git.sesse.net Git - ffmpeg/blob - libavcodec/dxva2_vc1.c

   1 /*
   2  * DXVA2 WMV3/VC-1 HW acceleration.
   3  *
   4  * copyright (c) 2010 Laurent Aimar
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include "dxva2_internal.h"
  24 #include "mpegutils.h"
  25 #include "vc1.h"
  26 #include "vc1data.h"
  27
  28 #define MAX_SLICES 1024
  29
  30 struct dxva2_picture_context {
  31     DXVA_PictureParameters pp;
  32     unsigned               slice_count;
  33     DXVA_SliceInfo         slice[MAX_SLICES];
  34
  35     const uint8_t          *bitstream;
  36     unsigned               bitstream_size;
  37 };
  38
  39 static void fill_picture_parameters(AVCodecContext *avctx,
  40                                     AVDXVAContext *ctx, const VC1Context *v,
  41                                     DXVA_PictureParameters *pp)
  42 {
  43     const MpegEncContext *s = &v->s;
  44     const Picture *current_picture = s->current_picture_ptr;
  45     int intcomp = 0;
  46
  47     // determine if intensity compensation is needed
  48     if (s->pict_type == AV_PICTURE_TYPE_P) {
  49       if ((v->fcm == ILACE_FRAME && v->intcomp) || (v->fcm != ILACE_FRAME && v->mv_mode == MV_PMODE_INTENSITY_COMP)) {
  50         if (v->lumscale != 32 || v->lumshift != 0 || (s->picture_structure != PICT_FRAME && (v->lumscale2 != 32 || v->lumshift2 != 0)))
  51           intcomp = 1;
  52       }
  53     }
  54
  55     memset(pp, 0, sizeof(*pp));
  56     pp->wDecodedPictureIndex    =
  57     pp->wDeblockedPictureIndex  = ff_dxva2_get_surface_index(avctx, ctx, current_picture->f);
  58     if (s->pict_type != AV_PICTURE_TYPE_I && !v->bi_type)
  59         pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->last_picture.f);
  60     else
  61         pp->wForwardRefPictureIndex = 0xffff;
  62     if (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)
  63         pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->next_picture.f);
  64     else
  65         pp->wBackwardRefPictureIndex = 0xffff;
  66     if (v->profile == PROFILE_ADVANCED) {
  67         /* It is the cropped width/height -1 of the frame */
  68         pp->wPicWidthInMBminus1 = avctx->width  - 1;
  69         pp->wPicHeightInMBminus1= avctx->height - 1;
  70     } else {
  71         /* It is the coded width/height in macroblock -1 of the frame */
  72         pp->wPicWidthInMBminus1 = s->mb_width  - 1;
  73         pp->wPicHeightInMBminus1= s->mb_height - 1;
  74     }
  75     pp->bMacroblockWidthMinus1  = 15;
  76     pp->bMacroblockHeightMinus1 = 15;
  77     pp->bBlockWidthMinus1       = 7;
  78     pp->bBlockHeightMinus1      = 7;
  79     pp->bBPPminus1              = 7;
  80     if (s->picture_structure & PICT_TOP_FIELD)
  81         pp->bPicStructure      |= 0x01;
  82     if (s->picture_structure & PICT_BOTTOM_FIELD)
  83         pp->bPicStructure      |= 0x02;
  84     pp->bSecondField            = v->interlace && v->fcm == ILACE_FIELD && v->second_field;
  85     pp->bPicIntra               = s->pict_type == AV_PICTURE_TYPE_I || v->bi_type;
  86     pp->bPicBackwardPrediction  = s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
  87     pp->bBidirectionalAveragingMode = (1                                           << 7) |
  88                                       ((DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) != 0) << 6) |
  89                                       ((DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) != 0) << 5) |
  90                                       (intcomp                                     << 4) |
  91                                       ((v->profile == PROFILE_ADVANCED)            << 3);
  92     pp->bMVprecisionAndChromaRelation = ((v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) << 3) |
  93                                         (1                                       << 2) |
  94                                         (0                                       << 1) |
  95                                         (!s->quarter_sample                          );
  96     pp->bChromaFormat           = v->chromaformat;
  97     DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
