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   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include <string.h>
  20
  21 #include <va/va.h>
  22 #include <va/va_enc_hevc.h>
  23
  24 #include "libavutil/avassert.h"
  25 #include "libavutil/common.h"
  26 #include "libavutil/pixdesc.h"
  27 #include "libavutil/opt.h"
  28 #include "libavutil/mastering_display_metadata.h"
  29
  30 #include "avcodec.h"
  31 #include "cbs.h"
  32 #include "cbs_h265.h"
  33 #include "h265_profile_level.h"
  34 #include "hevc.h"
  35 #include "hevc_sei.h"
  36 #include "internal.h"
  37 #include "put_bits.h"
  38 #include "vaapi_encode.h"
  39
  40 enum {
  41     SEI_MASTERING_DISPLAY       = 0x08,
  42     SEI_CONTENT_LIGHT_LEVEL     = 0x10,
  43 };
  44
  45 typedef struct VAAPIEncodeH265Picture {
  46     int pic_order_cnt;
  47
  48     int64_t last_idr_frame;
  49
  50     int slice_nal_unit;
  51     int slice_type;
  52     int pic_type;
  53 } VAAPIEncodeH265Picture;
  54
  55 typedef struct VAAPIEncodeH265Context {
  56     VAAPIEncodeContext common;
  57
  58     // User options.
  59     int qp;
  60     int aud;
  61     int profile;
  62     int tier;
  63     int level;
  64     int sei;
  65
  66     // Derived settings.
  67     int fixed_qp_idr;
  68     int fixed_qp_p;
  69     int fixed_qp_b;
  70
  71     // Writer structures.
  72     H265RawAUD   raw_aud;
  73     H265RawVPS   raw_vps;
  74     H265RawSPS   raw_sps;
  75     H265RawPPS   raw_pps;
  76     H265RawSEI   raw_sei;
  77     H265RawSlice raw_slice;
  78
  79     H265RawSEIMasteringDisplayColourVolume sei_mastering_display;
  80     H265RawSEIContentLightLevelInfo        sei_content_light_level;
  81
  82     CodedBitstreamContext *cbc;
  83     CodedBitstreamFragment current_access_unit;
  84     int aud_needed;
  85     int sei_needed;
  86 } VAAPIEncodeH265Context;
  87
  88
  89 static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,
  90                                                char *data, size_t *data_len,
  91                                                CodedBitstreamFragment *au)
  92 {
  93     VAAPIEncodeH265Context *priv = avctx->priv_data;
  94     int err;
  95
  96     err = ff_cbs_write_fragment_data(priv->cbc, au);
  97     if (err < 0) {
  98         av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
  99         return err;
 100     }
 101
 102     if (*data_len < 8 * au->data_size - au->data_bit_padding) {
 103         av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
 104                "%zu < %zu.\n", *data_len,
 105                8 * au->data_size - au->data_bit_padding);
 106         return AVERROR(ENOSPC);
 107     }
 108
 109     memcpy(data, au->data, au->data_size);
 110     *data_len = 8 * au->data_size - au->data_bit_padding;
 111
 112     return 0;
 113 }
 114
 115 static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,
 116                                      CodedBitstreamFragment *au,
 117                                      void *nal_unit)
 118 {
 119     VAAPIEncodeH265Context *priv = avctx->priv_data;
 120     H265RawNALUnitHeader *header = nal_unit;
 121     int err;
 122
 123     err = ff_cbs_insert_unit_content(priv->cbc, au, -1,
 124                                      header->nal_unit_type, nal_unit, NULL);
 125     if (err < 0) {
 126         av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
 127                "type = %d.\n", header->nal_unit_type);
 128         return err;
 129     }
 130
 131     return 0;
 132 }
 133
 134 static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,
 135                                                    char *data, size_t *data_len)
 136 {
 137     VAAPIEncodeH265Context *priv = avctx->priv_data;
 138     CodedBitstreamFragment   *au = &priv->current_access_unit;
 139     int err;
 140
 141     if (priv->aud_needed) {
 142         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
 143         if (err < 0)
 144             goto fail;
 145         priv->aud_needed = 0;
 146     }
 147
 148     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_vps);
 149     if (err < 0)
 150         goto fail;
 151
 152     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_sps);
 153     if (err < 0)
 154         goto fail;
 155
 156     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_pps);
 157     if (err < 0)
 158         goto fail;
 159
 160     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 161 fail:
 162     ff_cbs_fragment_reset(priv->cbc, au);
 163     return err;
 164 }
 165
 166 static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,
 167                                                 VAAPIEncodePicture *pic,
 168                                                 VAAPIEncodeSlice *slice,
 169                                                 char *data, size_t *data_len)
 170 {
 171     VAAPIEncodeH265Context *priv = avctx->priv_data;
 172     CodedBitstreamFragment   *au = &priv->current_access_unit;
 173     int err;
 174
 175     if (priv->aud_needed) {
 176         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
 177         if (err < 0)
 178             goto fail;
 179         priv->aud_needed = 0;
 180     }
 181
 182     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_slice);
 183     if (err < 0)
 184         goto fail;
 185
 186     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 187 fail:
 188     ff_cbs_fragment_reset(priv->cbc, au);
 189     return err;
 190 }
 191
 192 static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,
 193                                                 VAAPIEncodePicture *pic,
 194                                                 int index, int *type,
 195                                                 char *data, size_t *data_len)
 196 {
 197     VAAPIEncodeH265Context *priv = avctx->priv_data;
 198     CodedBitstreamFragment   *au = &priv->current_access_unit;
 199     int err, i;
 200
 201     if (priv->sei_needed) {
 202         H265RawSEI *sei = &priv->raw_sei;
 203
 204         if (priv->aud_needed) {
