git.sesse.net Git - ffmpeg/blob - libavcodec/vaapi_vc1.c

   1 /*
   2  * VC-1 HW decode acceleration through VA API
   3  *
   4  * Copyright (C) 2008-2009 Splitted-Desktop Systems
   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 "hwaccel.h"
  24 #include "internal.h"
  25 #include "vaapi_decode.h"
  26 #include "vc1.h"
  27 #include "vc1data.h"
  28
  29 /** Translate FFmpeg MV modes to VA API */
  30 static int get_VAMvModeVC1(enum MVModes mv_mode)
  31 {
  32     switch (mv_mode) {
  33     case MV_PMODE_1MV_HPEL_BILIN: return VAMvMode1MvHalfPelBilinear;
  34     case MV_PMODE_1MV:            return VAMvMode1Mv;
  35     case MV_PMODE_1MV_HPEL:       return VAMvMode1MvHalfPel;
  36     case MV_PMODE_MIXED_MV:       return VAMvModeMixedMv;
  37     case MV_PMODE_INTENSITY_COMP: return VAMvModeIntensityCompensation;
  38     }
  39     return 0;
  40 }
  41
  42 /** Check whether the MVTYPEMB bitplane is present */
  43 static inline int vc1_has_MVTYPEMB_bitplane(const VC1Context *v)
  44 {
  45     if (v->mv_type_is_raw)
  46         return 0;
  47     return v->fcm == PROGRESSIVE &&
  48            (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
  49            (v->mv_mode == MV_PMODE_MIXED_MV ||
  50             (v->mv_mode == MV_PMODE_INTENSITY_COMP &&
  51              v->mv_mode2 == MV_PMODE_MIXED_MV));
  52 }
  53
  54 /** Check whether the SKIPMB bitplane is present */
  55 static inline int vc1_has_SKIPMB_bitplane(const VC1Context *v)
  56 {
  57     if (v->skip_is_raw)
  58         return 0;
  59     return (v->fcm == PROGRESSIVE || v->fcm == ILACE_FRAME) &&
  60            ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
  61             (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type));
  62 }
  63
  64 /** Check whether the DIRECTMB bitplane is present */
  65 static inline int vc1_has_DIRECTMB_bitplane(const VC1Context *v)
  66 {
  67     if (v->dmb_is_raw)
  68         return 0;
  69     return (v->fcm == PROGRESSIVE || v->fcm == ILACE_FRAME) &&
  70            (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
  71 }
  72
  73 /** Check whether the ACPRED bitplane is present */
  74 static inline int vc1_has_ACPRED_bitplane(const VC1Context *v)
  75 {
  76     if (v->acpred_is_raw)
  77         return 0;
  78     return v->profile == PROFILE_ADVANCED &&
  79            (v->s.pict_type == AV_PICTURE_TYPE_I ||
  80             (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
  81 }
  82
  83 /** Check whether the OVERFLAGS bitplane is present */
  84 static inline int vc1_has_OVERFLAGS_bitplane(const VC1Context *v)
  85 {
  86     if (v->overflg_is_raw)
  87         return 0;
  88     return v->profile == PROFILE_ADVANCED &&
  89            (v->s.pict_type == AV_PICTURE_TYPE_I ||
  90             (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type)) &&
  91            (v->overlap && v->pq <= 8) &&
  92            v->condover == CONDOVER_SELECT;
  93 }
  94
  95 /** Check whether the FIELDTX bitplane is present */
  96 static inline int vc1_has_FIELDTX_bitplane(const VC1Context *v)
  97 {
  98     if (v->fieldtx_is_raw)
  99         return 0;
 100     return v->fcm == ILACE_FRAME &&
 101            (v->s.pict_type == AV_PICTURE_TYPE_I ||
 102             (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type));
 103 }
 104
 105 /** Check whether the FORWARDMB bitplane is present */
 106 static inline int vc1_has_FORWARDMB_bitplane(const VC1Context *v)
 107 {
 108     if (v->fmb_is_raw)
 109         return 0;
 110     return v->fcm == ILACE_FIELD &&
 111            (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type);
 112 }
 113
