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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.     H265RawSEI   raw_sei;

  77.     H265RawSlice raw_slice;

  78. 

  79.     SEIRawMasteringDisplayColourVolume sei_mastering_display;

  80.     SEIRawContentLightLevelInfo        sei_content_light_level;

  81. 

  82.     CodedBitstreamContext *cbc;

  83.     CodedBitstreamFragment current_access_unit;

  84.     int aud_needed;

  85.     int sei_needed;

  86. } VAAPIEncodeH265Context;

  87. 

  88. 

  89. static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,

  90.                                                char *data, size_t *data_len,

  91.                                                CodedBitstreamFragment *au)

  92. {

  93.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  94.     int err;

  95. 

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

  97.     if (err < 0) {

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

  99.         return err;

  100.     }

  101. 

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

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

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

  105.                8 * au->data_size - au->data_bit_padding);

  106.         return AVERROR(ENOSPC);

  107.     }

  108. 

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

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

  111. 

  112.     return 0;

  113. }

  114. 

  115. static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,

  116.                                      CodedBitstreamFragment *au,

  117.                                      void *nal_unit)

  118. {

  119.     H265RawNALUnitHeader *header = nal_unit;

  120.     int err;

  121. 

  122.     err = ff_cbs_insert_unit_content(au, -1,

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

  124.     if (err < 0) {

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

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

  127.         return err;

  128.     }

  129. 

  130.     return 0;

  131. }

  132. 

  133. static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,

  134.                                                    char *data, size_t *data_len)

  135. {

  136.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  138.     int err;

  139. 

  140.     if (priv->aud_needed) {

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

  142.         if (err < 0)

  143.             goto fail;

  144.         priv->aud_needed = 0;

  145.     }

  146. 

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

  148.     if (err < 0)

  149.         goto fail;

  150. 

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

  152.     if (err < 0)

  153.         goto fail;

  154. 

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

  156.     if (err < 0)

  157.         goto fail;

  158. 

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

  160. fail:

  161.     ff_cbs_fragment_reset(au);

  162.     return err;

  163. }

  164. 

  165. static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,

  166.                                                 VAAPIEncodePicture *pic,

  167.                                                 VAAPIEncodeSlice *slice,

  168.                                                 char *data, size_t *data_len)

  169. {

  170.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  172.     int err;

  173. 

  174.     if (priv->aud_needed) {

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

  176.         if (err < 0)

  177.             goto fail;

  178.         priv->aud_needed = 0;

  179.     }

  180. 

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

  182.     if (err < 0)

  183.         goto fail;

  184. 

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

  186. fail:

  187.     ff_cbs_fragment_reset(au);

  188.     return err;

  189. }

  190. 

  191. static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,

  192.                                                 VAAPIEncodePicture *pic,

  193.                                                 int index, int *type,

  194.                                                 char *data, size_t *data_len)

  195. {

  196.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  198.     int err, i;

  199. 

  200.     if (priv->sei_needed) {

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

  202. 

  203.         if (priv->aud_needed) {

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

  205.             if (err < 0)

  206.                 goto fail;

  207.             priv->aud_needed = 0;

  208.         }

  209. 

  210.         *sei = (H265RawSEI) {

  211.             .nal_unit_header = {

  212.                 .nal_unit_type         = HEVC_NAL_SEI_PREFIX,

  213.                 .nuh_layer_id          = 0,

  214.                 .nuh_temporal_id_plus1 = 1,

  215.             },

  216.         };

  217. 

  218.         i = 0;

  219. 

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

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

  222.             sei->payload[i].payload.mastering_display_colour_volume =

  223.                 priv->sei_mastering_display;

  224.             ++i;

  225.         }

  226. 

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

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

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

  230.             ++i;

  231.         }

  232. 

  233.         sei->payload_count = i;

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

  235. 

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

  237.         if (err < 0)

  238.             goto fail;

  239.         priv->sei_needed = 0;

  240. 

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

  242.         if (err < 0)

  243.             goto fail;

  244. 

  245.         ff_cbs_fragment_reset(au);

  246. 

  247.         *type = VAEncPackedHeaderRawData;

  248.         return 0;

  249.     } else {

  250.         return AVERROR_EOF;

  251.     }

  252. 

  253. fail:

  254.     ff_cbs_fragment_reset(au);

  255.     return err;

  256. }

  257. 

  258. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  259. {

  260.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  261.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

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

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

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

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

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

  267.     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;

  268.     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;

  269.     const AVPixFmtDescriptor *desc;

  270.     int chroma_format, bit_depth;

  271.     int i;

  272. 

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

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

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

  276. 

  277. 

