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FFmpeg/libavcodec/vaapi_encode_h264.c

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  1. /*

  2.  * This file is part of FFmpeg.

  3.  *

  4.  * FFmpeg is free software; you can redistribute it and/or

  5.  * modify it under the terms of the GNU Lesser General Public

  6.  * License as published by the Free Software Foundation; either

  7.  * version 2.1 of the License, or (at your option) any later version.

  8.  *

  9.  * FFmpeg is distributed in the hope that it will be useful,

  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  12.  * Lesser General Public License for more details.

  13.  *

  14.  * You should have received a copy of the GNU Lesser General Public

  15.  * License along with FFmpeg; if not, write to the Free Software

  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  17.  */

  18. 

  19. #include <string.h>

  20. 

  21. #include <va/va.h>

  22. #include <va/va_enc_h264.h>

  23. 

  24. #include "libavutil/avassert.h"

  25. #include "libavutil/common.h"

  26. #include "libavutil/internal.h"

  27. #include "libavutil/opt.h"

  28. 

  29. #include "avcodec.h"

  30. #include "cbs.h"

  31. #include "cbs_h264.h"

  32. #include "h264.h"

  33. #include "h264_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 num, den, i;

  393.         av_reduce(&num, &den, avctx->sample_aspect_ratio.num,

  394.                   avctx->sample_aspect_ratio.den, 65535);

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

  396.             if (num == sar_idc[i].num &&

  397.                 den == sar_idc[i].den) {

  398.                 sps->vui.aspect_ratio_idc = i;

  399.                 break;

  400.             }

  401.         }

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

  403.             sps->vui.aspect_ratio_idc = 255;

  404.             sps->vui.sar_width  = num;

  405.             sps->vui.sar_height = den;

  406.         }

  407.         sps->vui.aspect_ratio_info_present_flag = 1;

  408.     }

  409. 

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

  411.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  412.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  413.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  414.         sps->vui.video_signal_type_present_flag = 1;

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

  416.         sps->vui.video_full_range_flag =

  417.             avctx->color_range == AVCOL_RANGE_JPEG;

  418. 

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

  420.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  421.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  422.             sps->vui.colour_description_present_flag = 1;

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

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

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

  426.         }

  427.     } else {

  428.         sps->vui.video_format             = 5;

  429.         sps->vui.video_full_range_flag    = 0;

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

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

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

  433.     }

  434. 

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

  436.         sps->vui.chroma_loc_info_present_flag = 1;

  437.         sps->vui.chroma_sample_loc_type_top_field    =

  438.         sps->vui.chroma_sample_loc_type_bottom_field =

  439.             avctx->chroma_sample_location - 1;

  440.     }

  441. 

  442.     sps->vui.timing_info_present_flag = 1;

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

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

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

  446.         sps->vui.fixed_frame_rate_flag = 1;

  447.     } else {

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

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

  450.         sps->vui.fixed_frame_rate_flag = 0;

  451.     }

  452. 

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

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

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

  456. 

  457.         sps->vui.nal_hrd_parameters_present_flag = 1;

  458. 

  459.         hrd->cpb_cnt_minus1 = 0;

  460. 

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

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

  463.         hrd->bit_rate_scale =

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

  465.         hrd->bit_rate_value_minus1[0] =

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

  467. 

  468.         hrd->cpb_size_scale =

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

  470.         hrd->cpb_size_value_minus1[0] =

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

  472. 

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

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

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

  476. 

  477.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  478.         hrd->cpb_removal_delay_length_minus1         = 23;

  479.         hrd->dpb_output_delay_length_minus1          = 7;

  480.         hrd->time_offset_length                      = 0;

  481. 

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

  483. 

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

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

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

  487.             ctx->hrd_params.hrd.buffer_size;

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

  489.     } else {

  490.         sps->vui.nal_hrd_parameters_present_flag = 0;

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

  492.     }

  493. 