 205             err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud);
 206             if (err < 0)
 207                 goto fail;
 208             priv->aud_needed = 0;
 209         }
 210
 211         *sei = (H265RawSEI) {
 212             .nal_unit_header = {
 213                 .nal_unit_type         = HEVC_NAL_SEI_PREFIX,
 214                 .nuh_layer_id          = 0,
 215                 .nuh_temporal_id_plus1 = 1,
 216             },
 217         };
 218
 219         i = 0;
 220
 221         if (priv->sei_needed & SEI_MASTERING_DISPLAY) {
 222             sei->payload[i].payload_type = HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO;
 223             sei->payload[i].payload.mastering_display = priv->sei_mastering_display;
 224             ++i;
 225         }
 226
 227         if (priv->sei_needed & SEI_CONTENT_LIGHT_LEVEL) {
 228             sei->payload[i].payload_type = HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO;
 229             sei->payload[i].payload.content_light_level = priv->sei_content_light_level;
 230             ++i;
 231         }
 232
 233         sei->payload_count = i;
 234         av_assert0(sei->payload_count > 0);
 235
 236         err = vaapi_encode_h265_add_nal(avctx, au, sei);
 237         if (err < 0)
 238             goto fail;
 239         priv->sei_needed = 0;
 240
 241         err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 242         if (err < 0)
 243             goto fail;
 244
 245         ff_cbs_fragment_reset(priv->cbc, au);
 246
 247         *type = VAEncPackedHeaderRawData;
 248         return 0;
 249     } else {
 250         return AVERROR_EOF;
 251     }
 252
 253 fail:
 254     ff_cbs_fragment_reset(priv->cbc, au);
 255     return err;
 256 }
 257
 258 static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
 259 {
 260     VAAPIEncodeContext                *ctx = avctx->priv_data;
 261     VAAPIEncodeH265Context           *priv = avctx->priv_data;
 262     H265RawVPS                        *vps = &priv->raw_vps;
 263     H265RawSPS                        *sps = &priv->raw_sps;
 264     H265RawPPS                        *pps = &priv->raw_pps;
 265     H265RawProfileTierLevel           *ptl = &vps->profile_tier_level;
 266     H265RawVUI                        *vui = &sps->vui;
 267     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
 268     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;
 269     const AVPixFmtDescriptor *desc;
 270     int chroma_format, bit_depth;
 271     int i;
 272
 273     memset(vps, 0, sizeof(*vps));
 274     memset(sps, 0, sizeof(*sps));
 275     memset(pps, 0, sizeof(*pps));
 276
 277
 278     desc = av_pix_fmt_desc_get(priv->common.input_frames->sw_format);
 279     av_assert0(desc);
 280     if (desc->nb_components == 1) {
 281         chroma_format = 0;
 282     } else {
 283         if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1) {
 284             chroma_format = 1;
 285         } else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0) {
 286             chroma_format = 2;
 287         } else if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) {
 288             chroma_format = 3;
 289         } else {
 290             av_log(avctx, AV_LOG_ERROR, "Chroma format of input pixel format "
 291                    "%s is not supported.\n", desc->name);
 292             return AVERROR(EINVAL);
 293         }
 294     }
 295     bit_depth = desc->comp[0].depth;
 296
 297
 298     // VPS
 299
 300     vps->nal_unit_header = (H265RawNALUnitHeader) {
 301         .nal_unit_type         = HEVC_NAL_VPS,
 302         .nuh_layer_id          = 0,
 303         .nuh_temporal_id_plus1 = 1,
 304     };
 305
 306     vps->vps_video_parameter_set_id = 0;
 307
 308     vps->vps_base_layer_internal_flag  = 1;
 309     vps->vps_base_layer_available_flag = 1;
 310     vps->vps_max_layers_minus1         = 0;
 311     vps->vps_max_sub_layers_minus1     = 0;
 312     vps->vps_temporal_id_nesting_flag  = 1;
 313
 314     ptl->general_profile_space = 0;
 315     ptl->general_profile_idc   = avctx->profile;
 316     ptl->general_tier_flag     = priv->tier;
 317
 318     if (chroma_format == 1) {
 319         ptl->general_profile_compatibility_flag[1] = bit_depth ==  8;
 320         ptl->general_profile_compatibility_flag[2] = bit_depth <= 10;
 321     }
 322     ptl->general_profile_compatibility_flag[4] = 1;
 323
 324     ptl->general_progressive_source_flag    = 1;
 325     ptl->general_interlaced_source_flag     = 0;
 326     ptl->general_non_packed_constraint_flag = 1;
 327     ptl->general_frame_only_constraint_flag = 1;
 328
 329     ptl->general_max_12bit_constraint_flag = bit_depth <= 12;
 330     ptl->general_max_10bit_constraint_flag = bit_depth <= 10;
 331     ptl->general_max_8bit_constraint_flag  = bit_depth ==  8;
 332
 333     ptl->general_max_422chroma_constraint_flag  = chroma_format <= 2;
 334     ptl->general_max_420chroma_constraint_flag  = chroma_format <= 1;
 335     ptl->general_max_monochrome_constraint_flag = chroma_format == 0;
 336
 337     ptl->general_intra_constraint_flag = ctx->gop_size == 1;
 338
 339     ptl->general_lower_bit_rate_constraint_flag = 1;
 340
 341     if (avctx->level != FF_LEVEL_UNKNOWN) {
 342         ptl->general_level_idc = avctx->level;
 343     } else {
 344         const H265LevelDescriptor *level;
 345
 346         level = ff_h265_guess_level(ptl, avctx->bit_rate,
 347                                     ctx->surface_width, ctx->surface_height,
 348                                     ctx->nb_slices, 1, 1,
 349                                     (ctx->b_per_p > 0) + 1);
 350         if (level) {
 351             av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);
 352             ptl->general_level_idc = level->level_idc;
 353         } else {
 354             av_log(avctx, AV_LOG_VERBOSE, "Stream will not conform to "
 355                    "any normal level; using level 8.5.\n");
 356             ptl->general_level_idc = 255;
 357             // The tier flag must be set in level 8.5.
