git.sesse.net Git - ffmpeg/blob - libavcodec/vaapi_encode_h264.c

   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     int mb_width;
  51     int mb_height;
  52
  53     int fixed_qp_idr;
  54     int fixed_qp_p;
  55     int fixed_qp_b;
  56
  57     H264RawAUD aud;
  58     H264RawSPS sps;
  59     H264RawPPS pps;
  60     H264RawSEI sei;
  61     H264RawSlice slice;
  62
  63     H264RawSEIBufferingPeriod buffering_period;
  64     H264RawSEIPicTiming pic_timing;
  65     H264RawSEIRecoveryPoint recovery_point;
  66     H264RawSEIUserDataUnregistered identifier;
  67     char *identifier_string;
  68
  69     int frame_num;
  70     int pic_order_cnt;
  71     int next_frame_num;
  72     int64_t last_idr_frame;
  73     int64_t idr_pic_count;
  74
  75     int primary_pic_type;
  76     int slice_type;
  77
  78     int cpb_delay;
  79     int dpb_delay;
  80
  81     CodedBitstreamContext *cbc;
  82     CodedBitstreamFragment current_access_unit;
  83     int aud_needed;
  84     int sei_needed;
  85     int sei_cbr_workaround_needed;
  86 } VAAPIEncodeH264Context;
  87
  88 typedef struct VAAPIEncodeH264Options {
  89     int qp;
  90     int quality;
  91     int low_power;
  92     // Entropy encoder type.
  93     int coder;
  94     int aud;
  95     int sei;
  96 } VAAPIEncodeH264Options;
  97
  98
  99 static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
 100                                                char *data, size_t *data_len,
 101                                                CodedBitstreamFragment *au)
 102 {
 103     VAAPIEncodeContext      *ctx = avctx->priv_data;
 104     VAAPIEncodeH264Context *priv = ctx->priv_data;
 105     int err;
 106
 107     err = ff_cbs_write_fragment_data(priv->cbc, au);
 108     if (err < 0) {
 109         av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
 110         return err;
 111     }
 112
 113     if (*data_len < 8 * au->data_size - au->data_bit_padding) {
 114         av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
 115                "%zu < %zu.\n", *data_len,
 116                8 * au->data_size - au->data_bit_padding);
 117         return AVERROR(ENOSPC);
 118     }
 119
 120     memcpy(data, au->data, au->data_size);
 121     *data_len = 8 * au->data_size - au->data_bit_padding;
 122
 123     return 0;
 124 }
 125
 126 static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,
 127                                      CodedBitstreamFragment *au,
 128                                      void *nal_unit)
 129 {
 130     VAAPIEncodeContext      *ctx = avctx->priv_data;
 131     VAAPIEncodeH264Context *priv = ctx->priv_data;
 132     H264RawNALUnitHeader *header = nal_unit;
 133     int err;
 134
 135     err = ff_cbs_insert_unit_content(priv->cbc, au, -1,
 136                                      header->nal_unit_type, nal_unit);
 137     if (err < 0) {
 138         av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
 139                "type = %d.\n", header->nal_unit_type);
 140         return err;
 141     }
 142
 143     return 0;
 144 }
 145
 146 static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
 147                                                    char *data, size_t *data_len)
 148 {
 149     VAAPIEncodeContext      *ctx = avctx->priv_data;
 150     VAAPIEncodeH264Context *priv = ctx->priv_data;
 151     CodedBitstreamFragment   *au = &priv->current_access_unit;
 152     int err;
 153
 154     if (priv->aud_needed) {
 155         err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);
 156         if (err < 0)
 157             goto fail;
 158         priv->aud_needed = 0;
 159     }
 160
 161     err = vaapi_encode_h264_add_nal(avctx, au, &priv->sps);
 162     if (err < 0)
 163         goto fail;
 164
 165     err = vaapi_encode_h264_add_nal(avctx, au, &priv->pps);
 166     if (err < 0)
 167         goto fail;
 168
 169     err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
 170 fail:
 171     ff_cbs_fragment_uninit(priv->cbc, au);
