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

   1 /*
   2  * HEVC HW decode acceleration through VA API
   3  *
   4  * Copyright (C) 2015 Timo Rothenpieler <timo@rothenpieler.org>
   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 <va/va.h>
  24 #include <va/va_dec_hevc.h>
  25
  26 #include "avcodec.h"
  27 #include "hevcdec.h"
  28 #include "hwconfig.h"
  29 #include "vaapi_decode.h"
  30 #include "vaapi_hevc.h"
  31 #include "h265_profile_level.h"
  32
  33 typedef struct VAAPIDecodePictureHEVC {
  34 #if VA_CHECK_VERSION(1, 2, 0)
  35     VAPictureParameterBufferHEVCExtension pic_param;
  36     VASliceParameterBufferHEVCExtension last_slice_param;
  37 #else
  38     VAPictureParameterBufferHEVC pic_param;
  39     VASliceParameterBufferHEVC last_slice_param;
  40 #endif
  41     const uint8_t *last_buffer;
  42     size_t         last_size;
  43
  44     VAAPIDecodePicture pic;
  45 } VAAPIDecodePictureHEVC;
  46
  47 static void init_vaapi_pic(VAPictureHEVC *va_pic)
  48 {
  49     va_pic->picture_id    = VA_INVALID_ID;
  50     va_pic->flags         = VA_PICTURE_HEVC_INVALID;
  51     va_pic->pic_order_cnt = 0;
  52 }
  53
  54 static void fill_vaapi_pic(VAPictureHEVC *va_pic, const HEVCFrame *pic, int rps_type)
  55 {
  56     va_pic->picture_id    = ff_vaapi_get_surface_id(pic->frame);
  57     va_pic->pic_order_cnt = pic->poc;
  58     va_pic->flags         = rps_type;
  59
  60     if (pic->flags & HEVC_FRAME_FLAG_LONG_REF)
  61         va_pic->flags |= VA_PICTURE_HEVC_LONG_TERM_REFERENCE;
  62
  63     if (pic->frame->interlaced_frame) {
  64         va_pic->flags |= VA_PICTURE_HEVC_FIELD_PIC;
  65
  66         if (!pic->frame->top_field_first)
  67             va_pic->flags |= VA_PICTURE_HEVC_BOTTOM_FIELD;
  68     }
  69 }
  70
  71 static int find_frame_rps_type(const HEVCContext *h, const HEVCFrame *pic)
  72 {
  73     VASurfaceID pic_surf = ff_vaapi_get_surface_id(pic->frame);
  74     int i;
  75
  76     for (i = 0; i < h->rps[ST_CURR_BEF].nb_refs; i++) {
  77         if (pic_surf == ff_vaapi_get_surface_id(h->rps[ST_CURR_BEF].ref[i]->frame))
  78             return VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE;
  79     }
  80
  81     for (i = 0; i < h->rps[ST_CURR_AFT].nb_refs; i++) {
  82         if (pic_surf == ff_vaapi_get_surface_id(h->rps[ST_CURR_AFT].ref[i]->frame))
  83             return VA_PICTURE_HEVC_RPS_ST_CURR_AFTER;
  84     }
  85
  86     for (i = 0; i < h->rps[LT_CURR].nb_refs; i++) {
  87         if (pic_surf == ff_vaapi_get_surface_id(h->rps[LT_CURR].ref[i]->frame))
  88             return VA_PICTURE_HEVC_RPS_LT_CURR;
  89     }
  90
  91     return 0;
  92 }
  93
  94 static void fill_vaapi_reference_frames(const HEVCContext *h, VAPictureParameterBufferHEVC *pp)
  95 {
  96     const HEVCFrame *current_picture = h->ref;
  97     int i, j, rps_type;
  98
  99     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->ReferenceFrames); i++) {
 100         const HEVCFrame *frame = NULL;
 101
 102         while (!frame && j < FF_ARRAY_ELEMS(h->DPB)) {
 103             if (&h->DPB[j] != current_picture && (h->DPB[j].flags & (HEVC_FRAME_FLAG_LONG_REF | HEVC_FRAME_FLAG_SHORT_REF)))
 104                 frame = &h->DPB[j];
 105             j++;
 106         }
 107
 108         init_vaapi_pic(&pp->ReferenceFrames[i]);
 109
 110         if (frame) {
 111             rps_type = find_frame_rps_type(h, frame);
 112             fill_vaapi_pic(&pp->ReferenceFrames[i], frame, rps_type);
 113         }
 114     }
 115 }
 116
 117 static int vaapi_hevc_start_frame(AVCodecContext          *avctx,
 118                                   av_unused const uint8_t *buffer,
 119                                   av_unused uint32_t       size)
 120 {
 121     const HEVCContext        *h = avctx->priv_data;
 122     VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private;
