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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     pps->pps_loop_filter_across_slices_enabled_flag = 1;
 559
 560     if (ctx->tile_rows && ctx->tile_cols) {
 561         pps->tiles_enabled_flag         = 1;
 562         pps->uniform_spacing_flag       = 1;
 563
 564         pps->num_tile_rows_minus1       = ctx->tile_rows - 1;
 565         pps->num_tile_columns_minus1    = ctx->tile_cols - 1;
 566
 567         pps->loop_filter_across_tiles_enabled_flag = 1;
 568
 569         for (i = 0; i <= pps->num_tile_rows_minus1; i++)
 570             pps->row_height_minus1[i]   = ctx->row_height[i] - 1;
 571         for (i = 0; i <= pps->num_tile_columns_minus1; i++)
 572             pps->column_width_minus1[i] = ctx->col_width[i] - 1;
 573     }
 574
 575     // Fill VAAPI parameter buffers.
 576
 577     *vseq = (VAEncSequenceParameterBufferHEVC) {
 578         .general_profile_idc = vps->profile_tier_level.general_profile_idc,
 579         .general_level_idc   = vps->profile_tier_level.general_level_idc,
 580         .general_tier_flag   = vps->profile_tier_level.general_tier_flag,
 581
 582         .intra_period     = ctx->gop_size,
 583         .intra_idr_period = ctx->gop_size,
 584         .ip_period        = ctx->b_per_p + 1,
 585         .bits_per_second  = ctx->va_bit_rate,
 586
 587         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,
 588         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,
 589
 590         .seq_fields.bits = {
 591             .chroma_format_idc             = sps->chroma_format_idc,
 592             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,
 593             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,
 594             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,
 595             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,
 596             .strong_intra_smoothing_enabled_flag =
 597                 sps->strong_intra_smoothing_enabled_flag,
 598             .amp_enabled_flag              = sps->amp_enabled_flag,
 599             .sample_adaptive_offset_enabled_flag =
 600                 sps->sample_adaptive_offset_enabled_flag,
 601             .pcm_enabled_flag              = sps->pcm_enabled_flag,
 602             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,
 603             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,
 604         },
 605
 606         .log2_min_luma_coding_block_size_minus3 =
 607             sps->log2_min_luma_coding_block_size_minus3,
 608         .log2_diff_max_min_luma_coding_block_size =
 609             sps->log2_diff_max_min_luma_coding_block_size,
 610         .log2_min_transform_block_size_minus2 =
 611             sps->log2_min_luma_transform_block_size_minus2,
 612         .log2_diff_max_min_transform_block_size =
 613             sps->log2_diff_max_min_luma_transform_block_size,
 614         .max_transform_hierarchy_depth_inter =
 615             sps->max_transform_hierarchy_depth_inter,
 616         .max_transform_hierarchy_depth_intra =
 617             sps->max_transform_hierarchy_depth_intra,
 618
 619         .pcm_sample_bit_depth_luma_minus1 =
 620             sps->pcm_sample_bit_depth_luma_minus1,
 621         .pcm_sample_bit_depth_chroma_minus1 =
 622             sps->pcm_sample_bit_depth_chroma_minus1,
 623         .log2_min_pcm_luma_coding_block_size_minus3 =
 624             sps->log2_min_pcm_luma_coding_block_size_minus3,
 625         .log2_max_pcm_luma_coding_block_size_minus3 =
 626             sps->log2_min_pcm_luma_coding_block_size_minus3 +
 627             sps->log2_diff_max_min_pcm_luma_coding_block_size,
 628
 629         .vui_parameters_present_flag = 0,
 630     };
 631
 632     *vpic = (VAEncPictureParameterBufferHEVC) {
 633         .decoded_curr_pic = {
 634             .picture_id = VA_INVALID_ID,
 635             .flags      = VA_PICTURE_HEVC_INVALID,
 636         },
 637
 638         .coded_buf = VA_INVALID_ID,
 639
 640         .collocated_ref_pic_index = 0xff,
 641
 642         .last_picture = 0,
 643
 644         .pic_init_qp            = pps->init_qp_minus26 + 26,
 645         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,
 646         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,
 647         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,
 648
 649         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,
 650         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,
 651
 652         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,
 653         .ctu_max_bitsize_allowed          = 0,
 654
 655         .num_ref_idx_l0_default_active_minus1 =
 656             pps->num_ref_idx_l0_default_active_minus1,
 657         .num_ref_idx_l1_default_active_minus1 =
