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FFmpeg/libavcodec/vaapi_encode_h264.c

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  1. /*

  2.  * This file is part of Libav.

  3.  *

  4.  * Libav 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.  * Libav 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 Libav; 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.     int sei_cbr_workaround_needed;

  86. } VAAPIEncodeH264Context;

  87. 

  88. typedef struct VAAPIEncodeH264Options {

  89.     int qp;

  90.     int quality;

  91.     int low_power;

  92.     int aud;

  93.     int sei;

  94. } VAAPIEncodeH264Options;

  95. 

  96. 

  97. static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,

  98.                                                char *data, size_t *data_len,

  99.                                                CodedBitstreamFragment *au)

  100. {

  101.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  102.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  103.     int err;

  104. 

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

  106.     if (err < 0) {

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

  108.         return err;

  109.     }

  110. 

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

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

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

  114.                8 * au->data_size - au->data_bit_padding);

  115.         return AVERROR(ENOSPC);

  116.     }

  117. 

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

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

  120. 

  121.     return 0;

  122. }

  123. 

  124. static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,

  125.                                      CodedBitstreamFragment *au,

  126.                                      void *nal_unit)

  127. {

  128.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  129.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  130.     H264RawNALUnitHeader *header = nal_unit;

  131.     int err;

  132. 

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

  134.                                      header->nal_unit_type, nal_unit);

  135.     if (err < 0) {

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

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

  138.         return err;

  139.     }

  140. 

  141.     return 0;

  142. }

  143. 

  144. static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,

  145.                                                    char *data, size_t *data_len)

  146. {

  147.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  148.     VAAPIEncodeH264Context *priv = ctx->priv_data;

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

  150.     int err;

  151. 

  152.     if (priv->aud_needed) {

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

  154.         if (err < 0)

  155.             goto fail;

  156.         priv->aud_needed = 0;

  157.     }

  158. 

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

  160.     if (err < 0)

  161.         goto fail;

  162. 

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

  164.     if (err < 0)

  165.         goto fail;

  166. 

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

  168. fail:

  169.     ff_cbs_fragment_uninit(&priv->cbc, au);

  170.     return err;

  171. }

  172. 

  173. static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,

  174.                                                 VAAPIEncodePicture *pic,

  175.                                                 VAAPIEncodeSlice *slice,

  176.                                                 char *data, size_t *data_len)

  177. {

  178.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  179.     VAAPIEncodeH264Context *priv = ctx->priv_data;

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

  181.     int err;

  182. 

  183.     if (priv->aud_needed) {

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

  185.         if (err < 0)

  186.             goto fail;

  187.         priv->aud_needed = 0;

  188.     }

  189. 

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

  191.     if (err < 0)

  192.         goto fail;

  193. 

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

  195. fail:

  196.     ff_cbs_fragment_uninit(&priv->cbc, au);

  197.     return err;

  198. }

  199. 

  200. static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,

  201.                                                 VAAPIEncodePicture *pic,

  202.                                                 int index, int *type,

  203.                                                 char *data, size_t *data_len)

  204. {

  205.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  206.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  207.     VAAPIEncodeH264Options  *opt = ctx->codec_options;

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

  209.     int err, i;

  210. 

  211.     if (priv->sei_needed) {

  212.         if (priv->aud_needed) {

  213.             vaapi_encode_h264_add_nal(avctx, au, &priv->aud);

  214.             priv->aud_needed = 0;

  215.         }

  216. 

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

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

  219. 

  220.         i = 0;

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

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

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

  224.             ++i;

  225.         }

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

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

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

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

  230.                 ++i;

  231.             }

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

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

  234.             ++i;

  235.         }

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

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

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

  239.             ++i;

  240.         }

  241. 

  242.         priv->sei.payload_count = i;

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

  244. 

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

  246.         if (err < 0)

  247.             goto fail;

  248.         priv->sei_needed = 0;

  249. 

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

  251.         if (err < 0)

  252.             goto fail;

  253. 

