falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92024 Commits
32 Branches
380MB
Tree: 4b2e3de8c0
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '4b2e3de8c0'
${ noResults }
FFmpeg/libavcodec/vaapi_encode_h264.c

1106 lines
39KB
Raw Blame History 

  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_levels.h"

  34. #include "h264_sei.h"

  35. #include "internal.h"

  36. #include "vaapi_encode.h"

  37. 

  38. enum {

  39.     SEI_TIMING         = 0x01,

  40.     SEI_IDENTIFIER     = 0x02,

  41.     SEI_RECOVERY_POINT = 0x04,

  42. };

  43. 

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

  45. static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {

  46.     0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,

  47.     0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,

  48. };

  49. 

  50. typedef struct VAAPIEncodeH264Context {

  51.     VAAPIEncodeContext common;

  52. 

  53.     // User options.

  54.     int qp;

  55.     int quality;

  56.     int coder;

  57.     int aud;

  58.     int sei;

  59.     int profile;

  60.     int level;

  61. 

  62.     // Derived settings.

  63.     int mb_width;

  64.     int mb_height;

  65. 

  66.     int fixed_qp_idr;

  67.     int fixed_qp_p;

  68.     int fixed_qp_b;

  69. 

  70.     // Stream state.

  71.     int frame_num;

  72.     int pic_order_cnt;

  73.     int next_frame_num;

  74.     int64_t last_idr_frame;

  75.     int64_t idr_pic_count;

  76. 

  77.     int primary_pic_type;

  78.     int slice_type;

  79. 

  80.     int cpb_delay;

  81.     int dpb_delay;

  82. 

  83.     // Writer structures.

  84.     CodedBitstreamContext *cbc;

  85.     CodedBitstreamFragment current_access_unit;

  86. 

  87.     H264RawAUD   raw_aud;

  88.     H264RawSPS   raw_sps;

  89.     H264RawPPS   raw_pps;

  90.     H264RawSEI   raw_sei;

  91.     H264RawSlice raw_slice;

  92. 

  93.     H264RawSEIBufferingPeriod      sei_buffering_period;

  94.     H264RawSEIPicTiming            sei_pic_timing;

  95.     H264RawSEIRecoveryPoint        sei_recovery_point;

  96.     H264RawSEIUserDataUnregistered sei_identifier;

  97.     char                          *sei_identifier_string;

  98. 

  99.     int aud_needed;

  100.     int sei_needed;

  101.     int sei_cbr_workaround_needed;

  102. } VAAPIEncodeH264Context;

  103. 

  104. 

  105. static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,

  106.                                                char *data, size_t *data_len,

  107.                                                CodedBitstreamFragment *au)

  108. {

  109.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  110.     int err;

  111. 

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

  113.     if (err < 0) {

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

  115.         return err;

  116.     }

  117. 

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

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

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

  121.                8 * au->data_size - au->data_bit_padding);

  122.         return AVERROR(ENOSPC);

  123.     }

  124. 

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

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

  127. 

  128.     return 0;

  129. }

  130. 

  131. static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,

  132.                                      CodedBitstreamFragment *au,

  133.                                      void *nal_unit)

  134. {

  135.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  136.     H264RawNALUnitHeader *header = nal_unit;

  137.     int err;

  138. 

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

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

  141.     if (err < 0) {

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

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

  144.         return err;

  145.     }

  146. 

  147.     return 0;

  148. }

  149. 

  150. static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,

  151.                                                    char *data, size_t *data_len)

  152. {

  153.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  155.     int err;

  156. 

  157.     if (priv->aud_needed) {

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

  159.         if (err < 0)

  160.             goto fail;

  161.         priv->aud_needed = 0;

  162.     }

  163. 

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

  165.     if (err < 0)

  166.         goto fail;

  167. 

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

  169.     if (err < 0)

  170.         goto fail;

  171. 

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

  173. fail:

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

  175.     return err;

  176. }

  177. 

  178. static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,

  179.                                                 VAAPIEncodePicture *pic,

  180.                                                 VAAPIEncodeSlice *slice,

  181.                                                 char *data, size_t *data_len)

  182. {

  183.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  185.     int err;

  186. 

  187.     if (priv->aud_needed) {

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

  189.         if (err < 0)

  190.             goto fail;

  191.         priv->aud_needed = 0;

  192.     }

  193. 

