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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.     H265RawSEIMasteringDisplayColourVolume sei_mastering_display;

  80.     H265RawSEIContentLightLevelInfo        sei_content_light_level;

  81. 

  82.     CodedBitstreamContext *cbc;

  83.     CodedBitstreamFragment current_access_unit;

  84.     int aud_needed;

  85.     int sei_needed;

  86. } VAAPIEncodeH265Context;

  87. 

  88. 

  89. static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,

  90.                                                char *data, size_t *data_len,

  91.                                                CodedBitstreamFragment *au)

  92. {

  93.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  94.     int err;

  95. 

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

  97.     if (err < 0) {

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

  99.         return err;

  100.     }

  101. 

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

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

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

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

  106.         return AVERROR(ENOSPC);

  107.     }

  108. 

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

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

  111. 

  112.     return 0;

  113. }

  114. 

  115. static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,

  116.                                      CodedBitstreamFragment *au,

  117.                                      void *nal_unit)

  118. {

  119.     H265RawNALUnitHeader *header = nal_unit;

  120.     int err;

  121. 

  122.     err = ff_cbs_insert_unit_content(au, -1,

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

  124.     if (err < 0) {

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

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

  127.         return err;

  128.     }

  129. 

  130.     return 0;

  131. }

  132. 

  133. static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,

  134.                                                    char *data, size_t *data_len)

  135. {

  136.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  138.     int err;

  139. 

  140.     if (priv->aud_needed) {

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

  142.         if (err < 0)

  143.             goto fail;

  144.         priv->aud_needed = 0;

  145.     }

  146. 

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

  148.     if (err < 0)

  149.         goto fail;

  150. 

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

  152.     if (err < 0)

  153.         goto fail;

  154. 

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

  156.     if (err < 0)

  157.         goto fail;

  158. 

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

  160. fail:

  161.     ff_cbs_fragment_reset(au);

  162.     return err;

  163. }

  164. 

  165. static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,

  166.                                                 VAAPIEncodePicture *pic,

  167.                                                 VAAPIEncodeSlice *slice,

  168.                                                 char *data, size_t *data_len)

  169. {

  170.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  172.     int err;

  173. 

  174.     if (priv->aud_needed) {

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

  176.         if (err < 0)

  177.             goto fail;

  178.         priv->aud_needed = 0;

  179.     }

  180. 

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

  182.     if (err < 0)

  183.         goto fail;

  184. 

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

  186. fail:

  187.     ff_cbs_fragment_reset(au);

  188.     return err;

  189. }

  190. 

  191. static int vaapi_encode_h265_write_extra_header(AVCodecContext *avctx,

  192.                                                 VAAPIEncodePicture *pic,

  193.                                                 int index, int *type,

  194.                                                 char *data, size_t *data_len)

  195. {

  196.     VAAPIEncodeH265Context *priv = avctx->priv_data;

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

  198.     int err, i;

  199. 

  200.     if (priv->sei_needed) {

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

  202. 

  203.         if (priv->aud_needed) {

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

  205.             if (err < 0)

  206.                 goto fail;

  207.             priv->aud_needed = 0;

  208.         }

  209. 

  210.         *sei = (H265RawSEI) {

  211.             .nal_unit_header = {

  212.                 .nal_unit_type         = HEVC_NAL_SEI_PREFIX,

  213.                 .nuh_layer_id          = 0,

  214.                 .nuh_temporal_id_plus1 = 1,

  215.             },

  216.         };

  217. 

  218.         i = 0;

  219. 

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

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

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

  223.             ++i;

  224.         }

  225. 

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

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

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

  229.             ++i;

  230.         }

  231. 

  232.         sei->payload_count = i;

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

  234. 

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

  236.         if (err < 0)

  237.             goto fail;

  238.         priv->sei_needed = 0;

  239. 

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

  241.         if (err < 0)

  242.             goto fail;

  243. 

  244.         ff_cbs_fragment_reset(au);

  245. 

  246.         *type = VAEncPackedHeaderRawData;

  247.         return 0;

  248.     } else {

  249.         return AVERROR_EOF;

  250.     }

  251. 

  252. fail:

  253.     ff_cbs_fragment_reset(au);

  254.     return err;

  255. }

  256. 

  257. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  258. {

  259.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  260.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

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

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

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

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

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

  266.     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;

  267.     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;

  268.     const AVPixFmtDescriptor *desc;

  269.     int chroma_format, bit_depth;

  270.     int i;

  271. 

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

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

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

  275. 

  276. 

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

  278.     av_assert0(desc);

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

  280.         chroma_format = 0;

  281.     } else {

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

  283.             chroma_format = 1;

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

  285.             chroma_format = 2;

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

  287.             chroma_format = 3;

  288.         } else {

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

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

  291.             return AVERROR(EINVAL);

  292.         }

  293.     }

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

  295. 

  296. 

  297.     // VPS

  298. 

  299.     vps->nal_unit_header = (H265RawNALUnitHeader) {

  300.         .nal_unit_type         = HEVC_NAL_VPS,

  301.         .nuh_layer_id          = 0,

  302.         .nuh_temporal_id_plus1 = 1,

  303.     };

  304. 