  494.     sps->vui.bitstream_restriction_flag    = 1;

  495.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  496.     sps->vui.log2_max_mv_length_horizontal = 15;

  497.     sps->vui.log2_max_mv_length_vertical   = 15;

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

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

  500. 

  501.     pps->nal_unit_header.nal_ref_idc = 3;

  502.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  503. 

  504.     pps->pic_parameter_set_id = 0;

  505.     pps->seq_parameter_set_id = 0;

  506. 

  507.     pps->entropy_coding_mode_flag =

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

  509.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  510.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

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

  512.         pps->entropy_coding_mode_flag = 0;

  513. 

  514.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  515.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  516. 

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

  518. 

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

  520.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  521.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  522.         pps->more_rbsp_data = 0;

  523.     } else {

  524.         pps->more_rbsp_data = 1;

  525. 

  526.         pps->transform_8x8_mode_flag = 1;

  527.     }

  528. 

  529.     *vseq = (VAEncSequenceParameterBufferH264) {

  530.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  531.         .level_idc        = sps->level_idc,

  532.         .intra_period     = ctx->gop_size,

  533.         .intra_idr_period = ctx->gop_size,

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

  535. 

  536.         .bits_per_second       = ctx->va_bit_rate,

  537.         .max_num_ref_frames    = sps->max_num_ref_frames,

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

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

  540. 

  541.         .seq_fields.bits = {

  542.             .chroma_format_idc                 = sps->chroma_format_idc,

  543.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  544.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  545.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  546.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  547.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  548.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  549.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  550.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  551.         },

  552. 

  553.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  554.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  555. 

  556.         .frame_cropping_flag      = sps->frame_cropping_flag,

  557.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  558.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  559.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  560.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  561. 

  562.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  563. 

  564.         .vui_fields.bits = {

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

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

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

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

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

  570.         },

  571. 

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

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

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

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

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

  577.     };

  578. 

  579.     *vpic = (VAEncPictureParameterBufferH264) {

  580.         .CurrPic = {

  581.             .picture_id = VA_INVALID_ID,

  582.             .flags      = VA_PICTURE_H264_INVALID,

  583.         },

  584. 

  585.         .coded_buf = VA_INVALID_ID,

  586. 

  587.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  588.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  589. 

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

  591.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  592.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  593. 

  594.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  595.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  596. 

  597.         .pic_fields.bits = {

  598.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  599.             .weighted_pred_flag              = pps->weighted_pred_flag,

  600.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  601.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  602.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  603.             .deblocking_filter_control_present_flag =

  604.                 pps->deblocking_filter_control_present_flag,

  605.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  606.             .pic_order_present_flag          =

  607.                 pps->bottom_field_pic_order_in_frame_present_flag,

  608.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  609.         },

  610.     };

  611. 

  612.     return 0;

  613. }

  614. 

  615. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  616.                                                  VAAPIEncodePicture *pic)

  617. {

  618.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  619.     VAAPIEncodeH264Context          *priv = avctx->priv_data;

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

  621.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  622.     int i;

  623. 

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

  625.            sizeof(priv->current_access_unit));

  626. 

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

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

  629.         priv->frame_num      = 0;

  630.         priv->next_frame_num = 1;

  631.         priv->cpb_delay      = 0;

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

  633.         ++priv->idr_pic_count;

  634. 

  635.         priv->slice_type       = 7;

  636.         priv->primary_pic_type = 0;

  637.     } else {

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

  639. 

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

  641.             // Reference picture, so frame_num advances.

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

  643.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  644.         }

  645.         ++priv->cpb_delay;

  646. 

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

  648.             priv->slice_type       = 7;

  649.             priv->primary_pic_type = 0;

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

  651.             priv->slice_type       = 5;

  652.             priv->primary_pic_type = 1;

  653.         } else {

  654.             priv->slice_type       = 6;

  655.             priv->primary_pic_type = 2;

  656.         }

  657.     }

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

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

  660. 