 172     return err;
 173 }
 174
 175 static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
 176                                                 VAAPIEncodePicture *pic,
 177                                                 VAAPIEncodeSlice *slice,
 178                                                 char *data, size_t *data_len)
 179 {
 180     VAAPIEncodeContext      *ctx = avctx->priv_data;
 181     VAAPIEncodeH264Context *priv = ctx->priv_data;
 182     CodedBitstreamFragment   *au = &priv->current_access_unit;
 183     int err;
 184
 185     if (priv->aud_needed) {
 186         err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);
 187         if (err < 0)
 188             goto fail;
 189         priv->aud_needed = 0;
 190     }
 191
 192     err = vaapi_encode_h264_add_nal(avctx, au, &priv->slice);
 193     if (err < 0)
 194         goto fail;
 195
 196     err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
 197 fail:
 198     ff_cbs_fragment_uninit(priv->cbc, au);
 199     return err;
 200 }
 201
 202 static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
 203                                                 VAAPIEncodePicture *pic,
 204                                                 int index, int *type,
 205                                                 char *data, size_t *data_len)
 206 {
 207     VAAPIEncodeContext      *ctx = avctx->priv_data;
 208     VAAPIEncodeH264Context *priv = ctx->priv_data;
 209     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 210     CodedBitstreamFragment   *au = &priv->current_access_unit;
 211     int err, i;
 212
 213     if (priv->sei_needed) {
 214         if (priv->aud_needed) {
 215             err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);
 216             if (err < 0)
 217                 goto fail;
 218             priv->aud_needed = 0;
 219         }
 220
 221         memset(&priv->sei, 0, sizeof(priv->sei));
 222         priv->sei.nal_unit_header.nal_unit_type = H264_NAL_SEI;
 223
 224         i = 0;
 225         if (pic->encode_order == 0 && opt->sei & SEI_IDENTIFIER) {
 226             priv->sei.payload[i].payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED;
 227             priv->sei.payload[i].payload.user_data_unregistered = priv->identifier;
 228             ++i;
 229         }
 230         if (opt->sei & SEI_TIMING) {
 231             if (pic->type == PICTURE_TYPE_IDR) {
 232                 priv->sei.payload[i].payload_type = H264_SEI_TYPE_BUFFERING_PERIOD;
 233                 priv->sei.payload[i].payload.buffering_period = priv->buffering_period;
 234                 ++i;
 235             }
 236             priv->sei.payload[i].payload_type = H264_SEI_TYPE_PIC_TIMING;
 237             priv->sei.payload[i].payload.pic_timing = priv->pic_timing;
 238             ++i;
 239         }
 240         if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
 241             priv->sei.payload[i].payload_type = H264_SEI_TYPE_RECOVERY_POINT;
 242             priv->sei.payload[i].payload.recovery_point = priv->recovery_point;
 243             ++i;
 244         }
 245
 246         priv->sei.payload_count = i;
 247         av_assert0(priv->sei.payload_count > 0);
 248
 249         err = vaapi_encode_h264_add_nal(avctx, au, &priv->sei);
 250         if (err < 0)
 251             goto fail;
 252         priv->sei_needed = 0;
 253
 254         err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
 255         if (err < 0)
 256             goto fail;
 257
 258         ff_cbs_fragment_uninit(priv->cbc, au);
 259
 260         *type = VAEncPackedHeaderRawData;
 261         return 0;
 262
 263 #if !CONFIG_VAAPI_1
 264     } else if (priv->sei_cbr_workaround_needed) {
 265         // Insert a zero-length header using the old SEI type.  This is
 266         // required to avoid triggering broken behaviour on Intel platforms
 267         // in CBR mode where an invalid SEI message is generated by the
 268         // driver and inserted into the stream.