  305.     vps->vps_video_parameter_set_id = 0;

  306. 

  307.     vps->vps_base_layer_internal_flag  = 1;

  308.     vps->vps_base_layer_available_flag = 1;

  309.     vps->vps_max_layers_minus1         = 0;

  310.     vps->vps_max_sub_layers_minus1     = 0;

  311.     vps->vps_temporal_id_nesting_flag  = 1;

  312. 

  313.     ptl->general_profile_space = 0;

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

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

  316. 

  317.     if (chroma_format == 1) {

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

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

  320.     }

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

  322. 

  323.     ptl->general_progressive_source_flag    = 1;

  324.     ptl->general_interlaced_source_flag     = 0;

  325.     ptl->general_non_packed_constraint_flag = 1;

  326.     ptl->general_frame_only_constraint_flag = 1;

  327. 

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

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

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

  331. 

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

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

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

  335. 

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

  337. 

  338.     ptl->general_lower_bit_rate_constraint_flag = 1;

  339. 

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

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

  342.     } else {

  343.         const H265LevelDescriptor *level;

  344. 

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

  346.                                     ctx->surface_width, ctx->surface_height,

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

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

  349.         if (level) {

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

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

  352.         } else {

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

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

  355.             ptl->general_level_idc = 255;

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

  357.             ptl->general_tier_flag = 1;

  358.         }

  359.     }

  360. 

  361.     vps->vps_sub_layer_ordering_info_present_flag = 0;

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

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

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

  365. 

  366.     vps->vps_max_layer_id             = 0;

  367.     vps->vps_num_layer_sets_minus1    = 0;

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

  369. 

  370.     vps->vps_timing_info_present_flag = 1;

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

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

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

  374.         vps->vps_poc_proportional_to_timing_flag = 1;

  375.         vps->vps_num_ticks_poc_diff_one_minus1   = 0;

  376.     } else {

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

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

  379.         vps->vps_poc_proportional_to_timing_flag = 0;

  380.     }

  381.     vps->vps_num_hrd_parameters = 0;

  382. 

  383. 

  384.     // SPS

  385. 

  386.     sps->nal_unit_header = (H265RawNALUnitHeader) {

  387.         .nal_unit_type         = HEVC_NAL_SPS,

  388.         .nuh_layer_id          = 0,

  389.         .nuh_temporal_id_plus1 = 1,

  390.     };

  391. 

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

  393. 

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

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

  396. 

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

  398. 

  399.     sps->sps_seq_parameter_set_id = 0;

  400. 

  401.     sps->chroma_format_idc          = chroma_format;

  402.     sps->separate_colour_plane_flag = 0;

  403. 

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

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

  406. 

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

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

  409.         sps->conformance_window_flag = 1;

  410.         sps->conf_win_left_offset   = 0;

  411.         sps->conf_win_right_offset  =

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

  413.         sps->conf_win_top_offset    = 0;

  414.         sps->conf_win_bottom_offset =

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

  416.     } else {

  417.         sps->conformance_window_flag = 0;

  418.     }

  419. 

  420.     sps->bit_depth_luma_minus8   = bit_depth - 8;

  421.     sps->bit_depth_chroma_minus8 = bit_depth - 8;

  422. 

  423.     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;

  424. 

  425.     sps->sps_sub_layer_ordering_info_present_flag =

  426.         vps->vps_sub_layer_ordering_info_present_flag;

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

  428.         sps->sps_max_dec_pic_buffering_minus1[i] =

  429.             vps->vps_max_dec_pic_buffering_minus1[i];

  430.         sps->sps_max_num_reorder_pics[i] =

  431.             vps->vps_max_num_reorder_pics[i];

  432.         sps->sps_max_latency_increase_plus1[i] =

  433.             vps->vps_max_latency_increase_plus1[i];

  434.     }

  435. 

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

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

  438.     // driver.

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

  440.     sps->log2_min_luma_coding_block_size_minus3   = 0;

  441.     sps->log2_diff_max_min_luma_coding_block_size = 2;

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

  443.     sps->log2_min_luma_transform_block_size_minus2   = 0;

  444.     sps->log2_diff_max_min_luma_transform_block_size = 3;

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

  446.     sps->max_transform_hierarchy_depth_inter = 3;

  447.     sps->max_transform_hierarchy_depth_intra = 3;

  448.     // AMP works.

  449.     sps->amp_enabled_flag = 1;

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

  451.     sps->sample_adaptive_offset_enabled_flag = 0;

  452.     sps->sps_temporal_mvp_enabled_flag       = 0;

  453. 

  454.     sps->pcm_enabled_flag = 0;

  455. 

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

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

  458.     // don't bother.

  459.     sps->num_short_term_ref_pic_sets     = 0;

  460.     sps->long_term_ref_pics_present_flag = 0;

  461. 

  462.     sps->vui_parameters_present_flag = 1;

  463. 

