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  1. /*
  2.  * Video Decode and Presentation API for UNIX (VDPAU) is used for
  3.  * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
  4.  *
  5.  * Copyright (c) 2008 NVIDIA
  6.  *
  7.  * This file is part of FFmpeg.
  8.  *
  9.  * FFmpeg is free software; you can redistribute it and/or
  10.  * modify it under the terms of the GNU Lesser General Public
  11.  * License as published by the Free Software Foundation; either
  12.  * version 2.1 of the License, or (at your option) any later version.
  13.  *
  14.  * FFmpeg is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17.  * Lesser General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU Lesser General Public
  20.  * License along with FFmpeg; if not, write to the Free Software
  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22.  */
  23.  
  24. #include <limits.h>
  25. #include "avcodec.h"
  26. #include "h264.h"
  27. #include "vc1.h"
  28.  
  29. #undef NDEBUG
  30. #include <assert.h>
  31.  
  32. #include "vdpau.h"
  33. #include "vdpau_internal.h"
  34.  
  35. /**
  36.  * @addtogroup VDPAU_Decoding
  37.  *
  38.  * @{
  39.  */
  40.  
  41. AVVDPAUContext *av_alloc_vdpaucontext(void)
  42. {
  43.     return av_mallocz(sizeof(AVVDPAUContext));
  44. }
  45.  
  46. MAKE_ACCESSORS(AVVDPAUContext, vdpau_hwaccel, AVVDPAU_Render2, render2)
  47.  
  48. int ff_vdpau_common_start_frame(Picture *pic,
  49.                                 av_unused const uint8_t *buffer,
  50.                                 av_unused uint32_t size)
  51. {
  52.     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
  53.  
  54.     pic_ctx->bitstream_buffers_allocated = 0;
  55.     pic_ctx->bitstream_buffers_used      = 0;
  56.     pic_ctx->bitstream_buffers           = NULL;
  57.     return 0;
  58. }
  59.  
  60. #if CONFIG_H263_VDPAU_HWACCEL  || CONFIG_MPEG1_VDPAU_HWACCEL || \
  61.     CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
  62.     CONFIG_VC1_VDPAU_HWACCEL   || CONFIG_WMV3_VDPAU_HWACCEL
  63. int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
  64. {
  65.     int res = 0;
  66.     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  67.     MpegEncContext *s = avctx->priv_data;
  68.     Picture *pic = s->current_picture_ptr;
  69.     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
  70.     VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
  71.  
  72.     if (!hwctx->render) {
  73.         res = hwctx->render2(avctx, &pic->f, (void *)&pic_ctx->info,
  74.                              pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
  75.     } else
  76.     hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
  77.                   pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
  78.  
  79.     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  80.     av_freep(&pic_ctx->bitstream_buffers);
  81.  
  82.     return res;
  83. }
  84. #endif
  85.  
  86. int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
  87. {
  88.     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
  89.     VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
  90.  
  91.     buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
  92.                               (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
  93.     if (!buffers)
  94.         return AVERROR(ENOMEM);
  95.  
  96.     pic_ctx->bitstream_buffers = buffers;
  97.     buffers += pic_ctx->bitstream_buffers_used++;
  98.  
  99.     buffers->struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
  100.     buffers->bitstream       = buf;
  101.     buffers->bitstream_bytes = size;
  102.     return 0;
  103. }
  104.  
  105. /* Obsolete non-hwaccel VDPAU support below... */
  106.  
  107. void ff_vdpau_h264_set_reference_frames(H264Context *h)
  108. {
  109.     struct vdpau_render_state *render, *render_ref;
  110.     VdpReferenceFrameH264 *rf, *rf2;
  111.     Picture *pic;
  112.     int i, list, pic_frame_idx;
  113.  
  114.     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
  115.     assert(render);
  116.  
  117.     rf = &render->info.h264.referenceFrames[0];
  118. #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
  119.  
  120.     for (list = 0; list < 2; ++list) {
  121.         Picture **lp = list ? h->long_ref : h->short_ref;
  122.         int ls = list ? 16 : h->short_ref_count;
  123.  
  124.         for (i = 0; i < ls; ++i) {
  125.             pic = lp[i];
  126.             if (!pic || !pic->reference)
  127.                 continue;
  128.             pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
  129.  
  130.             render_ref = (struct vdpau_render_state *)pic->f.data[0];
  131.             assert(render_ref);
  132.  
