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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 VAAPIEncodeH265Context {

  46.     VAAPIEncodeContext common;

  47. 

  48.     // User options.

  49.     int qp;

  50.     int aud;

  51.     int profile;

  52.     int tier;

  53.     int level;

  54.     int sei;

  55. 

  56.     // Derived settings.

  57.     int fixed_qp_idr;

  58.     int fixed_qp_p;

  59.     int fixed_qp_b;

  60. 

  61.     // Stream state.

  62.     int64_t last_idr_frame;

  63.     int pic_order_cnt;

  64. 

  65.     int slice_nal_unit;

  66.     int slice_type;

  67.     int pic_type;

  68. 

  69.     // Writer structures.

  70.     H265RawAUD   raw_aud;

  71.     H265RawVPS   raw_vps;

  72.     H265RawSPS   raw_sps;

  73.     H265RawPPS   raw_pps;

  74.     H265RawSEI   raw_sei;

  75.     H265RawSlice raw_slice;

  76. 

  77.     H265RawSEIMasteringDisplayColourVolume sei_mastering_display;

  78.     H265RawSEIContentLightLevelInfo        sei_content_light_level;

  79. 

  80.     CodedBitstreamContext *cbc;

  81.     CodedBitstreamFragment current_access_unit;

  82.     int aud_needed;

  83.     int sei_needed;

  84. } VAAPIEncodeH265Context;

  85. 

  86. 

  87. static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,

  88.                                                char *data, size_t *data_len,

  89.                                                CodedBitstreamFragment *au)

  90. {

  91.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  92.     int err;

  93. 

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

  95.     if (err < 0) {

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

  97.         return err;

  98.     }

  99. 

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

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

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

  103.                8 * au->data_size - au->data_bit_padding);

  104.         return AVERROR(ENOSPC);

  105.     }

  106. 

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

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

  109. 

  110.     return 0;

  111. }

  112. 

  113. static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,

  114.                                      CodedBitstreamFragment *au,

  115.                                      void *nal_unit)

  116. {

  117.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  118.     H265RawNALUnitHeader *header = nal_unit;

  119.     int err;

  120. 

  121.     err = ff_cbs_insert_unit_content(priv->cbc, 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_uninit(priv->cbc, 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_uninit(priv->cbc, 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, i;

  198. 

  199.     if (priv->sei_needed) {

  200.         H265RawSEI *sei = &priv->raw_sei;

  201. 

  202.         if (priv->aud_needed) {

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

  204.             if (err < 0)

  205.                 goto fail;

  206.             priv->aud_needed = 0;

  207.         }

  208. 

  209.         *sei = (H265RawSEI) {

  210.             .nal_unit_header = {

  211.                 .nal_unit_type         = HEVC_NAL_SEI_PREFIX,

  212.                 .nuh_layer_id          = 0,

  213.                 .nuh_temporal_id_plus1 = 1,

  214.             },

  215.         };

  216. 

  217.         i = 0;

  218. 

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

  220.             sei->payload[i].payload_type = HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO;

  221.             sei->payload[i].payload.mastering_display = priv->sei_mastering_display;

  222.             ++i;

  223.         }

  224. 

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

  226.             sei->payload[i].payload_type = HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO;

  227.             sei->payload[i].payload.content_light_level = priv->sei_content_light_level;

  228.             ++i;

  229.         }

  230. 

  231.         sei->payload_count = i;

  232.         av_assert0(sei->payload_count > 0);

  233. 

  234.         err = vaapi_encode_h265_add_nal(avctx, au, sei);

  235.         if (err < 0)

  236.             goto fail;

  237.         priv->sei_needed = 0;

  238. 

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

  240.         if (err < 0)

  241.             goto fail;

  242. 

  243.         ff_cbs_fragment_uninit(priv->cbc, au);

  244. 

  245.         *type = VAEncPackedHeaderRawData;

  246.         return 0;

  247.     } else {

  248.         return AVERROR_EOF;

  249.     }

  250. 

  251. fail:

  252.     ff_cbs_fragment_uninit(priv->cbc, au);

  253.     return err;

  254. }

  255. 

  256. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  257. {

  258.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  259.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

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

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

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

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

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

  265.     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;

  266.     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;

  267.     const AVPixFmtDescriptor *desc;

  268.     int chroma_format, bit_depth;

  269.     int i;

  270. 

  271.     memset(&priv->current_access_unit, 0,

  272.            sizeof(priv->current_access_unit));

  273. 

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

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

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

  277. 

  278. 

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

  280.     av_assert0(desc);

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

  282.         chroma_format = 0;

  283.     } else {

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

  285.             chroma_format = 1;

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

  287.             chroma_format = 2;

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

  289.             chroma_format = 3;

  290.         } else {

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

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

  293.             return AVERROR(EINVAL);

  294.         }

  295.     }

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

  297. 