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

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

  466.         static const AVRational sar_idc[] = {

  467.             {   0,  0 },

  468.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  469.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  470.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  471.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  472.         };

  473.         int num, den, i;

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

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

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

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

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

  479.                 vui->aspect_ratio_idc = i;

  480.                 break;

  481.             }

  482.         }

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

  484.             vui->aspect_ratio_idc = 255;

  485.             vui->sar_width  = num;

  486.             vui->sar_height = den;

  487.         }

  488.         vui->aspect_ratio_info_present_flag = 1;

  489.     }

  490. 

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

  492.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  493.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  494.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  495.         vui->video_signal_type_present_flag = 1;

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

  497.         vui->video_full_range_flag =

  498.             avctx->color_range == AVCOL_RANGE_JPEG;

  499. 

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

  501.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  502.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  503.             vui->colour_description_present_flag = 1;

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

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

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

  507.         }

  508.     } else {

  509.         vui->video_format             = 5;

  510.         vui->video_full_range_flag    = 0;

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

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

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

  514.     }

  515. 

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

  517.         vui->chroma_loc_info_present_flag = 1;

  518.         vui->chroma_sample_loc_type_top_field    =

  519.         vui->chroma_sample_loc_type_bottom_field =

  520.             avctx->chroma_sample_location - 1;

  521.     }

  522. 

  523.     vui->vui_timing_info_present_flag        = 1;

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

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

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

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

  528.     vui->vui_hrd_parameters_present_flag     = 0;

  529. 

  530.     vui->bitstream_restriction_flag    = 1;

  531.     vui->motion_vectors_over_pic_boundaries_flag = 1;

  532.     vui->restricted_ref_pic_lists_flag = 1;

  533.     vui->max_bytes_per_pic_denom       = 0;

  534.     vui->max_bits_per_min_cu_denom     = 0;

  535.     vui->log2_max_mv_length_horizontal = 15;

  536.     vui->log2_max_mv_length_vertical   = 15;

  537. 

  538. 

  539.     // PPS

  540. 

  541.     pps->nal_unit_header = (H265RawNALUnitHeader) {

  542.         .nal_unit_type         = HEVC_NAL_PPS,

  543.         .nuh_layer_id          = 0,

  544.         .nuh_temporal_id_plus1 = 1,

  545.     };

  546. 

  547.     pps->pps_pic_parameter_set_id = 0;

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

  549. 

  550.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  551.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  552. 

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

  554. 

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

  556.     pps->diff_cu_qp_delta_depth   = 0;

  557. 

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

  559.         int uniform_spacing;

  560. 

  561.         pps->tiles_enabled_flag      = 1;

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

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

  564. 

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

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

  567.         uniform_spacing = 1;

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

  569.                     uniform_spacing; i++) {

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

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

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

  573.                 uniform_spacing = 0;

  574.         }

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

  576.                     uniform_spacing; i++) {

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

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

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

  580.                 uniform_spacing = 0;

  581.         }

  582.         pps->uniform_spacing_flag = uniform_spacing;

  583. 

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

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

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

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

  588. 

  589.         pps->loop_filter_across_tiles_enabled_flag = 1;

  590.     }

  591. 

  592.     pps->pps_loop_filter_across_slices_enabled_flag = 1;

  593. 

  594.     // Fill VAAPI parameter buffers.

  595. 

  596.     *vseq = (VAEncSequenceParameterBufferHEVC) {

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

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

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

  600. 

  601.         .intra_period     = ctx->gop_size,

  602.         .intra_idr_period = ctx->gop_size,

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

  604.         .bits_per_second  = ctx->va_bit_rate,

  605. 

  606.         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,

  607.         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,

  608. 

  609.         .seq_fields.bits = {

  610.             .chroma_format_idc             = sps->chroma_format_idc,

  611.             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,

  612.             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,

  613.             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,

  614.             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,

  615.             .strong_intra_smoothing_enabled_flag =

  616.                 sps->strong_intra_smoothing_enabled_flag,

  617.             .amp_enabled_flag              = sps->amp_enabled_flag,

  618.             .sample_adaptive_offset_enabled_flag =

  619.                 sps->sample_adaptive_offset_enabled_flag,

  620.             .pcm_enabled_flag              = sps->pcm_enabled_flag,

  621.             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,

  622.             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,

  623.         },

  624. 

  625.         .log2_min_luma_coding_block_size_minus3 =

  626.             sps->log2_min_luma_coding_block_size_minus3,

  627.         .log2_diff_max_min_luma_coding_block_size =

  628.             sps->log2_diff_max_min_luma_coding_block_size,

  629.         .log2_min_transform_block_size_minus2 =

  630.             sps->log2_min_luma_transform_block_size_minus2,

  631.         .log2_diff_max_min_transform_block_size =

  632.             sps->log2_diff_max_min_luma_transform_block_size,

  633.         .max_transform_hierarchy_depth_inter =

  634.             sps->max_transform_hierarchy_depth_inter,

  635.         .max_transform_hierarchy_depth_intra =

  636.             sps->max_transform_hierarchy_depth_intra,

  637. 