 658             pps->num_ref_idx_l1_default_active_minus1,
 659
 660         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,
 661
 662         .pic_fields.bits = {
 663             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,
 664             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,
 665             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,
 666             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,
 667             .weighted_pred_flag             = pps->weighted_pred_flag,
 668             .weighted_bipred_flag           = pps->weighted_bipred_flag,
 669             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,
 670             .tiles_enabled_flag             = pps->tiles_enabled_flag,
 671             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,
 672             .loop_filter_across_tiles_enabled_flag =
 673                 pps->loop_filter_across_tiles_enabled_flag,
 674             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |
 675                                                pps->pps_scaling_list_data_present_flag),
 676             .screen_content_flag            = 0,
 677             .enable_gpu_weighted_prediction = 0,
 678             .no_output_of_prior_pics_flag   = 0,
 679         },
 680     };
 681
 682     if (pps->tiles_enabled_flag) {
 683         for (i = 0; i <= vpic->num_tile_rows_minus1; i++)
 684             vpic->row_height_minus1[i]   = pps->row_height_minus1[i];
 685         for (i = 0; i <= vpic->num_tile_columns_minus1; i++)
 686             vpic->column_width_minus1[i] = pps->column_width_minus1[i];
 687     }
 688
 689     return 0;
 690 }
 691
 692 static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
 693                                                  VAAPIEncodePicture *pic)
 694 {
 695     VAAPIEncodeContext               *ctx = avctx->priv_data;
 696     VAAPIEncodeH265Context          *priv = avctx->priv_data;
 697     VAAPIEncodeH265Picture          *hpic = pic->priv_data;
 698     VAAPIEncodePicture              *prev = pic->prev;
 699     VAAPIEncodeH265Picture         *hprev = prev ? prev->priv_data : NULL;
 700     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
 701     int i;
 702
 703     if (pic->type == PICTURE_TYPE_IDR) {
 704         av_assert0(pic->display_order == pic->encode_order);
 705
 706         hpic->last_idr_frame = pic->display_order;
 707
 708         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;
 709         hpic->slice_type     = HEVC_SLICE_I;
 710         hpic->pic_type       = 0;
 711     } else {
 712         av_assert0(prev);
 713         hpic->last_idr_frame = hprev->last_idr_frame;
 714
 715         if (pic->type == PICTURE_TYPE_I) {
 716             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;
 717             hpic->slice_type     = HEVC_SLICE_I;
 718             hpic->pic_type       = 0;
 719         } else if (pic->type == PICTURE_TYPE_P) {
 720             av_assert0(pic->refs[0]);
 721             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;
 722             hpic->slice_type     = HEVC_SLICE_P;
 723             hpic->pic_type       = 1;
 724         } else {
 725             VAAPIEncodePicture *irap_ref;
 726             av_assert0(pic->refs[0] && pic->refs[1]);
 727             for (irap_ref = pic; irap_ref; irap_ref = irap_ref->refs[1]) {
 728                 if (irap_ref->type == PICTURE_TYPE_I)
 729                     break;
 730             }
 731             if (pic->b_depth == ctx->max_b_depth) {
 732                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N
 733                                                 : HEVC_NAL_TRAIL_N;
 734             } else {
 735                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R
 736                                                 : HEVC_NAL_TRAIL_R;
 737             }
 738             hpic->slice_type = HEVC_SLICE_B;
 739             hpic->pic_type   = 2;
 740         }
 741     }
 742     hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
 743
 744     if (priv->aud) {
 745         priv->aud_needed = 1;
 746         priv->raw_aud = (H265RawAUD) {
 747             .nal_unit_header = {
 748                 .nal_unit_type         = HEVC_NAL_AUD,
 749                 .nuh_layer_id          = 0,
 750                 .nuh_temporal_id_plus1 = 1,
 751             },
 752             .pic_type = hpic->pic_type,
 753         };
 754     } else {
 755         priv->aud_needed = 0;
 756     }
 757
 758     priv->sei_needed = 0;
 759
 760     // Only look for the metadata on I/IDR frame on the output. We
 761     // may force an IDR frame on the output where the medadata gets
 762     // changed on the input frame.