  661.     if (priv->aud) {

  662.         priv->aud_needed = 1;

  663.         priv->raw_aud = (H264RawAUD) {

  664.             .nal_unit_header = {

  665.                 .nal_unit_type = H264_NAL_AUD,

  666.             },

  667.             .primary_pic_type  = priv->primary_pic_type,

  668.         };

  669.     } else {

  670.         priv->aud_needed = 0;

  671.     }

  672. 

  673.     priv->sei_needed = 0;

  674. 

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

  676.         priv->sei_needed |= SEI_IDENTIFIER;

  677. #if !CONFIG_VAAPI_1

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

  679.         priv->sei_cbr_workaround_needed = 1;

  680. #endif

  681. 

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

  683.         priv->sei_pic_timing = (H264RawSEIPicTiming) {

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

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

  686.         };

  687. 

  688.         priv->sei_needed |= SEI_TIMING;

  689.     }

  690. 

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

  692.         priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {

  693.             .recovery_frame_cnt = 0,

  694.             .exact_match_flag   = 1,

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

  696.         };

  697. 

  698.         priv->sei_needed |= SEI_RECOVERY_POINT;

  699.     }

  700. 

  701.     vpic->CurrPic = (VAPictureH264) {

  702.         .picture_id          = pic->recon_surface,

  703.         .frame_idx           = priv->frame_num,

  704.         .flags               = 0,

  705.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  706.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  707.     };

  708. 

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

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

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

  712.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

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

  714. 

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

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

  717.             .picture_id          = ref->recon_surface,

  718.             .frame_idx           = frame_num,

  719.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  720.             .TopFieldOrderCnt    = pic_order_cnt,

  721.             .BottomFieldOrderCnt = pic_order_cnt,

  722.         };

  723.     }

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

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

  726.             .picture_id = VA_INVALID_ID,

  727.             .flags      = VA_PICTURE_H264_INVALID,

  728.         };

  729.     }

  730. 

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

  732. 

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

  734. 

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

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

  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.     sh->first_mb_in_slice = slice->block_start;

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

  763. 

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

  765. 

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

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

  768. 

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

  770.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  771. 

  772.     sh->direct_spatial_mv_pred_flag = 1;

  773. 

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

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

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

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

  778.     else

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

  780. 

  781. 

  782.     vslice->macroblock_address = slice->block_start;

  783.     vslice->num_macroblocks    = slice->block_size;

  784. 

  785.     vslice->macroblock_info = VA_INVALID_ID;

  786. 

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

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

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

  790. 

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

  792. 

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

  794. 

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

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

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

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

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

  800.     }

  801. 

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

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

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

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

  806.                    pic->type == PICTURE_TYPE_B);

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

  808.     }

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

  810.         // Forward reference for B-frame.

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

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

  813.     }

  814. 

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

  816. 

  817.     return 0;

  818. }

  819. 

  820. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  821. {

  822.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  823.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  824.     int err;

  825. 

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

  827.     if (err < 0)

  828.         return err;

  829. 

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

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

  832. 

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

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

  835.         if (avctx->i_quant_factor > 0.0)

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

  837.                                         avctx->i_quant_offset) + 0.5);

  838.         else

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

  840.         if (avctx->b_quant_factor > 0.0)

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

  842.                                       avctx->b_quant_offset) + 0.5);

  843.         else

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

  845. 

  846.         priv->sei &= ~SEI_TIMING;

  847. 

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

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

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

  851. 

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

  853.                ctx->va_rc_mode == VA_RC_VBR) {

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

  855.         priv->fixed_qp_idr = 26;

  856.         priv->fixed_qp_p   = 26;

  857.         priv->fixed_qp_b   = 26;

  858. 

  859.     } else {

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

  861.     }

  862. 

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

  864.         const char *lavc  = LIBAVCODEC_IDENT;

  865.         const char *vaapi = VA_VERSION_S;

  866.         const char *driver;

  867.         int len;

  868. 

  869.         memcpy(priv->sei_identifier.uuid_iso_iec_11578,

  870.                vaapi_encode_h264_sei_identifier_uuid,

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

  872. 