  638.         .pcm_sample_bit_depth_luma_minus1 =

  639.             sps->pcm_sample_bit_depth_luma_minus1,

  640.         .pcm_sample_bit_depth_chroma_minus1 =

  641.             sps->pcm_sample_bit_depth_chroma_minus1,

  642.         .log2_min_pcm_luma_coding_block_size_minus3 =

  643.             sps->log2_min_pcm_luma_coding_block_size_minus3,

  644.         .log2_max_pcm_luma_coding_block_size_minus3 =

  645.             sps->log2_min_pcm_luma_coding_block_size_minus3 +

  646.             sps->log2_diff_max_min_pcm_luma_coding_block_size,

  647. 

  648.         .vui_parameters_present_flag = 0,

  649.     };

  650. 

  651.     *vpic = (VAEncPictureParameterBufferHEVC) {

  652.         .decoded_curr_pic = {

  653.             .picture_id = VA_INVALID_ID,

  654.             .flags      = VA_PICTURE_HEVC_INVALID,

  655.         },

  656. 

  657.         .coded_buf = VA_INVALID_ID,

  658. 

  659.         .collocated_ref_pic_index = 0xff,

  660. 

  661.         .last_picture = 0,

  662. 

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

  664.         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,

  665.         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,

  666.         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,

  667. 

  668.         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,

  669.         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,

  670. 

  671.         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,

  672.         .ctu_max_bitsize_allowed          = 0,

  673. 

  674.         .num_ref_idx_l0_default_active_minus1 =

  675.             pps->num_ref_idx_l0_default_active_minus1,

  676.         .num_ref_idx_l1_default_active_minus1 =

  677.             pps->num_ref_idx_l1_default_active_minus1,

  678. 

  679.         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,

  680. 

  681.         .pic_fields.bits = {

  682.             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,

  683.             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,

  684.             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,

  685.             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,

  686.             .weighted_pred_flag             = pps->weighted_pred_flag,

  687.             .weighted_bipred_flag           = pps->weighted_bipred_flag,

  688.             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,

  689.             .tiles_enabled_flag             = pps->tiles_enabled_flag,

  690.             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,

  691.             .loop_filter_across_tiles_enabled_flag =

  692.                 pps->loop_filter_across_tiles_enabled_flag,

  693.             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |

  694.                                                pps->pps_scaling_list_data_present_flag),

  695.             .screen_content_flag            = 0,

  696.             .enable_gpu_weighted_prediction = 0,

  697.             .no_output_of_prior_pics_flag   = 0,

  698.         },

  699.     };

  700. 

  701.     if (pps->tiles_enabled_flag) {

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

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

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

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

  706.     }

  707. 

  708.     return 0;

  709. }

  710. 

  711. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  712.                                                  VAAPIEncodePicture *pic)

  713. {

  714.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  715.     VAAPIEncodeH265Context          *priv = avctx->priv_data;

  716.     VAAPIEncodeH265Picture          *hpic = pic->priv_data;

  717.     VAAPIEncodePicture              *prev = pic->prev;

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

  719.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  720.     int i;

  721. 

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

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

  724. 

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

  726. 

  727.         hpic->slice_nal_unit = HEVC_NAL_IDR_W_RADL;

  728.         hpic->slice_type     = HEVC_SLICE_I;

  729.         hpic->pic_type       = 0;

  730.     } else {

  731.         av_assert0(prev);

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

  733. 

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

  735.             hpic->slice_nal_unit = HEVC_NAL_CRA_NUT;

  736.             hpic->slice_type     = HEVC_SLICE_I;

  737.             hpic->pic_type       = 0;

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

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

  740.             hpic->slice_nal_unit = HEVC_NAL_TRAIL_R;

  741.             hpic->slice_type     = HEVC_SLICE_P;

  742.             hpic->pic_type       = 1;

  743.         } else {

  744.             VAAPIEncodePicture *irap_ref;

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

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

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

  748.                     break;

  749.             }

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

  751.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_N

  752.                                                 : HEVC_NAL_TRAIL_N;

  753.             } else {

  754.                 hpic->slice_nal_unit = irap_ref ? HEVC_NAL_RASL_R

  755.                                                 : HEVC_NAL_TRAIL_R;

  756.             }

  757.             hpic->slice_type = HEVC_SLICE_B;

  758.             hpic->pic_type   = 2;

  759.         }

  760.     }

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

  762. 

  763.     if (priv->aud) {

  764.         priv->aud_needed = 1;

  765.         priv->raw_aud = (H265RawAUD) {

  766.             .nal_unit_header = {

  767.                 .nal_unit_type         = HEVC_NAL_AUD,

  768.                 .nuh_layer_id          = 0,

  769.                 .nuh_temporal_id_plus1 = 1,

  770.             },

  771.             .pic_type = hpic->pic_type,

  772.         };

  773.     } else {

  774.         priv->aud_needed = 0;

  775.     }

  776. 

  777.     priv->sei_needed = 0;

  778. 

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

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

  781.     // changed on the input frame.

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

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

  784.         AVFrameSideData *sd =

  785.             av_frame_get_side_data(pic->input_image,

  786.                                    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);

  787. 