  298. 

  299.     // VPS

  300. 

  301.     vps->nal_unit_header = (H265RawNALUnitHeader) {

  302.         .nal_unit_type         = HEVC_NAL_VPS,

  303.         .nuh_layer_id          = 0,

  304.         .nuh_temporal_id_plus1 = 1,

  305.     };

  306. 

  307.     vps->vps_video_parameter_set_id = 0;

  308. 

  309.     vps->vps_base_layer_internal_flag  = 1;

  310.     vps->vps_base_layer_available_flag = 1;

  311.     vps->vps_max_layers_minus1         = 0;

  312.     vps->vps_max_sub_layers_minus1     = 0;

  313.     vps->vps_temporal_id_nesting_flag  = 1;

  314. 

  315.     ptl->general_profile_space = 0;

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

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

  318. 

  319.     if (chroma_format == 1) {

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

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

  322.     }

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

  324. 

  325.     ptl->general_progressive_source_flag    = 1;

  326.     ptl->general_interlaced_source_flag     = 0;

  327.     ptl->general_non_packed_constraint_flag = 1;

  328.     ptl->general_frame_only_constraint_flag = 1;

  329. 

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

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

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

  333. 

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

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

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

  337. 

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

  339. 

  340.     ptl->general_lower_bit_rate_constraint_flag = 1;

  341. 

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

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

  344.     } else {

  345.         const H265LevelDescriptor *level;

  346. 

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

  348.                                     ctx->surface_width, ctx->surface_height,

  349.                                     ctx->nb_slices, 1, 1,

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

  351.         if (level) {

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

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

  354.         } else {

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

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

  357.             ptl->general_level_idc = 255;

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

  359.             ptl->general_tier_flag = 1;

  360.         }

  361.     }

  362. 

  363.     vps->vps_sub_layer_ordering_info_present_flag = 0;

  364.     vps->vps_max_dec_pic_buffering_minus1[0]      = (ctx->b_per_p > 0) + 1;

  365.     vps->vps_max_num_reorder_pics[0]              = (ctx->b_per_p > 0);

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

  367. 

  368.     vps->vps_max_layer_id             = 0;

  369.     vps->vps_num_layer_sets_minus1    = 0;

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

  371. 

  372.     vps->vps_timing_info_present_flag = 1;

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

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

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

  376.         vps->vps_poc_proportional_to_timing_flag = 1;

  377.         vps->vps_num_ticks_poc_diff_one_minus1   = 0;

  378.     } else {

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

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

  381.         vps->vps_poc_proportional_to_timing_flag = 0;

  382.     }

  383.     vps->vps_num_hrd_parameters = 0;

  384. 

  385. 

  386.     // SPS

  387. 

  388.     sps->nal_unit_header = (H265RawNALUnitHeader) {

  389.         .nal_unit_type         = HEVC_NAL_SPS,

  390.         .nuh_layer_id          = 0,

  391.         .nuh_temporal_id_plus1 = 1,

  392.     };

  393. 

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

  395. 

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

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

  398. 

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

  400. 

  401.     sps->sps_seq_parameter_set_id = 0;

  402. 

  403.     sps->chroma_format_idc          = chroma_format;

  404.     sps->separate_colour_plane_flag = 0;

  405. 

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

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

  408. 

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

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

  411.         sps->conformance_window_flag = 1;

  412.         sps->conf_win_left_offset   = 0;

  413.         sps->conf_win_right_offset  =

  414.             (ctx->surface_width - avctx->width) / 2;

  415.         sps->conf_win_top_offset    = 0;

  416.         sps->conf_win_bottom_offset =

  417.             (ctx->surface_height - avctx->height) / 2;

  418.     } else {

  419.         sps->conformance_window_flag = 0;

  420.     }

  421. 

  422.     sps->bit_depth_luma_minus8   = bit_depth - 8;

  423.     sps->bit_depth_chroma_minus8 = bit_depth - 8;

  424. 

  425.     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;

  426. 

  427.     sps->sps_sub_layer_ordering_info_present_flag =

  428.         vps->vps_sub_layer_ordering_info_present_flag;

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

  430.         sps->sps_max_dec_pic_buffering_minus1[i] =

  431.             vps->vps_max_dec_pic_buffering_minus1[i];

  432.         sps->sps_max_num_reorder_pics[i] =

  433.             vps->vps_max_num_reorder_pics[i];

  434.         sps->sps_max_latency_increase_plus1[i] =

  435.             vps->vps_max_latency_increase_plus1[i];

  436.     }

  437. 

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

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

  440.     // driver.