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

  195.     if (err < 0)

  196.         goto fail;

  197. 

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

  199. fail:

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

  201.     return err;

  202. }

  203. 

  204. static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,

  205.                                                 VAAPIEncodePicture *pic,

  206.                                                 int index, int *type,

  207.                                                 char *data, size_t *data_len)

  208. {

  209.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  211.     int err, i;

  212. 

  213.     if (priv->sei_needed) {

  214.         H264RawSEI *sei = &priv->raw_sei;

  215. 

  216.         if (priv->aud_needed) {

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

  218.             if (err < 0)

  219.                 goto fail;

  220.             priv->aud_needed = 0;

  221.         }

  222. 

  223.         *sei = (H264RawSEI) {

  224.             .nal_unit_header = {

  225.                 .nal_unit_type = H264_NAL_SEI,

  226.             },

  227.         };

  228. 

  229.         i = 0;

  230. 

  231.         if (priv->sei_needed & SEI_IDENTIFIER) {

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

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

  234.             ++i;

  235.         }

  236.         if (priv->sei_needed & SEI_TIMING) {

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

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

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

  240.                 ++i;

  241.             }

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

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

  244.             ++i;

  245.         }

  246.         if (priv->sei_needed & SEI_RECOVERY_POINT) {

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

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

  249.             ++i;

  250.         }

  251. 

  252.         sei->payload_count = i;

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

  254. 

  255.         err = vaapi_encode_h264_add_nal(avctx, au, sei);

  256.         if (err < 0)

  257.             goto fail;

  258.         priv->sei_needed = 0;

  259. 

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

  261.         if (err < 0)

  262.             goto fail;

  263. 

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

  265. 

  266.         *type = VAEncPackedHeaderRawData;

  267.         return 0;

  268. 

  269. #if !CONFIG_VAAPI_1

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

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

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

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

  274.         // driver and inserted into the stream.

  275.         *data_len = 0;

  276.         *type = VAEncPackedHeaderH264_SEI;

  277.         priv->sei_cbr_workaround_needed = 0;

  278.         return 0;

  279. #endif

  280. 

  281.     } else {

  282.         return AVERROR_EOF;

  283.     }

  284. 

  285. fail:

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

  287.     return err;

  288. }

  289. 

  290. static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)

  291. {

  292.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  293.     VAAPIEncodeH264Context           *priv = avctx->priv_data;

  294.     H264RawSPS                        *sps = &priv->raw_sps;

  295.     H264RawPPS                        *pps = &priv->raw_pps;

  296.     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;

  297.     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;

  298.     int dpb_frames;

  299. 

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

  301.            sizeof(priv->current_access_unit));

  302. 

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

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

  305. 

  306.     sps->nal_unit_header.nal_ref_idc   = 3;

  307.     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;

  308. 

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

  310. 

  311.     if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE ||

  312.         avctx->profile == FF_PROFILE_H264_MAIN)

  313.         sps->constraint_set1_flag = 1;

  314. 

  315.     if (avctx->profile == FF_PROFILE_H264_HIGH)

  316.         sps->constraint_set3_flag = ctx->gop_size == 1;

  317. 

  318.     if (avctx->profile == FF_PROFILE_H264_MAIN ||

  319.         avctx->profile == FF_PROFILE_H264_HIGH) {

  320.         sps->constraint_set4_flag = 1;

  321.         sps->constraint_set5_flag = ctx->b_per_p == 0;

  322.     }

  323. 

  324.     if (ctx->gop_size == 1)

  325.         dpb_frames = 0;

  326.     else

  327.         dpb_frames = 1 + (ctx->b_per_p > 0);

  328. 

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

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

  331.     } else {

  332.         const H264LevelDescriptor *level;

  333. 

  334.         level = ff_h264_guess_level(sps->profile_idc,

  335.                                     avctx->bit_rate,

  336.                                     priv->mb_width  * 16,

  337.                                     priv->mb_height * 16,

  338.                                     dpb_frames);

  339.         if (level) {

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

  341.             if (level->constraint_set3_flag)

  342.                 sps->constraint_set3_flag = 1;

  343.             sps->level_idc = level->level_idc;

  344.         } else {

  345.             av_log(avctx, AV_LOG_WARNING, "Stream will not conform "

  346.                    "to any level: using level 6.2.\n");

  347.             sps->level_idc = 62;

  348.         }

  349.     }

  350. 