  788.         if (sd) {

  789.             AVMasteringDisplayMetadata *mdm =

  790.                 (AVMasteringDisplayMetadata *)sd->data;

  791. 

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

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

  794.                 H265RawSEIMasteringDisplayColourVolume *mdcv =

  795.                     &priv->sei_mastering_display;

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

  797.                 const int chroma_den = 50000;

  798.                 const int luma_den   = 10000;

  799. 

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

  801.                     const int j = mapping[i];

  802.                     mdcv->display_primaries_x[i] =

  803.                         FFMIN(lrint(chroma_den *

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

  805.                               chroma_den);

  806.                     mdcv->display_primaries_y[i] =

  807.                         FFMIN(lrint(chroma_den *

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

  809.                               chroma_den);

  810.                 }

  811. 

  812.                 mdcv->white_point_x =

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

  814.                           chroma_den);

  815.                 mdcv->white_point_y =

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

  817.                           chroma_den);

  818. 

  819.                 mdcv->max_display_mastering_luminance =

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

  821.                 mdcv->min_display_mastering_luminance =

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

  823.                           mdcv->max_display_mastering_luminance);

  824. 

  825.                 priv->sei_needed |= SEI_MASTERING_DISPLAY;

  826.             }

  827.         }

  828.     }

  829. 

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

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

  832.         AVFrameSideData *sd =

  833.             av_frame_get_side_data(pic->input_image,

  834.                                    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);

  835. 

  836.         if (sd) {

  837.             AVContentLightMetadata *clm =

  838.                 (AVContentLightMetadata *)sd->data;

  839.             H265RawSEIContentLightLevelInfo *clli =

  840.                 &priv->sei_content_light_level;

  841. 

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

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

  844. 

  845.             priv->sei_needed |= SEI_CONTENT_LIGHT_LEVEL;

  846.         }

  847.     }

  848. 

  849.     vpic->decoded_curr_pic = (VAPictureHEVC) {

  850.         .picture_id    = pic->recon_surface,

  851.         .pic_order_cnt = hpic->pic_order_cnt,

  852.         .flags         = 0,

  853.     };

  854. 

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

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

  857.         VAAPIEncodeH265Picture *href;

  858. 

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

  860.         href = ref->priv_data;

  861. 

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

  863.             .picture_id    = ref->recon_surface,

  864.             .pic_order_cnt = href->pic_order_cnt,

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

  866.                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

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

  868.                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),

  869.         };

  870.     }

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

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

  873.             .picture_id = VA_INVALID_ID,

  874.             .flags      = VA_PICTURE_HEVC_INVALID,

  875.         };

  876.     }

  877. 

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

  879. 

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

  881. 

  882.     switch (pic->type) {

  883.     case PICTURE_TYPE_IDR:

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

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

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

  887.         break;

  888.     case PICTURE_TYPE_I:

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

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

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

  892.         break;

  893.     case PICTURE_TYPE_P:

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

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

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

  897.         break;

  898.     case PICTURE_TYPE_B:

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

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

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

  902.         break;

  903.     default:

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

  905.     }

  906. 

  907.     return 0;

  908. }

  909. 

  910. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  911.                                                VAAPIEncodePicture *pic,

  912.                                                VAAPIEncodeSlice *slice)

  913. {

  914.     VAAPIEncodeH265Context           *priv = avctx->priv_data;

  915.     VAAPIEncodeH265Picture           *hpic = pic->priv_data;

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

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

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

  919.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  920.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  921.     int i;

  922. 

  923.     sh->nal_unit_header = (H265RawNALUnitHeader) {

  924.         .nal_unit_type         = hpic->slice_nal_unit,

  925.         .nuh_layer_id          = 0,

  926.         .nuh_temporal_id_plus1 = 1,

  927.     };

  928. 

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

  930. 

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

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

  933. 

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

  935. 

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

  937.         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;

  938. 

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

  940.         H265RawSTRefPicSet *rps;

  941.         const VAAPIEncodeH265Picture *strp;

  942.         int rps_poc[MAX_DPB_SIZE];

  943.         int rps_used[MAX_DPB_SIZE];

  944.         int i, j, poc, rps_pics;

  945. 

  946.         sh->short_term_ref_pic_set_sps_flag = 0;

  947. 

  948.         rps = &sh->short_term_ref_pic_set;

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

  950. 

  951.         rps_pics = 0;

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

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

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

  955.             rps_used[rps_pics] = 1;

  956.             ++rps_pics;

  957.         }

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

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

  960.                 continue;

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

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

  963.                     break;

  964.             }

  965.             if (j < pic->nb_refs)

  966.                 continue;

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

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

  969.             rps_used[rps_pics] = 0;

  970.             ++rps_pics;

  971.         }

  972. 

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

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

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

  976.                     break;

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

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

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

  980.             }

  981.         }

  982. 

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

  984.                hpic->pic_order_cnt);

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

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

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

  988.         }

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

  990. 

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

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

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

  994.                 break;

  995.         }

  996. 

