->mv_mode2 == MV_PMODE_MIXED_MV))) |
mixedmv_pic = 1; |
else |
mixedmv_pic = 0; |
/* scale MV difference to be quad-pel */ |
dmv_x <<= 1 - s->quarter_sample; |
dmv_y <<= 1 - s->quarter_sample; |
|
wrap = s->b8_stride; |
xy = s->block_index[n]; |
|
if (s->mb_intra) { |
s->mv[0][n][0] = s->current_picture.motion_val[0][xy + v->blocks_off][0] = 0; |
s->mv[0][n][1] = s->current_picture.motion_val[0][xy + v->blocks_off][1] = 0; |
s->current_picture.motion_val[1][xy + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][xy + v->blocks_off][1] = 0; |
if (mv1) { /* duplicate motion data for 1-MV block */ |
s->current_picture.motion_val[0][xy + 1 + v->blocks_off][0] = 0; |
s->current_picture.motion_val[0][xy + 1 + v->blocks_off][1] = 0; |
s->current_picture.motion_val[0][xy + wrap + v->blocks_off][0] = 0; |
s->current_picture.motion_val[0][xy + wrap + v->blocks_off][1] = 0; |
s->current_picture.motion_val[0][xy + wrap + 1 + v->blocks_off][0] = 0; |
s->current_picture.motion_val[0][xy + wrap + 1 + v->blocks_off][1] = 0; |
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
s->current_picture.motion_val[1][xy + 1 + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][xy + 1 + v->blocks_off][1] = 0; |
s->current_picture.motion_val[1][xy + wrap][0] = 0; |
s->current_picture.motion_val[1][xy + wrap + v->blocks_off][1] = 0; |
s->current_picture.motion_val[1][xy + wrap + 1 + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][xy + wrap + 1 + v->blocks_off][1] = 0; |
} |
return; |
} |
|
C = s->current_picture.motion_val[dir][xy - 1 + v->blocks_off]; |
A = s->current_picture.motion_val[dir][xy - wrap + v->blocks_off]; |
if (mv1) { |
if (v->field_mode && mixedmv_pic) |
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
else |
off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2; |
} else { |
//in 4-MV mode different blocks have different B predictor position |
switch (n) { |
case 0: |
off = (s->mb_x > 0) ? -1 : 1; |
break; |
case 1: |
off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1; |
break; |
case 2: |
off = 1; |
break; |
case 3: |
off = -1; |
} |
} |
B = s->current_picture.motion_val[dir][xy - wrap + off + v->blocks_off]; |
|
a_valid = !s->first_slice_line || (n == 2 || n == 3); |
b_valid = a_valid && (s->mb_width > 1); |
c_valid = s->mb_x || (n == 1 || n == 3); |
if (v->field_mode) { |
a_valid = a_valid && !is_intra[xy - wrap]; |
b_valid = b_valid && !is_intra[xy - wrap + off]; |
c_valid = c_valid && !is_intra[xy - 1]; |
} |
|
if (a_valid) { |
a_f = v->mv_f[dir][xy - wrap + v->blocks_off]; |
num_oppfield += a_f; |
num_samefield += 1 - a_f; |
field_predA[0] = A[0]; |
field_predA[1] = A[1]; |
} else { |
field_predA[0] = field_predA[1] = 0; |
a_f = 0; |
} |
if (b_valid) { |
b_f = v->mv_f[dir][xy - wrap + off + v->blocks_off]; |
num_oppfield += b_f; |
num_samefield += 1 - b_f; |
field_predB[0] = B[0]; |
field_predB[1] = B[1]; |
} else { |
field_predB[0] = field_predB[1] = 0; |
b_f = 0; |
} |
if (c_valid) { |
c_f = v->mv_f[dir][xy - 1 + v->blocks_off]; |
num_oppfield += c_f; |
num_samefield += 1 - c_f; |
field_predC[0] = C[0]; |
field_predC[1] = C[1]; |
} else { |
field_predC[0] = field_predC[1] = 0; |
c_f = 0; |
} |
|
if (v->field_mode) { |
if (!v->numref) |
// REFFIELD determines if the last field or the second-last field is |
// to be used as reference |
opposite = 1 - v->reffield; |
else { |
if (num_samefield <= num_oppfield) |
opposite = 1 - pred_flag; |
else |
opposite = pred_flag; |
} |
} else |
opposite = 0; |
if (opposite) { |
if (a_valid && !a_f) { |
field_predA[0] = scaleforopp(v, field_predA[0], 0, dir); |
field_predA[1] = scaleforopp(v, field_predA[1], 1, dir); |
} |
if (b_valid && !b_f) { |
field_predB[0] = scaleforopp(v, field_predB[0], 0, dir); |
field_predB[1] = scaleforopp(v, field_predB[1], 1, dir); |
} |
if (c_valid && !c_f) { |
field_predC[0] = scaleforopp(v, field_predC[0], 0, dir); |
field_predC[1] = scaleforopp(v, field_predC[1], 1, dir); |
} |
v->mv_f[dir][xy + v->blocks_off] = 1; |
v->ref_field_type[dir] = !v->cur_field_type; |
} else { |
if (a_valid && a_f) { |
field_predA[0] = scaleforsame(v, n, field_predA[0], 0, dir); |
field_predA[1] = scaleforsame(v, n, field_predA[1], 1, dir); |
} |
if (b_valid && b_f) { |
field_predB[0] = scaleforsame(v, n, field_predB[0], 0, dir); |
field_predB[1] = scaleforsame(v, n, field_predB[1], 1, dir); |
} |
if (c_valid && c_f) { |
field_predC[0] = scaleforsame(v, n, field_predC[0], 0, dir); |
field_predC[1] = scaleforsame(v, n, field_predC[1], 1, dir); |
} |
v->mv_f[dir][xy + v->blocks_off] = 0; |
v->ref_field_type[dir] = v->cur_field_type; |
} |
|
if (a_valid) { |
px = field_predA[0]; |
py = field_predA[1]; |
} else if (c_valid) { |
px = field_predC[0]; |
py = field_predC[1]; |
} else if (b_valid) { |
px = field_predB[0]; |
py = field_predB[1]; |
} else { |
px = 0; |
py = 0; |
} |
|
if (num_samefield + num_oppfield > 1) { |
px = mid_pred(field_predA[0], field_predB[0], field_predC[0]); |
py = mid_pred(field_predA[1], field_predB[1], field_predC[1]); |
} |
|
/* Pullback MV as specified in 8.3.5.3.4 */ |
if (!v->field_mode) { |
int qx, qy, X, Y; |
qx = (s->mb_x << 6) + ((n == 1 || n == 3) ? 32 : 0); |
qy = (s->mb_y << 6) + ((n == 2 || n == 3) ? 32 : 0); |
X = (s->mb_width << 6) - 4; |
Y = (s->mb_height << 6) - 4; |
if (mv1) { |
if (qx + px < -60) px = -60 - qx; |
if (qy + py < -60) py = -60 - qy; |
} else { |
if (qx + px < -28) px = -28 - qx; |
if (qy + py < -28) py = -28 - qy; |
} |
if (qx + px > X) px = X - qx; |
if (qy + py > Y) py = Y - qy; |
} |
|
if (!v->field_mode || s->pict_type != AV_PICTURE_TYPE_B) { |
/* Calculate hybrid prediction as specified in 8.3.5.3.5 (also 10.3.5.4.3.5) */ |
hybridmv_thresh = 32; |
if (a_valid && c_valid) { |
if (is_intra[xy - wrap]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - field_predA[0]) + FFABS(py - field_predA[1]); |
if (sum > hybridmv_thresh) { |
if (get_bits1(&s->gb)) { // read HYBRIDPRED bit |
px = field_predA[0]; |
py = field_predA[1]; |
} else { |
px = field_predC[0]; |
py = field_predC[1]; |
} |
} else { |
if (is_intra[xy - 1]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - field_predC[0]) + FFABS(py - field_predC[1]); |
if (sum > hybridmv_thresh) { |
if (get_bits1(&s->gb)) { |
px = field_predA[0]; |
py = field_predA[1]; |
} else { |
px = field_predC[0]; |
py = field_predC[1]; |
} |
} |
} |
} |
} |
|
if (v->field_mode && v->numref) |
r_y >>= 1; |
if (v->field_mode && v->cur_field_type && v->ref_field_type[dir] == 0) |
y_bias = 1; |
/* store MV using signed modulus of MV range defined in 4.11 */ |
s->mv[dir][n][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x; |
s->mv[dir][n][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1] = ((py + dmv_y + r_y - y_bias) & ((r_y << 1) - 1)) - r_y + y_bias; |
if (mv1) { /* duplicate motion data for 1-MV block */ |
s->current_picture.motion_val[dir][xy + 1 + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
s->current_picture.motion_val[dir][xy + 1 + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
s->current_picture.motion_val[dir][xy + wrap + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
s->current_picture.motion_val[dir][xy + wrap + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
s->current_picture.motion_val[dir][xy + wrap + 1 + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
s->current_picture.motion_val[dir][xy + wrap + 1 + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
v->mv_f[dir][xy + 1 + v->blocks_off] = v->mv_f[dir][xy + v->blocks_off]; |
v->mv_f[dir][xy + wrap + v->blocks_off] = v->mv_f[dir][xy + wrap + 1 + v->blocks_off] = v->mv_f[dir][xy + v->blocks_off]; |
} |
} |
|
/** Predict and set motion vector for interlaced frame picture MBs |
*/ |
static inline void vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y, |
int mvn, int r_x, int r_y, uint8_t* is_intra, int dir) |
{ |
MpegEncContext *s = &v->s; |
int xy, wrap, off = 0; |
int A[2], B[2], C[2]; |
int px = 0, py = 0; |
int a_valid = 0, b_valid = 0, c_valid = 0; |
int field_a, field_b, field_c; // 0: same, 1: opposit |
int total_valid, num_samefield, num_oppfield; |
int pos_c, pos_b, n_adj; |
|
wrap = s->b8_stride; |
xy = s->block_index[n]; |
|
if (s->mb_intra) { |
s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0; |
s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0; |
s->current_picture.motion_val[1][xy][0] = 0; |
s->current_picture.motion_val[1][xy][1] = 0; |
if (mvn == 1) { /* duplicate motion data for 1-MV block */ |
s->current_picture.motion_val[0][xy + 1][0] = 0; |
s->current_picture.motion_val[0][xy + 1][1] = 0; |
s->current_picture.motion_val[0][xy + wrap][0] = 0; |
s->current_picture.motion_val[0][xy + wrap][1] = 0; |
s->current_picture.motion_val[0][xy + wrap + 1][0] = 0; |
s->current_picture.motion_val[0][xy + wrap + 1][1] = 0; |
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
s->current_picture.motion_val[1][xy + 1][0] = 0; |
s->current_picture.motion_val[1][xy + 1][1] = 0; |
s->current_picture.motion_val[1][xy + wrap][0] = 0; |
s->current_picture.motion_val[1][xy + wrap][1] = 0; |
s->current_picture.motion_val[1][xy + wrap + 1][0] = 0; |
s->current_picture.motion_val[1][xy + wrap + 1][1] = 0; |
} |
return; |
} |
|
off = ((n == 0) || (n == 1)) ? 1 : -1; |
/* predict A */ |
if (s->mb_x || (n == 1) || (n == 3)) { |
if ((v->blk_mv_type[xy]) // current block (MB) has a field MV |
|| (!v->blk_mv_type[xy] && !v->blk_mv_type[xy - 1])) { // or both have frame MV |
A[0] = s->current_picture.motion_val[dir][xy - 1][0]; |
A[1] = s->current_picture.motion_val[dir][xy - 1][1]; |
a_valid = 1; |
} else { // current block has frame mv and cand. has field MV (so average) |
A[0] = (s->current_picture.motion_val[dir][xy - 1][0] |
+ s->current_picture.motion_val[dir][xy - 1 + off * wrap][0] + 1) >> 1; |
A[1] = (s->current_picture.motion_val[dir][xy - 1][1] |
+ s->current_picture.motion_val[dir][xy - 1 + off * wrap][1] + 1) >> 1; |
a_valid = 1; |
} |
if (!(n & 1) && v->is_intra[s->mb_x - 1]) { |
a_valid = 0; |
A[0] = A[1] = 0; |
} |
} else |
A[0] = A[1] = 0; |
/* Predict B and C */ |
B[0] = B[1] = C[0] = C[1] = 0; |
if (n == 0 || n == 1 || v->blk_mv_type[xy]) { |
if (!s->first_slice_line) { |
if (!v->is_intra[s->mb_x - s->mb_stride]) { |
b_valid = 1; |
n_adj = n | 2; |
pos_b = s->block_index[n_adj] - 2 * wrap; |
if (v->blk_mv_type[pos_b] && v->blk_mv_type[xy]) { |
n_adj = (n & 2) | (n & 1); |
} |
B[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap][0]; |
B[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap][1]; |
if (v->blk_mv_type[pos_b] && !v->blk_mv_type[xy]) { |
B[0] = (B[0] + s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap][0] + 1) >> 1; |
B[1] = (B[1] + s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap][1] + 1) >> 1; |
} |
} |
if (s->mb_width > 1) { |
if (!v->is_intra[s->mb_x - s->mb_stride + 1]) { |
c_valid = 1; |
n_adj = 2; |
pos_c = s->block_index[2] - 2 * wrap + 2; |
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) { |
n_adj = n & 2; |
} |
C[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap + 2][0]; |
C[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap + 2][1]; |
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) { |
C[0] = (1 + C[0] + (s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap + 2][0])) >> 1; |
C[1] = (1 + C[1] + (s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap + 2][1])) >> 1; |
} |
if (s->mb_x == s->mb_width - 1) { |
if (!v->is_intra[s->mb_x - s->mb_stride - 1]) { |
c_valid = 1; |
n_adj = 3; |
pos_c = s->block_index[3] - 2 * wrap - 2; |
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) { |
n_adj = n | 1; |
} |
C[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap - 2][0]; |
C[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap - 2][1]; |
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) { |
C[0] = (1 + C[0] + s->current_picture.motion_val[dir][s->block_index[1] - 2 * wrap - 2][0]) >> 1; |
C[1] = (1 + C[1] + s->current_picture.motion_val[dir][s->block_index[1] - 2 * wrap - 2][1]) >> 1; |
} |
} else |
c_valid = 0; |
} |
} |
} |
} |
} else { |
pos_b = s->block_index[1]; |
b_valid = 1; |
B[0] = s->current_picture.motion_val[dir][pos_b][0]; |
B[1] = s->current_picture.motion_val[dir][pos_b][1]; |
pos_c = s->block_index[0]; |
c_valid = 1; |
C[0] = s->current_picture.motion_val[dir][pos_c][0]; |
C[1] = s->current_picture.motion_val[dir][pos_c][1]; |
} |
|
total_valid = a_valid + b_valid + c_valid; |
// check if predictor A is out of bounds |
if (!s->mb_x && !(n == 1 || n == 3)) { |
A[0] = A[1] = 0; |
} |
// check if predictor B is out of bounds |
if ((s->first_slice_line && v->blk_mv_type[xy]) || (s->first_slice_line && !(n & 2))) { |
B[0] = B[1] = C[0] = C[1] = 0; |
} |
if (!v->blk_mv_type[xy]) { |
if (s->mb_width == 1) { |
px = B[0]; |
py = B[1]; |
} else { |
if (total_valid >= 2) { |
px = mid_pred(A[0], B[0], C[0]); |
py = mid_pred(A[1], B[1], C[1]); |
} else if (total_valid) { |
if (a_valid) { px = A[0]; py = A[1]; } |
else if (b_valid) { px = B[0]; py = B[1]; } |
else { px = C[0]; py = C[1]; } |
} |
} |
} else { |
if (a_valid) |
field_a = (A[1] & 4) ? 1 : 0; |
else |
field_a = 0; |
if (b_valid) |
field_b = (B[1] & 4) ? 1 : 0; |
else |
field_b = 0; |
if (c_valid) |
field_c = (C[1] & 4) ? 1 : 0; |
else |
field_c = 0; |
|
num_oppfield = field_a + field_b + field_c; |
num_samefield = total_valid - num_oppfield; |
if (total_valid == 3) { |
if ((num_samefield == 3) || (num_oppfield == 3)) { |
px = mid_pred(A[0], B[0], C[0]); |
py = mid_pred(A[1], B[1], C[1]); |
} else if (num_samefield >= num_oppfield) { |
/* take one MV from same field set depending on priority |
the check for B may not be necessary */ |
px = !field_a ? A[0] : B[0]; |
py = !field_a ? A[1] : B[1]; |
} else { |
px = field_a ? A[0] : B[0]; |
py = field_a ? A[1] : B[1]; |
} |
} else if (total_valid == 2) { |
if (num_samefield >= num_oppfield) { |
if (!field_a && a_valid) { |
px = A[0]; |
py = A[1]; |
} else if (!field_b && b_valid) { |
px = B[0]; |
py = B[1]; |
} else /*if (c_valid)*/ { |
av_assert1(c_valid); |
px = C[0]; |
py = C[1]; |
} /*else px = py = 0;*/ |
} else { |
if (field_a && a_valid) { |
px = A[0]; |
py = A[1]; |
} else /*if (field_b && b_valid)*/ { |
av_assert1(field_b && b_valid); |
px = B[0]; |
py = B[1]; |
} /*else if (c_valid) { |
px = C[0]; |
py = C[1]; |
}*/ |
} |
} else if (total_valid == 1) { |
px = (a_valid) ? A[0] : ((b_valid) ? B[0] : C[0]); |
py = (a_valid) ? A[1] : ((b_valid) ? B[1] : C[1]); |
} |
} |
|
/* store MV using signed modulus of MV range defined in 4.11 */ |
s->mv[dir][n][0] = s->current_picture.motion_val[dir][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x; |
s->mv[dir][n][1] = s->current_picture.motion_val[dir][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y; |
if (mvn == 1) { /* duplicate motion data for 1-MV block */ |
s->current_picture.motion_val[dir][xy + 1 ][0] = s->current_picture.motion_val[dir][xy][0]; |
s->current_picture.motion_val[dir][xy + 1 ][1] = s->current_picture.motion_val[dir][xy][1]; |
s->current_picture.motion_val[dir][xy + wrap ][0] = s->current_picture.motion_val[dir][xy][0]; |
s->current_picture.motion_val[dir][xy + wrap ][1] = s->current_picture.motion_val[dir][xy][1]; |
s->current_picture.motion_val[dir][xy + wrap + 1][0] = s->current_picture.motion_val[dir][xy][0]; |
s->current_picture.motion_val[dir][xy + wrap + 1][1] = s->current_picture.motion_val[dir][xy][1]; |
} else if (mvn == 2) { /* duplicate motion data for 2-Field MV block */ |
s->current_picture.motion_val[dir][xy + 1][0] = s->current_picture.motion_val[dir][xy][0]; |
s->current_picture.motion_val[dir][xy + 1][1] = s->current_picture.motion_val[dir][xy][1]; |
s->mv[dir][n + 1][0] = s->mv[dir][n][0]; |
s->mv[dir][n + 1][1] = s->mv[dir][n][1]; |
} |
} |
|
/** Motion compensation for direct or interpolated blocks in B-frames |
*/ |
static void vc1_interp_mc(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
H264ChromaContext *h264chroma = &v->h264chroma; |
uint8_t *srcY, *srcU, *srcV; |
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
int off, off_uv; |
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
int use_ic = v->next_use_ic; |
|
if (!v->field_mode && !v->s.next_picture.f.data[0]) |
return; |
|
mx = s->mv[1][0][0]; |
my = s->mv[1][0][1]; |
uvmx = (mx + ((mx & 3) == 3)) >> 1; |
uvmy = (my + ((my & 3) == 3)) >> 1; |
if (v->field_mode) { |
if (v->cur_field_type != v->ref_field_type[1]) |
my = my - 2 + 4 * v->cur_field_type; |
uvmy = uvmy - 2 + 4 * v->cur_field_type; |
} |
if (v->fastuvmc) { |
uvmx = uvmx + ((uvmx < 0) ? -(uvmx & 1) : (uvmx & 1)); |
uvmy = uvmy + ((uvmy < 0) ? -(uvmy & 1) : (uvmy & 1)); |
} |
srcY = s->next_picture.f.data[0]; |
srcU = s->next_picture.f.data[1]; |
srcV = s->next_picture.f.data[2]; |
|
src_x = s->mb_x * 16 + (mx >> 2); |
src_y = s->mb_y * 16 + (my >> 2); |
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
|
if (v->profile != PROFILE_ADVANCED) { |
src_x = av_clip( src_x, -16, s->mb_width * 16); |
src_y = av_clip( src_y, -16, s->mb_height * 16); |
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
} else { |
src_x = av_clip( src_x, -17, s->avctx->coded_width); |
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); |
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
} |
|
srcY += src_y * s->linesize + src_x; |
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
|
if (v->field_mode && v->ref_field_type[1]) { |
srcY += s->current_picture_ptr->f.linesize[0]; |
srcU += s->current_picture_ptr->f.linesize[1]; |
srcV += s->current_picture_ptr->f.linesize[2]; |
} |
|
/* for grayscale we should not try to read from unknown area */ |
if (s->flags & CODEC_FLAG_GRAY) { |
srcU = s->edge_emu_buffer + 18 * s->linesize; |
srcV = s->edge_emu_buffer + 18 * s->linesize; |
} |
|
if (v->rangeredfrm || s->h_edge_pos < 22 || v_edge_pos < 22 || use_ic |
|| (unsigned)(src_x - 1) > s->h_edge_pos - (mx & 3) - 16 - 3 |
|| (unsigned)(src_y - 1) > v_edge_pos - (my & 3) - 16 - 3) { |
uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize; |
|
srcY -= s->mspel * (1 + s->linesize); |
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->linesize, srcY, s->linesize, |
17 + s->mspel * 2, 17 + s->mspel * 2, |
src_x - s->mspel, src_y - s->mspel, |
s->h_edge_pos, v_edge_pos); |
srcY = s->edge_emu_buffer; |
s->vdsp.emulated_edge_mc(uvbuf, s->uvlinesize, srcU, s->uvlinesize, |
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
s->vdsp.emulated_edge_mc(uvbuf + 16, s->uvlinesize, srcV, s->uvlinesize, |
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
s->h_edge_pos >> 1, v_edge_pos >> 1); |
srcU = uvbuf; |
srcV = uvbuf + 16; |
/* if we deal with range reduction we need to scale source blocks */ |
if (v->rangeredfrm) { |
int i, j; |
uint8_t *src, *src2; |
|
src = srcY; |
for (j = 0; j < 17 + s->mspel * 2; j++) { |
for (i = 0; i < 17 + s->mspel * 2; i++) |
src[i] = ((src[i] - 128) >> 1) + 128; |
src += s->linesize; |
} |
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
for (i = 0; i < 9; i++) { |
src[i] = ((src[i] - 128) >> 1) + 128; |
src2[i] = ((src2[i] - 128) >> 1) + 128; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
|
if (use_ic) { |
uint8_t (*luty )[256] = v->next_luty; |
uint8_t (*lutuv)[256] = v->next_lutuv; |
int i, j; |
uint8_t *src, *src2; |
|
src = srcY; |
for (j = 0; j < 17 + s->mspel * 2; j++) { |
int f = v->field_mode ? v->ref_field_type[1] : ((j+src_y - s->mspel) & 1); |
for (i = 0; i < 17 + s->mspel * 2; i++) |
src[i] = luty[f][src[i]]; |
src += s->linesize; |
} |
src = srcU; |
src2 = srcV; |
for (j = 0; j < 9; j++) { |
int f = v->field_mode ? v->ref_field_type[1] : ((j+uvsrc_y) & 1); |
for (i = 0; i < 9; i++) { |
src[i] = lutuv[f][src[i]]; |
src2[i] = lutuv[f][src2[i]]; |
} |
src += s->uvlinesize; |
src2 += s->uvlinesize; |
} |
} |
srcY += s->mspel * (1 + s->linesize); |
} |
|
off = 0; |
off_uv = 0; |
|
if (s->mspel) { |
dxy = ((my & 3) << 2) | (mx & 3); |
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off , srcY , s->linesize, v->rnd); |
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8, srcY + 8, s->linesize, v->rnd); |
srcY += s->linesize * 8; |
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8 * s->linesize , srcY , s->linesize, v->rnd); |
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd); |
} else { // hpel mc |
dxy = (my & 2) | ((mx & 2) >> 1); |
|
if (!v->rnd) |
s->hdsp.avg_pixels_tab[0][dxy](s->dest[0] + off, srcY, s->linesize, 16); |
else |
s->hdsp.avg_no_rnd_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, 16); |
} |
|
if (s->flags & CODEC_FLAG_GRAY) return; |
/* Chroma MC always uses qpel blilinear */ |
uvmx = (uvmx & 3) << 1; |
uvmy = (uvmy & 3) << 1; |
if (!v->rnd) { |
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy); |
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy); |
} else { |
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy); |
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy); |
} |
} |
|
static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs) |
{ |
int n = bfrac; |
|
#if B_FRACTION_DEN==256 |
if (inv) |
n -= 256; |
if (!qs) |
return 2 * ((value * n + 255) >> 9); |
return (value * n + 128) >> 8; |
#else |
if (inv) |
n -= B_FRACTION_DEN; |
if (!qs) |
return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN)); |
return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN; |
#endif |
} |
|
/** Reconstruct motion vector for B-frame and do motion compensation |
*/ |
static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], |
int direct, int mode) |
{ |
if (direct) { |
vc1_mc_1mv(v, 0); |
vc1_interp_mc(v); |
return; |
} |
if (mode == BMV_TYPE_INTERPOLATED) { |
vc1_mc_1mv(v, 0); |
vc1_interp_mc(v); |
return; |
} |
|
vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD)); |
} |
|
static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], |
int direct, int mvtype) |
{ |
MpegEncContext *s = &v->s; |
int xy, wrap, off = 0; |
int16_t *A, *B, *C; |
int px, py; |
int sum; |
int r_x, r_y; |
const uint8_t *is_intra = v->mb_type[0]; |
|
r_x = v->range_x; |
r_y = v->range_y; |
/* scale MV difference to be quad-pel */ |
dmv_x[0] <<= 1 - s->quarter_sample; |
dmv_y[0] <<= 1 - s->quarter_sample; |
dmv_x[1] <<= 1 - s->quarter_sample; |
dmv_y[1] <<= 1 - s->quarter_sample; |
|
wrap = s->b8_stride; |
xy = s->block_index[0]; |
|
if (s->mb_intra) { |
s->current_picture.motion_val[0][xy + v->blocks_off][0] = |
s->current_picture.motion_val[0][xy + v->blocks_off][1] = |
s->current_picture.motion_val[1][xy + v->blocks_off][0] = |
s->current_picture.motion_val[1][xy + v->blocks_off][1] = 0; |
return; |
} |
if (!v->field_mode) { |
s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample); |
s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample); |
s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample); |
s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample); |
|
/* Pullback predicted motion vectors as specified in 8.4.5.4 */ |
s->mv[0][0][0] = av_clip(s->mv[0][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); |
s->mv[0][0][1] = av_clip(s->mv[0][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6)); |
s->mv[1][0][0] = av_clip(s->mv[1][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); |
s->mv[1][0][1] = av_clip(s->mv[1][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6)); |
} |
if (direct) { |
s->current_picture.motion_val[0][xy + v->blocks_off][0] = s->mv[0][0][0]; |
s->current_picture.motion_val[0][xy + v->blocks_off][1] = s->mv[0][0][1]; |
s->current_picture.motion_val[1][xy + v->blocks_off][0] = s->mv[1][0][0]; |
s->current_picture.motion_val[1][xy + v->blocks_off][1] = s->mv[1][0][1]; |
return; |
} |
|
if ((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) { |
C = s->current_picture.motion_val[0][xy - 2]; |
A = s->current_picture.motion_val[0][xy - wrap * 2]; |
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
B = s->current_picture.motion_val[0][xy - wrap * 2 + off]; |
|
if (!s->mb_x) C[0] = C[1] = 0; |
if (!s->first_slice_line) { // predictor A is not out of bounds |
if (s->mb_width == 1) { |
px = A[0]; |
py = A[1]; |
} else { |
px = mid_pred(A[0], B[0], C[0]); |
py = mid_pred(A[1], B[1], C[1]); |
} |
} else if (s->mb_x) { // predictor C is not out of bounds |
px = C[0]; |
py = C[1]; |
} else { |
px = py = 0; |
} |
/* Pullback MV as specified in 8.3.5.3.4 */ |
{ |
int qx, qy, X, Y; |
if (v->profile < PROFILE_ADVANCED) { |
qx = (s->mb_x << 5); |
qy = (s->mb_y << 5); |
X = (s->mb_width << 5) - 4; |
Y = (s->mb_height << 5) - 4; |
if (qx + px < -28) px = -28 - qx; |
if (qy + py < -28) py = -28 - qy; |
if (qx + px > X) px = X - qx; |
if (qy + py > Y) py = Y - qy; |
} else { |
qx = (s->mb_x << 6); |
qy = (s->mb_y << 6); |
X = (s->mb_width << 6) - 4; |
Y = (s->mb_height << 6) - 4; |
if (qx + px < -60) px = -60 - qx; |
if (qy + py < -60) py = -60 - qy; |
if (qx + px > X) px = X - qx; |
if (qy + py > Y) py = Y - qy; |
} |
} |
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */ |
if (0 && !s->first_slice_line && s->mb_x) { |
if (is_intra[xy - wrap]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - A[0]) + FFABS(py - A[1]); |
if (sum > 32) { |
if (get_bits1(&s->gb)) { |
px = A[0]; |
py = A[1]; |
} else { |
px = C[0]; |
py = C[1]; |
} |
} else { |
if (is_intra[xy - 2]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - C[0]) + FFABS(py - C[1]); |
if (sum > 32) { |
if (get_bits1(&s->gb)) { |
px = A[0]; |
py = A[1]; |
} else { |
px = C[0]; |
py = C[1]; |
} |
} |
} |
} |
/* store MV using signed modulus of MV range defined in 4.11 */ |
s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x; |
s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y; |
} |
if ((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) { |
C = s->current_picture.motion_val[1][xy - 2]; |
A = s->current_picture.motion_val[1][xy - wrap * 2]; |
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
B = s->current_picture.motion_val[1][xy - wrap * 2 + off]; |
|
if (!s->mb_x) |
C[0] = C[1] = 0; |
if (!s->first_slice_line) { // predictor A is not out of bounds |
if (s->mb_width == 1) { |
px = A[0]; |
py = A[1]; |
} else { |
px = mid_pred(A[0], B[0], C[0]); |
py = mid_pred(A[1], B[1], C[1]); |
} |
} else if (s->mb_x) { // predictor C is not out of bounds |
px = C[0]; |
py = C[1]; |
} else { |
px = py = 0; |
} |
/* Pullback MV as specified in 8.3.5.3.4 */ |
{ |
int qx, qy, X, Y; |
if (v->profile < PROFILE_ADVANCED) { |
qx = (s->mb_x << 5); |
qy = (s->mb_y << 5); |
X = (s->mb_width << 5) - 4; |
Y = (s->mb_height << 5) - 4; |
if (qx + px < -28) px = -28 - qx; |
if (qy + py < -28) py = -28 - qy; |
if (qx + px > X) px = X - qx; |
if (qy + py > Y) py = Y - qy; |
} else { |
qx = (s->mb_x << 6); |
qy = (s->mb_y << 6); |
X = (s->mb_width << 6) - 4; |
Y = (s->mb_height << 6) - 4; |
if (qx + px < -60) px = -60 - qx; |
if (qy + py < -60) py = -60 - qy; |
if (qx + px > X) px = X - qx; |
if (qy + py > Y) py = Y - qy; |
} |
} |
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */ |
if (0 && !s->first_slice_line && s->mb_x) { |
if (is_intra[xy - wrap]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - A[0]) + FFABS(py - A[1]); |
if (sum > 32) { |
if (get_bits1(&s->gb)) { |
px = A[0]; |
py = A[1]; |
} else { |
px = C[0]; |
py = C[1]; |
} |
} else { |
if (is_intra[xy - 2]) |
sum = FFABS(px) + FFABS(py); |
else |
sum = FFABS(px - C[0]) + FFABS(py - C[1]); |
if (sum > 32) { |
if (get_bits1(&s->gb)) { |
px = A[0]; |
py = A[1]; |
} else { |
px = C[0]; |
py = C[1]; |
} |
} |
} |
} |
/* store MV using signed modulus of MV range defined in 4.11 */ |
|
s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x; |
s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y; |
} |
s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0]; |
s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1]; |
s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0]; |
s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1]; |
} |
|
static inline void vc1_pred_b_mv_intfi(VC1Context *v, int n, int *dmv_x, int *dmv_y, int mv1, int *pred_flag) |
{ |
int dir = (v->bmvtype == BMV_TYPE_BACKWARD) ? 1 : 0; |
MpegEncContext *s = &v->s; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
|
if (v->bmvtype == BMV_TYPE_DIRECT) { |
int total_opp, k, f; |
if (s->next_picture.mb_type[mb_pos + v->mb_off] != MB_TYPE_INTRA) { |
s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][0], |
v->bfraction, 0, s->quarter_sample); |
s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][1], |
v->bfraction, 0, s->quarter_sample); |
s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][0], |
v->bfraction, 1, s->quarter_sample); |
s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][1], |
v->bfraction, 1, s->quarter_sample); |
|
total_opp = v->mv_f_next[0][s->block_index[0] + v->blocks_off] |
+ v->mv_f_next[0][s->block_index[1] + v->blocks_off] |
+ v->mv_f_next[0][s->block_index[2] + v->blocks_off] |
+ v->mv_f_next[0][s->block_index[3] + v->blocks_off]; |
f = (total_opp > 2) ? 1 : 0; |
} else { |
s->mv[0][0][0] = s->mv[0][0][1] = 0; |
s->mv[1][0][0] = s->mv[1][0][1] = 0; |
f = 0; |
} |
v->ref_field_type[0] = v->ref_field_type[1] = v->cur_field_type ^ f; |
for (k = 0; k < 4; k++) { |
s->current_picture.motion_val[0][s->block_index[k] + v->blocks_off][0] = s->mv[0][0][0]; |
s->current_picture.motion_val[0][s->block_index[k] + v->blocks_off][1] = s->mv[0][0][1]; |
s->current_picture.motion_val[1][s->block_index[k] + v->blocks_off][0] = s->mv[1][0][0]; |
s->current_picture.motion_val[1][s->block_index[k] + v->blocks_off][1] = s->mv[1][0][1]; |
v->mv_f[0][s->block_index[k] + v->blocks_off] = f; |
v->mv_f[1][s->block_index[k] + v->blocks_off] = f; |
} |
return; |
} |
if (v->bmvtype == BMV_TYPE_INTERPOLATED) { |
vc1_pred_mv(v, 0, dmv_x[0], dmv_y[0], 1, v->range_x, v->range_y, v->mb_type[0], pred_flag[0], 0); |
vc1_pred_mv(v, 0, dmv_x[1], dmv_y[1], 1, v->range_x, v->range_y, v->mb_type[0], pred_flag[1], 1); |
return; |
} |
if (dir) { // backward |
vc1_pred_mv(v, n, dmv_x[1], dmv_y[1], mv1, v->range_x, v->range_y, v->mb_type[0], pred_flag[1], 1); |
if (n == 3 || mv1) { |
vc1_pred_mv(v, 0, dmv_x[0], dmv_y[0], 1, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
} |
} else { // forward |
vc1_pred_mv(v, n, dmv_x[0], dmv_y[0], mv1, v->range_x, v->range_y, v->mb_type[0], pred_flag[0], 0); |
if (n == 3 || mv1) { |
vc1_pred_mv(v, 0, dmv_x[1], dmv_y[1], 1, v->range_x, v->range_y, v->mb_type[0], 0, 1); |
} |
} |
} |
|
/** Get predicted DC value for I-frames only |
* prediction dir: left=0, top=1 |
* @param s MpegEncContext |
* @param overlap flag indicating that overlap filtering is used |
* @param pq integer part of picture quantizer |
* @param[in] n block index in the current MB |
* @param dc_val_ptr Pointer to DC predictor |
* @param dir_ptr Prediction direction for use in AC prediction |
*/ |
static inline int vc1_i_pred_dc(MpegEncContext *s, int overlap, int pq, int n, |
int16_t **dc_val_ptr, int *dir_ptr) |
{ |
int a, b, c, wrap, pred, scale; |
int16_t *dc_val; |
static const uint16_t dcpred[32] = { |
-1, 1024, 512, 341, 256, 205, 171, 146, 128, |
114, 102, 93, 85, 79, 73, 68, 64, |
60, 57, 54, 51, 49, 47, 45, 43, |
41, 39, 38, 37, 35, 34, 33 |
}; |
|
/* find prediction - wmv3_dc_scale always used here in fact */ |
if (n < 4) scale = s->y_dc_scale; |
else scale = s->c_dc_scale; |
|
wrap = s->block_wrap[n]; |
dc_val = s->dc_val[0] + s->block_index[n]; |
|
/* B A |
* C X |
*/ |
c = dc_val[ - 1]; |
b = dc_val[ - 1 - wrap]; |
a = dc_val[ - wrap]; |
|
if (pq < 9 || !overlap) { |
/* Set outer values */ |
if (s->first_slice_line && (n != 2 && n != 3)) |
b = a = dcpred[scale]; |
if (s->mb_x == 0 && (n != 1 && n != 3)) |
b = c = dcpred[scale]; |
} else { |
/* Set outer values */ |
if (s->first_slice_line && (n != 2 && n != 3)) |
b = a = 0; |
if (s->mb_x == 0 && (n != 1 && n != 3)) |
b = c = 0; |
} |
|
if (abs(a - b) <= abs(b - c)) { |
pred = c; |
*dir_ptr = 1; // left |
} else { |
pred = a; |
*dir_ptr = 0; // top |
} |
|
/* update predictor */ |
*dc_val_ptr = &dc_val[0]; |
return pred; |
} |
|
|
/** Get predicted DC value |
* prediction dir: left=0, top=1 |
* @param s MpegEncContext |
* @param overlap flag indicating that overlap filtering is used |
* @param pq integer part of picture quantizer |
* @param[in] n block index in the current MB |
* @param a_avail flag indicating top block availability |
* @param c_avail flag indicating left block availability |
* @param dc_val_ptr Pointer to DC predictor |
* @param dir_ptr Prediction direction for use in AC prediction |
*/ |
static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n, |
int a_avail, int c_avail, |
int16_t **dc_val_ptr, int *dir_ptr) |
{ |
int a, b, c, wrap, pred; |
int16_t *dc_val; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int q1, q2 = 0; |
int dqscale_index; |
|
wrap = s->block_wrap[n]; |
dc_val = s->dc_val[0] + s->block_index[n]; |
|
/* B A |
* C X |
*/ |
c = dc_val[ - 1]; |
b = dc_val[ - 1 - wrap]; |
a = dc_val[ - wrap]; |
/* scale predictors if needed */ |
q1 = s->current_picture.qscale_table[mb_pos]; |
dqscale_index = s->y_dc_scale_table[q1] - 1; |
if (dqscale_index < 0) |
return 0; |
if (c_avail && (n != 1 && n != 3)) { |
q2 = s->current_picture.qscale_table[mb_pos - 1]; |
if (q2 && q2 != q1) |
c = (c * s->y_dc_scale_table[q2] * ff_vc1_dqscale[dqscale_index] + 0x20000) >> 18; |
} |
if (a_avail && (n != 2 && n != 3)) { |
q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride]; |
if (q2 && q2 != q1) |
a = (a * s->y_dc_scale_table[q2] * ff_vc1_dqscale[dqscale_index] + 0x20000) >> 18; |
} |
if (a_avail && c_avail && (n != 3)) { |
int off = mb_pos; |
if (n != 1) |
off--; |
if (n != 2) |
off -= s->mb_stride; |
q2 = s->current_picture.qscale_table[off]; |
if (q2 && q2 != q1) |
b = (b * s->y_dc_scale_table[q2] * ff_vc1_dqscale[dqscale_index] + 0x20000) >> 18; |
} |
|
if (a_avail && c_avail) { |
if (abs(a - b) <= abs(b - c)) { |
pred = c; |
*dir_ptr = 1; // left |
} else { |
pred = a; |
*dir_ptr = 0; // top |
} |
} else if (a_avail) { |
pred = a; |
*dir_ptr = 0; // top |
} else if (c_avail) { |
pred = c; |
*dir_ptr = 1; // left |
} else { |
pred = 0; |
*dir_ptr = 1; // left |
} |
|
/* update predictor */ |
*dc_val_ptr = &dc_val[0]; |
return pred; |
} |
|
/** @} */ // Block group |
|
/** |
* @name VC1 Macroblock-level functions in Simple/Main Profiles |
* @see 7.1.4, p91 and 8.1.1.7, p(1)04 |
* @{ |
*/ |
|
static inline int vc1_coded_block_pred(MpegEncContext * s, int n, |
uint8_t **coded_block_ptr) |
{ |
int xy, wrap, pred, a, b, c; |
|
xy = s->block_index[n]; |
wrap = s->b8_stride; |
|
/* B C |
* A X |
*/ |
a = s->coded_block[xy - 1 ]; |
b = s->coded_block[xy - 1 - wrap]; |
c = s->coded_block[xy - wrap]; |
|
if (b == c) { |
pred = a; |
} else { |
pred = c; |
} |
|
/* store value */ |
*coded_block_ptr = &s->coded_block[xy]; |
|
return pred; |
} |
|
/** |
* Decode one AC coefficient |
* @param v The VC1 context |
* @param last Last coefficient |
* @param skip How much zero coefficients to skip |
* @param value Decoded AC coefficient value |
* @param codingset set of VLC to decode data |
* @see 8.1.3.4 |
*/ |
static void vc1_decode_ac_coeff(VC1Context *v, int *last, int *skip, |
int *value, int codingset) |
{ |
GetBitContext *gb = &v->s.gb; |
int index, escape, run = 0, level = 0, lst = 0; |
|
index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3); |
if (index != ff_vc1_ac_sizes[codingset] - 1) { |
run = vc1_index_decode_table[codingset][index][0]; |
level = vc1_index_decode_table[codingset][index][1]; |
lst = index >= vc1_last_decode_table[codingset] || get_bits_left(gb) < 0; |
if (get_bits1(gb)) |
level = -level; |
} else { |
escape = decode210(gb); |
if (escape != 2) { |
index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3); |
run = vc1_index_decode_table[codingset][index][0]; |
level = vc1_index_decode_table[codingset][index][1]; |
lst = index >= vc1_last_decode_table[codingset]; |