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

  279.     av_assert0(desc);

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

  281.         chroma_format = 0;

  282.     } else {

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

  284.             chroma_format = 1;

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

  286.             chroma_format = 2;

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

  288.             chroma_format = 3;

  289.         } else {

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

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

  292.             return AVERROR(EINVAL);

  293.         }

  294.     }

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

  296. 

  297. 

  298.     // VPS

  299. 

  300.     vps->nal_unit_header = (H265RawNALUnitHeader) {

  301.         .nal_unit_type         = HEVC_NAL_VPS,

  302.         .nuh_layer_id          = 0,

  303.         .nuh_temporal_id_plus1 = 1,

  304.     };

  305. 

  306.     vps->vps_video_parameter_set_id = 0;

  307. 

  308.     vps->vps_base_layer_internal_flag  = 1;

  309.     vps->vps_base_layer_available_flag = 1;

  310.     vps->vps_max_layers_minus1         = 0;

  311.     vps->vps_max_sub_layers_minus1     = 0;

  312.     vps->vps_temporal_id_nesting_flag  = 1;

  313. 

  314.     ptl->general_profile_space = 0;

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

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

  317. 

  318.     if (chroma_format == 1) {

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

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

  321.     }

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

  323. 

  324.     ptl->general_progressive_source_flag    = 1;

  325.     ptl->general_interlaced_source_flag     = 0;

  326.     ptl->general_non_packed_constraint_flag = 1;

  327.     ptl->general_frame_only_constraint_flag = 1;

  328. 

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

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

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

  332. 

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

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

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

  336. 

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

  338. 

  339.     ptl->general_lower_bit_rate_constraint_flag = 1;

  340. 

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

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

  343.     } else {

  344.         const H265LevelDescriptor *level;

  345. 

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

  347.                                     ctx->surface_width, ctx->surface_height,

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

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

  350.         if (level) {

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

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

  353.         } else {

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

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

  356.             ptl->general_level_idc = 255;

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

  358.             ptl->general_tier_flag = 1;

  359.         }

  360.     }

  361. 

  362.     vps->vps_sub_layer_ordering_info_present_flag = 0;

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

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

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

  366. 

  367.     vps->vps_max_layer_id             = 0;

  368.     vps->vps_num_layer_sets_minus1    = 0;

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

  370. 

  371.     vps->vps_timing_info_present_flag = 1;

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

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

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

  375.         vps->vps_poc_proportional_to_timing_flag = 1;

  376.         vps->vps_num_ticks_poc_diff_one_minus1   = 0;

  377.     } else {

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

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

  380.         vps->vps_poc_proportional_to_timing_flag = 0;

  381.     }

  382.     vps->vps_num_hrd_parameters = 0;

  383. 

  384. 

  385.     // SPS

  386. 

  387.     sps->nal_unit_header = (H265RawNALUnitHeader) {

  388.         .nal_unit_type         = HEVC_NAL_SPS,

  389.         .nuh_layer_id          = 0,

  390.         .nuh_temporal_id_plus1 = 1,

  391.     };

  392. 

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

  394. 

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

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

  397. 

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

  399. 

  400.     sps->sps_seq_parameter_set_id = 0;

  401. 

  402.     sps->chroma_format_idc          = chroma_format;

  403.     sps->separate_colour_plane_flag = 0;

  404. 

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

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

  407. 

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

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

  410.         sps->conformance_window_flag = 1;

  411.         sps->conf_win_left_offset   = 0;

  412.         sps->conf_win_right_offset  =

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

  414.         sps->conf_win_top_offset    = 0;

  415.         sps->conf_win_bottom_offset =

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

  417.     } else {

  418.         sps->conformance_window_flag = 0;

  419.     }

  420. 

  421.     sps->bit_depth_luma_minus8   = bit_depth - 8;

  422.     sps->bit_depth_chroma_minus8 = bit_depth - 8;

  423. 

  424.     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;

  425. 

  426.     sps->sps_sub_layer_ordering_info_present_flag =

  427.         vps->vps_sub_layer_ordering_info_present_flag;

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

  429.         sps->sps_max_dec_pic_buffering_minus1[i] =

  430.             vps->vps_max_dec_pic_buffering_minus1[i];

  431.         sps->sps_max_num_reorder_pics[i] =

  432.             vps->vps_max_num_reorder_pics[i];

  433.         sps->sps_max_latency_increase_plus1[i] =

  434.             vps->vps_max_latency_increase_plus1[i];

  435.     }

  436. 

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

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

  439.     // driver.

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

  441.     sps->log2_min_luma_coding_block_size_minus3   = 0;

  442.     sps->log2_diff_max_min_luma_coding_block_size = 2;

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

  444.     sps->log2_min_luma_transform_block_size_minus2   = 0;

  445.     sps->log2_diff_max_min_luma_transform_block_size = 3;

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

  447.     sps->max_transform_hierarchy_depth_inter = 3;

  448.     sps->max_transform_hierarchy_depth_intra = 3;

  449.     // AMP works.