 358             ptl->general_tier_flag = 1;
 359         }
 360     }
 361
 362     vps->vps_sub_layer_ordering_info_present_flag = 0;
 363     vps->vps_max_dec_pic_buffering_minus1[0]      = ctx->max_b_depth + 1;
 364     vps->vps_max_num_reorder_pics[0]              = ctx->max_b_depth;
 365     vps->vps_max_latency_increase_plus1[0]        = 0;
 366
 367     vps->vps_max_layer_id             = 0;
 368     vps->vps_num_layer_sets_minus1    = 0;
 369     vps->layer_id_included_flag[0][0] = 1;
 370
 371     vps->vps_timing_info_present_flag = 1;
 372     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 373         vps->vps_num_units_in_tick  = avctx->framerate.den;
 374         vps->vps_time_scale         = avctx->framerate.num;
 375         vps->vps_poc_proportional_to_timing_flag = 1;
 376         vps->vps_num_ticks_poc_diff_one_minus1   = 0;
 377     } else {
 378         vps->vps_num_units_in_tick  = avctx->time_base.num;
 379         vps->vps_time_scale         = avctx->time_base.den;
 380         vps->vps_poc_proportional_to_timing_flag = 0;
 381     }
 382     vps->vps_num_hrd_parameters = 0;
 383
 384
 385     // SPS
 386
 387     sps->nal_unit_header = (H265RawNALUnitHeader) {
 388         .nal_unit_type         = HEVC_NAL_SPS,
 389         .nuh_layer_id          = 0,
 390         .nuh_temporal_id_plus1 = 1,
 391     };
 392
 393     sps->sps_video_parameter_set_id = vps->vps_video_parameter_set_id;
 394
 395     sps->sps_max_sub_layers_minus1    = vps->vps_max_sub_layers_minus1;
 396     sps->sps_temporal_id_nesting_flag = vps->vps_temporal_id_nesting_flag;
 397
 398     sps->profile_tier_level = vps->profile_tier_level;
 399
 400     sps->sps_seq_parameter_set_id = 0;
 401
 402     sps->chroma_format_idc          = chroma_format;
 403     sps->separate_colour_plane_flag = 0;
 404
 405     sps->pic_width_in_luma_samples  = ctx->surface_width;
 406     sps->pic_height_in_luma_samples = ctx->surface_height;
 407
 408     if (avctx->width  != ctx->surface_width ||
 409         avctx->height != ctx->surface_height) {
 410         sps->conformance_window_flag = 1;
 411         sps->conf_win_left_offset   = 0;
 412         sps->conf_win_right_offset  =
 413             (ctx->surface_width - avctx->width) / 2;
 414         sps->conf_win_top_offset    = 0;
 415         sps->conf_win_bottom_offset =
 416             (ctx->surface_height - avctx->height) / 2;
 417     } else {
 418         sps->conformance_window_flag = 0;
 419     }
 420
 421     sps->bit_depth_luma_minus8   = bit_depth - 8;
 422     sps->bit_depth_chroma_minus8 = bit_depth - 8;
 423
 424     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;
 425
 426     sps->sps_sub_layer_ordering_info_present_flag =
 427         vps->vps_sub_layer_ordering_info_present_flag;
 428     for (i = 0; i <= sps->sps_max_sub_layers_minus1; i++) {
 429         sps->sps_max_dec_pic_buffering_minus1[i] =
 430             vps->vps_max_dec_pic_buffering_minus1[i];
 431         sps->sps_max_num_reorder_pics[i] =
 432             vps->vps_max_num_reorder_pics[i];
 433         sps->sps_max_latency_increase_plus1[i] =
 434             vps->vps_max_latency_increase_plus1[i];
 435     }
 436
 437     // These have to come from the capabilities of the encoder.  We have no
 438     // way to query them, so just hardcode parameters which work on the Intel
 439     // driver.
 440     // CTB size from 8x8 to 32x32.
 441     sps->log2_min_luma_coding_block_size_minus3   = 0;
 442     sps->log2_diff_max_min_luma_coding_block_size = 2;
 443     // Transform size from 4x4 to 32x32.
 444     sps->log2_min_luma_transform_block_size_minus2   = 0;
 445     sps->log2_diff_max_min_luma_transform_block_size = 3;
 446     // Full transform hierarchy allowed (2-5).
 447     sps->max_transform_hierarchy_depth_inter = 3;
 448     sps->max_transform_hierarchy_depth_intra = 3;
 449     // AMP works.
 450     sps->amp_enabled_flag = 1;
 451     // SAO and temporal MVP do not work.
 452     sps->sample_adaptive_offset_enabled_flag = 0;
 453     sps->sps_temporal_mvp_enabled_flag       = 0;
 454
 455     sps->pcm_enabled_flag = 0;
 456
 457     // STRPSs should ideally be here rather than defined individually in
 458     // each slice, but the structure isn't completely fixed so for now
 459     // don't bother.
 460     sps->num_short_term_ref_pic_sets     = 0;
 461     sps->long_term_ref_pics_present_flag = 0;
 462
 463     sps->vui_parameters_present_flag = 1;
 464
 465     if (avctx->sample_aspect_ratio.num != 0 &&
 466         avctx->sample_aspect_ratio.den != 0) {
 467         static const AVRational sar_idc[] = {
 468             {   0,  0 },
 469             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
 470             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
 471             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
 472             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
 473         };
 474         int num, den, i;
 475         av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
 476                   avctx->sample_aspect_ratio.den, 65535);
 477         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
 478             if (num == sar_idc[i].num &&
 479                 den == sar_idc[i].den) {
 480                 vui->aspect_ratio_idc = i;
 481                 break;
 482             }
 483         }
 484         if (i >= FF_ARRAY_ELEMS(sar_idc)) {
 485             vui->aspect_ratio_idc = 255;
 486             vui->sar_width  = num;
 487             vui->sar_height = den;
 488         }
 489         vui->aspect_ratio_info_present_flag = 1;
 490     }
 491
 492     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
 493         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 494         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 495         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 496         vui->video_signal_type_present_flag = 1;
 497         vui->video_format      = 5; // Unspecified.