 114 /** Reconstruct bitstream PTYPE (7.1.1.4, index into Table-35) */
 115 static int vc1_get_PTYPE(const VC1Context *v)
 116 {
 117     const MpegEncContext *s = &v->s;
 118     switch (s->pict_type) {
 119     case AV_PICTURE_TYPE_I: return 0;
 120     case AV_PICTURE_TYPE_P: return v->p_frame_skipped ? 4 : 1;
 121     case AV_PICTURE_TYPE_B: return v->bi_type         ? 3 : 2;
 122     }
 123     return 0;
 124 }
 125
 126 /** Reconstruct bitstream FPTYPE (9.1.1.42, index into Table-105) */
 127 static int vc1_get_FPTYPE(const VC1Context *v)
 128 {
 129     const MpegEncContext *s = &v->s;
 130     switch (s->pict_type) {
 131     case AV_PICTURE_TYPE_I: return 0;
 132     case AV_PICTURE_TYPE_P: return 3;
 133     case AV_PICTURE_TYPE_B: return v->bi_type ? 7 : 4;
 134     }
 135     return 0;
 136 }
 137
 138 /** Reconstruct bitstream MVMODE (7.1.1.32) */
 139 static inline VAMvModeVC1 vc1_get_MVMODE(const VC1Context *v)
 140 {
 141     if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
 142         (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type))
 143         return get_VAMvModeVC1(v->mv_mode);
 144     return 0;
 145 }
 146
 147 /** Reconstruct bitstream MVMODE2 (7.1.1.33) */
 148 static inline VAMvModeVC1 vc1_get_MVMODE2(const VC1Context *v)
 149 {
 150     if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
 151         v->mv_mode == MV_PMODE_INTENSITY_COMP)
 152         return get_VAMvModeVC1(v->mv_mode2);
 153     return 0;
 154 }
 155
 156 av_unused static inline int vc1_get_INTCOMPFIELD(const VC1Context *v)
 157 {
 158     if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
 159         v->fcm == ILACE_FIELD &&
 160         v->mv_mode == MV_PMODE_INTENSITY_COMP)
 161         switch (v->intcompfield) {
 162         case 1: return 1;
 163         case 2: return 2;
 164         case 3: return 0;
 165         }
 166     return 0;
 167 }
 168
 169 static inline int vc1_get_LUMSCALE(const VC1Context *v)
 170 {
 171     if (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) {
 172         if ((v->fcm == PROGRESSIVE && v->mv_mode == MV_PMODE_INTENSITY_COMP) ||
 173             (v->fcm == ILACE_FRAME && v->intcomp))
 174             return v->lumscale;
 175         else if (v->fcm == ILACE_FIELD && v->mv_mode == MV_PMODE_INTENSITY_COMP)
 176             switch (v->intcompfield) {
 177             case 1: return v->lumscale;
 178             case 2: return v->lumscale2;
 179             case 3: return v->lumscale;
 180         }
 181     }
 182     return 0;
 183 }
 184
 185 static inline int vc1_get_LUMSHIFT(const VC1Context *v)
 186 {
 187     if (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) {
 188         if ((v->fcm == PROGRESSIVE && v->mv_mode == MV_PMODE_INTENSITY_COMP) ||
 189             (v->fcm == ILACE_FRAME && v->intcomp))
 190             return v->lumshift;
 191         else if (v->fcm == ILACE_FIELD && v->mv_mode == MV_PMODE_INTENSITY_COMP)
 192             switch (v->intcompfield) {
 193             case 1: return v->lumshift;
 194             case 2: return v->lumshift2;
 195             case 3: return v->lumshift;
 196         }
 197     }
 198     return 0;
 199 }
 200
 201 av_unused static inline int vc1_get_LUMSCALE2(const VC1Context *v)
 202 {
 203     if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
 204         v->fcm == ILACE_FIELD &&
 205         v->mv_mode == MV_PMODE_INTENSITY_COMP &&
 206         v->intcompfield == 3)
 207         return v->lumscale2;
 208     return 0;
 209 }
 210
 211 av_unused static inline int vc1_get_LUMSHIFT2(const VC1Context *v)
 212 {
 213     if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
 214         v->fcm == ILACE_FIELD &&
