0,0 → 1,559 |
/* |
* Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at> |
* 2010 James Darnley <james.darnley@gmail.com> |
* |
* 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 |
*/ |
|
#include "libavutil/avassert.h" |
#include "libavutil/cpu.h" |
#include "libavutil/common.h" |
#include "libavutil/opt.h" |
#include "libavutil/pixdesc.h" |
#include "libavutil/imgutils.h" |
#include "avfilter.h" |
#include "formats.h" |
#include "internal.h" |
#include "video.h" |
#include "yadif.h" |
|
typedef struct ThreadData { |
AVFrame *frame; |
int plane; |
int w, h; |
int parity; |
int tff; |
} ThreadData; |
|
#define CHECK(j)\ |
{ int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\ |
+ FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\ |
+ FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\ |
if (score < spatial_score) {\ |
spatial_score= score;\ |
spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\ |
|
/* The is_not_edge argument here controls when the code will enter a branch |
* which reads up to and including x-3 and x+3. */ |
|
#define FILTER(start, end, is_not_edge) \ |
for (x = start; x < end; x++) { \ |
int c = cur[mrefs]; \ |
int d = (prev2[0] + next2[0])>>1; \ |
int e = cur[prefs]; \ |
int temporal_diff0 = FFABS(prev2[0] - next2[0]); \ |
int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \ |
int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \ |
int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \ |
int spatial_pred = (c+e) >> 1; \ |
\ |
if (is_not_edge) {\ |
int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \ |
+ FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \ |
CHECK(-1) CHECK(-2) }} }} \ |
CHECK( 1) CHECK( 2) }} }} \ |
}\ |
\ |
if (!(mode&2)) { \ |
int b = (prev2[2 * mrefs] + next2[2 * mrefs])>>1; \ |
int f = (prev2[2 * prefs] + next2[2 * prefs])>>1; \ |
int max = FFMAX3(d - e, d - c, FFMIN(b - c, f - e)); \ |
int min = FFMIN3(d - e, d - c, FFMAX(b - c, f - e)); \ |
\ |
diff = FFMAX3(diff, min, -max); \ |
} \ |
\ |
if (spatial_pred > d + diff) \ |
spatial_pred = d + diff; \ |
else if (spatial_pred < d - diff) \ |
spatial_pred = d - diff; \ |
\ |
dst[0] = spatial_pred; \ |
\ |
dst++; \ |
cur++; \ |
prev++; \ |
next++; \ |
prev2++; \ |
next2++; \ |
} |
|
static void filter_line_c(void *dst1, |
void *prev1, void *cur1, void *next1, |
int w, int prefs, int mrefs, int parity, int mode) |
{ |
uint8_t *dst = dst1; |
uint8_t *prev = prev1; |
uint8_t *cur = cur1; |
uint8_t *next = next1; |
int x; |
uint8_t *prev2 = parity ? prev : cur ; |
uint8_t *next2 = parity ? cur : next; |
|
/* The function is called with the pointers already pointing to data[3] and |
* with 6 subtracted from the width. This allows the FILTER macro to be |
* called so that it processes all the pixels normally. A constant value of |
* true for is_not_edge lets the compiler ignore the if statement. */ |
FILTER(0, w, 1) |
} |
|
#define MAX_ALIGN 8 |
static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, |
int w, int prefs, int mrefs, int parity, int mode) |
{ |
uint8_t *dst = dst1; |
uint8_t *prev = prev1; |
uint8_t *cur = cur1; |
