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FFmpeg/libavcodec/vaapi_encode_h265.c

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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.     H265RawSlice raw_slice;

  77. 

  78.     SEIRawMasteringDisplayColourVolume sei_mastering_display;

  79.     SEIRawContentLightLevelInfo        sei_content_light_level;

  80. 

  81.     CodedBitstreamContext *cbc;

  82.     CodedBitstreamFragment current_access_unit;

  83.     int aud_needed;

  84.     int sei_needed;

  85. } VAAPIEncodeH265Context;

  86. 

  87. 

  88. static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,

  89.                                                char *data, size_t *data_len,

  90.                                                CodedBitstreamFragment *au)

  91. {

  92.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  93.     int err;

  94. 

  95.     err = ff_cbs_write_fragment_data(priv->cbc, au);

  96.     if (err < 0) {

  97.         av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");

  98.         return err;

  99.     }

  100. 

  101.     if (*data_len < 8 * au->data_size - au->data_bit_padding) {

  102.         av_log(avctx, AV_LOG_ERROR, "Access unit too large: "

  103.                "%zu < %zu.\n", *data_len,

  104.                8 * au->data_size - au->data_bit_padding);

  105.         return AVERROR(ENOSPC);

  106.     }

  107. 

  108.     memcpy(data, au->data, au->data_size);

  109.     *data_len = 8 * au->data_size - au->data_bit_padding;

  110. 

  111.     return 0;

  112. }

  113. 

  114. static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,

  115.                                      CodedBitstreamFragment *au,

  116.                                      void *nal_unit)

  117. {

  118.     H265RawNALUnitHeader *header = nal_unit;

  119.     int err;

  120. 

  121.     err = ff_cbs_insert_unit_content(au, -1,

  122.                                      header->nal_unit_type, nal_unit, NULL);

  123.     if (err < 0) {

  124.         av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "

  125.                "type = %d.\n", header->nal_unit_type);

  126.         return err;

  127.     }

  128. 

  129.     return 0;

  130. }

  131. 

  132. static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,

  133.                                                    char *data, size_t *data_len)

  134. {

  135.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  136.     CodedBitstreamFragment   *au = &priv->current_access_unit;

  137.     int err;

  138. 

  139.     if (priv->aud_needed) {

  140.         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);

  141.         if (err < 0)

  142.             goto fail;

  143.         priv->aud_needed = 0;

  144.     }

  145. 

  146.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_vps);

  147.     if (err < 0)

  148.         goto fail;

  149. 

  150.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_sps);

  151.     if (err < 0)

  152.         goto fail;

  153. 

  154.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_pps);

  155.     if (err < 0)

  156.         goto fail;

  157. 

  158.     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);

  159. fail:

  160.     ff_cbs_fragment_reset(au);

  161.     return err;

  162. }

  163. 

  164. static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,

  165.                                                 VAAPIEncodePicture *pic,

  166.                                                 VAAPIEncodeSlice *slice,

  167.                                                 char *data, size_t *data_len)

  168. {

  169.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  170.     CodedBitstreamFragment   *au = &priv->current_access_unit;

  171.     int err;

  172. 

  173.     if (priv->aud_needed) {

  174.         err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_aud);

  175.         if (err < 0)

  176.             goto fail;

  177.         priv->aud_needed = 0;

  178.     }

  179. 

  180.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->raw_slice);

  181.     if (err < 0)

  182.         goto fail;

  183. 

  184.     err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);

  185. fail:

  186.     ff_cbs_fragment_reset(au);

  187.     return err;

  188. }

  189. 

  190. static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,

  191.                                                 VAAPIEncodePicture *pic,

  192.                                                 int index, int *type,

  193.                                                 char *data, size_t *data_len)

  194. {

  195.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  196.     CodedBitstreamFragment   *au = &priv->current_access_unit;

  197.     int err;

  198. 

  199.     if (priv->sei_needed) {

  200.         if (priv->aud_needed) {

  201.             err = vaapi_encode_h265_add_nal(avctx, au, &priv->aud);

  202.             if (err < 0)

  203.                 goto fail;

  204.             priv->aud_needed = 0;

  205.         }

  206. 

  207.         if (priv->sei_needed & SEI_MASTERING_DISPLAY) {

  208.             err = ff_cbs_sei_add_message(priv->cbc, au, 1,

  209.                                          SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME,

  210.                                          &priv->sei_mastering_display, NULL);

  211.             if (err < 0)

  212.                 goto fail;

  213.         }

  214. 

  215.         if (priv->sei_needed & SEI_CONTENT_LIGHT_LEVEL) {

  216.             err = ff_cbs_sei_add_message(priv->cbc, au, 1,

  217.                                          SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO,

  218.                                          &priv->sei_content_light_level, NULL);

  219.             if (err < 0)

  220.                 goto fail;

  221.         }

  222. 

  223.         priv->sei_needed = 0;

  224. 

  225.         err = vaapi_encode_h265_write_access_unit(avctx, data, data_len, au);

  226.         if (err < 0)

  227.             goto fail;

  228. 

  229.         ff_cbs_fragment_reset(au);

  230. 

  231.         *type = VAEncPackedHeaderRawData;

  232.         return 0;

  233.     } else {

  234.         return AVERROR_EOF;

  235.     }

  236. 

  237. fail:

  238.     ff_cbs_fragment_reset(au);

  239.     return err;

  240. }

  241. 

  242. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  243. {

  244.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  245.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

  246.     H265RawVPS                        *vps = &priv->raw_vps;

  247.     H265RawSPS                        *sps = &priv->raw_sps;

  248.     H265RawPPS                        *pps = &priv->raw_pps;

  249.     H265RawProfileTierLevel           *ptl = &vps->profile_tier_level;

  250.     H265RawVUI                        *vui = &sps->vui;

  251.     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;

  252.     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;

  253.     const AVPixFmtDescriptor *desc;

  254.     int chroma_format, bit_depth;

  255.     int i;

  256. 

  257.     memset(vps, 0, sizeof(*vps));

  258.     memset(sps, 0, sizeof(*sps));

  259.     memset(pps, 0, sizeof(*pps));

  260. 

  261. 

  262.     desc = av_pix_fmt_desc_get(priv->common.input_frames->sw_format);

  263.     av_assert0(desc);

  264.     if (desc->nb_components == 1) {

  265.         chroma_format = 0;

  266.     } else {

  267.         if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1) {

  268.             chroma_format = 1;

  269.         } else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0) {

  270.             chroma_format = 2;

  271.         } else if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) {

  272.             chroma_format = 3;

  273.         } else {

  274.             av_log(avctx, AV_LOG_ERROR, "Chroma format of input pixel format "

  275.                    "%s is not supported.\n", desc->name);

  276.             return AVERROR(EINVAL);

  277.         }

  278.     }

  279.     bit_depth = desc->comp[0].depth;

  280. 