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

  874.         if (!driver)

  875.             driver = "unknown driver";

  876. 

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

  878.         if (len >= 0) {

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

  880.             if (!priv->sei_identifier_string)

  881.                 return AVERROR(ENOMEM);

  882. 

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

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

  885. 

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

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

  888.         }

  889.     }

  890. 

  891.     return 0;

  892. }

  893. 

  894. static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {

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

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

  897.     { FF_PROFILE_H264_CONSTRAINED_BASELINE,

  898.                             8, 3, 1, 1, VAProfileH264ConstrainedBaseline },

  899.     { FF_PROFILE_UNKNOWN }

  900. };

  901. 

  902. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  903.     .profiles              = vaapi_encode_h264_profiles,

  904. 

  905.     .flags                 = FLAG_SLICE_CONTROL |

  906.                              FLAG_B_PICTURES |

  907.                              FLAG_NON_IDR_KEY_PICTURES,

  908. 

  909.     .configure             = &vaapi_encode_h264_configure,

  910. 

  911.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  912.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  913. 

  914.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  915.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  916. 

  917.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  918.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  919. 

  920.     .sequence_header_type  = VAEncPackedHeaderSequence,

  921.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  922. 

  923.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  924.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  925. 

  926.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  927. };

  928. 

  929. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  930. {

  931.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  932.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  933. 

  934.     ctx->codec = &vaapi_encode_type_h264;

  935. 

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

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

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

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

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

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

  942. 

  943.     // Reject unsupported profiles.

  944.     switch (avctx->profile) {

  945.     case FF_PROFILE_H264_BASELINE:

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

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

  948.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  949.         break;

  950.     case FF_PROFILE_H264_EXTENDED:

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

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

  953.         return AVERROR_PATCHWELCOME;

  954.     case FF_PROFILE_H264_HIGH_10:

  955.     case FF_PROFILE_H264_HIGH_10_INTRA:

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

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

  958.         return AVERROR_PATCHWELCOME;

  959.     case FF_PROFILE_H264_HIGH_422:

  960.     case FF_PROFILE_H264_HIGH_422_INTRA:

  961.     case FF_PROFILE_H264_HIGH_444:

  962.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  963.     case FF_PROFILE_H264_HIGH_444_INTRA:

  964.     case FF_PROFILE_H264_CAVLC_444:

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

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

  967.         return AVERROR_PATCHWELCOME;

  968.     }

  969. 

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

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

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

  973.         return AVERROR(EINVAL);

  974.     }

  975. 

  976.     ctx->desired_packed_headers =

  977.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  978.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  979.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  980. 

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

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

  983. 

  984.     ctx->slice_block_height = ctx->slice_block_width = 16;

  985. 

  986.     return ff_vaapi_encode_init(avctx);

  987. }

  988. 

  989. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  990. {

  991.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  992. 

  993.     ff_cbs_close(&priv->cbc);

  994.     av_freep(&priv->sei_identifier_string);

  995. 

  996.     return ff_vaapi_encode_close(avctx);

  997. }

  998. 

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

  1000. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  1001. static const AVOption vaapi_encode_h264_options[] = {

  1002.     VAAPI_ENCODE_COMMON_OPTIONS,

  1003. 

  1004.     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

  1005.       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },

  1006.     { "quality", "Set encode quality (trades off against speed, higher is faster)",

  1007.       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },

  1008.     { "coder", "Entropy coder type",

  1009.       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },

  1010.         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1011.         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1012.         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1013.         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },

  1014. 

  1015.     { "aud", "Include AUD",

  1016.       OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },

  1017. 

  1018.     { "sei", "Set SEI to include",

  1019.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

  1020.       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },

  1021.       0, INT_MAX, FLAGS, "sei" },

  1022.     { "identifier", "Include encoder version identifier",

  1023.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },

  1024.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1025.     { "timing", "Include timing parameters (buffering_period and pic_timing)",

  1026.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },

  1027.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1028.     { "recovery_point", "Include recovery points where appropriate",

  1029.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

  1030.       INT_MIN, INT_MAX, FLAGS, "sei" },

  1031. 