if (escape == 0) { |
if (lst) |
level += vc1_last_delta_level_table[codingset][run]; |
else |
level += vc1_delta_level_table[codingset][run]; |
} else { |
if (lst) |
run += vc1_last_delta_run_table[codingset][level] + 1; |
else |
run += vc1_delta_run_table[codingset][level] + 1; |
} |
if (get_bits1(gb)) |
level = -level; |
} else { |
int sign; |
lst = get_bits1(gb); |
if (v->s.esc3_level_length == 0) { |
if (v->pq < 8 || v->dquantfrm) { // table 59 |
v->s.esc3_level_length = get_bits(gb, 3); |
if (!v->s.esc3_level_length) |
v->s.esc3_level_length = get_bits(gb, 2) + 8; |
} else { // table 60 |
v->s.esc3_level_length = get_unary(gb, 1, 6) + 2; |
} |
v->s.esc3_run_length = 3 + get_bits(gb, 2); |
} |
run = get_bits(gb, v->s.esc3_run_length); |
sign = get_bits1(gb); |
level = get_bits(gb, v->s.esc3_level_length); |
if (sign) |
level = -level; |
} |
} |
|
*last = lst; |
*skip = run; |
*value = level; |
} |
|
/** Decode intra block in intra frames - should be faster than decode_intra_block |
* @param v VC1Context |
* @param block block to decode |
* @param[in] n subblock index |
* @param coded are AC coeffs present or not |
* @param codingset set of VLC to decode data |
*/ |
static int vc1_decode_i_block(VC1Context *v, int16_t block[64], int n, |
int coded, int codingset) |
{ |
GetBitContext *gb = &v->s.gb; |
MpegEncContext *s = &v->s; |
int dc_pred_dir = 0; /* Direction of the DC prediction used */ |
int i; |
int16_t *dc_val; |
int16_t *ac_val, *ac_val2; |
int dcdiff; |
|
/* Get DC differential */ |
if (n < 4) { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} else { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} |
if (dcdiff < 0) { |
av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); |
return -1; |
} |
if (dcdiff) { |
if (dcdiff == 119 /* ESC index value */) { |
/* TODO: Optimize */ |
if (v->pq == 1) dcdiff = get_bits(gb, 10); |
else if (v->pq == 2) dcdiff = get_bits(gb, 9); |
else dcdiff = get_bits(gb, 8); |
} else { |
if (v->pq == 1) |
dcdiff = (dcdiff << 2) + get_bits(gb, 2) - 3; |
else if (v->pq == 2) |
dcdiff = (dcdiff << 1) + get_bits1(gb) - 1; |
} |
if (get_bits1(gb)) |
dcdiff = -dcdiff; |
} |
|
/* Prediction */ |
dcdiff += vc1_i_pred_dc(&v->s, v->overlap, v->pq, n, &dc_val, &dc_pred_dir); |
*dc_val = dcdiff; |
|
/* Store the quantized DC coeff, used for prediction */ |
if (n < 4) { |
block[0] = dcdiff * s->y_dc_scale; |
} else { |
block[0] = dcdiff * s->c_dc_scale; |
} |
/* Skip ? */ |
if (!coded) { |
goto not_coded; |
} |
|
// AC Decoding |
i = 1; |
|
{ |
int last = 0, skip, value; |
const uint8_t *zz_table; |
int scale; |
int k; |
|
scale = v->pq * 2 + v->halfpq; |
|
if (v->s.ac_pred) { |
if (!dc_pred_dir) |
zz_table = v->zz_8x8[2]; |
else |
zz_table = v->zz_8x8[3]; |
} else |
zz_table = v->zz_8x8[1]; |
|
ac_val = s->ac_val[0][0] + s->block_index[n] * 16; |
ac_val2 = ac_val; |
if (dc_pred_dir) // left |
ac_val -= 16; |
else // top |
ac_val -= 16 * s->block_wrap[n]; |
|
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); |
i += skip; |
if (i > 63) |
break; |
block[zz_table[i++]] = value; |
} |
|
/* apply AC prediction if needed */ |
if (s->ac_pred) { |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) |
block[k << v->left_blk_sh] += ac_val[k]; |
} else { // top |
for (k = 1; k < 8; k++) |
block[k << v->top_blk_sh] += ac_val[k + 8]; |
} |
} |
/* save AC coeffs for further prediction */ |
for (k = 1; k < 8; k++) { |
ac_val2[k] = block[k << v->left_blk_sh]; |
ac_val2[k + 8] = block[k << v->top_blk_sh]; |
} |
|
/* scale AC coeffs */ |
for (k = 1; k < 64; k++) |
if (block[k]) { |
block[k] *= scale; |
if (!v->pquantizer) |
block[k] += (block[k] < 0) ? -v->pq : v->pq; |
} |
|
if (s->ac_pred) i = 63; |
} |
|
not_coded: |
if (!coded) { |
int k, scale; |
ac_val = s->ac_val[0][0] + s->block_index[n] * 16; |
ac_val2 = ac_val; |
|
i = 0; |
scale = v->pq * 2 + v->halfpq; |
memset(ac_val2, 0, 16 * 2); |
if (dc_pred_dir) { // left |
ac_val -= 16; |
if (s->ac_pred) |
memcpy(ac_val2, ac_val, 8 * 2); |
} else { // top |
ac_val -= 16 * s->block_wrap[n]; |
if (s->ac_pred) |
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2); |
} |
|
/* apply AC prediction if needed */ |
if (s->ac_pred) { |
if (dc_pred_dir) { //left |
for (k = 1; k < 8; k++) { |
block[k << v->left_blk_sh] = ac_val[k] * scale; |
if (!v->pquantizer && block[k << v->left_blk_sh]) |
block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -v->pq : v->pq; |
} |
} else { // top |
for (k = 1; k < 8; k++) { |
block[k << v->top_blk_sh] = ac_val[k + 8] * scale; |
if (!v->pquantizer && block[k << v->top_blk_sh]) |
block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -v->pq : v->pq; |
} |
} |
i = 63; |
} |
} |
s->block_last_index[n] = i; |
|
return 0; |
} |
|
/** Decode intra block in intra frames - should be faster than decode_intra_block |
* @param v VC1Context |
* @param block block to decode |
* @param[in] n subblock number |
* @param coded are AC coeffs present or not |
* @param codingset set of VLC to decode data |
* @param mquant quantizer value for this macroblock |
*/ |
static int vc1_decode_i_block_adv(VC1Context *v, int16_t block[64], int n, |
int coded, int codingset, int mquant) |
{ |
GetBitContext *gb = &v->s.gb; |
MpegEncContext *s = &v->s; |
int dc_pred_dir = 0; /* Direction of the DC prediction used */ |
int i; |
int16_t *dc_val = NULL; |
int16_t *ac_val, *ac_val2; |
int dcdiff; |
int a_avail = v->a_avail, c_avail = v->c_avail; |
int use_pred = s->ac_pred; |
int scale; |
int q1, q2 = 0; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
|
/* Get DC differential */ |
if (n < 4) { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} else { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} |
if (dcdiff < 0) { |
av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); |
return -1; |
} |
if (dcdiff) { |
if (dcdiff == 119 /* ESC index value */) { |
/* TODO: Optimize */ |
if (mquant == 1) dcdiff = get_bits(gb, 10); |
else if (mquant == 2) dcdiff = get_bits(gb, 9); |
else dcdiff = get_bits(gb, 8); |
} else { |
if (mquant == 1) |
dcdiff = (dcdiff << 2) + get_bits(gb, 2) - 3; |
else if (mquant == 2) |
dcdiff = (dcdiff << 1) + get_bits1(gb) - 1; |
} |
if (get_bits1(gb)) |
dcdiff = -dcdiff; |
} |
|
/* Prediction */ |
dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir); |
*dc_val = dcdiff; |
|
/* Store the quantized DC coeff, used for prediction */ |
if (n < 4) { |
block[0] = dcdiff * s->y_dc_scale; |
} else { |
block[0] = dcdiff * s->c_dc_scale; |
} |
|
//AC Decoding |
i = 1; |
|
/* check if AC is needed at all */ |
if (!a_avail && !c_avail) |
use_pred = 0; |
ac_val = s->ac_val[0][0] + s->block_index[n] * 16; |
ac_val2 = ac_val; |
|
scale = mquant * 2 + ((mquant == v->pq) ? v->halfpq : 0); |
|
if (dc_pred_dir) // left |
ac_val -= 16; |
else // top |
ac_val -= 16 * s->block_wrap[n]; |
|
q1 = s->current_picture.qscale_table[mb_pos]; |
if ( dc_pred_dir && c_avail && mb_pos) |
q2 = s->current_picture.qscale_table[mb_pos - 1]; |
if (!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) |
q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride]; |
if ( dc_pred_dir && n == 1) |
q2 = q1; |
if (!dc_pred_dir && n == 2) |
q2 = q1; |
if (n == 3) |
q2 = q1; |
|
if (coded) { |
int last = 0, skip, value; |
const uint8_t *zz_table; |
int k; |
|
if (v->s.ac_pred) { |
if (!use_pred && v->fcm == ILACE_FRAME) { |
zz_table = v->zzi_8x8; |
} else { |
if (!dc_pred_dir) // top |
zz_table = v->zz_8x8[2]; |
else // left |
zz_table = v->zz_8x8[3]; |
} |
} else { |
if (v->fcm != ILACE_FRAME) |
zz_table = v->zz_8x8[1]; |
else |
zz_table = v->zzi_8x8; |
} |
|
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); |
i += skip; |
if (i > 63) |
break; |
block[zz_table[i++]] = value; |
} |
|
/* apply AC prediction if needed */ |
if (use_pred) { |
/* scale predictors if needed*/ |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
|
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) |
block[k << v->left_blk_sh] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} else { // top |
for (k = 1; k < 8; k++) |
block[k << v->top_blk_sh] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} else { |
if (dc_pred_dir) { //left |
for (k = 1; k < 8; k++) |
block[k << v->left_blk_sh] += ac_val[k]; |
} else { //top |
for (k = 1; k < 8; k++) |
block[k << v->top_blk_sh] += ac_val[k + 8]; |
} |
} |
} |
/* save AC coeffs for further prediction */ |
for (k = 1; k < 8; k++) { |
ac_val2[k ] = block[k << v->left_blk_sh]; |
ac_val2[k + 8] = block[k << v->top_blk_sh]; |
} |
|
/* scale AC coeffs */ |
for (k = 1; k < 64; k++) |
if (block[k]) { |
block[k] *= scale; |
if (!v->pquantizer) |
block[k] += (block[k] < 0) ? -mquant : mquant; |
} |
|
if (use_pred) i = 63; |
} else { // no AC coeffs |
int k; |
|
memset(ac_val2, 0, 16 * 2); |
if (dc_pred_dir) { // left |
if (use_pred) { |
memcpy(ac_val2, ac_val, 8 * 2); |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
for (k = 1; k < 8; k++) |
ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} |
} else { // top |
if (use_pred) { |
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2); |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
for (k = 1; k < 8; k++) |
ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} |
} |
|
/* apply AC prediction if needed */ |
if (use_pred) { |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) { |
block[k << v->left_blk_sh] = ac_val2[k] * scale; |
if (!v->pquantizer && block[k << v->left_blk_sh]) |
block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -mquant : mquant; |
} |
} else { // top |
for (k = 1; k < 8; k++) { |
block[k << v->top_blk_sh] = ac_val2[k + 8] * scale; |
if (!v->pquantizer && block[k << v->top_blk_sh]) |
block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -mquant : mquant; |
} |
} |
i = 63; |
} |
} |
s->block_last_index[n] = i; |
|
return 0; |
} |
|
/** Decode intra block in inter frames - more generic version than vc1_decode_i_block |
* @param v VC1Context |
* @param block block to decode |
* @param[in] n subblock index |
* @param coded are AC coeffs present or not |
* @param mquant block quantizer |
* @param codingset set of VLC to decode data |
*/ |
static int vc1_decode_intra_block(VC1Context *v, int16_t block[64], int n, |
int coded, int mquant, int codingset) |
{ |
GetBitContext *gb = &v->s.gb; |
MpegEncContext *s = &v->s; |
int dc_pred_dir = 0; /* Direction of the DC prediction used */ |
int i; |
int16_t *dc_val = NULL; |
int16_t *ac_val, *ac_val2; |
int dcdiff; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int a_avail = v->a_avail, c_avail = v->c_avail; |
int use_pred = s->ac_pred; |
int scale; |
int q1, q2 = 0; |
|
s->dsp.clear_block(block); |
|
/* XXX: Guard against dumb values of mquant */ |
mquant = (mquant < 1) ? 0 : ((mquant > 31) ? 31 : mquant); |
|
/* Set DC scale - y and c use the same */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
|
/* Get DC differential */ |
if (n < 4) { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} else { |
dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); |
} |
if (dcdiff < 0) { |
av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); |
return -1; |
} |
if (dcdiff) { |
if (dcdiff == 119 /* ESC index value */) { |
/* TODO: Optimize */ |
if (mquant == 1) dcdiff = get_bits(gb, 10); |
else if (mquant == 2) dcdiff = get_bits(gb, 9); |
else dcdiff = get_bits(gb, 8); |
} else { |
if (mquant == 1) |
dcdiff = (dcdiff << 2) + get_bits(gb, 2) - 3; |
else if (mquant == 2) |
dcdiff = (dcdiff << 1) + get_bits1(gb) - 1; |
} |
if (get_bits1(gb)) |
dcdiff = -dcdiff; |
} |
|
/* Prediction */ |
dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, a_avail, c_avail, &dc_val, &dc_pred_dir); |
*dc_val = dcdiff; |
|
/* Store the quantized DC coeff, used for prediction */ |
|
if (n < 4) { |
block[0] = dcdiff * s->y_dc_scale; |
} else { |
block[0] = dcdiff * s->c_dc_scale; |
} |
|
//AC Decoding |
i = 1; |
|
/* check if AC is needed at all and adjust direction if needed */ |
if (!a_avail) dc_pred_dir = 1; |
if (!c_avail) dc_pred_dir = 0; |
if (!a_avail && !c_avail) use_pred = 0; |
ac_val = s->ac_val[0][0] + s->block_index[n] * 16; |
ac_val2 = ac_val; |
|
scale = mquant * 2 + v->halfpq; |
|
if (dc_pred_dir) //left |
ac_val -= 16; |
else //top |
ac_val -= 16 * s->block_wrap[n]; |
|
q1 = s->current_picture.qscale_table[mb_pos]; |
if (dc_pred_dir && c_avail && mb_pos) |
q2 = s->current_picture.qscale_table[mb_pos - 1]; |
if (!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) |
q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride]; |
if ( dc_pred_dir && n == 1) |
q2 = q1; |
if (!dc_pred_dir && n == 2) |
q2 = q1; |
if (n == 3) q2 = q1; |
|
if (coded) { |
int last = 0, skip, value; |
int k; |
|
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); |
i += skip; |
if (i > 63) |
break; |
if (v->fcm == PROGRESSIVE) |
block[v->zz_8x8[0][i++]] = value; |
else { |
if (use_pred && (v->fcm == ILACE_FRAME)) { |
if (!dc_pred_dir) // top |
block[v->zz_8x8[2][i++]] = value; |
else // left |
block[v->zz_8x8[3][i++]] = value; |
} else { |
block[v->zzi_8x8[i++]] = value; |
} |
} |
} |
|
/* apply AC prediction if needed */ |
if (use_pred) { |
/* scale predictors if needed*/ |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
|
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) |
block[k << v->left_blk_sh] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} else { //top |
for (k = 1; k < 8; k++) |
block[k << v->top_blk_sh] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} else { |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) |
block[k << v->left_blk_sh] += ac_val[k]; |
} else { // top |
for (k = 1; k < 8; k++) |
block[k << v->top_blk_sh] += ac_val[k + 8]; |
} |
} |
} |
/* save AC coeffs for further prediction */ |
for (k = 1; k < 8; k++) { |
ac_val2[k ] = block[k << v->left_blk_sh]; |
ac_val2[k + 8] = block[k << v->top_blk_sh]; |
} |
|
/* scale AC coeffs */ |
for (k = 1; k < 64; k++) |
if (block[k]) { |
block[k] *= scale; |
if (!v->pquantizer) |
block[k] += (block[k] < 0) ? -mquant : mquant; |
} |
|
if (use_pred) i = 63; |
} else { // no AC coeffs |
int k; |
|
memset(ac_val2, 0, 16 * 2); |
if (dc_pred_dir) { // left |
if (use_pred) { |
memcpy(ac_val2, ac_val, 8 * 2); |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
for (k = 1; k < 8; k++) |
ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} |
} else { // top |
if (use_pred) { |
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2); |
if (q2 && q1 != q2) { |
q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; |
q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1; |
if (q1 < 1) |
return AVERROR_INVALIDDATA; |
for (k = 1; k < 8; k++) |
ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18; |
} |
} |
} |
|
/* apply AC prediction if needed */ |
if (use_pred) { |
if (dc_pred_dir) { // left |
for (k = 1; k < 8; k++) { |
block[k << v->left_blk_sh] = ac_val2[k] * scale; |
if (!v->pquantizer && block[k << v->left_blk_sh]) |
block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -mquant : mquant; |
} |
} else { // top |
for (k = 1; k < 8; k++) { |
block[k << v->top_blk_sh] = ac_val2[k + 8] * scale; |
if (!v->pquantizer && block[k << v->top_blk_sh]) |
block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -mquant : mquant; |
} |
} |
i = 63; |
} |
} |
s->block_last_index[n] = i; |
|
return 0; |
} |
|
/** Decode P block |
*/ |
static int vc1_decode_p_block(VC1Context *v, int16_t block[64], int n, |
int mquant, int ttmb, int first_block, |
uint8_t *dst, int linesize, int skip_block, |
int *ttmb_out) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i, j; |
int subblkpat = 0; |
int scale, off, idx, last, skip, value; |
int ttblk = ttmb & 7; |
int pat = 0; |
|
s->dsp.clear_block(block); |
|
if (ttmb == -1) { |
ttblk = ff_vc1_ttblk_to_tt[v->tt_index][get_vlc2(gb, ff_vc1_ttblk_vlc[v->tt_index].table, VC1_TTBLK_VLC_BITS, 1)]; |
} |
if (ttblk == TT_4X4) { |
subblkpat = ~(get_vlc2(gb, ff_vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1); |
} |
if ((ttblk != TT_8X8 && ttblk != TT_4X4) |
&& ((v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block)) |
|| (!v->res_rtm_flag && !first_block))) { |
subblkpat = decode012(gb); |
if (subblkpat) |
subblkpat ^= 3; // swap decoded pattern bits |
if (ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) |
ttblk = TT_8X4; |
if (ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) |
ttblk = TT_4X8; |
} |
scale = 2 * mquant + ((v->pq == mquant) ? v->halfpq : 0); |
|
// convert transforms like 8X4_TOP to generic TT and SUBBLKPAT |
if (ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) { |
subblkpat = 2 - (ttblk == TT_8X4_TOP); |
ttblk = TT_8X4; |
} |
if (ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) { |
subblkpat = 2 - (ttblk == TT_4X8_LEFT); |
ttblk = TT_4X8; |
} |
switch (ttblk) { |
case TT_8X8: |
pat = 0xF; |
i = 0; |
last = 0; |
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); |
i += skip; |
if (i > 63) |
break; |
if (!v->fcm) |
idx = v->zz_8x8[0][i++]; |
else |
idx = v->zzi_8x8[i++]; |
block[idx] = value * scale; |
if (!v->pquantizer) |
block[idx] += (block[idx] < 0) ? -mquant : mquant; |
} |
if (!skip_block) { |
if (i == 1) |
v->vc1dsp.vc1_inv_trans_8x8_dc(dst, linesize, block); |
else { |
v->vc1dsp.vc1_inv_trans_8x8(block); |
s->dsp.add_pixels_clamped(block, dst, linesize); |
} |
} |
break; |
case TT_4X4: |
pat = ~subblkpat & 0xF; |
for (j = 0; j < 4; j++) { |
last = subblkpat & (1 << (3 - j)); |
i = 0; |
off = (j & 1) * 4 + (j & 2) * 16; |
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); |
i += skip; |
if (i > 15) |
break; |
if (!v->fcm) |
idx = ff_vc1_simple_progressive_4x4_zz[i++]; |
else |
idx = ff_vc1_adv_interlaced_4x4_zz[i++]; |
block[idx + off] = value * scale; |
if (!v->pquantizer) |
block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant; |
} |
if (!(subblkpat & (1 << (3 - j))) && !skip_block) { |
if (i == 1) |
v->vc1dsp.vc1_inv_trans_4x4_dc(dst + (j & 1) * 4 + (j & 2) * 2 * linesize, linesize, block + off); |