  351.     sps->seq_parameter_set_id = 0;

  352.     sps->chroma_format_idc    = 1;

  353. 

  354.     sps->log2_max_frame_num_minus4 = 4;

  355.     sps->pic_order_cnt_type        = 0;

  356.     sps->log2_max_pic_order_cnt_lsb_minus4 =

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

  358. 

  359.     sps->max_num_ref_frames = dpb_frames;

  360. 

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

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

  363. 

  364.     sps->frame_mbs_only_flag = 1;

  365.     sps->direct_8x8_inference_flag = 1;

  366. 

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

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

  369.         sps->frame_cropping_flag = 1;

  370. 

  371.         sps->frame_crop_left_offset   = 0;

  372.         sps->frame_crop_right_offset  =

  373.             (16 * priv->mb_width - avctx->width) / 2;

  374.         sps->frame_crop_top_offset    = 0;

  375.         sps->frame_crop_bottom_offset =

  376.             (16 * priv->mb_height - avctx->height) / 2;

  377.     } else {

  378.         sps->frame_cropping_flag = 0;

  379.     }

  380. 

  381.     sps->vui_parameters_present_flag = 1;

  382. 

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

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

  385.         static const AVRational sar_idc[] = {

  386.             {   0,  0 },

  387.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  388.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  389.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  390.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  391.         };

  392.         int i;

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

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

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

  396.                 sps->vui.aspect_ratio_idc = i;

  397.                 break;

  398.             }

  399.         }

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

  401.             sps->vui.aspect_ratio_idc = 255;

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

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

  404.         }

  405.         sps->vui.aspect_ratio_info_present_flag = 1;

  406.     }

  407. 

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

  409.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  410.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  411.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  412.         sps->vui.video_signal_type_present_flag = 1;

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

  414.         sps->vui.video_full_range_flag =

  415.             avctx->color_range == AVCOL_RANGE_JPEG;

  416. 

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

  418.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  419.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  420.             sps->vui.colour_description_present_flag = 1;

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

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

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

  424.         }

  425.     } else {

  426.         sps->vui.video_format             = 5;

  427.         sps->vui.video_full_range_flag    = 0;

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

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

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

  431.     }

  432. 

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

  434.         sps->vui.chroma_loc_info_present_flag = 1;

  435.         sps->vui.chroma_sample_loc_type_top_field    =

  436.         sps->vui.chroma_sample_loc_type_bottom_field =

  437.             avctx->chroma_sample_location - 1;

  438.     }

  439. 

  440.     sps->vui.timing_info_present_flag = 1;

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

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

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

  444.         sps->vui.fixed_frame_rate_flag = 1;

  445.     } else {

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

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

  448.         sps->vui.fixed_frame_rate_flag = 0;

  449.     }

  450. 

  451.     if (priv->sei & SEI_TIMING) {

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

  453.         H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period;

  454. 

  455.         sps->vui.nal_hrd_parameters_present_flag = 1;

  456. 

  457.         hrd->cpb_cnt_minus1 = 0;

  458. 

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

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

  461.         hrd->bit_rate_scale =

  462.             av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4);

  463.         hrd->bit_rate_value_minus1[0] =

  464.             (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1;

  465. 

  466.         hrd->cpb_size_scale =

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

  468.         hrd->cpb_size_value_minus1[0] =

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

  470. 

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

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

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

  474. 

  475.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  476.         hrd->cpb_removal_delay_length_minus1         = 23;

  477.         hrd->dpb_output_delay_length_minus1          = 7;

  478.         hrd->time_offset_length                      = 0;

  479. 

  480.         bp->seq_parameter_set_id = sps->seq_parameter_set_id;

  481. 

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

  483.         bp->nal.initial_cpb_removal_delay[0] = 90000 *

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

  485.             ctx->hrd_params.hrd.buffer_size;

  486.         bp->nal.initial_cpb_removal_delay_offset[0] = 0;

  487.     } else {

  488.         sps->vui.nal_hrd_parameters_present_flag = 0;

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

  490.     }

  491. 