 498         vui->video_full_range_flag =
 499             avctx->color_range == AVCOL_RANGE_JPEG;
 500
 501         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 502             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 503             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 504             vui->colour_description_present_flag = 1;
 505             vui->colour_primaries         = avctx->color_primaries;
 506             vui->transfer_characteristics = avctx->color_trc;
 507             vui->matrix_coefficients      = avctx->colorspace;
 508         }
 509     } else {
 510         vui->video_format             = 5;
 511         vui->video_full_range_flag    = 0;
 512         vui->colour_primaries         = avctx->color_primaries;
 513         vui->transfer_characteristics = avctx->color_trc;
 514         vui->matrix_coefficients      = avctx->colorspace;
 515     }
 516
 517     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
 518         vui->chroma_loc_info_present_flag = 1;
 519         vui->chroma_sample_loc_type_top_field    =
 520         vui->chroma_sample_loc_type_bottom_field =
 521             avctx->chroma_sample_location - 1;
 522     }
 523
 524     vui->vui_timing_info_present_flag        = 1;
 525     vui->vui_num_units_in_tick               = vps->vps_num_units_in_tick;
 526     vui->vui_time_scale                      = vps->vps_time_scale;
 527     vui->vui_poc_proportional_to_timing_flag = vps->vps_poc_proportional_to_timing_flag;
 528     vui->vui_num_ticks_poc_diff_one_minus1   = vps->vps_num_ticks_poc_diff_one_minus1;
 529     vui->vui_hrd_parameters_present_flag     = 0;
 530
 531     vui->bitstream_restriction_flag    = 1;
 532     vui->motion_vectors_over_pic_boundaries_flag = 1;
 533     vui->restricted_ref_pic_lists_flag = 1;
 534     vui->max_bytes_per_pic_denom       = 0;
 535     vui->max_bits_per_min_cu_denom     = 0;
 536     vui->log2_max_mv_length_horizontal = 15;
 537     vui->log2_max_mv_length_vertical   = 15;
 538
 539
 540     // PPS
 541
 542     pps->nal_unit_header = (H265RawNALUnitHeader) {
 543         .nal_unit_type         = HEVC_NAL_PPS,
 544         .nuh_layer_id          = 0,
 545         .nuh_temporal_id_plus1 = 1,
 546     };
 547
 548     pps->pps_pic_parameter_set_id = 0;
 549     pps->pps_seq_parameter_set_id = sps->sps_seq_parameter_set_id;
 550
 551     pps->num_ref_idx_l0_default_active_minus1 = 0;
 552     pps->num_ref_idx_l1_default_active_minus1 = 0;
 553
 554     pps->init_qp_minus26 = priv->fixed_qp_idr - 26;
 555
 556     pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP);
 557     pps->diff_cu_qp_delta_depth   = 0;
 558
 559     pps->pps_loop_filter_across_slices_enabled_flag = 1;
 560
 561
 562     // Fill VAAPI parameter buffers.
 563
 564     *vseq = (VAEncSequenceParameterBufferHEVC) {
 565         .general_profile_idc = vps->profile_tier_level.general_profile_idc,
 566         .general_level_idc   = vps->profile_tier_level.general_level_idc,
 567         .general_tier_flag   = vps->profile_tier_level.general_tier_flag,
 568
 569         .intra_period     = ctx->gop_size,
 570         .intra_idr_period = ctx->gop_size,
 571         .ip_period        = ctx->b_per_p + 1,
 572         .bits_per_second  = ctx->va_bit_rate,
 573
 574         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,
 575         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,
 576
 577         .seq_fields.bits = {
 578             .chroma_format_idc             = sps->chroma_format_idc,
 579             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,
 580             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,
 581             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,
 582             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,
 583             .strong_intra_smoothing_enabled_flag =
 584                 sps->strong_intra_smoothing_enabled_flag,
 585             .amp_enabled_flag              = sps->amp_enabled_flag,
 586             .sample_adaptive_offset_enabled_flag =
 587                 sps->sample_adaptive_offset_enabled_flag,
 588             .pcm_enabled_flag              = sps->pcm_enabled_flag,
 589             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,
 590             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,
 591         },
 592
 593         .log2_min_luma_coding_block_size_minus3 =
 594             sps->log2_min_luma_coding_block_size_minus3,
 595         .log2_diff_max_min_luma_coding_block_size =
 596             sps->log2_diff_max_min_luma_coding_block_size,
 597         .log2_min_transform_block_size_minus2 =
 598             sps->log2_min_luma_transform_block_size_minus2,
 599         .log2_diff_max_min_transform_block_size =
 600             sps->log2_diff_max_min_luma_transform_block_size,
 601         .max_transform_hierarchy_depth_inter =
 602             sps->max_transform_hierarchy_depth_inter,
 603         .max_transform_hierarchy_depth_intra =
 604             sps->max_transform_hierarchy_depth_intra,
 605
 606         .pcm_sample_bit_depth_luma_minus1 =
 607             sps->pcm_sample_bit_depth_luma_minus1,
 608         .pcm_sample_bit_depth_chroma_minus1 =
 609             sps->pcm_sample_bit_depth_chroma_minus1,
 610         .log2_min_pcm_luma_coding_block_size_minus3 =
 611             sps->log2_min_pcm_luma_coding_block_size_minus3,
 612         .log2_max_pcm_luma_coding_block_size_minus3 =
 613             sps->log2_min_pcm_luma_coding_block_size_minus3 +
 614             sps->log2_diff_max_min_pcm_luma_coding_block_size,
 615
 616         .vui_parameters_present_flag = 0,
 617     };
 618
 619     *vpic = (VAEncPictureParameterBufferHEVC) {
 620         .decoded_curr_pic = {
 621             .picture_id = VA_INVALID_ID,
 622             .flags      = VA_PICTURE_HEVC_INVALID,
 623         },
 624
 625         .coded_buf = VA_INVALID_ID,
 626
 627         .collocated_ref_pic_index = 0xff,
 628
 629         .last_picture = 0,
 630
 631         .pic_init_qp            = pps->init_qp_minus26 + 26,
 632         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,
 633         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,
 634         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,
 635
 636         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,
 637         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,
 638
 639         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,
 640         .ctu_max_bitsize_allowed          = 0,
 641
 642         .num_ref_idx_l0_default_active_minus1 =
 643             pps->num_ref_idx_l0_default_active_minus1,
 644         .num_ref_idx_l1_default_active_minus1 =
 645             pps->num_ref_idx_l1_default_active_minus1,
 646
 647         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,
 648
 649         .pic_fields.bits = {
 650             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,
 651             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,
 652             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,
 653             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,
 654             .weighted_pred_flag             = pps->weighted_pred_flag,
 655             .weighted_bipred_flag           = pps->weighted_bipred_flag,
 656             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,
 657             .tiles_enabled_flag             = pps->tiles_enabled_flag,