 123     const HEVCSPS          *sps = h->ps.sps;
 124     const HEVCPPS          *pps = h->ps.pps;
 125
 126     const ScalingList *scaling_list = NULL;
 127     int pic_param_size, err, i;
 128
 129     VAPictureParameterBufferHEVC *pic_param = (VAPictureParameterBufferHEVC *)&pic->pic_param;
 130
 131     pic->pic.output_surface = ff_vaapi_get_surface_id(h->ref->frame);
 132
 133     *pic_param = (VAPictureParameterBufferHEVC) {
 134         .pic_width_in_luma_samples                    = sps->width,
 135         .pic_height_in_luma_samples                   = sps->height,
 136         .log2_min_luma_coding_block_size_minus3       = sps->log2_min_cb_size - 3,
 137         .sps_max_dec_pic_buffering_minus1             = sps->temporal_layer[sps->max_sub_layers - 1].max_dec_pic_buffering - 1,
 138         .log2_diff_max_min_luma_coding_block_size     = sps->log2_diff_max_min_coding_block_size,
 139         .log2_min_transform_block_size_minus2         = sps->log2_min_tb_size - 2,
 140         .log2_diff_max_min_transform_block_size       = sps->log2_max_trafo_size  - sps->log2_min_tb_size,
 141         .max_transform_hierarchy_depth_inter          = sps->max_transform_hierarchy_depth_inter,
 142         .max_transform_hierarchy_depth_intra          = sps->max_transform_hierarchy_depth_intra,
 143         .num_short_term_ref_pic_sets                  = sps->nb_st_rps,
 144         .num_long_term_ref_pic_sps                    = sps->num_long_term_ref_pics_sps,
 145         .num_ref_idx_l0_default_active_minus1         = pps->num_ref_idx_l0_default_active - 1,
 146         .num_ref_idx_l1_default_active_minus1         = pps->num_ref_idx_l1_default_active - 1,
 147         .init_qp_minus26                              = pps->pic_init_qp_minus26,
 148         .pps_cb_qp_offset                             = pps->cb_qp_offset,
 149         .pps_cr_qp_offset                             = pps->cr_qp_offset,
 150         .pcm_sample_bit_depth_luma_minus1             = sps->pcm.bit_depth - 1,
 151         .pcm_sample_bit_depth_chroma_minus1           = sps->pcm.bit_depth_chroma - 1,
 152         .log2_min_pcm_luma_coding_block_size_minus3   = sps->pcm.log2_min_pcm_cb_size - 3,
 153         .log2_diff_max_min_pcm_luma_coding_block_size = sps->pcm.log2_max_pcm_cb_size - sps->pcm.log2_min_pcm_cb_size,
 154         .diff_cu_qp_delta_depth                       = pps->diff_cu_qp_delta_depth,
 155         .pps_beta_offset_div2                         = pps->beta_offset / 2,
 156         .pps_tc_offset_div2                           = pps->tc_offset / 2,
 157         .log2_parallel_merge_level_minus2             = pps->log2_parallel_merge_level - 2,
 158         .bit_depth_luma_minus8                        = sps->bit_depth - 8,
 159         .bit_depth_chroma_minus8                      = sps->bit_depth - 8,
 160         .log2_max_pic_order_cnt_lsb_minus4            = sps->log2_max_poc_lsb - 4,
 161         .num_extra_slice_header_bits                  = pps->num_extra_slice_header_bits,
 162         .pic_fields.bits = {
 163             .chroma_format_idc                          = sps->chroma_format_idc,
 164             .tiles_enabled_flag                         = pps->tiles_enabled_flag,
 165             .separate_colour_plane_flag                 = sps->separate_colour_plane_flag,
 166             .pcm_enabled_flag                           = sps->pcm_enabled_flag,
 167             .scaling_list_enabled_flag                  = sps->scaling_list_enable_flag,
 168             .transform_skip_enabled_flag                = pps->transform_skip_enabled_flag,
 169             .amp_enabled_flag                           = sps->amp_enabled_flag,
 170             .strong_intra_smoothing_enabled_flag        = sps->sps_strong_intra_smoothing_enable_flag,