else |
v->vc1dsp.vc1_inv_trans_4x4(dst + (j & 1) * 4 + (j & 2) * 2 * linesize, linesize, block + off); |
} |
} |
break; |
case TT_8X4: |
pat = ~((subblkpat & 2) * 6 + (subblkpat & 1) * 3) & 0xF; |
for (j = 0; j < 2; j++) { |
last = subblkpat & (1 << (1 - j)); |
i = 0; |
off = j * 32; |
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); |
i += skip; |
if (i > 31) |
break; |
if (!v->fcm) |
idx = v->zz_8x4[i++] + off; |
else |
idx = ff_vc1_adv_interlaced_8x4_zz[i++] + off; |
block[idx] = value * scale; |
if (!v->pquantizer) |
block[idx] += (block[idx] < 0) ? -mquant : mquant; |
} |
if (!(subblkpat & (1 << (1 - j))) && !skip_block) { |
if (i == 1) |
v->vc1dsp.vc1_inv_trans_8x4_dc(dst + j * 4 * linesize, linesize, block + off); |
else |
v->vc1dsp.vc1_inv_trans_8x4(dst + j * 4 * linesize, linesize, block + off); |
} |
} |
break; |
case TT_4X8: |
pat = ~(subblkpat * 5) & 0xF; |
for (j = 0; j < 2; j++) { |
last = subblkpat & (1 << (1 - j)); |
i = 0; |
off = j * 4; |
while (!last) { |
vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); |
i += skip; |
if (i > 31) |
break; |
if (!v->fcm) |
idx = v->zz_4x8[i++] + off; |
else |
idx = ff_vc1_adv_interlaced_4x8_zz[i++] + off; |
block[idx] = value * scale; |
if (!v->pquantizer) |
block[idx] += (block[idx] < 0) ? -mquant : mquant; |
} |
if (!(subblkpat & (1 << (1 - j))) && !skip_block) { |
if (i == 1) |
v->vc1dsp.vc1_inv_trans_4x8_dc(dst + j * 4, linesize, block + off); |
else |
v->vc1dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off); |
} |
} |
break; |
} |
if (ttmb_out) |
*ttmb_out |= ttblk << (n * 4); |
return pat; |
} |
|
/** @} */ // Macroblock group |
|
static const int size_table [6] = { 0, 2, 3, 4, 5, 8 }; |
static const int offset_table[6] = { 0, 1, 3, 7, 15, 31 }; |
|
static av_always_inline void vc1_apply_p_v_loop_filter(VC1Context *v, int block_num) |
{ |
MpegEncContext *s = &v->s; |
int mb_cbp = v->cbp[s->mb_x - s->mb_stride], |
block_cbp = mb_cbp >> (block_num * 4), bottom_cbp, |
mb_is_intra = v->is_intra[s->mb_x - s->mb_stride], |
block_is_intra = mb_is_intra >> (block_num * 4), bottom_is_intra; |
int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk; |
uint8_t *dst; |
|
if (block_num > 3) { |
dst = s->dest[block_num - 3]; |
} else { |
dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 8) * linesize; |
} |
if (s->mb_y != s->end_mb_y || block_num < 2) { |
int16_t (*mv)[2]; |
int mv_stride; |
|
if (block_num > 3) { |
bottom_cbp = v->cbp[s->mb_x] >> (block_num * 4); |
bottom_is_intra = v->is_intra[s->mb_x] >> (block_num * 4); |
mv = &v->luma_mv[s->mb_x - s->mb_stride]; |
mv_stride = s->mb_stride; |
} else { |
bottom_cbp = (block_num < 2) ? (mb_cbp >> ((block_num + 2) * 4)) |
: (v->cbp[s->mb_x] >> ((block_num - 2) * 4)); |
bottom_is_intra = (block_num < 2) ? (mb_is_intra >> ((block_num + 2) * 4)) |
: (v->is_intra[s->mb_x] >> ((block_num - 2) * 4)); |
mv_stride = s->b8_stride; |
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - 2 * mv_stride]; |
} |
|
if (bottom_is_intra & 1 || block_is_intra & 1 || |
mv[0][0] != mv[mv_stride][0] || mv[0][1] != mv[mv_stride][1]) { |
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
} else { |
idx = ((bottom_cbp >> 2) | block_cbp) & 3; |
if (idx == 3) { |
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
} else if (idx) { |
if (idx == 1) |
v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq); |
else |
v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq); |
} |
} |
} |
|
dst -= 4 * linesize; |
ttblk = (v->ttblk[s->mb_x - s->mb_stride] >> (block_num * 4)) & 0xF; |
if (ttblk == TT_4X4 || ttblk == TT_8X4) { |
idx = (block_cbp | (block_cbp >> 2)) & 3; |
if (idx == 3) { |
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
} else if (idx) { |
if (idx == 1) |
v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq); |
else |
v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq); |
} |
} |
} |
|
static av_always_inline void vc1_apply_p_h_loop_filter(VC1Context *v, int block_num) |
{ |
MpegEncContext *s = &v->s; |
int mb_cbp = v->cbp[s->mb_x - 1 - s->mb_stride], |
block_cbp = mb_cbp >> (block_num * 4), right_cbp, |
mb_is_intra = v->is_intra[s->mb_x - 1 - s->mb_stride], |
block_is_intra = mb_is_intra >> (block_num * 4), right_is_intra; |
int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk; |
uint8_t *dst; |
|
if (block_num > 3) { |
dst = s->dest[block_num - 3] - 8 * linesize; |
} else { |
dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 16) * linesize - 8; |
} |
|
if (s->mb_x != s->mb_width || !(block_num & 5)) { |
int16_t (*mv)[2]; |
|
if (block_num > 3) { |
right_cbp = v->cbp[s->mb_x - s->mb_stride] >> (block_num * 4); |
right_is_intra = v->is_intra[s->mb_x - s->mb_stride] >> (block_num * 4); |
mv = &v->luma_mv[s->mb_x - s->mb_stride - 1]; |
} else { |
right_cbp = (block_num & 1) ? (v->cbp[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) |
: (mb_cbp >> ((block_num + 1) * 4)); |
right_is_intra = (block_num & 1) ? (v->is_intra[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) |
: (mb_is_intra >> ((block_num + 1) * 4)); |
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - s->b8_stride * 2 - 2]; |
} |
if (block_is_intra & 1 || right_is_intra & 1 || mv[0][0] != mv[1][0] || mv[0][1] != mv[1][1]) { |
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
} else { |
idx = ((right_cbp >> 1) | block_cbp) & 5; // FIXME check |
if (idx == 5) { |
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
} else if (idx) { |
if (idx == 1) |
v->vc1dsp.vc1_h_loop_filter4(dst + 4 * linesize, linesize, v->pq); |
else |
v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq); |
} |
} |
} |
|
dst -= 4; |
ttblk = (v->ttblk[s->mb_x - s->mb_stride - 1] >> (block_num * 4)) & 0xf; |
if (ttblk == TT_4X4 || ttblk == TT_4X8) { |
idx = (block_cbp | (block_cbp >> 1)) & 5; |
if (idx == 5) { |
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
} else if (idx) { |
if (idx == 1) |
v->vc1dsp.vc1_h_loop_filter4(dst + linesize * 4, linesize, v->pq); |
else |
v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq); |
} |
} |
} |
|
static void vc1_apply_p_loop_filter(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
int i; |
|
for (i = 0; i < 6; i++) { |
vc1_apply_p_v_loop_filter(v, i); |
} |
|
/* V always precedes H, therefore we run H one MB before V; |
* at the end of a row, we catch up to complete the row */ |
if (s->mb_x) { |
for (i = 0; i < 6; i++) { |
vc1_apply_p_h_loop_filter(v, i); |
} |
if (s->mb_x == s->mb_width - 1) { |
s->mb_x++; |
ff_update_block_index(s); |
for (i = 0; i < 6; i++) { |
vc1_apply_p_h_loop_filter(v, i); |
} |
} |
} |
} |
|
/** Decode one P-frame MB |
*/ |
static int vc1_decode_p_mb(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i, j; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
|
int mb_has_coeffs = 1; /* last_flag */ |
int dmv_x, dmv_y; /* Differential MV components */ |
int index, index1; /* LUT indexes */ |
int val, sign; /* temp values */ |
int first_block = 1; |
int dst_idx, off; |
int skipped, fourmv; |
int block_cbp = 0, pat, block_tt = 0, block_intra = 0; |
|
mquant = v->pq; /* lossy initialization */ |
|
if (v->mv_type_is_raw) |
fourmv = get_bits1(gb); |
else |
fourmv = v->mv_type_mb_plane[mb_pos]; |
if (v->skip_is_raw) |
skipped = get_bits1(gb); |
else |
skipped = v->s.mbskip_table[mb_pos]; |
|
if (!fourmv) { /* 1MV mode */ |
if (!skipped) { |
GET_MVDATA(dmv_x, dmv_y); |
|
if (s->mb_intra) { |
s->current_picture.motion_val[1][s->block_index[0]][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0]][1] = 0; |
} |
s->current_picture.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16; |
vc1_pred_mv(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
|
/* FIXME Set DC val for inter block ? */ |
if (s->mb_intra && !mb_has_coeffs) { |
GET_MQUANT(); |
s->ac_pred = get_bits1(gb); |
cbp = 0; |
} else if (mb_has_coeffs) { |
if (s->mb_intra) |
s->ac_pred = get_bits1(gb); |
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
GET_MQUANT(); |
} else { |
mquant = v->pq; |
cbp = 0; |
} |
s->current_picture.qscale_table[mb_pos] = mquant; |
|
if (!v->ttmbf && !s->mb_intra && mb_has_coeffs) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, |
VC1_TTMB_VLC_BITS, 2); |
if (!s->mb_intra) vc1_mc_1mv(v, 0); |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
if (s->mb_intra) { |
/* check if prediction blocks A and C are available */ |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[i][j] <<= 1; |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
if (v->pq >= 9 && v->overlap) { |
if (v->c_avail) |
v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
if (v->a_avail) |
v->vc1dsp.vc1_v_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
} |
block_cbp |= 0xF << (i << 2); |
block_intra |= 1 << i; |
} else if (val) { |
pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, |
s->dest[dst_idx] + off, (i & 4) ? s->uvlinesize : s->linesize, |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), &block_tt); |
block_cbp |= pat << (i << 2); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
} else { // skipped |
s->mb_intra = 0; |
for (i = 0; i < 6; i++) { |
v->mb_type[0][s->block_index[i]] = 0; |
s->dc_val[0][s->block_index[i]] = 0; |
} |
s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP; |
s->current_picture.qscale_table[mb_pos] = 0; |
vc1_pred_mv(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
vc1_mc_1mv(v, 0); |
} |
} else { // 4MV mode |
if (!skipped /* unskipped MB */) { |
int intra_count = 0, coded_inter = 0; |
int is_intra[6], is_coded[6]; |
/* Get CBPCY */ |
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
for (i = 0; i < 6; i++) { |
val = ((cbp >> (5 - i)) & 1); |
s->dc_val[0][s->block_index[i]] = 0; |
s->mb_intra = 0; |
if (i < 4) { |
dmv_x = dmv_y = 0; |
s->mb_intra = 0; |
mb_has_coeffs = 0; |
if (val) { |
GET_MVDATA(dmv_x, dmv_y); |
} |
vc1_pred_mv(v, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
if (!s->mb_intra) |
vc1_mc_4mv_luma(v, i, 0, 0); |
intra_count += s->mb_intra; |
is_intra[i] = s->mb_intra; |
is_coded[i] = mb_has_coeffs; |
} |
if (i & 4) { |
is_intra[i] = (intra_count >= 3); |
is_coded[i] = val; |
} |
if (i == 4) |
vc1_mc_4mv_chroma(v, 0); |
v->mb_type[0][s->block_index[i]] = is_intra[i]; |
if (!coded_inter) |
coded_inter = !is_intra[i] & is_coded[i]; |
} |
// if there are no coded blocks then don't do anything more |
dst_idx = 0; |
if (!intra_count && !coded_inter) |
goto end; |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
/* test if block is intra and has pred */ |
{ |
int intrapred = 0; |
for (i = 0; i < 6; i++) |
if (is_intra[i]) { |
if (((!s->first_slice_line || (i == 2 || i == 3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]]) |
|| ((s->mb_x || (i == 1 || i == 3)) && v->mb_type[0][s->block_index[i] - 1])) { |
intrapred = 1; |
break; |
} |
} |
if (intrapred) |
s->ac_pred = get_bits1(gb); |
else |
s->ac_pred = 0; |
} |
if (!v->ttmbf && coded_inter) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
for (i = 0; i < 6; i++) { |
dst_idx += i >> 2; |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
s->mb_intra = is_intra[i]; |
if (is_intra[i]) { |
/* check if prediction blocks A and C are available */ |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[i][j] <<= 1; |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : s->linesize); |
if (v->pq >= 9 && v->overlap) { |
if (v->c_avail) |
v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
if (v->a_avail) |
v->vc1dsp.vc1_v_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
} |
block_cbp |= 0xF << (i << 2); |
block_intra |= 1 << i; |
} else if (is_coded[i]) { |
pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : s->linesize, |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), |
&block_tt); |
block_cbp |= pat << (i << 2); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
} else { // skipped MB |
s->mb_intra = 0; |
s->current_picture.qscale_table[mb_pos] = 0; |
for (i = 0; i < 6; i++) { |
v->mb_type[0][s->block_index[i]] = 0; |
s->dc_val[0][s->block_index[i]] = 0; |
} |
for (i = 0; i < 4; i++) { |
vc1_pred_mv(v, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
vc1_mc_4mv_luma(v, i, 0, 0); |
} |
vc1_mc_4mv_chroma(v, 0); |
s->current_picture.qscale_table[mb_pos] = 0; |
} |
} |
end: |
v->cbp[s->mb_x] = block_cbp; |
v->ttblk[s->mb_x] = block_tt; |
v->is_intra[s->mb_x] = block_intra; |
|
return 0; |
} |
|
/* Decode one macroblock in an interlaced frame p picture */ |
|
static int vc1_decode_p_mb_intfr(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp = 0; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
|
int mb_has_coeffs = 1; /* last_flag */ |
int dmv_x, dmv_y; /* Differential MV components */ |
int val; /* temp value */ |
int first_block = 1; |
int dst_idx, off; |
int skipped, fourmv = 0, twomv = 0; |
int block_cbp = 0, pat, block_tt = 0; |
int idx_mbmode = 0, mvbp; |
int stride_y, fieldtx; |
|
mquant = v->pq; /* Lossy initialization */ |
|
if (v->skip_is_raw) |
skipped = get_bits1(gb); |
else |
skipped = v->s.mbskip_table[mb_pos]; |
if (!skipped) { |
if (v->fourmvswitch) |
idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_INTFR_4MV_MBMODE_VLC_BITS, 2); // try getting this done |
else |
idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 2); // in a single line |
switch (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0]) { |
/* store the motion vector type in a flag (useful later) */ |
case MV_PMODE_INTFR_4MV: |
fourmv = 1; |
v->blk_mv_type[s->block_index[0]] = 0; |
v->blk_mv_type[s->block_index[1]] = 0; |
v->blk_mv_type[s->block_index[2]] = 0; |
v->blk_mv_type[s->block_index[3]] = 0; |
break; |
case MV_PMODE_INTFR_4MV_FIELD: |
fourmv = 1; |
v->blk_mv_type[s->block_index[0]] = 1; |
v->blk_mv_type[s->block_index[1]] = 1; |
v->blk_mv_type[s->block_index[2]] = 1; |
v->blk_mv_type[s->block_index[3]] = 1; |
break; |
case MV_PMODE_INTFR_2MV_FIELD: |
twomv = 1; |
v->blk_mv_type[s->block_index[0]] = 1; |
v->blk_mv_type[s->block_index[1]] = 1; |
v->blk_mv_type[s->block_index[2]] = 1; |
v->blk_mv_type[s->block_index[3]] = 1; |
break; |
case MV_PMODE_INTFR_1MV: |
v->blk_mv_type[s->block_index[0]] = 0; |
v->blk_mv_type[s->block_index[1]] = 0; |
v->blk_mv_type[s->block_index[2]] = 0; |
v->blk_mv_type[s->block_index[3]] = 0; |
break; |
} |
if (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_INTRA) { // intra MB |
for (i = 0; i < 4; i++) { |
s->current_picture.motion_val[1][s->block_index[i]][0] = 0; |
s->current_picture.motion_val[1][s->block_index[i]][1] = 0; |
} |
s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; |
s->mb_intra = v->is_intra[s->mb_x] = 1; |
for (i = 0; i < 6; i++) |
v->mb_type[0][s->block_index[i]] = 1; |
fieldtx = v->fieldtx_plane[mb_pos] = get_bits1(gb); |
mb_has_coeffs = get_bits1(gb); |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
v->s.ac_pred = v->acpred_plane[mb_pos] = get_bits1(gb); |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
/* Set DC scale - y and c use the same (not sure if necessary here) */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (i < 4) { |
stride_y = s->linesize << fieldtx; |
off = (fieldtx) ? ((i & 1) * 8) + ((i & 2) >> 1) * s->linesize : (i & 1) * 8 + 4 * (i & 2) * s->linesize; |
} else { |
stride_y = s->uvlinesize; |
off = 0; |
} |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, stride_y); |
//TODO: loop filter |
} |
|
} else { // inter MB |
mb_has_coeffs = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][3]; |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
if (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_2MV_FIELD) { |
v->twomvbp = get_vlc2(gb, v->twomvbp_vlc->table, VC1_2MV_BLOCK_PATTERN_VLC_BITS, 1); |
} else { |
if ((ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_4MV) |
|| (ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][0] == MV_PMODE_INTFR_4MV_FIELD)) { |
v->fourmvbp = get_vlc2(gb, v->fourmvbp_vlc->table, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 1); |
} |
} |
s->mb_intra = v->is_intra[s->mb_x] = 0; |
for (i = 0; i < 6; i++) |
v->mb_type[0][s->block_index[i]] = 0; |
fieldtx = v->fieldtx_plane[mb_pos] = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][1]; |
/* for all motion vector read MVDATA and motion compensate each block */ |
dst_idx = 0; |
if (fourmv) { |
mvbp = v->fourmvbp; |
for (i = 0; i < 6; i++) { |
if (i < 4) { |
dmv_x = dmv_y = 0; |
val = ((mvbp >> (3 - i)) & 1); |
if (val) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
} |
vc1_pred_mv_intfr(v, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_4mv_luma(v, i, 0, 0); |
} else if (i == 4) { |
vc1_mc_4mv_chroma4(v, 0, 0, 0); |
} |
} |
} else if (twomv) { |
mvbp = v->twomvbp; |
dmv_x = dmv_y = 0; |
if (mvbp & 2) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
} |
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_4mv_luma(v, 0, 0, 0); |
vc1_mc_4mv_luma(v, 1, 0, 0); |
dmv_x = dmv_y = 0; |
if (mvbp & 1) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
} |
vc1_pred_mv_intfr(v, 2, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_4mv_luma(v, 2, 0, 0); |
vc1_mc_4mv_luma(v, 3, 0, 0); |
vc1_mc_4mv_chroma4(v, 0, 0, 0); |
} else { |
mvbp = ff_vc1_mbmode_intfrp[v->fourmvswitch][idx_mbmode][2]; |
dmv_x = dmv_y = 0; |
if (mvbp) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
} |
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_1mv(v, 0); |
} |
if (cbp) |
GET_MQUANT(); // p. 227 |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf && cbp) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
if (!fieldtx) |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
else |
off = (i & 4) ? 0 : ((i & 1) * 8 + ((i > 1) * s->linesize)); |
if (val) { |
pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : (s->linesize << fieldtx), |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), &block_tt); |
block_cbp |= pat << (i << 2); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
} |
} else { // skipped |