  450.     sps->amp_enabled_flag = 1;

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

  452.     sps->sample_adaptive_offset_enabled_flag = 0;

  453.     sps->sps_temporal_mvp_enabled_flag       = 0;

  454. 

  455.     sps->pcm_enabled_flag = 0;

  456. 

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

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

  459.     // don't bother.

  460.     sps->num_short_term_ref_pic_sets     = 0;

  461.     sps->long_term_ref_pics_present_flag = 0;

  462. 

  463.     sps->vui_parameters_present_flag = 1;

  464. 

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

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

  467.         static const AVRational sar_idc[] = {

  468.             {   0,  0 },

  469.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  470.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  471.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  472.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  473.         };

  474.         int num, den, i;

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

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

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

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

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

  480.                 vui->aspect_ratio_idc = i;

  481.                 break;

  482.             }

  483.         }

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

  485.             vui->aspect_ratio_idc = 255;

  486.             vui->sar_width  = num;

  487.             vui->sar_height = den;

  488.         }

  489.         vui->aspect_ratio_info_present_flag = 1;

  490.     }

  491. 

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

  493.     vui->video_format             = 5;

  494.     vui->video_full_range_flag    =

  495.         avctx->color_range == AVCOL_RANGE_JPEG;

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

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

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

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

  500.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  501.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED)

  502.         vui->colour_description_present_flag = 1;

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

  504.         vui->colour_description_present_flag)

  505.         vui->video_signal_type_present_flag = 1;

  506. 

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

  508.         vui->chroma_loc_info_present_flag = 1;

  509.         vui->chroma_sample_loc_type_top_field    =

  510.         vui->chroma_sample_loc_type_bottom_field =

  511.             avctx->chroma_sample_location - 1;

  512.     }

  513. 

  514.     vui->vui_timing_info_present_flag        = 1;

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

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

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

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

  519.     vui->vui_hrd_parameters_present_flag     = 0;

  520. 

  521.     vui->bitstream_restriction_flag    = 1;

  522.     vui->motion_vectors_over_pic_boundaries_flag = 1;

  523.     vui->restricted_ref_pic_lists_flag = 1;

  524.     vui->max_bytes_per_pic_denom       = 0;

  525.     vui->max_bits_per_min_cu_denom     = 0;

  526.     vui->log2_max_mv_length_horizontal = 15;

  527.     vui->log2_max_mv_length_vertical   = 15;

  528. 

  529. 

  530.     // PPS

  531. 

  532.     pps->nal_unit_header = (H265RawNALUnitHeader) {

  533.         .nal_unit_type         = HEVC_NAL_PPS,

  534.         .nuh_layer_id          = 0,

  535.         .nuh_temporal_id_plus1 = 1,

  536.     };

  537. 

  538.     pps->pps_pic_parameter_set_id = 0;

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

  540. 

  541.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  542.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  543. 

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

  545. 

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

  547.     pps->diff_cu_qp_delta_depth   = 0;

  548. 

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

  550.         int uniform_spacing;

  551. 

  552.         pps->tiles_enabled_flag      = 1;

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

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

  555. 

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

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

  558.         uniform_spacing = 1;

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

  560.                     uniform_spacing; i++) {

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

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

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

  564.                 uniform_spacing = 0;

  565.         }

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

  567.                     uniform_spacing; i++) {

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

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

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

  571.                 uniform_spacing = 0;

  572.         }

  573.         pps->uniform_spacing_flag = uniform_spacing;

  574. 

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

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

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

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

  579. 

  580.         pps->loop_filter_across_tiles_enabled_flag = 1;

  581.     }

  582. 

  583.     pps->pps_loop_filter_across_slices_enabled_flag = 1;

  584. 

  585.     // Fill VAAPI parameter buffers.

  586. 

  587.     *vseq = (VAEncSequenceParameterBufferHEVC) {

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

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

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

  591. 

  592.         .intra_period     = ctx->gop_size,

  593.         .intra_idr_period = ctx->gop_size,

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

  595.         .bits_per_second  = ctx->va_bit_rate,

  596. 

  597.         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,

  598.         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,

  599. 

  600.         .seq_fields.bits = {

  601.             .chroma_format_idc             = sps->chroma_format_idc,

  602.             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,

  603.             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,

  604.             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,

  605.             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,

  606.             .strong_intra_smoothing_enabled_flag =

  607.                 sps->strong_intra_smoothing_enabled_flag,

  608.             .amp_enabled_flag              = sps->amp_enabled_flag,

  609.             .sample_adaptive_offset_enabled_flag =

  610.                 sps->sample_adaptive_offset_enabled_flag,

  611.             .pcm_enabled_flag              = sps->pcm_enabled_flag,

  612.             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,

  613.             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,

  614.         },

  615. 