  98     if (DXVA_CONTEXT_REPORT_ID(avctx, ctx) >= (1 << 16))
  99         DXVA_CONTEXT_REPORT_ID(avctx, ctx) = 1;
 100     pp->bPicScanFixed           = DXVA_CONTEXT_REPORT_ID(avctx, ctx) >> 8;
 101     pp->bPicScanMethod          = DXVA_CONTEXT_REPORT_ID(avctx, ctx) & 0xff;
 102     pp->bPicReadbackRequests    = 0;
 103     pp->bRcontrol               = v->rnd;
 104     pp->bPicSpatialResid8       = (v->panscanflag  << 7) |
 105                                   (v->refdist_flag << 6) |
 106                                   (s->loop_filter  << 5) |
 107                                   (v->fastuvmc     << 4) |
 108                                   (v->extended_mv  << 3) |
 109                                   (v->dquant       << 1) |
 110                                   (v->vstransform      );
 111     pp->bPicOverflowBlocks      = (v->quantizer_mode << 6) |
 112                                   (v->multires       << 5) |
 113                                   (v->resync_marker  << 4) |
 114                                   (v->rangered       << 3) |
 115                                   (s->max_b_frames       );
 116     pp->bPicExtrapolation       = (!v->interlace || v->fcm == PROGRESSIVE) ? 1 : 2;
 117     pp->bPicDeblocked           = ((!pp->bPicBackwardPrediction && v->overlap)        << 6) |
 118                                   ((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) |
 119                                   (s->loop_filter                                     << 1);
 120     pp->bPicDeblockConfined     = (v->postprocflag             << 7) |
 121                                   (v->broadcast                << 6) |
 122                                   (v->interlace                << 5) |
 123                                   (v->tfcntrflag               << 4) |
 124                                   (v->finterpflag              << 3) |
 125                                   ((s->pict_type != AV_PICTURE_TYPE_B) << 2) |
 126                                   (v->psf                      << 1) |
 127                                   (v->extended_dmv                 );
 128     if (s->pict_type != AV_PICTURE_TYPE_I)
 129         pp->bPic4MVallowed      = v->mv_mode == MV_PMODE_MIXED_MV ||
 130                                   (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
 131                                    v->mv_mode2 == MV_PMODE_MIXED_MV);
 132     if (v->profile == PROFILE_ADVANCED)
 133         pp->bPicOBMC            = (v->range_mapy_flag  << 7) |
 134                                   (v->range_mapy       << 4) |
 135                                   (v->range_mapuv_flag << 3) |
 136                                   (v->range_mapuv          );
 137     pp->bPicBinPB               = 0;
 138     pp->bMV_RPS                 = (v->fcm == ILACE_FIELD && pp->bPicBackwardPrediction) ? v->refdist + 9 : 0;
 139     pp->bReservedBits           = v->pq;
 140     if (s->picture_structure == PICT_FRAME) {
 141         if (intcomp) {
 142             pp->wBitstreamFcodes      = v->lumscale;
 143             pp->wBitstreamPCEelements = v->lumshift;
 144         } else {
 145             pp->wBitstreamFcodes      = 32;
 146             pp->wBitstreamPCEelements = 0;
 147         }
 148     } else {
 149         /* Syntax: (top_field_param << 8) | bottom_field_param */
 150         if (intcomp) {
 151             pp->wBitstreamFcodes      = (v->lumscale << 8) | v->lumscale2;
 152             pp->wBitstreamPCEelements = (v->lumshift << 8) | v->lumshift2;
 153         } else {
 154             pp->wBitstreamFcodes      = (32 << 8) | 32;
 155             pp->wBitstreamPCEelements = 0;
 156         }
 157     }
 158     pp->bBitstreamConcealmentNeed   = 0;
 159     pp->bBitstreamConcealmentMethod = 0;
 160 }
 161
 162 static void fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice,
 163                        unsigned position, unsigned size)
 164 {
 165     const VC1Context *v = avctx->priv_data;
 166     const MpegEncContext *s = &v->s;
 167
 168     memset(slice, 0, sizeof(*slice));
 169     slice->wHorizontalPosition = 0;
 170     slice->wVerticalPosition   = s->mb_y;
