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FFmpeg/libavcodec/vaapi_encode_h264.c

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  1. /*

  2.  * This file is part of FFmpeg.

  3.  *

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

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

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

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

  8.  *

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

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

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

  12.  * Lesser General Public License for more details.

  13.  *

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

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

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

  17.  */

  18. 

  19. #include <string.h>

  20. 

  21. #include <va/va.h>

  22. #include <va/va_enc_h264.h>

  23. 

  24. #include "libavutil/avassert.h"

  25. #include "libavutil/common.h"

  26. #include "libavutil/internal.h"

  27. #include "libavutil/opt.h"

  28. 

  29. #include "avcodec.h"

  30. #include "cbs.h"

  31. #include "cbs_h264.h"

  32. #include "h264.h"

  33. #include "h264_sei.h"

  34. #include "internal.h"

  35. #include "vaapi_encode.h"

  36. 

  37. enum {

  38.     SEI_TIMING         = 0x01,

  39.     SEI_IDENTIFIER     = 0x02,

  40.     SEI_RECOVERY_POINT = 0x04,

  41. };

  42. 

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

  44. static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {

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

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

  47. };

  48. 

  49. typedef struct VAAPIEncodeH264Context {

  50.     VAAPIEncodeContext common;

  51. 

  52.     // User options.

  53.     int qp;

  54.     int quality;

  55.     int coder;

  56.     int aud;

  57.     int sei;

  58.     int profile;

  59.     int level;

  60. 

  61.     // Derived settings.

  62.     int mb_width;

  63.     int mb_height;

  64. 

  65.     int fixed_qp_idr;

  66.     int fixed_qp_p;

  67.     int fixed_qp_b;

  68. 

  69.     // Stream state.

  70.     int frame_num;

  71.     int pic_order_cnt;

  72.     int next_frame_num;

  73.     int64_t last_idr_frame;

  74.     int64_t idr_pic_count;

  75. 

  76.     int primary_pic_type;

  77.     int slice_type;

  78. 

  79.     int cpb_delay;

  80.     int dpb_delay;

  81. 

  82.     // Writer structures.

  83.     CodedBitstreamContext *cbc;

  84.     CodedBitstreamFragment current_access_unit;

  85. 

  86.     H264RawAUD   raw_aud;

  87.     H264RawSPS   raw_sps;

  88.     H264RawPPS   raw_pps;

  89.     H264RawSEI   raw_sei;

  90.     H264RawSlice raw_slice;

  91. 

  92.     H264RawSEIBufferingPeriod      sei_buffering_period;

  93.     H264RawSEIPicTiming            sei_pic_timing;

  94.     H264RawSEIRecoveryPoint        sei_recovery_point;

  95.     H264RawSEIUserDataUnregistered sei_identifier;

  96.     char                          *sei_identifier_string;

  97. 

  98.     int aud_needed;

  99.     int sei_needed;

  100.     int sei_cbr_workaround_needed;

  101. } VAAPIEncodeH264Context;

  102. 

  103. 

  104. static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,

  105.                                                char *data, size_t *data_len,

  106.                                                CodedBitstreamFragment *au)

  107. {

  108.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  109.     int err;

  110. 

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

  112.     if (err < 0) {

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

  114.         return err;

  115.     }

  116. 

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

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

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

  120.                8 * au->data_size - au->data_bit_padding);

  121.         return AVERROR(ENOSPC);

  122.     }

  123. 

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

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

  126. 

  127.     return 0;

  128. }

  129. 

  130. static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,

  131.                                      CodedBitstreamFragment *au,

  132.                                      void *nal_unit)

  133. {

  134.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  135.     H264RawNALUnitHeader *header = nal_unit;

  136.     int err;

  137. 

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

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

  140.     if (err < 0) {

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

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

  143.         return err;

  144.     }

  145. 

  146.     return 0;

  147. }

  148. 

  149. static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,

  150.                                                    char *data, size_t *data_len)

  151. {

  152.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  154.     int err;

  155. 

