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FFmpeg/libavcodec/vaapi_encode_h264.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_h264.h>

  23. 

  24. #include "libavutil/avassert.h"

  25. #include "libavutil/common.h"

  26. #include "libavutil/internal.h"

  27. #include "libavutil/opt.h"

  28. 

  29. #include "avcodec.h"

  30. #include "cbs.h"

  31. #include "cbs_h264.h"

  32. #include "h264.h"

  33. #include "h264_sei.h"

  34. #include "internal.h"

  35. #include "vaapi_encode.h"

  36. 

  37. enum {

  38.     SEI_TIMING         = 0x01,

  39.     SEI_IDENTIFIER     = 0x02,

  40.     SEI_RECOVERY_POINT = 0x04,

  41. };

  42. 

  43. // Random (version 4) ISO 11578 UUID.

  44. static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {

  45.     0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,

  46.     0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,

  47. };

  48. 

  49. typedef struct VAAPIEncodeH264Context {

  50.     int mb_width;

  51.     int mb_height;

  52. 

  53.     int fixed_qp_idr;

  54.     int fixed_qp_p;

  55.     int fixed_qp_b;

  56. 

  57.     H264RawAUD aud;

  58.     H264RawSPS sps;

  59.     H264RawPPS pps;

  60.     H264RawSEI sei;

  61.     H264RawSlice slice;

  62. 

  63.     H264RawSEIBufferingPeriod buffering_period;

  64.     H264RawSEIPicTiming pic_timing;

  65.     H264RawSEIRecoveryPoint recovery_point;

  66.     H264RawSEIUserDataUnregistered identifier;

  67.     char *identifier_string;

  68. 

  69.     int frame_num;

  70.     int pic_order_cnt;

  71.     int next_frame_num;

  72.     int64_t last_idr_frame;

  73.     int64_t idr_pic_count;

  74. 

  75.     int primary_pic_type;

  76.     int slice_type;

  77. 

  78.     int cpb_delay;

  79.     int dpb_delay;

  80. 

  81.     CodedBitstreamContext *cbc;

  82.     CodedBitstreamFragment current_access_unit;

  83.     int aud_needed;

  84.     int sei_needed;

  85. } VAAPIEncodeH264Context;

  86. 

  87. typedef struct VAAPIEncodeH264Options {

  88.     int qp;

  89.     int quality;

  90.     int low_power;

  91.     // Entropy encoder type.

  92.     int coder;

  93.     int aud;

  94.     int sei;

  95. } VAAPIEncodeH264Options;

  96. 

  97. 

  98. static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,

  99.                                                char *data, size_t *data_len,

  100.                                                CodedBitstreamFragment *au)

  101. {

  102.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  103.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  104.     int err;

  105. 

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

  107.     if (err < 0) {

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

  109.         return err;

  110.     }

  111. 

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

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

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

  115.                8 * au->data_size - au->data_bit_padding);

  116.         return AVERROR(ENOSPC);

  117.     }

  118. 

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

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

  121. 

  122.     return 0;

  123. }

  124. 

  125. static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,

  126.                                      CodedBitstreamFragment *au,

  127.                                      void *nal_unit)

  128. {

  129.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  130.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  131.     H264RawNALUnitHeader *header = nal_unit;

  132.     int err;

  133. 

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

  135.                                      header->nal_unit_type, nal_unit);

  136.     if (err < 0) {

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

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

  139.         return err;

  140.     }

  141. 

  142.     return 0;

  143. }

  144. 

  145. static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,

  146.                                                    char *data, size_t *data_len)

  147. {

  148.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  149.     VAAPIEncodeH264Context *priv = ctx->priv_data;

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

  151.     int err;

  152. 

  153.     if (priv->aud_needed) {

  154.         err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);

  155.         if (err < 0)

  156.             goto fail;

  157.         priv->aud_needed = 0;

  158.     }

  159. 

  160.     err = vaapi_encode_h264_add_nal(avctx, au, &priv->sps);

  161.     if (err < 0)

  162.         goto fail;

  163. 

  164.     err = vaapi_encode_h264_add_nal(avctx, au, &priv->pps);

  165.     if (err < 0)

  166.         goto fail;

  167. 

  168.     err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);

  169. fail:

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

  171.     return err;

  172. }

  173. 