 763     if ((priv->sei & SEI_MASTERING_DISPLAY) &&
 764         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 765         AVFrameSideData *sd =
 766             av_frame_get_side_data(pic->input_image,
 767                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
 768
 769         if (sd) {
 770             AVMasteringDisplayMetadata *mdm =
 771                 (AVMasteringDisplayMetadata *)sd->data;
 772
 773             // SEI is needed when both the primaries and luminance are set
 774             if (mdm->has_primaries && mdm->has_luminance) {
 775                 H265RawSEIMasteringDisplayColourVolume *mdcv =
 776                     &priv->sei_mastering_display;
 777                 const int mapping[3] = {1, 2, 0};
 778                 const int chroma_den = 50000;
 779                 const int luma_den   = 10000;
 780
 781                 for (i = 0; i < 3; i++) {
 782                     const int j = mapping[i];
 783                     mdcv->display_primaries_x[i] =
 784                         FFMIN(lrint(chroma_den *
 785                                     av_q2d(mdm->display_primaries[j][0])),
 786                               chroma_den);
 787                     mdcv->display_primaries_y[i] =
 788                         FFMIN(lrint(chroma_den *
 789                                     av_q2d(mdm->display_primaries[j][1])),
 790                               chroma_den);
 791                 }
 792
 793                 mdcv->white_point_x =
 794                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[0])),
 795                           chroma_den);
 796                 mdcv->white_point_y =
 797                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[1])),
 798                           chroma_den);
 799
 800                 mdcv->max_display_mastering_luminance =
 801                     lrint(luma_den * av_q2d(mdm->max_luminance));
 802                 mdcv->min_display_mastering_luminance =
 803                     FFMIN(lrint(luma_den * av_q2d(mdm->min_luminance)),
 804                           mdcv->max_display_mastering_luminance);
 805
 806                 priv->sei_needed |= SEI_MASTERING_DISPLAY;
 807             }
 808         }
 809     }
 810
 811     if ((priv->sei & SEI_CONTENT_LIGHT_LEVEL) &&
 812         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {
 813         AVFrameSideData *sd =
 814             av_frame_get_side_data(pic->input_image,
 815                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
 816
 817         if (sd) {
 818             AVContentLightMetadata *clm =
 819                 (AVContentLightMetadata *)sd->data;
 820             H265RawSEIContentLightLevelInfo *clli =
 821                 &priv->sei_content_light_level;
 822
 823             clli->max_content_light_level     = FFMIN(clm->MaxCLL,  65535);
 824             clli->max_pic_average_light_level = FFMIN(clm->MaxFALL, 65535);
 825
 826             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;
 827         }
 828     }
 829
 830     vpic->decoded_curr_pic = (VAPictureHEVC) {
 831         .picture_id    = pic->recon_surface,
 832         .pic_order_cnt = hpic->pic_order_cnt,
 833         .flags         = 0,
 834     };
 835
 836     for (i = 0; i < pic->nb_refs; i++) {
 837         VAAPIEncodePicture      *ref = pic->refs[i];
 838         VAAPIEncodeH265Picture *href;
 839
 840         av_assert0(ref && ref->encode_order < pic->encode_order);
 841         href = ref->priv_data;
 842
 843         vpic->reference_frames[i] = (VAPictureHEVC) {
 844             .picture_id    = ref->recon_surface,
 845             .pic_order_cnt = href->pic_order_cnt,
 846             .flags = (ref->display_order < pic->display_order ?
 847                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |
 848                      (ref->display_order > pic->display_order ?