  156.     if (priv->aud_needed) {

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

  158.         if (err < 0)

  159.             goto fail;

  160.         priv->aud_needed = 0;

  161.     }

  162. 

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

  164.     if (err < 0)

  165.         goto fail;

  166. 

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

  168.     if (err < 0)

  169.         goto fail;

  170. 

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

  172. fail:

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

  174.     return err;

  175. }

  176. 

  177. static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,

  178.                                                 VAAPIEncodePicture *pic,

  179.                                                 VAAPIEncodeSlice *slice,

  180.                                                 char *data, size_t *data_len)

  181. {

  182.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  184.     int err;

  185. 

  186.     if (priv->aud_needed) {

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

  188.         if (err < 0)

  189.             goto fail;

  190.         priv->aud_needed = 0;

  191.     }

  192. 

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

  194.     if (err < 0)

  195.         goto fail;

  196. 

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

  198. fail:

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

  200.     return err;

  201. }

  202. 

  203. static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,

  204.                                                 VAAPIEncodePicture *pic,

  205.                                                 int index, int *type,

  206.                                                 char *data, size_t *data_len)

  207. {

  208.     VAAPIEncodeH264Context *priv = avctx->priv_data;

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

  210.     int err, i;

  211. 

  212.     if (priv->sei_needed) {

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

  214. 

  215.         if (priv->aud_needed) {

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

  217.             if (err < 0)

  218.                 goto fail;

  219.             priv->aud_needed = 0;

  220.         }

  221. 

  222.         *sei = (H264RawSEI) {

  223.             .nal_unit_header = {

  224.                 .nal_unit_type = H264_NAL_SEI,

  225.             },

  226.         };

  227. 

  228.         i = 0;

  229. 

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

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

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

  233.             ++i;

  234.         }

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

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

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

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

  239.                 ++i;

  240.             }

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

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

  243.             ++i;

  244.         }

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

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

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

  248.             ++i;

  249.         }

  250. 

  251.         sei->payload_count = i;

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

  253. 

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

  255.         if (err < 0)

  256.             goto fail;

  257.         priv->sei_needed = 0;

  258. 

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

  260.         if (err < 0)

  261.             goto fail;

  262. 

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

  264. 

  265.         *type = VAEncPackedHeaderRawData;

  266.         return 0;

  267. 

  268. #if !CONFIG_VAAPI_1

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

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

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

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

  273.         // driver and inserted into the stream.

  274.         *data_len = 0;

  275.         *type = VAEncPackedHeaderH264_SEI;

  276.         priv->sei_cbr_workaround_needed = 0;

  277.         return 0;

  278. #endif

  279. 

  280.     } else {

  281.         return AVERROR_EOF;

  282.     }

  283. 

  284. fail:

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

  286.     return err;

  287. }

  288. 

  289. static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)

  290. {

  291.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  292.     VAAPIEncodeH264Context           *priv = avctx->priv_data;

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

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

  295.     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;

  296.     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;

  297. 

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

  299.            sizeof(priv->current_access_unit));

  300. 

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

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

  303. 

  304.     sps->nal_unit_header.nal_ref_idc   = 3;

  305.     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;

  306. 

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

  308.     sps->constraint_set1_flag =

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

  310.     sps->constraint_set3_flag =

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

  312. 

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

  314. 

  315.     sps->seq_parameter_set_id = 0;

  316.     sps->chroma_format_idc    = 1;

  317. 

  318.     sps->log2_max_frame_num_minus4 = 4;

  319.     sps->pic_order_cnt_type        = 0;

  320.     sps->log2_max_pic_order_cnt_lsb_minus4 =

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

  322. 

  323.     sps->max_num_ref_frames =

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

  325.         1 + (ctx->b_per_p > 0);

  326. 

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

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

  329. 

  330.     sps->frame_mbs_only_flag = 1;

  331.     sps->direct_8x8_inference_flag = 1;

  332. 

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

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

  335.         sps->frame_cropping_flag = 1;

  336. 