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

  442.     sps->log2_min_luma_coding_block_size_minus3   = 0;

  443.     sps->log2_diff_max_min_luma_coding_block_size = 2;

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

  445.     sps->log2_min_luma_transform_block_size_minus2   = 0;

  446.     sps->log2_diff_max_min_luma_transform_block_size = 3;

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

  448.     sps->max_transform_hierarchy_depth_inter = 3;

  449.     sps->max_transform_hierarchy_depth_intra = 3;

  450.     // AMP works.

  451.     sps->amp_enabled_flag = 1;

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

  453.     sps->sample_adaptive_offset_enabled_flag = 0;

  454.     sps->sps_temporal_mvp_enabled_flag       = 0;

  455. 

  456.     sps->pcm_enabled_flag = 0;

  457. 

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

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

  460.     // don't bother.

  461.     sps->num_short_term_ref_pic_sets     = 0;

  462.     sps->long_term_ref_pics_present_flag = 0;

  463. 

  464.     sps->vui_parameters_present_flag = 1;

  465. 

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

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

  468.         static const AVRational sar_idc[] = {

  469.             {   0,  0 },

  470.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  471.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  472.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  473.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  474.         };

  475.         int num, den, i;

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

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

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

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

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

  481.                 vui->aspect_ratio_idc = i;

  482.                 break;

  483.             }

  484.         }

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

  486.             vui->aspect_ratio_idc = 255;

  487.             vui->sar_width  = num;

  488.             vui->sar_height = den;

  489.         }

  490.         vui->aspect_ratio_info_present_flag = 1;

  491.     }

  492. 

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

  494.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  495.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  496.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  497.         vui->video_signal_type_present_flag = 1;

  498.         vui->video_format      = 5; // Unspecified.

  499.         vui->video_full_range_flag =

  500.             avctx->color_range == AVCOL_RANGE_JPEG;

  501. 

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

  503.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  504.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  505.             vui->colour_description_present_flag = 1;

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

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

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

  509.         }

  510.     } else {

  511.         vui->video_format             = 5;

  512.         vui->video_full_range_flag    = 0;

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

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

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

  516.     }

  517. 

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

  519.         vui->chroma_loc_info_present_flag = 1;

  520.         vui->chroma_sample_loc_type_top_field    =

  521.         vui->chroma_sample_loc_type_bottom_field =

  522.             avctx->chroma_sample_location - 1;

  523.     }

  524. 

  525.     vui->vui_timing_info_present_flag        = 1;

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

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

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

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

  530.     vui->vui_hrd_parameters_present_flag     = 0;

  531. 

  532.     vui->bitstream_restriction_flag    = 1;

  533.     vui->motion_vectors_over_pic_boundaries_flag = 1;

  534.     vui->restricted_ref_pic_lists_flag = 1;

  535.     vui->max_bytes_per_pic_denom       = 0;

  536.     vui->max_bits_per_min_cu_denom     = 0;

  537.     vui->log2_max_mv_length_horizontal = 15;

  538.     vui->log2_max_mv_length_vertical   = 15;

  539. 

  540. 

  541.     // PPS

  542. 

  543.     pps->nal_unit_header = (H265RawNALUnitHeader) {

  544.         .nal_unit_type         = HEVC_NAL_PPS,

  545.         .nuh_layer_id          = 0,

  546.         .nuh_temporal_id_plus1 = 1,

  547.     };

  548. 

  549.     pps->pps_pic_parameter_set_id = 0;

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

  551. 

  552.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  553.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  554. 

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

  556. 

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

  558.     pps->diff_cu_qp_delta_depth   = 0;

  559. 

  560.     pps->pps_loop_filter_across_slices_enabled_flag = 1;

  561. 

  562. 

  563.     // Fill VAAPI parameter buffers.

  564. 

  565.     *vseq = (VAEncSequenceParameterBufferHEVC) {

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

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

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

  569. 

  570.         .intra_period     = ctx->gop_size,

  571.         .intra_idr_period = ctx->gop_size,

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

  573.         .bits_per_second  = ctx->va_bit_rate,

  574. 

  575.         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,

  576.         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,

  577. 

  578.         .seq_fields.bits = {

  579.             .chroma_format_idc             = sps->chroma_format_idc,

  580.             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,

  581.             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,

  582.             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,

  583.             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,

  584.             .strong_intra_smoothing_enabled_flag =

  585.                 sps->strong_intra_smoothing_enabled_flag,

  586.             .amp_enabled_flag              = sps->amp_enabled_flag,

  587.             .sample_adaptive_offset_enabled_flag =

  588.                 sps->sample_adaptive_offset_enabled_flag,

  589.             .pcm_enabled_flag              = sps->pcm_enabled_flag,

  590.             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,

  591.             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,

  592.         },

  593. 