 171             .sign_data_hiding_enabled_flag              = pps->sign_data_hiding_flag,
 172             .constrained_intra_pred_flag                = pps->constrained_intra_pred_flag,
 173             .cu_qp_delta_enabled_flag                   = pps->cu_qp_delta_enabled_flag,
 174             .weighted_pred_flag                         = pps->weighted_pred_flag,
 175             .weighted_bipred_flag                       = pps->weighted_bipred_flag,
 176             .transquant_bypass_enabled_flag             = pps->transquant_bypass_enable_flag,
 177             .entropy_coding_sync_enabled_flag           = pps->entropy_coding_sync_enabled_flag,
 178             .pps_loop_filter_across_slices_enabled_flag = pps->seq_loop_filter_across_slices_enabled_flag,
 179             .loop_filter_across_tiles_enabled_flag      = pps->loop_filter_across_tiles_enabled_flag,
 180             .pcm_loop_filter_disabled_flag              = sps->pcm.loop_filter_disable_flag,
 181         },
 182         .slice_parsing_fields.bits = {
 183             .lists_modification_present_flag             = pps->lists_modification_present_flag,
 184             .long_term_ref_pics_present_flag             = sps->long_term_ref_pics_present_flag,
 185             .sps_temporal_mvp_enabled_flag               = sps->sps_temporal_mvp_enabled_flag,
 186             .cabac_init_present_flag                     = pps->cabac_init_present_flag,
 187             .output_flag_present_flag                    = pps->output_flag_present_flag,
 188             .dependent_slice_segments_enabled_flag       = pps->dependent_slice_segments_enabled_flag,
 189             .pps_slice_chroma_qp_offsets_present_flag    = pps->pic_slice_level_chroma_qp_offsets_present_flag,
 190             .sample_adaptive_offset_enabled_flag         = sps->sao_enabled,
 191             .deblocking_filter_override_enabled_flag     = pps->deblocking_filter_override_enabled_flag,
 192             .pps_disable_deblocking_filter_flag          = pps->disable_dbf,
 193             .slice_segment_header_extension_present_flag = pps->slice_header_extension_present_flag,
 194             .RapPicFlag                                  = IS_IRAP(h),
 195             .IdrPicFlag                                  = IS_IDR(h),
 196             .IntraPicFlag                                = IS_IRAP(h),
 197         },
 198     };
 199
 200     fill_vaapi_pic(&pic_param->CurrPic, h->ref, 0);
 201     fill_vaapi_reference_frames(h, pic_param);
 202
 203     if (pps->tiles_enabled_flag) {
 204         pic_param->num_tile_columns_minus1 = pps->num_tile_columns - 1;
 205         pic_param->num_tile_rows_minus1    = pps->num_tile_rows - 1;
 206
 207         for (i = 0; i < pps->num_tile_columns; i++)
 208             pic_param->column_width_minus1[i] = pps->column_width[i] - 1;
 209
 210         for (i = 0; i < pps->num_tile_rows; i++)
 211             pic_param->row_height_minus1[i] = pps->row_height[i] - 1;
 212     }
 213
 214     if (h->sh.short_term_ref_pic_set_sps_flag == 0 && h->sh.short_term_rps) {
 215         pic_param->st_rps_bits = h->sh.short_term_ref_pic_set_size;
 216     } else {
 217         pic_param->st_rps_bits = 0;
 218     }
 219
 220 #if VA_CHECK_VERSION(1, 2, 0)
 221     if (avctx->profile == FF_PROFILE_HEVC_REXT) {
 222         pic->pic_param.rext = (VAPictureParameterBufferHEVCRext) {
 223             .range_extension_pic_fields.bits  = {
 224                 .transform_skip_rotation_enabled_flag       = sps->transform_skip_rotation_enabled_flag,
 225                 .transform_skip_context_enabled_flag        = sps->transform_skip_context_enabled_flag,
 226                 .implicit_rdpcm_enabled_flag                = sps->implicit_rdpcm_enabled_flag,
 227                 .explicit_rdpcm_enabled_flag                = sps->explicit_rdpcm_enabled_flag,