 658             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,
 659             .loop_filter_across_tiles_enabled_flag =
 660                 pps->loop_filter_across_tiles_enabled_flag,
 661             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |
 662                                                pps->pps_scaling_list_data_present_flag),
 663             .screen_content_flag            = 0,
 664             .enable_gpu_weighted_prediction = 0,
 665             .no_output_of_prior_pics_flag   = 0,
 666         },
 667     };
 668
 669     return 0;
 670 }
 671
 672 static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
 673                                                  VAAPIEncodePicture *pic)
 674 {
 675     VAAPIEncodeContext               *ctx = avctx->priv_data;
 676     VAAPIEncodeH265Context          *priv = avctx->priv_data;
 677     VAAPIEncodeH265Picture          *hpic = pic->priv_data;
 678     VAAPIEncodePicture              *prev = pic->prev;
 679     VAAPIEncodeH265Picture         *hprev = prev ? prev->priv_data : NULL;
 680     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
 681     int i;
 682
 683     if (pic->type == PICTURE_TYPE_IDR) {
 684         av_assert0(pic->display_order == pic->encode_order);
 685
 686         hpic->last_idr_frame = pic->display_order;
 687
 688         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;
 689         hpic->slice_type     = HEVC_SLICE_I;
 690         hpic->pic_type       = 0;
 691     } else {
 692         av_assert0(prev);
 693         hpic->last_idr_frame = hprev->last_idr_frame;
 694
 695         if (pic->type == PICTURE_TYPE_I) {
 696             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;
 697             hpic->slice_type     = HEVC_SLICE_I;
 698             hpic->pic_type       = 0;
 699         } else if (pic->type == PICTURE_TYPE_P) {
 700             av_assert0(pic->refs[0]);
 701             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;
 702             hpic->slice_type     = HEVC_SLICE_P;
 703             hpic->pic_type       = 1;
 704         } else {
 705             VAAPIEncodePicture *irap_ref;
 706             av_assert0(pic->refs[0] && pic->refs[1]);
 707             for (irap_ref = pic; irap_ref; irap_ref = irap_ref->refs[1]) {
 708                 if (irap_ref->type == PICTURE_TYPE_I)
 709                     break;
 710             }
 711             if (pic->b_depth == ctx->max_b_depth) {
 712                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N
 713                                                 : HEVC_NAL_TRAIL_N;
 714             } else {
 715                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R
 716                                                 : HEVC_NAL_TRAIL_R;
 717             }
 718             hpic->slice_type = HEVC_SLICE_B;
 719             hpic->pic_type   = 2;
 720         }
 721     }
 722     hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
 723
 724     if (priv->aud) {
 725         priv->aud_needed = 1;
 726         priv->raw_aud = (H265RawAUD) {
 727             .nal_unit_header = {
 728                 .nal_unit_type         = HEVC_NAL_AUD,
 729                 .nuh_layer_id          = 0,
 730                 .nuh_temporal_id_plus1 = 1,
 731             },
 732             .pic_type = hpic->pic_type,
 733         };
 734     } else {
 735         priv->aud_needed = 0;
 736     }
 737
 738     priv->sei_needed = 0;
 739
 740     // Only look for the metadata on I/IDR frame on the output. We
 741     // may force an IDR frame on the output where the medadata gets
 742     // changed on the input frame.
 743     if ((priv->sei & SEI_MASTERING_DISPLAY) &&
 744         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 745         AVFrameSideData *sd =
 746             av_frame_get_side_data(pic->input_image,
 747                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
 748
 749         if (sd) {
 750             AVMasteringDisplayMetadata *mdm =
 751                 (AVMasteringDisplayMetadata *)sd->data;
 752
 753             // SEI is needed when both the primaries and luminance are set
 754             if (mdm->has_primaries && mdm->has_luminance) {
 755                 H265RawSEIMasteringDisplayColourVolume *mdcv =
 756                     &priv->sei_mastering_display;
 757                 const int mapping[3] = {1, 2, 0};
 758                 const int chroma_den = 50000;
 759                 const int luma_den   = 10000;
 760
 761                 for (i = 0; i < 3; i++) {
 762                     const int j = mapping[i];
 763                     mdcv->display_primaries_x[i] =
 764                         FFMIN(lrint(chroma_den *
 765                                     av_q2d(mdm->display_primaries[j][0])),
 766                               chroma_den);
 767                     mdcv->display_primaries_y[i] =
 768                         FFMIN(lrint(chroma_den *
 769                                     av_q2d(mdm->display_primaries[j][1])),
 770                               chroma_den);
 771                 }
 772
 773                 mdcv->white_point_x =
 774                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[0])),
 775                           chroma_den);
 776                 mdcv->white_point_y =
 777                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[1])),
 778                           chroma_den);
 779
 780                 mdcv->max_display_mastering_luminance =
 781                     lrint(luma_den * av_q2d(mdm->max_luminance));
 782                 mdcv->min_display_mastering_luminance =
 783                     FFMIN(lrint(luma_den * av_q2d(mdm->min_luminance)),
 784                           mdcv->max_display_mastering_luminance);
 785
 786                 priv->sei_needed |= SEI_MASTERING_DISPLAY;
 787             }
 788         }
 789     }
 790
 791     if ((priv->sei & SEI_CONTENT_LIGHT_LEVEL) &&
 792         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 793         AVFrameSideData *sd =
 794             av_frame_get_side_data(pic->input_image,
 795                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
 796
 797         if (sd) {
 798             AVContentLightMetadata *clm =
 799                 (AVContentLightMetadata *)sd->data;
 800             H265RawSEIContentLightLevelInfo *clli =
 801                 &priv->sei_content_light_level;
 802
 803             clli->max_content_light_level     = FFMIN(clm->MaxCLL,  65535);
 804             clli->max_pic_average_light_level = FFMIN(clm->MaxFALL, 65535);
 805
 806             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;
 807         }
 808     }
 809
 810     vpic->decoded_curr_pic = (VAPictureHEVC) {
 811         .picture_id    = pic->recon_surface,
 812         .pic_order_cnt = hpic->pic_order_cnt,
 813         .flags         = 0,
 814     };
 815
 816     for (i = 0; i < pic->nb_refs; i++) {
 817         VAAPIEncodePicture      *ref = pic->refs[i];
 818         VAAPIEncodeH265Picture *href;
 819
 820         av_assert0(ref && ref->encode_order < pic->encode_order);
 821         href = ref->priv_data;
 822
 823         vpic->reference_frames[i] = (VAPictureHEVC) {
 824             .picture_id    = ref->recon_surface,
 825             .pic_order_cnt = href->pic_order_cnt,
 826             .flags = (ref->display_order < pic->display_order ?