uint8_t *next = next1; |
int x; |
uint8_t *prev2 = parity ? prev : cur ; |
uint8_t *next2 = parity ? cur : next; |
|
/* Only edge pixels need to be processed here. A constant value of false |
* for is_not_edge should let the compiler ignore the whole branch. */ |
FILTER(0, 3, 0) |
|
dst = (uint8_t*)dst1 + w - (MAX_ALIGN-1); |
prev = (uint8_t*)prev1 + w - (MAX_ALIGN-1); |
cur = (uint8_t*)cur1 + w - (MAX_ALIGN-1); |
next = (uint8_t*)next1 + w - (MAX_ALIGN-1); |
prev2 = (uint8_t*)(parity ? prev : cur); |
next2 = (uint8_t*)(parity ? cur : next); |
|
FILTER(w - (MAX_ALIGN-1), w - 3, 1) |
FILTER(w - 3, w, 0) |
} |
|
|
static void filter_line_c_16bit(void *dst1, |
void *prev1, void *cur1, void *next1, |
int w, int prefs, int mrefs, int parity, |
int mode) |
{ |
uint16_t *dst = dst1; |
uint16_t *prev = prev1; |
uint16_t *cur = cur1; |
uint16_t *next = next1; |
int x; |
uint16_t *prev2 = parity ? prev : cur ; |
uint16_t *next2 = parity ? cur : next; |
mrefs /= 2; |
prefs /= 2; |
|
FILTER(0, w, 1) |
} |
|
static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, |
int w, int prefs, int mrefs, int parity, int mode) |
{ |
uint16_t *dst = dst1; |
uint16_t *prev = prev1; |
uint16_t *cur = cur1; |
uint16_t *next = next1; |
int x; |
uint16_t *prev2 = parity ? prev : cur ; |
uint16_t *next2 = parity ? cur : next; |
mrefs /= 2; |
prefs /= 2; |
|
FILTER(0, 3, 0) |
|
dst = (uint16_t*)dst1 + w - (MAX_ALIGN/2-1); |
prev = (uint16_t*)prev1 + w - (MAX_ALIGN/2-1); |
cur = (uint16_t*)cur1 + w - (MAX_ALIGN/2-1); |
next = (uint16_t*)next1 + w - (MAX_ALIGN/2-1); |
prev2 = (uint16_t*)(parity ? prev : cur); |
next2 = (uint16_t*)(parity ? cur : next); |
|
FILTER(w - (MAX_ALIGN/2-1), w - 3, 1) |
FILTER(w - 3, w, 0) |
} |
|
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
{ |
YADIFContext *s = ctx->priv; |
ThreadData *td = arg; |
int refs = s->cur->linesize[td->plane]; |
int df = (s->csp->comp[td->plane].depth_minus1 + 8) / 8; |
int pix_3 = 3 * df; |
int slice_start = (td->h * jobnr ) / nb_jobs; |
int slice_end = (td->h * (jobnr+1)) / nb_jobs; |
int y; |
|
/* filtering reads 3 pixels to the left/right; to avoid invalid reads, |
* we need to call the c variant which avoids this for border pixels |
*/ |
for (y = slice_start; y < slice_end; y++) { |
if ((y ^ td->parity) & 1) { |
uint8_t *prev = &s->prev->data[td->plane][y * refs]; |
uint8_t *cur = &s->cur ->data[td->plane][y * refs]; |
uint8_t *next = &s->next->data[td->plane][y * refs]; |
uint8_t *dst = &td->frame->data[td->plane][y * td->frame->linesize[td->plane]]; |
int mode = y == 1 || y + 2 == td->h ? 2 : s->mode; |
s->filter_line(dst + pix_3, prev + pix_3, cur + pix_3, |
next + pix_3, td->w - (3 + MAX_ALIGN/df-1), |
y + 1 < td->h ? refs : -refs, |
y ? -refs : refs, |
td->parity ^ td->tff, mode); |
s->filter_edges(dst, prev, cur, next, td->w, |
y + 1 < td->h ? refs : -refs, |
y ? -refs : refs, |
td->parity ^ td->tff, mode); |
} else { |
memcpy(&td->frame->data[td->plane][y * td->frame->linesize[td->plane]], |
&s->cur->data[td->plane][y * refs], td->w * df); |
} |
} |
return 0; |
} |
|
static void filter(AVFilterContext *ctx, AVFrame *dstpic, |
