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

  214.             if (err < 0)

  215.                 goto fail;

  216.             priv->aud_needed = 0;

  217.         }

  218. 

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

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

  221. 

  222.         i = 0;

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

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

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

  226.             ++i;

  227.         }

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

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

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

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

  232.                 ++i;

  233.             }

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

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

  236.             ++i;

  237.         }

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

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

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

  241.             ++i;

  242.         }

  243. 

  244.         priv->sei.payload_count = i;

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

  246. 

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

  248.         if (err < 0)

  249.             goto fail;

  250.         priv->sei_needed = 0;

  251. 

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

  253.         if (err < 0)

  254.             goto fail;

  255. 

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

  257. 

  258.         *type = VAEncPackedHeaderRawData;

  259.         return 0;

  260. 

  261. #if !HAVE_VAAPI_1

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

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

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

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

  266.         // driver and inserted into the stream.

  267.         *data_len = 0;

  268.         *type = VAEncPackedHeaderH264_SEI;

  269.         priv->sei_cbr_workaround_needed = 0;

  270.         return 0;

  271. #endif

  272. 

  273.     } else {

  274.         return AVERROR_EOF;

  275.     }

  276. 

  277. fail:

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

  279.     return err;

  280. }

  281. 

  282. static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)

  283. {

  284.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  285.     VAAPIEncodeH264Context           *priv = ctx->priv_data;

  286.     VAAPIEncodeH264Options            *opt = ctx->codec_options;

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

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

  289.     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;

  290.     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;

  291. 

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

  293.            sizeof(priv->current_access_unit));

  294. 

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

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

  297. 

  298.     sps->nal_unit_header.nal_ref_idc   = 3;

  299.     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;

  300. 

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

  302.     sps->constraint_set1_flag =

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

  304.     sps->constraint_set3_flag =

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

  306. 

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

  308. 

  309.     sps->seq_parameter_set_id = 0;

  310.     sps->chroma_format_idc    = 1;

  311. 

  312.     sps->log2_max_frame_num_minus4 = 4;

  313.     sps->pic_order_cnt_type        = 0;

  314.     sps->log2_max_pic_order_cnt_lsb_minus4 =

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

  316. 

  317.     sps->max_num_ref_frames =

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

  319.         1 + (ctx->b_per_p > 0);

  320. 

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

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

  323. 

  324.     sps->frame_mbs_only_flag = 1;

  325.     sps->direct_8x8_inference_flag = 1;

  326. 

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

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

  329.         sps->frame_cropping_flag = 1;

  330. 

  331.         sps->frame_crop_left_offset   = 0;

  332.         sps->frame_crop_right_offset  =

  333.             (16 * priv->mb_width - avctx->width) / 2;

  334.         sps->frame_crop_top_offset    = 0;

  335.         sps->frame_crop_bottom_offset =

  336.             (16 * priv->mb_height - avctx->height) / 2;

  337.     } else {

  338.         sps->frame_cropping_flag = 0;

  339.     }

  340. 

  341.     sps->vui_parameters_present_flag = 1;

  342. 

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

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

  345.         static const AVRational sar_idc[] = {

  346.             {   0,  0 },

  347.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  348.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  349.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  350.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  351.         };

  352.         int i;

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

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

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

  356.                 sps->vui.aspect_ratio_idc = i;

  357.                 break;

  358.             }

  359.         }

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

  361.             sps->vui.aspect_ratio_idc = 255;

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

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

  364.         }

  365.         sps->vui.aspect_ratio_info_present_flag = 1;

  366.     }

  367. 

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

  369.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  370.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  371.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  372.         sps->vui.video_signal_type_present_flag = 1;

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

  374.         sps->vui.video_full_range_flag =

  375.             avctx->color_range == AVCOL_RANGE_JPEG;

  376. 

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

  378.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  379.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  380.             sps->vui.colour_description_present_flag = 1;

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

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

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

  384.         }

  385.     } else {

  386.         sps->vui.video_format             = 5;

  387.         sps->vui.video_full_range_flag    = 0;

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

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

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

  391.     }

  392. 