  281. 

  282.     // VPS

  283. 

  284.     vps->nal_unit_header = (H265RawNALUnitHeader) {

  285.         .nal_unit_type         = HEVC_NAL_VPS,

  286.         .nuh_layer_id          = 0,

  287.         .nuh_temporal_id_plus1 = 1,

  288.     };

  289. 

  290.     vps->vps_video_parameter_set_id = 0;

  291. 

  292.     vps->vps_base_layer_internal_flag  = 1;

  293.     vps->vps_base_layer_available_flag = 1;

  294.     vps->vps_max_layers_minus1         = 0;

  295.     vps->vps_max_sub_layers_minus1     = 0;

  296.     vps->vps_temporal_id_nesting_flag  = 1;

  297. 

  298.     ptl->general_profile_space = 0;

  299.     ptl->general_profile_idc   = avctx->profile;

  300.     ptl->general_tier_flag     = priv->tier;

  301. 

  302.     if (chroma_format == 1) {

  303.         ptl->general_profile_compatibility_flag[1] = bit_depth ==  8;

  304.         ptl->general_profile_compatibility_flag[2] = bit_depth <= 10;

  305.     }

  306.     ptl->general_profile_compatibility_flag[4] = 1;

  307. 

  308.     ptl->general_progressive_source_flag    = 1;

  309.     ptl->general_interlaced_source_flag     = 0;

  310.     ptl->general_non_packed_constraint_flag = 1;

  311.     ptl->general_frame_only_constraint_flag = 1;

  312. 

  313.     ptl->general_max_12bit_constraint_flag = bit_depth <= 12;

  314.     ptl->general_max_10bit_constraint_flag = bit_depth <= 10;

  315.     ptl->general_max_8bit_constraint_flag  = bit_depth ==  8;

  316. 

  317.     ptl->general_max_422chroma_constraint_flag  = chroma_format <= 2;

  318.     ptl->general_max_420chroma_constraint_flag  = chroma_format <= 1;

  319.     ptl->general_max_monochrome_constraint_flag = chroma_format == 0;

  320. 

  321.     ptl->general_intra_constraint_flag = ctx->gop_size == 1;

  322. 

  323.     ptl->general_lower_bit_rate_constraint_flag = 1;

  324. 

  325.     if (avctx->level != FF_LEVEL_UNKNOWN) {

  326.         ptl->general_level_idc = avctx->level;

  327.     } else {

  328.         const H265LevelDescriptor *level;

  329. 

  330.         level = ff_h265_guess_level(ptl, avctx->bit_rate,

  331.                                     ctx->surface_width, ctx->surface_height,

  332.                                     ctx->nb_slices, ctx->tile_rows, ctx->tile_cols,

  333.                                     (ctx->b_per_p > 0) + 1);

  334.         if (level) {

  335.             av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);

  336.             ptl->general_level_idc = level->level_idc;

  337.         } else {

  338.             av_log(avctx, AV_LOG_VERBOSE, "Stream will not conform to "

  339.                    "any normal level; using level 8.5.\n");

  340.             ptl->general_level_idc = 255;

  341.             // The tier flag must be set in level 8.5.

  342.             ptl->general_tier_flag = 1;

  343.         }

  344.     }

  345. 

  346.     vps->vps_sub_layer_ordering_info_present_flag = 0;

  347.     vps->vps_max_dec_pic_buffering_minus1[0]      = ctx->max_b_depth + 1;

  348.     vps->vps_max_num_reorder_pics[0]              = ctx->max_b_depth;

  349.     vps->vps_max_latency_increase_plus1[0]        = 0;

  350. 

  351.     vps->vps_max_layer_id             = 0;

  352.     vps->vps_num_layer_sets_minus1    = 0;

  353.     vps->layer_id_included_flag[0][0] = 1;

  354. 

  355.     vps->vps_timing_info_present_flag = 1;

  356.     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {

  357.         vps->vps_num_units_in_tick  = avctx->framerate.den;

  358.         vps->vps_time_scale         = avctx->framerate.num;

  359.         vps->vps_poc_proportional_to_timing_flag = 1;

  360.         vps->vps_num_ticks_poc_diff_one_minus1   = 0;

  361.     } else {

  362.         vps->vps_num_units_in_tick  = avctx->time_base.num;

  363.         vps->vps_time_scale         = avctx->time_base.den;

  364.         vps->vps_poc_proportional_to_timing_flag = 0;

  365.     }

  366.     vps->vps_num_hrd_parameters = 0;

  367. 

  368. 

  369.     // SPS

  370. 

  371.     sps->nal_unit_header = (H265RawNALUnitHeader) {

  372.         .nal_unit_type         = HEVC_NAL_SPS,

  373.         .nuh_layer_id          = 0,

  374.         .nuh_temporal_id_plus1 = 1,

  375.     };

  376. 

  377.     sps->sps_video_parameter_set_id = vps->vps_video_parameter_set_id;

  378. 

  379.     sps->sps_max_sub_layers_minus1    = vps->vps_max_sub_layers_minus1;

  380.     sps->sps_temporal_id_nesting_flag = vps->vps_temporal_id_nesting_flag;

  381. 

  382.     sps->profile_tier_level = vps->profile_tier_level;

  383. 

  384.     sps->sps_seq_parameter_set_id = 0;

  385. 

  386.     sps->chroma_format_idc          = chroma_format;

  387.     sps->separate_colour_plane_flag = 0;

  388. 

  389.     sps->pic_width_in_luma_samples  = ctx->surface_width;

  390.     sps->pic_height_in_luma_samples = ctx->surface_height;

  391. 

  392.     if (avctx->width  != ctx->surface_width ||

  393.         avctx->height != ctx->surface_height) {

  394.         sps->conformance_window_flag = 1;

  395.         sps->conf_win_left_offset   = 0;

  396.         sps->conf_win_right_offset  =

  397.             (ctx->surface_width - avctx->width) >> desc->log2_chroma_w;

  398.         sps->conf_win_top_offset    = 0;

  399.         sps->conf_win_bottom_offset =

  400.             (ctx->surface_height - avctx->height) >> desc->log2_chroma_h;

  401.     } else {

  402.         sps->conformance_window_flag = 0;

  403.     }

  404. 