s->mb_intra = v->is_intra[s->mb_x] = 0; |
for (i = 0; i < 6; i++) { |
v->mb_type[0][s->block_index[i]] = 0; |
s->dc_val[0][s->block_index[i]] = 0; |
} |
s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP; |
s->current_picture.qscale_table[mb_pos] = 0; |
v->blk_mv_type[s->block_index[0]] = 0; |
v->blk_mv_type[s->block_index[1]] = 0; |
v->blk_mv_type[s->block_index[2]] = 0; |
v->blk_mv_type[s->block_index[3]] = 0; |
vc1_pred_mv_intfr(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_1mv(v, 0); |
} |
if (s->mb_x == s->mb_width - 1) |
memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0])*s->mb_stride); |
return 0; |
} |
|
static int vc1_decode_p_mb_intfi(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp = 0; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
|
int mb_has_coeffs = 1; /* last_flag */ |
int dmv_x, dmv_y; /* Differential MV components */ |
int val; /* temp values */ |
int first_block = 1; |
int dst_idx, off; |
int pred_flag = 0; |
int block_cbp = 0, pat, block_tt = 0; |
int idx_mbmode = 0; |
|
mquant = v->pq; /* Lossy initialization */ |
|
idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_IF_MBMODE_VLC_BITS, 2); |
if (idx_mbmode <= 1) { // intra MB |
s->mb_intra = v->is_intra[s->mb_x] = 1; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0; |
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_INTRA; |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
/* Set DC scale - y and c use the same (not sure if necessary here) */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
v->s.ac_pred = v->acpred_plane[mb_pos] = get_bits1(gb); |
mb_has_coeffs = idx_mbmode & 1; |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_ICBPCY_VLC_BITS, 2); |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
v->mb_type[0][s->block_index[i]] = 1; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i & 4) ? s->uvlinesize : s->linesize); |
// TODO: loop filter |
} |
} else { |
s->mb_intra = v->is_intra[s->mb_x] = 0; |
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_16x16; |
for (i = 0; i < 6; i++) v->mb_type[0][s->block_index[i]] = 0; |
if (idx_mbmode <= 5) { // 1-MV |
dmv_x = dmv_y = pred_flag = 0; |
if (idx_mbmode & 1) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, &pred_flag); |
} |
vc1_pred_mv(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], pred_flag, 0); |
vc1_mc_1mv(v, 0); |
mb_has_coeffs = !(idx_mbmode & 2); |
} else { // 4-MV |
v->fourmvbp = get_vlc2(gb, v->fourmvbp_vlc->table, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 1); |
for (i = 0; i < 6; i++) { |
if (i < 4) { |
dmv_x = dmv_y = pred_flag = 0; |
val = ((v->fourmvbp >> (3 - i)) & 1); |
if (val) { |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, &pred_flag); |
} |
vc1_pred_mv(v, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0], pred_flag, 0); |
vc1_mc_4mv_luma(v, i, 0, 0); |
} else if (i == 4) |
vc1_mc_4mv_chroma(v, 0); |
} |
mb_has_coeffs = idx_mbmode & 1; |
} |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
if (cbp) { |
GET_MQUANT(); |
} |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf && cbp) { |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
} |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
off = (i & 4) ? 0 : (i & 1) * 8 + (i & 2) * 4 * s->linesize; |
if (val) { |
pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : s->linesize, |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), |
&block_tt); |
block_cbp |= pat << (i << 2); |
if (!v->ttmbf && ttmb < 8) ttmb = -1; |
first_block = 0; |
} |
} |
} |
if (s->mb_x == s->mb_width - 1) |
memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0]) * s->mb_stride); |
return 0; |
} |
|
/** Decode one B-frame MB (in Main profile) |
*/ |
static void vc1_decode_b_mb(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i, j; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp = 0; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
int mb_has_coeffs = 0; /* last_flag */ |
int index, index1; /* LUT indexes */ |
int val, sign; /* temp values */ |
int first_block = 1; |
int dst_idx, off; |
int skipped, direct; |
int dmv_x[2], dmv_y[2]; |
int bmvtype = BMV_TYPE_BACKWARD; |
|
mquant = v->pq; /* lossy initialization */ |
s->mb_intra = 0; |
|
if (v->dmb_is_raw) |
direct = get_bits1(gb); |
else |
direct = v->direct_mb_plane[mb_pos]; |
if (v->skip_is_raw) |
skipped = get_bits1(gb); |
else |
skipped = v->s.mbskip_table[mb_pos]; |
|
dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0; |
for (i = 0; i < 6; i++) { |
v->mb_type[0][s->block_index[i]] = 0; |
s->dc_val[0][s->block_index[i]] = 0; |
} |
s->current_picture.qscale_table[mb_pos] = 0; |
|
if (!direct) { |
if (!skipped) { |
GET_MVDATA(dmv_x[0], dmv_y[0]); |
dmv_x[1] = dmv_x[0]; |
dmv_y[1] = dmv_y[0]; |
} |
if (skipped || !s->mb_intra) { |
bmvtype = decode012(gb); |
switch (bmvtype) { |
case 0: |
bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD; |
break; |
case 1: |
bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD; |
break; |
case 2: |
bmvtype = BMV_TYPE_INTERPOLATED; |
dmv_x[0] = dmv_y[0] = 0; |
} |
} |
} |
for (i = 0; i < 6; i++) |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
|
if (skipped) { |
if (direct) |
bmvtype = BMV_TYPE_INTERPOLATED; |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); |
return; |
} |
if (direct) { |
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
GET_MQUANT(); |
s->mb_intra = 0; |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0; |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); |
} else { |
if (!mb_has_coeffs && !s->mb_intra) { |
/* no coded blocks - effectively skipped */ |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); |
return; |
} |
if (s->mb_intra && !mb_has_coeffs) { |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
s->ac_pred = get_bits1(gb); |
cbp = 0; |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
} else { |
if (bmvtype == BMV_TYPE_INTERPOLATED) { |
GET_MVDATA(dmv_x[0], dmv_y[0]); |
if (!mb_has_coeffs) { |
/* interpolated skipped block */ |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); |
return; |
} |
} |
vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); |
if (!s->mb_intra) { |
vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); |
} |
if (s->mb_intra) |
s->ac_pred = get_bits1(gb); |
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf && !s->mb_intra && mb_has_coeffs) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
} |
} |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
if (s->mb_intra) { |
/* check if prediction blocks A and C are available */ |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[i][j] <<= 1; |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize); |
} else if (val) { |
vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : s->linesize, |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), NULL); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
} |
|
/** Decode one B-frame MB (in interlaced field B picture) |
*/ |
static void vc1_decode_b_mb_intfi(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i, j; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp = 0; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
int mb_has_coeffs = 0; /* last_flag */ |
int val; /* temp value */ |
int first_block = 1; |
int dst_idx, off; |
int fwd; |
int dmv_x[2], dmv_y[2], pred_flag[2]; |
int bmvtype = BMV_TYPE_BACKWARD; |
int idx_mbmode; |
|
mquant = v->pq; /* Lossy initialization */ |
s->mb_intra = 0; |
|
idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_IF_MBMODE_VLC_BITS, 2); |
if (idx_mbmode <= 1) { // intra MB |
s->mb_intra = v->is_intra[s->mb_x] = 1; |
s->current_picture.motion_val[1][s->block_index[0]][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0]][1] = 0; |
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_INTRA; |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
/* Set DC scale - y and c use the same (not sure if necessary here) */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
v->s.ac_pred = v->acpred_plane[mb_pos] = get_bits1(gb); |
mb_has_coeffs = idx_mbmode & 1; |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_ICBPCY_VLC_BITS, 2); |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if ((i>3) && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[i][j] <<= 1; |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i & 4) ? s->uvlinesize : s->linesize); |
// TODO: yet to perform loop filter |
} |
} else { |
s->mb_intra = v->is_intra[s->mb_x] = 0; |
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_16x16; |
for (i = 0; i < 6; i++) v->mb_type[0][s->block_index[i]] = 0; |
if (v->fmb_is_raw) |
fwd = v->forward_mb_plane[mb_pos] = get_bits1(gb); |
else |
fwd = v->forward_mb_plane[mb_pos]; |
if (idx_mbmode <= 5) { // 1-MV |
int interpmvp = 0; |
dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0; |
pred_flag[0] = pred_flag[1] = 0; |
if (fwd) |
bmvtype = BMV_TYPE_FORWARD; |
else { |
bmvtype = decode012(gb); |
switch (bmvtype) { |
case 0: |
bmvtype = BMV_TYPE_BACKWARD; |
break; |
case 1: |
bmvtype = BMV_TYPE_DIRECT; |
break; |
case 2: |
bmvtype = BMV_TYPE_INTERPOLATED; |
interpmvp = get_bits1(gb); |
} |
} |
v->bmvtype = bmvtype; |
if (bmvtype != BMV_TYPE_DIRECT && idx_mbmode & 1) { |
get_mvdata_interlaced(v, &dmv_x[bmvtype == BMV_TYPE_BACKWARD], &dmv_y[bmvtype == BMV_TYPE_BACKWARD], &pred_flag[bmvtype == BMV_TYPE_BACKWARD]); |
} |
if (interpmvp) { |
get_mvdata_interlaced(v, &dmv_x[1], &dmv_y[1], &pred_flag[1]); |
} |
if (bmvtype == BMV_TYPE_DIRECT) { |
dmv_x[0] = dmv_y[0] = pred_flag[0] = 0; |
dmv_x[1] = dmv_y[1] = pred_flag[0] = 0; |
} |
vc1_pred_b_mv_intfi(v, 0, dmv_x, dmv_y, 1, pred_flag); |
vc1_b_mc(v, dmv_x, dmv_y, (bmvtype == BMV_TYPE_DIRECT), bmvtype); |
mb_has_coeffs = !(idx_mbmode & 2); |
} else { // 4-MV |
if (fwd) |
bmvtype = BMV_TYPE_FORWARD; |
v->bmvtype = bmvtype; |
v->fourmvbp = get_vlc2(gb, v->fourmvbp_vlc->table, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 1); |
for (i = 0; i < 6; i++) { |
if (i < 4) { |
dmv_x[0] = dmv_y[0] = pred_flag[0] = 0; |
dmv_x[1] = dmv_y[1] = pred_flag[1] = 0; |
val = ((v->fourmvbp >> (3 - i)) & 1); |
if (val) { |
get_mvdata_interlaced(v, &dmv_x[bmvtype == BMV_TYPE_BACKWARD], |
&dmv_y[bmvtype == BMV_TYPE_BACKWARD], |
&pred_flag[bmvtype == BMV_TYPE_BACKWARD]); |
} |
vc1_pred_b_mv_intfi(v, i, dmv_x, dmv_y, 0, pred_flag); |
vc1_mc_4mv_luma(v, i, bmvtype == BMV_TYPE_BACKWARD, 0); |
} else if (i == 4) |
vc1_mc_4mv_chroma(v, bmvtype == BMV_TYPE_BACKWARD); |
} |
mb_has_coeffs = idx_mbmode & 1; |
} |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
if (cbp) { |
GET_MQUANT(); |
} |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf && cbp) { |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
} |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
off = (i & 4) ? 0 : (i & 1) * 8 + (i & 2) * 4 * s->linesize; |
if (val) { |
vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : s->linesize, |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), NULL); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
} |
} |
|
/** Decode one B-frame MB (in interlaced frame B picture) |
*/ |
static int vc1_decode_b_mb_intfr(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
GetBitContext *gb = &s->gb; |
int i, j; |
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
int cbp = 0; /* cbp decoding stuff */ |
int mqdiff, mquant; /* MB quantization */ |
int ttmb = v->ttfrm; /* MB Transform type */ |
int mvsw = 0; /* motion vector switch */ |
int mb_has_coeffs = 1; /* last_flag */ |
int dmv_x, dmv_y; /* Differential MV components */ |
int val; /* temp value */ |
int first_block = 1; |
int dst_idx, off; |
int skipped, direct, twomv = 0; |
int block_cbp = 0, pat, block_tt = 0; |
int idx_mbmode = 0, mvbp; |
int stride_y, fieldtx; |
int bmvtype = BMV_TYPE_BACKWARD; |
int dir, dir2; |
|
mquant = v->pq; /* Lossy initialization */ |
s->mb_intra = 0; |
if (v->skip_is_raw) |
skipped = get_bits1(gb); |
else |
skipped = v->s.mbskip_table[mb_pos]; |
|
if (!skipped) { |
idx_mbmode = get_vlc2(gb, v->mbmode_vlc->table, VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 2); |
if (ff_vc1_mbmode_intfrp[0][idx_mbmode][0] == MV_PMODE_INTFR_2MV_FIELD) { |
twomv = 1; |
v->blk_mv_type[s->block_index[0]] = 1; |
v->blk_mv_type[s->block_index[1]] = 1; |
v->blk_mv_type[s->block_index[2]] = 1; |
v->blk_mv_type[s->block_index[3]] = 1; |
} else { |
v->blk_mv_type[s->block_index[0]] = 0; |
v->blk_mv_type[s->block_index[1]] = 0; |
v->blk_mv_type[s->block_index[2]] = 0; |
v->blk_mv_type[s->block_index[3]] = 0; |
} |
} |
|
if (v->dmb_is_raw) |
direct = get_bits1(gb); |
else |
direct = v->direct_mb_plane[mb_pos]; |
|
if (direct) { |
s->mv[0][0][0] = s->current_picture.motion_val[0][s->block_index[0]][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0]][0], v->bfraction, 0, s->quarter_sample); |
s->mv[0][0][1] = s->current_picture.motion_val[0][s->block_index[0]][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0]][1], v->bfraction, 0, s->quarter_sample); |
s->mv[1][0][0] = s->current_picture.motion_val[1][s->block_index[0]][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0]][0], v->bfraction, 1, s->quarter_sample); |
s->mv[1][0][1] = s->current_picture.motion_val[1][s->block_index[0]][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0]][1], v->bfraction, 1, s->quarter_sample); |
|
if (twomv) { |
s->mv[0][2][0] = s->current_picture.motion_val[0][s->block_index[2]][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[2]][0], v->bfraction, 0, s->quarter_sample); |
s->mv[0][2][1] = s->current_picture.motion_val[0][s->block_index[2]][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[2]][1], v->bfraction, 0, s->quarter_sample); |
s->mv[1][2][0] = s->current_picture.motion_val[1][s->block_index[2]][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[2]][0], v->bfraction, 1, s->quarter_sample); |
s->mv[1][2][1] = s->current_picture.motion_val[1][s->block_index[2]][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[2]][1], v->bfraction, 1, s->quarter_sample); |
|
for (i = 1; i < 4; i += 2) { |
s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0] = s->mv[0][i-1][0]; |
s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1] = s->mv[0][i-1][1]; |
s->mv[1][i][0] = s->current_picture.motion_val[1][s->block_index[i]][0] = s->mv[1][i-1][0]; |
s->mv[1][i][1] = s->current_picture.motion_val[1][s->block_index[i]][1] = s->mv[1][i-1][1]; |
} |
} else { |
for (i = 1; i < 4; i++) { |
s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0] = s->mv[0][0][0]; |
s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1] = s->mv[0][0][1]; |
s->mv[1][i][0] = s->current_picture.motion_val[1][s->block_index[i]][0] = s->mv[1][0][0]; |
s->mv[1][i][1] = s->current_picture.motion_val[1][s->block_index[i]][1] = s->mv[1][0][1]; |
} |
} |
} |
|
if (ff_vc1_mbmode_intfrp[0][idx_mbmode][0] == MV_PMODE_INTFR_INTRA) { // intra MB |
for (i = 0; i < 4; i++) { |
s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0] = 0; |
s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1] = 0; |
s->mv[1][i][0] = s->current_picture.motion_val[1][s->block_index[i]][0] = 0; |
s->mv[1][i][1] = s->current_picture.motion_val[1][s->block_index[i]][1] = 0; |
} |
s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; |
s->mb_intra = v->is_intra[s->mb_x] = 1; |
for (i = 0; i < 6; i++) |
v->mb_type[0][s->block_index[i]] = 1; |
fieldtx = v->fieldtx_plane[mb_pos] = get_bits1(gb); |
mb_has_coeffs = get_bits1(gb); |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
v->s.ac_pred = v->acpred_plane[mb_pos] = get_bits1(gb); |
GET_MQUANT(); |
s->current_picture.qscale_table[mb_pos] = mquant; |
/* Set DC scale - y and c use the same (not sure if necessary here) */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
dst_idx = 0; |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
v->mb_type[0][s->block_index[i]] = s->mb_intra; |
v->a_avail = v->c_avail = 0; |
if (i == 2 || i == 3 || !s->first_slice_line) |
v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; |
if (i == 1 || i == 3 || s->mb_x) |
v->c_avail = v->mb_type[0][s->block_index[i] - 1]; |
|
vc1_decode_intra_block(v, s->block[i], i, val, mquant, |
(i & 4) ? v->codingset2 : v->codingset); |
if (i > 3 && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]); |
if (i < 4) { |
stride_y = s->linesize << fieldtx; |
off = (fieldtx) ? ((i & 1) * 8) + ((i & 2) >> 1) * s->linesize : (i & 1) * 8 + 4 * (i & 2) * s->linesize; |
} else { |
stride_y = s->uvlinesize; |
off = 0; |
} |
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, stride_y); |
} |
} else { |
s->mb_intra = v->is_intra[s->mb_x] = 0; |
if (!direct) { |
if (skipped || !s->mb_intra) { |
bmvtype = decode012(gb); |
switch (bmvtype) { |
case 0: |
bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD; |
break; |
case 1: |
bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD; |
break; |
case 2: |
bmvtype = BMV_TYPE_INTERPOLATED; |
} |
} |
|
if (twomv && bmvtype != BMV_TYPE_INTERPOLATED) |
mvsw = get_bits1(gb); |
} |
|
if (!skipped) { // inter MB |
mb_has_coeffs = ff_vc1_mbmode_intfrp[0][idx_mbmode][3]; |
if (mb_has_coeffs) |
cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); |
if (!direct) { |
if (bmvtype == BMV_TYPE_INTERPOLATED && twomv) { |
v->fourmvbp = get_vlc2(gb, v->fourmvbp_vlc->table, VC1_4MV_BLOCK_PATTERN_VLC_BITS, 1); |
} else if (bmvtype == BMV_TYPE_INTERPOLATED || twomv) { |
v->twomvbp = get_vlc2(gb, v->twomvbp_vlc->table, VC1_2MV_BLOCK_PATTERN_VLC_BITS, 1); |
} |
} |
|
for (i = 0; i < 6; i++) |
v->mb_type[0][s->block_index[i]] = 0; |
fieldtx = v->fieldtx_plane[mb_pos] = ff_vc1_mbmode_intfrp[0][idx_mbmode][1]; |
/* for all motion vector read MVDATA and motion compensate each block */ |
dst_idx = 0; |
if (direct) { |
if (twomv) { |
for (i = 0; i < 4; i++) { |
vc1_mc_4mv_luma(v, i, 0, 0); |
vc1_mc_4mv_luma(v, i, 1, 1); |
} |
vc1_mc_4mv_chroma4(v, 0, 0, 0); |
vc1_mc_4mv_chroma4(v, 1, 1, 1); |
} else { |