  337.         sps->frame_crop_left_offset   = 0;

  338.         sps->frame_crop_right_offset  =

  339.             (16 * priv->mb_width - avctx->width) / 2;

  340.         sps->frame_crop_top_offset    = 0;

  341.         sps->frame_crop_bottom_offset =

  342.             (16 * priv->mb_height - avctx->height) / 2;

  343.     } else {

  344.         sps->frame_cropping_flag = 0;

  345.     }

  346. 

  347.     sps->vui_parameters_present_flag = 1;

  348. 

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

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

  351.         static const AVRational sar_idc[] = {

  352.             {   0,  0 },

  353.             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },

  354.             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },

  355.             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },

  356.             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },

  357.         };

  358.         int i;

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

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

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

  362.                 sps->vui.aspect_ratio_idc = i;

  363.                 break;

  364.             }

  365.         }

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

  367.             sps->vui.aspect_ratio_idc = 255;

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

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

  370.         }

  371.         sps->vui.aspect_ratio_info_present_flag = 1;

  372.     }

  373. 

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

  375.         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||

  376.         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  377.         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  378.         sps->vui.video_signal_type_present_flag = 1;

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

  380.         sps->vui.video_full_range_flag =

  381.             avctx->color_range == AVCOL_RANGE_JPEG;

  382. 

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

  384.             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||

  385.             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {

  386.             sps->vui.colour_description_present_flag = 1;

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

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

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

  390.         }

  391.     } else {

  392.         sps->vui.video_format             = 5;

  393.         sps->vui.video_full_range_flag    = 0;

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

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

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

  397.     }

  398. 

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

  400.         sps->vui.chroma_loc_info_present_flag = 1;

  401.         sps->vui.chroma_sample_loc_type_top_field    =

  402.         sps->vui.chroma_sample_loc_type_bottom_field =

  403.             avctx->chroma_sample_location - 1;

  404.     }

  405. 

  406.     sps->vui.timing_info_present_flag = 1;

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

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

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

  410.         sps->vui.fixed_frame_rate_flag = 1;

  411.     } else {

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

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

  414.         sps->vui.fixed_frame_rate_flag = 0;

  415.     }

  416. 

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

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

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

  420. 

  421.         sps->vui.nal_hrd_parameters_present_flag = 1;

  422. 

  423.         hrd->cpb_cnt_minus1 = 0;

  424. 

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

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

  427.         hrd->bit_rate_scale =

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

  429.         hrd->bit_rate_value_minus1[0] =

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

  431. 

  432.         hrd->cpb_size_scale =

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

  434.         hrd->cpb_size_value_minus1[0] =

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

  436. 

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

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

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

  440. 

  441.         hrd->initial_cpb_removal_delay_length_minus1 = 23;

  442.         hrd->cpb_removal_delay_length_minus1         = 23;

  443.         hrd->dpb_output_delay_length_minus1          = 7;

  444.         hrd->time_offset_length                      = 0;

  445. 

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

  447. 

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

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

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

  451.             ctx->hrd_params.hrd.buffer_size;

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

  453.     } else {

  454.         sps->vui.nal_hrd_parameters_present_flag = 0;

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

  456.     }

  457. 

  458.     sps->vui.bitstream_restriction_flag    = 1;

  459.     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;

  460.     sps->vui.log2_max_mv_length_horizontal = 16;

  461.     sps->vui.log2_max_mv_length_vertical   = 16;

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

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

  464. 

  465.     pps->nal_unit_header.nal_ref_idc = 3;

  466.     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;

  467. 

  468.     pps->pic_parameter_set_id = 0;

  469.     pps->seq_parameter_set_id = 0;

  470. 

  471.     pps->entropy_coding_mode_flag =

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

  473.           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  474.           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);

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

  476.         pps->entropy_coding_mode_flag = 0;

  477. 

  478.     pps->num_ref_idx_l0_default_active_minus1 = 0;

  479.     pps->num_ref_idx_l1_default_active_minus1 = 0;

  480. 

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

  482. 