  616.         .log2_min_luma_coding_block_size_minus3 =

  617.             sps->log2_min_luma_coding_block_size_minus3,

  618.         .log2_diff_max_min_luma_coding_block_size =

  619.             sps->log2_diff_max_min_luma_coding_block_size,

  620.         .log2_min_transform_block_size_minus2 =

  621.             sps->log2_min_luma_transform_block_size_minus2,

  622.         .log2_diff_max_min_transform_block_size =

  623.             sps->log2_diff_max_min_luma_transform_block_size,

  624.         .max_transform_hierarchy_depth_inter =

  625.             sps->max_transform_hierarchy_depth_inter,

  626.         .max_transform_hierarchy_depth_intra =

  627.             sps->max_transform_hierarchy_depth_intra,

  628. 

  629.         .pcm_sample_bit_depth_luma_minus1 =

  630.             sps->pcm_sample_bit_depth_luma_minus1,

  631.         .pcm_sample_bit_depth_chroma_minus1 =

  632.             sps->pcm_sample_bit_depth_chroma_minus1,

  633.         .log2_min_pcm_luma_coding_block_size_minus3 =

  634.             sps->log2_min_pcm_luma_coding_block_size_minus3,

  635.         .log2_max_pcm_luma_coding_block_size_minus3 =

  636.             sps->log2_min_pcm_luma_coding_block_size_minus3 +

  637.             sps->log2_diff_max_min_pcm_luma_coding_block_size,

  638. 

  639.         .vui_parameters_present_flag = 0,

  640.     };

  641. 

  642.     *vpic = (VAEncPictureParameterBufferHEVC) {

  643.         .decoded_curr_pic = {

  644.             .picture_id = VA_INVALID_ID,

  645.             .flags      = VA_PICTURE_HEVC_INVALID,

  646.         },

  647. 

  648.         .coded_buf = VA_INVALID_ID,

  649. 

  650.         .collocated_ref_pic_index = 0xff,

  651. 

  652.         .last_picture = 0,

  653. 

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

  655.         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,

  656.         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,

  657.         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,

  658. 

  659.         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,

  660.         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,

  661. 

  662.         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,

  663.         .ctu_max_bitsize_allowed          = 0,

  664. 

  665.         .num_ref_idx_l0_default_active_minus1 =

  666.             pps->num_ref_idx_l0_default_active_minus1,

  667.         .num_ref_idx_l1_default_active_minus1 =

  668.             pps->num_ref_idx_l1_default_active_minus1,

  669. 

  670.         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,

  671. 

  672.         .pic_fields.bits = {

  673.             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,

  674.             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,

  675.             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,

  676.             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,

  677.             .weighted_pred_flag             = pps->weighted_pred_flag,

  678.             .weighted_bipred_flag           = pps->weighted_bipred_flag,

  679.             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,

  680.             .tiles_enabled_flag             = pps->tiles_enabled_flag,

  681.             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,

  682.             .loop_filter_across_tiles_enabled_flag =

  683.                 pps->loop_filter_across_tiles_enabled_flag,

  684.             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |

  685.                                                pps->pps_scaling_list_data_present_flag),

  686.             .screen_content_flag            = 0,

  687.             .enable_gpu_weighted_prediction = 0,

  688.             .no_output_of_prior_pics_flag   = 0,

  689.         },

  690.     };

  691. 

  692.     if (pps->tiles_enabled_flag) {

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

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

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

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

  697.     }

  698. 

  699.     return 0;

  700. }

  701. 

  702. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  703.                                                  VAAPIEncodePicture *pic)

  704. {

  705.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  706.     VAAPIEncodeH265Context          *priv = avctx->priv_data;

  707.     VAAPIEncodeH265Picture          *hpic = pic->priv_data;

  708.     VAAPIEncodePicture              *prev = pic->prev;

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

  710.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  711.     int i;

  712. 

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

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

  715. 

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

  717. 

  718.         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;

  719.         hpic->slice_type     = HEVC_SLICE_I;

  720.         hpic->pic_type       = 0;

  721.     } else {

  722.         av_assert0(prev);

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

  724. 

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

  726.             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;

  727.             hpic->slice_type     = HEVC_SLICE_I;

  728.             hpic->pic_type       = 0;

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

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

  731.             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;

  732.             hpic->slice_type     = HEVC_SLICE_P;

  733.             hpic->pic_type       = 1;

  734.         } else {

  735.             VAAPIEncodePicture *irap_ref;

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

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

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

  739.                     break;

  740.             }

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

  742.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N

  743.                                                 : HEVC_NAL_TRAIL_N;

  744.             } else {

  745.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R

  746.                                                 : HEVC_NAL_TRAIL_R;

  747.             }

  748.             hpic->slice_type = HEVC_SLICE_B;

  749.             hpic->pic_type   = 2;

  750.         }

  751.     }

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

  753. 