 228                 .extended_precision_processing_flag         = sps->extended_precision_processing_flag,
 229                 .intra_smoothing_disabled_flag              = sps->intra_smoothing_disabled_flag,
 230                 .high_precision_offsets_enabled_flag        = sps->high_precision_offsets_enabled_flag,
 231                 .persistent_rice_adaptation_enabled_flag    = sps->persistent_rice_adaptation_enabled_flag,
 232                 .cabac_bypass_alignment_enabled_flag        = sps->cabac_bypass_alignment_enabled_flag,
 233                 .cross_component_prediction_enabled_flag    = pps->cross_component_prediction_enabled_flag,
 234                 .chroma_qp_offset_list_enabled_flag         = pps->chroma_qp_offset_list_enabled_flag,
 235             },
 236             .diff_cu_chroma_qp_offset_depth                 = pps->diff_cu_chroma_qp_offset_depth,
 237             .chroma_qp_offset_list_len_minus1               = pps->chroma_qp_offset_list_len_minus1,
 238             .log2_sao_offset_scale_luma                     = pps->log2_sao_offset_scale_luma,
 239             .log2_sao_offset_scale_chroma                   = pps->log2_sao_offset_scale_chroma,
 240             .log2_max_transform_skip_block_size_minus2      = pps->log2_max_transform_skip_block_size - 2,
 241         };
 242
 243         for (i = 0; i < 6; i++)
 244             pic->pic_param.rext.cb_qp_offset_list[i]        = pps->cb_qp_offset_list[i];
 245         for (i = 0; i < 6; i++)
 246             pic->pic_param.rext.cr_qp_offset_list[i]        = pps->cr_qp_offset_list[i];
 247     }
 248 #endif
 249     pic_param_size = avctx->profile == FF_PROFILE_HEVC_REXT ?
 250                             sizeof(pic->pic_param) : sizeof(VAPictureParameterBufferHEVC);
 251
 252     err = ff_vaapi_decode_make_param_buffer(avctx, &pic->pic,
 253                                             VAPictureParameterBufferType,
 254                                             &pic->pic_param, pic_param_size);
 255     if (err < 0)
 256         goto fail;
 257
 258     if (pps->scaling_list_data_present_flag)
 259         scaling_list = &pps->scaling_list;
 260     else if (sps->scaling_list_enable_flag)
 261         scaling_list = &sps->scaling_list;
 262
 263     if (scaling_list) {
 264         VAIQMatrixBufferHEVC iq_matrix;
 265         int j;
 266
 267         for (i = 0; i < 6; i++) {
 268             for (j = 0; j < 16; j++)
 269                 iq_matrix.ScalingList4x4[i][j] = scaling_list->sl[0][i][j];
 270             for (j = 0; j < 64; j++) {
 271                 iq_matrix.ScalingList8x8[i][j]   = scaling_list->sl[1][i][j];
 272                 iq_matrix.ScalingList16x16[i][j] = scaling_list->sl[2][i][j];
 273                 if (i < 2)
 274                     iq_matrix.ScalingList32x32[i][j] = scaling_list->sl[3][i * 3][j];
 275             }
 276             iq_matrix.ScalingListDC16x16[i] = scaling_list->sl_dc[0][i];
 277             if (i < 2)
 278                 iq_matrix.ScalingListDC32x32[i] = scaling_list->sl_dc[1][i * 3];
 279         }
 280
 281         err = ff_vaapi_decode_make_param_buffer(avctx, &pic->pic,
 282                                                 VAIQMatrixBufferType,
 283                                                 &iq_matrix, sizeof(iq_matrix));
 284         if (err < 0)
 285             goto fail;
 286     }
 287
 288     return 0;
 289
 290 fail:
 291     ff_vaapi_decode_cancel(avctx, &pic->pic);
 292     return err;
 293 }
 294
 295 static int vaapi_hevc_end_frame(AVCodecContext *avctx)
 296 {
 297     const HEVCContext        *h = avctx->priv_data;
 298     VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private;
 299     VASliceParameterBufferHEVC *last_slice_param = (VASliceParameterBufferHEVC *)&pic->last_slice_param;
 300     int ret;
 301
 302     int slice_param_size = avctx->profile == FF_PROFILE_HEVC_REXT ?