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

  484.         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||

  485.         sps->profile_idc == FF_PROFILE_H264_MAIN) {

  486.         pps->more_rbsp_data = 0;

  487.     } else {

  488.         pps->more_rbsp_data = 1;

  489. 

  490.         pps->transform_8x8_mode_flag = 1;

  491.     }

  492. 

  493.     *vseq = (VAEncSequenceParameterBufferH264) {

  494.         .seq_parameter_set_id = sps->seq_parameter_set_id,

  495.         .level_idc        = sps->level_idc,

  496.         .intra_period     = ctx->gop_size,

  497.         .intra_idr_period = ctx->gop_size,

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

  499. 

  500.         .bits_per_second       = ctx->va_bit_rate,

  501.         .max_num_ref_frames    = sps->max_num_ref_frames,

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

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

  504. 

  505.         .seq_fields.bits = {

  506.             .chroma_format_idc                 = sps->chroma_format_idc,

  507.             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,

  508.             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,

  509.             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,

  510.             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,

  511.             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,

  512.             .pic_order_cnt_type                = sps->pic_order_cnt_type,

  513.             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,

  514.             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,

  515.         },

  516. 

  517.         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,

  518.         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,

  519. 

  520.         .frame_cropping_flag      = sps->frame_cropping_flag,

  521.         .frame_crop_left_offset   = sps->frame_crop_left_offset,

  522.         .frame_crop_right_offset  = sps->frame_crop_right_offset,

  523.         .frame_crop_top_offset    = sps->frame_crop_top_offset,

  524.         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,

  525. 

  526.         .vui_parameters_present_flag = sps->vui_parameters_present_flag,

  527. 

  528.         .vui_fields.bits = {

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

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

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

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

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

  534.         },

  535. 

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

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

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

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

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

  541.     };

  542. 

  543.     *vpic = (VAEncPictureParameterBufferH264) {

  544.         .CurrPic = {

  545.             .picture_id = VA_INVALID_ID,

  546.             .flags      = VA_PICTURE_H264_INVALID,

  547.         },

  548. 

  549.         .coded_buf = VA_INVALID_ID,

  550. 

  551.         .pic_parameter_set_id = pps->pic_parameter_set_id,

  552.         .seq_parameter_set_id = pps->seq_parameter_set_id,

  553. 

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

  555.         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,

  556.         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,

  557. 

  558.         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,

  559.         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,

  560. 

  561.         .pic_fields.bits = {

  562.             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,

  563.             .weighted_pred_flag              = pps->weighted_pred_flag,

  564.             .weighted_bipred_idc             = pps->weighted_bipred_idc,

  565.             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,

  566.             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,

  567.             .deblocking_filter_control_present_flag =

  568.                 pps->deblocking_filter_control_present_flag,

  569.             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,

  570.             .pic_order_present_flag          =

  571.                 pps->bottom_field_pic_order_in_frame_present_flag,

  572.             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,

  573.         },

  574.     };

  575. 

  576.     return 0;

  577. }

  578. 

  579. static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,

  580.                                                  VAAPIEncodePicture *pic)

  581. {

  582.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  583.     VAAPIEncodeH264Context          *priv = avctx->priv_data;

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

  585.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  586.     int i;

  587. 

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

  589.            sizeof(priv->current_access_unit));

  590. 

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

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

  593.         priv->frame_num      = 0;

  594.         priv->next_frame_num = 1;

  595.         priv->cpb_delay      = 0;

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

  597.         ++priv->idr_pic_count;

  598. 

  599.         priv->slice_type       = 7;

  600.         priv->primary_pic_type = 0;

  601.     } else {

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

  603. 

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

  605.             // Reference picture, so frame_num advances.

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

  607.                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

  608.         }

  609.         ++priv->cpb_delay;

  610. 

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

  612.             priv->slice_type       = 7;

  613.             priv->primary_pic_type = 0;

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

  615.             priv->slice_type       = 5;

  616.             priv->primary_pic_type = 1;

  617.         } else {

  618.             priv->slice_type       = 6;

  619.             priv->primary_pic_type = 2;

  620.         }

  621.     }

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

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

  624. 