  492.     sps->vui.bitstream_restriction_flag    = 1;

  493.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  494.     sps->vui.log2_max_mv_length_horizontal = 15;

  495.     sps->vui.log2_max_mv_length_vertical   = 15;

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

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

  498. 

  499.     pps->nal_unit_header.nal_ref_idc = 3;

  500.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  501. 

  502.     pps->pic_parameter_set_id = 0;

  503.     pps->seq_parameter_set_id = 0;

  504. 

  505.     pps->entropy_coding_mode_flag =

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

  507.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  508.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

  509.     if (!priv->coder && pps->entropy_coding_mode_flag)

  510.         pps->entropy_coding_mode_flag = 0;

  511. 

  512.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  513.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  514. 

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

  516. 

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

  518.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  519.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  520.         pps->more_rbsp_data = 0;

  521.     } else {

  522.         pps->more_rbsp_data = 1;

  523. 

  524.         pps->transform_8x8_mode_flag = 1;

  525.     }

  526. 

  527.     *vseq = (VAEncSequenceParameterBufferH264) {

  528.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  529.         .level_idc        = sps->level_idc,

  530.         .intra_period     = ctx->gop_size,

  531.         .intra_idr_period = ctx->gop_size,

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

  533. 

  534.         .bits_per_second       = ctx->va_bit_rate,

  535.         .max_num_ref_frames    = sps->max_num_ref_frames,

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

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

  538. 

  539.         .seq_fields.bits = {

  540.             .chroma_format_idc                 = sps->chroma_format_idc,

  541.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  542.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  543.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  544.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  545.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  546.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  547.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  548.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  549.         },

  550. 

  551.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  552.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  553. 

  554.         .frame_cropping_flag      = sps->frame_cropping_flag,

  555.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  556.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  557.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  558.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  559. 

  560.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  561. 

  562.         .vui_fields.bits = {

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

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

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

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

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

  568.         },

  569. 

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

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

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

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

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

  575.     };

  576. 

  577.     *vpic = (VAEncPictureParameterBufferH264) {

  578.         .CurrPic = {

  579.             .picture_id = VA_INVALID_ID,

  580.             .flags      = VA_PICTURE_H264_INVALID,

  581.         },

  582. 

  583.         .coded_buf = VA_INVALID_ID,

  584. 

  585.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  586.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  587. 

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

  589.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  590.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  591. 

  592.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  593.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  594. 

  595.         .pic_fields.bits = {

  596.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  597.             .weighted_pred_flag              = pps->weighted_pred_flag,

  598.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  599.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  600.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  601.             .deblocking_filter_control_present_flag =

  602.                 pps->deblocking_filter_control_present_flag,

  603.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  604.             .pic_order_present_flag          =

  605.                 pps->bottom_field_pic_order_in_frame_present_flag,

  606.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  607.         },

  608.     };

  609. 

  610.     return 0;

  611. }

  612. 

  613. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  614.                                                  VAAPIEncodePicture *pic)

  615. {

  616.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  617.     VAAPIEncodeH264Context          *priv = avctx->priv_data;

  618.     H264RawSPS                       *sps = &priv->raw_sps;

  619.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  620.     int i;

  621. 

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

  623.            sizeof(priv->current_access_unit));

  624. 

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

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

  627.         priv->frame_num      = 0;

  628.         priv->next_frame_num = 1;

  629.         priv->cpb_delay      = 0;

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

  631.         ++priv->idr_pic_count;

  632. 

  633.         priv->slice_type       = 7;

  634.         priv->primary_pic_type = 0;

  635.     } else {

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

  637. 

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

  639.             // Reference picture, so frame_num advances.

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

  641.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  642.         }

  643.         ++priv->cpb_delay;

  644. 

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

  646.             priv->slice_type       = 7;

  647.             priv->primary_pic_type = 0;

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

  649.             priv->slice_type       = 5;

  650.             priv->primary_pic_type = 1;

  651.         } else {

  652.             priv->slice_type       = 6;

  653.             priv->primary_pic_type = 2;

  654.         }

  655.     }

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

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

  658. 

  659.     if (priv->aud) {

  660.         priv->aud_needed = 1;

  661.         priv->raw_aud = (H264RawAUD) {

  662.             .nal_unit_header = {

  663.                 .nal_unit_type = H264_NAL_AUD,

  664.             },

  665.             .primary_pic_type  = priv->primary_pic_type,

  666.         };

  667.     } else {

  668.         priv->aud_needed = 0;

  669.     }

  670. 

