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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/opt.h"

  27. 

  28. #include "avcodec.h"

  29. #include "cbs.h"

  30. #include "cbs_h265.h"

  31. #include "hevc.h"

  32. #include "internal.h"

  33. #include "put_bits.h"

  34. #include "vaapi_encode.h"

  35. 

  36. 

  37. typedef struct VAAPIEncodeH265Context {

  38.     unsigned int ctu_width;

  39.     unsigned int ctu_height;

  40. 

  41.     int fixed_qp_idr;

  42.     int fixed_qp_p;

  43.     int fixed_qp_b;

  44. 

  45.     H265RawAUD aud;

  46.     H265RawVPS vps;

  47.     H265RawSPS sps;

  48.     H265RawPPS pps;

  49.     H265RawSlice slice;

  50. 

  51.     int64_t last_idr_frame;

  52.     int pic_order_cnt;

  53. 

  54.     int slice_nal_unit;

  55.     int slice_type;

  56.     int pic_type;

  57. 

  58.     CodedBitstreamContext *cbc;

  59.     CodedBitstreamFragment current_access_unit;

  60.     int aud_needed;

  61. } VAAPIEncodeH265Context;

  62. 

  63. typedef struct VAAPIEncodeH265Options {

  64.     int qp;

  65.     int aud;

  66.     int profile;

  67.     int level;

  68. } VAAPIEncodeH265Options;

  69. 

  70. 

  71. static int vaapi_encode_h265_write_access_unit(AVCodecContext *avctx,

  72.                                                char *data, size_t *data_len,

  73.                                                CodedBitstreamFragment *au)

  74. {

  75.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  76.     VAAPIEncodeH265Context *priv = ctx->priv_data;

  77.     int err;

  78. 

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

  80.     if (err < 0) {

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

  82.         return err;

  83.     }

  84. 

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

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

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

  88.                8 * au->data_size - au->data_bit_padding);

  89.         return AVERROR(ENOSPC);

  90.     }

  91. 

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

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

  94. 

  95.     return 0;

  96. }

  97. 

  98. static int vaapi_encode_h265_add_nal(AVCodecContext *avctx,

  99.                                      CodedBitstreamFragment *au,

  100.                                      void *nal_unit)

  101. {

  102.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  103.     VAAPIEncodeH265Context *priv = ctx->priv_data;

  104.     H265RawNALUnitHeader *header = nal_unit;

  105.     int err;

  106. 

  107.     err = ff_cbs_insert_unit_content(priv->cbc, au, -1,

  108.                                      header->nal_unit_type, nal_unit);

  109.     if (err < 0) {

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

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

  112.         return err;

  113.     }

  114. 

  115.     return 0;

  116. }

  117. 

  118. static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,

  119.                                                    char *data, size_t *data_len)

  120. {

  121.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  122.     VAAPIEncodeH265Context *priv = ctx->priv_data;

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

  124.     int err;

  125. 

  126.     if (priv->aud_needed) {

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

  128.         if (err < 0)

  129.             goto fail;

  130.         priv->aud_needed = 0;

  131.     }

  132. 

  133.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->vps);

  134.     if (err < 0)

  135.         goto fail;

  136. 

  137.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->sps);

  138.     if (err < 0)

  139.         goto fail;

  140. 

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

  142.     if (err < 0)

  143.         goto fail;

  144. 

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

  146. fail:

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

  148.     return err;

  149. }

  150. 

  151. static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,

  152.                                                 VAAPIEncodePicture *pic,

  153.                                                 VAAPIEncodeSlice *slice,

  154.                                                 char *data, size_t *data_len)

  155. {

  156.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  157.     VAAPIEncodeH265Context *priv = ctx->priv_data;

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

  159.     int err;

  160. 

  161.     if (priv->aud_needed) {

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

  163.         if (err < 0)

  164.             goto fail;

  165.         priv->aud_needed = 0;

  166.     }

  167. 

  168.     err = vaapi_encode_h265_add_nal(avctx, au, &priv->slice);

  169.     if (err < 0)

  170.         goto fail;

  171. 

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

  173. fail:

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

  175.     return err;

  176. }

  177. 