  625.     if (priv->aud) {

  626.         priv->aud_needed = 1;

  627.         priv->raw_aud = (H264RawAUD) {

  628.             .nal_unit_header = {

  629.                 .nal_unit_type = H264_NAL_AUD,

  630.             },

  631.             .primary_pic_type  = priv->primary_pic_type,

  632.         };

  633.     } else {

  634.         priv->aud_needed = 0;

  635.     }

  636. 

  637.     priv->sei_needed = 0;

  638. 

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

  640.         priv->sei_needed |= SEI_IDENTIFIER;

  641. #if !CONFIG_VAAPI_1

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

  643.         priv->sei_cbr_workaround_needed = 1;

  644. #endif

  645. 

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

  647.         priv->sei_pic_timing = (H264RawSEIPicTiming) {

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

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

  650.         };

  651. 

  652.         priv->sei_needed |= SEI_TIMING;

  653.     }

  654. 

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

  656.         priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {

  657.             .recovery_frame_cnt = 0,

  658.             .exact_match_flag   = 1,

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

  660.         };

  661. 

  662.         priv->sei_needed |= SEI_RECOVERY_POINT;

  663.     }

  664. 

  665.     vpic->CurrPic = (VAPictureH264) {

  666.         .picture_id          = pic->recon_surface,

  667.         .frame_idx           = priv->frame_num,

  668.         .flags               = 0,

  669.         .TopFieldOrderCnt    = priv->pic_order_cnt,

  670.         .BottomFieldOrderCnt = priv->pic_order_cnt,

  671.     };

  672. 

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

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

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

  676.             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);

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

  678. 

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

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

  681.             .picture_id          = ref->recon_surface,

  682.             .frame_idx           = frame_num,

  683.             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,

  684.             .TopFieldOrderCnt    = pic_order_cnt,

  685.             .BottomFieldOrderCnt = pic_order_cnt,

  686.         };

  687.     }

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

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

  690.             .picture_id = VA_INVALID_ID,

  691.             .flags      = VA_PICTURE_H264_INVALID,

  692.         };

  693.     }

  694. 

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

  696. 

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

  698. 

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

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

  701. 

  702.     pic->nb_slices = 1;

  703. 

  704.     return 0;

  705. }

  706. 

  707. static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,

  708.                                                VAAPIEncodePicture *pic,

  709.                                                VAAPIEncodeSlice *slice)

  710. {

  711.     VAAPIEncodeH264Context          *priv = avctx->priv_data;

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

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

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

  715.     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;

  716.     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;

  717.     int i;

  718. 

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

  720.         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;

  721.         sh->nal_unit_header.nal_ref_idc   = 3;

  722.     } else {

  723.         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;

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

  725.     }

  726. 

  727.     // Only one slice per frame.

  728.     sh->first_mb_in_slice = 0;

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

  730. 

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

  732. 

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

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

  735. 

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

  737.         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);

  738. 

  739.     sh->direct_spatial_mv_pred_flag = 1;

  740. 

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

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

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

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

  745.     else

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

  747. 

  748. 

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

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

  751. 

  752.     vslice->macroblock_info = VA_INVALID_ID;

  753. 

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

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

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

  757. 

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

  759. 

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

  761. 

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

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

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

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

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

  767.     }

  768. 

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

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

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

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

  773.                    pic->type == PICTURE_TYPE_B);

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

  775.     }

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

  777.         // Forward reference for B-frame.

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

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

  780.     }

  781. 

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

  783. 

  784.     return 0;

  785. }

  786. 

  787. static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)

  788. {

  789.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  790.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  791.     int err;

  792. 

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

  794.     if (err < 0)

  795.         return err;

  796. 

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

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

  799. 

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

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

  802.         if (avctx->i_quant_factor > 0.0)

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

  804.                                         avctx->i_quant_offset) + 0.5);

  805.         else

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

  807.         if (avctx->b_quant_factor > 0.0)

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

  809.                                       avctx->b_quant_offset) + 0.5);

  810.         else

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

  812. 