int parity, int tff) |
{ |
YADIFContext *yadif = ctx->priv; |
ThreadData td = { .frame = dstpic, .parity = parity, .tff = tff }; |
int i; |
|
for (i = 0; i < yadif->csp->nb_components; i++) { |
int w = dstpic->width; |
int h = dstpic->height; |
|
if (i == 1 || i == 2) { |
w = FF_CEIL_RSHIFT(w, yadif->csp->log2_chroma_w); |
h = FF_CEIL_RSHIFT(h, yadif->csp->log2_chroma_h); |
} |
|
|
td.w = w; |
td.h = h; |
td.plane = i; |
|
ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(h, ctx->graph->nb_threads)); |
} |
|
emms_c(); |
} |
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static int return_frame(AVFilterContext *ctx, int is_second) |
{ |
YADIFContext *yadif = ctx->priv; |
AVFilterLink *link = ctx->outputs[0]; |
int tff, ret; |
|
if (yadif->parity == -1) { |
tff = yadif->cur->interlaced_frame ? |
yadif->cur->top_field_first : 1; |
} else { |
tff = yadif->parity ^ 1; |
} |
|
if (is_second) { |
yadif->out = ff_get_video_buffer(link, link->w, link->h); |
if (!yadif->out) |
return AVERROR(ENOMEM); |
|
av_frame_copy_props(yadif->out, yadif->cur); |
yadif->out->interlaced_frame = 0; |
} |
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filter(ctx, yadif->out, tff ^ !is_second, tff); |
|
if (is_second) { |
int64_t cur_pts = yadif->cur->pts; |
int64_t next_pts = yadif->next->pts; |
|
if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) { |
yadif->out->pts = cur_pts + next_pts; |
} else { |
yadif->out->pts = AV_NOPTS_VALUE; |
} |
} |
ret = ff_filter_frame(ctx->outputs[0], yadif->out); |
|
yadif->frame_pending = (yadif->mode&1) && !is_second; |
return ret; |
} |
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static int checkstride(YADIFContext *yadif, const AVFrame *a, const AVFrame *b) |
{ |
int i; |
for (i = 0; i < yadif->csp->nb_components; i++) |
if (a->linesize[i] != b->linesize[i]) |
return 1; |
return 0; |
} |
|
static void fixstride(AVFilterLink *link, AVFrame *f) |
{ |
AVFrame *dst = ff_default_get_video_buffer(link, f->width, f->height); |
if(!dst) |
return; |
av_frame_copy_props(dst, f); |
av_image_copy(dst->data, dst->linesize, |
(const uint8_t **)f->data, f->linesize, |
dst->format, dst->width, dst->height); |
av_frame_unref(f); |
av_frame_move_ref(f, dst); |
av_frame_free(&dst); |
} |
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static int filter_frame(AVFilterLink *link, AVFrame *frame) |
{ |
AVFilterContext *ctx = link->dst; |
YADIFContext *yadif = ctx->priv; |
|
av_assert0(frame); |
|
if (yadif->frame_pending) |
return_frame(ctx, 1); |
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if (yadif->prev) |
av_frame_free(&yadif->prev); |
yadif->prev = yadif->cur; |
yadif->cur = yadif->next; |
yadif->next = frame; |
|
if (!yadif->cur && |
!(yadif->cur = av_frame_clone(yadif->next))) |
return AVERROR(ENOMEM); |
|
if (checkstride(yadif, yadif->next, yadif->cur)) { |
av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n"); |
fixstride(link, yadif->next); |
} |
if (checkstride(yadif, yadif->next, yadif->cur)) |
fixstride(link, yadif->cur); |
if (yadif->prev && checkstride(yadif, yadif->next, yadif->prev)) |