 827                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |
 828                      (ref->display_order > pic->display_order ?
 829                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),
 830         };
 831     }
 832     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
 833         vpic->reference_frames[i] = (VAPictureHEVC) {
 834             .picture_id = VA_INVALID_ID,
 835             .flags      = VA_PICTURE_HEVC_INVALID,
 836         };
 837     }
 838
 839     vpic->coded_buf = pic->output_buffer;
 840
 841     vpic->nal_unit_type = hpic->slice_nal_unit;
 842
 843     switch (pic->type) {
 844     case PICTURE_TYPE_IDR:
 845         vpic->pic_fields.bits.idr_pic_flag       = 1;
 846         vpic->pic_fields.bits.coding_type        = 1;
 847         vpic->pic_fields.bits.reference_pic_flag = 1;
 848         break;
 849     case PICTURE_TYPE_I:
 850         vpic->pic_fields.bits.idr_pic_flag       = 0;
 851         vpic->pic_fields.bits.coding_type        = 1;
 852         vpic->pic_fields.bits.reference_pic_flag = 1;
 853         break;
 854     case PICTURE_TYPE_P:
 855         vpic->pic_fields.bits.idr_pic_flag       = 0;
 856         vpic->pic_fields.bits.coding_type        = 2;
 857         vpic->pic_fields.bits.reference_pic_flag = 1;
 858         break;
 859     case PICTURE_TYPE_B:
 860         vpic->pic_fields.bits.idr_pic_flag       = 0;
 861         vpic->pic_fields.bits.coding_type        = 3;
 862         vpic->pic_fields.bits.reference_pic_flag = 0;
 863         break;
 864     default:
 865         av_assert0(0 && "invalid picture type");
 866     }
 867
 868     return 0;
 869 }
 870
 871 static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
 872                                                VAAPIEncodePicture *pic,
 873                                                VAAPIEncodeSlice *slice)
 874 {
 875     VAAPIEncodeH265Context           *priv = avctx->priv_data;
 876     VAAPIEncodeH265Picture           *hpic = pic->priv_data;
 877     const H265RawSPS                  *sps = &priv->raw_sps;
 878     const H265RawPPS                  *pps = &priv->raw_pps;
 879     H265RawSliceHeader                 *sh = &priv->raw_slice.header;
 880     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;
 881     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;
 882     int i;
 883
 884     sh->nal_unit_header = (H265RawNALUnitHeader) {
 885         .nal_unit_type         = hpic->slice_nal_unit,
 886         .nuh_layer_id          = 0,
 887         .nuh_temporal_id_plus1 = 1,
 888     };
 889
 890     sh->slice_pic_parameter_set_id      = pps->pps_pic_parameter_set_id;
 891
 892     sh->first_slice_segment_in_pic_flag = slice->index == 0;
 893     sh->slice_segment_address           = slice->block_start;
 894
 895     sh->slice_type = hpic->slice_type;
 896
 897     sh->slice_pic_order_cnt_lsb = hpic->pic_order_cnt &
 898         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;
 899
 900     if (pic->type != PICTURE_TYPE_IDR) {
 901         H265RawSTRefPicSet *rps;
 902         const VAAPIEncodeH265Picture *strp;
 903         int rps_poc[MAX_DPB_SIZE];
 904         int rps_used[MAX_DPB_SIZE];
 905         int i, j, poc, rps_pics;
 906
 907         sh->short_term_ref_pic_set_sps_flag = 0;
 908
 909         rps = &sh->short_term_ref_pic_set;
 910         memset(rps, 0, sizeof(*rps));
 911
 912         rps_pics = 0;
 913         for (i = 0; i < pic->nb_refs; i++) {
 914             strp = pic->refs[i]->priv_data;
 915             rps_poc[rps_pics]  = strp->pic_order_cnt;
 916             rps_used[rps_pics] = 1;
 917             ++rps_pics;
 918         }
 919         for (i = 0; i < pic->nb_dpb_pics; i++) {
 920             if (pic->dpb[i] == pic)
 921                 continue;
 922             for (j = 0; j < pic->nb_refs; j++) {
 923                 if (pic->dpb[i] == pic->refs[j])
 924                     break;
 925             }
 926             if (j < pic->nb_refs)
 927                 continue;
 928             strp = pic->dpb[i]->priv_data;
 929             rps_poc[rps_pics]  = strp->pic_order_cnt;
 930             rps_used[rps_pics] = 0;
 931             ++rps_pics;
 932         }
 933
 934         for (i = 1; i < rps_pics; i++) {
 935             for (j = i; j > 0; j--) {
 936                 if (rps_poc[j] > rps_poc[j - 1])
 937                     break;
 938                 av_assert0(rps_poc[j] != rps_poc[j - 1]);
 939                 FFSWAP(int, rps_poc[j],  rps_poc[j - 1]);
 940                 FFSWAP(int, rps_used[j], rps_used[j - 1]);
 941             }
 942         }
 943
 944         av_log(avctx, AV_LOG_DEBUG, "RPS for POC %d:",
 945                hpic->pic_order_cnt);
 946         for (i = 0; i < rps_pics; i++) {
 947             av_log(avctx, AV_LOG_DEBUG, " (%d,%d)",
 948                    rps_poc[i], rps_used[i]);
 949         }
 950         av_log(avctx, AV_LOG_DEBUG, "\n");
 951
 952         for (i = 0; i < rps_pics; i++) {
 953             av_assert0(rps_poc[i] != hpic->pic_order_cnt);
 954             if (rps_poc[i] > hpic->pic_order_cnt)
 955                 break;
 956         }
 957
 958         rps->num_negative_pics = i;
 959         poc = hpic->pic_order_cnt;
 960         for (j = i - 1; j >= 0; j--) {
 961             rps->delta_poc_s0_minus1[i - 1 - j] = poc - rps_poc[j] - 1;
 962             rps->used_by_curr_pic_s0_flag[i - 1 - j] = rps_used[j];
 963             poc = rps_poc[j];
 964         }
 965
 966         rps->num_positive_pics = rps_pics - i;
 967         poc = hpic->pic_order_cnt;
 968         for (j = i; j < rps_pics; j++) {
 969             rps->delta_poc_s1_minus1[j - i] = rps_poc[j] - poc - 1;
 970             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];
 971             poc = rps_poc[j];
 972         }
 973
 974         sh->num_long_term_sps  = 0;
 975         sh->num_long_term_pics = 0;
 976
 977         sh->slice_temporal_mvp_enabled_flag =
 978             sps->sps_temporal_mvp_enabled_flag;
 979         if (sh->slice_temporal_mvp_enabled_flag) {
 980             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;
 981             sh->collocated_ref_idx      = 0;
 982         }
 983
 984         sh->num_ref_idx_active_override_flag = 0;
 985         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;
 986         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;
 987     }
 988
 989     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =
 990         sps->sample_adaptive_offset_enabled_flag;
 991
 992     if (pic->type == PICTURE_TYPE_B)
 993         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);
 994     else if (pic->type == PICTURE_TYPE_P)
 995         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);
 996     else
 997         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);
 998
 999
1000     *vslice = (VAEncSliceParameterBufferHEVC) {
1001         .slice_segment_address = sh->slice_segment_address,
1002         .num_ctu_in_slice      = slice->block_size,
1003