 171     slice->dwSliceBitsInBuffer = 8 * size;
 172     slice->dwSliceDataLocation = position;
 173     slice->bStartCodeBitOffset = 0;
 174     slice->bReservedBits       = (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type) ? v->bfraction_lut_index + 9 : 0;
 175     slice->wMBbitOffset        = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb) + (avctx->codec_id == AV_CODEC_ID_VC1 ? 32 : 0);
 176     /* XXX We store the index of the first MB and it will be fixed later */
 177     slice->wNumberMBsInSlice   = (s->mb_y >> v->field_mode) * s->mb_width + s->mb_x;
 178     slice->wQuantizerScaleCode = v->pq;
 179     slice->wBadSliceChopping   = 0;
 180 }
 181
 182 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
 183                                              DECODER_BUFFER_DESC *bs,
 184                                              DECODER_BUFFER_DESC *sc)
 185 {
 186     const VC1Context *v = avctx->priv_data;
 187     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
 188     const MpegEncContext *s = &v->s;
 189     struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
 190
 191     static const uint8_t start_code[] = { 0, 0, 1, 0x0d };
 192     const unsigned start_code_size = avctx->codec_id == AV_CODEC_ID_VC1 ? sizeof(start_code) : 0;
 193     const unsigned mb_count = s->mb_width * (s->mb_height >> v->field_mode);
 194     DXVA_SliceInfo *slice = NULL;
 195     void     *dxva_data_ptr;
 196     uint8_t  *dxva_data, *current, *end;
 197     unsigned dxva_size;
 198     unsigned padding;
 199     unsigned i;
 200     unsigned type;
 201
 202 #if CONFIG_D3D11VA
 203     if (ff_dxva2_is_d3d11(avctx)) {
 204         type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
 205         if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
 206                                                        D3D11VA_CONTEXT(ctx)->decoder,
 207                                                        type,
 208                                                        &dxva_size, &dxva_data_ptr)))
 209             return -1;
 210     }
 211 #endif
 212 #if CONFIG_DXVA2
 213     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
 214         type = DXVA2_BitStreamDateBufferType;
 215         if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
 216                                                   type,
 217                                                   &dxva_data_ptr, &dxva_size)))
 218             return -1;
 219     }
 220 #endif
 221
 222     dxva_data = dxva_data_ptr;
 223     current = dxva_data;
 224     end = dxva_data + dxva_size;
 225
 226     for (i = 0; i < ctx_pic->slice_count; i++) {
 227         unsigned position, size;
 228         slice    = &ctx_pic->slice[i];
 229         position = slice->dwSliceDataLocation;
 230         size     = slice->dwSliceBitsInBuffer / 8;
 231         if (start_code_size + size > end - current) {
 232             av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
 233             break;
 234         }
 235         slice->dwSliceDataLocation = current - dxva_data;
 236
 237         if (i < ctx_pic->slice_count - 1)
 238             slice->wNumberMBsInSlice =
 239                 slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;
 240         else
 241             slice->wNumberMBsInSlice =
 242                 mb_count - slice[0].wNumberMBsInSlice;
 243
 244         /* write the appropriate frame, field or slice start code */
 245         if (start_code_size) {
 246             memcpy(current, start_code, start_code_size);
 247             if (i == 0 && v->second_field)
 248                 current[3] = 0x0c;
 249             else if (i > 0)
 250                 current[3] = 0x0b;
 251
 252             current += start_code_size;
 253             slice->dwSliceBitsInBuffer += start_code_size * 8;
 254         }
 255
 256         memcpy(current, &ctx_pic->bitstream[position], size);
 257         current += size;
 258     }
 259     padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
 260     if (slice && padding > 0) {
 261         memset(current, 0, padding);
 262         current += padding;
 263         slice->dwSliceBitsInBuffer += padding * 8;