 849                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),
 850         };
 851     }
 852     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
 853         vpic->reference_frames[i] = (VAPictureHEVC) {
 854             .picture_id = VA_INVALID_ID,
 855             .flags      = VA_PICTURE_HEVC_INVALID,
 856         };
 857     }
 858
 859     vpic->coded_buf = pic->output_buffer;
 860
 861     vpic->nal_unit_type = hpic->slice_nal_unit;
 862
 863     switch (pic->type) {
 864     case PICTURE_TYPE_IDR:
 865         vpic->pic_fields.bits.idr_pic_flag       = 1;
 866         vpic->pic_fields.bits.coding_type        = 1;
 867         vpic->pic_fields.bits.reference_pic_flag = 1;
 868         break;
 869     case PICTURE_TYPE_I:
 870         vpic->pic_fields.bits.idr_pic_flag       = 0;
 871         vpic->pic_fields.bits.coding_type        = 1;
 872         vpic->pic_fields.bits.reference_pic_flag = 1;
 873         break;
 874     case PICTURE_TYPE_P:
 875         vpic->pic_fields.bits.idr_pic_flag       = 0;
 876         vpic->pic_fields.bits.coding_type        = 2;
 877         vpic->pic_fields.bits.reference_pic_flag = 1;
 878         break;
 879     case PICTURE_TYPE_B:
 880         vpic->pic_fields.bits.idr_pic_flag       = 0;
 881         vpic->pic_fields.bits.coding_type        = 3;
 882         vpic->pic_fields.bits.reference_pic_flag = 0;
 883         break;
 884     default:
 885         av_assert0(0 && "invalid picture type");
 886     }
 887
 888     return 0;
 889 }
 890
 891 static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
 892                                                VAAPIEncodePicture *pic,
 893                                                VAAPIEncodeSlice *slice)
 894 {
 895     VAAPIEncodeH265Context           *priv = avctx->priv_data;
 896     VAAPIEncodeH265Picture           *hpic = pic->priv_data;
 897     const H265RawSPS                  *sps = &priv->raw_sps;
 898     const H265RawPPS                  *pps = &priv->raw_pps;
 899     H265RawSliceHeader                 *sh = &priv->raw_slice.header;
 900     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;
 901     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;
 902     int i;
 903
 904     sh->nal_unit_header = (H265RawNALUnitHeader) {
 905         .nal_unit_type         = hpic->slice_nal_unit,
 906         .nuh_layer_id          = 0,
 907         .nuh_temporal_id_plus1 = 1,
 908     };
 909
 910     sh->slice_pic_parameter_set_id      = pps->pps_pic_parameter_set_id;
 911
 912     sh->first_slice_segment_in_pic_flag = slice->index == 0;
 913     sh->slice_segment_address           = slice->block_start;
 914
 915     sh->slice_type = hpic->slice_type;
 916
 917     sh->slice_pic_order_cnt_lsb = hpic->pic_order_cnt &
 918         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;
 919
 920     if (pic->type != PICTURE_TYPE_IDR) {
 921         H265RawSTRefPicSet *rps;
 922         const VAAPIEncodeH265Picture *strp;
 923         int rps_poc[MAX_DPB_SIZE];
 924         int rps_used[MAX_DPB_SIZE];
 925         int i, j, poc, rps_pics;
 926
 927         sh->short_term_ref_pic_set_sps_flag = 0;
 928
 929         rps = &sh->short_term_ref_pic_set;
 930         memset(rps, 0, sizeof(*rps));
 931
 932         rps_pics = 0;
 933         for (i = 0; i < pic->nb_refs; i++) {
 934             strp = pic->refs[i]->priv_data;
 935             rps_poc[rps_pics]  = strp->pic_order_cnt;
 936             rps_used[rps_pics] = 1;
 937             ++rps_pics;
 938         }
 939         for (i = 0; i < pic->nb_dpb_pics; i++) {
 940             if (pic->dpb[i] == pic)
 941                 continue;
 942             for (j = 0; j < pic->nb_refs; j++) {
 943                 if (pic->dpb[i] == pic->refs[j])
 944                     break;
 945             }
 946             if (j < pic->nb_refs)
 947                 continue;
 948             strp = pic->dpb[i]->priv_data;
 949             rps_poc[rps_pics]  = strp->pic_order_cnt;
 950             rps_used[rps_pics] = 0;
 951             ++rps_pics;
 952         }
 953
 954         for (i = 1; i < rps_pics; i++) {
 955             for (j = i; j > 0; j--) {
 956                 if (rps_poc[j] > rps_poc[j - 1])
 957                     break;
 958                 av_assert0(rps_poc[j] != rps_poc[j - 1]);
 959                 FFSWAP(int, rps_poc[j],  rps_poc[j - 1]);
 960                 FFSWAP(int, rps_used[j], rps_used[j - 1]);
 961             }
 962         }
 963
 964         av_log(avctx, AV_LOG_DEBUG, "RPS for POC %d:",
 965                hpic->pic_order_cnt);
 966         for (i = 0; i < rps_pics; i++) {
 967             av_log(avctx, AV_LOG_DEBUG, " (%d,%d)",
 968                    rps_poc[i], rps_used[i]);
 969         }
 970         av_log(avctx, AV_LOG_DEBUG, "\n");
 971
 972         for (i = 0; i < rps_pics; i++) {
 973             av_assert0(rps_poc[i] != hpic->pic_order_cnt);
 974             if (rps_poc[i] > hpic->pic_order_cnt)
 975                 break;
 976         }
 977
 978         rps->num_negative_pics = i;
 979         poc = hpic->pic_order_cnt;
 980         for (j = i - 1; j >= 0; j--) {