  133.             rf2 = &render->info.h264.referenceFrames[0];
  134.             while (rf2 != rf) {
  135.                 if (
  136.                     (rf2->surface == render_ref->surface)
  137.                     && (rf2->is_long_term == pic->long_ref)
  138.                     && (rf2->frame_idx == pic_frame_idx)
  139.                 )
  140.                     break;
  141.                 ++rf2;
  142.             }
  143.             if (rf2 != rf) {
  144.                 rf2->top_is_reference    |= (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
  145.                 rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
  146.                 continue;
  147.             }
  148.  
  149.             if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
  150.                 continue;
  151.  
  152.             rf->surface             = render_ref->surface;
  153.             rf->is_long_term        = pic->long_ref;
  154.             rf->top_is_reference    = (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
  155.             rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
  156.             rf->field_order_cnt[0]  = pic->field_poc[0];
  157.             rf->field_order_cnt[1]  = pic->field_poc[1];
  158.             rf->frame_idx           = pic_frame_idx;
  159.  
  160.             ++rf;
  161.         }
  162.     }
  163.  
  164.     for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
  165.         rf->surface             = VDP_INVALID_HANDLE;
  166.         rf->is_long_term        = 0;
  167.         rf->top_is_reference    = 0;
  168.         rf->bottom_is_reference = 0;
  169.         rf->field_order_cnt[0]  = 0;
  170.         rf->field_order_cnt[1]  = 0;
  171.         rf->frame_idx           = 0;
  172.     }
  173. }
  174.  
  175. void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf, int buf_size)
  176. {
  177.     struct vdpau_render_state *render = (struct vdpau_render_state*)data;
  178.     assert(render);
  179.  
  180.     render->bitstream_buffers= av_fast_realloc(
  181.         render->bitstream_buffers,
  182.         &render->bitstream_buffers_allocated,
  183.         sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
  184.     );
  185.  
  186.     render->bitstream_buffers[render->bitstream_buffers_used].struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
  187.     render->bitstream_buffers[render->bitstream_buffers_used].bitstream       = buf;
  188.     render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
  189.     render->bitstream_buffers_used++;
  190. }
  191.  
  192. #if CONFIG_H264_VDPAU_DECODER
  193. void ff_vdpau_h264_picture_start(H264Context *h)
  194. {
  195.     struct vdpau_render_state *render;
  196.     int i;
  197.  
  198.     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
  199.     assert(render);
  200.  
  201.     for (i = 0; i < 2; ++i) {
  202.         int foc = h->cur_pic_ptr->field_poc[i];
  203.         if (foc == INT_MAX)
  204.             foc = 0;
  205.         render->info.h264.field_order_cnt[i] = foc;
  206.     }
  207.  
  208.     render->info.h264.frame_num = h->frame_num;
  209. }
  210.  
  211. void ff_vdpau_h264_picture_complete(H264Context *h)
  212. {
  213.     struct vdpau_render_state *render;
  214.  
  215.     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
  216.     assert(render);
  217.  
  218.     render->info.h264.slice_count = h->slice_num;
  219.     if (render->info.h264.slice_count < 1)
  220.         return;
  221.  
  222.     render->info.h264.is_reference                           = (h->cur_pic_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
  223.     render->info.h264.field_pic_flag                         = h->picture_structure != PICT_FRAME;
  224.     render->info.h264.bottom_field_flag                      = h->picture_structure == PICT_BOTTOM_FIELD;
  225.     render->info.h264.num_ref_frames                         = h->sps.ref_frame_count;
  226.     render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
  227.     render->info.h264.constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
  228.     render->info.h264.weighted_pred_flag                     = h->pps.weighted_pred;
  229.     render->info.h264.weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
  230.     render->info.h264.frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
  231.     render->info.h264.transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
  232.     render->info.h264.chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
  233.     render->info.h264.second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
  234.     render->info.h264.pic_init_qp_minus26                    = h->pps.init_qp - 26;
  235.     render->info.h264.num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
  236.     render->info.h264.num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
  237.     render->info.h264.log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
  238.     render->info.h264.pic_order_cnt_type                     = h->sps.poc_type;
  239.     render->info.h264.log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
  240.     render->info.h264.delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
  241.     render->info.h264.direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
  242.     render->info.h264.entropy_coding_mode_flag               = h->pps.cabac;
  243.     render->info.h264.pic_order_present_flag                 = h->pps.pic_order_present;
  244.     render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
  245.     render->info.h264.redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
  246.     memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
  247.     memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
  248.     memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));
  249.  
  250.     ff_h264_draw_horiz_band(h, 0, h->avctx->height);
  251.     render->bitstream_buffers_used = 0;
  252. }
  253. #endif /* CONFIG_H264_VDPAU_DECODER */
  254.  