  671.     priv->sei_needed = 0;

  672. 

  673.     if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)

  674.         priv->sei_needed |= SEI_IDENTIFIER;

  675. #if !CONFIG_VAAPI_1

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

  677.         priv->sei_cbr_workaround_needed = 1;

  678. #endif

  679. 

  680.     if (priv->sei & SEI_TIMING) {

  681.         priv->sei_pic_timing = (H264RawSEIPicTiming) {

  682.             .cpb_removal_delay = 2 * priv->cpb_delay,

  683.             .dpb_output_delay  = 2 * priv->dpb_delay,

  684.         };

  685. 

  686.         priv->sei_needed |= SEI_TIMING;

  687.     }

  688. 

  689.     if (priv->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {

  690.         priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {

  691.             .recovery_frame_cnt = 0,

  692.             .exact_match_flag   = 1,

  693.             .broken_link_flag   = ctx->b_per_p > 0,

  694.         };

  695. 

  696.         priv->sei_needed |= SEI_RECOVERY_POINT;

  697.     }

  698. 

  699.     vpic->CurrPic = (VAPictureH264) {

  700.         .picture_id          = pic->recon_surface,

  701.         .frame_idx           = priv->frame_num,

  702.         .flags               = 0,

  703.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  704.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  705.     };

  706. 

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

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

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

  710.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

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

  712. 

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

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

  715.             .picture_id          = ref->recon_surface,

  716.             .frame_idx           = frame_num,

  717.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  718.             .TopFieldOrderCnt    = pic_order_cnt,

  719.             .BottomFieldOrderCnt = pic_order_cnt,

  720.         };

  721.     }

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

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

  724.             .picture_id = VA_INVALID_ID,

  725.             .flags      = VA_PICTURE_H264_INVALID,

  726.         };

  727.     }

  728. 

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

  730. 

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

  732. 

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

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

  735. 

  736.     pic->nb_slices = 1;

  737. 

  738.     return 0;

  739. }

  740. 

  741. static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,

  742.                                                VAAPIEncodePicture *pic,

  743.                                                VAAPIEncodeSlice *slice)

  744. {

  745.     VAAPIEncodeH264Context          *priv = avctx->priv_data;

  746.     H264RawSPS                       *sps = &priv->raw_sps;

  747.     H264RawPPS                       *pps = &priv->raw_pps;

  748.     H264RawSliceHeader                *sh = &priv->raw_slice.header;

  749.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  750.     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;

  751.     int i;

  752. 

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

  754.         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;

  755.         sh->nal_unit_header.nal_ref_idc   = 3;

  756.     } else {

  757.         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;

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

  759.     }

  760. 

  761.     // Only one slice per frame.

  762.     sh->first_mb_in_slice = 0;

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

  764. 

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

  766. 

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

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

  769. 

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

  771.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  772. 

  773.     sh->direct_spatial_mv_pred_flag = 1;

  774. 

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

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

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

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

  779.     else

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

  781. 

  782. 

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

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

  785. 

  786.     vslice->macroblock_info = VA_INVALID_ID;

  787. 

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

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

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

  791. 

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

  793. 

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

  795. 

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

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

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

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

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

  801.     }

  802. 

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

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

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

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

  807.                    pic->type == PICTURE_TYPE_B);

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

  809.     }

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

  811.         // Forward reference for B-frame.

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

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

  814.     }

  815. 

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

  817. 

  818.     return 0;

  819. }

  820. 

  821. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  822. {

  823.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  824.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  825.     int err;

  826. 

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

  828.     if (err < 0)

  829.         return err;

  830. 

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

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

  833. 

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

  835.         priv->fixed_qp_p = priv->qp;

  836.         if (avctx->i_quant_factor > 0.0)

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

  838.                                         avctx->i_quant_offset) + 0.5);

  839.         else

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

  841.         if (avctx->b_quant_factor > 0.0)

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

  843.                                       avctx->b_quant_offset) + 0.5);

  844.         else

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

  846. 

  847.         priv->sei &= ~SEI_TIMING;

  848. 

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

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

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

  852. 