 264     }
 265
 266 #if CONFIG_D3D11VA
 267     if (ff_dxva2_is_d3d11(avctx))
 268         if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
 269             return -1;
 270 #endif
 271 #if CONFIG_DXVA2
 272     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
 273         if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
 274             return -1;
 275 #endif
 276     if (i < ctx_pic->slice_count)
 277         return -1;
 278
 279 #if CONFIG_D3D11VA
 280     if (ff_dxva2_is_d3d11(avctx)) {
 281         D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
 282         memset(dsc11, 0, sizeof(*dsc11));
 283         dsc11->BufferType           = type;
 284         dsc11->DataSize             = current - dxva_data;
 285         dsc11->NumMBsInBuffer       = mb_count;
 286
 287         type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
 288     }
 289 #endif
 290 #if CONFIG_DXVA2
 291     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
 292         DXVA2_DecodeBufferDesc *dsc2 = bs;
 293         memset(dsc2, 0, sizeof(*dsc2));
 294         dsc2->CompressedBufferType = type;
 295         dsc2->DataSize             = current - dxva_data;
 296         dsc2->NumMBsInBuffer       = mb_count;
 297
 298         type = DXVA2_SliceControlBufferType;
 299     }
 300 #endif
 301
 302     return ff_dxva2_commit_buffer(avctx, ctx, sc,
 303                                   type,
 304                                   ctx_pic->slice,
 305                                   ctx_pic->slice_count * sizeof(*ctx_pic->slice),
 306                                   mb_count);
 307 }
 308
 309 static int dxva2_vc1_start_frame(AVCodecContext *avctx,
 310                                  av_unused const uint8_t *buffer,
 311                                  av_unused uint32_t size)
 312 {
 313     const VC1Context *v = avctx->priv_data;
 314     AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
 315     struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
 316
 317     if (!DXVA_CONTEXT_VALID(avctx, ctx))
 318         return -1;
 319     assert(ctx_pic);
 320
 321     fill_picture_parameters(avctx, ctx, v, &ctx_pic->pp);
 322
 323     ctx_pic->slice_count    = 0;
 324     ctx_pic->bitstream_size = 0;
 325     ctx_pic->bitstream      = NULL;
 326     return 0;
 327 }
 328
 329 static int dxva2_vc1_decode_slice(AVCodecContext *avctx,
 330                                   const uint8_t *buffer,
 331                                   uint32_t size)
 332 {
 333     const VC1Context *v = avctx->priv_data;
 334     const Picture *current_picture = v->s.current_picture_ptr;
 335     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
 336     unsigned position;
 337
 338     if (ctx_pic->slice_count >= MAX_SLICES) {
 339         avpriv_request_sample(avctx, "%d slices in dxva2",
 340                               ctx_pic->slice_count);
 341         return -1;
 342     }
 343
 344     if (avctx->codec_id == AV_CODEC_ID_VC1 &&
 345         size >= 4 && IS_MARKER(AV_RB32(buffer))) {
 346         buffer += 4;
 347         size   -= 4;
 348     }
 349
 350     if (!ctx_pic->bitstream)
 351         ctx_pic->bitstream = buffer;
 352     ctx_pic->bitstream_size += size;
 353
 354     position = buffer - ctx_pic->bitstream;
 355     fill_slice(avctx, &ctx_pic->slice[ctx_pic->slice_count++], position, size);
 356     return 0;
 357 }
 358
 359 static int dxva2_vc1_end_frame(AVCodecContext *avctx)
 360 {
 361     VC1Context *v = avctx->priv_data;
 362     struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
 363     int ret;
 364
 365     if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
 366         return -1;
 367
 368     ret = ff_dxva2_common_end_frame(avctx, v->s.current_picture_ptr->f,
 369                                     &ctx_pic->pp, sizeof(ctx_pic->pp),
 370                                     NULL, 0,
 371                                     commit_bitstream_and_slice_buffer);
 372     if (!ret)
 373         ff_mpeg_draw_horiz_band(&v->s, 0, avctx->height);
 374     return ret;
 375 }
 376
 377 #if CONFIG_WMV3_DXVA2_HWACCEL
 378 const AVHWAccel ff_wmv3_dxva2_hwaccel = {