fixstride(link, yadif->prev); |
if (checkstride(yadif, yadif->next, yadif->cur) || (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))) { |
av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n"); |
return -1; |
} |
|
if (!yadif->prev) |
return 0; |
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if ((yadif->deint && !yadif->cur->interlaced_frame) || |
ctx->is_disabled || |
(yadif->deint && !yadif->prev->interlaced_frame && yadif->prev->repeat_pict) || |
(yadif->deint && !yadif->next->interlaced_frame && yadif->next->repeat_pict) |
) { |
yadif->out = av_frame_clone(yadif->cur); |
if (!yadif->out) |
return AVERROR(ENOMEM); |
|
av_frame_free(&yadif->prev); |
if (yadif->out->pts != AV_NOPTS_VALUE) |
yadif->out->pts *= 2; |
return ff_filter_frame(ctx->outputs[0], yadif->out); |
} |
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yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h); |
if (!yadif->out) |
return AVERROR(ENOMEM); |
|
av_frame_copy_props(yadif->out, yadif->cur); |
yadif->out->interlaced_frame = 0; |
|
if (yadif->out->pts != AV_NOPTS_VALUE) |
yadif->out->pts *= 2; |
|
return return_frame(ctx, 0); |
} |
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static int request_frame(AVFilterLink *link) |
{ |
AVFilterContext *ctx = link->src; |
YADIFContext *yadif = ctx->priv; |
|
if (yadif->frame_pending) { |
return_frame(ctx, 1); |
return 0; |
} |
|
do { |
int ret; |
|
if (yadif->eof) |
return AVERROR_EOF; |
|
ret = ff_request_frame(link->src->inputs[0]); |
|
if (ret == AVERROR_EOF && yadif->cur) { |
AVFrame *next = av_frame_clone(yadif->next); |
|
if (!next) |
return AVERROR(ENOMEM); |
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next->pts = yadif->next->pts * 2 - yadif->cur->pts; |
|
filter_frame(link->src->inputs[0], next); |
yadif->eof = 1; |
} else if (ret < 0) { |
return ret; |
} |
} while (!yadif->prev); |
|
return 0; |
} |
|
static av_cold void uninit(AVFilterContext *ctx) |
{ |
YADIFContext *yadif = ctx->priv; |
|
av_frame_free(&yadif->prev); |
av_frame_free(&yadif->cur ); |
av_frame_free(&yadif->next); |
} |
|
static int query_formats(AVFilterContext *ctx) |
{ |
static const enum AVPixelFormat pix_fmts[] = { |
AV_PIX_FMT_YUV420P, |
AV_PIX_FMT_YUV422P, |
AV_PIX_FMT_YUV444P, |
AV_PIX_FMT_YUV410P, |
AV_PIX_FMT_YUV411P, |
AV_PIX_FMT_GRAY8, |
AV_PIX_FMT_YUVJ420P, |
AV_PIX_FMT_YUVJ422P, |
AV_PIX_FMT_YUVJ444P, |
AV_PIX_FMT_GRAY16, |
AV_PIX_FMT_YUV440P, |
AV_PIX_FMT_YUVJ440P, |
AV_PIX_FMT_YUV420P9, |
AV_PIX_FMT_YUV422P9, |
AV_PIX_FMT_YUV444P9, |
AV_PIX_FMT_YUV420P10, |
AV_PIX_FMT_YUV422P10, |
AV_PIX_FMT_YUV444P10, |
AV_PIX_FMT_YUV420P12, |
AV_PIX_FMT_YUV422P12, |
AV_PIX_FMT_YUV444P12, |
AV_PIX_FMT_YUV420P14, |
AV_PIX_FMT_YUV422P14, |
AV_PIX_FMT_YUV444P14, |
AV_PIX_FMT_YUV420P16, |
AV_PIX_FMT_YUV422P16, |
AV_PIX_FMT_YUV444P16, |
AV_PIX_FMT_YUVA420P, |
AV_PIX_FMT_YUVA422P, |
AV_PIX_FMT_YUVA444P, |
AV_PIX_FMT_GBRP, |
AV_PIX_FMT_GBRP9, |
AV_PIX_FMT_GBRP10, |
AV_PIX_FMT_GBRP12, |
AV_PIX_FMT_GBRP14, |
AV_PIX_FMT_GBRP16, |
AV_PIX_FMT_GBRAP, |
AV_PIX_FMT_NONE |
}; |
|
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
