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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     H265RawNALUnitHeader *header = nal_unit;
 120     int err;
 121
 122     err = ff_cbs_insert_unit_content(au, -1,
 123                                      header->nal_unit_type, nal_unit, NULL);
 124     if (err < 0) {
 125         av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
 126                "type = %d.\n", header->nal_unit_type);
 127         return err;
 128     }
 129
 130     return 0;
 131 }
 132
 133 static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,
 134                                                    char *data, size_t *data_len)
 135 {
 136     VAAPIEncodeH265Context *priv = avctx->priv_data;
 137     CodedBitstreamFragment   *au = &priv->current_access_unit;
 138     int err;
 139
 140     if (priv->aud_needed) {
 141         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
 142         if (err < 0)
 143             goto fail;
 144         priv->aud_needed = 0;
 145     }
 146
 147     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_vps);
 148     if (err < 0)
 149         goto fail;
 150
 151     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_sps);
 152     if (err < 0)
 153         goto fail;
 154
 155     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_pps);
 156     if (err < 0)
 157         goto fail;
 158
 159     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 160 fail:
 161     ff_cbs_fragment_reset(au);
 162     return err;
 163 }
 164
 165 static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,
 166                                                 VAAPIEncodePicture *pic,
 167                                                 VAAPIEncodeSlice *slice,
 168                                                 char *data, size_t *data_len)
 169 {
 170     VAAPIEncodeH265Context *priv = avctx->priv_data;
 171     CodedBitstreamFragment   *au = &priv->current_access_unit;
 172     int err;
 173
 174     if (priv->aud_needed) {
 175         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);
 176         if (err < 0)
 177             goto fail;
 178         priv->aud_needed = 0;
 179     }
 180
 181     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_slice);
 182     if (err < 0)
 183         goto fail;
 184
 185     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 186 fail:
 187     ff_cbs_fragment_reset(au);
 188     return err;
 189 }
 190
 191 static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,
 192                                                 VAAPIEncodePicture *pic,
 193                                                 int index, int *type,
 194                                                 char *data, size_t *data_len)
 195 {
 196     VAAPIEncodeH265Context *priv = avctx->priv_data;
 197     CodedBitstreamFragment   *au = &priv->current_access_unit;
 198     int err, i;
 199
 200     if (priv->sei_needed) {
 201         H265RawSEI *sei = &priv->raw_sei;
 202
 203         if (priv->aud_needed) {
 204             err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud);
 205             if (err < 0)
 206                 goto fail;
 207             priv->aud_needed = 0;
 208         }
 209
 210         *sei = (H265RawSEI) {
 211             .nal_unit_header = {
 212                 .nal_unit_type         = HEVC_NAL_SEI_PREFIX,
 213                 .nuh_layer_id          = 0,
 214                 .nuh_temporal_id_plus1 = 1,
 215             },
 216         };
 217
 218         i = 0;
 219
 220         if (priv->sei_needed & SEI_MASTERING_DISPLAY) {
 221             sei->payload[i].payload_type = HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO;
 222             sei->payload[i].payload.mastering_display = priv->sei_mastering_display;
 223             ++i;
 224         }
 225
 226         if (priv->sei_needed & SEI_CONTENT_LIGHT_LEVEL) {
 227             sei->payload[i].payload_type = HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO;
 228             sei->payload[i].payload.content_light_level = priv->sei_content_light_level;
 229             ++i;
 230         }
 231
 232         sei->payload_count = i;
 233         av_assert0(sei->payload_count > 0);
 234
 235         err = vaapi_encode_h265_add_nal(avctx, au, sei);
 236         if (err < 0)
 237             goto fail;
 238         priv->sei_needed = 0;
 239
 240         err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);
 241         if (err < 0)
 242             goto fail;
 243
 244         ff_cbs_fragment_reset(au);
 245
 246         *type = VAEncPackedHeaderRawData;
 247         return 0;
 248     } else {
 249         return AVERROR_EOF;
 250     }
 251
 252 fail:
 253     ff_cbs_fragment_reset(au);
 254     return err;
 255 }
 256
 257 static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
 258 {
 259     VAAPIEncodeContext                *ctx = avctx->priv_data;
 260     VAAPIEncodeH265Context           *priv = avctx->priv_data;
 261     H265RawVPS                        *vps = &priv->raw_vps;
 262     H265RawSPS                        *sps = &priv->raw_sps;
 263     H265RawPPS                        *pps = &priv->raw_pps;
 264     H265RawProfileTierLevel           *ptl = &vps->profile_tier_level;
 265     H265RawVUI                        *vui = &sps->vui;
 266     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
 267     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;
 268     const AVPixFmtDescriptor *desc;
 269     int chroma_format, bit_depth;
 270     int i;
 271
 272     memset(vps, 0, sizeof(*vps));
 273     memset(sps, 0, sizeof(*sps));
 274     memset(pps, 0, sizeof(*pps));
 275
 276
 277     desc = av_pix_fmt_desc_get(priv->common.input_frames->sw_format);
 278     av_assert0(desc);
 279     if (desc->nb_components == 1) {
 280         chroma_format = 0;
 281     } else {
 282         if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1) {
 283             chroma_format = 1;
 284         } else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0) {
 285             chroma_format = 2;
 286         } else if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) {
 287             chroma_format = 3;
 288         } else {