  754.     if (priv->aud) {

  755.         priv->aud_needed = 1;

  756.         priv->raw_aud = (H265RawAUD) {

  757.             .nal_unit_header = {

  758.                 .nal_unit_type         = HEVC_NAL_AUD,

  759.                 .nuh_layer_id          = 0,

  760.                 .nuh_temporal_id_plus1 = 1,

  761.             },

  762.             .pic_type = hpic->pic_type,

  763.         };

  764.     } else {

  765.         priv->aud_needed = 0;

  766.     }

  767. 

  768.     priv->sei_needed = 0;

  769. 

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

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

  772.     // changed on the input frame.

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

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

  775.         AVFrameSideData *sd =

  776.             av_frame_get_side_data(pic->input_image,

  777.                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);

  778. 

  779.         if (sd) {

  780.             AVMasteringDisplayMetadata *mdm =

  781.                 (AVMasteringDisplayMetadata *)sd->data;

  782. 

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

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

  785.                 SEIRawMasteringDisplayColourVolume *mdcv =

  786.                     &priv->sei_mastering_display;

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

  788.                 const int chroma_den = 50000;

  789.                 const int luma_den   = 10000;

  790. 

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

  792.                     const int j = mapping[i];

  793.                     mdcv->display_primaries_x[i] =

  794.                         FFMIN(lrint(chroma_den *

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

  796.                               chroma_den);

  797.                     mdcv->display_primaries_y[i] =

  798.                         FFMIN(lrint(chroma_den *

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

  800.                               chroma_den);

  801.                 }

  802. 

  803.                 mdcv->white_point_x =

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

  805.                           chroma_den);

  806.                 mdcv->white_point_y =

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

  808.                           chroma_den);

  809. 

  810.                 mdcv->max_display_mastering_luminance =

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

  812.                 mdcv->min_display_mastering_luminance =

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

  814.                           mdcv->max_display_mastering_luminance);

  815. 

  816.                 priv->sei_needed |= SEI_MASTERING_DISPLAY;

  817.             }

  818.         }

  819.     }

  820. 

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

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

  823.         AVFrameSideData *sd =

  824.             av_frame_get_side_data(pic->input_image,

  825.                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);

  826. 

  827.         if (sd) {

  828.             AVContentLightMetadata *clm =

  829.                 (AVContentLightMetadata *)sd->data;

  830.             SEIRawContentLightLevelInfo *clli =

  831.                 &priv->sei_content_light_level;

  832. 

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

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

  835. 

  836.             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;

  837.         }

  838.     }

  839. 

  840.     vpic->decoded_curr_pic = (VAPictureHEVC) {

  841.         .picture_id    = pic->recon_surface,

  842.         .pic_order_cnt = hpic->pic_order_cnt,

  843.         .flags         = 0,

  844.     };

  845. 

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

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

  848.         VAAPIEncodeH265Picture *href;

  849. 

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

  851.         href = ref->priv_data;

  852. 

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

  854.             .picture_id    = ref->recon_surface,

  855.             .pic_order_cnt = href->pic_order_cnt,

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

  857.                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

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

  859.                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),

  860.         };

  861.     }

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

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

  864.             .picture_id = VA_INVALID_ID,

  865.             .flags      = VA_PICTURE_HEVC_INVALID,

  866.         };

  867.     }

  868. 

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

  870. 

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

  872. 

  873.     switch (pic->type) {

  874.     case PICTURE_TYPE_IDR:

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

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

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

  878.         break;

  879.     case PICTURE_TYPE_I:

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

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

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

  883.         break;

  884.     case PICTURE_TYPE_P:

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

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

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

  888.         break;

  889.     case PICTURE_TYPE_B:

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

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

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

  893.         break;

  894.     default:

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

  896.     }

  897. 

  898.     return 0;

  899. }

  900. 

  901. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  902.                                                VAAPIEncodePicture *pic,

  903.                                                VAAPIEncodeSlice *slice)

  904. {

  905.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

  906.     VAAPIEncodeH265Picture           *hpic = pic->priv_data;

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

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

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

  910.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  911.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  912.     int i;

  913. 

  914.     sh->nal_unit_header = (H265RawNALUnitHeader) {

  915.         .nal_unit_type         = hpic->slice_nal_unit,

  916.         .nuh_layer_id          = 0,

  917.         .nuh_temporal_id_plus1 = 1,

  918.     };

  919. 

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

  921. 

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

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

  924. 

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

  926. 

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

  928.         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;

  929. 