  997.         rps->num_negative_pics = i;

  998.         poc = hpic->pic_order_cnt;

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

  1000.             rps->delta_poc_s0_minus1[i - 1 - j] = poc - rps_poc[j] - 1;

  1001.             rps->used_by_curr_pic_s0_flag[i - 1 - j] = rps_used[j];

  1002.             poc = rps_poc[j];

  1003.         }

  1004. 

  1005.         rps->num_positive_pics = rps_pics - i;

  1006.         poc = hpic->pic_order_cnt;

  1007.         for (j = i; j < rps_pics; j++) {

  1008.             rps->delta_poc_s1_minus1[j - i] = rps_poc[j] - poc - 1;

  1009.             rps->used_by_curr_pic_s1_flag[j - i] = rps_used[j];

  1010.             poc = rps_poc[j];

  1011.         }

  1012. 

  1013.         sh->num_long_term_sps  = 0;

  1014.         sh->num_long_term_pics = 0;

  1015. 

  1016.         sh->slice_temporal_mvp_enabled_flag =

  1017.             sps->sps_temporal_mvp_enabled_flag;

  1018.         if (sh->slice_temporal_mvp_enabled_flag) {

  1019.             sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;

  1020.             sh->collocated_ref_idx      = 0;

  1021.         }

  1022. 

  1023.         sh->num_ref_idx_active_override_flag = 0;

  1024.         sh->num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1;

  1025.         sh->num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1;

  1026.     }

  1027. 

  1028.     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =

  1029.         sps->sample_adaptive_offset_enabled_flag;

  1030. 

  1031.     if (pic->type == PICTURE_TYPE_B)

  1032.         sh->slice_qp_delta = priv->fixed_qp_b - (pps->init_qp_minus26 + 26);

  1033.     else if (pic->type == PICTURE_TYPE_P)

  1034.         sh->slice_qp_delta = priv->fixed_qp_p - (pps->init_qp_minus26 + 26);

  1035.     else

  1036.         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->init_qp_minus26 + 26);

  1037. 

  1038. 

  1039.     *vslice = (VAEncSliceParameterBufferHEVC) {

  1040.         .slice_segment_address = sh->slice_segment_address,

  1041.         .num_ctu_in_slice      = slice->block_size,

  1042. 

  1043.         .slice_type                 = sh->slice_type,

  1044.         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,

  1045. 

  1046.         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,

  1047.         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,

  1048. 

  1049.         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,

  1050.         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,

  1051. 

  1052.         .max_num_merge_cand = 5 - sh->five_minus_max_num_merge_cand,

  1053. 

  1054.         .slice_qp_delta     = sh->slice_qp_delta,

  1055.         .slice_cb_qp_offset = sh->slice_cb_qp_offset,

  1056.         .slice_cr_qp_offset = sh->slice_cr_qp_offset,

  1057. 

  1058.         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,

  1059.         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,

  1060. 

  1061.         .slice_fields.bits = {

  1062.             .last_slice_of_pic_flag       = slice->index == pic->nb_slices - 1,

  1063.             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,

  1064.             .colour_plane_id              = sh->colour_plane_id,

  1065.             .slice_temporal_mvp_enabled_flag =

  1066.                 sh->slice_temporal_mvp_enabled_flag,

  1067.             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,

  1068.             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,

  1069.             .num_ref_idx_active_override_flag =

  1070.                 sh->num_ref_idx_active_override_flag,

  1071.             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,

  1072.             .cabac_init_flag              = sh->cabac_init_flag,

  1073.             .slice_deblocking_filter_disabled_flag =

  1074.                 sh->slice_deblocking_filter_disabled_flag,

  1075.             .slice_loop_filter_across_slices_enabled_flag =

  1076.                 sh->slice_loop_filter_across_slices_enabled_flag,

  1077.             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,

  1078.         },

  1079.     };

  1080. 

  1081.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {

  1082.         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;

  1083.         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;

  1084.         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;

  1085.         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;

  1086.     }

  1087. 

  1088.     av_assert0(pic->nb_refs <= 2);

  1089.     if (pic->nb_refs >= 1) {

  1090.         // Backward reference for P- or B-frame.

  1091.         av_assert0(pic->type == PICTURE_TYPE_P ||

  1092.                    pic->type == PICTURE_TYPE_B);

  1093.         vslice->ref_pic_list0[0] = vpic->reference_frames[0];

  1094.     }

  1095.     if (pic->nb_refs >= 2) {

  1096.         // Forward reference for B-frame.

  1097.         av_assert0(pic->type == PICTURE_TYPE_B);

  1098.         vslice->ref_pic_list1[0] = vpic->reference_frames[1];

  1099.     }

  1100. 

  1101.     return 0;

  1102. }

  1103. 

  1104. static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)

  1105. {

  1106.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1107.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1108.     int err;

  1109. 

  1110.     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_HEVC, avctx);

  1111.     if (err < 0)

  1112.         return err;

  1113. 

  1114.     if (ctx->va_rc_mode == VA_RC_CQP) {

  1115.         // Note that VAAPI only supports positive QP values - the range is

  1116.         // therefore always bounded below by 1, even in 10-bit mode where

  1117.         // it should go down to -12.