 289             av_log(avctx, AV_LOG_ERROR, "Chroma format of input pixel format "
 290                    "%s is not supported.\n", desc->name);
 291             return AVERROR(EINVAL);
 292         }
 293     }
 294     bit_depth = desc->comp[0].depth;
 295
 296
 297     // VPS
 298
 299     vps->nal_unit_header = (H265RawNALUnitHeader) {
 300         .nal_unit_type         = HEVC_NAL_VPS,
 301         .nuh_layer_id          = 0,
 302         .nuh_temporal_id_plus1 = 1,
 303     };
 304
 305     vps->vps_video_parameter_set_id = 0;
 306
 307     vps->vps_base_layer_internal_flag  = 1;
 308     vps->vps_base_layer_available_flag = 1;
 309     vps->vps_max_layers_minus1         = 0;
 310     vps->vps_max_sub_layers_minus1     = 0;
 311     vps->vps_temporal_id_nesting_flag  = 1;
 312
 313     ptl->general_profile_space = 0;
 314     ptl->general_profile_idc   = avctx->profile;
 315     ptl->general_tier_flag     = priv->tier;
 316
 317     if (chroma_format == 1) {
 318         ptl->general_profile_compatibility_flag[1] = bit_depth ==  8;
 319         ptl->general_profile_compatibility_flag[2] = bit_depth <= 10;
 320     }
 321     ptl->general_profile_compatibility_flag[4] = 1;
 322
 323     ptl->general_progressive_source_flag    = 1;
 324     ptl->general_interlaced_source_flag     = 0;
 325     ptl->general_non_packed_constraint_flag = 1;
 326     ptl->general_frame_only_constraint_flag = 1;
 327
 328     ptl->general_max_12bit_constraint_flag = bit_depth <= 12;
 329     ptl->general_max_10bit_constraint_flag = bit_depth <= 10;
 330     ptl->general_max_8bit_constraint_flag  = bit_depth ==  8;
 331
 332     ptl->general_max_422chroma_constraint_flag  = chroma_format <= 2;
 333     ptl->general_max_420chroma_constraint_flag  = chroma_format <= 1;
 334     ptl->general_max_monochrome_constraint_flag = chroma_format == 0;
 335
 336     ptl->general_intra_constraint_flag = ctx->gop_size == 1;
 337
 338     ptl->general_lower_bit_rate_constraint_flag = 1;
 339
 340     if (avctx->level != FF_LEVEL_UNKNOWN) {
 341         ptl->general_level_idc = avctx->level;
 342     } else {
 343         const H265LevelDescriptor *level;
 344
 345         level = ff_h265_guess_level(ptl, avctx->bit_rate,
 346                                     ctx->surface_width, ctx->surface_height,
 347                                     ctx->nb_slices, ctx->tile_rows, ctx->tile_cols,
 348                                     (ctx->b_per_p > 0) + 1);
 349         if (level) {
 350             av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);
 351             ptl->general_level_idc = level->level_idc;
 352         } else {
 353             av_log(avctx, AV_LOG_VERBOSE, "Stream will not conform to "
 354                    "any normal level; using level 8.5.\n");
 355             ptl->general_level_idc = 255;
 356             // The tier flag must be set in level 8.5.
 357             ptl->general_tier_flag = 1;
 358         }
 359     }
 360
 361     vps->vps_sub_layer_ordering_info_present_flag = 0;
 362     vps->vps_max_dec_pic_buffering_minus1[0]      = ctx->max_b_depth + 1;
 363     vps->vps_max_num_reorder_pics[0]              = ctx->max_b_depth;
 364     vps->vps_max_latency_increase_plus1[0]        = 0;
 365
 366     vps->vps_max_layer_id             = 0;
 367     vps->vps_num_layer_sets_minus1    = 0;
 368     vps->layer_id_included_flag[0][0] = 1;
 369
 370     vps->vps_timing_info_present_flag = 1;
 371     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 372         vps->vps_num_units_in_tick  = avctx->framerate.den;
 373         vps->vps_time_scale         = avctx->framerate.num;
 374         vps->vps_poc_proportional_to_timing_flag = 1;
 375         vps->vps_num_ticks_poc_diff_one_minus1   = 0;
 376     } else {
 377         vps->vps_num_units_in_tick  = avctx->time_base.num;
 378         vps->vps_time_scale         = avctx->time_base.den;
 379         vps->vps_poc_proportional_to_timing_flag = 0;
 380     }
 381     vps->vps_num_hrd_parameters = 0;
 382
 383
 384     // SPS
 385
 386     sps->nal_unit_header = (H265RawNALUnitHeader) {
 387         .nal_unit_type         = HEVC_NAL_SPS,
 388         .nuh_layer_id          = 0,
 389         .nuh_temporal_id_plus1 = 1,
 390     };
 391
 392     sps->sps_video_parameter_set_id = vps->vps_video_parameter_set_id;
 393
 394     sps->sps_max_sub_layers_minus1    = vps->vps_max_sub_layers_minus1;
 395     sps->sps_temporal_id_nesting_flag = vps->vps_temporal_id_nesting_flag;
 396
 397     sps->profile_tier_level = vps->profile_tier_level;
 398
 399     sps->sps_seq_parameter_set_id = 0;
 400
 401     sps->chroma_format_idc          = chroma_format;
 402     sps->separate_colour_plane_flag = 0;
 403
 404     sps->pic_width_in_luma_samples  = ctx->surface_width;
 405     sps->pic_height_in_luma_samples = ctx->surface_height;
 406
 407     if (avctx->width  != ctx->surface_width ||
 408         avctx->height != ctx->surface_height) {
 409         sps->conformance_window_flag = 1;
 410         sps->conf_win_left_offset   = 0;
 411         sps->conf_win_right_offset  =
 412             (ctx->surface_width - avctx->width) >> desc->log2_chroma_w;
 413         sps->conf_win_top_offset    = 0;
 414         sps->conf_win_bottom_offset =
 415             (ctx->surface_height - avctx->height) >> desc->log2_chroma_h;
 416     } else {
 417         sps->conformance_window_flag = 0;
 418     }
 419
 420     sps->bit_depth_luma_minus8   = bit_depth - 8;
 421     sps->bit_depth_chroma_minus8 = bit_depth - 8;
 422
 423     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;
 424
 425     sps->sps_sub_layer_ordering_info_present_flag =
 426         vps->vps_sub_layer_ordering_info_present_flag;
 427     for (i = 0; i <= sps->sps_max_sub_layers_minus1; i++) {
 428         sps->sps_max_dec_pic_buffering_minus1[i] =
 429             vps->vps_max_dec_pic_buffering_minus1[i];
 430         sps->sps_max_num_reorder_pics[i] =
 431             vps->vps_max_num_reorder_pics[i];
 432         sps->sps_max_latency_increase_plus1[i] =
 433             vps->vps_max_latency_increase_plus1[i];
 434     }
 435
 436     // These have to come from the capabilities of the encoder.  We have no
 437     // way to query them, so just hardcode parameters which work on the Intel
 438     // driver.