  405.     sps->bit_depth_luma_minus8   = bit_depth - 8;

  406.     sps->bit_depth_chroma_minus8 = bit_depth - 8;

  407. 

  408.     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;

  409. 

  410.     sps->sps_sub_layer_ordering_info_present_flag =

  411.         vps->vps_sub_layer_ordering_info_present_flag;

  412.     for (i = 0; i <= sps->sps_max_sub_layers_minus1; i++) {

  413.         sps->sps_max_dec_pic_buffering_minus1[i] =

  414.             vps->vps_max_dec_pic_buffering_minus1[i];

  415.         sps->sps_max_num_reorder_pics[i] =

  416.             vps->vps_max_num_reorder_pics[i];

  417.         sps->sps_max_latency_increase_plus1[i] =

  418.             vps->vps_max_latency_increase_plus1[i];

  419.     }

  420. 

  421.     // These have to come from the capabilities of the encoder.  We have no

  422.     // way to query them, so just hardcode parameters which work on the Intel

  423.     // driver.

  424.     // CTB size from 8x8 to 32x32.

  425.     sps->log2_min_luma_coding_block_size_minus3   = 0;

  426.     sps->log2_diff_max_min_luma_coding_block_size = 2;

  427.     // Transform size from 4x4 to 32x32.

  428.     sps->log2_min_luma_transform_block_size_minus2   = 0;

  429.     sps->log2_diff_max_min_luma_transform_block_size = 3;

  430.     // Full transform hierarchy allowed (2-5).

  431.     sps->max_transform_hierarchy_depth_inter = 3;

  432.     sps->max_transform_hierarchy_depth_intra = 3;

  433.     // AMP works.

  434.     sps->amp_enabled_flag = 1;

  435.     // SAO and temporal MVP do not work.

  436.     sps->sample_adaptive_offset_enabled_flag = 0;

  437.     sps->sps_temporal_mvp_enabled_flag       = 0;

  438. 

  439.     sps->pcm_enabled_flag = 0;

  440. 

  441.     // STRPSs should ideally be here rather than defined individually in

  442.     // each slice, but the structure isn't completely fixed so for now

  443.     // don't bother.

  444.     sps->num_short_term_ref_pic_sets     = 0;

  445.     sps->long_term_ref_pics_present_flag = 0;

  446. 

  447.     sps->vui_parameters_present_flag = 1;

  448. 

  449.     if (avctx->sample_aspect_ratio.num != 0 &&

  450.         avctx->sample_aspect_ratio.den != 0) {

  451.         static const AVRational sar_idc[] = {

  452.             {   0,  0 },

  453.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  454.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  455.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  456.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  457.         };

  458.         int num, den, i;

  459.         av_reduce(&num, &den, avctx->sample_aspect_ratio.num,

  460.                   avctx->sample_aspect_ratio.den, 65535);

  461.         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {

  462.             if (num == sar_idc[i].num &&

  463.                 den == sar_idc[i].den) {

  464.                 vui->aspect_ratio_idc = i;

  465.                 break;

  466.             }

  467.         }

  468.         if (i >= FF_ARRAY_ELEMS(sar_idc)) {

  469.             vui->aspect_ratio_idc = 255;

  470.             vui->sar_width  = num;

  471.             vui->sar_height = den;

  472.         }

  473.         vui->aspect_ratio_info_present_flag = 1;

  474.     }

  475. 

  476.     // Unspecified video format, from table E-2.

  477.     vui->video_format             = 5;

  478.     vui->video_full_range_flag    =

  479.         avctx->color_range == AVCOL_RANGE_JPEG;

  480.     vui->colour_primaries         = avctx->color_primaries;

  481.     vui->transfer_characteristics = avctx->color_trc;

  482.     vui->matrix_coefficients      = avctx->colorspace;

  483.     if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  484.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  485.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED)

  486.         vui->colour_description_present_flag = 1;

  487.     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||

  488.         vui->colour_description_present_flag)

  489.         vui->video_signal_type_present_flag = 1;

  490. 

  491.     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {

  492.         vui->chroma_loc_info_present_flag = 1;

  493.         vui->chroma_sample_loc_type_top_field    =

  494.         vui->chroma_sample_loc_type_bottom_field =

  495.             avctx->chroma_sample_location - 1;

  496.     }

  497. 

  498.     vui->vui_timing_info_present_flag        = 1;

  499.     vui->vui_num_units_in_tick               = vps->vps_num_units_in_tick;

  500.     vui->vui_time_scale                      = vps->vps_time_scale;

  501.     vui->vui_poc_proportional_to_timing_flag = vps->vps_poc_proportional_to_timing_flag;

  502.     vui->vui_num_ticks_poc_diff_one_minus1   = vps->vps_num_ticks_poc_diff_one_minus1;

  503.     vui->vui_hrd_parameters_present_flag     = 0;

  504. 

  505.     vui->bitstream_restriction_flag    = 1;

  506.     vui->motion_vectors_over_pic_boundaries_flag = 1;

  507.     vui->restricted_ref_pic_lists_flag = 1;

  508.     vui->max_bytes_per_pic_denom       = 0;

  509.     vui->max_bits_per_min_cu_denom     = 0;

  510.     vui->log2_max_mv_length_horizontal = 15;

  511.     vui->log2_max_mv_length_vertical   = 15;

  512. 

  513. 

  514.     // PPS

  515. 

  516.     pps->nal_unit_header = (H265RawNALUnitHeader) {

  517.         .nal_unit_type         = HEVC_NAL_PPS,

  518.         .nuh_layer_id          = 0,

  519.         .nuh_temporal_id_plus1 = 1,

  520.     };

  521. 

  522.     pps->pps_pic_parameter_set_id = 0;

  523.     pps->pps_seq_parameter_set_id = sps->sps_seq_parameter_set_id;

  524. 

  525.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  526.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  527. 

  528.     pps->init_qp_minus26 = priv->fixed_qp_idr - 26;

  529. 

  530.     pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP);

  531.     pps->diff_cu_qp_delta_depth   = 0;

  532. 

  533.     if (ctx->tile_rows && ctx->tile_cols) {

  534.         int uniform_spacing;

  535. 

  536.         pps->tiles_enabled_flag      = 1;

  537.         pps->num_tile_columns_minus1 = ctx->tile_cols - 1;

  538.         pps->num_tile_rows_minus1    = ctx->tile_rows - 1;

  539. 

  540.         // Test whether the spacing provided matches the H.265 uniform

  541.         // spacing, and set the flag if it does.