  1118. 

  1119.         priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);

  1120.         if (avctx->i_quant_factor > 0.0)

  1121.             priv->fixed_qp_idr =

  1122.                 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +

  1123.                          avctx->i_quant_offset) + 0.5, 1, 51);

  1124.         else

  1125.             priv->fixed_qp_idr = priv->fixed_qp_p;

  1126.         if (avctx->b_quant_factor > 0.0)

  1127.             priv->fixed_qp_b =

  1128.                 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +

  1129.                          avctx->b_quant_offset) + 0.5, 1, 51);

  1130.         else

  1131.             priv->fixed_qp_b = priv->fixed_qp_p;

  1132. 

  1133.         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "

  1134.                "%d / %d / %d for IDR- / P- / B-frames.\n",

  1135.                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);

  1136. 

  1137.     } else {

  1138.         // These still need to be set for init_qp/slice_qp_delta.

  1139.         priv->fixed_qp_idr = 30;

  1140.         priv->fixed_qp_p   = 30;

  1141.         priv->fixed_qp_b   = 30;

  1142.     }

  1143. 

  1144.     ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);

  1145. 

  1146.     return 0;

  1147. }

  1148. 

  1149. static const VAAPIEncodeProfile vaapi_encode_h265_profiles[] = {

  1150.     { FF_PROFILE_HEVC_MAIN,     8, 3, 1, 1, VAProfileHEVCMain       },

  1151.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 1, VAProfileHEVCMain       },

  1152. #if VA_CHECK_VERSION(0, 37, 0)

  1153.     { FF_PROFILE_HEVC_MAIN_10, 10, 3, 1, 1, VAProfileHEVCMain10     },

  1154.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 1, VAProfileHEVCMain10     },

  1155. #endif

  1156. #if VA_CHECK_VERSION(1, 2, 0)

  1157.     { FF_PROFILE_HEVC_REXT,     8, 3, 1, 0, VAProfileHEVCMain422_10 },

  1158.     { FF_PROFILE_HEVC_REXT,    10, 3, 1, 0, VAProfileHEVCMain422_10 },

  1159. #endif

  1160.     { FF_PROFILE_UNKNOWN }

  1161. };

  1162. 

  1163. static const VAAPIEncodeType vaapi_encode_type_h265 = {

  1164.     .profiles              = vaapi_encode_h265_profiles,

  1165. 

  1166.     .flags                 = FLAG_SLICE_CONTROL |

  1167.                              FLAG_B_PICTURES |

  1168.                              FLAG_B_PICTURE_REFERENCES |

  1169.                              FLAG_NON_IDR_KEY_PICTURES,

  1170. 

  1171.     .default_quality       = 25,

  1172. 

  1173.     .configure             = &vaapi_encode_h265_configure,

  1174. 

  1175.     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),

  1176. 

  1177.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  1178.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  1179. 

  1180.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  1181.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  1182. 

  1183.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  1184.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  1185. 

  1186.     .sequence_header_type  = VAEncPackedHeaderSequence,

  1187.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  1188. 

  1189.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  1190.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  1191. 

  1192.     .write_extra_header    = &vaapi_encode_h265_write_extra_header,

  1193. };

  1194. 

  1195. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  1196. {

  1197.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1198.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1199. 

  1200.     ctx->codec = &vaapi_encode_type_h265;

  1201. 

  1202.     if (avctx->profile == FF_PROFILE_UNKNOWN)

  1203.         avctx->profile = priv->profile;

  1204.     if (avctx->level == FF_LEVEL_UNKNOWN)

  1205.         avctx->level = priv->level;

  1206. 

  1207.     if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {

  1208.         av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "

  1209.                "in 8-bit unsigned integer.\n", avctx->level);

  1210.         return AVERROR(EINVAL);

  1211.     }

  1212. 

  1213.     ctx->desired_packed_headers =

  1214.         VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS.

  1215.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  1216.         VA_ENC_PACKED_HEADER_MISC;      // SEI

  1217. 

  1218.     ctx->surface_width  = FFALIGN(avctx->width,  16);

  1219.     ctx->surface_height = FFALIGN(avctx->height, 16);

  1220. 

  1221.     // CTU size is currently hard-coded to 32.

  1222.     ctx->slice_block_width = ctx->slice_block_height = 32;

  1223. 

  1224.     if (priv->qp > 0)

  1225.         ctx->explicit_qp = priv->qp;

  1226. 

  1227.     return ff_vaapi_encode_init(avctx);

  1228. }

  1229. 

  1230. static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)

  1231. {

  1232.     VAAPIEncodeH265Context *priv = avctx->priv_data;

  1233. 

  1234.     ff_cbs_fragment_free(&priv->current_access_unit);

  1235.     ff_cbs_close(&priv->cbc);

  1236. 

  1237.     return ff_vaapi_encode_close(avctx);

  1238. }

  1239. 