1004         .slice_type                 = sh->slice_type,
1005         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,
1006
1007         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,
1008         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,
1009
1010         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,
1011         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,
1012
1013         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,
1014
1015         .slice_qp_delta     = sh->slice_qp_delta,
1016         .slice_cb_qp_offset = sh->slice_cb_qp_offset,
1017         .slice_cr_qp_offset = sh->slice_cr_qp_offset,
1018
1019         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,
1020         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,
1021
1022         .slice_fields.bits = {
1023             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,
1024             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,
1025             .colour_plane_id              = sh->colour_plane_id,
1026             .slice_temporal_mvp_enabled_flag =
1027                 sh->slice_temporal_mvp_enabled_flag,
1028             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,
1029             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,
1030             .num_ref_idx_active_override_flag =
1031                 sh->num_ref_idx_active_override_flag,
1032             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,
1033             .cabac_init_flag              = sh->cabac_init_flag,
1034             .slice_deblocking_filter_disabled_flag =
1035                 sh->slice_deblocking_filter_disabled_flag,
1036             .slice_loop_filter_across_slices_enabled_flag =
1037                 sh->slice_loop_filter_across_slices_enabled_flag,
1038             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,
1039         },
1040     };
1041
1042     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
1043         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
1044         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;
1045         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
1046         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;
1047     }
1048
1049     av_assert0(pic->nb_refs <= 2);
1050     if (pic->nb_refs >= 1) {
1051         // Backward reference for P- or B-frame.
1052         av_assert0(pic->type == PICTURE_TYPE_P ||
1053                    pic->type == PICTURE_TYPE_B);
1054         vslice->ref_pic_list0[0] = vpic->reference_frames[0];
1055     }
1056     if (pic->nb_refs >= 2) {
1057         // Forward reference for B-frame.
1058         av_assert0(pic->type == PICTURE_TYPE_B);
1059         vslice->ref_pic_list1[0] = vpic->reference_frames[1];
1060     }
1061
1062     return 0;
1063 }
1064
1065 static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
1066 {
1067     VAAPIEncodeContext      *ctx = avctx->priv_data;
1068     VAAPIEncodeH265Context *priv = avctx->priv_data;
1069     int err;
1070
1071     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);
1072     if (err < 0)
1073         return err;
1074
1075     if (ctx->va_rc_mode == VA_RC_CQP) {
1076         // Note that VAAPI only supports positive QP values - the range is
1077         // therefore always bounded below by 1, even in 10-bit mode where
1078         // it should go down to -12.
1079
1080         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1081         if (avctx->i_quant_factor > 0.0)
1082             priv->fixed_qp_idr =
1083                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1084                          avctx->i_quant_offset) + 0.5, 1, 51);
1085         else
1086             priv->fixed_qp_idr = priv->fixed_qp_p;
1087         if (avctx->b_quant_factor > 0.0)
1088             priv->fixed_qp_b =
1089                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1090                          avctx->b_quant_offset) + 0.5, 1, 51);
1091         else
1092             priv->fixed_qp_b = priv->fixed_qp_p;
1093
1094         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1095                "%d / %d / %d for IDR- / P- / B-frames.\n",
1096                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1097
1098     } else {
1099         // These still need to be set for init_qp/slice_qp_delta.
1100         priv->fixed_qp_idr = 30;
1101         priv->fixed_qp_p   = 30;
1102         priv->fixed_qp_b   = 30;
1103     }
1104
1105     return 0;
1106 }
1107
1108 static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {
1109     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },
1110     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },
1111 #if VA_CHECK_VERSION(0, 37, 0)
1112     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },
1113     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },
1114 #endif
1115     { FF_PROFILE_UNKNOWN }
1116 };
1117
1118 static const VAAPIEncodeType vaapi_encode_type_h265 = {
1119     .profiles              = vaapi_encode_h265_profiles,
1120
1121     .flags                 = FLAG_SLICE_CONTROL |
1122                              FLAG_B_PICTURES |
1123                              FLAG_B_PICTURE_REFERENCES |
1124                              FLAG_NON_IDR_KEY_PICTURES,
1125
1126     .default_quality       = 25,
1127
1128     .configure             = &vaapi_encode_h265_configure,
1129
1130     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),
1131
1132     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),
1133     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,
1134
1135     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),
1136     .init_picture_params   = &vaapi_encode_h265_init_picture_params,
1137
1138     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),
1139     .init_slice_params     = &vaapi_encode_h265_init_slice_params,
1140
1141     .sequence_header_type  = VAEncPackedHeaderSequence,
1142     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,
1143
1144     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,
1145     .write_slice_header    = &vaapi_encode_h265_write_slice_header,
1146
1147     .write_extra_header    = &vaapi_encode_h265_write_extra_header,
1148 };
1149
1150 static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
1151 {
1152     VAAPIEncodeContext      *ctx = avctx->priv_data;
1153     VAAPIEncodeH265Context *priv = avctx->priv_data;
1154
1155     ctx->codec = &vaapi_encode_type_h265;
1156
1157     if (avctx->profile == FF_PROFILE_UNKNOWN)
1158         avctx->profile = priv->profile;
1159     if (avctx->level == FF_LEVEL_UNKNOWN)
1160         avctx->level = priv->level;
1161
1162     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1163         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1164                "in 8-bit unsigned integer.\n", avctx->level);
1165         return AVERROR(EINVAL);
1166     }
1167
1168     ctx->desired_packed_headers =
1169         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.