  174. static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,

  175.                                                 VAAPIEncodePicture *pic,

  176.                                                 VAAPIEncodeSlice *slice,

  177.                                                 char *data, size_t *data_len)

  178. {

  179.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  180.     VAAPIEncodeH264Context *priv = ctx->priv_data;

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

  182.     int err;

  183. 

  184.     if (priv->aud_needed) {

  185.         err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);

  186.         if (err < 0)

  187.             goto fail;

  188.         priv->aud_needed = 0;

  189.     }

  190. 

  191.     err = vaapi_encode_h264_add_nal(avctx, au, &priv->slice);

  192.     if (err < 0)

  193.         goto fail;

  194. 

  195.     err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);

  196. fail:

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

  198.     return err;

  199. }

  200. 

  201. static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,

  202.                                                 VAAPIEncodePicture *pic,

  203.                                                 int index, int *type,

  204.                                                 char *data, size_t *data_len)

  205. {

  206.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  207.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  208.     VAAPIEncodeH264Options  *opt = ctx->codec_options;

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

  210.     int err, i;

  211. 

  212.     if (priv->sei_needed) {

  213.         if (priv->aud_needed) {

  214.             err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);

  215.             if (err < 0)

  216.                 goto fail;

  217.             priv->aud_needed = 0;

  218.         }

  219. 

  220.         memset(&priv->sei, 0, sizeof(priv->sei));

  221.         priv->sei.nal_unit_header.nal_unit_type = H264_NAL_SEI;

  222. 

  223.         i = 0;

  224.         if (pic->encode_order == 0 && opt->sei & SEI_IDENTIFIER) {

  225.             priv->sei.payload[i].payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED;

  226.             priv->sei.payload[i].payload.user_data_unregistered = priv->identifier;

  227.             ++i;

  228.         }

  229.         if (opt->sei & SEI_TIMING) {

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

  231.                 priv->sei.payload[i].payload_type = H264_SEI_TYPE_BUFFERING_PERIOD;

  232.                 priv->sei.payload[i].payload.buffering_period = priv->buffering_period;

  233.                 ++i;

  234.             }

  235.             priv->sei.payload[i].payload_type = H264_SEI_TYPE_PIC_TIMING;

  236.             priv->sei.payload[i].payload.pic_timing = priv->pic_timing;

  237.             ++i;

  238.         }

  239.         if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {

  240.             priv->sei.payload[i].payload_type = H264_SEI_TYPE_RECOVERY_POINT;

  241.             priv->sei.payload[i].payload.recovery_point = priv->recovery_point;

  242.             ++i;

  243.         }

  244. 

  245.         priv->sei.payload_count = i;

  246.         av_assert0(priv->sei.payload_count > 0);

  247. 

  248.         err = vaapi_encode_h264_add_nal(avctx, au, &priv->sei);

  249.         if (err < 0)

  250.             goto fail;

  251.         priv->sei_needed = 0;

  252. 

  253.         err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);

  254.         if (err < 0)

  255.             goto fail;

  256. 

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

  258. 

  259.         *type = VAEncPackedHeaderRawData;

  260.         return 0;

  261.     } else {

  262.         return AVERROR_EOF;

  263.     }

  264. 

  265. fail:

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

  267.     return err;

  268. }

  269. 

  270. static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)

  271. {

  272.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  273.     VAAPIEncodeH264Context           *priv = ctx->priv_data;

  274.     VAAPIEncodeH264Options            *opt = ctx->codec_options;

  275.     H264RawSPS                        *sps = &priv->sps;

  276.     H264RawPPS                        *pps = &priv->pps;

  277.     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;

  278.     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;

  279. 

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

  281.            sizeof(priv->current_access_unit));

  282. 

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

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

  285. 

  286.     sps->nal_unit_header.nal_ref_idc   = 3;

  287.     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;

  288. 

  289.     sps->profile_idc = avctx->profile & 0xff;

  290.     sps->constraint_set1_flag =

  291.         !!(avctx->profile & FF_PROFILE_H264_CONSTRAINED);

  292.     sps->constraint_set3_flag =

  293.         !!(avctx->profile & FF_PROFILE_H264_INTRA);

  294. 

  295.     sps->level_idc = avctx->level;

  296. 

  297.     sps->seq_parameter_set_id = 0;

  298.     sps->chroma_format_idc    = 1;

  299. 