  542.         uniform_spacing = 1;

  543.         for (i = 0; i <= pps->num_tile_columns_minus1 &&

  544.                     uniform_spacing; i++) {

  545.             if (ctx->col_width[i] !=

  546.                 (i + 1) * ctx->slice_block_cols / ctx->tile_cols -

  547.                  i      * ctx->slice_block_cols / ctx->tile_cols)

  548.                 uniform_spacing = 0;

  549.         }

  550.         for (i = 0; i <= pps->num_tile_rows_minus1 &&

  551.                     uniform_spacing; i++) {

  552.             if (ctx->row_height[i] !=

  553.                 (i + 1) * ctx->slice_block_rows / ctx->tile_rows -

  554.                  i      * ctx->slice_block_rows / ctx->tile_rows)

  555.                 uniform_spacing = 0;

  556.         }

  557.         pps->uniform_spacing_flag = uniform_spacing;

  558. 

  559.         for (i = 0; i <= pps->num_tile_columns_minus1; i++)

  560.             pps->column_width_minus1[i] = ctx->col_width[i] - 1;

  561.         for (i = 0; i <= pps->num_tile_rows_minus1; i++)

  562.             pps->row_height_minus1[i]   = ctx->row_height[i] - 1;

  563. 

  564.         pps->loop_filter_across_tiles_enabled_flag = 1;

  565.     }

  566. 

  567.     pps->pps_loop_filter_across_slices_enabled_flag = 1;

  568. 

  569.     // Fill VAAPI parameter buffers.

  570. 

  571.     *vseq = (VAEncSequenceParameterBufferHEVC) {

  572.         .general_profile_idc = vps->profile_tier_level.general_profile_idc,

  573.         .general_level_idc   = vps->profile_tier_level.general_level_idc,

  574.         .general_tier_flag   = vps->profile_tier_level.general_tier_flag,

  575. 

  576.         .intra_period     = ctx->gop_size,

  577.         .intra_idr_period = ctx->gop_size,

  578.         .ip_period        = ctx->b_per_p + 1,

  579.         .bits_per_second  = ctx->va_bit_rate,

  580. 

  581.         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,

  582.         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,

  583. 

  584.         .seq_fields.bits = {

  585.             .chroma_format_idc             = sps->chroma_format_idc,

  586.             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,

  587.             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,

  588.             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,

  589.             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,

  590.             .strong_intra_smoothing_enabled_flag =

  591.                 sps->strong_intra_smoothing_enabled_flag,

  592.             .amp_enabled_flag              = sps->amp_enabled_flag,

  593.             .sample_adaptive_offset_enabled_flag =

  594.                 sps->sample_adaptive_offset_enabled_flag,

  595.             .pcm_enabled_flag              = sps->pcm_enabled_flag,

  596.             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,

  597.             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,

  598.         },

  599. 

  600.         .log2_min_luma_coding_block_size_minus3 =

  601.             sps->log2_min_luma_coding_block_size_minus3,

  602.         .log2_diff_max_min_luma_coding_block_size =

  603.             sps->log2_diff_max_min_luma_coding_block_size,

  604.         .log2_min_transform_block_size_minus2 =

  605.             sps->log2_min_luma_transform_block_size_minus2,

  606.         .log2_diff_max_min_transform_block_size =

  607.             sps->log2_diff_max_min_luma_transform_block_size,

  608.         .max_transform_hierarchy_depth_inter =

  609.             sps->max_transform_hierarchy_depth_inter,

  610.         .max_transform_hierarchy_depth_intra =

  611.             sps->max_transform_hierarchy_depth_intra,

  612. 

  613.         .pcm_sample_bit_depth_luma_minus1 =

  614.             sps->pcm_sample_bit_depth_luma_minus1,

  615.         .pcm_sample_bit_depth_chroma_minus1 =

  616.             sps->pcm_sample_bit_depth_chroma_minus1,

  617.         .log2_min_pcm_luma_coding_block_size_minus3 =

  618.             sps->log2_min_pcm_luma_coding_block_size_minus3,

  619.         .log2_max_pcm_luma_coding_block_size_minus3 =

  620.             sps->log2_min_pcm_luma_coding_block_size_minus3 +

  621.             sps->log2_diff_max_min_pcm_luma_coding_block_size,

  622. 

  623.         .vui_parameters_present_flag = 0,

  624.     };

  625. 

  626.     *vpic = (VAEncPictureParameterBufferHEVC) {

  627.         .decoded_curr_pic = {

  628.             .picture_id = VA_INVALID_ID,

  629.             .flags      = VA_PICTURE_HEVC_INVALID,

  630.         },

  631. 

  632.         .coded_buf = VA_INVALID_ID,

  633. 

  634.         .collocated_ref_pic_index = 0xff,

  635. 

  636.         .last_picture = 0,

  637. 

  638.         .pic_init_qp            = pps->init_qp_minus26 + 26,

  639.         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,

  640.         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,

  641.         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,

  642. 

  643.         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,

  644.         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,

  645. 

  646.         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,

  647.         .ctu_max_bitsize_allowed          = 0,

  648. 

  649.         .num_ref_idx_l0_default_active_minus1 =

  650.             pps->num_ref_idx_l0_default_active_minus1,

  651.         .num_ref_idx_l1_default_active_minus1 =

  652.             pps->num_ref_idx_l1_default_active_minus1,

  653. 

  654.         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,

  655. 

  656.         .pic_fields.bits = {

  657.             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,

  658.             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,

  659.             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,

  660.             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,

  661.             .weighted_pred_flag             = pps->weighted_pred_flag,

  662.             .weighted_bipred_flag           = pps->weighted_bipred_flag,

  663.             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,

  664.             .tiles_enabled_flag             = pps->tiles_enabled_flag,

  665.             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,

  666.             .loop_filter_across_tiles_enabled_flag =

  667.                 pps->loop_filter_across_tiles_enabled_flag,

  668.             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |

  669.                                                pps->pps_scaling_list_data_present_flag),

  670.             .screen_content_flag            = 0,

  671.             .enable_gpu_weighted_prediction = 0,

  672.             .no_output_of_prior_pics_flag   = 0,

  673.         },

  674.     };

  675. 

  676.     if (pps->tiles_enabled_flag) {

  677.         for (i = 0; i <= vpic->num_tile_rows_minus1; i++)

  678.             vpic->row_height_minus1[i]   = pps->row_height_minus1[i];

  679.         for (i = 0; i <= vpic->num_tile_columns_minus1; i++)

  680.             vpic->column_width_minus1[i] = pps->column_width_minus1[i];

  681.     }

  682. 