  1032.     { "profile", "Set profile (profile_idc and constraint_set*_flag)",

  1033.       OFFSET(profile), AV_OPT_TYPE_INT,

  1034.       { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, FLAGS, "profile" },

  1035. 

  1036. #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \

  1037.       { .i64 = value }, 0, 0, FLAGS, "profile"

  1038.     { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },

  1039.     { PROFILE("main",                 FF_PROFILE_H264_MAIN) },

  1040.     { PROFILE("high",                 FF_PROFILE_H264_HIGH) },

  1041. #undef PROFILE

  1042. 

  1043.     { "level", "Set level (level_idc)",

  1044.       OFFSET(level), AV_OPT_TYPE_INT,

  1045.       { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },

  1046. 

  1047. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1048.       { .i64 = value }, 0, 0, FLAGS, "level"

  1049.     { LEVEL("1",   10) },

  1050.     { LEVEL("1.1", 11) },

  1051.     { LEVEL("1.2", 12) },

  1052.     { LEVEL("1.3", 13) },

  1053.     { LEVEL("2",   20) },

  1054.     { LEVEL("2.1", 21) },

  1055.     { LEVEL("2.2", 22) },

  1056.     { LEVEL("3",   30) },

  1057.     { LEVEL("3.1", 31) },

  1058.     { LEVEL("3.2", 32) },

  1059.     { LEVEL("4",   40) },

  1060.     { LEVEL("4.1", 41) },

  1061.     { LEVEL("4.2", 42) },

  1062.     { LEVEL("5",   50) },

  1063.     { LEVEL("5.1", 51) },

  1064.     { LEVEL("5.2", 52) },

  1065.     { LEVEL("6",   60) },

  1066.     { LEVEL("6.1", 61) },

  1067.     { LEVEL("6.2", 62) },

  1068. #undef LEVEL

  1069. 

  1070.     { NULL },

  1071. };

  1072. 

  1073. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  1074.     { "b",              "0"   },

  1075.     { "bf",             "2"   },

  1076.     { "g",              "120" },

  1077.     { "i_qfactor",      "1"   },

  1078.     { "i_qoffset",      "0"   },

  1079.     { "b_qfactor",      "6/5" },

  1080.     { "b_qoffset",      "0"   },

  1081.     { "qmin",           "-1"  },

  1082.     { "qmax",           "-1"  },

  1083.     { NULL },

  1084. };

  1085. 

  1086. static const AVClass vaapi_encode_h264_class = {

  1087.     .class_name = "h264_vaapi",

  1088.     .item_name  = av_default_item_name,

  1089.     .option     = vaapi_encode_h264_options,

  1090.     .version    = LIBAVUTIL_VERSION_INT,

  1091. };

  1092. 

  1093. AVCodec ff_h264_vaapi_encoder = {

  1094.     .name           = "h264_vaapi",

  1095.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1096.     .type           = AVMEDIA_TYPE_VIDEO,

  1097.     .id             = AV_CODEC_ID_H264,

  1098.     .priv_data_size = sizeof(VAAPIEncodeH264Context),

  1099.     .init           = &vaapi_encode_h264_init,

  1100.     .send_frame     = &ff_vaapi_encode_send_frame,

  1101.     .receive_packet = &ff_vaapi_encode_receive_packet,

  1102.     .close          = &vaapi_encode_h264_close,

  1103.     .priv_class     = &vaapi_encode_h264_class,

  1104.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1105.     .defaults       = vaapi_encode_h264_defaults,

  1106.     .pix_fmts = (const enum AVPixelFormat[]) {

  1107.         AV_PIX_FMT_VAAPI,

  1108.         AV_PIX_FMT_NONE,

  1109.     },

  1110.     .wrapper_name   = "vaapi",

  1111. };