  178. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  179. {

  180.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  181.     VAAPIEncodeH265Context           *priv = ctx->priv_data;

  182.     H265RawVPS                        *vps = &priv->vps;

  183.     H265RawSPS                        *sps = &priv->sps;

  184.     H265RawPPS                        *pps = &priv->pps;

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

  186.     VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;

  187.     VAEncPictureParameterBufferHEVC  *vpic = ctx->codec_picture_params;

  188.     int i;

  189. 

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

  191.            sizeof(priv->current_access_unit));

  192. 

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

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

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

  196. 

  197. 

  198.     // VPS

  199. 

  200.     vps->nal_unit_header = (H265RawNALUnitHeader) {

  201.         .nal_unit_type         = HEVC_NAL_VPS,

  202.         .nuh_layer_id          = 0,

  203.         .nuh_temporal_id_plus1 = 1,

  204.     };

  205. 

  206.     vps->vps_video_parameter_set_id = 0;

  207. 

  208.     vps->vps_base_layer_internal_flag  = 1;

  209.     vps->vps_base_layer_available_flag = 1;

  210.     vps->vps_max_layers_minus1         = 0;

  211.     vps->vps_max_sub_layers_minus1     = 0;

  212.     vps->vps_temporal_id_nesting_flag  = 1;

  213. 

  214.     vps->profile_tier_level = (H265RawProfileTierLevel) {

  215.         .general_profile_space = 0,

  216.         .general_profile_idc   = avctx->profile,

  217.         .general_tier_flag     = 0,

  218. 

  219.         .general_progressive_source_flag    = 1,

  220.         .general_interlaced_source_flag     = 0,

  221.         .general_non_packed_constraint_flag = 1,

  222.         .general_frame_only_constraint_flag = 1,

  223. 

  224.         .general_level_idc     = avctx->level,

  225.     };

  226.     vps->profile_tier_level.general_profile_compatibility_flag[avctx->profile & 31] = 1;

  227. 

  228.     vps->vps_sub_layer_ordering_info_present_flag = 0;

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

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

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

  232. 

  233.     vps->vps_max_layer_id             = 0;

  234.     vps->vps_num_layer_sets_minus1    = 0;

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

  236. 

  237.     vps->vps_timing_info_present_flag = 1;

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

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

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

  241.         vps->vps_poc_proportional_to_timing_flag = 1;

  242.         vps->vps_num_ticks_poc_diff_one_minus1   = 0;

  243.     } else {

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

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

  246.         vps->vps_poc_proportional_to_timing_flag = 0;

  247.     }

  248.     vps->vps_num_hrd_parameters = 0;

  249. 

  250. 

  251.     // SPS

  252. 

  253.     sps->nal_unit_header = (H265RawNALUnitHeader) {

  254.         .nal_unit_type         = HEVC_NAL_SPS,

  255.         .nuh_layer_id          = 0,

  256.         .nuh_temporal_id_plus1 = 1,

  257.     };

  258. 

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

  260. 

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

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

  263. 

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

  265. 

  266.     sps->sps_seq_parameter_set_id = 0;

  267. 

  268.     sps->chroma_format_idc          = 1; // YUV 4:2:0.

  269.     sps->separate_colour_plane_flag = 0;

  270. 

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

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

  273. 

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

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

  276.         sps->conformance_window_flag = 1;

  277.         sps->conf_win_left_offset   = 0;

  278.         sps->conf_win_right_offset  =

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

  280.         sps->conf_win_top_offset    = 0;

  281.         sps->conf_win_bottom_offset =

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

  283.     } else {

  284.         sps->conformance_window_flag = 0;

  285.     }

  286. 

  287.     sps->bit_depth_luma_minus8 =

  288.         avctx->profile == FF_PROFILE_HEVC_MAIN_10 ? 2 : 0;

  289.     sps->bit_depth_chroma_minus8 = sps->bit_depth_luma_minus8;

  290. 

  291.     sps->log2_max_pic_order_cnt_lsb_minus4 = 8;

  292. 

  293.     sps->sps_sub_layer_ordering_info_present_flag =

  294.         vps->vps_sub_layer_ordering_info_present_flag;

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

  296.         sps->sps_max_dec_pic_buffering_minus1[i] =

  297.             vps->vps_max_dec_pic_buffering_minus1[i];

  298.         sps->sps_max_num_reorder_pics[i] =

  299.             vps->vps_max_num_reorder_pics[i];

  300.         sps->sps_max_latency_increase_plus1[i] =

  301.             vps->vps_max_latency_increase_plus1[i];

  302.     }

  303. 