 981             rps->delta_poc_s0_minus1[i - 1 - j] = poc - rps_poc[j] - 1;
 982             rps->used_by_curr_pic_s0_flag[i - 1 - j] = rps_used[j];
 983             poc = rps_poc[j];
 984         }
 985
 986         rps->num_positive_pics = rps_pics - i;
 987         poc = hpic->pic_order_cnt;
 988         for (j = i; j < rps_pics; j++) {
 989             rps->delta_poc_s1_minus1[j - i] = rps_poc[j] - poc - 1;
 990             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];
 991             poc = rps_poc[j];
 992         }
 993
 994         sh->num_long_term_sps  = 0;
 995         sh->num_long_term_pics = 0;
 996
 997         sh->slice_temporal_mvp_enabled_flag =
 998             sps->sps_temporal_mvp_enabled_flag;
 999         if (sh->slice_temporal_mvp_enabled_flag) {
1000             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;
1001             sh->collocated_ref_idx      = 0;
1002         }
1003
1004         sh->num_ref_idx_active_override_flag = 0;
1005         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;
1006         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;
1007     }
1008
1009     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =
1010         sps->sample_adaptive_offset_enabled_flag;
1011
1012     if (pic->type == PICTURE_TYPE_B)
1013         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);
1014     else if (pic->type == PICTURE_TYPE_P)
1015         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);
1016     else
1017         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);
1018
1019
1020     *vslice = (VAEncSliceParameterBufferHEVC) {
1021         .slice_segment_address = sh->slice_segment_address,
1022         .num_ctu_in_slice      = slice->block_size,
1023
1024         .slice_type                 = sh->slice_type,
1025         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,
1026
1027         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,
1028         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,
1029
1030         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,
1031         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,
1032
1033         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,
1034
1035         .slice_qp_delta     = sh->slice_qp_delta,
1036         .slice_cb_qp_offset = sh->slice_cb_qp_offset,
1037         .slice_cr_qp_offset = sh->slice_cr_qp_offset,
1038
1039         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,
1040         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,
1041
1042         .slice_fields.bits = {
1043             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,
1044             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,
1045             .colour_plane_id              = sh->colour_plane_id,
1046             .slice_temporal_mvp_enabled_flag =
1047                 sh->slice_temporal_mvp_enabled_flag,
1048             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,
1049             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,
1050             .num_ref_idx_active_override_flag =
1051                 sh->num_ref_idx_active_override_flag,
1052             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,
1053             .cabac_init_flag              = sh->cabac_init_flag,
1054             .slice_deblocking_filter_disabled_flag =
1055                 sh->slice_deblocking_filter_disabled_flag,
1056             .slice_loop_filter_across_slices_enabled_flag =
1057                 sh->slice_loop_filter_across_slices_enabled_flag,
1058             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,
1059         },
1060     };
1061
1062     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
1063         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
1064         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;
1065         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
1066         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;
1067     }
1068
1069     av_assert0(pic->nb_refs <= 2);
1070     if (pic->nb_refs >= 1) {
1071         // Backward reference for P- or B-frame.
1072         av_assert0(pic->type == PICTURE_TYPE_P ||
1073                    pic->type == PICTURE_TYPE_B);
1074         vslice->ref_pic_list0[0] = vpic->reference_frames[0];
1075     }
1076     if (pic->nb_refs >= 2) {
1077         // Forward reference for B-frame.
1078         av_assert0(pic->type == PICTURE_TYPE_B);
1079         vslice->ref_pic_list1[0] = vpic->reference_frames[1];
1080     }
1081
1082     return 0;
1083 }
1084
1085 static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
1086 {
1087     VAAPIEncodeContext      *ctx = avctx->priv_data;
1088     VAAPIEncodeH265Context *priv = avctx->priv_data;
1089     int err;
1090
1091     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);
1092     if (err < 0)
1093         return err;
1094
1095     if (ctx->va_rc_mode == VA_RC_CQP) {
1096         // Note that VAAPI only supports positive QP values - the range is
1097         // therefore always bounded below by 1, even in 10-bit mode where
1098         // it should go down to -12.