 269         *data_len = 0;
 270         *type = VAEncPackedHeaderH264_SEI;
 271         priv->sei_cbr_workaround_needed = 0;
 272         return 0;
 273 #endif
 274
 275     } else {
 276         return AVERROR_EOF;
 277     }
 278
 279 fail:
 280     ff_cbs_fragment_uninit(priv->cbc, au);
 281     return err;
 282 }
 283
 284 static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
 285 {
 286     VAAPIEncodeContext                *ctx = avctx->priv_data;
 287     VAAPIEncodeH264Context           *priv = ctx->priv_data;
 288     VAAPIEncodeH264Options            *opt = ctx->codec_options;
 289     H264RawSPS                        *sps = &priv->sps;
 290     H264RawPPS                        *pps = &priv->pps;
 291     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
 292     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;
 293
 294     memset(&priv->current_access_unit, 0,
 295            sizeof(priv->current_access_unit));
 296
 297     memset(sps, 0, sizeof(*sps));
 298     memset(pps, 0, sizeof(*pps));
 299
 300     sps->nal_unit_header.nal_ref_idc   = 3;
 301     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
 302
 303     sps->profile_idc = avctx->profile & 0xff;
 304     sps->constraint_set1_flag =
 305         !!(avctx->profile & FF_PROFILE_H264_CONSTRAINED);
 306     sps->constraint_set3_flag =
 307         !!(avctx->profile & FF_PROFILE_H264_INTRA);
 308
 309     sps->level_idc = avctx->level;
 310
 311     sps->seq_parameter_set_id = 0;
 312     sps->chroma_format_idc    = 1;
 313
 314     sps->log2_max_frame_num_minus4 = 4;
 315     sps->pic_order_cnt_type        = 0;
 316     sps->log2_max_pic_order_cnt_lsb_minus4 =
 317         av_clip(av_log2(ctx->b_per_p + 1) - 2, 0, 12);
 318
 319     sps->max_num_ref_frames =
 320         (avctx->profile & FF_PROFILE_H264_INTRA) ? 0 :
 321         1 + (ctx->b_per_p > 0);
 322
 323     sps->pic_width_in_mbs_minus1        = priv->mb_width  - 1;
 324     sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
 325
 326     sps->frame_mbs_only_flag = 1;
 327     sps->direct_8x8_inference_flag = 1;
 328
 329     if (avctx->width  != 16 * priv->mb_width ||
 330         avctx->height != 16 * priv->mb_height) {
 331         sps->frame_cropping_flag = 1;
 332
 333         sps->frame_crop_left_offset   = 0;
 334         sps->frame_crop_right_offset  =
 335             (16 * priv->mb_width - avctx->width) / 2;
 336         sps->frame_crop_top_offset    = 0;
 337         sps->frame_crop_bottom_offset =
 338             (16 * priv->mb_height - avctx->height) / 2;
 339     } else {
 340         sps->frame_cropping_flag = 0;
 341     }
 342
 343     sps->vui_parameters_present_flag = 1;
 344
 345     if (avctx->sample_aspect_ratio.num != 0 &&
 346         avctx->sample_aspect_ratio.den != 0) {
 347         static const AVRational sar_idc[] = {
 348             {   0,  0 },
 349             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
 350             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
 351             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
 352             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
 353         };
 354         int i;
 355         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
 356             if (avctx->sample_aspect_ratio.num == sar_idc[i].num &&
 357                 avctx->sample_aspect_ratio.den == sar_idc[i].den) {
 358                 sps->vui.aspect_ratio_idc = i;
 359                 break;
 360             }
 361         }
 362         if (i >= FF_ARRAY_ELEMS(sar_idc)) {
 363             sps->vui.aspect_ratio_idc = 255;
 364             sps->vui.sar_width  = avctx->sample_aspect_ratio.num;
 365             sps->vui.sar_height = avctx->sample_aspect_ratio.den;
 366         }
 367         sps->vui.aspect_ratio_info_present_flag = 1;
 368     }
 369
 370     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
 371         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 372         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 373         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 374         sps->vui.video_signal_type_present_flag = 1;
 375         sps->vui.video_format      = 5; // Unspecified.
 376         sps->vui.video_full_range_flag =
 377             avctx->color_range == AVCOL_RANGE_JPEG;
 378
 379         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 380             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 381             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 382             sps->vui.colour_description_present_flag = 1;
 383             sps->vui.colour_primaries         = avctx->color_primaries;
 384             sps->vui.transfer_characteristics = avctx->color_trc;
 385             sps->vui.matrix_coefficients      = avctx->colorspace;
 386         }
 387     } else {
 388         sps->vui.video_format             = 5;
 389         sps->vui.video_full_range_flag    = 0;
 390         sps->vui.colour_primaries         = avctx->color_primaries;
 391         sps->vui.transfer_characteristics = avctx->color_trc;
 392         sps->vui.matrix_coefficients      = avctx->colorspace;
 393     }
 394
 395     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
 396         sps->vui.chroma_loc_info_present_flag = 1;
 397         sps->vui.chroma_sample_loc_type_top_field    =
 398         sps->vui.chroma_sample_loc_type_bottom_field =
 399             avctx->chroma_sample_location - 1;
 400     }
 401
 402     sps->vui.timing_info_present_flag = 1;
 403     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 404         sps->vui.num_units_in_tick = avctx->framerate.den;
 405         sps->vui.time_scale        = 2 * avctx->framerate.num;
 406         sps->vui.fixed_frame_rate_flag = 1;
 407     } else {
 408         sps->vui.num_units_in_tick = avctx->time_base.num;
 409         sps->vui.time_scale        = 2 * avctx->time_base.den;
 410         sps->vui.fixed_frame_rate_flag = 0;
 411     }
 412
 413     if (opt->sei & SEI_TIMING) {
 414         H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
 415
 416         sps->vui.nal_hrd_parameters_present_flag = 1;
 417
 418         hrd->cpb_cnt_minus1 = 0;
 419
 420         // Try to scale these to a sensible range so that the
 421         // golomb encode of the value is not overlong.