 439     // CTB size from 8x8 to 32x32.
 440     sps->log2_min_luma_coding_block_size_minus3   = 0;
 441     sps->log2_diff_max_min_luma_coding_block_size = 2;
 442     // Transform size from 4x4 to 32x32.
 443     sps->log2_min_luma_transform_block_size_minus2   = 0;
 444     sps->log2_diff_max_min_luma_transform_block_size = 3;
 445     // Full transform hierarchy allowed (2-5).
 446     sps->max_transform_hierarchy_depth_inter = 3;
 447     sps->max_transform_hierarchy_depth_intra = 3;
 448     // AMP works.
 449     sps->amp_enabled_flag = 1;
 450     // SAO and temporal MVP do not work.
 451     sps->sample_adaptive_offset_enabled_flag = 0;
 452     sps->sps_temporal_mvp_enabled_flag       = 0;
 453
 454     sps->pcm_enabled_flag = 0;
 455
 456     // STRPSs should ideally be here rather than defined individually in
 457     // each slice, but the structure isn't completely fixed so for now
 458     // don't bother.
 459     sps->num_short_term_ref_pic_sets     = 0;
 460     sps->long_term_ref_pics_present_flag = 0;
 461
 462     sps->vui_parameters_present_flag = 1;
 463
 464     if (avctx->sample_aspect_ratio.num != 0 &&
 465         avctx->sample_aspect_ratio.den != 0) {
 466         static const AVRational sar_idc[] = {
 467             {   0,  0 },
 468             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
 469             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
 470             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
 471             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
 472         };
 473         int num, den, i;
 474         av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
 475                   avctx->sample_aspect_ratio.den, 65535);
 476         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
 477             if (num == sar_idc[i].num &&
 478                 den == sar_idc[i].den) {
 479                 vui->aspect_ratio_idc = i;
 480                 break;
 481             }
 482         }
 483         if (i >= FF_ARRAY_ELEMS(sar_idc)) {
 484             vui->aspect_ratio_idc = 255;
 485             vui->sar_width  = num;
 486             vui->sar_height = den;
 487         }
 488         vui->aspect_ratio_info_present_flag = 1;
 489     }
 490
 491     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
 492         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 493         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 494         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 495         vui->video_signal_type_present_flag = 1;
 496         vui->video_format      = 5; // Unspecified.
 497         vui->video_full_range_flag =
 498             avctx->color_range == AVCOL_RANGE_JPEG;
 499
 500         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 501             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 502             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 503             vui->colour_description_present_flag = 1;
 504             vui->colour_primaries         = avctx->color_primaries;
 505             vui->transfer_characteristics = avctx->color_trc;
 506             vui->matrix_coefficients      = avctx->colorspace;
 507         }
 508     } else {
 509         vui->video_format             = 5;
 510         vui->video_full_range_flag    = 0;
 511         vui->colour_primaries         = avctx->color_primaries;
 512         vui->transfer_characteristics = avctx->color_trc;
 513         vui->matrix_coefficients      = avctx->colorspace;
 514     }
 515
 516     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
 517         vui->chroma_loc_info_present_flag = 1;
 518         vui->chroma_sample_loc_type_top_field    =
 519         vui->chroma_sample_loc_type_bottom_field =
 520             avctx->chroma_sample_location - 1;
 521     }
 522
 523     vui->vui_timing_info_present_flag        = 1;
 524     vui->vui_num_units_in_tick               = vps->vps_num_units_in_tick;
 525     vui->vui_time_scale                      = vps->vps_time_scale;
 526     vui->vui_poc_proportional_to_timing_flag = vps->vps_poc_proportional_to_timing_flag;
 527     vui->vui_num_ticks_poc_diff_one_minus1   = vps->vps_num_ticks_poc_diff_one_minus1;
 528     vui->vui_hrd_parameters_present_flag     = 0;
 529
 530     vui->bitstream_restriction_flag    = 1;
 531     vui->motion_vectors_over_pic_boundaries_flag = 1;
 532     vui->restricted_ref_pic_lists_flag = 1;
 533     vui->max_bytes_per_pic_denom       = 0;
 534     vui->max_bits_per_min_cu_denom     = 0;
 535     vui->log2_max_mv_length_horizontal = 15;
 536     vui->log2_max_mv_length_vertical   = 15;
 537
 538
 539     // PPS
 540
 541     pps->nal_unit_header = (H265RawNALUnitHeader) {
 542         .nal_unit_type         = HEVC_NAL_PPS,
 543         .nuh_layer_id          = 0,
 544         .nuh_temporal_id_plus1 = 1,
 545     };
 546
 547     pps->pps_pic_parameter_set_id = 0;
 548     pps->pps_seq_parameter_set_id = sps->sps_seq_parameter_set_id;
 549
 550     pps->num_ref_idx_l0_default_active_minus1 = 0;
 551     pps->num_ref_idx_l1_default_active_minus1 = 0;
 552
 553     pps->init_qp_minus26 = priv->fixed_qp_idr - 26;
 554
 555     pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP);
 556     pps->diff_cu_qp_delta_depth   = 0;
 557
 558     if (ctx->tile_rows && ctx->tile_cols) {
 559         int uniform_spacing;
 560
 561         pps->tiles_enabled_flag      = 1;
 562         pps->num_tile_columns_minus1 = ctx->tile_cols - 1;
 563         pps->num_tile_rows_minus1    = ctx->tile_rows - 1;
 564
 565         // Test whether the spacing provided matches the H.265 uniform
 566         // spacing, and set the flag if it does.