  300.     sps->log2_max_frame_num_minus4 = 4;

  301.     sps->pic_order_cnt_type        = 0;

  302.     sps->log2_max_pic_order_cnt_lsb_minus4 =

  303.         av_clip(av_log2(ctx->b_per_p + 1) - 2, 0, 12);

  304. 

  305.     sps->max_num_ref_frames =

  306.         (avctx->profile & FF_PROFILE_H264_INTRA) ? 0 :

  307.         1 + (ctx->b_per_p > 0);

  308. 

  309.     sps->pic_width_in_mbs_minus1        = priv->mb_width  - 1;

  310.     sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;

  311. 

  312.     sps->frame_mbs_only_flag = 1;

  313.     sps->direct_8x8_inference_flag = 1;

  314. 

  315.     if (avctx->width  != 16 * priv->mb_width ||

  316.         avctx->height != 16 * priv->mb_height) {

  317.         sps->frame_cropping_flag = 1;

  318. 

  319.         sps->frame_crop_left_offset   = 0;

  320.         sps->frame_crop_right_offset  =

  321.             (16 * priv->mb_width - avctx->width) / 2;

  322.         sps->frame_crop_top_offset    = 0;

  323.         sps->frame_crop_bottom_offset =

  324.             (16 * priv->mb_height - avctx->height) / 2;

  325.     } else {

  326.         sps->frame_cropping_flag = 0;

  327.     }

  328. 

  329.     sps->vui_parameters_present_flag = 1;

  330. 

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

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

  333.         static const AVRational sar_idc[] = {

  334.             {   0,  0 },

  335.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  336.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  337.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  338.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  339.         };

  340.         int i;

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

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

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

  344.                 sps->vui.aspect_ratio_idc = i;

  345.                 break;

  346.             }

  347.         }

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

  349.             sps->vui.aspect_ratio_idc = 255;

  350.             sps->vui.sar_width  = avctx->sample_aspect_ratio.num;

  351.             sps->vui.sar_height = avctx->sample_aspect_ratio.den;

  352.         }

  353.         sps->vui.aspect_ratio_info_present_flag = 1;

  354.     }

  355. 

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

  357.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  358.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  359.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  360.         sps->vui.video_signal_type_present_flag = 1;

  361.         sps->vui.video_format      = 5; // Unspecified.

  362.         sps->vui.video_full_range_flag =

  363.             avctx->color_range == AVCOL_RANGE_JPEG;

  364. 

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

  366.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  367.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  368.             sps->vui.colour_description_present_flag = 1;

  369.             sps->vui.colour_primaries         = avctx->color_primaries;

  370.             sps->vui.transfer_characteristics = avctx->color_trc;

  371.             sps->vui.matrix_coefficients      = avctx->colorspace;

  372.         }

  373.     } else {

  374.         sps->vui.video_format             = 5;

  375.         sps->vui.video_full_range_flag    = 0;

  376.         sps->vui.colour_primaries         = avctx->color_primaries;

  377.         sps->vui.transfer_characteristics = avctx->color_trc;

  378.         sps->vui.matrix_coefficients      = avctx->colorspace;

  379.     }

  380. 

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

  382.         sps->vui.chroma_loc_info_present_flag = 1;

  383.         sps->vui.chroma_sample_loc_type_top_field    =

  384.         sps->vui.chroma_sample_loc_type_bottom_field =

  385.             avctx->chroma_sample_location - 1;

  386.     }

  387. 

  388.     sps->vui.timing_info_present_flag = 1;

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

  390.         sps->vui.num_units_in_tick = avctx->framerate.den;

  391.         sps->vui.time_scale        = 2 * avctx->framerate.num;

  392.         sps->vui.fixed_frame_rate_flag = 1;

  393.     } else {

  394.         sps->vui.num_units_in_tick = avctx->time_base.num;

  395.         sps->vui.time_scale        = 2 * avctx->time_base.den;

  396.         sps->vui.fixed_frame_rate_flag = 0;

  397.     }

  398. 

  399.     if (opt->sei & SEI_TIMING) {

  400.         H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;

  401. 

  402.         sps->vui.nal_hrd_parameters_present_flag = 1;

  403. 

  404.         hrd->cpb_cnt_minus1 = 0;

  405. 

  406.         // Try to scale these to a sensible range so that the

  407.         // golomb encode of the value is not overlong.