vc1_mc_1mv(v, 0); |
vc1_interp_mc(v); |
} |
} else if (twomv && bmvtype == BMV_TYPE_INTERPOLATED) { |
mvbp = v->fourmvbp; |
for (i = 0; i < 4; i++) { |
dir = i==1 || i==3; |
dmv_x = dmv_y = 0; |
val = ((mvbp >> (3 - i)) & 1); |
if (val) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
j = i > 1 ? 2 : 0; |
vc1_pred_mv_intfr(v, j, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], dir); |
vc1_mc_4mv_luma(v, j, dir, dir); |
vc1_mc_4mv_luma(v, j+1, dir, dir); |
} |
|
vc1_mc_4mv_chroma4(v, 0, 0, 0); |
vc1_mc_4mv_chroma4(v, 1, 1, 1); |
} else if (bmvtype == BMV_TYPE_INTERPOLATED) { |
mvbp = v->twomvbp; |
dmv_x = dmv_y = 0; |
if (mvbp & 2) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
|
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_mc_1mv(v, 0); |
|
dmv_x = dmv_y = 0; |
if (mvbp & 1) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
|
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], 1); |
vc1_interp_mc(v); |
} else if (twomv) { |
dir = bmvtype == BMV_TYPE_BACKWARD; |
dir2 = dir; |
if (mvsw) |
dir2 = !dir; |
mvbp = v->twomvbp; |
dmv_x = dmv_y = 0; |
if (mvbp & 2) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], dir); |
|
dmv_x = dmv_y = 0; |
if (mvbp & 1) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
vc1_pred_mv_intfr(v, 2, dmv_x, dmv_y, 2, v->range_x, v->range_y, v->mb_type[0], dir2); |
|
if (mvsw) { |
for (i = 0; i < 2; i++) { |
s->mv[dir][i+2][0] = s->mv[dir][i][0] = s->current_picture.motion_val[dir][s->block_index[i+2]][0] = s->current_picture.motion_val[dir][s->block_index[i]][0]; |
s->mv[dir][i+2][1] = s->mv[dir][i][1] = s->current_picture.motion_val[dir][s->block_index[i+2]][1] = s->current_picture.motion_val[dir][s->block_index[i]][1]; |
s->mv[dir2][i+2][0] = s->mv[dir2][i][0] = s->current_picture.motion_val[dir2][s->block_index[i]][0] = s->current_picture.motion_val[dir2][s->block_index[i+2]][0]; |
s->mv[dir2][i+2][1] = s->mv[dir2][i][1] = s->current_picture.motion_val[dir2][s->block_index[i]][1] = s->current_picture.motion_val[dir2][s->block_index[i+2]][1]; |
} |
} else { |
vc1_pred_mv_intfr(v, 0, 0, 0, 2, v->range_x, v->range_y, v->mb_type[0], !dir); |
vc1_pred_mv_intfr(v, 2, 0, 0, 2, v->range_x, v->range_y, v->mb_type[0], !dir); |
} |
|
vc1_mc_4mv_luma(v, 0, dir, 0); |
vc1_mc_4mv_luma(v, 1, dir, 0); |
vc1_mc_4mv_luma(v, 2, dir2, 0); |
vc1_mc_4mv_luma(v, 3, dir2, 0); |
vc1_mc_4mv_chroma4(v, dir, dir2, 0); |
} else { |
dir = bmvtype == BMV_TYPE_BACKWARD; |
|
mvbp = ff_vc1_mbmode_intfrp[0][idx_mbmode][2]; |
dmv_x = dmv_y = 0; |
if (mvbp) |
get_mvdata_interlaced(v, &dmv_x, &dmv_y, 0); |
|
vc1_pred_mv_intfr(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0], dir); |
v->blk_mv_type[s->block_index[0]] = 1; |
v->blk_mv_type[s->block_index[1]] = 1; |
v->blk_mv_type[s->block_index[2]] = 1; |
v->blk_mv_type[s->block_index[3]] = 1; |
vc1_pred_mv_intfr(v, 0, 0, 0, 2, v->range_x, v->range_y, 0, !dir); |
for (i = 0; i < 2; i++) { |
s->mv[!dir][i+2][0] = s->mv[!dir][i][0] = s->current_picture.motion_val[!dir][s->block_index[i+2]][0] = s->current_picture.motion_val[!dir][s->block_index[i]][0]; |
s->mv[!dir][i+2][1] = s->mv[!dir][i][1] = s->current_picture.motion_val[!dir][s->block_index[i+2]][1] = s->current_picture.motion_val[!dir][s->block_index[i]][1]; |
} |
vc1_mc_1mv(v, dir); |
} |
|
if (cbp) |
GET_MQUANT(); // p. 227 |
s->current_picture.qscale_table[mb_pos] = mquant; |
if (!v->ttmbf && cbp) |
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2); |
for (i = 0; i < 6; i++) { |
s->dc_val[0][s->block_index[i]] = 0; |
dst_idx += i >> 2; |
val = ((cbp >> (5 - i)) & 1); |
if (!fieldtx) |
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); |
else |
off = (i & 4) ? 0 : ((i & 1) * 8 + ((i > 1) * s->linesize)); |
if (val) { |
pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, |
first_block, s->dest[dst_idx] + off, |
(i & 4) ? s->uvlinesize : (s->linesize << fieldtx), |
(i & 4) && (s->flags & CODEC_FLAG_GRAY), &block_tt); |
block_cbp |= pat << (i << 2); |
if (!v->ttmbf && ttmb < 8) |
ttmb = -1; |
first_block = 0; |
} |
} |
|
} else { // skipped |
dir = 0; |
for (i = 0; i < 6; i++) { |
v->mb_type[0][s->block_index[i]] = 0; |
s->dc_val[0][s->block_index[i]] = 0; |
} |
s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP; |
s->current_picture.qscale_table[mb_pos] = 0; |
v->blk_mv_type[s->block_index[0]] = 0; |
v->blk_mv_type[s->block_index[1]] = 0; |
v->blk_mv_type[s->block_index[2]] = 0; |
v->blk_mv_type[s->block_index[3]] = 0; |
|
if (!direct) { |
if (bmvtype == BMV_TYPE_INTERPOLATED) { |
vc1_pred_mv_intfr(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], 0); |
vc1_pred_mv_intfr(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], 1); |
} else { |
dir = bmvtype == BMV_TYPE_BACKWARD; |
vc1_pred_mv_intfr(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0], dir); |
if (mvsw) { |
int dir2 = dir; |
if (mvsw) |
dir2 = !dir; |
for (i = 0; i < 2; i++) { |
s->mv[dir][i+2][0] = s->mv[dir][i][0] = s->current_picture.motion_val[dir][s->block_index[i+2]][0] = s->current_picture.motion_val[dir][s->block_index[i]][0]; |
s->mv[dir][i+2][1] = s->mv[dir][i][1] = s->current_picture.motion_val[dir][s->block_index[i+2]][1] = s->current_picture.motion_val[dir][s->block_index[i]][1]; |
s->mv[dir2][i+2][0] = s->mv[dir2][i][0] = s->current_picture.motion_val[dir2][s->block_index[i]][0] = s->current_picture.motion_val[dir2][s->block_index[i+2]][0]; |
s->mv[dir2][i+2][1] = s->mv[dir2][i][1] = s->current_picture.motion_val[dir2][s->block_index[i]][1] = s->current_picture.motion_val[dir2][s->block_index[i+2]][1]; |
} |
} else { |
v->blk_mv_type[s->block_index[0]] = 1; |
v->blk_mv_type[s->block_index[1]] = 1; |
v->blk_mv_type[s->block_index[2]] = 1; |
v->blk_mv_type[s->block_index[3]] = 1; |
vc1_pred_mv_intfr(v, 0, 0, 0, 2, v->range_x, v->range_y, 0, !dir); |
for (i = 0; i < 2; i++) { |
s->mv[!dir][i+2][0] = s->mv[!dir][i][0] = s->current_picture.motion_val[!dir][s->block_index[i+2]][0] = s->current_picture.motion_val[!dir][s->block_index[i]][0]; |
s->mv[!dir][i+2][1] = s->mv[!dir][i][1] = s->current_picture.motion_val[!dir][s->block_index[i+2]][1] = s->current_picture.motion_val[!dir][s->block_index[i]][1]; |
} |
} |
} |
} |
|
vc1_mc_1mv(v, dir); |
if (direct || bmvtype == BMV_TYPE_INTERPOLATED) { |
vc1_interp_mc(v); |
} |
} |
} |
if (s->mb_x == s->mb_width - 1) |
memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0]) * s->mb_stride); |
v->cbp[s->mb_x] = block_cbp; |
v->ttblk[s->mb_x] = block_tt; |
return 0; |
} |
|
/** Decode blocks of I-frame |
*/ |
static void vc1_decode_i_blocks(VC1Context *v) |
{ |
int k, j; |
MpegEncContext *s = &v->s; |
int cbp, val; |
uint8_t *coded_val; |
int mb_pos; |
|
/* select codingmode used for VLC tables selection */ |
switch (v->y_ac_table_index) { |
case 0: |
v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; |
break; |
case 1: |
v->codingset = CS_HIGH_MOT_INTRA; |
break; |
case 2: |
v->codingset = CS_MID_RATE_INTRA; |
break; |
} |
|
switch (v->c_ac_table_index) { |
case 0: |
v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; |
break; |
case 1: |
v->codingset2 = CS_HIGH_MOT_INTER; |
break; |
case 2: |
v->codingset2 = CS_MID_RATE_INTER; |
break; |
} |
|
/* Set DC scale - y and c use the same */ |
s->y_dc_scale = s->y_dc_scale_table[v->pq]; |
s->c_dc_scale = s->c_dc_scale_table[v->pq]; |
|
//do frame decode |
s->mb_x = s->mb_y = 0; |
s->mb_intra = 1; |
s->first_slice_line = 1; |
for (s->mb_y = 0; s->mb_y < s->end_mb_y; s->mb_y++) { |
s->mb_x = 0; |
init_block_index(v); |
for (; s->mb_x < v->end_mb_x; s->mb_x++) { |
uint8_t *dst[6]; |
ff_update_block_index(s); |
dst[0] = s->dest[0]; |
dst[1] = dst[0] + 8; |
dst[2] = s->dest[0] + s->linesize * 8; |
dst[3] = dst[2] + 8; |
dst[4] = s->dest[1]; |
dst[5] = s->dest[2]; |
s->dsp.clear_blocks(s->block[0]); |
mb_pos = s->mb_x + s->mb_y * s->mb_width; |
s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; |
s->current_picture.qscale_table[mb_pos] = v->pq; |
s->current_picture.motion_val[1][s->block_index[0]][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0]][1] = 0; |
|
// do actual MB decoding and displaying |
cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2); |
v->s.ac_pred = get_bits1(&v->s.gb); |
|
for (k = 0; k < 6; k++) { |
val = ((cbp >> (5 - k)) & 1); |
|
if (k < 4) { |
int pred = vc1_coded_block_pred(&v->s, k, &coded_val); |
val = val ^ pred; |
*coded_val = val; |
} |
cbp |= val << (5 - k); |
|
vc1_decode_i_block(v, s->block[k], k, val, (k < 4) ? v->codingset : v->codingset2); |
|
if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(s->block[k]); |
if (v->pq >= 9 && v->overlap) { |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[k][j] <<= 1; |
s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize); |
} else { |
if (v->rangeredfrm) |
for (j = 0; j < 64; j++) |
s->block[k][j] = (s->block[k][j] - 64) << 1; |
s->dsp.put_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize); |
} |
} |
|
if (v->pq >= 9 && v->overlap) { |
if (s->mb_x) { |
v->vc1dsp.vc1_h_overlap(s->dest[0], s->linesize); |
v->vc1dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize); |
if (!(s->flags & CODEC_FLAG_GRAY)) { |
v->vc1dsp.vc1_h_overlap(s->dest[1], s->uvlinesize); |
v->vc1dsp.vc1_h_overlap(s->dest[2], s->uvlinesize); |
} |
} |
v->vc1dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize); |
v->vc1dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize); |
if (!s->first_slice_line) { |
v->vc1dsp.vc1_v_overlap(s->dest[0], s->linesize); |
v->vc1dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize); |
if (!(s->flags & CODEC_FLAG_GRAY)) { |
v->vc1dsp.vc1_v_overlap(s->dest[1], s->uvlinesize); |
v->vc1dsp.vc1_v_overlap(s->dest[2], s->uvlinesize); |
} |
} |
v->vc1dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize); |
v->vc1dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize); |
} |
if (v->s.loop_filter) vc1_loop_filter_iblk(v, v->pq); |
|
if (get_bits_count(&s->gb) > v->bits) { |
ff_er_add_slice(&s->er, 0, 0, s->mb_x, s->mb_y, ER_MB_ERROR); |
av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", |
get_bits_count(&s->gb), v->bits); |
return; |
} |
} |
if (!v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, s->mb_y * 16, 16); |
else if (s->mb_y) |
ff_mpeg_draw_horiz_band(s, (s->mb_y - 1) * 16, 16); |
|
s->first_slice_line = 0; |
} |
if (v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, (s->end_mb_y - 1) * 16, 16); |
|
/* This is intentionally mb_height and not end_mb_y - unlike in advanced |
* profile, these only differ are when decoding MSS2 rectangles. */ |
ff_er_add_slice(&s->er, 0, 0, s->mb_width - 1, s->mb_height - 1, ER_MB_END); |
} |
|
/** Decode blocks of I-frame for advanced profile |
*/ |
static void vc1_decode_i_blocks_adv(VC1Context *v) |
{ |
int k; |
MpegEncContext *s = &v->s; |
int cbp, val; |
uint8_t *coded_val; |
int mb_pos; |
int mquant = v->pq; |
int mqdiff; |
GetBitContext *gb = &s->gb; |
|
/* select codingmode used for VLC tables selection */ |
switch (v->y_ac_table_index) { |
case 0: |
v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; |
break; |
case 1: |
v->codingset = CS_HIGH_MOT_INTRA; |
break; |
case 2: |
v->codingset = CS_MID_RATE_INTRA; |
break; |
} |
|
switch (v->c_ac_table_index) { |
case 0: |
v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; |
break; |
case 1: |
v->codingset2 = CS_HIGH_MOT_INTER; |
break; |
case 2: |
v->codingset2 = CS_MID_RATE_INTER; |
break; |
} |
|
// do frame decode |
s->mb_x = s->mb_y = 0; |
s->mb_intra = 1; |
s->first_slice_line = 1; |
s->mb_y = s->start_mb_y; |
if (s->start_mb_y) { |
s->mb_x = 0; |
init_block_index(v); |
memset(&s->coded_block[s->block_index[0] - s->b8_stride], 0, |
(1 + s->b8_stride) * sizeof(*s->coded_block)); |
} |
for (; s->mb_y < s->end_mb_y; s->mb_y++) { |
s->mb_x = 0; |
init_block_index(v); |
for (;s->mb_x < s->mb_width; s->mb_x++) { |
int16_t (*block)[64] = v->block[v->cur_blk_idx]; |
ff_update_block_index(s); |
s->dsp.clear_blocks(block[0]); |
mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_INTRA; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0; |
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0; |
|
// do actual MB decoding and displaying |
if (v->fieldtx_is_raw) |
v->fieldtx_plane[mb_pos] = get_bits1(&v->s.gb); |
cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2); |
if ( v->acpred_is_raw) |
v->s.ac_pred = get_bits1(&v->s.gb); |
else |
v->s.ac_pred = v->acpred_plane[mb_pos]; |
|
if (v->condover == CONDOVER_SELECT && v->overflg_is_raw) |
v->over_flags_plane[mb_pos] = get_bits1(&v->s.gb); |
|
GET_MQUANT(); |
|
s->current_picture.qscale_table[mb_pos] = mquant; |
/* Set DC scale - y and c use the same */ |
s->y_dc_scale = s->y_dc_scale_table[mquant]; |
s->c_dc_scale = s->c_dc_scale_table[mquant]; |
|
for (k = 0; k < 6; k++) { |
val = ((cbp >> (5 - k)) & 1); |
|
if (k < 4) { |
int pred = vc1_coded_block_pred(&v->s, k, &coded_val); |
val = val ^ pred; |
*coded_val = val; |
} |
cbp |= val << (5 - k); |
|
v->a_avail = !s->first_slice_line || (k == 2 || k == 3); |
v->c_avail = !!s->mb_x || (k == 1 || k == 3); |
|
vc1_decode_i_block_adv(v, block[k], k, val, |
(k < 4) ? v->codingset : v->codingset2, mquant); |
|
if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) |
continue; |
v->vc1dsp.vc1_inv_trans_8x8(block[k]); |
} |
|
vc1_smooth_overlap_filter_iblk(v); |
vc1_put_signed_blocks_clamped(v); |
if (v->s.loop_filter) vc1_loop_filter_iblk_delayed(v, v->pq); |
|
if (get_bits_count(&s->gb) > v->bits) { |
// TODO: may need modification to handle slice coding |
ff_er_add_slice(&s->er, 0, s->start_mb_y, s->mb_x, s->mb_y, ER_MB_ERROR); |
av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", |
get_bits_count(&s->gb), v->bits); |
return; |
} |
} |
if (!v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, s->mb_y * 16, 16); |
else if (s->mb_y) |
ff_mpeg_draw_horiz_band(s, (s->mb_y-1) * 16, 16); |
s->first_slice_line = 0; |
} |
|
/* raw bottom MB row */ |
s->mb_x = 0; |
init_block_index(v); |
|
for (;s->mb_x < s->mb_width; s->mb_x++) { |
ff_update_block_index(s); |
vc1_put_signed_blocks_clamped(v); |
if (v->s.loop_filter) |
vc1_loop_filter_iblk_delayed(v, v->pq); |
} |
if (v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, (s->end_mb_y-1)*16, 16); |
ff_er_add_slice(&s->er, 0, s->start_mb_y << v->field_mode, s->mb_width - 1, |
(s->end_mb_y << v->field_mode) - 1, ER_MB_END); |
} |
|
static void vc1_decode_p_blocks(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
int apply_loop_filter; |
|
/* select codingmode used for VLC tables selection */ |
switch (v->c_ac_table_index) { |
case 0: |
v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; |
break; |
case 1: |
v->codingset = CS_HIGH_MOT_INTRA; |
break; |
case 2: |
v->codingset = CS_MID_RATE_INTRA; |
break; |
} |
|
switch (v->c_ac_table_index) { |
case 0: |
v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; |
break; |
case 1: |
v->codingset2 = CS_HIGH_MOT_INTER; |
break; |
case 2: |
v->codingset2 = CS_MID_RATE_INTER; |
break; |
} |
|
apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY) && |
v->fcm == PROGRESSIVE; |
s->first_slice_line = 1; |
memset(v->cbp_base, 0, sizeof(v->cbp_base[0])*2*s->mb_stride); |
for (s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) { |
s->mb_x = 0; |
init_block_index(v); |
for (; s->mb_x < s->mb_width; s->mb_x++) { |
ff_update_block_index(s); |
|
if (v->fcm == ILACE_FIELD) |
vc1_decode_p_mb_intfi(v); |
else if (v->fcm == ILACE_FRAME) |
vc1_decode_p_mb_intfr(v); |
else vc1_decode_p_mb(v); |
if (s->mb_y != s->start_mb_y && apply_loop_filter) |
vc1_apply_p_loop_filter(v); |
if (get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) { |
// TODO: may need modification to handle slice coding |
ff_er_add_slice(&s->er, 0, s->start_mb_y, s->mb_x, s->mb_y, ER_MB_ERROR); |
av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", |
get_bits_count(&s->gb), v->bits, s->mb_x, s->mb_y); |
return; |
} |
} |
memmove(v->cbp_base, v->cbp, sizeof(v->cbp_base[0]) * s->mb_stride); |
memmove(v->ttblk_base, v->ttblk, sizeof(v->ttblk_base[0]) * s->mb_stride); |
memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0]) * s->mb_stride); |
memmove(v->luma_mv_base, v->luma_mv, sizeof(v->luma_mv_base[0]) * s->mb_stride); |
if (s->mb_y != s->start_mb_y) ff_mpeg_draw_horiz_band(s, (s->mb_y - 1) * 16, 16); |
s->first_slice_line = 0; |
} |
if (apply_loop_filter) { |
s->mb_x = 0; |
init_block_index(v); |
for (; s->mb_x < s->mb_width; s->mb_x++) { |
ff_update_block_index(s); |
vc1_apply_p_loop_filter(v); |
} |
} |
if (s->end_mb_y >= s->start_mb_y) |
ff_mpeg_draw_horiz_band(s, (s->end_mb_y - 1) * 16, 16); |
ff_er_add_slice(&s->er, 0, s->start_mb_y << v->field_mode, s->mb_width - 1, |
(s->end_mb_y << v->field_mode) - 1, ER_MB_END); |
} |
|
static void vc1_decode_b_blocks(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
|
/* select codingmode used for VLC tables selection */ |
switch (v->c_ac_table_index) { |
case 0: |
v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; |
break; |
case 1: |
v->codingset = CS_HIGH_MOT_INTRA; |
break; |
case 2: |
v->codingset = CS_MID_RATE_INTRA; |
break; |
} |
|
switch (v->c_ac_table_index) { |
case 0: |
v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; |
break; |
case 1: |
v->codingset2 = CS_HIGH_MOT_INTER; |
break; |
case 2: |
v->codingset2 = CS_MID_RATE_INTER; |
break; |
} |
|
s->first_slice_line = 1; |
for (s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) { |
s->mb_x = 0; |
init_block_index(v); |
for (; s->mb_x < s->mb_width; s->mb_x++) { |
ff_update_block_index(s); |
|
if (v->fcm == ILACE_FIELD) |
vc1_decode_b_mb_intfi(v); |
else if (v->fcm == ILACE_FRAME) |
vc1_decode_b_mb_intfr(v); |
else |
vc1_decode_b_mb(v); |
if (get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) { |
// TODO: may need modification to handle slice coding |
ff_er_add_slice(&s->er, 0, s->start_mb_y, s->mb_x, s->mb_y, ER_MB_ERROR); |
av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", |