 567         uniform_spacing = 1;
 568         for (i = 0; i <= pps->num_tile_columns_minus1 &&
 569                     uniform_spacing; i++) {
 570             if (ctx->col_width[i] !=
 571                 (i + 1) * ctx->slice_block_cols / ctx->tile_cols -
 572                  i      * ctx->slice_block_cols / ctx->tile_cols)
 573                 uniform_spacing = 0;
 574         }
 575         for (i = 0; i <= pps->num_tile_rows_minus1 &&
 576                     uniform_spacing; i++) {
 577             if (ctx->row_height[i] !=
 578                 (i + 1) * ctx->slice_block_rows / ctx->tile_rows -
 579                  i      * ctx->slice_block_rows / ctx->tile_rows)
 580                 uniform_spacing = 0;
 581         }
 582         pps->uniform_spacing_flag = uniform_spacing;
 583
 584         for (i = 0; i <= pps->num_tile_columns_minus1; i++)
 585             pps->column_width_minus1[i] = ctx->col_width[i] - 1;
 586         for (i = 0; i <= pps->num_tile_rows_minus1; i++)
 587             pps->row_height_minus1[i]   = ctx->row_height[i] - 1;
 588
 589         pps->loop_filter_across_tiles_enabled_flag = 1;
 590     }
 591
 592     pps->pps_loop_filter_across_slices_enabled_flag = 1;
 593
 594     // Fill VAAPI parameter buffers.
 595
 596     *vseq = (VAEncSequenceParameterBufferHEVC) {
 597         .general_profile_idc = vps->profile_tier_level.general_profile_idc,
 598         .general_level_idc   = vps->profile_tier_level.general_level_idc,
 599         .general_tier_flag   = vps->profile_tier_level.general_tier_flag,
 600
 601         .intra_period     = ctx->gop_size,
 602         .intra_idr_period = ctx->gop_size,
 603         .ip_period        = ctx->b_per_p + 1,
 604         .bits_per_second  = ctx->va_bit_rate,
 605
 606         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,
 607         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,
 608
 609         .seq_fields.bits = {
 610             .chroma_format_idc             = sps->chroma_format_idc,
 611             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,
 612             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,
 613             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,
 614             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,
 615             .strong_intra_smoothing_enabled_flag =
 616                 sps->strong_intra_smoothing_enabled_flag,
 617             .amp_enabled_flag              = sps->amp_enabled_flag,
 618             .sample_adaptive_offset_enabled_flag =
 619                 sps->sample_adaptive_offset_enabled_flag,
 620             .pcm_enabled_flag              = sps->pcm_enabled_flag,
 621             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,
 622             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,
 623         },
 624
 625         .log2_min_luma_coding_block_size_minus3 =
 626             sps->log2_min_luma_coding_block_size_minus3,
 627         .log2_diff_max_min_luma_coding_block_size =
 628             sps->log2_diff_max_min_luma_coding_block_size,
 629         .log2_min_transform_block_size_minus2 =
 630             sps->log2_min_luma_transform_block_size_minus2,
 631         .log2_diff_max_min_transform_block_size =
 632             sps->log2_diff_max_min_luma_transform_block_size,
 633         .max_transform_hierarchy_depth_inter =
 634             sps->max_transform_hierarchy_depth_inter,
 635         .max_transform_hierarchy_depth_intra =
 636             sps->max_transform_hierarchy_depth_intra,
 637
 638         .pcm_sample_bit_depth_luma_minus1 =
 639             sps->pcm_sample_bit_depth_luma_minus1,
 640         .pcm_sample_bit_depth_chroma_minus1 =
 641             sps->pcm_sample_bit_depth_chroma_minus1,
 642         .log2_min_pcm_luma_coding_block_size_minus3 =
 643             sps->log2_min_pcm_luma_coding_block_size_minus3,
 644         .log2_max_pcm_luma_coding_block_size_minus3 =
 645             sps->log2_min_pcm_luma_coding_block_size_minus3 +
 646             sps->log2_diff_max_min_pcm_luma_coding_block_size,
 647
 648         .vui_parameters_present_flag = 0,
 649     };
 650
 651     *vpic = (VAEncPictureParameterBufferHEVC) {
 652         .decoded_curr_pic = {
 653             .picture_id = VA_INVALID_ID,
 654             .flags      = VA_PICTURE_HEVC_INVALID,
 655         },
 656
 657         .coded_buf = VA_INVALID_ID,
 658
 659         .collocated_ref_pic_index = 0xff,
 660
 661         .last_picture = 0,
 662
 663         .pic_init_qp            = pps->init_qp_minus26 + 26,
 664         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,
 665         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,
 666         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,
 667
 668         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,
 669         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,
 670
 671         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,
 672         .ctu_max_bitsize_allowed          = 0,
 673
 674         .num_ref_idx_l0_default_active_minus1 =
 675             pps->num_ref_idx_l0_default_active_minus1,
 676         .num_ref_idx_l1_default_active_minus1 =
 677             pps->num_ref_idx_l1_default_active_minus1,
 678
 679         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,
 680
 681         .pic_fields.bits = {
 682             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,
 683             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,
 684             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,
 685             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,
 686             .weighted_pred_flag             = pps->weighted_pred_flag,
 687             .weighted_bipred_flag           = pps->weighted_bipred_flag,
 688             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,
 689             .tiles_enabled_flag             = pps->tiles_enabled_flag,
 690             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,
 691             .loop_filter_across_tiles_enabled_flag =
 692                 pps->loop_filter_across_tiles_enabled_flag,
 693             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |
 694                                                pps->pps_scaling_list_data_present_flag),
 695             .screen_content_flag            = 0,
 696             .enable_gpu_weighted_prediction = 0,
 697             .no_output_of_prior_pics_flag   = 0,
 698         },
 699     };
 700
 701     if (pps->tiles_enabled_flag) {
 702         for (i = 0; i <= vpic->num_tile_rows_minus1; i++)
 703             vpic->row_height_minus1[i]   = pps->row_height_minus1[i];
 704         for (i = 0; i <= vpic->num_tile_columns_minus1; i++)
 705             vpic->column_width_minus1[i] = pps->column_width_minus1[i];
 706     }
 707