  254.         ff_cbs_fragment_uninit(&priv->cbc, au);

  255. 

  256.         *type = VAEncPackedHeaderH264_SEI;

  257.         return 0;

  258. 

  259. #if !HAVE_VAAPI_1

  260.     } else if (priv->sei_cbr_workaround_needed) {

  261.         // Insert a zero-length header using the old SEI type.  This is

  262.         // required to avoid triggering broken behaviour on Intel platforms

  263.         // in CBR mode where an invalid SEI message is generated by the

  264.         // driver and inserted into the stream.

  265.         *data_len = 0;

  266.         *type = VAEncPackedHeaderH264_SEI;

  267.         priv->sei_cbr_workaround_needed = 0;

  268.         return 0;

  269. #endif

  270. 

  271.     } else {

  272.         return AVERROR_EOF;

  273.     }

  274. 

  275. fail:

  276.     ff_cbs_fragment_uninit(&priv->cbc, au);

  277.     return err;

  278. }

  279. 

  280. static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)

  281. {

  282.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  283.     VAAPIEncodeH264Context           *priv = ctx->priv_data;

  284.     VAAPIEncodeH264Options            *opt = ctx->codec_options;

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

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

  287.     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;

  288.     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;

  289. 

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

  291.            sizeof(priv->current_access_unit));

  292. 

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

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

  295. 

  296.     sps->nal_unit_header.nal_ref_idc   = 3;

  297.     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;

  298. 

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

  300.     sps->constraint_set1_flag =

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

  302.     sps->constraint_set3_flag =

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

  304. 

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

  306. 

  307.     sps->seq_parameter_set_id = 0;

  308.     sps->chroma_format_idc    = 1;

  309. 

  310.     sps->log2_max_frame_num_minus4 = 4;

  311.     sps->pic_order_cnt_type        = 0;

  312.     sps->log2_max_pic_order_cnt_lsb_minus4 =

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

  314. 

  315.     sps->max_num_ref_frames =

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

  317.         1 + (ctx->b_per_p > 0);

  318. 

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

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

  321. 

  322.     sps->frame_mbs_only_flag = 1;

  323.     sps->direct_8x8_inference_flag = 1;

  324. 

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

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

  327.         sps->frame_cropping_flag = 1;

  328. 

  329.         sps->frame_crop_left_offset   = 0;

  330.         sps->frame_crop_right_offset  =

  331.             (16 * priv->mb_width - avctx->width) / 2;

  332.         sps->frame_crop_top_offset    = 0;

  333.         sps->frame_crop_bottom_offset =

  334.             (16 * priv->mb_height - avctx->height) / 2;

  335.     } else {

  336.         sps->frame_cropping_flag = 0;

  337.     }

  338. 

  339.     sps->vui_parameters_present_flag = 1;

  340. 

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

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

  343.         static const AVRational sar_idc[] = {

  344.             {   0,  0 },

  345.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  346.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  347.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  348.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  349.         };

  350.         int i;

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

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

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

  354.                 sps->vui.aspect_ratio_idc = i;

  355.                 break;

  356.             }

  357.         }

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

  359.             sps->vui.aspect_ratio_idc = 255;

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

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

  362.         }

  363.         sps->vui.aspect_ratio_info_present_flag = 1;

  364.     }

  365. 

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

  367.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  368.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  369.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  370.         sps->vui.video_signal_type_present_flag = 1;

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

  372.         sps->vui.video_full_range_flag =

  373.             avctx->color_range == AVCOL_RANGE_JPEG;

  374. 

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

  376.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  377.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  378.             sps->vui.colour_description_present_flag = 1;

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

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

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

  382.         }

  383.     } else {

  384.         sps->vui.video_format             = 5;

  385.         sps->vui.video_full_range_flag    = 0;

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

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

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

  389.     }

  390. 