 379     .name           = "wmv3_dxva2",
 380     .type           = AVMEDIA_TYPE_VIDEO,
 381     .id             = AV_CODEC_ID_WMV3,
 382     .pix_fmt        = AV_PIX_FMT_DXVA2_VLD,
 383     .init           = ff_dxva2_decode_init,
 384     .uninit         = ff_dxva2_decode_uninit,
 385     .start_frame    = dxva2_vc1_start_frame,
 386     .decode_slice   = dxva2_vc1_decode_slice,
 387     .end_frame      = dxva2_vc1_end_frame,
 388     .frame_params   = ff_dxva2_common_frame_params,
 389     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 390     .priv_data_size = sizeof(FFDXVASharedContext),
 391 };
 392 #endif
 393
 394 #if CONFIG_VC1_DXVA2_HWACCEL
 395 const AVHWAccel ff_vc1_dxva2_hwaccel = {
 396     .name           = "vc1_dxva2",
 397     .type           = AVMEDIA_TYPE_VIDEO,
 398     .id             = AV_CODEC_ID_VC1,
 399     .pix_fmt        = AV_PIX_FMT_DXVA2_VLD,
 400     .init           = ff_dxva2_decode_init,
 401     .uninit         = ff_dxva2_decode_uninit,
 402     .start_frame    = dxva2_vc1_start_frame,
 403     .decode_slice   = dxva2_vc1_decode_slice,
 404     .end_frame      = dxva2_vc1_end_frame,
 405     .frame_params   = ff_dxva2_common_frame_params,
 406     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 407     .priv_data_size = sizeof(FFDXVASharedContext),
 408 };
 409 #endif
 410
 411 #if CONFIG_WMV3_D3D11VA_HWACCEL
 412 const AVHWAccel ff_wmv3_d3d11va_hwaccel = {
 413     .name           = "wmv3_d3d11va",
 414     .type           = AVMEDIA_TYPE_VIDEO,
 415     .id             = AV_CODEC_ID_WMV3,
 416     .pix_fmt        = AV_PIX_FMT_D3D11VA_VLD,
 417     .init           = ff_dxva2_decode_init,
 418     .uninit         = ff_dxva2_decode_uninit,
 419     .start_frame    = dxva2_vc1_start_frame,
 420     .decode_slice   = dxva2_vc1_decode_slice,
 421     .end_frame      = dxva2_vc1_end_frame,
 422     .frame_params   = ff_dxva2_common_frame_params,
 423     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 424     .priv_data_size = sizeof(FFDXVASharedContext),
 425 };
 426 #endif
 427
 428 #if CONFIG_WMV3_D3D11VA2_HWACCEL
 429 const AVHWAccel ff_wmv3_d3d11va2_hwaccel = {
 430     .name           = "wmv3_d3d11va2",
 431     .type           = AVMEDIA_TYPE_VIDEO,
 432     .id             = AV_CODEC_ID_WMV3,
 433     .pix_fmt        = AV_PIX_FMT_D3D11,
 434     .init           = ff_dxva2_decode_init,
 435     .uninit         = ff_dxva2_decode_uninit,
 436     .start_frame    = dxva2_vc1_start_frame,
 437     .decode_slice   = dxva2_vc1_decode_slice,
 438     .end_frame      = dxva2_vc1_end_frame,
 439     .frame_params   = ff_dxva2_common_frame_params,
 440     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 441     .priv_data_size = sizeof(FFDXVASharedContext),
 442 };
 443 #endif
 444
 445 #if CONFIG_VC1_D3D11VA_HWACCEL
 446 const AVHWAccel ff_vc1_d3d11va_hwaccel = {
 447     .name           = "vc1_d3d11va",
 448     .type           = AVMEDIA_TYPE_VIDEO,
 449     .id             = AV_CODEC_ID_VC1,
 450     .pix_fmt        = AV_PIX_FMT_D3D11VA_VLD,
 451     .init           = ff_dxva2_decode_init,
 452     .uninit         = ff_dxva2_decode_uninit,
 453     .start_frame    = dxva2_vc1_start_frame,
 454     .decode_slice   = dxva2_vc1_decode_slice,
 455     .end_frame      = dxva2_vc1_end_frame,
 456     .frame_params   = ff_dxva2_common_frame_params,
 457     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 458     .priv_data_size = sizeof(FFDXVASharedContext),
 459 };
 460 #endif
 461
 462 #if CONFIG_VC1_D3D11VA2_HWACCEL
 463 const AVHWAccel ff_vc1_d3d11va2_hwaccel = {
 464     .name           = "vc1_d3d11va2",
 465     .type           = AVMEDIA_TYPE_VIDEO,
 466     .id             = AV_CODEC_ID_VC1,
 467     .pix_fmt        = AV_PIX_FMT_D3D11,
 468     .init           = ff_dxva2_decode_init,
 469     .uninit         = ff_dxva2_decode_uninit,
 470     .start_frame    = dxva2_vc1_start_frame,
 471     .decode_slice   = dxva2_vc1_decode_slice,
 472     .end_frame      = dxva2_vc1_end_frame,
 473     .frame_params   = ff_dxva2_common_frame_params,
 474     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
 475     .priv_data_size = sizeof(FFDXVASharedContext),
 476 };
 477 #endif