  408.         hrd->bit_rate_scale =

  409.             av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);

  410.         hrd->bit_rate_value_minus1[0] =

  411.             (avctx->bit_rate >> hrd->bit_rate_scale + 6) - 1;

  412. 

  413.         hrd->cpb_size_scale =

  414.             av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);

  415.         hrd->cpb_size_value_minus1[0] =

  416.             (ctx->hrd_params.hrd.buffer_size >> hrd->cpb_size_scale + 4) - 1;

  417. 

  418.         // CBR mode as defined for the HRD cannot be achieved without filler

  419.         // data, so this flag cannot be set even with VAAPI CBR modes.

  420.         hrd->cbr_flag[0] = 0;

  421. 

  422.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  423.         hrd->cpb_removal_delay_length_minus1         = 23;

  424.         hrd->dpb_output_delay_length_minus1          = 7;

  425.         hrd->time_offset_length                      = 0;

  426. 

  427.         priv->buffering_period.seq_parameter_set_id = sps->seq_parameter_set_id;

  428. 

  429.         // This calculation can easily overflow 32 bits.

  430.         priv->buffering_period.nal.initial_cpb_removal_delay[0] = 90000 *

  431.             (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /

  432.             ctx->hrd_params.hrd.buffer_size;

  433.         priv->buffering_period.nal.initial_cpb_removal_delay_offset[0] = 0;

  434.     } else {

  435.         sps->vui.nal_hrd_parameters_present_flag = 0;

  436.         sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;

  437.     }

  438. 

  439.     sps->vui.bitstream_restriction_flag    = 1;

  440.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  441.     sps->vui.log2_max_mv_length_horizontal = 16;

  442.     sps->vui.log2_max_mv_length_vertical   = 16;

  443.     sps->vui.max_num_reorder_frames        = (ctx->b_per_p > 0);

  444.     sps->vui.max_dec_frame_buffering       = vseq->max_num_ref_frames;

  445. 

  446.     pps->nal_unit_header.nal_ref_idc = 3;

  447.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  448. 

  449.     pps->pic_parameter_set_id = 0;

  450.     pps->seq_parameter_set_id = 0;

  451. 

  452.     pps->entropy_coding_mode_flag =

  453.         !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||

  454.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  455.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

  456.     if (!opt->coder && pps->entropy_coding_mode_flag)

  457.         pps->entropy_coding_mode_flag = 0;

  458. 

  459.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  460.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  461. 

  462.     pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;

  463. 

  464.     if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||

  465.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  466.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  467.         pps->more_rbsp_data = 0;

  468.     } else {

  469.         pps->more_rbsp_data = 1;

  470. 

  471.         pps->transform_8x8_mode_flag = 1;

  472.     }

  473. 

  474.     *vseq = (VAEncSequenceParameterBufferH264) {

  475.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  476.         .level_idc        = sps->level_idc,

  477.         .intra_period     = avctx->gop_size,

  478.         .intra_idr_period = avctx->gop_size,

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

  480. 

  481.         .bits_per_second       = avctx->bit_rate,

  482.         .max_num_ref_frames    = sps->max_num_ref_frames,

  483.         .picture_width_in_mbs  = sps->pic_width_in_mbs_minus1 + 1,

  484.         .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,

  485. 

  486.         .seq_fields.bits = {

  487.             .chroma_format_idc                 = sps->chroma_format_idc,

  488.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  489.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  490.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  491.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  492.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  493.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  494.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  495.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  496.         },

  497. 

  498.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  499.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  500. 

  501.         .frame_cropping_flag      = sps->frame_cropping_flag,

  502.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  503.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  504.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  505.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  506. 

  507.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  508. 

  509.         .vui_fields.bits = {

  510.             .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,

  511.             .timing_info_present_flag       = sps->vui.timing_info_present_flag,

  512.             .bitstream_restriction_flag     = sps->vui.bitstream_restriction_flag,

  513.             .log2_max_mv_length_horizontal  = sps->vui.log2_max_mv_length_horizontal,

  514.             .log2_max_mv_length_vertical    = sps->vui.log2_max_mv_length_vertical,

  515.         },

  516. 

  517.         .aspect_ratio_idc  = sps->vui.aspect_ratio_idc,

  518.         .sar_width         = sps->vui.sar_width,

  519.         .sar_height        = sps->vui.sar_height,

  520.         .num_units_in_tick = sps->vui.num_units_in_tick,

  521.         .time_scale        = sps->vui.time_scale,

  522.     };

  523. 