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

  392.         sps->vui.chroma_loc_info_present_flag = 1;

  393.         sps->vui.chroma_sample_loc_type_top_field    =

  394.         sps->vui.chroma_sample_loc_type_bottom_field =

  395.             avctx->chroma_sample_location - 1;

  396.     }

  397. 

  398.     sps->vui.timing_info_present_flag = 1;

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

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

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

  402.         sps->vui.fixed_frame_rate_flag = 1;

  403.     } else {

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

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

  406.         sps->vui.fixed_frame_rate_flag = 0;

  407.     }

  408. 

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

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

  411. 

  412.         sps->vui.nal_hrd_parameters_present_flag = 1;

  413. 

  414.         hrd->cpb_cnt_minus1 = 0;

  415. 

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

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

  418.         hrd->bit_rate_scale =

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

  420.         hrd->bit_rate_value_minus1[0] =

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

  422. 

  423.         hrd->cpb_size_scale =

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

  425.         hrd->cpb_size_value_minus1[0] =

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

  427. 

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

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

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

  431. 

  432.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  433.         hrd->cpb_removal_delay_length_minus1         = 23;

  434.         hrd->dpb_output_delay_length_minus1          = 7;

  435.         hrd->time_offset_length                      = 0;

  436. 

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

  438. 

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

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

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

  442.             ctx->hrd_params.hrd.buffer_size;

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

  444.     } else {

  445.         sps->vui.nal_hrd_parameters_present_flag = 0;

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

  447.     }

  448. 

  449.     sps->vui.bitstream_restriction_flag    = 1;

  450.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  451.     sps->vui.log2_max_mv_length_horizontal = 16;

  452.     sps->vui.log2_max_mv_length_vertical   = 16;

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

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

  455. 

  456.     pps->nal_unit_header.nal_ref_idc = 3;

  457.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  458. 

  459.     pps->pic_parameter_set_id = 0;

  460.     pps->seq_parameter_set_id = 0;

  461. 

  462.     pps->entropy_coding_mode_flag =

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

  464.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  465.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

  466. 

  467.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  468.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  469. 

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

  471. 

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

  473.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  474.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  475.         pps->more_rbsp_data = 0;

  476.     } else {

  477.         pps->more_rbsp_data = 1;

  478. 

  479.         pps->transform_8x8_mode_flag = 1;

  480.     }

  481. 

  482.     *vseq = (VAEncSequenceParameterBufferH264) {

  483.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  484.         .level_idc        = sps->level_idc,

  485.         .intra_period     = avctx->gop_size,

  486.         .intra_idr_period = avctx->gop_size,

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

  488. 

  489.         .bits_per_second       = avctx->bit_rate,

  490.         .max_num_ref_frames    = sps->max_num_ref_frames,

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

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

  493. 

  494.         .seq_fields.bits = {

  495.             .chroma_format_idc                 = sps->chroma_format_idc,

  496.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  497.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  498.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  499.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  500.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  501.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  502.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  503.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  504.         },

  505. 

  506.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  507.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  508. 

  509.         .frame_cropping_flag      = sps->frame_cropping_flag,

  510.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  511.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  512.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  513.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  514. 

  515.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  516. 

  517.         .vui_fields.bits = {

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

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

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

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

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

  523.         },

  524. 

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

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

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

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

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

  530.     };

  531. 

  532.     *vpic = (VAEncPictureParameterBufferH264) {

  533.         .CurrPic = {

  534.             .picture_id = VA_INVALID_ID,

  535.             .flags      = VA_PICTURE_H264_INVALID,

  536.         },

  537. 

  538.         .coded_buf = VA_INVALID_ID,

  539. 

  540.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  541.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  542. 

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

  544.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  545.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  546. 

  547.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  548.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  549. 

  550.         .pic_fields.bits = {

  551.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  552.             .weighted_pred_flag              = pps->weighted_pred_flag,

  553.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  554.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  555.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  556.             .deblocking_filter_control_present_flag =

  557.                 pps->deblocking_filter_control_present_flag,

  558.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  559.             .pic_order_present_flag          =

  560.                 pps->bottom_field_pic_order_in_frame_present_flag,

  561.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  562.         },

  563.     };

  564. 