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

  394.         sps->vui.chroma_loc_info_present_flag = 1;

  395.         sps->vui.chroma_sample_loc_type_top_field    =

  396.         sps->vui.chroma_sample_loc_type_bottom_field =

  397.             avctx->chroma_sample_location - 1;

  398.     }

  399. 

  400.     sps->vui.timing_info_present_flag = 1;

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

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

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

  404.         sps->vui.fixed_frame_rate_flag = 1;

  405.     } else {

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

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

  408.         sps->vui.fixed_frame_rate_flag = 0;

  409.     }

  410. 

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

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

  413. 

  414.         sps->vui.nal_hrd_parameters_present_flag = 1;

  415. 

  416.         hrd->cpb_cnt_minus1 = 0;

  417. 

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

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

  420.         hrd->bit_rate_scale =

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

  422.         hrd->bit_rate_value_minus1[0] =

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

  424. 

  425.         hrd->cpb_size_scale =

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

  427.         hrd->cpb_size_value_minus1[0] =

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

  429. 

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

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

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

  433. 

  434.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  435.         hrd->cpb_removal_delay_length_minus1         = 23;

  436.         hrd->dpb_output_delay_length_minus1          = 7;

  437.         hrd->time_offset_length                      = 0;

  438. 

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

  440. 

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

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

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

  444.             ctx->hrd_params.hrd.buffer_size;

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

  446.     } else {

  447.         sps->vui.nal_hrd_parameters_present_flag = 0;

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

  449.     }

  450. 

  451.     sps->vui.bitstream_restriction_flag    = 1;

  452.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  453.     sps->vui.log2_max_mv_length_horizontal = 16;

  454.     sps->vui.log2_max_mv_length_vertical   = 16;

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

  456.     sps->vui.max_dec_frame_buffering       = sps->max_num_ref_frames;

  457. 

  458.     pps->nal_unit_header.nal_ref_idc = 3;

  459.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  460. 

  461.     pps->pic_parameter_set_id = 0;

  462.     pps->seq_parameter_set_id = 0;

  463. 

  464.     pps->entropy_coding_mode_flag =

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

  466.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  467.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

  468. 

  469.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  470.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  471. 

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

  473. 

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

  475.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  476.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  477.         pps->more_rbsp_data = 0;

  478.     } else {

  479.         pps->more_rbsp_data = 1;

  480. 

  481.         pps->transform_8x8_mode_flag = 1;

  482.     }

  483. 

  484.     *vseq = (VAEncSequenceParameterBufferH264) {

  485.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  486.         .level_idc        = sps->level_idc,

  487.         .intra_period     = avctx->gop_size,

  488.         .intra_idr_period = avctx->gop_size,

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

  490. 

  491.         .bits_per_second       = avctx->bit_rate,

  492.         .max_num_ref_frames    = sps->max_num_ref_frames,

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

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

  495. 

  496.         .seq_fields.bits = {

  497.             .chroma_format_idc                 = sps->chroma_format_idc,

  498.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  499.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  500.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  501.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  502.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  503.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  504.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  505.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  506.         },

  507. 

  508.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  509.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  510. 

  511.         .frame_cropping_flag      = sps->frame_cropping_flag,

  512.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  513.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  514.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  515.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  516. 

  517.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  518. 

  519.         .vui_fields.bits = {

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

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

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

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

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

  525.         },

  526. 

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

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

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

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

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

  532.     };

  533. 

  534.     *vpic = (VAEncPictureParameterBufferH264) {

  535.         .CurrPic = {

  536.             .picture_id = VA_INVALID_ID,

  537.             .flags      = VA_PICTURE_H264_INVALID,

  538.         },

  539. 

  540.         .coded_buf = VA_INVALID_ID,

  541. 

  542.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  543.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  544. 

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

  546.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  547.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  548. 

  549.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  550.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  551. 