 708     return 0;
 709 }
 710
 711 static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
 712                                                  VAAPIEncodePicture *pic)
 713 {
 714     VAAPIEncodeContext               *ctx = avctx->priv_data;
 715     VAAPIEncodeH265Context          *priv = avctx->priv_data;
 716     VAAPIEncodeH265Picture          *hpic = pic->priv_data;
 717     VAAPIEncodePicture              *prev = pic->prev;
 718     VAAPIEncodeH265Picture         *hprev = prev ? prev->priv_data : NULL;
 719     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
 720     int i;
 721
 722     if (pic->type == PICTURE_TYPE_IDR) {
 723         av_assert0(pic->display_order == pic->encode_order);
 724
 725         hpic->last_idr_frame = pic->display_order;
 726
 727         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;
 728         hpic->slice_type     = HEVC_SLICE_I;
 729         hpic->pic_type       = 0;
 730     } else {
 731         av_assert0(prev);
 732         hpic->last_idr_frame = hprev->last_idr_frame;
 733
 734         if (pic->type == PICTURE_TYPE_I) {
 735             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;
 736             hpic->slice_type     = HEVC_SLICE_I;
 737             hpic->pic_type       = 0;
 738         } else if (pic->type == PICTURE_TYPE_P) {
 739             av_assert0(pic->refs[0]);
 740             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;
 741             hpic->slice_type     = HEVC_SLICE_P;
 742             hpic->pic_type       = 1;
 743         } else {
 744             VAAPIEncodePicture *irap_ref;
 745             av_assert0(pic->refs[0] && pic->refs[1]);
 746             for (irap_ref = pic; irap_ref; irap_ref = irap_ref->refs[1]) {
 747                 if (irap_ref->type == PICTURE_TYPE_I)
 748                     break;
 749             }
 750             if (pic->b_depth == ctx->max_b_depth) {
 751                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N
 752                                                 : HEVC_NAL_TRAIL_N;
 753             } else {
 754                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R
 755                                                 : HEVC_NAL_TRAIL_R;
 756             }
 757             hpic->slice_type = HEVC_SLICE_B;
 758             hpic->pic_type   = 2;
 759         }
 760     }
 761     hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
 762
 763     if (priv->aud) {
 764         priv->aud_needed = 1;
 765         priv->raw_aud = (H265RawAUD) {
 766             .nal_unit_header = {
 767                 .nal_unit_type         = HEVC_NAL_AUD,
 768                 .nuh_layer_id          = 0,
 769                 .nuh_temporal_id_plus1 = 1,
 770             },
 771             .pic_type = hpic->pic_type,
 772         };
 773     } else {
 774         priv->aud_needed = 0;
 775     }
 776
 777     priv->sei_needed = 0;
 778
 779     // Only look for the metadata on I/IDR frame on the output. We
 780     // may force an IDR frame on the output where the medadata gets
 781     // changed on the input frame.
 782     if ((priv->sei & SEI_MASTERING_DISPLAY) &&
 783         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 784         AVFrameSideData *sd =
 785             av_frame_get_side_data(pic->input_image,
 786                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
 787
 788         if (sd) {
 789             AVMasteringDisplayMetadata *mdm =
 790                 (AVMasteringDisplayMetadata *)sd->data;
 791
 792             // SEI is needed when both the primaries and luminance are set
 793             if (mdm->has_primaries && mdm->has_luminance) {
 794                 H265RawSEIMasteringDisplayColourVolume *mdcv =
 795                     &priv->sei_mastering_display;
 796                 const int mapping[3] = {1, 2, 0};
 797                 const int chroma_den = 50000;
 798                 const int luma_den   = 10000;
 799
 800                 for (i = 0; i < 3; i++) {
 801                     const int j = mapping[i];
 802                     mdcv->display_primaries_x[i] =
 803                         FFMIN(lrint(chroma_den *
 804                                     av_q2d(mdm->display_primaries[j][0])),
 805                               chroma_den);
 806                     mdcv->display_primaries_y[i] =
 807                         FFMIN(lrint(chroma_den *
 808                                     av_q2d(mdm->display_primaries[j][1])),
 809                               chroma_den);
 810                 }
 811
 812                 mdcv->white_point_x =
 813                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[0])),
 814                           chroma_den);
 815                 mdcv->white_point_y =
 816                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[1])),
 817                           chroma_den);
 818
 819                 mdcv->max_display_mastering_luminance =
 820                     lrint(luma_den * av_q2d(mdm->max_luminance));
 821                 mdcv->min_display_mastering_luminance =
 822                     FFMIN(lrint(luma_den * av_q2d(mdm->min_luminance)),
 823                           mdcv->max_display_mastering_luminance);
 824
 825                 priv->sei_needed |= SEI_MASTERING_DISPLAY;
 826             }
 827         }
 828     }
 829
 830     if ((priv->sei & SEI_CONTENT_LIGHT_LEVEL) &&
 831         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 832         AVFrameSideData *sd =
 833             av_frame_get_side_data(pic->input_image,
 834                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
 835
 836         if (sd) {
 837             AVContentLightMetadata *clm =
 838                 (AVContentLightMetadata *)sd->data;
 839             H265RawSEIContentLightLevelInfo *clli =
 840                 &priv->sei_content_light_level;
 841
 842             clli->max_content_light_level     = FFMIN(clm->MaxCLL,  65535);
 843             clli->max_pic_average_light_level = FFMIN(clm->MaxFALL, 65535);
 844
 845             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;
 846         }
 847     }
 848
 849     vpic->decoded_curr_pic = (VAPictureHEVC) {
 850         .picture_id    = pic->recon_surface,
 851         .pic_order_cnt = hpic->pic_order_cnt,
 852         .flags         = 0,
 853     };
 854
 855     for (i = 0; i < pic->nb_refs; i++) {
 856         VAAPIEncodePicture      *ref = pic->refs[i];
 857         VAAPIEncodeH265Picture *href;
 858
 859         av_assert0(ref && ref->encode_order < pic->encode_order);
 860         href = ref->priv_data;
 861
 862         vpic->reference_frames[i] = (VAPictureHEVC) {
 863             .picture_id    = ref->recon_surface,
 864             .pic_order_cnt = href->pic_order_cnt,
 865             .flags = (ref->display_order < pic->display_order ?