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

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

  306.     // driver.

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

  308.     sps->log2_min_luma_coding_block_size_minus3   = 0;

  309.     sps->log2_diff_max_min_luma_coding_block_size = 2;

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

  311.     sps->log2_min_luma_transform_block_size_minus2   = 0;

  312.     sps->log2_diff_max_min_luma_transform_block_size = 3;

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

  314.     sps->max_transform_hierarchy_depth_inter = 3;

  315.     sps->max_transform_hierarchy_depth_intra = 3;

  316.     // AMP works.

  317.     sps->amp_enabled_flag = 1;

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

  319.     sps->sample_adaptive_offset_enabled_flag = 0;

  320.     sps->sps_temporal_mvp_enabled_flag       = 0;

  321. 

  322.     sps->pcm_enabled_flag = 0;

  323. 

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

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

  326.     // don't bother.

  327.     sps->num_short_term_ref_pic_sets     = 0;

  328.     sps->long_term_ref_pics_present_flag = 0;

  329. 

  330.     sps->vui_parameters_present_flag = 1;

  331. 

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

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

  334.         static const AVRational sar_idc[] = {

  335.             {   0,  0 },

  336.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  337.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  338.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  339.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  340.         };

  341.         int i;

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

  343.             if (avctx->sample_aspect_ratio.num == sar_idc[i].num &&

  344.                 avctx->sample_aspect_ratio.den == sar_idc[i].den) {

  345.                 vui->aspect_ratio_idc = i;

  346.                 break;

  347.             }

  348.         }

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

  350.             vui->aspect_ratio_idc = 255;

  351.             vui->sar_width  = avctx->sample_aspect_ratio.num;

  352.             vui->sar_height = avctx->sample_aspect_ratio.den;

  353.         }

  354.         vui->aspect_ratio_info_present_flag = 1;

  355.     }

  356. 

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

  358.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  359.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  360.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  361.         vui->video_signal_type_present_flag = 1;

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

  363.         vui->video_full_range_flag =

  364.             avctx->color_range == AVCOL_RANGE_JPEG;

  365. 

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

  367.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  368.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  369.             vui->colour_description_present_flag = 1;

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

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

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

  373.         }

  374.     } else {

  375.         vui->video_format             = 5;

  376.         vui->video_full_range_flag    = 0;

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

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

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

  380.     }

  381. 

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

  383.         vui->chroma_loc_info_present_flag = 1;

  384.         vui->chroma_sample_loc_type_top_field    =

  385.         vui->chroma_sample_loc_type_bottom_field =

  386.             avctx->chroma_sample_location - 1;

  387.     }

  388. 

  389.     vui->vui_timing_info_present_flag        = 1;

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

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

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

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

  394.     vui->vui_hrd_parameters_present_flag     = 0;

  395. 

  396.     vui->bitstream_restriction_flag    = 1;

  397.     vui->motion_vectors_over_pic_boundaries_flag = 1;

  398.     vui->restricted_ref_pic_lists_flag = 1;

  399.     vui->max_bytes_per_pic_denom       = 0;

  400.     vui->max_bits_per_min_cu_denom     = 0;

  401.     vui->log2_max_mv_length_horizontal = 15;

  402.     vui->log2_max_mv_length_vertical   = 15;

  403. 

  404. 

  405.     // PPS

  406. 

  407.     pps->nal_unit_header = (H265RawNALUnitHeader) {

  408.         .nal_unit_type         = HEVC_NAL_PPS,

  409.         .nuh_layer_id          = 0,

  410.         .nuh_temporal_id_plus1 = 1,

  411.     };

  412. 

  413.     pps->pps_pic_parameter_set_id = 0;

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

  415. 

  416.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  417.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  418. 

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

  420. 

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

  422.     pps->diff_cu_qp_delta_depth   = 0;

  423. 

  424.     pps->pps_loop_filter_across_slices_enabled_flag = 1;

  425. 

  426. 

  427.     // Fill VAAPI parameter buffers.

  428. 

  429.     *vseq = (VAEncSequenceParameterBufferHEVC) {

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

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

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

  433. 