  594.         .log2_min_luma_coding_block_size_minus3 =

  595.             sps->log2_min_luma_coding_block_size_minus3,

  596.         .log2_diff_max_min_luma_coding_block_size =

  597.             sps->log2_diff_max_min_luma_coding_block_size,

  598.         .log2_min_transform_block_size_minus2 =

  599.             sps->log2_min_luma_transform_block_size_minus2,

  600.         .log2_diff_max_min_transform_block_size =

  601.             sps->log2_diff_max_min_luma_transform_block_size,

  602.         .max_transform_hierarchy_depth_inter =

  603.             sps->max_transform_hierarchy_depth_inter,

  604.         .max_transform_hierarchy_depth_intra =

  605.             sps->max_transform_hierarchy_depth_intra,

  606. 

  607.         .pcm_sample_bit_depth_luma_minus1 =

  608.             sps->pcm_sample_bit_depth_luma_minus1,

  609.         .pcm_sample_bit_depth_chroma_minus1 =

  610.             sps->pcm_sample_bit_depth_chroma_minus1,

  611.         .log2_min_pcm_luma_coding_block_size_minus3 =

  612.             sps->log2_min_pcm_luma_coding_block_size_minus3,

  613.         .log2_max_pcm_luma_coding_block_size_minus3 =

  614.             sps->log2_min_pcm_luma_coding_block_size_minus3 +

  615.             sps->log2_diff_max_min_pcm_luma_coding_block_size,

  616. 

  617.         .vui_parameters_present_flag = 0,

  618.     };

  619. 

  620.     *vpic = (VAEncPictureParameterBufferHEVC) {

  621.         .decoded_curr_pic = {

  622.             .picture_id = VA_INVALID_ID,

  623.             .flags      = VA_PICTURE_HEVC_INVALID,

  624.         },

  625. 

  626.         .coded_buf = VA_INVALID_ID,

  627. 

  628.         .collocated_ref_pic_index = 0xff,

  629. 

  630.         .last_picture = 0,

  631. 

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

  633.         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,

  634.         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,

  635.         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,

  636. 

  637.         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,

  638.         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,

  639. 

  640.         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,

  641.         .ctu_max_bitsize_allowed          = 0,

  642. 

  643.         .num_ref_idx_l0_default_active_minus1 =

  644.             pps->num_ref_idx_l0_default_active_minus1,

  645.         .num_ref_idx_l1_default_active_minus1 =

  646.             pps->num_ref_idx_l1_default_active_minus1,

  647. 

  648.         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,

  649. 

  650.         .pic_fields.bits = {

  651.             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,

  652.             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,

  653.             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,

  654.             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,

  655.             .weighted_pred_flag             = pps->weighted_pred_flag,

  656.             .weighted_bipred_flag           = pps->weighted_bipred_flag,

  657.             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,

  658.             .tiles_enabled_flag             = pps->tiles_enabled_flag,

  659.             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,

  660.             .loop_filter_across_tiles_enabled_flag =

  661.                 pps->loop_filter_across_tiles_enabled_flag,

  662.             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |

  663.                                                pps->pps_scaling_list_data_present_flag),

  664.             .screen_content_flag            = 0,

  665.             .enable_gpu_weighted_prediction = 0,

  666.             .no_output_of_prior_pics_flag   = 0,

  667.         },

  668.     };

  669. 

  670.     return 0;

  671. }

  672. 

  673. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  674.                                                  VAAPIEncodePicture *pic)

  675. {

  676.     VAAPIEncodeH265Context          *priv = avctx->priv_data;

  677.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  678.     int i;

  679. 

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

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

  682. 

  683.         priv->last_idr_frame = pic->display_order;

  684. 

  685.         priv->slice_nal_unit = HEVC_NAL_IDR_W_RADL;

  686.         priv->slice_type     = HEVC_SLICE_I;

  687.         priv->pic_type       = 0;

  688.     } else {

  689.         av_assert0(pic->encode_order > priv->last_idr_frame);

  690. 

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

  692.             priv->slice_nal_unit = HEVC_NAL_CRA_NUT;

  693.             priv->slice_type     = HEVC_SLICE_I;

  694.             priv->pic_type       = 0;

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

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

  697.             priv->slice_nal_unit = HEVC_NAL_TRAIL_R;

  698.             priv->slice_type     = HEVC_SLICE_P;

  699.             priv->pic_type       = 1;

  700.         } else {

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

  702.             if (pic->refs[1]->type == PICTURE_TYPE_I)

  703.                 priv->slice_nal_unit = HEVC_NAL_RASL_N;

  704.             else

  705.                 priv->slice_nal_unit = HEVC_NAL_TRAIL_N;

  706.             priv->slice_type = HEVC_SLICE_B;

  707.             priv->pic_type   = 2;

  708.         }

  709.     }

  710.     priv->pic_order_cnt = pic->display_order - priv->last_idr_frame;

  711. 