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

  931.         H265RawSTRefPicSet *rps;

  932.         const VAAPIEncodeH265Picture *strp;

  933.         int rps_poc[MAX_DPB_SIZE];

  934.         int rps_used[MAX_DPB_SIZE];

  935.         int i, j, poc, rps_pics;

  936. 

  937.         sh->short_term_ref_pic_set_sps_flag = 0;

  938. 

  939.         rps = &sh->short_term_ref_pic_set;

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

  941. 

  942.         rps_pics = 0;

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

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

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

  946.             rps_used[rps_pics] = 1;

  947.             ++rps_pics;

  948.         }

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

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

  951.                 continue;

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

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

  954.                     break;

  955.             }

  956.             if (j < pic->nb_refs)

  957.                 continue;

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

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

  960.             rps_used[rps_pics] = 0;

  961.             ++rps_pics;

  962.         }

  963. 

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

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

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

  967.                     break;

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

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

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

  971.             }

  972.         }

  973. 

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

  975.                hpic->pic_order_cnt);

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

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

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

  979.         }

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

  981. 

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

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

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

  985.                 break;

  986.         }

  987. 

  988.         rps->num_negative_pics = i;

  989.         poc = hpic->pic_order_cnt;

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

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

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

  993.             poc = rps_poc[j];

  994.         }

  995. 

  996.         rps->num_positive_pics = rps_pics - i;

  997.         poc = hpic->pic_order_cnt;

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

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

  1000.             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];

  1001.             poc = rps_poc[j];

  1002.         }

  1003. 

  1004.         sh->num_long_term_sps  = 0;

  1005.         sh->num_long_term_pics = 0;

  1006. 

  1007.         sh->slice_temporal_mvp_enabled_flag =

  1008.             sps->sps_temporal_mvp_enabled_flag;

  1009.         if (sh->slice_temporal_mvp_enabled_flag) {

  1010.             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;

  1011.             sh->collocated_ref_idx      = 0;

  1012.         }

  1013. 

  1014.         sh->num_ref_idx_active_override_flag = 0;

  1015.         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;

  1016.         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;

  1017.     }

  1018. 

  1019.     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =

  1020.         sps->sample_adaptive_offset_enabled_flag;

  1021. 

  1022.     if (pic->type == PICTURE_TYPE_B)

  1023.         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);

  1024.     else if (pic->type == PICTURE_TYPE_P)

  1025.         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);

  1026.     else

  1027.         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);

  1028. 

  1029. 

  1030.     *vslice = (VAEncSliceParameterBufferHEVC) {

  1031.         .slice_segment_address = sh->slice_segment_address,

  1032.         .num_ctu_in_slice      = slice->block_size,

  1033. 

  1034.         .slice_type                 = sh->slice_type,

  1035.         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,

  1036. 

  1037.         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,

  1038.         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,

  1039. 

  1040.         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,

  1041.         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,

  1042. 

  1043.         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,

  1044. 

  1045.         .slice_qp_delta     = sh->slice_qp_delta,

  1046.         .slice_cb_qp_offset = sh->slice_cb_qp_offset,

  1047.         .slice_cr_qp_offset = sh->slice_cr_qp_offset,

  1048. 

  1049.         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,

  1050.         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,

  1051. 

  1052.         .slice_fields.bits = {

  1053.             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,

  1054.             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,

  1055.             .colour_plane_id              = sh->colour_plane_id,

  1056.             .slice_temporal_mvp_enabled_flag =

  1057.                 sh->slice_temporal_mvp_enabled_flag,

  1058.             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,

  1059.             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,

  1060.             .num_ref_idx_active_override_flag =

  1061.                 sh->num_ref_idx_active_override_flag,

  1062.             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,

  1063.             .cabac_init_flag              = sh->cabac_init_flag,

  1064.             .slice_deblocking_filter_disabled_flag =

  1065.                 sh->slice_deblocking_filter_disabled_flag,

  1066.             .slice_loop_filter_across_slices_enabled_flag =

  1067.                 sh->slice_loop_filter_across_slices_enabled_flag,

  1068.             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,

  1069.         },

  1070.     };

  1071. 

  1072.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {

  1073.         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;

  1074.         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;

  1075.         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;

  1076.         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;

  1077.     }

  1078. 

  1079.     av_assert0(pic->nb_refs <= 2);

  1080.     if (pic->nb_refs >= 1) {

  1081.         // Backward reference for P- or B-frame.

  1082.         av_assert0(pic->type == PICTURE_TYPE_P ||

  1083.                    pic->type == PICTURE_TYPE_B);

  1084.         vslice->ref_pic_list0[0] = vpic->reference_frames[0];

  1085.     }

  1086.     if (pic->nb_refs >= 2) {

  1087.         // Forward reference for B-frame.