  565.     return 0;

  566. }

  567. 

  568. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  569.                                                  VAAPIEncodePicture *pic)

  570. {

  571.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  572.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

  573.     VAAPIEncodeH264Options           *opt = ctx->codec_options;

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

  575.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  576.     int i;

  577. 

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

  579.            sizeof(priv->current_access_unit));

  580. 

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

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

  583.         priv->frame_num      = 0;

  584.         priv->next_frame_num = 1;

  585.         priv->cpb_delay      = 0;

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

  587.         ++priv->idr_pic_count;

  588. 

  589.         priv->slice_type       = 7;

  590.         priv->primary_pic_type = 0;

  591.     } else {

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

  593. 

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

  595.             // Reference picture, so frame_num advances.

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

  597.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  598.         }

  599.         ++priv->cpb_delay;

  600. 

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

  602.             priv->slice_type       = 7;

  603.             priv->primary_pic_type = 0;

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

  605.             priv->slice_type       = 5;

  606.             priv->primary_pic_type = 1;

  607.         } else {

  608.             priv->slice_type       = 6;

  609.             priv->primary_pic_type = 2;

  610.         }

  611.     }

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

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

  614. 

  615.     if (opt->aud) {

  616.         priv->aud_needed = 1;

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

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

  619.     } else {

  620.         priv->aud_needed = 0;

  621.     }

  622. 

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

  624.         priv->sei_needed = 1;

  625. #if !HAVE_VAAPI_1

  626.     if (ctx->va_rc_mode == VA_RC_CBR)

  627.         priv->sei_cbr_workaround_needed = 1;

  628. #endif

  629. 

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

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

  632. 

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

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

  635. 

  636.         priv->sei_needed = 1;

  637.     }

  638. 

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

  640.         priv->recovery_point.recovery_frame_cnt = 0;

  641.         priv->recovery_point.exact_match_flag   = 1;

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

  643. 

  644.         priv->sei_needed = 1;

  645.     }

  646. 

  647.     vpic->CurrPic = (VAPictureH264) {

  648.         .picture_id          = pic->recon_surface,

  649.         .frame_idx           = priv->frame_num,

  650.         .flags               = 0,

  651.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  652.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  653.     };

  654. 

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

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

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

  658.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

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

  660. 

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

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

  663.             .picture_id          = ref->recon_surface,

  664.             .frame_idx           = frame_num,

  665.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  666.             .TopFieldOrderCnt    = pic_order_cnt,

  667.             .BottomFieldOrderCnt = pic_order_cnt,

  668.         };

  669.     }

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

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

  672.             .picture_id = VA_INVALID_ID,

  673.             .flags      = VA_PICTURE_H264_INVALID,

  674.         };

  675.     }

  676. 

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

  678. 

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

  680. 

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

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

  683. 

  684.     pic->nb_slices = 1;

  685. 

  686.     return 0;

  687. }

  688. 

  689. static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,

  690.                                                VAAPIEncodePicture *pic,

  691.                                                VAAPIEncodeSlice *slice)

  692. {

  693.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  694.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

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

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

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

  698.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  699.     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;

  700.     int i;

  701. 

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

  703.         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;

  704.         sh->nal_unit_header.nal_ref_idc   = 3;

  705.     } else {

  706.         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;

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

  708.     }

  709. 

  710.     // Only one slice per frame.

  711.     sh->first_mb_in_slice = 0;

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

  713. 

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

  715. 

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

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

  718. 

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

  720.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  721. 

  722.     sh->direct_spatial_mv_pred_flag = 1;

  723. 

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

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

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

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

  728.     else

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

  730. 

  731. 

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

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

  734. 

  735.     vslice->macroblock_info = VA_INVALID_ID;

  736. 

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

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

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

  740. 

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

  742. 

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

  744. 

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

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

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

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

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

  750.     }

  751. 