  683.     return 0;

  684. }

  685. 

  686. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  687.                                                  VAAPIEncodePicture *pic)

  688. {

  689.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  690.     VAAPIEncodeH265Context          *priv = avctx->priv_data;

  691.     VAAPIEncodeH265Picture          *hpic = pic->priv_data;

  692.     VAAPIEncodePicture              *prev = pic->prev;

  693.     VAAPIEncodeH265Picture         *hprev = prev ? prev->priv_data : NULL;

  694.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  695.     int i;

  696. 

  697.     if (pic->type == PICTURE_TYPE_IDR) {

  698.         av_assert0(pic->display_order == pic->encode_order);

  699. 

  700.         hpic->last_idr_frame = pic->display_order;

  701. 

  702.         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;

  703.         hpic->slice_type     = HEVC_SLICE_I;

  704.         hpic->pic_type       = 0;

  705.     } else {

  706.         av_assert0(prev);

  707.         hpic->last_idr_frame = hprev->last_idr_frame;

  708. 

  709.         if (pic->type == PICTURE_TYPE_I) {

  710.             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;

  711.             hpic->slice_type     = HEVC_SLICE_I;

  712.             hpic->pic_type       = 0;

  713.         } else if (pic->type == PICTURE_TYPE_P) {

  714.             av_assert0(pic->refs[0]);

  715.             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;

  716.             hpic->slice_type     = HEVC_SLICE_P;

  717.             hpic->pic_type       = 1;

  718.         } else {

  719.             VAAPIEncodePicture *irap_ref;

  720.             av_assert0(pic->refs[0] && pic->refs[1]);

  721.             for (irap_ref = pic; irap_ref; irap_ref = irap_ref->refs[1]) {

  722.                 if (irap_ref->type == PICTURE_TYPE_I)

  723.                     break;

  724.             }

  725.             if (pic->b_depth == ctx->max_b_depth) {

  726.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N

  727.                                                 : HEVC_NAL_TRAIL_N;

  728.             } else {

  729.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R

  730.                                                 : HEVC_NAL_TRAIL_R;

  731.             }

  732.             hpic->slice_type = HEVC_SLICE_B;

  733.             hpic->pic_type   = 2;

  734.         }

  735.     }

  736.     hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;

  737. 

  738.     if (priv->aud) {

  739.         priv->aud_needed = 1;

  740.         priv->raw_aud = (H265RawAUD) {

  741.             .nal_unit_header = {

  742.                 .nal_unit_type         = HEVC_NAL_AUD,

  743.                 .nuh_layer_id          = 0,

  744.                 .nuh_temporal_id_plus1 = 1,

  745.             },

  746.             .pic_type = hpic->pic_type,

  747.         };

  748.     } else {

  749.         priv->aud_needed = 0;

  750.     }

  751. 

  752.     priv->sei_needed = 0;

  753. 

  754.     // Only look for the metadata on I/IDR frame on the output. We

  755.     // may force an IDR frame on the output where the medadata gets

  756.     // changed on the input frame.

  757.     if ((priv->sei & SEI_MASTERING_DISPLAY) &&

  758.         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {

  759.         AVFrameSideData *sd =

  760.             av_frame_get_side_data(pic->input_image,

  761.                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);

  762. 

  763.         if (sd) {

  764.             AVMasteringDisplayMetadata *mdm =

  765.                 (AVMasteringDisplayMetadata *)sd->data;

  766. 

  767.             // SEI is needed when both the primaries and luminance are set

  768.             if (mdm->has_primaries && mdm->has_luminance) {

  769.                 SEIRawMasteringDisplayColourVolume *mdcv =

  770.                     &priv->sei_mastering_display;

  771.                 const int mapping[3] = {1, 2, 0};

  772.                 const int chroma_den = 50000;

  773.                 const int luma_den   = 10000;

  774. 

  775.                 for (i = 0; i < 3; i++) {

  776.                     const int j = mapping[i];

  777.                     mdcv->display_primaries_x[i] =

  778.                         FFMIN(lrint(chroma_den *

  779.                                     av_q2d(mdm->display_primaries[j][0])),

  780.                               chroma_den);

  781.                     mdcv->display_primaries_y[i] =

  782.                         FFMIN(lrint(chroma_den *

  783.                                     av_q2d(mdm->display_primaries[j][1])),

  784.                               chroma_den);

  785.                 }

  786. 

  787.                 mdcv->white_point_x =

  788.                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[0])),

  789.                           chroma_den);

  790.                 mdcv->white_point_y =

  791.                     FFMIN(lrint(chroma_den * av_q2d(mdm->white_point[1])),

  792.                           chroma_den);

  793. 

  794.                 mdcv->max_display_mastering_luminance =

  795.                     lrint(luma_den * av_q2d(mdm->max_luminance));

  796.                 mdcv->min_display_mastering_luminance =

  797.                     FFMIN(lrint(luma_den * av_q2d(mdm->min_luminance)),

  798.                           mdcv->max_display_mastering_luminance);

  799. 

  800.                 priv->sei_needed |= SEI_MASTERING_DISPLAY;

  801.             }

  802.         }

  803.     }

  804. 

  805.     if ((priv->sei & SEI_CONTENT_LIGHT_LEVEL) &&

  806.         (pic->type == PICTURE_TYPE_I || pic->type == PICTURE_TYPE_IDR)) {

  807.         AVFrameSideData *sd =

  808.             av_frame_get_side_data(pic->input_image,

  809.                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);

  810. 

  811.         if (sd) {

  812.             AVContentLightMetadata *clm =

  813.                 (AVContentLightMetadata *)sd->data;

  814.             SEIRawContentLightLevelInfo *clli =

  815.                 &priv->sei_content_light_level;

  816. 

  817.             clli->max_content_light_level     = FFMIN(clm->MaxCLL,  65535);

  818.             clli->max_pic_average_light_level = FFMIN(clm->MaxFALL, 65535);

  819. 

  820.             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;

  821.         }

  822.     }

  823. 

  824.     vpic->decoded_curr_pic = (VAPictureHEVC) {

  825.         .picture_id    = pic->recon_surface,

  826.         .pic_order_cnt = hpic->pic_order_cnt,

  827.         .flags         = 0,

  828.     };

  829. 

  830.     for (i = 0; i < pic->nb_refs; i++) {

  831.         VAAPIEncodePicture      *ref = pic->refs[i];

  832.         VAAPIEncodeH265Picture *href;

  833. 

  834.         av_assert0(ref && ref->encode_order < pic->encode_order);

  835.         href = ref->priv_data;

  836. 