 303                             sizeof(pic->last_slice_param) : sizeof(VASliceParameterBufferHEVC);
 304
 305     if (pic->last_size) {
 306         last_slice_param->LongSliceFlags.fields.LastSliceOfPic = 1;
 307         ret = ff_vaapi_decode_make_slice_buffer(avctx, &pic->pic,
 308                                                 &pic->last_slice_param, slice_param_size,
 309                                                 pic->last_buffer, pic->last_size);
 310         if (ret < 0)
 311             goto fail;
 312     }
 313
 314
 315     ret = ff_vaapi_decode_issue(avctx, &pic->pic);
 316     if (ret < 0)
 317         goto fail;
 318
 319     return 0;
 320 fail:
 321     ff_vaapi_decode_cancel(avctx, &pic->pic);
 322     return ret;
 323 }
 324
 325 static void fill_pred_weight_table(const HEVCContext *h,
 326                                    const SliceHeader *sh,
 327                                    VASliceParameterBufferHEVC *slice_param)
 328 {
 329     int i;
 330
 331     memset(slice_param->delta_luma_weight_l0,   0, sizeof(slice_param->delta_luma_weight_l0));
 332     memset(slice_param->delta_luma_weight_l1,   0, sizeof(slice_param->delta_luma_weight_l1));
 333     memset(slice_param->luma_offset_l0,         0, sizeof(slice_param->luma_offset_l0));
 334     memset(slice_param->luma_offset_l1,         0, sizeof(slice_param->luma_offset_l1));
 335     memset(slice_param->delta_chroma_weight_l0, 0, sizeof(slice_param->delta_chroma_weight_l0));
 336     memset(slice_param->delta_chroma_weight_l1, 0, sizeof(slice_param->delta_chroma_weight_l1));
 337     memset(slice_param->ChromaOffsetL0,         0, sizeof(slice_param->ChromaOffsetL0));
 338     memset(slice_param->ChromaOffsetL1,         0, sizeof(slice_param->ChromaOffsetL1));
 339
 340     slice_param->delta_chroma_log2_weight_denom = 0;
 341     slice_param->luma_log2_weight_denom         = 0;
 342
 343     if (sh->slice_type == HEVC_SLICE_I ||
 344         (sh->slice_type == HEVC_SLICE_P && !h->ps.pps->weighted_pred_flag) ||
 345         (sh->slice_type == HEVC_SLICE_B && !h->ps.pps->weighted_bipred_flag))
 346         return;
 347
 348     slice_param->luma_log2_weight_denom = sh->luma_log2_weight_denom;
 349
 350     if (h->ps.sps->chroma_format_idc) {
 351         slice_param->delta_chroma_log2_weight_denom = sh->chroma_log2_weight_denom - sh->luma_log2_weight_denom;
 352     }
 353
 354     for (i = 0; i < 15 && i < sh->nb_refs[L0]; i++) {
 355         slice_param->delta_luma_weight_l0[i] = sh->luma_weight_l0[i] - (1 << sh->luma_log2_weight_denom);
 356         slice_param->luma_offset_l0[i] = sh->luma_offset_l0[i];
 357         slice_param->delta_chroma_weight_l0[i][0] = sh->chroma_weight_l0[i][0] - (1 << sh->chroma_log2_weight_denom);
 358         slice_param->delta_chroma_weight_l0[i][1] = sh->chroma_weight_l0[i][1] - (1 << sh->chroma_log2_weight_denom);
 359         slice_param->ChromaOffsetL0[i][0] = sh->chroma_offset_l0[i][0];
 360         slice_param->ChromaOffsetL0[i][1] = sh->chroma_offset_l0[i][1];
 361     }
 362
 363     if (sh->slice_type == HEVC_SLICE_B) {
 364         for (i = 0; i < 15 && i < sh->nb_refs[L1]; i++) {
 365             slice_param->delta_luma_weight_l1[i] = sh->luma_weight_l1[i] - (1 << sh->luma_log2_weight_denom);
 366             slice_param->luma_offset_l1[i] = sh->luma_offset_l1[i];
 367             slice_param->delta_chroma_weight_l1[i][0] = sh->chroma_weight_l1[i][0] - (1 << sh->chroma_log2_weight_denom);