 215         v->mv_mode == MV_PMODE_INTENSITY_COMP &&
 216         v->intcompfield == 3)
 217         return v->lumshift2;
 218     return 0;
 219 }
 220
 221 /** Reconstruct bitstream TTFRM (7.1.1.41, Table-53) */
 222 static inline int vc1_get_TTFRM(const VC1Context *v)
 223 {
 224     switch (v->ttfrm) {
 225     case TT_8X8: return 0;
 226     case TT_8X4: return 1;
 227     case TT_4X8: return 2;
 228     case TT_4X4: return 3;
 229     }
 230     return 0;
 231 }
 232
 233 /** Pack FFmpeg bitplanes into a VABitPlaneBuffer element */
 234 static inline void vc1_pack_bitplanes(uint8_t *bitplane, int n, const uint8_t *ff_bp[3], int x, int y, int stride)
 235 {
 236     const int bitplane_index = n / 2;
 237     const int ff_bp_index = y * stride + x;
 238     uint8_t v = 0;
 239     if (ff_bp[0])
 240         v = ff_bp[0][ff_bp_index];
 241     if (ff_bp[1])
 242         v |= ff_bp[1][ff_bp_index] << 1;
 243     if (ff_bp[2])
 244         v |= ff_bp[2][ff_bp_index] << 2;
 245     bitplane[bitplane_index] = (bitplane[bitplane_index] << 4) | v;
 246 }
 247
 248 static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
 249 {
 250     const VC1Context *v = avctx->priv_data;
 251     const MpegEncContext *s = &v->s;
 252     VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
 253     VAPictureParameterBufferVC1 pic_param;
 254     int err;
 255
 256     pic->output_surface = ff_vaapi_get_surface_id(s->current_picture_ptr->f);
 257
 258     pic_param = (VAPictureParameterBufferVC1) {
 259         .forward_reference_picture         = VA_INVALID_ID,
 260         .backward_reference_picture        = VA_INVALID_ID,
 261         .inloop_decoded_picture            = VA_INVALID_ID,
 262         .sequence_fields.bits = {
 263             .pulldown                      = v->broadcast,
 264             .interlace                     = v->interlace,
 265             .tfcntrflag                    = v->tfcntrflag,
 266             .finterpflag                   = v->finterpflag,
 267             .psf                           = v->psf,
 268             .multires                      = v->multires,
 269             .overlap                       = v->overlap,
 270             .syncmarker                    = v->resync_marker,
 271             .rangered                      = v->rangered,
 272             .max_b_frames                  = s->avctx->max_b_frames,
 273             .profile                       = v->profile,
 274         },
 275         .coded_width                       = s->avctx->coded_width,
 276         .coded_height                      = s->avctx->coded_height,
 277         .entrypoint_fields.bits = {
 278             .broken_link                   = v->broken_link,
 279             .closed_entry                  = v->closed_entry,
 280             .panscan_flag                  = v->panscanflag,
 281             .loopfilter                    = s->loop_filter,
 282         },
 283         .conditional_overlap_flag          = v->condover,
 284         .fast_uvmc_flag                    = v->fastuvmc,
 285         .range_mapping_fields.bits = {
 286             .luma_flag                     = v->range_mapy_flag,
 287             .luma                          = v->range_mapy,
 288             .chroma_flag                   = v->range_mapuv_flag,
 289             .chroma                        = v->range_mapuv,
 290         },
 291         .b_picture_fraction                = v->bfraction_lut_index,
 292         .cbp_table                         = (v->fcm == PROGRESSIVE ? v->cbptab : v->icbptab),
 293         .mb_mode_table                     = v->mbmodetab,