get_bits_count(&s->gb), v->bits, s->mb_x, s->mb_y); |
return; |
} |
if (v->s.loop_filter) vc1_loop_filter_iblk(v, v->pq); |
} |
if (!v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, s->mb_y * 16, 16); |
else if (s->mb_y) |
ff_mpeg_draw_horiz_band(s, (s->mb_y - 1) * 16, 16); |
s->first_slice_line = 0; |
} |
if (v->s.loop_filter) |
ff_mpeg_draw_horiz_band(s, (s->end_mb_y - 1) * 16, 16); |
ff_er_add_slice(&s->er, 0, s->start_mb_y << v->field_mode, s->mb_width - 1, |
(s->end_mb_y << v->field_mode) - 1, ER_MB_END); |
} |
|
static void vc1_decode_skip_blocks(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
|
if (!v->s.last_picture.f.data[0]) |
return; |
|
ff_er_add_slice(&s->er, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, ER_MB_END); |
s->first_slice_line = 1; |
for (s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) { |
s->mb_x = 0; |
init_block_index(v); |
ff_update_block_index(s); |
memcpy(s->dest[0], s->last_picture.f.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16); |
memcpy(s->dest[1], s->last_picture.f.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8); |
memcpy(s->dest[2], s->last_picture.f.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8); |
ff_mpeg_draw_horiz_band(s, s->mb_y * 16, 16); |
s->first_slice_line = 0; |
} |
s->pict_type = AV_PICTURE_TYPE_P; |
} |
|
void ff_vc1_decode_blocks(VC1Context *v) |
{ |
|
v->s.esc3_level_length = 0; |
if (v->x8_type) { |
ff_intrax8_decode_picture(&v->x8, 2*v->pq + v->halfpq, v->pq * !v->pquantizer); |
} else { |
v->cur_blk_idx = 0; |
v->left_blk_idx = -1; |
v->topleft_blk_idx = 1; |
v->top_blk_idx = 2; |
switch (v->s.pict_type) { |
case AV_PICTURE_TYPE_I: |
if (v->profile == PROFILE_ADVANCED) |
vc1_decode_i_blocks_adv(v); |
else |
vc1_decode_i_blocks(v); |
break; |
case AV_PICTURE_TYPE_P: |
if (v->p_frame_skipped) |
vc1_decode_skip_blocks(v); |
else |
vc1_decode_p_blocks(v); |
break; |
case AV_PICTURE_TYPE_B: |
if (v->bi_type) { |
if (v->profile == PROFILE_ADVANCED) |
vc1_decode_i_blocks_adv(v); |
else |
vc1_decode_i_blocks(v); |
} else |
vc1_decode_b_blocks(v); |
break; |
} |
} |
} |
|
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER |
|
typedef struct { |
/** |
* Transform coefficients for both sprites in 16.16 fixed point format, |
* in the order they appear in the bitstream: |
* x scale |
* rotation 1 (unused) |
* x offset |
* rotation 2 (unused) |
* y scale |
* y offset |
* alpha |
*/ |
int coefs[2][7]; |
|
int effect_type, effect_flag; |
int effect_pcount1, effect_pcount2; ///< amount of effect parameters stored in effect_params |
int effect_params1[15], effect_params2[10]; ///< effect parameters in 16.16 fixed point format |
} SpriteData; |
|
static inline int get_fp_val(GetBitContext* gb) |
{ |
return (get_bits_long(gb, 30) - (1 << 29)) << 1; |
} |
|
static void vc1_sprite_parse_transform(GetBitContext* gb, int c[7]) |
{ |
c[1] = c[3] = 0; |
|
switch (get_bits(gb, 2)) { |
case 0: |
c[0] = 1 << 16; |
c[2] = get_fp_val(gb); |
c[4] = 1 << 16; |
break; |
case 1: |
c[0] = c[4] = get_fp_val(gb); |
c[2] = get_fp_val(gb); |
break; |
case 2: |
c[0] = get_fp_val(gb); |
c[2] = get_fp_val(gb); |
c[4] = get_fp_val(gb); |
break; |
case 3: |
c[0] = get_fp_val(gb); |
c[1] = get_fp_val(gb); |
c[2] = get_fp_val(gb); |
c[3] = get_fp_val(gb); |
c[4] = get_fp_val(gb); |
break; |
} |
c[5] = get_fp_val(gb); |
if (get_bits1(gb)) |
c[6] = get_fp_val(gb); |
else |
c[6] = 1 << 16; |
} |
|
static void vc1_parse_sprites(VC1Context *v, GetBitContext* gb, SpriteData* sd) |
{ |
AVCodecContext *avctx = v->s.avctx; |
int sprite, i; |
|
for (sprite = 0; sprite <= v->two_sprites; sprite++) { |
vc1_sprite_parse_transform(gb, sd->coefs[sprite]); |
if (sd->coefs[sprite][1] || sd->coefs[sprite][3]) |
avpriv_request_sample(avctx, "Non-zero rotation coefficients"); |
av_log(avctx, AV_LOG_DEBUG, sprite ? "S2:" : "S1:"); |
for (i = 0; i < 7; i++) |
av_log(avctx, AV_LOG_DEBUG, " %d.%.3d", |
sd->coefs[sprite][i] / (1<<16), |
(abs(sd->coefs[sprite][i]) & 0xFFFF) * 1000 / (1 << 16)); |
av_log(avctx, AV_LOG_DEBUG, "\n"); |
} |
|
skip_bits(gb, 2); |
if (sd->effect_type = get_bits_long(gb, 30)) { |
switch (sd->effect_pcount1 = get_bits(gb, 4)) { |
case 7: |
vc1_sprite_parse_transform(gb, sd->effect_params1); |
break; |
case 14: |
vc1_sprite_parse_transform(gb, sd->effect_params1); |
vc1_sprite_parse_transform(gb, sd->effect_params1 + 7); |
break; |
default: |
for (i = 0; i < sd->effect_pcount1; i++) |
sd->effect_params1[i] = get_fp_val(gb); |
} |
if (sd->effect_type != 13 || sd->effect_params1[0] != sd->coefs[0][6]) { |
// effect 13 is simple alpha blending and matches the opacity above |
av_log(avctx, AV_LOG_DEBUG, "Effect: %d; params: ", sd->effect_type); |
for (i = 0; i < sd->effect_pcount1; i++) |
av_log(avctx, AV_LOG_DEBUG, " %d.%.2d", |
sd->effect_params1[i] / (1 << 16), |
(abs(sd->effect_params1[i]) & 0xFFFF) * 1000 / (1 << 16)); |
av_log(avctx, AV_LOG_DEBUG, "\n"); |
} |
|
sd->effect_pcount2 = get_bits(gb, 16); |
if (sd->effect_pcount2 > 10) { |
av_log(avctx, AV_LOG_ERROR, "Too many effect parameters\n"); |
return; |
} else if (sd->effect_pcount2) { |
i = -1; |
av_log(avctx, AV_LOG_DEBUG, "Effect params 2: "); |
while (++i < sd->effect_pcount2) { |
sd->effect_params2[i] = get_fp_val(gb); |
av_log(avctx, AV_LOG_DEBUG, " %d.%.2d", |
sd->effect_params2[i] / (1 << 16), |
(abs(sd->effect_params2[i]) & 0xFFFF) * 1000 / (1 << 16)); |
} |
av_log(avctx, AV_LOG_DEBUG, "\n"); |
} |
} |
if (sd->effect_flag = get_bits1(gb)) |
av_log(avctx, AV_LOG_DEBUG, "Effect flag set\n"); |
|
if (get_bits_count(gb) >= gb->size_in_bits + |
(avctx->codec_id == AV_CODEC_ID_WMV3IMAGE ? 64 : 0)) |
av_log(avctx, AV_LOG_ERROR, "Buffer overrun\n"); |
if (get_bits_count(gb) < gb->size_in_bits - 8) |
av_log(avctx, AV_LOG_WARNING, "Buffer not fully read\n"); |
} |
|
static void vc1_draw_sprites(VC1Context *v, SpriteData* sd) |
{ |
int i, plane, row, sprite; |
int sr_cache[2][2] = { { -1, -1 }, { -1, -1 } }; |
uint8_t* src_h[2][2]; |
int xoff[2], xadv[2], yoff[2], yadv[2], alpha; |
int ysub[2]; |
MpegEncContext *s = &v->s; |
|
for (i = 0; i < 2; i++) { |
xoff[i] = av_clip(sd->coefs[i][2], 0, v->sprite_width-1 << 16); |
xadv[i] = sd->coefs[i][0]; |
if (xadv[i] != 1<<16 || (v->sprite_width << 16) - (v->output_width << 16) - xoff[i]) |
xadv[i] = av_clip(xadv[i], 0, ((v->sprite_width<<16) - xoff[i] - 1) / v->output_width); |
|
yoff[i] = av_clip(sd->coefs[i][5], 0, v->sprite_height-1 << 16); |
yadv[i] = av_clip(sd->coefs[i][4], 0, ((v->sprite_height << 16) - yoff[i]) / v->output_height); |
} |
alpha = av_clip(sd->coefs[1][6], 0, (1<<16) - 1); |
|
for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++) { |
int width = v->output_width>>!!plane; |
|
for (row = 0; row < v->output_height>>!!plane; row++) { |
uint8_t *dst = v->sprite_output_frame.data[plane] + |
v->sprite_output_frame.linesize[plane] * row; |
|
for (sprite = 0; sprite <= v->two_sprites; sprite++) { |
uint8_t *iplane = s->current_picture.f.data[plane]; |
int iline = s->current_picture.f.linesize[plane]; |
int ycoord = yoff[sprite] + yadv[sprite] * row; |
int yline = ycoord >> 16; |
int next_line; |
ysub[sprite] = ycoord & 0xFFFF; |
if (sprite) { |
iplane = s->last_picture.f.data[plane]; |
iline = s->last_picture.f.linesize[plane]; |
} |
next_line = FFMIN(yline + 1, (v->sprite_height >> !!plane) - 1) * iline; |
if (!(xoff[sprite] & 0xFFFF) && xadv[sprite] == 1 << 16) { |
src_h[sprite][0] = iplane + (xoff[sprite] >> 16) + yline * iline; |
if (ysub[sprite]) |
src_h[sprite][1] = iplane + (xoff[sprite] >> 16) + next_line; |
} else { |
if (sr_cache[sprite][0] != yline) { |
if (sr_cache[sprite][1] == yline) { |
FFSWAP(uint8_t*, v->sr_rows[sprite][0], v->sr_rows[sprite][1]); |
FFSWAP(int, sr_cache[sprite][0], sr_cache[sprite][1]); |
} else { |
v->vc1dsp.sprite_h(v->sr_rows[sprite][0], iplane + yline * iline, xoff[sprite], xadv[sprite], width); |
sr_cache[sprite][0] = yline; |
} |
} |
if (ysub[sprite] && sr_cache[sprite][1] != yline + 1) { |
v->vc1dsp.sprite_h(v->sr_rows[sprite][1], |
iplane + next_line, xoff[sprite], |
xadv[sprite], width); |
sr_cache[sprite][1] = yline + 1; |
} |
src_h[sprite][0] = v->sr_rows[sprite][0]; |
src_h[sprite][1] = v->sr_rows[sprite][1]; |
} |
} |
|
if (!v->two_sprites) { |
if (ysub[0]) { |
v->vc1dsp.sprite_v_single(dst, src_h[0][0], src_h[0][1], ysub[0], width); |
} else { |
memcpy(dst, src_h[0][0], width); |
} |
} else { |
if (ysub[0] && ysub[1]) { |
v->vc1dsp.sprite_v_double_twoscale(dst, src_h[0][0], src_h[0][1], ysub[0], |
src_h[1][0], src_h[1][1], ysub[1], alpha, width); |
} else if (ysub[0]) { |
v->vc1dsp.sprite_v_double_onescale(dst, src_h[0][0], src_h[0][1], ysub[0], |
src_h[1][0], alpha, width); |
} else if (ysub[1]) { |
v->vc1dsp.sprite_v_double_onescale(dst, src_h[1][0], src_h[1][1], ysub[1], |
src_h[0][0], (1<<16)-1-alpha, width); |
} else { |
v->vc1dsp.sprite_v_double_noscale(dst, src_h[0][0], src_h[1][0], alpha, width); |
} |
} |
} |
|
if (!plane) { |
for (i = 0; i < 2; i++) { |
xoff[i] >>= 1; |
yoff[i] >>= 1; |
} |
} |
|
} |
} |
|
|
static int vc1_decode_sprites(VC1Context *v, GetBitContext* gb) |
{ |
int ret; |
MpegEncContext *s = &v->s; |
AVCodecContext *avctx = s->avctx; |
SpriteData sd; |
|
vc1_parse_sprites(v, gb, &sd); |
|
if (!s->current_picture.f.data[0]) { |
av_log(avctx, AV_LOG_ERROR, "Got no sprites\n"); |
return -1; |
} |
|
if (v->two_sprites && (!s->last_picture_ptr || !s->last_picture.f.data[0])) { |
av_log(avctx, AV_LOG_WARNING, "Need two sprites, only got one\n"); |
v->two_sprites = 0; |
} |
|
av_frame_unref(&v->sprite_output_frame); |
if ((ret = ff_get_buffer(avctx, &v->sprite_output_frame, 0)) < 0) |
return ret; |
|
vc1_draw_sprites(v, &sd); |
|
return 0; |
} |
|
static void vc1_sprite_flush(AVCodecContext *avctx) |
{ |
VC1Context *v = avctx->priv_data; |
MpegEncContext *s = &v->s; |
AVFrame *f = &s->current_picture.f; |
int plane, i; |
|
/* Windows Media Image codecs have a convergence interval of two keyframes. |
Since we can't enforce it, clear to black the missing sprite. This is |
wrong but it looks better than doing nothing. */ |
|
if (f->data[0]) |
for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++) |
for (i = 0; i < v->sprite_height>>!!plane; i++) |
memset(f->data[plane] + i * f->linesize[plane], |
plane ? 128 : 0, f->linesize[plane]); |
} |
|
#endif |
|
av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v) |
{ |
MpegEncContext *s = &v->s; |
int i; |
|
/* Allocate mb bitplanes */ |
v->mv_type_mb_plane = av_malloc (s->mb_stride * s->mb_height); |
v->direct_mb_plane = av_malloc (s->mb_stride * s->mb_height); |
v->forward_mb_plane = av_malloc (s->mb_stride * s->mb_height); |
v->fieldtx_plane = av_mallocz(s->mb_stride * s->mb_height); |
v->acpred_plane = av_malloc (s->mb_stride * s->mb_height); |
v->over_flags_plane = av_malloc (s->mb_stride * s->mb_height); |
|
v->n_allocated_blks = s->mb_width + 2; |
v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks); |
v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride); |
v->cbp = v->cbp_base + s->mb_stride; |
v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride); |
v->ttblk = v->ttblk_base + s->mb_stride; |
v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride); |
v->is_intra = v->is_intra_base + s->mb_stride; |
v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride); |
v->luma_mv = v->luma_mv_base + s->mb_stride; |
|
/* allocate block type info in that way so it could be used with s->block_index[] */ |
v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); |
v->mb_type[0] = v->mb_type_base + s->b8_stride + 1; |
v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1; |
v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1); |
|
/* allocate memory to store block level MV info */ |
v->blk_mv_type_base = av_mallocz( s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); |
v->blk_mv_type = v->blk_mv_type_base + s->b8_stride + 1; |
v->mv_f_base = av_mallocz(2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); |
v->mv_f[0] = v->mv_f_base + s->b8_stride + 1; |
v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); |
v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); |
v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1; |
v->mv_f_next[1] = v->mv_f_next[0] + (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); |
|
/* Init coded blocks info */ |
if (v->profile == PROFILE_ADVANCED) { |
// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0) |
// return -1; |
// if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0) |
// return -1; |
} |
|
ff_intrax8_common_init(&v->x8,s); |
|
if (s->avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || s->avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
for (i = 0; i < 4; i++) |
if (!(v->sr_rows[i >> 1][i & 1] = av_malloc(v->output_width))) |
return AVERROR(ENOMEM); |
} |
|
if (!v->mv_type_mb_plane || !v->direct_mb_plane || !v->acpred_plane || !v->over_flags_plane || |
!v->block || !v->cbp_base || !v->ttblk_base || !v->is_intra_base || !v->luma_mv_base || |
!v->mb_type_base) { |
av_freep(&v->mv_type_mb_plane); |
av_freep(&v->direct_mb_plane); |
av_freep(&v->acpred_plane); |
av_freep(&v->over_flags_plane); |
av_freep(&v->block); |
av_freep(&v->cbp_base); |
av_freep(&v->ttblk_base); |
av_freep(&v->is_intra_base); |
av_freep(&v->luma_mv_base); |
av_freep(&v->mb_type_base); |
return AVERROR(ENOMEM); |
} |
|
return 0; |
} |
|
av_cold void ff_vc1_init_transposed_scantables(VC1Context *v) |
{ |
int i; |
for (i = 0; i < 64; i++) { |
#define transpose(x) ((x >> 3) | ((x & 7) << 3)) |
v->zz_8x8[0][i] = transpose(ff_wmv1_scantable[0][i]); |
v->zz_8x8[1][i] = transpose(ff_wmv1_scantable[1][i]); |
v->zz_8x8[2][i] = transpose(ff_wmv1_scantable[2][i]); |
v->zz_8x8[3][i] = transpose(ff_wmv1_scantable[3][i]); |
v->zzi_8x8[i] = transpose(ff_vc1_adv_interlaced_8x8_zz[i]); |
} |
v->left_blk_sh = 0; |
v->top_blk_sh = 3; |
} |
|
/** Initialize a VC1/WMV3 decoder |
* @todo TODO: Handle VC-1 IDUs (Transport level?) |
* @todo TODO: Decypher remaining bits in extra_data |
*/ |
static av_cold int vc1_decode_init(AVCodecContext *avctx) |
{ |
VC1Context *v = avctx->priv_data; |
MpegEncContext *s = &v->s; |
GetBitContext gb; |
int ret; |
|
/* save the container output size for WMImage */ |
v->output_width = avctx->width; |
v->output_height = avctx->height; |
|
if (!avctx->extradata_size || !avctx->extradata) |
return -1; |
if (!(avctx->flags & CODEC_FLAG_GRAY)) |
avctx->pix_fmt = avctx->get_format(avctx, avctx->codec->pix_fmts); |
else |
avctx->pix_fmt = AV_PIX_FMT_GRAY8; |
avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt); |
v->s.avctx = avctx; |
avctx->flags |= CODEC_FLAG_EMU_EDGE; |
v->s.flags |= CODEC_FLAG_EMU_EDGE; |
|
if ((ret = ff_vc1_init_common(v)) < 0) |
return ret; |
// ensure static VLC tables are initialized |
if ((ret = ff_msmpeg4_decode_init(avctx)) < 0) |
return ret; |
if ((ret = ff_vc1_decode_init_alloc_tables(v)) < 0) |
return ret; |
// Hack to ensure the above functions will be called |
// again once we know all necessary settings. |
// That this is necessary might indicate a bug. |
ff_vc1_decode_end(avctx); |
|
ff_h264chroma_init(&v->h264chroma, 8); |
ff_vc1dsp_init(&v->vc1dsp); |
|
if (avctx->codec_id == AV_CODEC_ID_WMV3 || avctx->codec_id == AV_CODEC_ID_WMV3IMAGE) { |
int count = 0; |
|
// looks like WMV3 has a sequence header stored in the extradata |
// advanced sequence header may be before the first frame |
// the last byte of the extradata is a version number, 1 for the |
// samples we can decode |
|
init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8); |
|
if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) |
return ret; |
|
count = avctx->extradata_size*8 - get_bits_count(&gb); |
if (count > 0) { |
av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n", |
count, get_bits(&gb, count)); |
} else if (count < 0) { |
av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count); |
} |
} else { // VC1/WVC1/WVP2 |
const uint8_t *start = avctx->extradata; |
uint8_t *end = avctx->extradata + avctx->extradata_size; |
const uint8_t *next; |
int size, buf2_size; |
uint8_t *buf2 = NULL; |
int seq_initialized = 0, ep_initialized = 0; |
|
if (avctx->extradata_size < 16) { |
av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size); |
return -1; |
} |
|
buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv |
next = start; |
for (; next < end; start = next) { |
next = find_next_marker(start + 4, end); |
size = next - start - 4; |
if (size <= 0) |
continue; |
buf2_size = vc1_unescape_buffer(start + 4, size, buf2); |
init_get_bits(&gb, buf2, buf2_size * 8); |
switch (AV_RB32(start)) { |
case VC1_CODE_SEQHDR: |
if ((ret = ff_vc1_decode_sequence_header(avctx, v, &gb)) < 0) { |
av_free(buf2); |
return ret; |
} |
seq_initialized = 1; |
break; |
case VC1_CODE_ENTRYPOINT: |
if ((ret = ff_vc1_decode_entry_point(avctx, v, &gb)) < 0) { |
av_free(buf2); |
return ret; |
} |
ep_initialized = 1; |
break; |
} |
} |
av_free(buf2); |
if (!seq_initialized || !ep_initialized) { |
av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n"); |
return -1; |
} |
v->res_sprite = (avctx->codec_id == AV_CODEC_ID_VC1IMAGE); |
} |
|
avctx->profile = v->profile; |
if (v->profile == PROFILE_ADVANCED) |
avctx->level = v->level; |
|
avctx->has_b_frames = !!avctx->max_b_frames; |
|
s->mb_width = (avctx->coded_width + 15) >> 4; |
s->mb_height = (avctx->coded_height + 15) >> 4; |
|
if (v->profile == PROFILE_ADVANCED || v->res_fasttx) { |
ff_vc1_init_transposed_scantables(v); |
} else { |
memcpy(v->zz_8x8, ff_wmv1_scantable, 4*64); |
v->left_blk_sh = 3; |
v->top_blk_sh = 0; |
} |
|
if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
v->sprite_width = avctx->coded_width; |
v->sprite_height = avctx->coded_height; |
|
avctx->coded_width = avctx->width = v->output_width; |
avctx->coded_height = avctx->height = v->output_height; |
|
// prevent 16.16 overflows |
if (v->sprite_width > 1 << 14 || |