  255. #if CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER
  256. void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
  257.                                     int buf_size, int slice_count)
  258. {
  259.     struct vdpau_render_state *render, *last, *next;
  260.     int i;
  261.  
  262.     if (!s->current_picture_ptr) return;
  263.  
  264.     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
  265.     assert(render);
  266.  
  267.     /* fill VdpPictureInfoMPEG1Or2 struct */
  268.     render->info.mpeg.picture_structure          = s->picture_structure;
  269.     render->info.mpeg.picture_coding_type        = s->pict_type;
  270.     render->info.mpeg.intra_dc_precision         = s->intra_dc_precision;
  271.     render->info.mpeg.frame_pred_frame_dct       = s->frame_pred_frame_dct;
  272.     render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
  273.     render->info.mpeg.intra_vlc_format           = s->intra_vlc_format;
  274.     render->info.mpeg.alternate_scan             = s->alternate_scan;
  275.     render->info.mpeg.q_scale_type               = s->q_scale_type;
  276.     render->info.mpeg.top_field_first            = s->top_field_first;
  277.     render->info.mpeg.full_pel_forward_vector    = s->full_pel[0]; // MPEG-1 only.  Set 0 for MPEG-2
  278.     render->info.mpeg.full_pel_backward_vector   = s->full_pel[1]; // MPEG-1 only.  Set 0 for MPEG-2
  279.     render->info.mpeg.f_code[0][0]               = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
  280.     render->info.mpeg.f_code[0][1]               = s->mpeg_f_code[0][1];
  281.     render->info.mpeg.f_code[1][0]               = s->mpeg_f_code[1][0];
  282.     render->info.mpeg.f_code[1][1]               = s->mpeg_f_code[1][1];
  283.     for (i = 0; i < 64; ++i) {
  284.         render->info.mpeg.intra_quantizer_matrix[i]     = s->intra_matrix[i];
  285.         render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
  286.     }
  287.  
  288.     render->info.mpeg.forward_reference          = VDP_INVALID_HANDLE;
  289.     render->info.mpeg.backward_reference         = VDP_INVALID_HANDLE;
  290.  
  291.     switch(s->pict_type){
  292.     case  AV_PICTURE_TYPE_B:
  293.         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
  294.         assert(next);
  295.         render->info.mpeg.backward_reference     = next->surface;
  296.         // no return here, going to set forward prediction
  297.     case  AV_PICTURE_TYPE_P:
  298.         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
  299.         if (!last) // FIXME: Does this test make sense?
  300.             last = render; // predict second field from the first
  301.         render->info.mpeg.forward_reference      = last->surface;
  302.     }
  303.  
  304.     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
  305.  
  306.     render->info.mpeg.slice_count                = slice_count;
  307.  
  308.     if (slice_count)
  309.         ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  310.     render->bitstream_buffers_used               = 0;
  311. }
  312. #endif /* CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER */
  313.  
  314. #if CONFIG_VC1_VDPAU_DECODER
  315. void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
  316.                                  int buf_size)
  317. {
  318.     VC1Context *v = s->avctx->priv_data;
  319.     struct vdpau_render_state *render, *last, *next;
  320.  
  321.     render = (struct vdpau_render_state *)s->current_picture.f.data[0];
  322.     assert(render);
  323.  
  324.     /*  fill LvPictureInfoVC1 struct */
  325.     render->info.vc1.frame_coding_mode  = v->fcm ? v->fcm + 1 : 0;
  326.     render->info.vc1.postprocflag       = v->postprocflag;
  327.     render->info.vc1.pulldown           = v->broadcast;
  328.     render->info.vc1.interlace          = v->interlace;
  329.     render->info.vc1.tfcntrflag         = v->tfcntrflag;
  330.     render->info.vc1.finterpflag        = v->finterpflag;
  331.     render->info.vc1.psf                = v->psf;
  332.     render->info.vc1.dquant             = v->dquant;
  333.     render->info.vc1.panscan_flag       = v->panscanflag;
  334.     render->info.vc1.refdist_flag       = v->refdist_flag;
  335.     render->info.vc1.quantizer          = v->quantizer_mode;
  336.     render->info.vc1.extended_mv        = v->extended_mv;
  337.     render->info.vc1.extended_dmv       = v->extended_dmv;
  338.     render->info.vc1.overlap            = v->overlap;
  339.     render->info.vc1.vstransform        = v->vstransform;
  340.     render->info.vc1.loopfilter         = v->s.loop_filter;
  341.     render->info.vc1.fastuvmc           = v->fastuvmc;
  342.     render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
  343.     render->info.vc1.range_mapy         = v->range_mapy;
  344.     render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
  345.     render->info.vc1.range_mapuv        = v->range_mapuv;
  346.     /* Specific to simple/main profile only */
  347.     render->info.vc1.multires           = v->multires;
  348.     render->info.vc1.syncmarker         = v->s.resync_marker;
  349.     render->info.vc1.rangered           = v->rangered | (v->rangeredfrm << 1);
  350.     render->info.vc1.maxbframes         = v->s.max_b_frames;
  351.  