  1240. #define OFFSET(x) offsetof(VAAPIEncodeH265Context, x)

  1241. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  1242. static const AVOption vaapi_encode_h265_options[] = {

  1243.     VAAPI_ENCODE_COMMON_OPTIONS,

  1244.     VAAPI_ENCODE_RC_OPTIONS,

  1245. 

  1246.     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

  1247.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },

  1248. 

  1249.     { "aud", "Include AUD",

  1250.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1251. 

  1252.     { "profile", "Set profile (general_profile_idc)",

  1253.       OFFSET(profile), AV_OPT_TYPE_INT,

  1254.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xff, FLAGS, "profile" },

  1255. 

  1256. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1257.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1258.     { PROFILE("main",               FF_PROFILE_HEVC_MAIN) },

  1259.     { PROFILE("main10",             FF_PROFILE_HEVC_MAIN_10) },

  1260.     { PROFILE("rext",               FF_PROFILE_HEVC_REXT) },

  1261. #undef PROFILE

  1262. 

  1263.     { "tier", "Set tier (general_tier_flag)",

  1264.       OFFSET(tier), AV_OPT_TYPE_INT,

  1265.       { .i64 = 0 }, 0, 1, FLAGS, "tier" },

  1266.     { "main", NULL, 0, AV_OPT_TYPE_CONST,

  1267.       { .i64 = 0 }, 0, 0, FLAGS, "tier" },

  1268.     { "high", NULL, 0, AV_OPT_TYPE_CONST,

  1269.       { .i64 = 1 }, 0, 0, FLAGS, "tier" },

  1270. 

  1271.     { "level", "Set level (general_level_idc)",

  1272.       OFFSET(level), AV_OPT_TYPE_INT,

  1273.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1274. 

  1275. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1276.       { .i64 = value }, 0, 0, FLAGS, "level"

  1277.     { LEVEL("1",    30) },

  1278.     { LEVEL("2",    60) },

  1279.     { LEVEL("2.1",  63) },

  1280.     { LEVEL("3",    90) },

  1281.     { LEVEL("3.1",  93) },

  1282.     { LEVEL("4",   120) },

  1283.     { LEVEL("4.1", 123) },

  1284.     { LEVEL("5",   150) },

  1285.     { LEVEL("5.1", 153) },

  1286.     { LEVEL("5.2", 156) },

  1287.     { LEVEL("6",   180) },

  1288.     { LEVEL("6.1", 183) },

  1289.     { LEVEL("6.2", 186) },

  1290. #undef LEVEL

  1291. 

  1292.     { "sei", "Set SEI to include",

  1293.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1294.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1295.       0, INT_MAX, FLAGS, "sei" },

  1296.     { "hdr",

  1297.       "Include HDR metadata for mastering display colour volume "

  1298.       "and content light level information",

  1299.       0, AV_OPT_TYPE_CONST,

  1300.       { .i64 = SEI_MASTERING_DISPLAY | SEI_CONTENT_LIGHT_LEVEL },

  1301.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1302. 

  1303.     { "tiles", "Tile columns x rows",

  1304.       OFFSET(common.tile_cols), AV_OPT_TYPE_IMAGE_SIZE,

  1305.       { .str = NULL }, 0, 0, FLAGS },

  1306. 

  1307.     { NULL },

  1308. };

  1309. 

  1310. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  1311.     { "b",              "0"   },

  1312.     { "bf",             "2"   },

  1313.     { "g",              "120" },

  1314.     { "i_qfactor",      "1"   },

  1315.     { "i_qoffset",      "0"   },

  1316.     { "b_qfactor",      "6/5" },

  1317.     { "b_qoffset",      "0"   },

  1318.     { "qmin",           "-1"  },

  1319.     { "qmax",           "-1"  },

  1320.     { NULL },

  1321. };

  1322. 

  1323. static const AVClass vaapi_encode_h265_class = {

  1324.     .class_name = "h265_vaapi",

  1325.     .item_name  = av_default_item_name,

  1326.     .option     = vaapi_encode_h265_options,

  1327.     .version    = LIBAVUTIL_VERSION_INT,

  1328. };

  1329. 

  1330. AVCodec ff_hevc_vaapi_encoder = {

  1331.     .name           = "hevc_vaapi",

  1332.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1333.     .type           = AVMEDIA_TYPE_VIDEO,

  1334.     .id             = AV_CODEC_ID_HEVC,

  1335.     .priv_data_size = sizeof(VAAPIEncodeH265Context),

  1336.     .init           = &vaapi_encode_h265_init,

  1337.     .receive_packet = &ff_vaapi_encode_receive_packet,

  1338.     .close          = &vaapi_encode_h265_close,

  1339.     .priv_class     = &vaapi_encode_h265_class,

  1340.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1341.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  1342.     .defaults       = vaapi_encode_h265_defaults,

  1343.     .pix_fmts = (const enum AVPixelFormat[]) {

  1344.         AV_PIX_FMT_VAAPI,

  1345.         AV_PIX_FMT_NONE,

  1346.     },

  1347.     .hw_configs     = ff_vaapi_encode_hw_configs,

  1348.     .wrapper_name   = "vaapi",

  1349. };