  1088.         av_assert0(pic->type == PICTURE_TYPE_B);

  1089.         vslice->ref_pic_list1[0] = vpic->reference_frames[1];

  1090.     }

  1091. 

  1092.     return 0;

  1093. }

  1094. 

  1095. static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)

  1096. {

  1097.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1098.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1099.     int err;

  1100. 

  1101.     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);

  1102.     if (err < 0)

  1103.         return err;

  1104. 

  1105.     if (ctx->va_rc_mode == VA_RC_CQP) {

  1106.         // Note that VAAPI only supports positive QP values - the range is

  1107.         // therefore always bounded below by 1, even in 10-bit mode where

  1108.         // it should go down to -12.

  1109. 

  1110.         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);

  1111.         if (avctx->i_quant_factor > 0.0)

  1112.             priv->fixed_qp_idr =

  1113.                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +

  1114.                          avctx->i_quant_offset) + 0.5, 1, 51);

  1115.         else

  1116.             priv->fixed_qp_idr = priv->fixed_qp_p;

  1117.         if (avctx->b_quant_factor > 0.0)

  1118.             priv->fixed_qp_b =

  1119.                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +

  1120.                          avctx->b_quant_offset) + 0.5, 1, 51);

  1121.         else

  1122.             priv->fixed_qp_b = priv->fixed_qp_p;

  1123. 

  1124.         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "

  1125.                "%d / %d / %d for IDR- / P- / B-frames.\n",

  1126.                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);

  1127. 

  1128.     } else {

  1129.         // These still need to be set for init_qp/slice_qp_delta.

  1130.         priv->fixed_qp_idr = 30;

  1131.         priv->fixed_qp_p   = 30;

  1132.         priv->fixed_qp_b   = 30;

  1133.     }

  1134. 

  1135.     ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);

  1136. 

  1137.     return 0;

  1138. }

  1139. 

  1140. static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {

  1141.     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },

  1142.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },

  1143. #if VA_CHECK_VERSION(0, 37, 0)

  1144.     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },

  1145.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },

  1146. #endif

  1147. #if VA_CHECK_VERSION(1, 2, 0)

  1148.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 0, VAProfileHEVCMain422_10 },

  1149.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 0, VAProfileHEVCMain422_10 },

  1150. #endif

  1151.     { FF_PROFILE_UNKNOWN }

  1152. };

  1153. 

  1154. static const VAAPIEncodeType vaapi_encode_type_h265 = {

  1155.     .profiles              = vaapi_encode_h265_profiles,

  1156. 

  1157.     .flags                 = FLAG_SLICE_CONTROL |

  1158.                              FLAG_B_PICTURES |

  1159.                              FLAG_B_PICTURE_REFERENCES |

  1160.                              FLAG_NON_IDR_KEY_PICTURES,

  1161. 

  1162.     .default_quality       = 25,

  1163. 

  1164.     .configure             = &vaapi_encode_h265_configure,

  1165. 

  1166.     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),

  1167. 

  1168.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  1169.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  1170. 

  1171.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  1172.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  1173. 

  1174.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  1175.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  1176. 

  1177.     .sequence_header_type  = VAEncPackedHeaderSequence,

  1178.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  1179. 

  1180.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  1181.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  1182. 

  1183.     .write_extra_header    = &vaapi_encode_h265_write_extra_header,

  1184. };

  1185. 

  1186. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  1187. {

  1188.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1189.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1190. 

  1191.     ctx->codec = &vaapi_encode_type_h265;

  1192. 

  1193.     if (avctx->profile == FF_PROFILE_UNKNOWN)

  1194.         avctx->profile = priv->profile;

  1195.     if (avctx->level == FF_LEVEL_UNKNOWN)

  1196.         avctx->level = priv->level;

  1197. 

  1198.     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {

  1199.         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "

  1200.                "in 8-bit unsigned integer.\n", avctx->level);

  1201.         return AVERROR(EINVAL);

  1202.     }

  1203. 

  1204.     ctx->desired_packed_headers =

  1205.         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.

  1206.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  1207.         VA_ENC_PACKED_HEADER_MISC;      // SEI

  1208. 

  1209.     ctx->surface_width  = FFALIGN(avctx->width,  16);

  1210.     ctx->surface_height = FFALIGN(avctx->height, 16);

  1211. 

  1212.     // CTU size is currently hard-coded to 32.

  1213.     ctx->slice_block_width = ctx->slice_block_height = 32;

  1214. 

  1215.     if (priv->qp > 0)

  1216.         ctx->explicit_qp = priv->qp;

  1217. 

  1218.     return ff_vaapi_encode_init(avctx);

  1219. }

  1220. 

  1221. static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)

  1222. {

  1223.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1224. 

  1225.     ff_cbs_fragment_free(&priv->current_access_unit);

  1226.     ff_cbs_close(&priv->cbc);

  1227. 