  434.         .intra_period     = avctx->gop_size,

  435.         .intra_idr_period = avctx->gop_size,

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

  437.         .bits_per_second   = avctx->bit_rate,

  438. 

  439.         .pic_width_in_luma_samples  = sps->pic_width_in_luma_samples,

  440.         .pic_height_in_luma_samples = sps->pic_height_in_luma_samples,

  441. 

  442.         .seq_fields.bits = {

  443.             .chroma_format_idc             = sps->chroma_format_idc,

  444.             .separate_colour_plane_flag    = sps->separate_colour_plane_flag,

  445.             .bit_depth_luma_minus8         = sps->bit_depth_luma_minus8,

  446.             .bit_depth_chroma_minus8       = sps->bit_depth_chroma_minus8,

  447.             .scaling_list_enabled_flag     = sps->scaling_list_enabled_flag,

  448.             .strong_intra_smoothing_enabled_flag =

  449.                 sps->strong_intra_smoothing_enabled_flag,

  450.             .amp_enabled_flag              = sps->amp_enabled_flag,

  451.             .sample_adaptive_offset_enabled_flag =

  452.                 sps->sample_adaptive_offset_enabled_flag,

  453.             .pcm_enabled_flag              = sps->pcm_enabled_flag,

  454.             .pcm_loop_filter_disabled_flag = sps->pcm_loop_filter_disabled_flag,

  455.             .sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag,

  456.         },

  457. 

  458.         .log2_min_luma_coding_block_size_minus3 =

  459.             sps->log2_min_luma_coding_block_size_minus3,

  460.         .log2_diff_max_min_luma_coding_block_size =

  461.             sps->log2_diff_max_min_luma_coding_block_size,

  462.         .log2_min_transform_block_size_minus2 =

  463.             sps->log2_min_luma_transform_block_size_minus2,

  464.         .log2_diff_max_min_transform_block_size =

  465.             sps->log2_diff_max_min_luma_transform_block_size,

  466.         .max_transform_hierarchy_depth_inter =

  467.             sps->max_transform_hierarchy_depth_inter,

  468.         .max_transform_hierarchy_depth_intra =

  469.             sps->max_transform_hierarchy_depth_intra,

  470. 

  471.         .pcm_sample_bit_depth_luma_minus1 =

  472.             sps->pcm_sample_bit_depth_luma_minus1,

  473.         .pcm_sample_bit_depth_chroma_minus1 =

  474.             sps->pcm_sample_bit_depth_chroma_minus1,

  475.         .log2_min_pcm_luma_coding_block_size_minus3 =

  476.             sps->log2_min_pcm_luma_coding_block_size_minus3,

  477.         .log2_max_pcm_luma_coding_block_size_minus3 =

  478.             sps->log2_min_pcm_luma_coding_block_size_minus3 +

  479.             sps->log2_diff_max_min_pcm_luma_coding_block_size,

  480. 

  481.         .vui_parameters_present_flag = 0,

  482.     };

  483. 

  484.     *vpic = (VAEncPictureParameterBufferHEVC) {

  485.         .decoded_curr_pic = {

  486.             .picture_id = VA_INVALID_ID,

  487.             .flags      = VA_PICTURE_HEVC_INVALID,

  488.         },

  489. 

  490.         .coded_buf = VA_INVALID_ID,

  491. 

  492.         .collocated_ref_pic_index = 0xff,

  493. 

  494.         .last_picture = 0,

  495. 

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

  497.         .diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth,

  498.         .pps_cb_qp_offset       = pps->pps_cb_qp_offset,

  499.         .pps_cr_qp_offset       = pps->pps_cr_qp_offset,

  500. 

  501.         .num_tile_columns_minus1 = pps->num_tile_columns_minus1,

  502.         .num_tile_rows_minus1    = pps->num_tile_rows_minus1,

  503. 

  504.         .log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level_minus2,

  505.         .ctu_max_bitsize_allowed          = 0,

  506. 

  507.         .num_ref_idx_l0_default_active_minus1 =

  508.             pps->num_ref_idx_l0_default_active_minus1,

  509.         .num_ref_idx_l1_default_active_minus1 =

  510.             pps->num_ref_idx_l1_default_active_minus1,

  511. 