 294         .range_reduction_frame             = v->rangeredfrm,
 295         .rounding_control                  = v->rnd,
 296         .post_processing                   = v->postproc,
 297         .picture_resolution_index          = v->respic,
 298         .picture_fields.bits = {
 299             .picture_type                  = (v->fcm == ILACE_FIELD ? vc1_get_FPTYPE(v) : vc1_get_PTYPE(v)),
 300             .frame_coding_mode             = v->fcm,
 301             .top_field_first               = v->tff,
 302             .is_first_field                = !v->second_field,
 303             .intensity_compensation        = v->intcomp,
 304         },
 305         .luma_scale                        = vc1_get_LUMSCALE(v),
 306         .luma_shift                        = vc1_get_LUMSHIFT(v),
 307 #if VA_CHECK_VERSION(1, 1, 0)
 308         .luma_scale2                       = vc1_get_LUMSCALE2(v),
 309         .luma_shift2                       = vc1_get_LUMSHIFT2(v),
 310         .intensity_compensation_field      = vc1_get_INTCOMPFIELD(v),
 311 #endif
 312         .raw_coding.flags = {
 313             .mv_type_mb                    = v->mv_type_is_raw,
 314             .direct_mb                     = v->dmb_is_raw,
 315             .skip_mb                       = v->skip_is_raw,
 316             .field_tx                      = v->fieldtx_is_raw,
 317             .forward_mb                    = v->fmb_is_raw,
 318             .ac_pred                       = v->acpred_is_raw,
 319             .overflags                     = v->overflg_is_raw,
 320         },
 321         .bitplane_present.flags = {
 322             .bp_mv_type_mb                 = vc1_has_MVTYPEMB_bitplane(v),
 323             .bp_direct_mb                  = vc1_has_DIRECTMB_bitplane(v),
 324             .bp_skip_mb                    = vc1_has_SKIPMB_bitplane(v),
 325             .bp_field_tx                   = vc1_has_FIELDTX_bitplane(v),
 326             .bp_forward_mb                 = vc1_has_FORWARDMB_bitplane(v),
 327             .bp_ac_pred                    = vc1_has_ACPRED_bitplane(v),
 328             .bp_overflags                  = vc1_has_OVERFLAGS_bitplane(v),
 329         },
 330         .reference_fields.bits = {
 331             .reference_distance_flag       = v->refdist_flag,
 332             .reference_distance            = v->refdist,
 333             .num_reference_pictures        = v->numref,
 334             .reference_field_pic_indicator = v->reffield,
 335         },
 336         .mv_fields.bits = {
 337             .mv_mode                       = vc1_get_MVMODE(v),
 338             .mv_mode2                      = vc1_get_MVMODE2(v),
 339             .mv_table                      = (v->fcm == PROGRESSIVE ? s->mv_table_index : v->imvtab),
 340             .two_mv_block_pattern_table    = v->twomvbptab,
 341             .four_mv_switch                = v->fourmvswitch,
 342             .four_mv_block_pattern_table   = v->fourmvbptab,
 343             .extended_mv_flag              = v->extended_mv,
 344             .extended_mv_range             = v->mvrange,
 345             .extended_dmv_flag             = v->extended_dmv,
 346             .extended_dmv_range            = v->dmvrange,
 347         },
 348         .pic_quantizer_fields.bits = {
 349             .dquant                        = v->dquant,
 350             .quantizer                     = v->quantizer_mode,
 351             .half_qp                       = v->halfpq,
 352             .pic_quantizer_scale           = v->pq,
 353             .pic_quantizer_type            = v->pquantizer,
 354             .dq_frame                      = v->dquantfrm,