1170         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
1171         VA_ENC_PACKED_HEADER_MISC;      // SEI
1172
1173     ctx->surface_width  = FFALIGN(avctx->width,  16);
1174     ctx->surface_height = FFALIGN(avctx->height, 16);
1175
1176     // CTU size is currently hard-coded to 32.
1177     ctx->slice_block_width = ctx->slice_block_height = 32;
1178
1179     if (priv->qp > 0)
1180         ctx->explicit_qp = priv->qp;
1181
1182     return ff_vaapi_encode_init(avctx);
1183 }
1184
1185 static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)
1186 {
1187     VAAPIEncodeH265Context *priv = avctx->priv_data;
1188
1189     ff_cbs_fragment_free(priv->cbc, &priv->current_access_unit);
1190     ff_cbs_close(&priv->cbc);
1191
1192     return ff_vaapi_encode_close(avctx);
1193 }
1194
1195 #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)
1196 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1197 static const AVOption vaapi_encode_h265_options[] = {
1198     VAAPI_ENCODE_COMMON_OPTIONS,
1199     VAAPI_ENCODE_RC_OPTIONS,
1200
1201     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1202       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1203
1204     { "aud", "Include AUD",
1205       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1206
1207     { "profile", "Set profile (general_profile_idc)",
1208       OFFSET(profile), AV_OPT_TYPE_INT,
1209       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },
1210
1211 #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1212       { .i64 = value }, 0, 0, FLAGS, "profile"
1213     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },
1214     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },
1215     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },
1216 #undef PROFILE
1217
1218     { "tier", "Set tier (general_tier_flag)",
1219       OFFSET(tier), AV_OPT_TYPE_INT,
1220       { .i64 = 0 }, 0, 1, FLAGS, "tier" },
1221     { "main", NULL, 0, AV_OPT_TYPE_CONST,
1222       { .i64 = 0 }, 0, 0, FLAGS, "tier" },
1223     { "high", NULL, 0, AV_OPT_TYPE_CONST,
1224       { .i64 = 1 }, 0, 0, FLAGS, "tier" },
1225
1226     { "level", "Set level (general_level_idc)",
1227       OFFSET(level), AV_OPT_TYPE_INT,
1228       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1229
1230 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1231       { .i64 = value }, 0, 0, FLAGS, "level"
1232     { LEVEL("1",    30) },
1233     { LEVEL("2",    60) },
1234     { LEVEL("2.1",  63) },
1235     { LEVEL("3",    90) },
1236     { LEVEL("3.1",  93) },
1237     { LEVEL("4",   120) },
1238     { LEVEL("4.1", 123) },
1239     { LEVEL("5",   150) },
1240     { LEVEL("5.1", 153) },
1241     { LEVEL("5.2", 156) },
1242     { LEVEL("6",   180) },
1243     { LEVEL("6.1", 183) },
1244     { LEVEL("6.2", 186) },
1245 #undef LEVEL
1246
1247     { "sei", "Set SEI to include",
1248       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1249       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1250       0, INT_MAX, FLAGS, "sei" },
1251     { "hdr",
1252       "Include HDR metadata for mastering display colour volume "
1253       "and content light level information",
1254       0, AV_OPT_TYPE_CONST,
1255       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1256       INT_MIN, INT_MAX, FLAGS, "sei" },
1257
1258     { NULL },
1259 };
1260
1261 static const AVCodecDefault vaapi_encode_h265_defaults[] = {
1262     { "b",              "0"   },
1263     { "bf",             "2"   },
1264     { "g",              "120" },
1265     { "i_qfactor",      "1"   },
1266     { "i_qoffset",      "0"   },
1267     { "b_qfactor",      "6/5" },
1268     { "b_qoffset",      "0"   },
1269     { "qmin",           "-1"  },
1270     { "qmax",           "-1"  },
1271     { NULL },
1272 };
1273
1274 static const AVClass vaapi_encode_h265_class = {
1275     .class_name = "h265_vaapi",
1276     .item_name  = av_default_item_name,
1277     .option     = vaapi_encode_h265_options,
1278     .version    = LIBAVUTIL_VERSION_INT,
1279 };
1280
1281 AVCodec ff_hevc_vaapi_encoder = {
1282     .name           = "hevc_vaapi",
1283     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),
1284     .type           = AVMEDIA_TYPE_VIDEO,
1285     .id             = AV_CODEC_ID_HEVC,
1286     .priv_data_size = sizeof(VAAPIEncodeH265Context),
1287     .init           = &vaapi_encode_h265_init,
1288     .send_frame     = &ff_vaapi_encode_send_frame,
1289     .receive_packet = &ff_vaapi_encode_receive_packet,
1290     .close          = &vaapi_encode_h265_close,
1291     .priv_class     = &vaapi_encode_h265_class,
1292     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1293     .defaults       = vaapi_encode_h265_defaults,
1294     .pix_fmts = (const enum AVPixelFormat[]) {
1295         AV_PIX_FMT_VAAPI,
1296         AV_PIX_FMT_NONE,
1297     },
1298     .wrapper_name   = "vaapi",
1299 };