  552.         .pic_fields.bits = {

  553.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  554.             .weighted_pred_flag              = pps->weighted_pred_flag,

  555.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  556.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  557.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  558.             .deblocking_filter_control_present_flag =

  559.                 pps->deblocking_filter_control_present_flag,

  560.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  561.             .pic_order_present_flag          =

  562.                 pps->bottom_field_pic_order_in_frame_present_flag,

  563.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  564.         },

  565.     };

  566. 

  567.     return 0;

  568. }

  569. 

  570. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  571.                                                  VAAPIEncodePicture *pic)

  572. {

  573.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  574.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

  575.     VAAPIEncodeH264Options           *opt = ctx->codec_options;

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

  577.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  578.     int i;

  579. 

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

  581.            sizeof(priv->current_access_unit));

  582. 

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

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

  585.         priv->frame_num      = 0;

  586.         priv->next_frame_num = 1;

  587.         priv->cpb_delay      = 0;

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

  589.         ++priv->idr_pic_count;

  590. 

  591.         priv->slice_type       = 7;

  592.         priv->primary_pic_type = 0;

  593.     } else {

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

  595. 

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

  597.             // Reference picture, so frame_num advances.

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

  599.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  600.         }

  601.         ++priv->cpb_delay;

  602. 

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

  604.             priv->slice_type       = 7;

  605.             priv->primary_pic_type = 0;

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

  607.             priv->slice_type       = 5;

  608.             priv->primary_pic_type = 1;

  609.         } else {

  610.             priv->slice_type       = 6;

  611.             priv->primary_pic_type = 2;

  612.         }

  613.     }

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

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

  616. 

  617.     if (opt->aud) {

  618.         priv->aud_needed = 1;

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

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

  621.     } else {

  622.         priv->aud_needed = 0;

  623.     }

  624. 

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

  626.         priv->sei_needed = 1;

  627. #if !HAVE_VAAPI_1

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

  629.         priv->sei_cbr_workaround_needed = 1;

  630. #endif

  631. 

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

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

  634. 

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

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

  637. 

  638.         priv->sei_needed = 1;

  639.     }

  640. 

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

  642.         priv->recovery_point.recovery_frame_cnt = 0;

  643.         priv->recovery_point.exact_match_flag   = 1;

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

  645. 

  646.         priv->sei_needed = 1;

  647.     }

  648. 

  649.     vpic->CurrPic = (VAPictureH264) {

  650.         .picture_id          = pic->recon_surface,

  651.         .frame_idx           = priv->frame_num,

  652.         .flags               = 0,

  653.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  654.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  655.     };

  656. 

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

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

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

  660.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

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

  662. 

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

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

  665.             .picture_id          = ref->recon_surface,

  666.             .frame_idx           = frame_num,

  667.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  668.             .TopFieldOrderCnt    = pic_order_cnt,

  669.             .BottomFieldOrderCnt = pic_order_cnt,

  670.         };

  671.     }

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

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

  674.             .picture_id = VA_INVALID_ID,

  675.             .flags      = VA_PICTURE_H264_INVALID,

  676.         };

  677.     }

  678. 

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

  680. 

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

  682. 

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

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

  685. 

  686.     pic->nb_slices = 1;

  687. 

  688.     return 0;

  689. }

  690. 

  691. static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,

  692.                                                VAAPIEncodePicture *pic,

  693.                                                VAAPIEncodeSlice *slice)

  694. {

  695.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  696.     VAAPIEncodeH264Context          *priv = ctx->priv_data;

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

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

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

  700.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  701.     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;

  702.     int i;

  703. 

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

  705.         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;

  706.         sh->nal_unit_header.nal_ref_idc   = 3;

  707.     } else {

  708.         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;

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

  710.     }

  711. 

  712.     // Only one slice per frame.

  713.     sh->first_mb_in_slice = 0;

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

  715. 

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

  717. 

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

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

  720. 

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

  722.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  723. 

  724.     sh->direct_spatial_mv_pred_flag = 1;

  725. 

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

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

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

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

  730.     else

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

  732. 

  733. 

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

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

  736. 

  737.     vslice->macroblock_info = VA_INVALID_ID;

  738. 