 422         hrd->bit_rate_scale =
 423             av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
 424         hrd->bit_rate_value_minus1[0] =
 425             (avctx->bit_rate >> hrd->bit_rate_scale + 6) - 1;
 426
 427         hrd->cpb_size_scale =
 428             av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
 429         hrd->cpb_size_value_minus1[0] =
 430             (ctx->hrd_params.hrd.buffer_size >> hrd->cpb_size_scale + 4) - 1;
 431
 432         // CBR mode as defined for the HRD cannot be achieved without filler
 433         // data, so this flag cannot be set even with VAAPI CBR modes.
 434         hrd->cbr_flag[0] = 0;
 435
 436         hrd->initial_cpb_removal_delay_length_minus1 = 23;
 437         hrd->cpb_removal_delay_length_minus1         = 23;
 438         hrd->dpb_output_delay_length_minus1          = 7;
 439         hrd->time_offset_length                      = 0;
 440
 441         priv->buffering_period.seq_parameter_set_id = sps->seq_parameter_set_id;
 442
 443         // This calculation can easily overflow 32 bits.
 444         priv->buffering_period.nal.initial_cpb_removal_delay[0] = 90000 *
 445             (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
 446             ctx->hrd_params.hrd.buffer_size;
 447         priv->buffering_period.nal.initial_cpb_removal_delay_offset[0] = 0;
 448     } else {
 449         sps->vui.nal_hrd_parameters_present_flag = 0;
 450         sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
 451     }
 452
 453     sps->vui.bitstream_restriction_flag    = 1;
 454     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
 455     sps->vui.log2_max_mv_length_horizontal = 16;
 456     sps->vui.log2_max_mv_length_vertical   = 16;
 457     sps->vui.max_num_reorder_frames        = (ctx->b_per_p > 0);
 458     sps->vui.max_dec_frame_buffering       = sps->max_num_ref_frames;
 459
 460     pps->nal_unit_header.nal_ref_idc = 3;
 461     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
 462
 463     pps->pic_parameter_set_id = 0;
 464     pps->seq_parameter_set_id = 0;
 465
 466     pps->entropy_coding_mode_flag =
 467         !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 468           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 469           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
 470     if (!opt->coder && pps->entropy_coding_mode_flag)
 471         pps->entropy_coding_mode_flag = 0;
 472
 473     pps->num_ref_idx_l0_default_active_minus1 = 0;
 474     pps->num_ref_idx_l1_default_active_minus1 = 0;
 475
 476     pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
 477
 478     if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 479         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 480         sps->profile_idc == FF_PROFILE_H264_MAIN) {
 481         pps->more_rbsp_data = 0;
 482     } else {
 483         pps->more_rbsp_data = 1;
 484
 485         pps->transform_8x8_mode_flag = 1;
 486     }
 487
 488     *vseq = (VAEncSequenceParameterBufferH264) {
 489         .seq_parameter_set_id = sps->seq_parameter_set_id,
 490         .level_idc        = sps->level_idc,
 491         .intra_period     = avctx->gop_size,
 492         .intra_idr_period = avctx->gop_size,
 493         .ip_period        = ctx->b_per_p + 1,
 494
 495         .bits_per_second       = avctx->bit_rate,
 496         .max_num_ref_frames    = sps->max_num_ref_frames,
 497         .picture_width_in_mbs  = sps->pic_width_in_mbs_minus1 + 1,
 498         .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
 499
 500         .seq_fields.bits = {
 501             .chroma_format_idc                 = sps->chroma_format_idc,
 502             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,
 503             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,
 504             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,
 505             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,
 506             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,
 507             .pic_order_cnt_type                = sps->pic_order_cnt_type,
 508             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