  512.         .slice_pic_parameter_set_id = pps->pps_pic_parameter_set_id,

  513. 

  514.         .pic_fields.bits = {

  515.             .sign_data_hiding_enabled_flag  = pps->sign_data_hiding_enabled_flag,

  516.             .constrained_intra_pred_flag    = pps->constrained_intra_pred_flag,

  517.             .transform_skip_enabled_flag    = pps->transform_skip_enabled_flag,

  518.             .cu_qp_delta_enabled_flag       = pps->cu_qp_delta_enabled_flag,

  519.             .weighted_pred_flag             = pps->weighted_pred_flag,

  520.             .weighted_bipred_flag           = pps->weighted_bipred_flag,

  521.             .transquant_bypass_enabled_flag = pps->transquant_bypass_enabled_flag,

  522.             .tiles_enabled_flag             = pps->tiles_enabled_flag,

  523.             .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,

  524.             .loop_filter_across_tiles_enabled_flag =

  525.                 pps->loop_filter_across_tiles_enabled_flag,

  526.             .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |

  527.                                                pps->pps_scaling_list_data_present_flag),

  528.             .screen_content_flag            = 0,

  529.             .enable_gpu_weighted_prediction = 0,

  530.             .no_output_of_prior_pics_flag   = 0,

  531.         },

  532.     };

  533. 

  534.     return 0;

  535. }

  536. 

  537. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  538.                                                  VAAPIEncodePicture *pic)

  539. {

  540.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  541.     VAAPIEncodeH265Context          *priv = ctx->priv_data;

  542.     VAAPIEncodeH265Options           *opt = ctx->codec_options;

  543.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  544.     int i;

  545. 

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

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

  548. 

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

  550. 

  551.         priv->slice_nal_unit = HEVC_NAL_IDR_W_RADL;

  552.         priv->slice_type     = HEVC_SLICE_I;

  553.         priv->pic_type       = 0;

  554.     } else {

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

  556. 

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

  558.             priv->slice_nal_unit = HEVC_NAL_CRA_NUT;

  559.             priv->slice_type     = HEVC_SLICE_I;

  560.             priv->pic_type       = 0;

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

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

  563.             priv->slice_nal_unit = HEVC_NAL_TRAIL_R;

  564.             priv->slice_type     = HEVC_SLICE_P;

  565.             priv->pic_type       = 1;

  566.         } else {

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

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

  569.                 priv->slice_nal_unit = HEVC_NAL_RASL_N;

  570.             else

  571.                 priv->slice_nal_unit = HEVC_NAL_TRAIL_N;

  572.             priv->slice_type = HEVC_SLICE_B;

  573.             priv->pic_type   = 2;

  574.         }

  575.     }

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

  577. 

  578.     if (opt->aud) {

  579.         priv->aud_needed = 1;

  580.         priv->aud.nal_unit_header = (H265RawNALUnitHeader) {

  581.             .nal_unit_type         = HEVC_NAL_AUD,

  582.             .nuh_layer_id          = 0,

  583.             .nuh_temporal_id_plus1 = 1,

  584.         };

  585.         priv->aud.pic_type = priv->pic_type;

  586.     } else {

  587.         priv->aud_needed = 0;

  588.     }

  589. 

  590.     vpic->decoded_curr_pic = (VAPictureHEVC) {

  591.         .picture_id    = pic->recon_surface,

  592.         .pic_order_cnt = priv->pic_order_cnt,

  593.         .flags         = 0,

  594.     };

  595. 

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

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

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

  599. 

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

  601.             .picture_id    = ref->recon_surface,

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

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

  604.                       VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

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

  606.                       VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0),

  607.         };

  608.     }

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

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

  611.             .picture_id = VA_INVALID_ID,

  612.             .flags      = VA_PICTURE_HEVC_INVALID,

  613.         };

  614.     }

  615. 

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

  617. 

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

  619. 

  620.     switch (pic->type) {

  621.     case PICTURE_TYPE_IDR:

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

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

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

  625.         break;

  626.     case PICTURE_TYPE_I:

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

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

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

  630.         break;

  631.     case PICTURE_TYPE_P:

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

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

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

  635.         break;

  636.     case PICTURE_TYPE_B:

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

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

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

  640.         break;

  641.     default:

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

  643.     }

  644. 