if (!fmts_list) |
return AVERROR(ENOMEM); |
return ff_set_common_formats(ctx, fmts_list); |
} |
|
static int config_props(AVFilterLink *link) |
{ |
AVFilterContext *ctx = link->src; |
YADIFContext *s = link->src->priv; |
|
link->time_base.num = link->src->inputs[0]->time_base.num; |
link->time_base.den = link->src->inputs[0]->time_base.den * 2; |
link->w = link->src->inputs[0]->w; |
link->h = link->src->inputs[0]->h; |
|
if(s->mode&1) |
link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1}); |
|
if (link->w < 3 || link->h < 3) { |
av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n"); |
return AVERROR(EINVAL); |
} |
|
s->csp = av_pix_fmt_desc_get(link->format); |
if (s->csp->comp[0].depth_minus1 / 8 == 1) { |
s->filter_line = filter_line_c_16bit; |
s->filter_edges = filter_edges_16bit; |
} else { |
s->filter_line = filter_line_c; |
s->filter_edges = filter_edges; |
} |
|
if (ARCH_X86) |
ff_yadif_init_x86(s); |
|
return 0; |
} |
|
|
#define OFFSET(x) offsetof(YADIFContext, x) |
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
|
#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit } |
|
static const AVOption yadif_options[] = { |
{ "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=YADIF_MODE_SEND_FRAME}, 0, 3, FLAGS, "mode"}, |
CONST("send_frame", "send one frame for each frame", YADIF_MODE_SEND_FRAME, "mode"), |
CONST("send_field", "send one frame for each field", YADIF_MODE_SEND_FIELD, "mode"), |
CONST("send_frame_nospatial", "send one frame for each frame, but skip spatial interlacing check", YADIF_MODE_SEND_FRAME_NOSPATIAL, "mode"), |
CONST("send_field_nospatial", "send one frame for each field, but skip spatial interlacing check", YADIF_MODE_SEND_FIELD_NOSPATIAL, "mode"), |
|
{ "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=YADIF_PARITY_AUTO}, -1, 1, FLAGS, "parity" }, |
CONST("tff", "assume top field first", YADIF_PARITY_TFF, "parity"), |
CONST("bff", "assume bottom field first", YADIF_PARITY_BFF, "parity"), |
CONST("auto", "auto detect parity", YADIF_PARITY_AUTO, "parity"), |
|
{ "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=YADIF_DEINT_ALL}, 0, 1, FLAGS, "deint" }, |
CONST("all", "deinterlace all frames", YADIF_DEINT_ALL, "deint"), |
CONST("interlaced", "only deinterlace frames marked as interlaced", YADIF_DEINT_INTERLACED, "deint"), |
|
{ NULL } |
}; |
|
AVFILTER_DEFINE_CLASS(yadif); |
|
static const AVFilterPad avfilter_vf_yadif_inputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
.filter_frame = filter_frame, |
}, |
{ NULL } |
}; |
|
static const AVFilterPad avfilter_vf_yadif_outputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
.request_frame = request_frame, |
.config_props = config_props, |
}, |
{ NULL } |
}; |
|
AVFilter ff_vf_yadif = { |
.name = "yadif", |
.description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."), |
.priv_size = sizeof(YADIFContext), |
.priv_class = &yadif_class, |
.uninit = uninit, |
.query_formats = query_formats, |
.inputs = avfilter_vf_yadif_inputs, |
.outputs = avfilter_vf_yadif_outputs, |
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
}; |