 368             slice_param->delta_chroma_weight_l1[i][1] = sh->chroma_weight_l1[i][1] - (1 << sh->chroma_log2_weight_denom);
 369             slice_param->ChromaOffsetL1[i][0] = sh->chroma_offset_l1[i][0];
 370             slice_param->ChromaOffsetL1[i][1] = sh->chroma_offset_l1[i][1];
 371         }
 372     }
 373 }
 374
 375 static uint8_t get_ref_pic_index(const HEVCContext *h, const HEVCFrame *frame)
 376 {
 377     VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private;
 378     VAPictureParameterBufferHEVC *pp = (VAPictureParameterBufferHEVC *)&pic->pic_param;
 379     uint8_t i;
 380
 381     if (!frame)
 382         return 0xff;
 383
 384     for (i = 0; i < FF_ARRAY_ELEMS(pp->ReferenceFrames); i++) {
 385         VASurfaceID pid = pp->ReferenceFrames[i].picture_id;
 386         int poc = pp->ReferenceFrames[i].pic_order_cnt;
 387         if (pid != VA_INVALID_ID && pid == ff_vaapi_get_surface_id(frame->frame) && poc == frame->poc)
 388             return i;
 389     }
 390
 391     return 0xff;
 392 }
 393
 394 static int vaapi_hevc_decode_slice(AVCodecContext *avctx,
 395                                    const uint8_t  *buffer,
 396                                    uint32_t        size)
 397 {
 398     const HEVCContext        *h = avctx->priv_data;
 399     const SliceHeader       *sh = &h->sh;
 400     VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private;
 401     VASliceParameterBufferHEVC *last_slice_param = (VASliceParameterBufferHEVC *)&pic->last_slice_param;
 402
 403     int slice_param_size = avctx->profile == FF_PROFILE_HEVC_REXT ?
 404                             sizeof(pic->last_slice_param) : sizeof(VASliceParameterBufferHEVC);
 405
 406     int nb_list = (sh->slice_type == HEVC_SLICE_B) ?
 407                   2 : (sh->slice_type == HEVC_SLICE_I ? 0 : 1);
 408
 409     int err, i, list_idx;
 410
 411     if (!sh->first_slice_in_pic_flag) {
 412         err = ff_vaapi_decode_make_slice_buffer(avctx, &pic->pic,
 413                                                 &pic->last_slice_param, slice_param_size,
 414                                                 pic->last_buffer, pic->last_size);
 415         pic->last_buffer = NULL;
 416         pic->last_size   = 0;
 417         if (err) {
 418             ff_vaapi_decode_cancel(avctx, &pic->pic);
 419             return err;
 420         }
 421     }
 422
 423     *last_slice_param = (VASliceParameterBufferHEVC) {
 424         .slice_data_size               = size,
 425         .slice_data_offset             = 0,
 426         .slice_data_flag               = VA_SLICE_DATA_FLAG_ALL,
 427         /* Add 1 to the bits count here to account for the byte_alignment bit, which
 428          * always is at least one bit and not accounted for otherwise. */
 429         .slice_data_byte_offset        = (get_bits_count(&h->HEVClc->gb) + 1 + 7) / 8,
 430         .slice_segment_address         = sh->slice_segment_addr,
 431         .slice_qp_delta                = sh->slice_qp_delta,
 432         .slice_cb_qp_offset            = sh->slice_cb_qp_offset,
 433         .slice_cr_qp_offset            = sh->slice_cr_qp_offset,
 434         .slice_beta_offset_div2        = sh->beta_offset / 2,
 435         .slice_tc_offset_div2          = sh->tc_offset / 2,
 436         .collocated_ref_idx            = sh->slice_temporal_mvp_enabled_flag ? sh->collocated_ref_idx : 0xFF,
 437         .five_minus_max_num_merge_cand = sh->slice_type == HEVC_SLICE_I ? 0 : 5 - sh->max_num_merge_cand,
 438         .num_ref_idx_l0_active_minus1  = sh->nb_refs[L0] ? sh->nb_refs[L0] - 1 : 0,