 866                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |
 867                      (ref->display_order > pic->display_order ?
 868                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),
 869         };
 870     }
 871     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
 872         vpic->reference_frames[i] = (VAPictureHEVC) {
 873             .picture_id = VA_INVALID_ID,
 874             .flags      = VA_PICTURE_HEVC_INVALID,
 875         };
 876     }
 877
 878     vpic->coded_buf = pic->output_buffer;
 879
 880     vpic->nal_unit_type = hpic->slice_nal_unit;
 881
 882     switch (pic->type) {
 883     case PICTURE_TYPE_IDR:
 884         vpic->pic_fields.bits.idr_pic_flag       = 1;
 885         vpic->pic_fields.bits.coding_type        = 1;
 886         vpic->pic_fields.bits.reference_pic_flag = 1;
 887         break;
 888     case PICTURE_TYPE_I:
 889         vpic->pic_fields.bits.idr_pic_flag       = 0;
 890         vpic->pic_fields.bits.coding_type        = 1;
 891         vpic->pic_fields.bits.reference_pic_flag = 1;
 892         break;
 893     case PICTURE_TYPE_P:
 894         vpic->pic_fields.bits.idr_pic_flag       = 0;
 895         vpic->pic_fields.bits.coding_type        = 2;
 896         vpic->pic_fields.bits.reference_pic_flag = 1;
 897         break;
 898     case PICTURE_TYPE_B:
 899         vpic->pic_fields.bits.idr_pic_flag       = 0;
 900         vpic->pic_fields.bits.coding_type        = 3;
 901         vpic->pic_fields.bits.reference_pic_flag = 0;
 902         break;
 903     default:
 904         av_assert0(0 && "invalid picture type");
 905     }
 906
 907     return 0;
 908 }
 909
 910 static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
 911                                                VAAPIEncodePicture *pic,
 912                                                VAAPIEncodeSlice *slice)
 913 {
 914     VAAPIEncodeH265Context           *priv = avctx->priv_data;
 915     VAAPIEncodeH265Picture           *hpic = pic->priv_data;
 916     const H265RawSPS                  *sps = &priv->raw_sps;
 917     const H265RawPPS                  *pps = &priv->raw_pps;
 918     H265RawSliceHeader                 *sh = &priv->raw_slice.header;
 919     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;
 920     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;
 921     int i;
 922
 923     sh->nal_unit_header = (H265RawNALUnitHeader) {
 924         .nal_unit_type         = hpic->slice_nal_unit,
 925         .nuh_layer_id          = 0,
 926         .nuh_temporal_id_plus1 = 1,
 927     };
 928
 929     sh->slice_pic_parameter_set_id      = pps->pps_pic_parameter_set_id;
 930
 931     sh->first_slice_segment_in_pic_flag = slice->index == 0;
 932     sh->slice_segment_address           = slice->block_start;
 933
 934     sh->slice_type = hpic->slice_type;
 935
 936     sh->slice_pic_order_cnt_lsb = hpic->pic_order_cnt &
 937         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;
 938
 939     if (pic->type != PICTURE_TYPE_IDR) {
 940         H265RawSTRefPicSet *rps;
 941         const VAAPIEncodeH265Picture *strp;
 942         int rps_poc[MAX_DPB_SIZE];
 943         int rps_used[MAX_DPB_SIZE];
 944         int i, j, poc, rps_pics;
 945
 946         sh->short_term_ref_pic_set_sps_flag = 0;
 947
 948         rps = &sh->short_term_ref_pic_set;
 949         memset(rps, 0, sizeof(*rps));
 950
 951         rps_pics = 0;
 952         for (i = 0; i < pic->nb_refs; i++) {
 953             strp = pic->refs[i]->priv_data;
 954             rps_poc[rps_pics]  = strp->pic_order_cnt;
 955             rps_used[rps_pics] = 1;
 956             ++rps_pics;
 957         }
 958         for (i = 0; i < pic->nb_dpb_pics; i++) {
 959             if (pic->dpb[i] == pic)
 960                 continue;
 961             for (j = 0; j < pic->nb_refs; j++) {
 962                 if (pic->dpb[i] == pic->refs[j])
 963                     break;
 964             }
 965             if (j < pic->nb_refs)
 966                 continue;
 967             strp = pic->dpb[i]->priv_data;
 968             rps_poc[rps_pics]  = strp->pic_order_cnt;
 969             rps_used[rps_pics] = 0;
 970             ++rps_pics;
 971         }
 972
 973         for (i = 1; i < rps_pics; i++) {
 974             for (j = i; j > 0; j--) {
 975                 if (rps_poc[j] > rps_poc[j - 1])
 976                     break;
 977                 av_assert0(rps_poc[j] != rps_poc[j - 1]);
 978                 FFSWAP(int, rps_poc[j],  rps_poc[j - 1]);
 979                 FFSWAP(int, rps_used[j], rps_used[j - 1]);
 980             }
 981         }
 982
 983         av_log(avctx, AV_LOG_DEBUG, "RPS for POC %d:",
 984                hpic->pic_order_cnt);
 985         for (i = 0; i < rps_pics; i++) {
 986             av_log(avctx, AV_LOG_DEBUG, " (%d,%d)",
 987                    rps_poc[i], rps_used[i]);
 988         }
 989         av_log(avctx, AV_LOG_DEBUG, "\n");
 990
 991         for (i = 0; i < rps_pics; i++) {
 992             av_assert0(rps_poc[i] != hpic->pic_order_cnt);
 993             if (rps_poc[i] > hpic->pic_order_cnt)
 994                 break;
 995         }
 996
 997         rps->num_negative_pics = i;
 998         poc = hpic->pic_order_cnt;
 999         for (j = i - 1; j >= 0; j--) {
1000             rps->delta_poc_s0_minus1[i - 1 - j] = poc - rps_poc[j] - 1;
1001             rps->used_by_curr_pic_s0_flag[i - 1 - j] = rps_used[j];
1002             poc = rps_poc[j];
1003         }
1004
1005         rps->num_positive_pics = rps_pics - i;
1006         poc = hpic->pic_order_cnt;
1007         for (j = i; j < rps_pics; j++) {
1008             rps->delta_poc_s1_minus1[j - i] = rps_poc[j] - poc - 1;
1009             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];
1010             poc = rps_poc[j];
1011         }
1012
1013         sh->num_long_term_sps  = 0;
1014         sh->num_long_term_pics = 0;
1015
1016         sh->slice_temporal_mvp_enabled_flag =
1017             sps->sps_temporal_mvp_enabled_flag;
1018         if (sh->slice_temporal_mvp_enabled_flag) {
1019             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;
1020             sh->collocated_ref_idx      = 0;
1021         }
1022
1023         sh->num_ref_idx_active_override_flag = 0;
1024         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;
1025         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;
1026     }
1027
1028     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =
1029         sps->sample_adaptive_offset_enabled_flag;
1030
1031     if (pic->type == PICTURE_TYPE_B)
1032         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);
1033     else if (pic->type == PICTURE_TYPE_P)
1034         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);
1035     else
1036         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);
1037
1038
1039     *vslice = (VAEncSliceParameterBufferHEVC) {
1040         .slice_segment_address = sh->slice_segment_address,
1041         .num_ctu_in_slice      = slice->block_size,
1042
1043         .slice_type                 = sh->slice_type,
1044         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,
1045