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

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

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

  742. 

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

  744. 

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

  746. 

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

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

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

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

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

  752.     }

  753. 

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

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

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

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

  758.                    pic->type == PICTURE_TYPE_B);

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

  760.     }

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

  762.         // Forward reference for B-frame.

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

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

  765.     }

  766. 

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

  768. 

  769.     return 0;

  770. }

  771. 

  772. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  773. {

  774.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  775.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  776.     VAAPIEncodeH264Options  *opt = ctx->codec_options;

  777.     int err;

  778. 

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

  780.     if (err < 0)

  781.         return err;

  782. 

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

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

  785. 

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

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

  788.         if (avctx->i_quant_factor > 0.0)

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

  790.                                         avctx->i_quant_offset) + 0.5);

  791.         else

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

  793.         if (avctx->b_quant_factor > 0.0)

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

  795.                                       avctx->b_quant_offset) + 0.5);

  796.         else

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

  798. 

  799.         opt->sei &= ~SEI_TIMING;

  800. 

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

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

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

  804. 

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

  806.                ctx->va_rc_mode == VA_RC_VBR) {

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

  808.         priv->fixed_qp_idr = 26;

  809.         priv->fixed_qp_p   = 26;

  810.         priv->fixed_qp_b   = 26;

  811. 

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

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

  814.                avctx->bit_rate);

  815. 

  816.     } else {

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

  818.     }

  819. 

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

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

  822. 

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

  824.         const char *lavc  = LIBAVCODEC_IDENT;

  825.         const char *vaapi = VA_VERSION_S;

  826.         const char *driver;

  827.         int len;

  828. 

  829.         memcpy(priv->identifier.uuid_iso_iec_11578,

  830.                vaapi_encode_h264_sei_identifier_uuid,

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

  832. 

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

  834.         if (!driver)

  835.             driver = "unknown driver";

  836. 

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

  838.         if (len >= 0) {

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

  840.             if (!priv->identifier_string)

  841.                 return AVERROR(ENOMEM);

  842. 

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

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

  845. 

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

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

  848.         }

  849.     }

  850. 

  851.     return 0;

  852. }

  853. 

  854. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  855.     .priv_data_size        = sizeof(VAAPIEncodeH264Context),

  856. 

  857.     .configure             = &vaapi_encode_h264_configure,

  858. 

  859.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  860.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  861. 

  862.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  863.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  864. 

  865.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  866.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  867. 

  868.     .sequence_header_type  = VAEncPackedHeaderSequence,

  869.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  870. 

  871.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  872.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  873. 

  874.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  875. };

  876. 

  877. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  878. {

  879.     VAAPIEncodeContext     *ctx = avctx->priv_data;

  880.     VAAPIEncodeH264Options *opt =

  881.         (VAAPIEncodeH264Options*)ctx->codec_options_data;

  882. 

  883.     ctx->codec = &vaapi_encode_type_h264;

  884. 

  885.     switch (avctx->profile) {

  886.     case FF_PROFILE_H264_BASELINE:

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

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

  889.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  890.     case FF_PROFILE_H264_CONSTRAINED_BASELINE:

  891.         ctx->va_profile = VAProfileH264ConstrainedBaseline;

  892.         break;

  893.     case FF_PROFILE_H264_MAIN:

  894.         ctx->va_profile = VAProfileH264Main;

  895.         break;

  896.     case FF_PROFILE_H264_EXTENDED:

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

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

  899.         return AVERROR_PATCHWELCOME;

  900.     case FF_PROFILE_UNKNOWN:

  901.     case FF_PROFILE_H264_HIGH:

  902.         ctx->va_profile = VAProfileH264High;

  903.         break;

  904.     case FF_PROFILE_H264_HIGH_10:

  905.     case FF_PROFILE_H264_HIGH_10_INTRA:

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

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

  908.         return AVERROR_PATCHWELCOME;

  909.     case FF_PROFILE_H264_HIGH_422:

  910.     case FF_PROFILE_H264_HIGH_422_INTRA:

  911.     case FF_PROFILE_H264_HIGH_444:

  912.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  913.     case FF_PROFILE_H264_HIGH_444_INTRA:

  914.     case FF_PROFILE_H264_CAVLC_444:

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

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

  917.         return AVERROR_PATCHWELCOME;

  918.     default:

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

  920.                avctx->profile);

  921.         return AVERROR(EINVAL);

  922.     }

  923.     if (opt->low_power) {

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

  925.         ctx->va_entrypoint = VAEntrypointEncSliceLP;

  926. #else

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

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

  929.         return AVERROR(EINVAL);

  930. #endif

  931.     } else {

  932.         ctx->va_entrypoint = VAEntrypointEncSlice;

  933.     }

  934. 

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

  936.     ctx->va_rt_format = VA_RT_FORMAT_YUV420;

  937. 

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

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

  940.             ctx->va_rc_mode = VA_RC_CBR;

  941.         else

  942.             ctx->va_rc_mode = VA_RC_VBR;

  943.     } else

  944.         ctx->va_rc_mode = VA_RC_CQP;

  945. 

  946.     ctx->va_packed_headers =

  947.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  948.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  949.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  950. 

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

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

  953. 

  954.     return ff_vaapi_encode_init(avctx);

  955. }

  956. 

  957. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  958. {

  959.     VAAPIEncodeContext *ctx = avctx->priv_data;

  960.     VAAPIEncodeH264Context *priv = ctx->priv_data;

  961. 

  962.     if (priv) {

  963.         ff_cbs_close(&priv->cbc);

  964.         av_freep(&priv->identifier_string);

  965.     }

  966. 

  967.     return ff_vaapi_encode_close(avctx);

  968. }

  969. 

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

  971.                    offsetof(VAAPIEncodeH264Options, x))

  972. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  973. static const AVOption vaapi_encode_h264_options[] = {

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

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

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

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

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

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

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

  981. 

  982.     { "aud", "Include AUD",

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

  984. 

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

  986.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

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

  988.       0, INT_MAX, FLAGS, "sei" },

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

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

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

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

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

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

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

  996.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

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

  998.     { NULL },

  999. };

  1000. 

  1001. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  1002.     { "profile",        "100" },

  1003.     { "level",          "51"  },

  1004.     { "b",              "0"   },

  1005.     { "bf",             "2"   },

  1006.     { "g",              "120" },

  1007.     { "i_qfactor",      "1.0" },

  1008.     { "i_qoffset",      "0.0" },

  1009.     { "b_qfactor",      "1.2" },

  1010.     { "b_qoffset",      "0.0" },

  1011.     { "qmin",           "0"   },

  1012.     { NULL },

  1013. };

  1014. 

  1015. static const AVClass vaapi_encode_h264_class = {

  1016.     .class_name = "h264_vaapi",

  1017.     .item_name  = av_default_item_name,

  1018.     .option     = vaapi_encode_h264_options,

  1019.     .version    = LIBAVUTIL_VERSION_INT,

  1020. };

  1021. 

  1022. AVCodec ff_h264_vaapi_encoder = {

  1023.     .name           = "h264_vaapi",

  1024.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1025.     .type           = AVMEDIA_TYPE_VIDEO,

  1026.     .id             = AV_CODEC_ID_H264,

  1027.     .priv_data_size = (sizeof(VAAPIEncodeContext) +

  1028.                        sizeof(VAAPIEncodeH264Options)),

  1029.     .init           = &vaapi_encode_h264_init,

  1030.     .encode2        = &ff_vaapi_encode2,

  1031.     .close          = &vaapi_encode_h264_close,

  1032.     .priv_class     = &vaapi_encode_h264_class,

  1033.     .capabilities   = AV_CODEC_CAP_DELAY,

  1034.     .defaults       = vaapi_encode_h264_defaults,

  1035.     .pix_fmts = (const enum AVPixelFormat[]) {

  1036.         AV_PIX_FMT_VAAPI,

  1037.         AV_PIX_FMT_NONE,

  1038.     },

  1039. };