 439         .num_ref_idx_l1_active_minus1  = sh->nb_refs[L1] ? sh->nb_refs[L1] - 1 : 0,
 440
 441         .LongSliceFlags.fields = {
 442             .dependent_slice_segment_flag                 = sh->dependent_slice_segment_flag,
 443             .slice_type                                   = sh->slice_type,
 444             .color_plane_id                               = sh->colour_plane_id,
 445             .mvd_l1_zero_flag                             = sh->mvd_l1_zero_flag,
 446             .cabac_init_flag                              = sh->cabac_init_flag,
 447             .slice_temporal_mvp_enabled_flag              = sh->slice_temporal_mvp_enabled_flag,
 448             .slice_deblocking_filter_disabled_flag        = sh->disable_deblocking_filter_flag,
 449             .collocated_from_l0_flag                      = sh->collocated_list == L0 ? 1 : 0,
 450             .slice_loop_filter_across_slices_enabled_flag = sh->slice_loop_filter_across_slices_enabled_flag,
 451             .slice_sao_luma_flag                          = sh->slice_sample_adaptive_offset_flag[0],
 452             .slice_sao_chroma_flag                        = sh->slice_sample_adaptive_offset_flag[1],
 453         },
 454     };
 455
 456     memset(last_slice_param->RefPicList, 0xFF, sizeof(last_slice_param->RefPicList));
 457
 458     for (list_idx = 0; list_idx < nb_list; list_idx++) {
 459         RefPicList *rpl = &h->ref->refPicList[list_idx];
 460
 461         for (i = 0; i < rpl->nb_refs; i++)
 462             last_slice_param->RefPicList[list_idx][i] = get_ref_pic_index(h, rpl->ref[i]);
 463     }
 464
 465     fill_pred_weight_table(h, sh, last_slice_param);
 466
 467 #if VA_CHECK_VERSION(1, 2, 0)
 468     if (avctx->profile == FF_PROFILE_HEVC_REXT) {
 469         pic->last_slice_param.rext = (VASliceParameterBufferHEVCRext) {
 470             .slice_ext_flags.bits = {
 471                 .cu_chroma_qp_offset_enabled_flag = sh->cu_chroma_qp_offset_enabled_flag,
 472             },
 473         };
 474
 475         memcpy(pic->last_slice_param.rext.luma_offset_l0, pic->last_slice_param.base.luma_offset_l0,
 476                                                     sizeof(pic->last_slice_param.base.luma_offset_l0));
 477         memcpy(pic->last_slice_param.rext.luma_offset_l1, pic->last_slice_param.base.luma_offset_l1,
 478                                                     sizeof(pic->last_slice_param.base.luma_offset_l1));
 479         memcpy(pic->last_slice_param.rext.ChromaOffsetL0, pic->last_slice_param.base.ChromaOffsetL0,
 480                                                     sizeof(pic->last_slice_param.base.ChromaOffsetL0));
 481         memcpy(pic->last_slice_param.rext.ChromaOffsetL1, pic->last_slice_param.base.ChromaOffsetL1,
 482                                                     sizeof(pic->last_slice_param.base.ChromaOffsetL1));
 483     }
 484 #endif
 485
 486     pic->last_buffer = buffer;
 487     pic->last_size   = size;
 488
 489     return 0;
 490 }
 491
 492 static int ptl_convert(const PTLCommon *general_ptl, H265RawProfileTierLevel *h265_raw_ptl)
 493 {
 494     h265_raw_ptl->general_profile_space = general_ptl->profile_space;
 495     h265_raw_ptl->general_tier_flag     = general_ptl->tier_flag;
 496     h265_raw_ptl->general_profile_idc   = general_ptl->profile_idc;
 497
 498     memcpy(h265_raw_ptl->general_profile_compatibility_flag,
 499                                   general_ptl->profile_compatibility_flag, 32 * sizeof(uint8_t));