  712.     if (priv->aud) {

  713.         priv->aud_needed = 1;

  714.         priv->raw_aud = (H265RawAUD) {

  715.             .nal_unit_header = {

  716.                 .nal_unit_type         = HEVC_NAL_AUD,

  717.                 .nuh_layer_id          = 0,

  718.                 .nuh_temporal_id_plus1 = 1,

  719.             },

  720.             .pic_type = priv->pic_type,

  721.         };

  722.     } else {

  723.         priv->aud_needed = 0;

  724.     }

  725. 

  726.     priv->sei_needed = 0;

  727. 

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

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

  730.     // changed on the input frame.

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

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

  733.         AVFrameSideData *sd =

  734.             av_frame_get_side_data(pic->input_image,

  735.                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);

  736. 

  737.         if (sd) {

  738.             AVMasteringDisplayMetadata *mdm =

  739.                 (AVMasteringDisplayMetadata *)sd->data;

  740. 

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

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

  743.                 H265RawSEIMasteringDisplayColourVolume *mdcv =

  744.                     &priv->sei_mastering_display;

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

  746.                 const int chroma_den = 50000;

  747.                 const int luma_den   = 10000;

  748. 

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

  750.                     const int j = mapping[i];

  751.                     mdcv->display_primaries_x[i] =

  752.                         FFMIN(lrint(chroma_den *

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

  754.                               chroma_den);

  755.                     mdcv->display_primaries_y[i] =

  756.                         FFMIN(lrint(chroma_den *

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

  758.                               chroma_den);

  759.                 }

  760. 

  761.                 mdcv->white_point_x =

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

  763.                           chroma_den);

  764.                 mdcv->white_point_y =

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

  766.                           chroma_den);

  767. 

  768.                 mdcv->max_display_mastering_luminance =

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

  770.                 mdcv->min_display_mastering_luminance =

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

  772.                           mdcv->max_display_mastering_luminance);

  773. 

  774.                 priv->sei_needed |= SEI_MASTERING_DISPLAY;

  775.             }

  776.         }

  777.     }

  778. 

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

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

  781.         AVFrameSideData *sd =

  782.             av_frame_get_side_data(pic->input_image,

  783.                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);

  784. 

  785.         if (sd) {

  786.             AVContentLightMetadata *clm =

  787.                 (AVContentLightMetadata *)sd->data;

  788.             H265RawSEIContentLightLevelInfo *clli =

  789.                 &priv->sei_content_light_level;

  790. 

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

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

  793. 

  794.             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;

  795.         }

  796.     }

  797. 

  798.     vpic->decoded_curr_pic = (VAPictureHEVC) {

  799.         .picture_id    = pic->recon_surface,

  800.         .pic_order_cnt = priv->pic_order_cnt,

  801.         .flags         = 0,

  802.     };

  803. 

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

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

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

  807. 

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

  809.             .picture_id    = ref->recon_surface,

  810.             .pic_order_cnt = ref->display_order - priv->last_idr_frame,

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

  812.                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

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

  814.                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),

  815.         };

  816.     }

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

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

  819.             .picture_id = VA_INVALID_ID,

  820.             .flags      = VA_PICTURE_HEVC_INVALID,

  821.         };

  822.     }

  823. 

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

  825. 

  826.     vpic->nal_unit_type = priv->slice_nal_unit;

  827. 

  828.     switch (pic->type) {

  829.     case PICTURE_TYPE_IDR:

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

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

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

  833.         break;

  834.     case PICTURE_TYPE_I:

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

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

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

  838.         break;

  839.     case PICTURE_TYPE_P:

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

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

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

  843.         break;

  844.     case PICTURE_TYPE_B:

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

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

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

  848.         break;

  849.     default:

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

  851.     }

  852. 

  853.     return 0;

  854. }

  855. 

  856. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  857.                                                VAAPIEncodePicture *pic,

  858.                                                VAAPIEncodeSlice *slice)

  859. {

  860.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  861.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

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

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

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

  865.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  866.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  867.     int i;

  868. 

  869.     sh->nal_unit_header = (H265RawNALUnitHeader) {

  870.         .nal_unit_type         = priv->slice_nal_unit,

  871.         .nuh_layer_id          = 0,

  872.         .nuh_temporal_id_plus1 = 1,

  873.     };

  874. 

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

  876. 

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

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

  879. 

  880.     sh->slice_type = priv->slice_type;

  881. 