1099
1100         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1101         if (avctx->i_quant_factor > 0.0)
1102             priv->fixed_qp_idr =
1103                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1104                          avctx->i_quant_offset) + 0.5, 1, 51);
1105         else
1106             priv->fixed_qp_idr = priv->fixed_qp_p;
1107         if (avctx->b_quant_factor > 0.0)
1108             priv->fixed_qp_b =
1109                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1110                          avctx->b_quant_offset) + 0.5, 1, 51);
1111         else
1112             priv->fixed_qp_b = priv->fixed_qp_p;
1113
1114         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1115                "%d / %d / %d for IDR- / P- / B-frames.\n",
1116                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1117
1118     } else {
1119         // These still need to be set for init_qp/slice_qp_delta.
1120         priv->fixed_qp_idr = 30;
1121         priv->fixed_qp_p   = 30;
1122         priv->fixed_qp_b   = 30;
1123     }
1124
1125     ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
1126
1127     return 0;
1128 }
1129
1130 static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {
1131     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },
1132     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },
1133 #if VA_CHECK_VERSION(0, 37, 0)
1134     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },
1135     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },
1136 #endif
1137 #if VA_CHECK_VERSION(1, 2, 0)
1138     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 0, VAProfileHEVCMain422_10 },
1139     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 0, VAProfileHEVCMain422_10 },
1140 #endif
1141     { FF_PROFILE_UNKNOWN }
1142 };
1143
1144 static const VAAPIEncodeType vaapi_encode_type_h265 = {
1145     .profiles              = vaapi_encode_h265_profiles,
1146
1147     .flags                 = FLAG_SLICE_CONTROL |
1148                              FLAG_B_PICTURES |
1149                              FLAG_B_PICTURE_REFERENCES |
1150                              FLAG_NON_IDR_KEY_PICTURES,
1151
1152     .default_quality       = 25,
1153
1154     .configure             = &vaapi_encode_h265_configure,
1155
1156     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),
1157
1158     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),
1159     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,
1160
1161     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),
1162     .init_picture_params   = &vaapi_encode_h265_init_picture_params,
1163
1164     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),
1165     .init_slice_params     = &vaapi_encode_h265_init_slice_params,
1166
1167     .sequence_header_type  = VAEncPackedHeaderSequence,
1168     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,
1169
1170     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,
1171     .write_slice_header    = &vaapi_encode_h265_write_slice_header,
1172
1173     .write_extra_header    = &vaapi_encode_h265_write_extra_header,
1174 };
1175
1176 static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
1177 {
1178     VAAPIEncodeContext      *ctx = avctx->priv_data;
1179     VAAPIEncodeH265Context *priv = avctx->priv_data;
1180
1181     ctx->codec = &vaapi_encode_type_h265;
1182
1183     if (avctx->profile == FF_PROFILE_UNKNOWN)
1184         avctx->profile = priv->profile;
1185     if (avctx->level == FF_LEVEL_UNKNOWN)
1186         avctx->level = priv->level;
1187
1188     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1189         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1190                "in 8-bit unsigned integer.\n", avctx->level);
1191         return AVERROR(EINVAL);
1192     }
1193
1194     ctx->desired_packed_headers =
1195         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.
1196         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
1197         VA_ENC_PACKED_HEADER_MISC;      // SEI
1198
1199     ctx->surface_width  = FFALIGN(avctx->width,  16);
1200     ctx->surface_height = FFALIGN(avctx->height, 16);
1201
1202     // CTU size is currently hard-coded to 32.