 500
 501 #define copy_field(name) h265_raw_ptl->general_ ## name = general_ptl->name
 502     copy_field(progressive_source_flag);
 503     copy_field(interlaced_source_flag);
 504     copy_field(non_packed_constraint_flag);
 505     copy_field(frame_only_constraint_flag);
 506     copy_field(max_12bit_constraint_flag);
 507     copy_field(max_10bit_constraint_flag);
 508     copy_field(max_8bit_constraint_flag);
 509     copy_field(max_422chroma_constraint_flag);
 510     copy_field(max_420chroma_constraint_flag);
 511     copy_field(max_monochrome_constraint_flag);
 512     copy_field(intra_constraint_flag);
 513     copy_field(one_picture_only_constraint_flag);
 514     copy_field(lower_bit_rate_constraint_flag);
 515     copy_field(max_14bit_constraint_flag);
 516     copy_field(inbld_flag);
 517     copy_field(level_idc);
 518 #undef copy_field
 519
 520     return 0;
 521 }
 522
 523 /*
 524  * Find exact va_profile for HEVC Range Extension
 525  */
 526 VAProfile ff_vaapi_parse_hevc_rext_profile(AVCodecContext *avctx)
 527 {
 528     const HEVCContext *h = avctx->priv_data;
 529     const HEVCSPS *sps = h->ps.sps;
 530     const PTL *ptl = &sps->ptl;
 531     const PTLCommon *general_ptl = &ptl->general_ptl;
 532     const H265ProfileDescriptor *profile;
 533     H265RawProfileTierLevel h265_raw_ptl = {0};
 534
 535     /* convert PTLCommon to H265RawProfileTierLevel */
 536     ptl_convert(general_ptl, &h265_raw_ptl);
 537
 538     profile = ff_h265_get_profile(&h265_raw_ptl);
 539     if (!profile) {
 540         av_log(avctx, AV_LOG_WARNING, "HEVC profile is not found.\n");
 541         goto end;
 542     } else {
 543         av_log(avctx, AV_LOG_VERBOSE, "HEVC profile %s is found.\n", profile->name);
 544     }
 545
 546 #if VA_CHECK_VERSION(1, 2, 0)
 547     if (!strcmp(profile->name, "Main 4:2:2 10") ||
 548         !strcmp(profile->name, "Main 4:2:2 10 Intra"))
 549         return VAProfileHEVCMain422_10;
 550     else if (!strcmp(profile->name, "Main 4:4:4") ||
 551              !strcmp(profile->name, "Main 4:4:4 Intra"))
 552         return VAProfileHEVCMain444;
 553     else if (!strcmp(profile->name, "Main 4:4:4 10") ||
 554              !strcmp(profile->name, "Main 4:4:4 10 Intra"))
 555         return VAProfileHEVCMain444_10;
 556 #else
 557     av_log(avctx, AV_LOG_WARNING, "HEVC profile %s is "
 558            "not supported with this VA version.\n", profile->name);
 559 #endif
 560
 561 end:
 562     if (avctx->hwaccel_flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH) {
 563         // Default to selecting Main profile if profile mismatch is allowed
 564         return VAProfileHEVCMain;
 565     } else
 566         return VAProfileNone;
 567 }
 568
 569 const AVHWAccel ff_hevc_vaapi_hwaccel = {
 570     .name                 = "hevc_vaapi",
 571     .type                 = AVMEDIA_TYPE_VIDEO,
 572     .id                   = AV_CODEC_ID_HEVC,
 573     .pix_fmt              = AV_PIX_FMT_VAAPI,
 574     .start_frame          = vaapi_hevc_start_frame,
 575     .end_frame            = vaapi_hevc_end_frame,
 576     .decode_slice         = vaapi_hevc_decode_slice,
 577     .frame_priv_data_size = sizeof(VAAPIDecodePictureHEVC),
 578     .init                 = ff_vaapi_decode_init,
 579     .uninit               = ff_vaapi_decode_uninit,
 580     .frame_params         = ff_vaapi_common_frame_params,
 581     .priv_data_size       = sizeof(VAAPIDecodeContext),
 582     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
 583 };