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

  854.                ctx->va_rc_mode == VA_RC_VBR) {

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

  856.         priv->fixed_qp_idr = 26;

  857.         priv->fixed_qp_p   = 26;

  858.         priv->fixed_qp_b   = 26;

  859. 

  860.     } else {

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

  862.     }

  863. 

  864.     if (priv->sei & SEI_IDENTIFIER) {

  865.         const char *lavc  = LIBAVCODEC_IDENT;

  866.         const char *vaapi = VA_VERSION_S;

  867.         const char *driver;

  868.         int len;

  869. 

  870.         memcpy(priv->sei_identifier.uuid_iso_iec_11578,

  871.                vaapi_encode_h264_sei_identifier_uuid,

  872.                sizeof(priv->sei_identifier.uuid_iso_iec_11578));

  873. 

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

  875.         if (!driver)

  876.             driver = "unknown driver";

  877. 

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

  879.         if (len >= 0) {

  880.             priv->sei_identifier_string = av_malloc(len + 1);

  881.             if (!priv->sei_identifier_string)

  882.                 return AVERROR(ENOMEM);

  883. 

  884.             snprintf(priv->sei_identifier_string, len + 1,

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

  886. 

  887.             priv->sei_identifier.data        = priv->sei_identifier_string;

  888.             priv->sei_identifier.data_length = len + 1;

  889.         }

  890.     }

  891. 

  892.     return 0;

  893. }

  894. 

  895. static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {

  896.     { FF_PROFILE_H264_HIGH, 8, 3, 1, 1, VAProfileH264High },

  897.     { FF_PROFILE_H264_MAIN, 8, 3, 1, 1, VAProfileH264Main },

  898.     { FF_PROFILE_H264_CONSTRAINED_BASELINE,

  899.                             8, 3, 1, 1, VAProfileH264ConstrainedBaseline },

  900.     { FF_PROFILE_UNKNOWN }

  901. };

  902. 

  903. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  904.     .profiles              = vaapi_encode_h264_profiles,

  905. 

  906.     .configure             = &vaapi_encode_h264_configure,

  907. 

  908.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  909.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  910. 

  911.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  912.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  913. 

  914.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  915.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  916. 

  917.     .sequence_header_type  = VAEncPackedHeaderSequence,

  918.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  919. 

  920.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  921.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  922. 

  923.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  924. };

  925. 

  926. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  927. {

  928.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  929.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  930. 

  931.     ctx->codec = &vaapi_encode_type_h264;

  932. 

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

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

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

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

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

  938.         avctx->compression_level = priv->quality;

  939. 

  940.     // Reject unsupported profiles.

  941.     switch (avctx->profile) {

  942.     case FF_PROFILE_H264_BASELINE:

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

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

  945.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  946.         break;

  947.     case FF_PROFILE_H264_EXTENDED:

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

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

  950.         return AVERROR_PATCHWELCOME;

  951.     case FF_PROFILE_H264_HIGH_10:

  952.     case FF_PROFILE_H264_HIGH_10_INTRA:

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

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

  955.         return AVERROR_PATCHWELCOME;

  956.     case FF_PROFILE_H264_HIGH_422:

  957.     case FF_PROFILE_H264_HIGH_422_INTRA:

  958.     case FF_PROFILE_H264_HIGH_444:

  959.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  960.     case FF_PROFILE_H264_HIGH_444_INTRA:

  961.     case FF_PROFILE_H264_CAVLC_444:

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

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

  964.         return AVERROR_PATCHWELCOME;

  965.     }

  966. 

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

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

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

  970.         return AVERROR(EINVAL);

  971.     }

  972. 

  973.     ctx->desired_packed_headers =

  974.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  975.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  976.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  977. 

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

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

  980. 

  981.     return ff_vaapi_encode_init(avctx);

  982. }

  983. 

  984. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  985. {

  986.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  987. 

  988.     ff_cbs_close(&priv->cbc);

  989.     av_freep(&priv->sei_identifier_string);

  990. 

  991.     return ff_vaapi_encode_close(avctx);

  992. }

  993. 

  994. #define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)

  995. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  996. static const AVOption vaapi_encode_h264_options[] = {

  997.     VAAPI_ENCODE_COMMON_OPTIONS,

  998. 