  645.     pic->nb_slices = 1;

  646. 

  647.     return 0;

  648. }

  649. 

  650. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  651.                                                VAAPIEncodePicture *pic,

  652.                                                VAAPIEncodeSlice *slice)

  653. {

  654.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  655.     VAAPIEncodeH265Context           *priv = ctx->priv_data;

  656.     const H265RawSPS                  *sps = &priv->sps;

  657.     const H265RawPPS                  *pps = &priv->pps;

  658.     H265RawSliceHeader                 *sh = &priv->slice.header;

  659.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  660.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  661.     int i;

  662. 

  663.     sh->nal_unit_header = (H265RawNALUnitHeader) {

  664.         .nal_unit_type         = priv->slice_nal_unit,

  665.         .nuh_layer_id          = 0,

  666.         .nuh_temporal_id_plus1 = 1,

  667.     };

  668. 

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

  670. 

  671.     // Currently we only support one slice per frame.

  672.     sh->first_slice_segment_in_pic_flag = 1;

  673.     sh->slice_segment_address           = 0;

  674. 

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

  676. 

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

  678.         (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1;

  679. 

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

  681.         H265RawSTRefPicSet *rps;

  682.         VAAPIEncodePicture *st;

  683.         int used;

  684. 

  685.         sh->short_term_ref_pic_set_sps_flag = 0;

  686. 

  687.         rps = &sh->short_term_ref_pic_set;

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

  689. 

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

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

  692.                 // Not yet in DPB.

  693.                 continue;

  694.             }

  695.             used = 0;

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

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

  698.                     used = 1;

  699.             }

  700.             if (!used) {

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

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

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

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

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

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

  707.                 VAAPIEncodePicture *rp;

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

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

  710.                         continue;

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

  712.                         continue;

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

  714.                         break;

  715.                 }

  716.                 if (!rp)

  717.                     continue;

  718.             }

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

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

  721.             // the current frame directly).

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

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

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

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

  726.                 ++rps->num_negative_pics;

  727.             } else {

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

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

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

  731.                 ++rps->num_positive_pics;

  732.             }

  733.         }

  734. 

  735.         sh->num_long_term_sps  = 0;

  736.         sh->num_long_term_pics = 0;

  737. 

  738.         sh->slice_temporal_mvp_enabled_flag =

  739.             sps->sps_temporal_mvp_enabled_flag;

  740.         if (sh->slice_temporal_mvp_enabled_flag) {

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

  742.             sh->collocated_ref_idx      = 0;

  743.         }

  744. 

  745.         sh->num_ref_idx_active_override_flag = 0;

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

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

  748.     }

  749. 

  750.     sh->slice_sao_luma_flag = sh->slice_sao_chroma_flag =

  751.         sps->sample_adaptive_offset_enabled_flag;

  752. 

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

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

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

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

  757.     else

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

  759. 

  760. 

  761.     *vslice = (VAEncSliceParameterBufferHEVC) {

  762.         .slice_segment_address = sh->slice_segment_address,

  763.         .num_ctu_in_slice      = priv->ctu_width * priv->ctu_height,

  764. 

  765.         .slice_type                 = sh->slice_type,

  766.         .slice_pic_parameter_set_id = sh->slice_pic_parameter_set_id,

  767. 

  768.         .num_ref_idx_l0_active_minus1 = sh->num_ref_idx_l0_active_minus1,

  769.         .num_ref_idx_l1_active_minus1 = sh->num_ref_idx_l1_active_minus1,

  770.         .ref_pic_list0[0]             = vpic->reference_frames[0],

  771.         .ref_pic_list1[0]             = vpic->reference_frames[1],

  772. 

  773.         .luma_log2_weight_denom         = sh->luma_log2_weight_denom,

  774.         .delta_chroma_log2_weight_denom = sh->delta_chroma_log2_weight_denom,

  775. 

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

  777. 

  778.         .slice_qp_delta     = sh->slice_qp_delta,

  779.         .slice_cb_qp_offset = sh->slice_cb_qp_offset,

  780.         .slice_cr_qp_offset = sh->slice_cr_qp_offset,

  781. 

  782.         .slice_beta_offset_div2 = sh->slice_beta_offset_div2,

  783.         .slice_tc_offset_div2   = sh->slice_tc_offset_div2,

  784. 