  352.     render->info.vc1.deblockEnable      = v->postprocflag & 1;
  353.     render->info.vc1.pquant             = v->pq;
  354.  
  355.     render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
  356.     render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
  357.  
  358.     if (v->bi_type)
  359.         render->info.vc1.picture_type = 4;
  360.     else
  361.         render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
  362.  
  363.     switch(s->pict_type){
  364.     case  AV_PICTURE_TYPE_B:
  365.         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
  366.         assert(next);
  367.         render->info.vc1.backward_reference = next->surface;
  368.         // no break here, going to set forward prediction
  369.     case  AV_PICTURE_TYPE_P:
  370.         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
  371.         if (!last) // FIXME: Does this test make sense?
  372.             last = render; // predict second field from the first
  373.         render->info.vc1.forward_reference = last->surface;
  374.     }
  375.  
  376.     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
  377.  
  378.     render->info.vc1.slice_count          = 1;
  379.  
  380.     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  381.     render->bitstream_buffers_used        = 0;
  382. }
  383. #endif /* (CONFIG_VC1_VDPAU_DECODER */
  384.  
  385. #if CONFIG_MPEG4_VDPAU_DECODER
  386. void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
  387.                                    int buf_size)
  388. {
  389.     struct vdpau_render_state *render, *last, *next;
  390.     int i;
  391.  
  392.     if (!s->current_picture_ptr) return;
  393.  
  394.     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
  395.     assert(render);
  396.  
  397.     /* fill VdpPictureInfoMPEG4Part2 struct */
  398.     render->info.mpeg4.trd[0]                            = s->pp_time;
  399.     render->info.mpeg4.trb[0]                            = s->pb_time;
  400.     render->info.mpeg4.trd[1]                            = s->pp_field_time >> 1;
  401.     render->info.mpeg4.trb[1]                            = s->pb_field_time >> 1;
  402.     render->info.mpeg4.vop_time_increment_resolution     = s->avctx->time_base.den;
  403.     render->info.mpeg4.vop_coding_type                   = 0;
  404.     render->info.mpeg4.vop_fcode_forward                 = s->f_code;
  405.     render->info.mpeg4.vop_fcode_backward                = s->b_code;
  406.     render->info.mpeg4.resync_marker_disable             = !s->resync_marker;
  407.     render->info.mpeg4.interlaced                        = !s->progressive_sequence;
  408.     render->info.mpeg4.quant_type                        = s->mpeg_quant;
  409.     render->info.mpeg4.quarter_sample                    = s->quarter_sample;
  410.     render->info.mpeg4.short_video_header                = s->avctx->codec->id == AV_CODEC_ID_H263;
  411.     render->info.mpeg4.rounding_control                  = s->no_rounding;
  412.     render->info.mpeg4.alternate_vertical_scan_flag      = s->alternate_scan;
  413.     render->info.mpeg4.top_field_first                   = s->top_field_first;
  414.     for (i = 0; i < 64; ++i) {
  415.         render->info.mpeg4.intra_quantizer_matrix[i]     = s->intra_matrix[i];
  416.         render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
  417.     }
  418.     render->info.mpeg4.forward_reference                 = VDP_INVALID_HANDLE;
  419.     render->info.mpeg4.backward_reference                = VDP_INVALID_HANDLE;
  420.  
  421.     switch (s->pict_type) {
  422.     case AV_PICTURE_TYPE_B:
  423.         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
  424.         assert(next);
  425.         render->info.mpeg4.backward_reference     = next->surface;
  426.         render->info.mpeg4.vop_coding_type        = 2;
  427.         // no break here, going to set forward prediction
  428.     case AV_PICTURE_TYPE_P:
  429.         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
  430.         assert(last);
  431.         render->info.mpeg4.forward_reference      = last->surface;
  432.     }
  433.  
  434.     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
  435.  
  436.     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  437.     render->bitstream_buffers_used = 0;
  438. }
  439. #endif /* CONFIG_MPEG4_VDPAU_DECODER */
  440.  
  441. /* @}*/
  442.