  524.     *vpic = (VAEncPictureParameterBufferH264) {

  525.         .CurrPic = {

  526.             .picture_id = VA_INVALID_ID,

  527.             .flags      = VA_PICTURE_H264_INVALID,

  528.         },

  529. 

  530.         .coded_buf = VA_INVALID_ID,

  531. 

  532.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  533.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  534. 

  535.         .pic_init_qp                  = pps->pic_init_qp_minus26 + 26,

  536.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  537.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  538. 

  539.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  540.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  541. 

  542.         .pic_fields.bits = {

  543.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  544.             .weighted_pred_flag              = pps->weighted_pred_flag,

  545.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  546.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  547.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  548.             .deblocking_filter_control_present_flag =

  549.                 pps->deblocking_filter_control_present_flag,

  550.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  551.             .pic_order_present_flag          =

  552.                 pps->bottom_field_pic_order_in_frame_present_flag,

  553.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  554.         },

  555.     };

  556. 

  557.     return 0;

  558. }

  559. 

  560. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  561.                                                  VAAPIEncodePicture *pic)

  562. {

  563.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  564.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

  565.     VAAPIEncodeH264Options           *opt = ctx->codec_options;

  566.     H264RawSPS                       *sps = &priv->sps;

  567.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  568.     int i;

  569. 

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

  571.            sizeof(priv->current_access_unit));

  572. 

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

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

  575.         priv->frame_num      = 0;

  576.         priv->next_frame_num = 1;

  577.         priv->cpb_delay      = 0;

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

  579.         ++priv->idr_pic_count;

  580. 

  581.         priv->slice_type       = 7;

  582.         priv->primary_pic_type = 0;

  583.     } else {

  584.         priv->frame_num      = priv->next_frame_num;

  585. 

  586.         if (pic->type != PICTURE_TYPE_B) {

  587.             // Reference picture, so frame_num advances.

  588.             priv->next_frame_num = (priv->frame_num + 1) &

  589.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  590.         }

  591.         ++priv->cpb_delay;

  592. 

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

  594.             priv->slice_type       = 7;

  595.             priv->primary_pic_type = 0;

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

  597.             priv->slice_type       = 5;

  598.             priv->primary_pic_type = 1;

  599.         } else {

  600.             priv->slice_type       = 6;

  601.             priv->primary_pic_type = 2;

  602.         }

  603.     }

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

  605.     priv->dpb_delay     = pic->display_order - pic->encode_order + 1;

  606. 

  607.     if (opt->aud) {

  608.         priv->aud_needed = 1;

  609.         priv->aud.nal_unit_header.nal_unit_type = H264_NAL_AUD;

  610.         priv->aud.primary_pic_type = priv->primary_pic_type;

  611.     } else {

  612.         priv->aud_needed = 0;

  613.     }

  614. 

  615.     if (opt->sei & SEI_IDENTIFIER && pic->encode_order == 0)

  616.         priv->sei_needed = 1;

  617. 

  618.     if (opt->sei & SEI_TIMING) {

  619.         memset(&priv->pic_timing, 0, sizeof(priv->pic_timing));

  620. 

  621.         priv->pic_timing.cpb_removal_delay = 2 * priv->cpb_delay;

  622.         priv->pic_timing.dpb_output_delay  = 2 * priv->dpb_delay;

  623. 

  624.         priv->sei_needed = 1;

  625.     }

  626. 

  627.     if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {

  628.         priv->recovery_point.recovery_frame_cnt = 0;

  629.         priv->recovery_point.exact_match_flag   = 1;

  630.         priv->recovery_point.broken_link_flag   = ctx->b_per_p > 0;

  631. 

  632.         priv->sei_needed = 1;

  633.     }

  634. 

  635.     vpic->CurrPic = (VAPictureH264) {

  636.         .picture_id          = pic->recon_surface,

  637.         .frame_idx           = priv->frame_num,

  638.         .flags               = 0,

  639.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  640.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  641.     };

  642. 

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

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

  645.         unsigned int frame_num = (ref->encode_order - priv->last_idr_frame) &

  646.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  647.         unsigned int pic_order_cnt = ref->display_order - priv->last_idr_frame;

  648. 