v->sprite_height > 1 << 14 || |
v->output_width > 1 << 14 || |
v->output_height > 1 << 14) return -1; |
|
if ((v->sprite_width&1) || (v->sprite_height&1)) { |
avpriv_request_sample(avctx, "odd sprites support"); |
return AVERROR_PATCHWELCOME; |
} |
} |
return 0; |
} |
|
/** Close a VC1/WMV3 decoder |
* @warning Initial try at using MpegEncContext stuff |
*/ |
av_cold int ff_vc1_decode_end(AVCodecContext *avctx) |
{ |
VC1Context *v = avctx->priv_data; |
int i; |
|
av_frame_unref(&v->sprite_output_frame); |
|
for (i = 0; i < 4; i++) |
av_freep(&v->sr_rows[i >> 1][i & 1]); |
av_freep(&v->hrd_rate); |
av_freep(&v->hrd_buffer); |
ff_MPV_common_end(&v->s); |
av_freep(&v->mv_type_mb_plane); |
av_freep(&v->direct_mb_plane); |
av_freep(&v->forward_mb_plane); |
av_freep(&v->fieldtx_plane); |
av_freep(&v->acpred_plane); |
av_freep(&v->over_flags_plane); |
av_freep(&v->mb_type_base); |
av_freep(&v->blk_mv_type_base); |
av_freep(&v->mv_f_base); |
av_freep(&v->mv_f_next_base); |
av_freep(&v->block); |
av_freep(&v->cbp_base); |
av_freep(&v->ttblk_base); |
av_freep(&v->is_intra_base); // FIXME use v->mb_type[] |
av_freep(&v->luma_mv_base); |
ff_intrax8_common_end(&v->x8); |
return 0; |
} |
|
|
/** Decode a VC1/WMV3 frame |
* @todo TODO: Handle VC-1 IDUs (Transport level?) |
*/ |
static int vc1_decode_frame(AVCodecContext *avctx, void *data, |
int *got_frame, AVPacket *avpkt) |
{ |
const uint8_t *buf = avpkt->data; |
int buf_size = avpkt->size, n_slices = 0, i, ret; |
VC1Context *v = avctx->priv_data; |
MpegEncContext *s = &v->s; |
AVFrame *pict = data; |
uint8_t *buf2 = NULL; |
const uint8_t *buf_start = buf, *buf_start_second_field = NULL; |
int mb_height, n_slices1=-1; |
struct { |
uint8_t *buf; |
GetBitContext gb; |
int mby_start; |
} *slices = NULL, *tmp; |
|
v->second_field = 0; |
|
if(s->flags & CODEC_FLAG_LOW_DELAY) |
s->low_delay = 1; |
|
/* no supplementary picture */ |
if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) { |
/* special case for last picture */ |
if (s->low_delay == 0 && s->next_picture_ptr) { |
if ((ret = av_frame_ref(pict, &s->next_picture_ptr->f)) < 0) |
return ret; |
s->next_picture_ptr = NULL; |
|
*got_frame = 1; |
} |
|
return buf_size; |
} |
|
if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) { |
if (v->profile < PROFILE_ADVANCED) |
avctx->pix_fmt = AV_PIX_FMT_VDPAU_WMV3; |
else |
avctx->pix_fmt = AV_PIX_FMT_VDPAU_VC1; |
} |
|
//for advanced profile we may need to parse and unescape data |
if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
int buf_size2 = 0; |
buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
if (!buf2) |
return AVERROR(ENOMEM); |
|
if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */ |
const uint8_t *start, *end, *next; |
int size; |
|
next = buf; |
for (start = buf, end = buf + buf_size; next < end; start = next) { |
next = find_next_marker(start + 4, end); |
size = next - start - 4; |
if (size <= 0) continue; |
switch (AV_RB32(start)) { |
case VC1_CODE_FRAME: |
if (avctx->hwaccel || |
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
buf_start = start; |
buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); |
break; |
case VC1_CODE_FIELD: { |
int buf_size3; |
if (avctx->hwaccel || |
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
buf_start_second_field = start; |
tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1)); |
if (!tmp) |
goto err; |
slices = tmp; |
slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
if (!slices[n_slices].buf) |
goto err; |
buf_size3 = vc1_unescape_buffer(start + 4, size, |
slices[n_slices].buf); |
init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
buf_size3 << 3); |
/* assuming that the field marker is at the exact middle, |
hope it's correct */ |
slices[n_slices].mby_start = s->mb_height >> 1; |
n_slices1 = n_slices - 1; // index of the last slice of the first field |
n_slices++; |
break; |
} |
case VC1_CODE_ENTRYPOINT: /* it should be before frame data */ |
buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); |
init_get_bits(&s->gb, buf2, buf_size2 * 8); |
ff_vc1_decode_entry_point(avctx, v, &s->gb); |
break; |
case VC1_CODE_SLICE: { |
int buf_size3; |
tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1)); |
if (!tmp) |
goto err; |
slices = tmp; |
slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
if (!slices[n_slices].buf) |
goto err; |
buf_size3 = vc1_unescape_buffer(start + 4, size, |
slices[n_slices].buf); |
init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
buf_size3 << 3); |
slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9); |
n_slices++; |
break; |
} |
} |
} |
} else if (v->interlace && ((buf[0] & 0xC0) == 0xC0)) { /* WVC1 interlaced stores both fields divided by marker */ |
const uint8_t *divider; |
int buf_size3; |
|
divider = find_next_marker(buf, buf + buf_size); |
if ((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD) { |
av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n"); |
goto err; |
} else { // found field marker, unescape second field |
if (avctx->hwaccel || |
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
buf_start_second_field = divider; |
tmp = av_realloc(slices, sizeof(*slices) * (n_slices+1)); |
if (!tmp) |
goto err; |
slices = tmp; |
slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); |
if (!slices[n_slices].buf) |
goto err; |
buf_size3 = vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf); |
init_get_bits(&slices[n_slices].gb, slices[n_slices].buf, |
buf_size3 << 3); |
slices[n_slices].mby_start = s->mb_height >> 1; |
n_slices1 = n_slices - 1; |
n_slices++; |
} |
buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2); |
} else { |
buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2); |
} |
init_get_bits(&s->gb, buf2, buf_size2*8); |
} else |
init_get_bits(&s->gb, buf, buf_size*8); |
|
if (v->res_sprite) { |
v->new_sprite = !get_bits1(&s->gb); |
v->two_sprites = get_bits1(&s->gb); |
/* res_sprite means a Windows Media Image stream, AV_CODEC_ID_*IMAGE means |
we're using the sprite compositor. These are intentionally kept separate |
so you can get the raw sprites by using the wmv3 decoder for WMVP or |
the vc1 one for WVP2 */ |
if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
if (v->new_sprite) { |
// switch AVCodecContext parameters to those of the sprites |
avctx->width = avctx->coded_width = v->sprite_width; |
avctx->height = avctx->coded_height = v->sprite_height; |
} else { |
goto image; |
} |
} |
} |
|
if (s->context_initialized && |
(s->width != avctx->coded_width || |
s->height != avctx->coded_height)) { |
ff_vc1_decode_end(avctx); |
} |
|
if (!s->context_initialized) { |
if (ff_msmpeg4_decode_init(avctx) < 0) |
goto err; |
if (ff_vc1_decode_init_alloc_tables(v) < 0) { |
ff_MPV_common_end(s); |
goto err; |
} |
|
s->low_delay = !avctx->has_b_frames || v->res_sprite; |
|
if (v->profile == PROFILE_ADVANCED) { |
if(avctx->coded_width<=1 || avctx->coded_height<=1) |
goto err; |
s->h_edge_pos = avctx->coded_width; |
s->v_edge_pos = avctx->coded_height; |
} |
} |
|
/* We need to set current_picture_ptr before reading the header, |
* otherwise we cannot store anything in there. */ |
if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) { |
int i = ff_find_unused_picture(s, 0); |
if (i < 0) |
goto err; |
s->current_picture_ptr = &s->picture[i]; |
} |
|
// do parse frame header |
v->pic_header_flag = 0; |
v->first_pic_header_flag = 1; |
if (v->profile < PROFILE_ADVANCED) { |
if (ff_vc1_parse_frame_header(v, &s->gb) < 0) { |
goto err; |
} |
} else { |
if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) { |
goto err; |
} |
} |
v->first_pic_header_flag = 0; |
|
if (avctx->debug & FF_DEBUG_PICT_INFO) |
av_log(v->s.avctx, AV_LOG_DEBUG, "pict_type: %c\n", av_get_picture_type_char(s->pict_type)); |
|
if ((avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) |
&& s->pict_type != AV_PICTURE_TYPE_I) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Sprite decoder: expected I-frame\n"); |
goto err; |
} |
|
if ((s->mb_height >> v->field_mode) == 0) { |
av_log(v->s.avctx, AV_LOG_ERROR, "image too short\n"); |
goto err; |
} |
|
// process pulldown flags |
s->current_picture_ptr->f.repeat_pict = 0; |
// Pulldown flags are only valid when 'broadcast' has been set. |
// So ticks_per_frame will be 2 |
if (v->rff) { |
// repeat field |
s->current_picture_ptr->f.repeat_pict = 1; |
} else if (v->rptfrm) { |
// repeat frames |
s->current_picture_ptr->f.repeat_pict = v->rptfrm * 2; |
} |
|
// for skipping the frame |
s->current_picture.f.pict_type = s->pict_type; |
s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I; |
|
/* skip B-frames if we don't have reference frames */ |
if (s->last_picture_ptr == NULL && (s->pict_type == AV_PICTURE_TYPE_B || s->droppable)) { |
goto err; |
} |
if ((avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) || |
(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) || |
avctx->skip_frame >= AVDISCARD_ALL) { |
goto end; |
} |
|
if (s->next_p_frame_damaged) { |
if (s->pict_type == AV_PICTURE_TYPE_B) |
goto end; |
else |
s->next_p_frame_damaged = 0; |
} |
|
if (ff_MPV_frame_start(s, avctx) < 0) { |
goto err; |
} |
|
v->s.current_picture_ptr->f.interlaced_frame = (v->fcm != PROGRESSIVE); |
v->s.current_picture_ptr->f.top_field_first = v->tff; |
|
s->me.qpel_put = s->dsp.put_qpel_pixels_tab; |
s->me.qpel_avg = s->dsp.avg_qpel_pixels_tab; |
|
if ((CONFIG_VC1_VDPAU_DECODER) |
&&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) { |
if (v->field_mode && buf_start_second_field) { |
ff_vdpau_vc1_decode_picture(s, buf_start, buf_start_second_field - buf_start); |
ff_vdpau_vc1_decode_picture(s, buf_start_second_field, (buf + buf_size) - buf_start_second_field); |
} else { |
ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start); |
} |
} else if (avctx->hwaccel) { |
if (v->field_mode && buf_start_second_field) { |
// decode first field |
s->picture_structure = PICT_BOTTOM_FIELD - v->tff; |
if (avctx->hwaccel->start_frame(avctx, buf_start, buf_start_second_field - buf_start) < 0) |
goto err; |
if (avctx->hwaccel->decode_slice(avctx, buf_start, buf_start_second_field - buf_start) < 0) |
goto err; |
if (avctx->hwaccel->end_frame(avctx) < 0) |
goto err; |
|
// decode second field |
s->gb = slices[n_slices1 + 1].gb; |
s->picture_structure = PICT_TOP_FIELD + v->tff; |
v->second_field = 1; |
v->pic_header_flag = 0; |
if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) { |
av_log(avctx, AV_LOG_ERROR, "parsing header for second field failed"); |
goto err; |
} |
v->s.current_picture_ptr->f.pict_type = v->s.pict_type; |
|
if (avctx->hwaccel->start_frame(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0) |
goto err; |
if (avctx->hwaccel->decode_slice(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field) < 0) |
goto err; |
if (avctx->hwaccel->end_frame(avctx) < 0) |
goto err; |
} else { |
s->picture_structure = PICT_FRAME; |
if (avctx->hwaccel->start_frame(avctx, buf_start, (buf + buf_size) - buf_start) < 0) |
goto err; |
if (avctx->hwaccel->decode_slice(avctx, buf_start, (buf + buf_size) - buf_start) < 0) |
goto err; |
if (avctx->hwaccel->end_frame(avctx) < 0) |
goto err; |
} |
} else { |
int header_ret = 0; |
|
ff_mpeg_er_frame_start(s); |
|
v->bits = buf_size * 8; |
v->end_mb_x = s->mb_width; |
if (v->field_mode) { |
s->current_picture.f.linesize[0] <<= 1; |
s->current_picture.f.linesize[1] <<= 1; |
s->current_picture.f.linesize[2] <<= 1; |
s->linesize <<= 1; |
s->uvlinesize <<= 1; |
} |
mb_height = s->mb_height >> v->field_mode; |
|
av_assert0 (mb_height > 0); |
|
for (i = 0; i <= n_slices; i++) { |
if (i > 0 && slices[i - 1].mby_start >= mb_height) { |
if (v->field_mode <= 0) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Slice %d starts beyond " |
"picture boundary (%d >= %d)\n", i, |
slices[i - 1].mby_start, mb_height); |
continue; |
} |
v->second_field = 1; |
v->blocks_off = s->b8_stride * (s->mb_height&~1); |
v->mb_off = s->mb_stride * s->mb_height >> 1; |
} else { |
v->second_field = 0; |
v->blocks_off = 0; |
v->mb_off = 0; |
} |
if (i) { |
v->pic_header_flag = 0; |
if (v->field_mode && i == n_slices1 + 2) { |
if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Field header damaged\n"); |
if (avctx->err_recognition & AV_EF_EXPLODE) |
goto err; |
continue; |
} |
} else if (get_bits1(&s->gb)) { |
v->pic_header_flag = 1; |
if ((header_ret = ff_vc1_parse_frame_header_adv(v, &s->gb)) < 0) { |
av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n"); |
if (avctx->err_recognition & AV_EF_EXPLODE) |
goto err; |
continue; |
} |
} |
} |
if (header_ret < 0) |
continue; |
s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start % mb_height); |
if (!v->field_mode || v->second_field) |
s->end_mb_y = (i == n_slices ) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height); |
else { |
if (i >= n_slices) { |
av_log(v->s.avctx, AV_LOG_ERROR, "first field slice count too large\n"); |
continue; |
} |
s->end_mb_y = (i <= n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height); |
} |
if (s->end_mb_y <= s->start_mb_y) { |
av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y); |
continue; |
} |
if (!v->p_frame_skipped && s->pict_type != AV_PICTURE_TYPE_I && !v->cbpcy_vlc) { |
av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n"); |
continue; |
} |
ff_vc1_decode_blocks(v); |
if (i != n_slices) |
s->gb = slices[i].gb; |
} |
if (v->field_mode) { |
v->second_field = 0; |
s->current_picture.f.linesize[0] >>= 1; |
s->current_picture.f.linesize[1] >>= 1; |
s->current_picture.f.linesize[2] >>= 1; |
s->linesize >>= 1; |
s->uvlinesize >>= 1; |
if (v->s.pict_type != AV_PICTURE_TYPE_BI && v->s.pict_type != AV_PICTURE_TYPE_B) { |
FFSWAP(uint8_t *, v->mv_f_next[0], v->mv_f[0]); |
FFSWAP(uint8_t *, v->mv_f_next[1], v->mv_f[1]); |
} |
} |
av_dlog(s->avctx, "Consumed %i/%i bits\n", |
get_bits_count(&s->gb), s->gb.size_in_bits); |
// if (get_bits_count(&s->gb) > buf_size * 8) |
// return -1; |
if(s->er.error_occurred && s->pict_type == AV_PICTURE_TYPE_B) |
goto err; |
if (!v->field_mode) |
ff_er_frame_end(&s->er); |
} |
|
ff_MPV_frame_end(s); |
|
if (avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { |
image: |
avctx->width = avctx->coded_width = v->output_width; |
avctx->height = avctx->coded_height = v->output_height; |
if (avctx->skip_frame >= AVDISCARD_NONREF) |
goto end; |
#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER |
if (vc1_decode_sprites(v, &s->gb)) |
goto err; |
#endif |
if ((ret = av_frame_ref(pict, &v->sprite_output_frame)) < 0) |
goto err; |
*got_frame = 1; |
} else { |
if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) { |
if ((ret = av_frame_ref(pict, &s->current_picture_ptr->f)) < 0) |
goto err; |
ff_print_debug_info(s, s->current_picture_ptr, pict); |
} else if (s->last_picture_ptr != NULL) { |
if ((ret = av_frame_ref(pict, &s->last_picture_ptr->f)) < 0) |
goto err; |
ff_print_debug_info(s, s->last_picture_ptr, pict); |
} |
if (s->last_picture_ptr || s->low_delay) { |
*got_frame = 1; |
} |
} |
|
end: |
av_free(buf2); |
for (i = 0; i < n_slices; i++) |
av_free(slices[i].buf); |
av_free(slices); |
return buf_size; |
|
err: |
av_free(buf2); |
for (i = 0; i < n_slices; i++) |
av_free(slices[i].buf); |
av_free(slices); |
return -1; |
} |
|
|
static const AVProfile profiles[] = { |
{ FF_PROFILE_VC1_SIMPLE, "Simple" }, |
{ FF_PROFILE_VC1_MAIN, "Main" }, |
{ FF_PROFILE_VC1_COMPLEX, "Complex" }, |
{ FF_PROFILE_VC1_ADVANCED, "Advanced" }, |
{ FF_PROFILE_UNKNOWN }, |
}; |
|
static const enum AVPixelFormat vc1_hwaccel_pixfmt_list_420[] = { |
#if CONFIG_DXVA2 |
AV_PIX_FMT_DXVA2_VLD, |
#endif |
#if CONFIG_VAAPI |
AV_PIX_FMT_VAAPI_VLD, |
#endif |
#if CONFIG_VDPAU |
AV_PIX_FMT_VDPAU, |
#endif |
AV_PIX_FMT_YUV420P, |
AV_PIX_FMT_NONE |
}; |
|
AVCodec ff_vc1_decoder = { |
.name = "vc1", |
.long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_VC1, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.flush = ff_mpeg_flush, |
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY, |
.pix_fmts = vc1_hwaccel_pixfmt_list_420, |
.profiles = NULL_IF_CONFIG_SMALL(profiles) |
}; |
|
#if CONFIG_WMV3_DECODER |
AVCodec ff_wmv3_decoder = { |
.name = "wmv3", |
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_WMV3, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.flush = ff_mpeg_flush, |
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY, |
.pix_fmts = vc1_hwaccel_pixfmt_list_420, |
.profiles = NULL_IF_CONFIG_SMALL(profiles) |
}; |
#endif |
|
#if CONFIG_WMV3_VDPAU_DECODER |
AVCodec ff_wmv3_vdpau_decoder = { |
.name = "wmv3_vdpau", |
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 VDPAU"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_WMV3, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU_WMV3, AV_PIX_FMT_NONE }, |
.profiles = NULL_IF_CONFIG_SMALL(profiles) |
}; |
#endif |
|
#if CONFIG_VC1_VDPAU_DECODER |
AVCodec ff_vc1_vdpau_decoder = { |
.name = "vc1_vdpau", |
.long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 VDPAU"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_VC1, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU_VC1, AV_PIX_FMT_NONE }, |
.profiles = NULL_IF_CONFIG_SMALL(profiles) |
}; |
#endif |
|
#if CONFIG_WMV3IMAGE_DECODER |
AVCodec ff_wmv3image_decoder = { |
.name = "wmv3image", |
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_WMV3IMAGE, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.capabilities = CODEC_CAP_DR1, |
.flush = vc1_sprite_flush, |
.pix_fmts = ff_pixfmt_list_420 |
}; |
#endif |
|
#if CONFIG_VC1IMAGE_DECODER |
AVCodec ff_vc1image_decoder = { |
.name = "vc1image", |
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image v2"), |
.type = AVMEDIA_TYPE_VIDEO, |
.id = AV_CODEC_ID_VC1IMAGE, |
.priv_data_size = sizeof(VC1Context), |
.init = vc1_decode_init, |
.close = ff_vc1_decode_end, |
.decode = vc1_decode_frame, |
.capabilities = CODEC_CAP_DR1, |
.flush = vc1_sprite_flush, |
.pix_fmts = ff_pixfmt_list_420 |
}; |
#endif |