 355             .dq_profile                    = v->dqprofile,
 356             .dq_sb_edge                    = v->dqprofile == DQPROFILE_SINGLE_EDGE  ? v->dqsbedge : 0,
 357             .dq_db_edge                    = v->dqprofile == DQPROFILE_DOUBLE_EDGES ? v->dqsbedge : 0,
 358             .dq_binary_level               = v->dqbilevel,
 359             .alt_pic_quantizer             = v->altpq,
 360         },
 361         .transform_fields.bits = {
 362             .variable_sized_transform_flag = v->vstransform,
 363             .mb_level_transform_type_flag  = v->ttmbf,
 364             .frame_level_transform_type    = vc1_get_TTFRM(v),
 365             .transform_ac_codingset_idx1   = v->c_ac_table_index,
 366             .transform_ac_codingset_idx2   = v->y_ac_table_index,
 367             .intra_transform_dc_table      = v->s.dc_table_index,
 368         },
 369     };
 370
 371     switch (s->pict_type) {
 372     case AV_PICTURE_TYPE_B:
 373         pic_param.backward_reference_picture = ff_vaapi_get_surface_id(s->next_picture.f);
 374         // fall-through
 375     case AV_PICTURE_TYPE_P:
 376         pic_param.forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
 377         break;
 378     }
 379
 380     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
 381                                             VAPictureParameterBufferType,
 382                                             &pic_param, sizeof(pic_param));
 383     if (err)
 384         goto fail;
 385
 386     if (pic_param.bitplane_present.value & 0x7f) {
 387         uint8_t *bitplane;
 388         const uint8_t *ff_bp[3];
 389         int x, y, n;
 390         size_t size = (s->mb_width * s->mb_height + 1) / 2;
 391
 392         bitplane = av_mallocz(size);
 393         if (!bitplane) {
 394             err = AVERROR(ENOMEM);
 395             goto fail;
 396         }
 397
 398         switch (s->pict_type) {
 399         case AV_PICTURE_TYPE_P:
 400             ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb  ? v->direct_mb_plane    : NULL;
 401             ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb    ? s->mbskip_table       : NULL;
 402             ff_bp[2] = pic_param.bitplane_present.flags.bp_mv_type_mb ? v->mv_type_mb_plane   : NULL;
 403             break;
 404         case AV_PICTURE_TYPE_B:
 405             if (!v->bi_type) {
 406                 ff_bp[0] = pic_param.bitplane_present.flags.bp_direct_mb  ? v->direct_mb_plane  : NULL;
 407                 ff_bp[1] = pic_param.bitplane_present.flags.bp_skip_mb    ? s->mbskip_table     : NULL;
 408                 ff_bp[2] = pic_param.bitplane_present.flags.bp_forward_mb ? v->forward_mb_plane : NULL;
 409                 break;
 410             }
 411             /* fall-through (BI-type) */
 412         case AV_PICTURE_TYPE_I:
 413             ff_bp[0] = pic_param.bitplane_present.flags.bp_field_tx   ? v->fieldtx_plane      : NULL;
 414             ff_bp[1] = pic_param.bitplane_present.flags.bp_ac_pred    ? v->acpred_plane       : NULL;
 415             ff_bp[2] = pic_param.bitplane_present.flags.bp_overflags  ? v->over_flags_plane   : NULL;
 416             break;
 417         default:
 418             ff_bp[0] = NULL;
 419             ff_bp[1] = NULL;
 420             ff_bp[2] = NULL;
 421             break;
 422         }
 423
 424         n = 0;
 425         for (y = 0; y < s->mb_height; y++)
 426             for (x = 0; x < s->mb_width; x++, n++)
 427                 vc1_pack_bitplanes(bitplane, n, ff_bp, x, y, s->mb_stride);
 428         if (n & 1) /* move last nibble to the high order */
 429             bitplane[n/2] <<= 4;
 430
 431         err = ff_vaapi_decode_make_param_buffer(avctx, pic,