  837.         vpic->reference_frames[i] = (VAPictureHEVC) {

  838.             .picture_id    = ref->recon_surface,

  839.             .pic_order_cnt = href->pic_order_cnt,

  840.             .flags = (ref->display_order < pic->display_order ?

  841.                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

  842.                      (ref->display_order > pic->display_order ?

  843.                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),

  844.         };

  845.     }

  846.     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {

  847.         vpic->reference_frames[i] = (VAPictureHEVC) {

  848.             .picture_id = VA_INVALID_ID,

  849.             .flags      = VA_PICTURE_HEVC_INVALID,

  850.         };

  851.     }

  852. 

  853.     vpic->coded_buf = pic->output_buffer;

  854. 

  855.     vpic->nal_unit_type = hpic->slice_nal_unit;

  856. 

  857.     switch (pic->type) {

  858.     case PICTURE_TYPE_IDR:

  859.         vpic->pic_fields.bits.idr_pic_flag       = 1;

  860.         vpic->pic_fields.bits.coding_type        = 1;

  861.         vpic->pic_fields.bits.reference_pic_flag = 1;

  862.         break;

  863.     case PICTURE_TYPE_I:

  864.         vpic->pic_fields.bits.idr_pic_flag       = 0;

  865.         vpic->pic_fields.bits.coding_type        = 1;

  866.         vpic->pic_fields.bits.reference_pic_flag = 1;

  867.         break;

  868.     case PICTURE_TYPE_P:

  869.         vpic->pic_fields.bits.idr_pic_flag       = 0;

  870.         vpic->pic_fields.bits.coding_type        = 2;

  871.         vpic->pic_fields.bits.reference_pic_flag = 1;

  872.         break;

  873.     case PICTURE_TYPE_B:

  874.         vpic->pic_fields.bits.idr_pic_flag       = 0;

  875.         vpic->pic_fields.bits.coding_type        = 3;

  876.         vpic->pic_fields.bits.reference_pic_flag = 0;

  877.         break;

  878.     default:

  879.         av_assert0(0 && "invalid picture type");

  880.     }

  881. 

  882.     return 0;

  883. }

  884. 

  885. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  886.                                                VAAPIEncodePicture *pic,

  887.                                                VAAPIEncodeSlice *slice)

  888. {

  889.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

  890.     VAAPIEncodeH265Picture           *hpic = pic->priv_data;

  891.     const H265RawSPS                  *sps = &priv->raw_sps;

  892.     const H265RawPPS                  *pps = &priv->raw_pps;

  893.     H265RawSliceHeader                 *sh = &priv->raw_slice.header;

  894.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  895.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  896.     int i;

  897. 

  898.     sh->nal_unit_header = (H265RawNALUnitHeader) {

  899.         .nal_unit_type         = hpic->slice_nal_unit,

  900.         .nuh_layer_id          = 0,

  901.         .nuh_temporal_id_plus1 = 1,

  902.     };

  903. 

  904.     sh->slice_pic_parameter_set_id      = pps->pps_pic_parameter_set_id;

  905. 

  906.     sh->first_slice_segment_in_pic_flag = slice->index == 0;

  907.     sh->slice_segment_address           = slice->block_start;

  908. 

  909.     sh->slice_type = hpic->slice_type;

  910. 

  911.     sh->slice_pic_order_cnt_lsb = hpic->pic_order_cnt &

  912.         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;

  913. 

  914.     if (pic->type != PICTURE_TYPE_IDR) {

  915.         H265RawSTRefPicSet *rps;

  916.         const VAAPIEncodeH265Picture *strp;

  917.         int rps_poc[MAX_DPB_SIZE];

  918.         int rps_used[MAX_DPB_SIZE];

  919.         int i, j, poc, rps_pics;

  920. 

  921.         sh->short_term_ref_pic_set_sps_flag = 0;

  922. 

  923.         rps = &sh->short_term_ref_pic_set;

  924.         memset(rps, 0, sizeof(*rps));

  925. 

  926.         rps_pics = 0;

  927.         for (i = 0; i < pic->nb_refs; i++) {

  928.             strp = pic->refs[i]->priv_data;

  929.             rps_poc[rps_pics]  = strp->pic_order_cnt;

  930.             rps_used[rps_pics] = 1;

  931.             ++rps_pics;

  932.         }

  933.         for (i = 0; i < pic->nb_dpb_pics; i++) {

  934.             if (pic->dpb[i] == pic)

  935.                 continue;

  936.             for (j = 0; j < pic->nb_refs; j++) {

  937.                 if (pic->dpb[i] == pic->refs[j])

  938.                     break;

  939.             }

  940.             if (j < pic->nb_refs)

  941.                 continue;

  942.             strp = pic->dpb[i]->priv_data;

  943.             rps_poc[rps_pics]  = strp->pic_order_cnt;

  944.             rps_used[rps_pics] = 0;

  945.             ++rps_pics;

  946.         }

  947. 

  948.         for (i = 1; i < rps_pics; i++) {

  949.             for (j = i; j > 0; j--) {

  950.                 if (rps_poc[j] > rps_poc[j - 1])

  951.                     break;

  952.                 av_assert0(rps_poc[j] != rps_poc[j - 1]);

  953.                 FFSWAP(int, rps_poc[j],  rps_poc[j - 1]);

  954.                 FFSWAP(int, rps_used[j], rps_used[j - 1]);

  955.             }

  956.         }

  957. 

  958.         av_log(avctx, AV_LOG_DEBUG, "RPS for POC %d:",

  959.                hpic->pic_order_cnt);

  960.         for (i = 0; i < rps_pics; i++) {

  961.             av_log(avctx, AV_LOG_DEBUG, " (%d,%d)",

  962.                    rps_poc[i], rps_used[i]);

  963.         }

  964.         av_log(avctx, AV_LOG_DEBUG, "\n");

  965. 

  966.         for (i = 0; i < rps_pics; i++) {

  967.             av_assert0(rps_poc[i] != hpic->pic_order_cnt);

  968.             if (rps_poc[i] > hpic->pic_order_cnt)

  969.                 break;

  970.         }

  971. 

  972.         rps->num_negative_pics = i;

  973.         poc = hpic->pic_order_cnt;

  974.         for (j = i - 1; j >= 0; j--) {

  975.             rps->delta_poc_s0_minus1[i - 1 - j] = poc - rps_poc[j] - 1;

  976.             rps->used_by_curr_pic_s0_flag[i - 1 - j] = rps_used[j];

  977.             poc = rps_poc[j];

  978.         }

  979. 