  785.         .slice_fields.bits = {

  786.             .last_slice_of_pic_flag       = 1,

  787.             .dependent_slice_segment_flag = sh->dependent_slice_segment_flag,

  788.             .colour_plane_id              = sh->colour_plane_id,

  789.             .slice_temporal_mvp_enabled_flag =

  790.                 sh->slice_temporal_mvp_enabled_flag,

  791.             .slice_sao_luma_flag          = sh->slice_sao_luma_flag,

  792.             .slice_sao_chroma_flag        = sh->slice_sao_chroma_flag,

  793.             .num_ref_idx_active_override_flag =

  794.                 sh->num_ref_idx_active_override_flag,

  795.             .mvd_l1_zero_flag             = sh->mvd_l1_zero_flag,

  796.             .cabac_init_flag              = sh->cabac_init_flag,

  797.             .slice_deblocking_filter_disabled_flag =

  798.                 sh->slice_deblocking_filter_disabled_flag,

  799.             .slice_loop_filter_across_slices_enabled_flag =

  800.                 sh->slice_loop_filter_across_slices_enabled_flag,

  801.             .collocated_from_l0_flag      = sh->collocated_from_l0_flag,

  802.         },

  803.     };

  804. 

  805. 

  806.     return 0;

  807. }

  808. 

  809. static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)

  810. {

  811.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  812.     VAAPIEncodeH265Context *priv = ctx->priv_data;

  813.     VAAPIEncodeH265Options  *opt = ctx->codec_options;

  814.     int err;

  815. 

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

  817.     if (err < 0)

  818.         return err;

  819. 

  820.     priv->ctu_width     = FFALIGN(ctx->surface_width,  32) / 32;

  821.     priv->ctu_height    = FFALIGN(ctx->surface_height, 32) / 32;

  822. 

  823.     av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Surface %ux%u -> CTU %ux%u.\n",

  824.            avctx->width, avctx->height, ctx->surface_width,

  825.            ctx->surface_height, priv->ctu_width, priv->ctu_height);

  826. 

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

  828.         priv->fixed_qp_p = opt->qp;

  829.         if (avctx->i_quant_factor > 0.0)

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

  831.                                         avctx->i_quant_offset) + 0.5);

  832.         else

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

  834.         if (avctx->b_quant_factor > 0.0)

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

  836.                                       avctx->b_quant_offset) + 0.5);

  837.         else

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

  839. 

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

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

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

  843. 

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

  845.                ctx->va_rc_mode == VA_RC_VBR) {

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

  847.         priv->fixed_qp_idr = 30;

  848.         priv->fixed_qp_p   = 30;

  849.         priv->fixed_qp_b   = 30;

  850. 

  851.         av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n",

  852.                ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable",

  853.                avctx->bit_rate);

  854. 

  855.     } else {

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

  857.     }

  858. 

  859.     return 0;

  860. }

  861. 

  862. static const VAAPIEncodeType vaapi_encode_type_h265 = {

  863.     .priv_data_size        = sizeof(VAAPIEncodeH265Context),

  864. 

  865.     .configure             = &vaapi_encode_h265_configure,

  866. 

  867.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  868.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  869. 

  870.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  871.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  872. 

  873.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  874.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  875. 

  876.     .sequence_header_type  = VAEncPackedHeaderSequence,

  877.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  878. 

  879.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  880.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  881. };

  882. 

  883. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  884. {

  885.     VAAPIEncodeContext     *ctx = avctx->priv_data;

  886.     VAAPIEncodeH265Options *opt =

  887.         (VAAPIEncodeH265Options*)ctx->codec_options_data;

  888. 

  889.     ctx->codec = &vaapi_encode_type_h265;

  890. 

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

  892.         avctx->profile = opt->profile;

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

  894.         avctx->level = opt->level;

  895. 