 509             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,
 510         },
 511
 512         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,
 513         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
 514
 515         .frame_cropping_flag      = sps->frame_cropping_flag,
 516         .frame_crop_left_offset   = sps->frame_crop_left_offset,
 517         .frame_crop_right_offset  = sps->frame_crop_right_offset,
 518         .frame_crop_top_offset    = sps->frame_crop_top_offset,
 519         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
 520
 521         .vui_parameters_present_flag = sps->vui_parameters_present_flag,
 522
 523         .vui_fields.bits = {
 524             .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
 525             .timing_info_present_flag       = sps->vui.timing_info_present_flag,
 526             .bitstream_restriction_flag     = sps->vui.bitstream_restriction_flag,
 527             .log2_max_mv_length_horizontal  = sps->vui.log2_max_mv_length_horizontal,
 528             .log2_max_mv_length_vertical    = sps->vui.log2_max_mv_length_vertical,
 529         },
 530
 531         .aspect_ratio_idc  = sps->vui.aspect_ratio_idc,
 532         .sar_width         = sps->vui.sar_width,
 533         .sar_height        = sps->vui.sar_height,
 534         .num_units_in_tick = sps->vui.num_units_in_tick,
 535         .time_scale        = sps->vui.time_scale,
 536     };
 537
 538     *vpic = (VAEncPictureParameterBufferH264) {
 539         .CurrPic = {
 540             .picture_id = VA_INVALID_ID,
 541             .flags      = VA_PICTURE_H264_INVALID,
 542         },
 543
 544         .coded_buf = VA_INVALID_ID,
 545
 546         .pic_parameter_set_id = pps->pic_parameter_set_id,
 547         .seq_parameter_set_id = pps->seq_parameter_set_id,
 548
 549         .pic_init_qp                  = pps->pic_init_qp_minus26 + 26,
 550         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
 551         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
 552
 553         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,
 554         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
 555
 556         .pic_fields.bits = {
 557             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,
 558             .weighted_pred_flag              = pps->weighted_pred_flag,
 559             .weighted_bipred_idc             = pps->weighted_bipred_idc,
 560             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,
 561             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,
 562             .deblocking_filter_control_present_flag =
 563                 pps->deblocking_filter_control_present_flag,
 564             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,
 565             .pic_order_present_flag          =
 566                 pps->bottom_field_pic_order_in_frame_present_flag,
 567             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
 568         },
 569     };
 570
 571     return 0;
 572 }
 573
 574 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
 575                                                  VAAPIEncodePicture *pic)
 576 {
 577     VAAPIEncodeContext               *ctx = avctx->priv_data;
 578     VAAPIEncodeH264Context          *priv = ctx->priv_data;
 579     VAAPIEncodeH264Options           *opt = ctx->codec_options;
 580     H264RawSPS                       *sps = &priv->sps;
 581     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 582     int i;
 583
 584     memset(&priv->current_access_unit, 0,
 585            sizeof(priv->current_access_unit));
 586
 587     if (pic->type == PICTURE_TYPE_IDR) {
 588         av_assert0(pic->display_order == pic->encode_order);
 589         priv->frame_num      = 0;
 590         priv->next_frame_num = 1;
 591         priv->cpb_delay      = 0;
 592         priv->last_idr_frame = pic->display_order;
 593         ++priv->idr_pic_count;
 594
 595         priv->slice_type       = 7;
 596         priv->primary_pic_type = 0;
 597     } else {
 598         priv->frame_num      = priv->next_frame_num;
 599
 600         if (pic->type != PICTURE_TYPE_B) {
 601             // Reference picture, so frame_num advances.