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

  1000.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },

  1001.     { "quality", "Set encode quality (trades off against speed, higher is faster)",

  1002.       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },

  1003.     { "coder", "Entropy coder type",

  1004.       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },

  1005.         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1006.         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1007.         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1008.         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1009. 

  1010.     { "aud", "Include AUD",

  1011.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1012. 

  1013.     { "sei", "Set SEI to include",

  1014.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1015.       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },

  1016.       0, INT_MAX, FLAGS, "sei" },

  1017.     { "identifier", "Include encoder version identifier",

  1018.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },

  1019.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1020.     { "timing", "Include timing parameters (buffering_period and pic_timing)",

  1021.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },

  1022.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1023.     { "recovery_point", "Include recovery points where appropriate",

  1024.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

  1025.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1026. 

  1027.     { "profile", "Set profile (profile_idc and constraint_set*_flag)",

  1028.       OFFSET(profile), AV_OPT_TYPE_INT,

  1029.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, FLAGS, "profile" },

  1030. 

  1031. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1032.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1033.     { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },

  1034.     { PROFILE("main",                 FF_PROFILE_H264_MAIN) },

  1035.     { PROFILE("high",                 FF_PROFILE_H264_HIGH) },

  1036. #undef PROFILE

  1037. 

  1038.     { "level", "Set level (level_idc)",

  1039.       OFFSET(level), AV_OPT_TYPE_INT,

  1040.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1041. 

  1042. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1043.       { .i64 = value }, 0, 0, FLAGS, "level"

  1044.     { LEVEL("1",   10) },

  1045.     { LEVEL("1.1", 11) },

  1046.     { LEVEL("1.2", 12) },

  1047.     { LEVEL("1.3", 13) },

  1048.     { LEVEL("2",   20) },

  1049.     { LEVEL("2.1", 21) },

  1050.     { LEVEL("2.2", 22) },

  1051.     { LEVEL("3",   30) },

  1052.     { LEVEL("3.1", 31) },

  1053.     { LEVEL("3.2", 32) },

  1054.     { LEVEL("4",   40) },

  1055.     { LEVEL("4.1", 41) },

  1056.     { LEVEL("4.2", 42) },

  1057.     { LEVEL("5",   50) },

  1058.     { LEVEL("5.1", 51) },

  1059.     { LEVEL("5.2", 52) },

  1060.     { LEVEL("6",   60) },

  1061.     { LEVEL("6.1", 61) },

  1062.     { LEVEL("6.2", 62) },

  1063. #undef LEVEL

  1064. 

  1065.     { NULL },

  1066. };

  1067. 

  1068. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  1069.     { "b",              "0"   },

  1070.     { "bf",             "2"   },

  1071.     { "g",              "120" },

  1072.     { "i_qfactor",      "1"   },

  1073.     { "i_qoffset",      "0"   },

  1074.     { "b_qfactor",      "6/5" },

  1075.     { "b_qoffset",      "0"   },

  1076.     { "qmin",           "-1"  },

  1077.     { "qmax",           "-1"  },

  1078.     { NULL },

  1079. };

  1080. 

  1081. static const AVClass vaapi_encode_h264_class = {

  1082.     .class_name = "h264_vaapi",

  1083.     .item_name  = av_default_item_name,

  1084.     .option     = vaapi_encode_h264_options,

  1085.     .version    = LIBAVUTIL_VERSION_INT,

  1086. };

  1087. 

  1088. AVCodec ff_h264_vaapi_encoder = {

  1089.     .name           = "h264_vaapi",

  1090.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1091.     .type           = AVMEDIA_TYPE_VIDEO,

  1092.     .id             = AV_CODEC_ID_H264,

  1093.     .priv_data_size = sizeof(VAAPIEncodeH264Context),

  1094.     .init           = &vaapi_encode_h264_init,

  1095.     .encode2        = &ff_vaapi_encode2,

  1096.     .close          = &vaapi_encode_h264_close,

  1097.     .priv_class     = &vaapi_encode_h264_class,

  1098.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1099.     .defaults       = vaapi_encode_h264_defaults,

  1100.     .pix_fmts = (const enum AVPixelFormat[]) {

  1101.         AV_PIX_FMT_VAAPI,

  1102.         AV_PIX_FMT_NONE,

  1103.     },

  1104.     .wrapper_name   = "vaapi",

  1105. };