1046         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,
1047         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,
1048
1049         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,
1050         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,
1051
1052         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,
1053
1054         .slice_qp_delta     = sh->slice_qp_delta,
1055         .slice_cb_qp_offset = sh->slice_cb_qp_offset,
1056         .slice_cr_qp_offset = sh->slice_cr_qp_offset,
1057
1058         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,
1059         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,
1060
1061         .slice_fields.bits = {
1062             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,
1063             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,
1064             .colour_plane_id              = sh->colour_plane_id,
1065             .slice_temporal_mvp_enabled_flag =
1066                 sh->slice_temporal_mvp_enabled_flag,
1067             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,
1068             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,
1069             .num_ref_idx_active_override_flag =
1070                 sh->num_ref_idx_active_override_flag,
1071             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,
1072             .cabac_init_flag              = sh->cabac_init_flag,
1073             .slice_deblocking_filter_disabled_flag =
1074                 sh->slice_deblocking_filter_disabled_flag,
1075             .slice_loop_filter_across_slices_enabled_flag =
1076                 sh->slice_loop_filter_across_slices_enabled_flag,
1077             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,
1078         },
1079     };
1080
1081     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
1082         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
1083         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;
1084         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
1085         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;
1086     }
1087
1088     av_assert0(pic->nb_refs <= 2);
1089     if (pic->nb_refs >= 1) {
1090         // Backward reference for P- or B-frame.
1091         av_assert0(pic->type == PICTURE_TYPE_P ||
1092                    pic->type == PICTURE_TYPE_B);
1093         vslice->ref_pic_list0[0] = vpic->reference_frames[0];
1094     }
1095     if (pic->nb_refs >= 2) {
1096         // Forward reference for B-frame.
1097         av_assert0(pic->type == PICTURE_TYPE_B);
1098         vslice->ref_pic_list1[0] = vpic->reference_frames[1];
1099     }
1100
1101     return 0;
1102 }
1103
1104 static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
1105 {
1106     VAAPIEncodeContext      *ctx = avctx->priv_data;
1107     VAAPIEncodeH265Context *priv = avctx->priv_data;
1108     int err;
1109
1110     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);
1111     if (err < 0)
1112         return err;
1113
1114     if (ctx->va_rc_mode == VA_RC_CQP) {
1115         // Note that VAAPI only supports positive QP values - the range is
1116         // therefore always bounded below by 1, even in 10-bit mode where
1117         // it should go down to -12.
1118
1119         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1120         if (avctx->i_quant_factor > 0.0)
1121             priv->fixed_qp_idr =
1122                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1123                          avctx->i_quant_offset) + 0.5, 1, 51);
1124         else
1125             priv->fixed_qp_idr = priv->fixed_qp_p;
1126         if (avctx->b_quant_factor > 0.0)
1127             priv->fixed_qp_b =
1128                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1129                          avctx->b_quant_offset) + 0.5, 1, 51);
1130         else
1131             priv->fixed_qp_b = priv->fixed_qp_p;
1132
1133         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1134                "%d / %d / %d for IDR- / P- / B-frames.\n",
1135                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1136
1137     } else {
1138         // These still need to be set for init_qp/slice_qp_delta.
1139         priv->fixed_qp_idr = 30;
1140         priv->fixed_qp_p   = 30;
1141         priv->fixed_qp_b   = 30;
1142     }
1143
1144     ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
1145
1146     return 0;
1147 }
1148
1149 static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {
1150     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },
1151     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },
1152 #if VA_CHECK_VERSION(0, 37, 0)
1153     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },
1154     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },
1155 #endif
1156 #if VA_CHECK_VERSION(1, 2, 0)
1157     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 0, VAProfileHEVCMain422_10 },
1158     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 0, VAProfileHEVCMain422_10 },
1159 #endif
1160     { FF_PROFILE_UNKNOWN }
1161 };
1162
1163 static const VAAPIEncodeType vaapi_encode_type_h265 = {
1164     .profiles              = vaapi_encode_h265_profiles,
1165
1166     .flags                 = FLAG_SLICE_CONTROL |
1167                              FLAG_B_PICTURES |
1168                              FLAG_B_PICTURE_REFERENCES |
1169                              FLAG_NON_IDR_KEY_PICTURES,
1170
1171     .default_quality       = 25,
1172
1173     .configure             = &vaapi_encode_h265_configure,
1174
1175     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),
1176
1177     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),
1178     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,
1179
1180     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),
1181     .init_picture_params   = &vaapi_encode_h265_init_picture_params,
1182
1183     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),
1184     .init_slice_params     = &vaapi_encode_h265_init_slice_params,
1185
1186     .sequence_header_type  = VAEncPackedHeaderSequence,
1187     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,
1188
1189     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,
1190     .write_slice_header    = &vaapi_encode_h265_write_slice_header,
1191
1192     .write_extra_header    = &vaapi_encode_h265_write_extra_header,
1193 };
1194
1195 static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
1196 {
1197     VAAPIEncodeContext      *ctx = avctx->priv_data;
1198     VAAPIEncodeH265Context *priv = avctx->priv_data;
1199
1200     ctx->codec = &vaapi_encode_type_h265;
1201
1202     if (avctx->profile == FF_PROFILE_UNKNOWN)
1203         avctx->profile = priv->profile;
1204     if (avctx->level == FF_LEVEL_UNKNOWN)
1205         avctx->level = priv->level;
1206
1207     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1208         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1209                "in 8-bit unsigned integer.\n", avctx->level);
1210         return AVERROR(EINVAL);
1211     }
1212
1213     ctx->desired_packed_headers =
1214         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.