  882.     sh->slice_pic_order_cnt_lsb = priv->pic_order_cnt &

  883.         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;

  884. 

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

  886.         H265RawSTRefPicSet *rps;

  887.         VAAPIEncodePicture *st;

  888.         int used;

  889. 

  890.         sh->short_term_ref_pic_set_sps_flag = 0;

  891. 

  892.         rps = &sh->short_term_ref_pic_set;

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

  894. 

  895.         for (st = ctx->pic_start; st; st = st->next) {

  896.             if (st->encode_order >= pic->encode_order) {

  897.                 // Not yet in DPB.

  898.                 continue;

  899.             }

  900.             used = 0;

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

  902.                 if (pic->refs[i] == st)

  903.                     used = 1;

  904.             }

  905.             if (!used) {

  906.                 // Usually each picture always uses all of the others in the

  907.                 // DPB as references.  The one case we have to treat here is

  908.                 // a non-IDR IRAP picture, which may need to hold unused

  909.                 // references across itself to be used for the decoding of

  910.                 // following RASL pictures.  This looks for such an RASL

  911.                 // picture, and keeps the reference if there is one.

  912.                 VAAPIEncodePicture *rp;

  913.                 for (rp = ctx->pic_start; rp; rp = rp->next) {

  914.                     if (rp->encode_order < pic->encode_order)

  915.                         continue;

  916.                     if (rp->type != PICTURE_TYPE_B)

  917.                         continue;

  918.                     if (rp->refs[0] == st && rp->refs[1] == pic)

  919.                         break;

  920.                 }

  921.                 if (!rp)

  922.                     continue;

  923.             }

  924.             // This only works for one instance of each (delta_poc_sN_minus1

  925.             // is relative to the previous frame in the list, not relative to

  926.             // the current frame directly).

  927.             if (st->display_order < pic->display_order) {

  928.                 rps->delta_poc_s0_minus1[rps->num_negative_pics] =

  929.                     pic->display_order - st->display_order - 1;

  930.                 rps->used_by_curr_pic_s0_flag[rps->num_negative_pics] = used;

  931.                 ++rps->num_negative_pics;

  932.             } else {

  933.                 rps->delta_poc_s1_minus1[rps->num_positive_pics] =

  934.                     st->display_order - pic->display_order - 1;

  935.                 rps->used_by_curr_pic_s1_flag[rps->num_positive_pics] = used;

  936.                 ++rps->num_positive_pics;

  937.             }

  938.         }

  939. 

  940.         sh->num_long_term_sps  = 0;

  941.         sh->num_long_term_pics = 0;

  942. 

  943.         sh->slice_temporal_mvp_enabled_flag =

  944.             sps->sps_temporal_mvp_enabled_flag;

  945.         if (sh->slice_temporal_mvp_enabled_flag) {

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

  947.             sh->collocated_ref_idx      = 0;

  948.         }

  949. 

  950.         sh->num_ref_idx_active_override_flag = 0;

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

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

  953.     }

  954. 

  955.     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =

  956.         sps->sample_adaptive_offset_enabled_flag;

  957. 

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

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

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

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

  962.     else

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

  964. 

  965. 

  966.     *vslice = (VAEncSliceParameterBufferHEVC) {

  967.         .slice_segment_address = sh->slice_segment_address,

  968.         .num_ctu_in_slice      = slice->block_size,

  969. 

  970.         .slice_type                 = sh->slice_type,

  971.         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,

  972. 

  973.         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,

  974.         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,

  975. 

  976.         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,

  977.         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,

  978. 

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

  980. 

  981.         .slice_qp_delta     = sh->slice_qp_delta,

  982.         .slice_cb_qp_offset = sh->slice_cb_qp_offset,

  983.         .slice_cr_qp_offset = sh->slice_cr_qp_offset,

  984. 

  985.         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,

  986.         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,

  987. 

  988.         .slice_fields.bits = {

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

  990.             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,

  991.             .colour_plane_id              = sh->colour_plane_id,

  992.             .slice_temporal_mvp_enabled_flag =

  993.                 sh->slice_temporal_mvp_enabled_flag,

  994.             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,

  995.             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,

  996.             .num_ref_idx_active_override_flag =

  997.                 sh->num_ref_idx_active_override_flag,

  998.             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,

  999.             .cabac_init_flag              = sh->cabac_init_flag,

  1000.             .slice_deblocking_filter_disabled_flag =

  1001.                 sh->slice_deblocking_filter_disabled_flag,

  1002.             .slice_loop_filter_across_slices_enabled_flag =

  1003.                 sh->slice_loop_filter_across_slices_enabled_flag,

  1004.             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,

  1005.         },

  1006.     };

  1007. 