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

  650.         vpic->ReferenceFrames[i] = (VAPictureH264) {

  651.             .picture_id          = ref->recon_surface,

  652.             .frame_idx           = frame_num,

  653.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  654.             .TopFieldOrderCnt    = pic_order_cnt,

  655.             .BottomFieldOrderCnt = pic_order_cnt,

  656.         };

  657.     }

  658.     for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {

  659.         vpic->ReferenceFrames[i] = (VAPictureH264) {

  660.             .picture_id = VA_INVALID_ID,

  661.             .flags      = VA_PICTURE_H264_INVALID,

  662.         };

  663.     }

  664. 

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

  666. 

  667.     vpic->frame_num = priv->frame_num;

  668. 

  669.     vpic->pic_fields.bits.idr_pic_flag       = (pic->type == PICTURE_TYPE_IDR);

  670.     vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);

  671. 

  672.     pic->nb_slices = 1;

  673. 

  674.     return 0;

  675. }

  676. 

  677. static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,

  678.                                                VAAPIEncodePicture *pic,

  679.                                                VAAPIEncodeSlice *slice)

  680. {

  681.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  682.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

  683.     H264RawSPS                       *sps = &priv->sps;

  684.     H264RawPPS                       *pps = &priv->pps;

  685.     H264RawSliceHeader                *sh = &priv->slice.header;

  686.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  687.     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;

  688.     int i;

  689. 

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

  691.         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;

  692.         sh->nal_unit_header.nal_ref_idc   = 3;

  693.     } else {

  694.         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;

  695.         sh->nal_unit_header.nal_ref_idc   = pic->type != PICTURE_TYPE_B;

  696.     }

  697. 

  698.     // Only one slice per frame.

  699.     sh->first_mb_in_slice = 0;

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

  701. 

  702.     sh->pic_parameter_set_id = pps->pic_parameter_set_id;

  703. 

  704.     sh->frame_num  = priv->frame_num;

  705.     sh->idr_pic_id = priv->idr_pic_count;

  706. 

  707.     sh->pic_order_cnt_lsb = priv->pic_order_cnt &

  708.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  709. 

  710.     sh->direct_spatial_mv_pred_flag = 1;

  711. 

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

  713.         sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);

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

  715.         sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);

  716.     else

  717.         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);

  718. 

  719. 

  720.     vslice->macroblock_address = sh->first_mb_in_slice;

  721.     vslice->num_macroblocks    = priv->mb_width * priv->mb_height;

  722. 

  723.     vslice->macroblock_info = VA_INVALID_ID;

  724. 

  725.     vslice->slice_type           = sh->slice_type % 5;

  726.     vslice->pic_parameter_set_id = sh->pic_parameter_set_id;

  727.     vslice->idr_pic_id           = sh->idr_pic_id;

  728. 

  729.     vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;

  730. 

  731.     vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;

  732. 

  733.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {

  734.         vslice->RefPicList0[i].picture_id = VA_INVALID_ID;

  735.         vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;

  736.         vslice->RefPicList1[i].picture_id = VA_INVALID_ID;

  737.         vslice->RefPicList1[i].flags      = VA_PICTURE_H264_INVALID;

  738.     }

  739. 

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

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

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

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

  744.                    pic->type == PICTURE_TYPE_B);

  745.         vslice->RefPicList0[0] = vpic->ReferenceFrames[0];

  746.     }

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

  748.         // Forward reference for B-frame.

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

  750.         vslice->RefPicList1[0] = vpic->ReferenceFrames[1];

  751.     }

  752. 

  753.     vslice->slice_qp_delta = sh->slice_qp_delta;

  754. 

  755.     return 0;

  756. }

  757. 

  758. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  759. {

  760.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  761.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  762.     VAAPIEncodeH264Options  *opt = ctx->codec_options;

  763.     int err;

  764. 

  765.     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);

  766.     if (err < 0)

  767.         return err;

  768. 

  769.     priv->mb_width  = FFALIGN(avctx->width,  16) / 16;

  770.     priv->mb_height = FFALIGN(avctx->height, 16) / 16;

  771. 

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

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

  774.         if (avctx->i_quant_factor > 0.0)

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

  776.                                         avctx->i_quant_offset) + 0.5);

  777.         else

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

  779.         if (avctx->b_quant_factor > 0.0)

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

  781.                                       avctx->b_quant_offset) + 0.5);

  782.         else

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

  784. 

  785.         opt->sei &= ~SEI_TIMING;

  786. 