  1228.     return ff_vaapi_encode_close(avctx);

  1229. }

  1230. 

  1231. #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)

  1232. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  1233. static const AVOption vaapi_encode_h265_options[] = {

  1234.     VAAPI_ENCODE_COMMON_OPTIONS,

  1235.     VAAPI_ENCODE_RC_OPTIONS,

  1236. 

  1237.     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

  1238.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },

  1239. 

  1240.     { "aud", "Include AUD",

  1241.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1242. 

  1243.     { "profile", "Set profile (general_profile_idc)",

  1244.       OFFSET(profile), AV_OPT_TYPE_INT,

  1245.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },

  1246. 

  1247. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1248.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1249.     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },

  1250.     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },

  1251.     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },

  1252. #undef PROFILE

  1253. 

  1254.     { "tier", "Set tier (general_tier_flag)",

  1255.       OFFSET(tier), AV_OPT_TYPE_INT,

  1256.       { .i64 = 0 }, 0, 1, FLAGS, "tier" },

  1257.     { "main", NULL, 0, AV_OPT_TYPE_CONST,

  1258.       { .i64 = 0 }, 0, 0, FLAGS, "tier" },

  1259.     { "high", NULL, 0, AV_OPT_TYPE_CONST,

  1260.       { .i64 = 1 }, 0, 0, FLAGS, "tier" },

  1261. 

  1262.     { "level", "Set level (general_level_idc)",

  1263.       OFFSET(level), AV_OPT_TYPE_INT,

  1264.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1265. 

  1266. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1267.       { .i64 = value }, 0, 0, FLAGS, "level"

  1268.     { LEVEL("1",    30) },

  1269.     { LEVEL("2",    60) },

  1270.     { LEVEL("2.1",  63) },

  1271.     { LEVEL("3",    90) },

  1272.     { LEVEL("3.1",  93) },

  1273.     { LEVEL("4",   120) },

  1274.     { LEVEL("4.1", 123) },

  1275.     { LEVEL("5",   150) },

  1276.     { LEVEL("5.1", 153) },

  1277.     { LEVEL("5.2", 156) },

  1278.     { LEVEL("6",   180) },

  1279.     { LEVEL("6.1", 183) },

  1280.     { LEVEL("6.2", 186) },

  1281. #undef LEVEL

  1282. 

  1283.     { "sei", "Set SEI to include",

  1284.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1285.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1286.       0, INT_MAX, FLAGS, "sei" },

  1287.     { "hdr",

  1288.       "Include HDR metadata for mastering display colour volume "

  1289.       "and content light level information",

  1290.       0, AV_OPT_TYPE_CONST,

  1291.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1292.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1293. 

  1294.     { "tiles", "Tile columns x rows",

  1295.       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,

  1296.       { .str = NULL }, 0, 0, FLAGS },

  1297. 

  1298.     { NULL },

  1299. };

  1300. 

  1301. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  1302.     { "b",              "0"   },

  1303.     { "bf",             "2"   },

  1304.     { "g",              "120" },

  1305.     { "i_qfactor",      "1"   },

  1306.     { "i_qoffset",      "0"   },

  1307.     { "b_qfactor",      "6/5" },

  1308.     { "b_qoffset",      "0"   },

  1309.     { "qmin",           "-1"  },

  1310.     { "qmax",           "-1"  },

  1311.     { NULL },

  1312. };

  1313. 

  1314. static const AVClass vaapi_encode_h265_class = {

  1315.     .class_name = "h265_vaapi",

  1316.     .item_name  = av_default_item_name,

  1317.     .option     = vaapi_encode_h265_options,

  1318.     .version    = LIBAVUTIL_VERSION_INT,

  1319. };

  1320. 

  1321. AVCodec ff_hevc_vaapi_encoder = {

  1322.     .name           = "hevc_vaapi",

  1323.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1324.     .type           = AVMEDIA_TYPE_VIDEO,

  1325.     .id             = AV_CODEC_ID_HEVC,

  1326.     .priv_data_size = sizeof(VAAPIEncodeH265Context),

  1327.     .init           = &vaapi_encode_h265_init,

  1328.     .receive_packet = &ff_vaapi_encode_receive_packet,

  1329.     .close          = &vaapi_encode_h265_close,

  1330.     .priv_class     = &vaapi_encode_h265_class,

  1331.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1332.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  1333.     .defaults       = vaapi_encode_h265_defaults,

  1334.     .pix_fmts = (const enum AVPixelFormat[]) {

  1335.         AV_PIX_FMT_VAAPI,

  1336.         AV_PIX_FMT_NONE,

  1337.     },

  1338.     .hw_configs     = ff_vaapi_encode_hw_configs,

  1339.     .wrapper_name   = "vaapi",

  1340. };