  1008.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {

  1009.         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;

  1010.         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;

  1011.         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;

  1012.         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;

  1013.     }

  1014. 

  1015.     av_assert0(pic->nb_refs <= 2);

  1016.     if (pic->nb_refs >= 1) {

  1017.         // Backward reference for P- or B-frame.

  1018.         av_assert0(pic->type == PICTURE_TYPE_P ||

  1019.                    pic->type == PICTURE_TYPE_B);

  1020.         vslice->ref_pic_list0[0] = vpic->reference_frames[0];

  1021.     }

  1022.     if (pic->nb_refs >= 2) {

  1023.         // Forward reference for B-frame.

  1024.         av_assert0(pic->type == PICTURE_TYPE_B);

  1025.         vslice->ref_pic_list1[0] = vpic->reference_frames[1];

  1026.     }

  1027. 

  1028.     return 0;

  1029. }

  1030. 

  1031. static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)

  1032. {

  1033.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1034.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1035.     int err;

  1036. 

  1037.     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);

  1038.     if (err < 0)

  1039.         return err;

  1040. 

  1041.     if (ctx->va_rc_mode == VA_RC_CQP) {

  1042.         priv->fixed_qp_p = priv->qp;

  1043.         if (avctx->i_quant_factor > 0.0)

  1044.             priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +

  1045.                                         avctx->i_quant_offset) + 0.5);

  1046.         else

  1047.             priv->fixed_qp_idr = priv->fixed_qp_p;

  1048.         if (avctx->b_quant_factor > 0.0)

  1049.             priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +

  1050.                                       avctx->b_quant_offset) + 0.5);

  1051.         else

  1052.             priv->fixed_qp_b = priv->fixed_qp_p;

  1053. 

  1054.         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "

  1055.                "%d / %d / %d for IDR- / P- / B-frames.\n",

  1056.                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);

  1057. 

  1058.     } else if (ctx->va_rc_mode == VA_RC_CBR ||

  1059.                ctx->va_rc_mode == VA_RC_VBR) {

  1060.         // These still need to be  set for pic_init_qp/slice_qp_delta.

  1061.         priv->fixed_qp_idr = 30;

  1062.         priv->fixed_qp_p   = 30;

  1063.         priv->fixed_qp_b   = 30;

  1064. 

  1065.     } else {

  1066.         av_assert0(0 && "Invalid RC mode.");

  1067.     }

  1068. 

  1069.     return 0;

  1070. }

  1071. 

  1072. static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {

  1073.     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },

  1074.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },

  1075. #if VA_CHECK_VERSION(0, 37, 0)

  1076.     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },

  1077.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },

  1078. #endif

  1079.     { FF_PROFILE_UNKNOWN }

  1080. };

  1081. 

  1082. static const VAAPIEncodeType vaapi_encode_type_h265 = {

  1083.     .profiles              = vaapi_encode_h265_profiles,

  1084. 

  1085.     .flags                 = FLAG_SLICE_CONTROL |

  1086.                              FLAG_B_PICTURES |

  1087.                              FLAG_NON_IDR_KEY_PICTURES,

  1088. 

  1089.     .configure             = &vaapi_encode_h265_configure,

  1090. 

  1091.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  1092.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  1093. 

  1094.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  1095.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  1096. 

  1097.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  1098.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  1099. 

  1100.     .sequence_header_type  = VAEncPackedHeaderSequence,

  1101.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  1102. 

  1103.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  1104.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  1105. 

  1106.     .write_extra_header    = &vaapi_encode_h265_write_extra_header,

  1107. };

  1108. 

  1109. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  1110. {

  1111.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1112.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1113. 

  1114.     ctx->codec = &vaapi_encode_type_h265;

  1115. 

  1116.     if (avctx->profile == FF_PROFILE_UNKNOWN)

  1117.         avctx->profile = priv->profile;

  1118.     if (avctx->level == FF_LEVEL_UNKNOWN)

  1119.         avctx->level = priv->level;

  1120. 

  1121.     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {

  1122.         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "

  1123.                "in 8-bit unsigned integer.\n", avctx->level);

  1124.         return AVERROR(EINVAL);

  1125.     }

  1126. 

  1127.     ctx->desired_packed_headers =

  1128.         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.

  1129.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  1130.         VA_ENC_PACKED_HEADER_MISC;      // SEI

  1131. 

  1132.     ctx->surface_width  = FFALIGN(avctx->width,  16);

  1133.     ctx->surface_height = FFALIGN(avctx->height, 16);

  1134. 

  1135.     // CTU size is currently hard-coded to 32.

  1136.     ctx->slice_block_width = ctx->slice_block_height = 32;

  1137. 

  1138.     return ff_vaapi_encode_init(avctx);

  1139. }

  1140. 