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

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

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

  790. 

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

  792.                ctx->va_rc_mode == VA_RC_VBR) {

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

  794.         priv->fixed_qp_idr = 26;

  795.         priv->fixed_qp_p   = 26;

  796.         priv->fixed_qp_b   = 26;

  797. 

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

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

  800.                avctx->bit_rate);

  801. 

  802.     } else {

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

  804.     }

  805. 

  806.     if (avctx->compression_level == FF_COMPRESSION_DEFAULT)

  807.         avctx->compression_level = opt->quality;

  808. 

  809.     if (opt->sei & SEI_IDENTIFIER) {

  810.         const char *lavc  = LIBAVCODEC_IDENT;

  811.         const char *vaapi = VA_VERSION_S;

  812.         const char *driver;

  813.         int len;

  814. 

  815.         memcpy(priv->identifier.uuid_iso_iec_11578,

  816.                vaapi_encode_h264_sei_identifier_uuid,

  817.                sizeof(priv->identifier.uuid_iso_iec_11578));

  818. 

  819.         driver = vaQueryVendorString(ctx->hwctx->display);

  820.         if (!driver)

  821.             driver = "unknown driver";

  822. 

  823.         len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);

  824.         if (len >= 0) {

  825.             priv->identifier_string = av_malloc(len + 1);

  826.             if (!priv->identifier_string)

  827.                 return AVERROR(ENOMEM);

  828. 

  829.             snprintf(priv->identifier_string, len + 1,

  830.                      "%s / VAAPI %s / %s", lavc, vaapi, driver);

  831. 

  832.             priv->identifier.data = priv->identifier_string;

  833.             priv->identifier.data_length = len + 1;

  834.         }

  835.     }

  836. 

  837.     return 0;

  838. }

  839. 

  840. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  841.     .priv_data_size        = sizeof(VAAPIEncodeH264Context),

  842. 

  843.     .configure             = &vaapi_encode_h264_configure,

  844. 

  845.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  846.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  847. 

  848.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  849.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  850. 

  851.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  852.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  853. 

  854.     .sequence_header_type  = VAEncPackedHeaderSequence,

  855.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  856. 

  857.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  858.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  859. 

  860.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  861. };

  862. 

  863. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  864. {

  865.     VAAPIEncodeContext     *ctx = avctx->priv_data;

  866.     VAAPIEncodeH264Options *opt =

  867.         (VAAPIEncodeH264Options*)ctx->codec_options_data;

  868. 

  869.     ctx->codec = &vaapi_encode_type_h264;

  870. 

  871.     switch (avctx->profile) {

  872.     case FF_PROFILE_H264_BASELINE:

  873.         av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "

  874.                "supported, using constrained baseline profile instead.\n");

  875.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  876.     case FF_PROFILE_H264_CONSTRAINED_BASELINE:

  877.         ctx->va_profile = VAProfileH264ConstrainedBaseline;

  878.         if (avctx->max_b_frames != 0) {

  879.             avctx->max_b_frames = 0;

  880.             av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline profile "

  881.                    "doesn't support encoding with B frames, disabling them.\n");

  882.         }

  883.         break;

  884.     case FF_PROFILE_H264_MAIN:

  885.         ctx->va_profile = VAProfileH264Main;

  886.         break;

  887.     case FF_PROFILE_H264_EXTENDED:

  888.         av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "

  889.                "is not supported.\n");

  890.         return AVERROR_PATCHWELCOME;

  891.     case FF_PROFILE_UNKNOWN:

  892.     case FF_PROFILE_H264_HIGH:

  893.         ctx->va_profile = VAProfileH264High;

  894.         break;

  895.     case FF_PROFILE_H264_HIGH_10:

  896.     case FF_PROFILE_H264_HIGH_10_INTRA:

  897.         av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "

  898.                "are not supported.\n");

  899.         return AVERROR_PATCHWELCOME;

  900.     case FF_PROFILE_H264_HIGH_422:

  901.     case FF_PROFILE_H264_HIGH_422_INTRA:

  902.     case FF_PROFILE_H264_HIGH_444:

  903.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  904.     case FF_PROFILE_H264_HIGH_444_INTRA:

  905.     case FF_PROFILE_H264_CAVLC_444:

  906.         av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "

  907.                "are not supported.\n");

  908.         return AVERROR_PATCHWELCOME;

  909.     default:

  910.         av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",

  911.                avctx->profile);

  912.         return AVERROR(EINVAL);

  913.     }

  914.     if (opt->low_power) {

  915. #if VA_CHECK_VERSION(0, 39, 2)

  916.         ctx->va_entrypoint = VAEntrypointEncSliceLP;

  917. #else

  918.         av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "

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

  920.         return AVERROR(EINVAL);

  921. #endif

  922.     } else {

  923.         ctx->va_entrypoint = VAEntrypointEncSlice;

  924.     }

  925. 