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

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

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

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

  756.                    pic->type == PICTURE_TYPE_B);

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

  758.     }

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

  760.         // Forward reference for B-frame.

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

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

  763.     }

  764. 

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

  766. 

  767.     return 0;

  768. }

  769. 

  770. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  771. {

  772.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  773.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  774.     VAAPIEncodeH264Options  *opt = ctx->codec_options;

  775.     int err;

  776. 

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

  778.     if (err < 0)

  779.         return err;

  780. 

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

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

  783. 

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

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

  786.         if (avctx->i_quant_factor > 0.0)

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

  788.                                         avctx->i_quant_offset) + 0.5);

  789.         else

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

  791.         if (avctx->b_quant_factor > 0.0)

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

  793.                                       avctx->b_quant_offset) + 0.5);

  794.         else

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

  796. 

  797.         opt->sei &= ~SEI_TIMING;

  798. 

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

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

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

  802. 

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

  804.                ctx->va_rc_mode == VA_RC_VBR) {

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

  806.         priv->fixed_qp_idr = 26;

  807.         priv->fixed_qp_p   = 26;

  808.         priv->fixed_qp_b   = 26;

  809. 

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

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

  812.                avctx->bit_rate);

  813. 

  814.     } else {

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

  816.     }

  817. 

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

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

  820. 

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

  822.         const char *lavc  = LIBAVCODEC_IDENT;

  823.         const char *vaapi = VA_VERSION_S;

  824.         const char *driver;

  825.         int len;

  826. 

  827.         memcpy(priv->identifier.uuid_iso_iec_11578,

  828.                vaapi_encode_h264_sei_identifier_uuid,

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

  830. 

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

  832.         if (!driver)

  833.             driver = "unknown driver";

  834. 

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

  836.         if (len >= 0) {

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

  838.             if (!priv->identifier_string)

  839.                 return AVERROR(ENOMEM);

  840. 

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

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

  843. 

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

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

  846.         }

  847.     }

  848. 

  849.     return 0;

  850. }

  851. 

  852. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  853.     .priv_data_size        = sizeof(VAAPIEncodeH264Context),

  854. 

  855.     .configure             = &vaapi_encode_h264_configure,

  856. 

  857.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  858.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  859. 

  860.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  861.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  862. 

  863.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  864.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  865. 

  866.     .sequence_header_type  = VAEncPackedHeaderSequence,

  867.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  868. 

  869.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  870.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  871. 

  872.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  873. };

  874. 

  875. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  876. {

  877.     VAAPIEncodeContext     *ctx = avctx->priv_data;

  878.     VAAPIEncodeH264Options *opt =

  879.         (VAAPIEncodeH264Options*)ctx->codec_options_data;

  880. 

  881.     ctx->codec = &vaapi_encode_type_h264;

  882. 

  883.     switch (avctx->profile) {

  884.     case FF_PROFILE_H264_BASELINE:

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

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

  887.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  888.     case FF_PROFILE_H264_CONSTRAINED_BASELINE:

  889.         ctx->va_profile = VAProfileH264ConstrainedBaseline;

  890.         break;

  891.     case FF_PROFILE_H264_MAIN:

  892.         ctx->va_profile = VAProfileH264Main;

  893.         break;

  894.     case FF_PROFILE_H264_EXTENDED:

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

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

  897.         return AVERROR_PATCHWELCOME;

  898.     case FF_PROFILE_UNKNOWN:

  899.     case FF_PROFILE_H264_HIGH:

  900.         ctx->va_profile = VAProfileH264High;

  901.         break;

  902.     case FF_PROFILE_H264_HIGH_10:

  903.     case FF_PROFILE_H264_HIGH_10_INTRA:

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

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

  906.         return AVERROR_PATCHWELCOME;

  907.     case FF_PROFILE_H264_HIGH_422:

  908.     case FF_PROFILE_H264_HIGH_422_INTRA:

  909.     case FF_PROFILE_H264_HIGH_444:

  910.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  911.     case FF_PROFILE_H264_HIGH_444_INTRA:

  912.     case FF_PROFILE_H264_CAVLC_444:

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

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

  915.         return AVERROR_PATCHWELCOME;

  916.     default:

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

  918.                avctx->profile);

  919.         return AVERROR(EINVAL);

  920.     }

  921.     if (opt->low_power) {

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

  923.         ctx->va_entrypoint = VAEntrypointEncSliceLP;

  924. #else

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

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

  927.         return AVERROR(EINVAL);

  928. #endif

  929.     } else {

  930.         ctx->va_entrypoint = VAEntrypointEncSlice;

  931.     }

  932. 

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

  934.     ctx->va_rt_format = VA_RT_FORMAT_YUV420;

  935. 

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

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

  938.             ctx->va_rc_mode = VA_RC_CBR;

  939.         else

  940.             ctx->va_rc_mode = VA_RC_VBR;

  941.     } else

  942.         ctx->va_rc_mode = VA_RC_CQP;

  943. 

  944.     ctx->va_packed_headers =

  945.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  946.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  947.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  948. 

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

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

  951. 

  952.     return ff_vaapi_encode_init(avctx);

  953. }

  954. 

  955. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  956. {

  957.     VAAPIEncodeContext *ctx = avctx->priv_data;

  958.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  959. 

  960.     if (priv) {

  961.         ff_cbs_close(&priv->cbc);

  962.         av_freep(&priv->identifier_string);

  963.     }

  964. 

  965.     return ff_vaapi_encode_close(avctx);

  966. }

  967. 

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

  969.                    offsetof(VAAPIEncodeH264Options, x))

  970. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  971. static const AVOption vaapi_encode_h264_options[] = {

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

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

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

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

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

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

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

  979. 

  980.     { "aud", "Include AUD",

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

  982. 

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

  984.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

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

  986.       0, INT_MAX, FLAGS, "sei" },

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

  988.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },

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

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

  991.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },

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

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

  994.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

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

  996.     { NULL },

  997. };

  998. 

  999. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  1000.     { "profile",        "100" },

  1001.     { "level",          "51"  },

  1002.     { "b",              "0"   },

  1003.     { "bf",             "2"   },

  1004.     { "g",              "120" },

  1005.     { "i_qfactor",      "1.0" },

  1006.     { "i_qoffset",      "0.0" },

  1007.     { "b_qfactor",      "1.2" },

  1008.     { "b_qoffset",      "0.0" },

  1009.     { "qmin",           "0"   },

  1010.     { NULL },

  1011. };

  1012. 

  1013. static const AVClass vaapi_encode_h264_class = {

  1014.     .class_name = "h264_vaapi",

  1015.     .item_name  = av_default_item_name,

  1016.     .option     = vaapi_encode_h264_options,

  1017.     .version    = LIBAVUTIL_VERSION_INT,

  1018. };

  1019. 

  1020. AVCodec ff_h264_vaapi_encoder = {

  1021.     .name           = "h264_vaapi",

  1022.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1023.     .type           = AVMEDIA_TYPE_VIDEO,

  1024.     .id             = AV_CODEC_ID_H264,

  1025.     .priv_data_size = (sizeof(VAAPIEncodeContext) +

  1026.                        sizeof(VAAPIEncodeH264Options)),

  1027.     .init           = &vaapi_encode_h264_init,

  1028.     .encode2        = &ff_vaapi_encode2,

  1029.     .close          = &vaapi_encode_h264_close,

  1030.     .priv_class     = &vaapi_encode_h264_class,

  1031.     .capabilities   = AV_CODEC_CAP_DELAY,

  1032.     .defaults       = vaapi_encode_h264_defaults,

  1033.     .pix_fmts = (const enum AVPixelFormat[]) {

  1034.         AV_PIX_FMT_VAAPI,

  1035.         AV_PIX_FMT_NONE,

  1036.     },

  1037. };