  1141. static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)

  1142. {

  1143.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1144. 

  1145.     ff_cbs_close(&priv->cbc);

  1146. 

  1147.     return ff_vaapi_encode_close(avctx);

  1148. }

  1149. 

  1150. #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)

  1151. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  1152. static const AVOption vaapi_encode_h265_options[] = {

  1153.     VAAPI_ENCODE_COMMON_OPTIONS,

  1154. 

  1155.     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

  1156.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, 52, FLAGS },

  1157. 

  1158.     { "aud", "Include AUD",

  1159.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1160. 

  1161.     { "profile", "Set profile (general_profile_idc)",

  1162.       OFFSET(profile), AV_OPT_TYPE_INT,

  1163.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },

  1164. 

  1165. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1166.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1167.     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },

  1168.     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },

  1169.     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },

  1170. #undef PROFILE

  1171. 

  1172.     { "tier", "Set tier (general_tier_flag)",

  1173.       OFFSET(tier), AV_OPT_TYPE_INT,

  1174.       { .i64 = 0 }, 0, 1, FLAGS, "tier" },

  1175.     { "main", NULL, 0, AV_OPT_TYPE_CONST,

  1176.       { .i64 = 0 }, 0, 0, FLAGS, "tier" },

  1177.     { "high", NULL, 0, AV_OPT_TYPE_CONST,

  1178.       { .i64 = 1 }, 0, 0, FLAGS, "tier" },

  1179. 

  1180.     { "level", "Set level (general_level_idc)",

  1181.       OFFSET(level), AV_OPT_TYPE_INT,

  1182.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1183. 

  1184. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1185.       { .i64 = value }, 0, 0, FLAGS, "level"

  1186.     { LEVEL("1",    30) },

  1187.     { LEVEL("2",    60) },

  1188.     { LEVEL("2.1",  63) },

  1189.     { LEVEL("3",    90) },

  1190.     { LEVEL("3.1",  93) },

  1191.     { LEVEL("4",   120) },

  1192.     { LEVEL("4.1", 123) },

  1193.     { LEVEL("5",   150) },

  1194.     { LEVEL("5.1", 153) },

  1195.     { LEVEL("5.2", 156) },

  1196.     { LEVEL("6",   180) },

  1197.     { LEVEL("6.1", 183) },

  1198.     { LEVEL("6.2", 186) },

  1199. #undef LEVEL

  1200. 

  1201.     { "sei", "Set SEI to include",

  1202.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1203.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1204.       0, INT_MAX, FLAGS, "sei" },

  1205.     { "hdr",

  1206.       "Include HDR metadata for mastering display colour volume "

  1207.       "and content light level information",

  1208.       0, AV_OPT_TYPE_CONST,

  1209.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1210.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1211. 

  1212.     { NULL },

  1213. };

  1214. 

  1215. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  1216.     { "b",              "0"   },

  1217.     { "bf",             "2"   },

  1218.     { "g",              "120" },

  1219.     { "i_qfactor",      "1"   },

  1220.     { "i_qoffset",      "0"   },

  1221.     { "b_qfactor",      "6/5" },

  1222.     { "b_qoffset",      "0"   },

  1223.     { "qmin",           "-1"  },

  1224.     { "qmax",           "-1"  },

  1225.     { NULL },

  1226. };

  1227. 

  1228. static const AVClass vaapi_encode_h265_class = {

  1229.     .class_name = "h265_vaapi",

  1230.     .item_name  = av_default_item_name,

  1231.     .option     = vaapi_encode_h265_options,

  1232.     .version    = LIBAVUTIL_VERSION_INT,

  1233. };

  1234. 

  1235. AVCodec ff_hevc_vaapi_encoder = {

  1236.     .name           = "hevc_vaapi",

  1237.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1238.     .type           = AVMEDIA_TYPE_VIDEO,

  1239.     .id             = AV_CODEC_ID_HEVC,

  1240.     .priv_data_size = sizeof(VAAPIEncodeH265Context),

  1241.     .init           = &vaapi_encode_h265_init,

  1242.     .send_frame     = &ff_vaapi_encode_send_frame,

  1243.     .receive_packet = &ff_vaapi_encode_receive_packet,

  1244.     .close          = &vaapi_encode_h265_close,

  1245.     .priv_class     = &vaapi_encode_h265_class,

  1246.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1247.     .defaults       = vaapi_encode_h265_defaults,

  1248.     .pix_fmts = (const enum AVPixelFormat[]) {

  1249.         AV_PIX_FMT_VAAPI,

  1250.         AV_PIX_FMT_NONE,

  1251.     },

  1252.     .wrapper_name   = "vaapi",

  1253. };