  926.     // Only 8-bit encode is supported.

  927.     ctx->va_rt_format = VA_RT_FORMAT_YUV420;

  928. 

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

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

  931.             ctx->va_rc_mode = VA_RC_CBR;

  932.         else

  933.             ctx->va_rc_mode = VA_RC_VBR;

  934.     } else

  935.         ctx->va_rc_mode = VA_RC_CQP;

  936. 

  937.     ctx->va_packed_headers =

  938.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  939.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  940.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  941. 

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

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

  944. 

  945.     return ff_vaapi_encode_init(avctx);

  946. }

  947. 

  948. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  949. {

  950.     VAAPIEncodeContext *ctx = avctx->priv_data;

  951.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  952. 

  953.     if (priv) {

  954.         ff_cbs_close(&priv->cbc);

  955.         av_freep(&priv->identifier_string);

  956.     }

  957. 

  958.     return ff_vaapi_encode_close(avctx);

  959. }

  960. 

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

  962.                    offsetof(VAAPIEncodeH264Options, x))

  963. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  964. static const AVOption vaapi_encode_h264_options[] = {

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

  966.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },

  967.     { "quality", "Set encode quality (trades off against speed, higher is faster)",

  968.       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },

  969.     { "low_power", "Use low-power encoding mode (experimental: only supported "

  970.       "on some platforms, does not support all features)",

  971.       OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },

  972.     { "coder", "Entropy coder type",

  973.       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },

  974.         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  975.         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  976.         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  977.         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  978. 

  979.     { "aud", "Include AUD",

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

  981. 

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

  983.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  984.       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },

  985.       0, INT_MAX, FLAGS, "sei" },

  986.     { "identifier", "Include encoder version identifier",

  987.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },

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

  989.     { "timing", "Include timing parameters (buffering_period and pic_timing)",

  990.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },

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

  992.     { "recovery_point", "Include recovery points where appropriate",

  993.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

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

  995.     { NULL },

  996. };

  997. 

  998. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  999.     { "profile",        "100" },

  1000.     { "level",          "51"  },

  1001.     { "b",              "0"   },

  1002.     { "bf",             "2"   },

  1003.     { "g",              "120" },

  1004.     { "i_qfactor",      "1"   },

  1005.     { "i_qoffset",      "0"   },

  1006.     { "b_qfactor",      "6/5" },

  1007.     { "b_qoffset",      "0"   },

  1008.     { "qmin",           "0"   },

  1009.     { NULL },

  1010. };

  1011. 

  1012. static const AVClass vaapi_encode_h264_class = {

  1013.     .class_name = "h264_vaapi",

  1014.     .item_name  = av_default_item_name,

  1015.     .option     = vaapi_encode_h264_options,

  1016.     .version    = LIBAVUTIL_VERSION_INT,

  1017. };

  1018. 

  1019. AVCodec ff_h264_vaapi_encoder = {

  1020.     .name           = "h264_vaapi",

  1021.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1022.     .type           = AVMEDIA_TYPE_VIDEO,

  1023.     .id             = AV_CODEC_ID_H264,

  1024.     .priv_data_size = (sizeof(VAAPIEncodeContext) +

  1025.                        sizeof(VAAPIEncodeH264Options)),

  1026.     .init           = &vaapi_encode_h264_init,

  1027.     .encode2        = &ff_vaapi_encode2,

  1028.     .close          = &vaapi_encode_h264_close,

  1029.     .priv_class     = &vaapi_encode_h264_class,

  1030.     .capabilities   = AV_CODEC_CAP_DELAY,

  1031.     .defaults       = vaapi_encode_h264_defaults,

  1032.     .pix_fmts = (const enum AVPixelFormat[]) {

  1033.         AV_PIX_FMT_VAAPI,

  1034.         AV_PIX_FMT_NONE,

  1035.     },

  1036. };