  813.         priv->sei &= ~SEI_TIMING;

  814. 

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

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

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

  818. 

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

  820.                ctx->va_rc_mode == VA_RC_VBR) {

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

  822.         priv->fixed_qp_idr = 26;

  823.         priv->fixed_qp_p   = 26;

  824.         priv->fixed_qp_b   = 26;

  825. 

  826.     } else {

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

  828.     }

  829. 

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

  831.         const char *lavc  = LIBAVCODEC_IDENT;

  832.         const char *vaapi = VA_VERSION_S;

  833.         const char *driver;

  834.         int len;

  835. 

  836.         memcpy(priv->sei_identifier.uuid_iso_iec_11578,

  837.                vaapi_encode_h264_sei_identifier_uuid,

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

  839. 

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

  841.         if (!driver)

  842.             driver = "unknown driver";

  843. 

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

  845.         if (len >= 0) {

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

  847.             if (!priv->sei_identifier_string)

  848.                 return AVERROR(ENOMEM);

  849. 

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

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

  852. 

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

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

  855.         }

  856.     }

  857. 

  858.     return 0;

  859. }

  860. 

  861. static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {

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

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

  864.     { FF_PROFILE_H264_CONSTRAINED_BASELINE,

  865.                             8, 3, 1, 1, VAProfileH264ConstrainedBaseline },

  866.     { FF_PROFILE_UNKNOWN }

  867. };

  868. 

  869. static const VAAPIEncodeType vaapi_encode_type_h264 = {

  870.     .profiles              = vaapi_encode_h264_profiles,

  871. 

  872.     .configure             = &vaapi_encode_h264_configure,

  873. 

  874.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),

  875.     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,

  876. 

  877.     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),

  878.     .init_picture_params   = &vaapi_encode_h264_init_picture_params,

  879. 

  880.     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),

  881.     .init_slice_params     = &vaapi_encode_h264_init_slice_params,

  882. 

  883.     .sequence_header_type  = VAEncPackedHeaderSequence,

  884.     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,

  885. 

  886.     .slice_header_type     = VAEncPackedHeaderH264_Slice,

  887.     .write_slice_header    = &vaapi_encode_h264_write_slice_header,

  888. 

  889.     .write_extra_header    = &vaapi_encode_h264_write_extra_header,

  890. };

  891. 

  892. static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)

  893. {

  894.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  895.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  896. 

  897.     ctx->codec = &vaapi_encode_type_h264;

  898. 

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

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

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

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

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

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

  905. 

  906.     // Reject unsupported profiles.

  907.     switch (avctx->profile) {

  908.     case FF_PROFILE_H264_BASELINE:

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

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

  911.         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;

  912.         break;

  913.     case FF_PROFILE_H264_EXTENDED:

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

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

  916.         return AVERROR_PATCHWELCOME;

  917.     case FF_PROFILE_H264_HIGH_10:

  918.     case FF_PROFILE_H264_HIGH_10_INTRA:

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

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

  921.         return AVERROR_PATCHWELCOME;

  922.     case FF_PROFILE_H264_HIGH_422:

  923.     case FF_PROFILE_H264_HIGH_422_INTRA:

  924.     case FF_PROFILE_H264_HIGH_444:

  925.     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:

  926.     case FF_PROFILE_H264_HIGH_444_INTRA:

  927.     case FF_PROFILE_H264_CAVLC_444:

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

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

  930.         return AVERROR_PATCHWELCOME;

  931.     }

  932. 

  933.     ctx->va_packed_headers =

  934.         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.

  935.         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.

  936.         VA_ENC_PACKED_HEADER_MISC;      // SEI.

  937. 

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

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

  940. 

  941.     return ff_vaapi_encode_init(avctx);

  942. }

  943. 

  944. static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)

  945. {

  946.     VAAPIEncodeH264Context *priv = avctx->priv_data;

  947. 

  948.     ff_cbs_close(&priv->cbc);

  949.     av_freep(&priv->sei_identifier_string);

  950. 