  896.     switch (avctx->profile) {

  897.     case FF_PROFILE_HEVC_MAIN:

  898.     case FF_PROFILE_UNKNOWN:

  899.         ctx->va_profile = VAProfileHEVCMain;

  900.         ctx->va_rt_format = VA_RT_FORMAT_YUV420;

  901.         break;

  902.     case FF_PROFILE_HEVC_MAIN_10:

  903. #ifdef VA_RT_FORMAT_YUV420_10BPP

  904.         ctx->va_profile = VAProfileHEVCMain10;

  905.         ctx->va_rt_format = VA_RT_FORMAT_YUV420_10BPP;

  906.         break;

  907. #else

  908.         av_log(avctx, AV_LOG_ERROR, "10-bit encoding is not "

  909.                "supported with this VAAPI version.\n");

  910.         return AVERROR(ENOSYS);

  911. #endif

  912.     default:

  913.         av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n",

  914.                avctx->profile);

  915.         return AVERROR(EINVAL);

  916.     }

  917.     ctx->va_entrypoint = VAEntrypointEncSlice;

  918. 

  919.     if (avctx->bit_rate > 0) {

  920.         if (avctx->rc_max_rate == avctx->bit_rate)

  921.             ctx->va_rc_mode = VA_RC_CBR;

  922.         else

  923.             ctx->va_rc_mode = VA_RC_VBR;

  924.     } else

  925.         ctx->va_rc_mode = VA_RC_CQP;

  926. 

  927.     ctx->va_packed_headers =

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

  929.         VA_ENC_PACKED_HEADER_SLICE;     // Slice headers.

  930. 

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

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

  933. 

  934.     return ff_vaapi_encode_init(avctx);

  935. }

  936. 

  937. static av_cold int vaapi_encode_h265_close(AVCodecContext *avctx)

  938. {

  939.     VAAPIEncodeContext *ctx = avctx->priv_data;

  940.     VAAPIEncodeH265Context *priv = ctx->priv_data;

  941. 

  942.     if (priv)

  943.         ff_cbs_close(&priv->cbc);

  944. 

  945.     return ff_vaapi_encode_close(avctx);

  946. }

  947. 

  948. #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \

  949.                    offsetof(VAAPIEncodeH265Options, x))

  950. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  951. static const AVOption vaapi_encode_h265_options[] = {

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

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

  954. 

  955.     { "aud", "Include AUD",

  956.       OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },

  957. 

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

  959.       OFFSET(profile), AV_OPT_TYPE_INT,

  960.       { .i64 = FF_PROFILE_HEVC_MAIN }, 0x00, 0xff, FLAGS, "profile" },

  961. 

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

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

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

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

  966. #undef PROFILE

  967. 

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

  969.       OFFSET(level), AV_OPT_TYPE_INT,

  970.       { .i64 = 153 }, 0x00, 0xff, FLAGS, "level" },

  971. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  987. #undef LEVEL

  988. 

  989.     { NULL },

  990. };

  991. 

  992. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  993.     { "b",              "0"   },

  994.     { "bf",             "2"   },

  995.     { "g",              "120" },

  996.     { "i_qfactor",      "1"   },

  997.     { "i_qoffset",      "0"   },

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

  999.     { "b_qoffset",      "0"   },

  1000.     { NULL },

  1001. };

  1002. 

  1003. static const AVClass vaapi_encode_h265_class = {

  1004.     .class_name = "h265_vaapi",

  1005.     .item_name  = av_default_item_name,

  1006.     .option     = vaapi_encode_h265_options,

  1007.     .version    = LIBAVUTIL_VERSION_INT,

  1008. };

  1009. 

  1010. AVCodec ff_hevc_vaapi_encoder = {

  1011.     .name           = "hevc_vaapi",

  1012.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1013.     .type           = AVMEDIA_TYPE_VIDEO,

  1014.     .id             = AV_CODEC_ID_HEVC,

  1015.     .priv_data_size = (sizeof(VAAPIEncodeContext) +

  1016.                        sizeof(VAAPIEncodeH265Options)),

  1017.     .init           = &vaapi_encode_h265_init,

  1018.     .encode2        = &ff_vaapi_encode2,

  1019.     .close          = &vaapi_encode_h265_close,

  1020.     .priv_class     = &vaapi_encode_h265_class,

  1021.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1022.     .defaults       = vaapi_encode_h265_defaults,

  1023.     .pix_fmts = (const enum AVPixelFormat[]) {

  1024.         AV_PIX_FMT_VAAPI,

  1025.         AV_PIX_FMT_NONE,

  1026.     },

  1027.     .wrapper_name   = "vaapi",

  1028. };