  980.         rps->num_positive_pics = rps_pics - i;

  981.         poc = hpic->pic_order_cnt;

  982.         for (j = i; j < rps_pics; j++) {

  983.             rps->delta_poc_s1_minus1[j - i] = rps_poc[j] - poc - 1;

  984.             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];

  985.             poc = rps_poc[j];

  986.         }

  987. 

  988.         sh->num_long_term_sps  = 0;

  989.         sh->num_long_term_pics = 0;

  990. 

  991.         sh->slice_temporal_mvp_enabled_flag =

  992.             sps->sps_temporal_mvp_enabled_flag;

  993.         if (sh->slice_temporal_mvp_enabled_flag) {

  994.             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;

  995.             sh->collocated_ref_idx      = 0;

  996.         }

  997. 

  998.         sh->num_ref_idx_active_override_flag = 0;

  999.         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;

  1000.         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;

  1001.     }

  1002. 

  1003.     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =

  1004.         sps->sample_adaptive_offset_enabled_flag;

  1005. 

  1006.     if (pic->type == PICTURE_TYPE_B)

  1007.         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);

  1008.     else if (pic->type == PICTURE_TYPE_P)

  1009.         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);

  1010.     else

  1011.         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);

  1012. 

  1013. 

  1014.     *vslice = (VAEncSliceParameterBufferHEVC) {

  1015.         .slice_segment_address = sh->slice_segment_address,

  1016.         .num_ctu_in_slice      = slice->block_size,

  1017. 

  1018.         .slice_type                 = sh->slice_type,

  1019.         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,

  1020. 

  1021.         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,

  1022.         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,

  1023. 

  1024.         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,

  1025.         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,

  1026. 

  1027.         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,

  1028. 

  1029.         .slice_qp_delta     = sh->slice_qp_delta,

  1030.         .slice_cb_qp_offset = sh->slice_cb_qp_offset,

  1031.         .slice_cr_qp_offset = sh->slice_cr_qp_offset,

  1032. 

  1033.         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,

  1034.         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,

  1035. 

  1036.         .slice_fields.bits = {

  1037.             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,

  1038.             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,

  1039.             .colour_plane_id              = sh->colour_plane_id,

  1040.             .slice_temporal_mvp_enabled_flag =

  1041.                 sh->slice_temporal_mvp_enabled_flag,

  1042.             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,

  1043.             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,

  1044.             .num_ref_idx_active_override_flag =

  1045.                 sh->num_ref_idx_active_override_flag,

  1046.             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,

  1047.             .cabac_init_flag              = sh->cabac_init_flag,

  1048.             .slice_deblocking_filter_disabled_flag =

  1049.                 sh->slice_deblocking_filter_disabled_flag,

  1050.             .slice_loop_filter_across_slices_enabled_flag =

  1051.                 sh->slice_loop_filter_across_slices_enabled_flag,

  1052.             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,

  1053.         },

  1054.     };

  1055. 

  1056.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {

  1057.         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;

  1058.         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;

  1059.         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;

  1060.         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;

  1061.     }

  1062. 

  1063.     av_assert0(pic->nb_refs <= 2);

  1064.     if (pic->nb_refs >= 1) {

  1065.         // Backward reference for P- or B-frame.

  1066.         av_assert0(pic->type == PICTURE_TYPE_P ||

  1067.                    pic->type == PICTURE_TYPE_B);

  1068.         vslice->ref_pic_list0[0] = vpic->reference_frames[0];

  1069.     }

  1070.     if (pic->nb_refs >= 2) {

  1071.         // Forward reference for B-frame.

  1072.         av_assert0(pic->type == PICTURE_TYPE_B);

  1073.         vslice->ref_pic_list1[0] = vpic->reference_frames[1];

  1074.     }

  1075. 

  1076.     return 0;

  1077. }

  1078. 

  1079. static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)

  1080. {

  1081.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1082.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1083.     int err;

  1084. 

  1085.     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);

  1086.     if (err < 0)

  1087.         return err;

  1088. 

  1089.     if (ctx->va_rc_mode == VA_RC_CQP) {

  1090.         // Note that VAAPI only supports positive QP values - the range is

  1091.         // therefore always bounded below by 1, even in 10-bit mode where

  1092.         // it should go down to -12.

  1093. 

  1094.         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);

  1095.         if (avctx->i_quant_factor > 0.0)

  1096.             priv->fixed_qp_idr =

  1097.                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +

  1098.                          avctx->i_quant_offset) + 0.5, 1, 51);

  1099.         else

  1100.             priv->fixed_qp_idr = priv->fixed_qp_p;

  1101.         if (avctx->b_quant_factor > 0.0)

  1102.             priv->fixed_qp_b =

  1103.                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +

  1104.                          avctx->b_quant_offset) + 0.5, 1, 51);

  1105.         else

  1106.             priv->fixed_qp_b = priv->fixed_qp_p;

  1107. 

  1108.         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "

  1109.                "%d / %d / %d for IDR- / P- / B-frames.\n",

  1110.                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);

  1111. 

  1112.     } else {

  1113.         // These still need to be set for init_qp/slice_qp_delta.

  1114.         priv->fixed_qp_idr = 30;

  1115.         priv->fixed_qp_p   = 30;

  1116.         priv->fixed_qp_b   = 30;

  1117.     }

  1118. 

  1119.     ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);

  1120. 

  1121.     return 0;

  1122. }

  1123. 

  1124. static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {

  1125.     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },

  1126.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },

  1127. #if VA_CHECK_VERSION(0, 37, 0)

  1128.     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },

  1129.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },

  1130. #endif

  1131. #if VA_CHECK_VERSION(1, 2, 0)

  1132.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 0, VAProfileHEVCMain422_10 },

  1133.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 0, VAProfileHEVCMain422_10 },

  1134. #endif

  1135.     { FF_PROFILE_UNKNOWN }

  1136. };

  1137. 

  1138. static const VAAPIEncodeType vaapi_encode_type_h265 = {

  1139.     .profiles              = vaapi_encode_h265_profiles,

  1140. 

  1141.     .flags                 = FLAG_SLICE_CONTROL |

  1142.                              FLAG_B_PICTURES |

  1143.                              FLAG_B_PICTURE_REFERENCES |

  1144.                              FLAG_NON_IDR_KEY_PICTURES,

  1145. 

  1146.     .default_quality       = 25,

  1147. 

  1148.     .configure             = &vaapi_encode_h265_configure,

  1149. 

  1150.     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),

  1151. 

  1152.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  1153.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  1154. 