  951.     return ff_vaapi_encode_close(avctx);

  952. }

  953. 

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

  955. #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

  956. static const AVOption vaapi_encode_h264_options[] = {

  957.     VAAPI_ENCODE_COMMON_OPTIONS,

  958. 

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

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

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

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

  963.     { "coder", "Entropy coder type",

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

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

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

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

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

  969. 

  970.     { "aud", "Include AUD",

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

  972. 

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

  974.       OFFSET(sei), AV_OPT_TYPE_FLAGS,

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

  976.       0, INT_MAX, FLAGS, "sei" },

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

  978.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },

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

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

  981.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },

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

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

  984.       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },

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

  986. 

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

  988.       OFFSET(profile), AV_OPT_TYPE_INT,

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

  990. 

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

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

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

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

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

  996. #undef PROFILE

  997. 

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

  999.       OFFSET(level), AV_OPT_TYPE_INT,

  1000.       { .i64 = 51 }, 0x00, 0xff, FLAGS, "level" },

  1001. 

  1002. #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \

  1003.       { .i64 = value }, 0, 0, FLAGS, "level"

  1004.     { LEVEL("1",   10) },

  1005.     { LEVEL("1.1", 11) },

  1006.     { LEVEL("1.2", 12) },

  1007.     { LEVEL("1.3", 13) },

  1008.     { LEVEL("2",   20) },

  1009.     { LEVEL("2.1", 21) },

  1010.     { LEVEL("2.2", 22) },

  1011.     { LEVEL("3",   30) },

  1012.     { LEVEL("3.1", 31) },

  1013.     { LEVEL("3.2", 32) },

  1014.     { LEVEL("4",   40) },

  1015.     { LEVEL("4.1", 41) },

  1016.     { LEVEL("4.2", 42) },

  1017.     { LEVEL("5",   50) },

  1018.     { LEVEL("5.1", 51) },

  1019.     { LEVEL("5.2", 52) },

  1020.     { LEVEL("6",   60) },

  1021.     { LEVEL("6.1", 61) },

  1022.     { LEVEL("6.2", 62) },

  1023. #undef LEVEL

  1024. 

  1025.     { NULL },

  1026. };

  1027. 

  1028. static const AVCodecDefault vaapi_encode_h264_defaults[] = {

  1029.     { "b",              "0"   },

  1030.     { "bf",             "2"   },

  1031.     { "g",              "120" },

  1032.     { "i_qfactor",      "1"   },

  1033.     { "i_qoffset",      "0"   },

  1034.     { "b_qfactor",      "6/5" },

  1035.     { "b_qoffset",      "0"   },

  1036.     { "qmin",           "-1"  },

  1037.     { "qmax",           "-1"  },

  1038.     { NULL },

  1039. };

  1040. 

  1041. static const AVClass vaapi_encode_h264_class = {

  1042.     .class_name = "h264_vaapi",

  1043.     .item_name  = av_default_item_name,

  1044.     .option     = vaapi_encode_h264_options,

  1045.     .version    = LIBAVUTIL_VERSION_INT,

  1046. };

  1047. 

  1048. AVCodec ff_h264_vaapi_encoder = {

  1049.     .name           = "h264_vaapi",

  1050.     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),

  1051.     .type           = AVMEDIA_TYPE_VIDEO,

  1052.     .id             = AV_CODEC_ID_H264,

  1053.     .priv_data_size = sizeof(VAAPIEncodeH264Context),

  1054.     .init           = &vaapi_encode_h264_init,

  1055.     .encode2        = &ff_vaapi_encode2,

  1056.     .close          = &vaapi_encode_h264_close,

  1057.     .priv_class     = &vaapi_encode_h264_class,

  1058.     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,

  1059.     .defaults       = vaapi_encode_h264_defaults,

  1060.     .pix_fmts = (const enum AVPixelFormat[]) {

  1061.         AV_PIX_FMT_VAAPI,

  1062.         AV_PIX_FMT_NONE,

  1063.     },

  1064.     .wrapper_name   = "vaapi",

  1065. };