 432                                                 VABitPlaneBufferType,
 433                                                 bitplane, size);
 434         av_free(bitplane);
 435         if (err)
 436             goto fail;
 437     }
 438     return 0;
 439
 440 fail:
 441     ff_vaapi_decode_cancel(avctx, pic);
 442     return err;
 443 }
 444
 445 static int vaapi_vc1_end_frame(AVCodecContext *avctx)
 446 {
 447     VC1Context *v = avctx->priv_data;
 448     MpegEncContext *s = &v->s;
 449     VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
 450     int ret;
 451
 452     ret = ff_vaapi_decode_issue(avctx, pic);
 453     if (ret < 0)
 454         goto fail;
 455
 456     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
 457
 458 fail:
 459     return ret;
 460 }
 461
 462 static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
 463 {
 464     const VC1Context *v = avctx->priv_data;
 465     const MpegEncContext *s = &v->s;
 466     VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
 467     VASliceParameterBufferVC1 slice_param;
 468     int err;
 469
 470     /* Current bit buffer is beyond any marker for VC-1, so skip it */
 471     if (avctx->codec_id == AV_CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) {
 472         buffer += 4;
 473         size -= 4;
 474     }
 475
 476     slice_param = (VASliceParameterBufferVC1) {
 477         .slice_data_size         = size,
 478         .slice_data_offset       = 0,
 479         .slice_data_flag         = VA_SLICE_DATA_FLAG_ALL,
 480         .macroblock_offset       = get_bits_count(&s->gb),
 481         .slice_vertical_position = s->mb_y,
 482     };
 483
 484     err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
 485                                             &slice_param, sizeof(slice_param),
 486                                             buffer, size);
 487     if (err < 0) {
 488         ff_vaapi_decode_cancel(avctx, pic);
 489         return err;
 490     }
 491
 492     return 0;
 493 }
 494
 495 #if CONFIG_WMV3_VAAPI_HWACCEL
 496 const AVHWAccel ff_wmv3_vaapi_hwaccel = {
 497     .name                 = "wmv3_vaapi",
 498     .type                 = AVMEDIA_TYPE_VIDEO,
 499     .id                   = AV_CODEC_ID_WMV3,
 500     .pix_fmt              = AV_PIX_FMT_VAAPI,
 501     .start_frame          = &vaapi_vc1_start_frame,
 502     .end_frame            = &vaapi_vc1_end_frame,
 503     .decode_slice         = &vaapi_vc1_decode_slice,
 504     .frame_priv_data_size = sizeof(VAAPIDecodePicture),
 505     .init                 = &ff_vaapi_decode_init,
 506     .uninit               = &ff_vaapi_decode_uninit,
 507     .frame_params         = &ff_vaapi_common_frame_params,
 508     .priv_data_size       = sizeof(VAAPIDecodeContext),
 509     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
 510 };
 511 #endif
 512
 513 const AVHWAccel ff_vc1_vaapi_hwaccel = {
 514     .name                 = "vc1_vaapi",
 515     .type                 = AVMEDIA_TYPE_VIDEO,
 516     .id                   = AV_CODEC_ID_VC1,
 517     .pix_fmt              = AV_PIX_FMT_VAAPI,
 518     .start_frame          = &vaapi_vc1_start_frame,
 519     .end_frame            = &vaapi_vc1_end_frame,
 520     .decode_slice         = &vaapi_vc1_decode_slice,
 521     .frame_priv_data_size = sizeof(VAAPIDecodePicture),
 522     .init                 = &ff_vaapi_decode_init,
 523     .uninit               = &ff_vaapi_decode_uninit,
 524     .frame_params         = &ff_vaapi_common_frame_params,
 525     .priv_data_size       = sizeof(VAAPIDecodeContext),
 526     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
 527 };