  1155.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  1156.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  1157. 

  1158.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  1159.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  1160. 

  1161.     .sequence_header_type  = VAEncPackedHeaderSequence,

  1162.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  1163. 

  1164.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  1165.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  1166. 

  1167.     .write_extra_header    = &vaapi_encode_h265_write_extra_header,

  1168. };

  1169. 

  1170. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  1171. {

  1172.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1173.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1174. 

  1175.     ctx->codec = &vaapi_encode_type_h265;

  1176. 

  1177.     if (avctx->profile == FF_PROFILE_UNKNOWN)

  1178.         avctx->profile = priv->profile;

  1179.     if (avctx->level == FF_LEVEL_UNKNOWN)

  1180.         avctx->level = priv->level;

  1181. 

  1182.     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {

  1183.         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "

  1184.                "in 8-bit unsigned integer.\n", avctx->level);

  1185.         return AVERROR(EINVAL);

  1186.     }

  1187. 

  1188.     ctx->desired_packed_headers =

  1189.         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.

  1190.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  1191.         VA_ENC_PACKED_HEADER_MISC;      // SEI

  1192. 

  1193.     ctx->surface_width  = FFALIGN(avctx->width,  16);

  1194.     ctx->surface_height = FFALIGN(avctx->height, 16);

  1195. 

  1196.     // CTU size is currently hard-coded to 32.

  1197.     ctx->slice_block_width = ctx->slice_block_height = 32;

  1198. 

  1199.     if (priv->qp > 0)

  1200.         ctx->explicit_qp = priv->qp;

  1201. 

  1202.     return ff_vaapi_encode_init(avctx);

  1203. }

  1204. 

  1205. static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)

  1206. {

  1207.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1208. 

  1209.     ff_cbs_fragment_free(&priv->current_access_unit);

  1210.     ff_cbs_close(&priv->cbc);

  1211. 

  1212.     return ff_vaapi_encode_close(avctx);

  1213. }

  1214. 

  1215. #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)

  1216. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  1217. static const AVOption vaapi_encode_h265_options[] = {

  1218.     VAAPI_ENCODE_COMMON_OPTIONS,

  1219.     VAAPI_ENCODE_RC_OPTIONS,

  1220. 

  1221.     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

  1222.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },

  1223. 

  1224.     { "aud", "Include AUD",

  1225.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1226. 

  1227.     { "profile", "Set profile (general_profile_idc)",

  1228.       OFFSET(profile), AV_OPT_TYPE_INT,

  1229.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },

  1230. 

  1231. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1232.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1233.     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },

  1234.     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },

  1235.     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },

  1236. #undef PROFILE

  1237. 

  1238.     { "tier", "Set tier (general_tier_flag)",

  1239.       OFFSET(tier), AV_OPT_TYPE_INT,

  1240.       { .i64 = 0 }, 0, 1, FLAGS, "tier" },

  1241.     { "main", NULL, 0, AV_OPT_TYPE_CONST,

  1242.       { .i64 = 0 }, 0, 0, FLAGS, "tier" },

  1243.     { "high", NULL, 0, AV_OPT_TYPE_CONST,

  1244.       { .i64 = 1 }, 0, 0, FLAGS, "tier" },

  1245. 

  1246.     { "level", "Set level (general_level_idc)",

  1247.       OFFSET(level), AV_OPT_TYPE_INT,

  1248.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1249. 

  1250. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1251.       { .i64 = value }, 0, 0, FLAGS, "level"

  1252.     { LEVEL("1",    30) },

  1253.     { LEVEL("2",    60) },

  1254.     { LEVEL("2.1",  63) },

  1255.     { LEVEL("3",    90) },

  1256.     { LEVEL("3.1",  93) },

  1257.     { LEVEL("4",   120) },

  1258.     { LEVEL("4.1", 123) },

  1259.     { LEVEL("5",   150) },

  1260.     { LEVEL("5.1", 153) },

  1261.     { LEVEL("5.2", 156) },

  1262.     { LEVEL("6",   180) },

  1263.     { LEVEL("6.1", 183) },

  1264.     { LEVEL("6.2", 186) },

  1265. #undef LEVEL

  1266. 

  1267.     { "sei", "Set SEI to include",

  1268.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1269.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1270.       0, INT_MAX, FLAGS, "sei" },

  1271.     { "hdr",

  1272.       "Include HDR metadata for mastering display colour volume "

  1273.       "and content light level information",

  1274.       0, AV_OPT_TYPE_CONST,

  1275.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1276.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1277. 

  1278.     { "tiles", "Tile columns x rows",

  1279.       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,

  1280.       { .str = NULL }, 0, 0, FLAGS },

  1281. 

  1282.     { NULL },

  1283. };

  1284. 

  1285. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  1286.     { "b",              "0"   },

  1287.     { "bf",             "2"   },

  1288.     { "g",              "120" },

  1289.     { "i_qfactor",      "1"   },

  1290.     { "i_qoffset",      "0"   },

  1291.     { "b_qfactor",      "6/5" },

  1292.     { "b_qoffset",      "0"   },

  1293.     { "qmin",           "-1"  },

  1294.     { "qmax",           "-1"  },

  1295.     { NULL },

  1296. };

  1297. 

  1298. static const AVClass vaapi_encode_h265_class = {

  1299.     .class_name = "h265_vaapi",

  1300.     .item_name  = av_default_item_name,

  1301.     .option     = vaapi_encode_h265_options,

  1302.     .version    = LIBAVUTIL_VERSION_INT,

  1303. };

  1304. 

  1305. AVCodec ff_hevc_vaapi_encoder = {

  1306.     .name           = "hevc_vaapi",

  1307.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1308.     .type           = AVMEDIA_TYPE_VIDEO,

  1309.     .id             = AV_CODEC_ID_HEVC,

  1310.     .priv_data_size = sizeof(VAAPIEncodeH265Context),

  1311.     .init           = &vaapi_encode_h265_init,

  1312.     .receive_packet = &ff_vaapi_encode_receive_packet,

  1313.     .close          = &vaapi_encode_h265_close,

  1314.     .priv_class     = &vaapi_encode_h265_class,

  1315.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1316.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  1317.     .defaults       = vaapi_encode_h265_defaults,

  1318.     .pix_fmts = (const enum AVPixelFormat[]) {

  1319.         AV_PIX_FMT_VAAPI,

  1320.         AV_PIX_FMT_NONE,

  1321.     },

  1322.     .hw_configs     = ff_vaapi_encode_hw_configs,

  1323.     .wrapper_name   = "vaapi",

  1324. };