1215         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
1216         VA_ENC_PACKED_HEADER_MISC;      // SEI
1217
1218     ctx->surface_width  = FFALIGN(avctx->width,  16);
1219     ctx->surface_height = FFALIGN(avctx->height, 16);
1220
1221     // CTU size is currently hard-coded to 32.
1222     ctx->slice_block_width = ctx->slice_block_height = 32;
1223
1224     if (priv->qp > 0)
1225         ctx->explicit_qp = priv->qp;
1226
1227     return ff_vaapi_encode_init(avctx);
1228 }
1229
1230 static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)
1231 {
1232     VAAPIEncodeH265Context *priv = avctx->priv_data;
1233
1234     ff_cbs_fragment_free(&priv->current_access_unit);
1235     ff_cbs_close(&priv->cbc);
1236
1237     return ff_vaapi_encode_close(avctx);
1238 }
1239
1240 #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)
1241 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1242 static const AVOption vaapi_encode_h265_options[] = {
1243     VAAPI_ENCODE_COMMON_OPTIONS,
1244     VAAPI_ENCODE_RC_OPTIONS,
1245
1246     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1247       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1248
1249     { "aud", "Include AUD",
1250       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1251
1252     { "profile", "Set profile (general_profile_idc)",
1253       OFFSET(profile), AV_OPT_TYPE_INT,
1254       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },
1255
1256 #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1257       { .i64 = value }, 0, 0, FLAGS, "profile"
1258     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },
1259     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },
1260     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },
1261 #undef PROFILE
1262
1263     { "tier", "Set tier (general_tier_flag)",
1264       OFFSET(tier), AV_OPT_TYPE_INT,
1265       { .i64 = 0 }, 0, 1, FLAGS, "tier" },
1266     { "main", NULL, 0, AV_OPT_TYPE_CONST,
1267       { .i64 = 0 }, 0, 0, FLAGS, "tier" },
1268     { "high", NULL, 0, AV_OPT_TYPE_CONST,
1269       { .i64 = 1 }, 0, 0, FLAGS, "tier" },
1270
1271     { "level", "Set level (general_level_idc)",
1272       OFFSET(level), AV_OPT_TYPE_INT,
1273       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1274
1275 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1276       { .i64 = value }, 0, 0, FLAGS, "level"
1277     { LEVEL("1",    30) },
1278     { LEVEL("2",    60) },
1279     { LEVEL("2.1",  63) },
1280     { LEVEL("3",    90) },
1281     { LEVEL("3.1",  93) },
1282     { LEVEL("4",   120) },
1283     { LEVEL("4.1", 123) },
1284     { LEVEL("5",   150) },
1285     { LEVEL("5.1", 153) },
1286     { LEVEL("5.2", 156) },
1287     { LEVEL("6",   180) },
1288     { LEVEL("6.1", 183) },
1289     { LEVEL("6.2", 186) },
1290 #undef LEVEL
1291
1292     { "sei", "Set SEI to include",
1293       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1294       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1295       0, INT_MAX, FLAGS, "sei" },
1296     { "hdr",
1297       "Include HDR metadata for mastering display colour volume "
1298       "and content light level information",
1299       0, AV_OPT_TYPE_CONST,
1300       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1301       INT_MIN, INT_MAX, FLAGS, "sei" },
1302
1303     { "tiles", "Tile columns x rows",
1304       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,
1305       { .str = NULL }, 0, 0, FLAGS },
1306
1307     { NULL },
1308 };
1309
1310 static const AVCodecDefault vaapi_encode_h265_defaults[] = {
1311     { "b",              "0"   },
1312     { "bf",             "2"   },
1313     { "g",              "120" },
1314     { "i_qfactor",      "1"   },
1315     { "i_qoffset",      "0"   },
1316     { "b_qfactor",      "6/5" },
1317     { "b_qoffset",      "0"   },
1318     { "qmin",           "-1"  },
1319     { "qmax",           "-1"  },
1320     { NULL },
1321 };
1322
1323 static const AVClass vaapi_encode_h265_class = {
1324     .class_name = "h265_vaapi",
1325     .item_name  = av_default_item_name,
1326     .option     = vaapi_encode_h265_options,
1327     .version    = LIBAVUTIL_VERSION_INT,
1328 };
1329
1330 AVCodec ff_hevc_vaapi_encoder = {
1331     .name           = "hevc_vaapi",
1332     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),
1333     .type           = AVMEDIA_TYPE_VIDEO,
1334     .id             = AV_CODEC_ID_HEVC,
1335     .priv_data_size = sizeof(VAAPIEncodeH265Context),
1336     .init           = &vaapi_encode_h265_init,
1337     .receive_packet = &ff_vaapi_encode_receive_packet,
1338     .close          = &vaapi_encode_h265_close,
1339     .priv_class     = &vaapi_encode_h265_class,
1340     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1341     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
1342     .defaults       = vaapi_encode_h265_defaults,
1343     .pix_fmts = (const enum AVPixelFormat[]) {
1344         AV_PIX_FMT_VAAPI,
1345         AV_PIX_FMT_NONE,
1346     },
1347     .hw_configs     = ff_vaapi_encode_hw_configs,
1348     .wrapper_name   = "vaapi",
1349 };