1203     ctx->slice_block_width = ctx->slice_block_height = 32;
1204
1205     if (priv->qp > 0)
1206         ctx->explicit_qp = priv->qp;
1207
1208     return ff_vaapi_encode_init(avctx);
1209 }
1210
1211 static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)
1212 {
1213     VAAPIEncodeH265Context *priv = avctx->priv_data;
1214
1215     ff_cbs_fragment_free(&priv->current_access_unit);
1216     ff_cbs_close(&priv->cbc);
1217
1218     return ff_vaapi_encode_close(avctx);
1219 }
1220
1221 #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)
1222 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1223 static const AVOption vaapi_encode_h265_options[] = {
1224     VAAPI_ENCODE_COMMON_OPTIONS,
1225     VAAPI_ENCODE_RC_OPTIONS,
1226
1227     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1228       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1229
1230     { "aud", "Include AUD",
1231       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1232
1233     { "profile", "Set profile (general_profile_idc)",
1234       OFFSET(profile), AV_OPT_TYPE_INT,
1235       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },
1236
1237 #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1238       { .i64 = value }, 0, 0, FLAGS, "profile"
1239     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },
1240     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },
1241     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },
1242 #undef PROFILE
1243
1244     { "tier", "Set tier (general_tier_flag)",
1245       OFFSET(tier), AV_OPT_TYPE_INT,
1246       { .i64 = 0 }, 0, 1, FLAGS, "tier" },
1247     { "main", NULL, 0, AV_OPT_TYPE_CONST,
1248       { .i64 = 0 }, 0, 0, FLAGS, "tier" },
1249     { "high", NULL, 0, AV_OPT_TYPE_CONST,
1250       { .i64 = 1 }, 0, 0, FLAGS, "tier" },
1251
1252     { "level", "Set level (general_level_idc)",
1253       OFFSET(level), AV_OPT_TYPE_INT,
1254       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1255
1256 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1257       { .i64 = value }, 0, 0, FLAGS, "level"
1258     { LEVEL("1",    30) },
1259     { LEVEL("2",    60) },
1260     { LEVEL("2.1",  63) },
1261     { LEVEL("3",    90) },
1262     { LEVEL("3.1",  93) },
1263     { LEVEL("4",   120) },
1264     { LEVEL("4.1", 123) },
1265     { LEVEL("5",   150) },
1266     { LEVEL("5.1", 153) },
1267     { LEVEL("5.2", 156) },
1268     { LEVEL("6",   180) },
1269     { LEVEL("6.1", 183) },
1270     { LEVEL("6.2", 186) },
1271 #undef LEVEL
1272
1273     { "sei", "Set SEI to include",
1274       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1275       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1276       0, INT_MAX, FLAGS, "sei" },
1277     { "hdr",
1278       "Include HDR metadata for mastering display colour volume "
1279       "and content light level information",
1280       0, AV_OPT_TYPE_CONST,
1281       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },
1282       INT_MIN, INT_MAX, FLAGS, "sei" },
1283
1284     { "tiles", "Tile columns x rows",
1285       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,
1286       { .str = NULL }, 0, 0, FLAGS },
1287
1288     { NULL },
1289 };
1290
1291 static const AVCodecDefault vaapi_encode_h265_defaults[] = {
1292     { "b",              "0"   },
1293     { "bf",             "2"   },
1294     { "g",              "120" },
1295     { "i_qfactor",      "1"   },
1296     { "i_qoffset",      "0"   },
1297     { "b_qfactor",      "6/5" },
1298     { "b_qoffset",      "0"   },
1299     { "qmin",           "-1"  },
1300     { "qmax",           "-1"  },
1301     { NULL },
1302 };
1303
1304 static const AVClass vaapi_encode_h265_class = {
1305     .class_name = "h265_vaapi",
1306     .item_name  = av_default_item_name,
1307     .option     = vaapi_encode_h265_options,
1308     .version    = LIBAVUTIL_VERSION_INT,
1309 };
1310
1311 AVCodec ff_hevc_vaapi_encoder = {
1312     .name           = "hevc_vaapi",
1313     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),
1314     .type           = AVMEDIA_TYPE_VIDEO,
1315     .id             = AV_CODEC_ID_HEVC,
1316     .priv_data_size = sizeof(VAAPIEncodeH265Context),
1317     .init           = &vaapi_encode_h265_init,
1318     .receive_packet = &ff_vaapi_encode_receive_packet,
1319     .close          = &vaapi_encode_h265_close,
1320     .priv_class     = &vaapi_encode_h265_class,
1321     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1322     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
1323     .defaults       = vaapi_encode_h265_defaults,
1324     .pix_fmts = (const enum AVPixelFormat[]) {
1325         AV_PIX_FMT_VAAPI,
1326         AV_PIX_FMT_NONE,
1327     },
1328     .hw_configs     = ff_vaapi_encode_hw_configs,
1329     .wrapper_name   = "vaapi",
1330 };