 602             priv->next_frame_num = (priv->frame_num + 1) &
 603                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 604         }
 605         ++priv->cpb_delay;
 606
 607         if (pic->type == PICTURE_TYPE_I) {
 608             priv->slice_type       = 7;
 609             priv->primary_pic_type = 0;
 610         } else if (pic->type == PICTURE_TYPE_P) {
 611             priv->slice_type       = 5;
 612             priv->primary_pic_type = 1;
 613         } else {
 614             priv->slice_type       = 6;
 615             priv->primary_pic_type = 2;
 616         }
 617     }
 618     priv->pic_order_cnt = pic->display_order - priv->last_idr_frame;
 619     priv->dpb_delay     = pic->display_order - pic->encode_order + 1;
 620
 621     if (opt->aud) {
 622         priv->aud_needed = 1;
 623         priv->aud.nal_unit_header.nal_unit_type = H264_NAL_AUD;
 624         priv->aud.primary_pic_type = priv->primary_pic_type;
 625     } else {
 626         priv->aud_needed = 0;
 627     }
 628
 629     if (opt->sei & SEI_IDENTIFIER && pic->encode_order == 0)
 630         priv->sei_needed = 1;
 631 #if !CONFIG_VAAPI_1
 632     if (ctx->va_rc_mode == VA_RC_CBR)
 633         priv->sei_cbr_workaround_needed = 1;
 634 #endif
 635
 636     if (opt->sei & SEI_TIMING) {
 637         memset(&priv->pic_timing, 0, sizeof(priv->pic_timing));
 638
 639         priv->pic_timing.cpb_removal_delay = 2 * priv->cpb_delay;
 640         priv->pic_timing.dpb_output_delay  = 2 * priv->dpb_delay;
 641
 642         priv->sei_needed = 1;
 643     }
 644
 645     if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
 646         priv->recovery_point.recovery_frame_cnt = 0;
 647         priv->recovery_point.exact_match_flag   = 1;
 648         priv->recovery_point.broken_link_flag   = ctx->b_per_p > 0;
 649
 650         priv->sei_needed = 1;
 651     }
 652
 653     vpic->CurrPic = (VAPictureH264) {
 654         .picture_id          = pic->recon_surface,
 655         .frame_idx           = priv->frame_num,
 656         .flags               = 0,
 657         .TopFieldOrderCnt    = priv->pic_order_cnt,
 658         .BottomFieldOrderCnt = priv->pic_order_cnt,
 659     };
 660
 661     for (i = 0; i < pic->nb_refs; i++) {
 662         VAAPIEncodePicture *ref = pic->refs[i];
 663         unsigned int frame_num = (ref->encode_order - priv->last_idr_frame) &
 664             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 665         unsigned int pic_order_cnt = ref->display_order - priv->last_idr_frame;
 666
 667         av_assert0(ref && ref->encode_order < pic->encode_order);
 668         vpic->ReferenceFrames[i] = (VAPictureH264) {
 669             .picture_id          = ref->recon_surface,
 670             .frame_idx           = frame_num,
 671             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
 672             .TopFieldOrderCnt    = pic_order_cnt,
 673             .BottomFieldOrderCnt = pic_order_cnt,
 674         };
 675     }
 676     for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
 677         vpic->ReferenceFrames[i] = (VAPictureH264) {
 678             .picture_id = VA_INVALID_ID,
 679             .flags      = VA_PICTURE_H264_INVALID,
 680         };
 681     }
 682
 683     vpic->coded_buf = pic->output_buffer;
 684
 685     vpic->frame_num = priv->frame_num;
 686
 687     vpic->pic_fields.bits.idr_pic_flag       = (pic->type == PICTURE_TYPE_IDR);
 688     vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
 689
 690     pic->nb_slices = 1;
 691
 692     return 0;
 693 }
 694
 695 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
 696                                                VAAPIEncodePicture *pic,
 697                                                VAAPIEncodeSlice *slice)
 698 {
 699     VAAPIEncodeContext               *ctx = avctx->priv_data;
 700     VAAPIEncodeH264Context          *priv = ctx->priv_data;
 701     H264RawSPS                       *sps = &priv->sps;
 702     H264RawPPS                       *pps = &priv->pps;
 703     H264RawSliceHeader                *sh = &priv->slice.header;
 704     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 705     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
 706     int i;
 707
 708     if (pic->type == PICTURE_TYPE_IDR) {
 709         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
 710         sh->nal_unit_header.nal_ref_idc   = 3;
 711     } else {
 712         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
 713         sh->nal_unit_header.nal_ref_idc   = pic->type != PICTURE_TYPE_B;
 714     }
 715
 716     // Only one slice per frame.
 717     sh->first_mb_in_slice = 0;
 718     sh->slice_type        = priv->slice_type;
 719
 720     sh->pic_parameter_set_id = pps->pic_parameter_set_id;
 721
 722     sh->frame_num  = priv->frame_num;
 723     sh->idr_pic_id = priv->idr_pic_count;
 724
 725     sh->pic_order_cnt_lsb = priv->pic_order_cnt &
 726         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
 727
 728     sh->direct_spatial_mv_pred_flag = 1;
 729
 730     if (pic->type == PICTURE_TYPE_B)
 731         sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
 732     else if (pic->type == PICTURE_TYPE_P)
 733         sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
 734     else
 735         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
 736
 737
 738     vslice->macroblock_address = sh->first_mb_in_slice;
 739     vslice->num_macroblocks    = priv->mb_width * priv->mb_height;
 740
 741     vslice->macroblock_info = VA_INVALID_ID;
 742
 743     vslice->slice_type           = sh->slice_type % 5;
 744     vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
 745     vslice->idr_pic_id           = sh->idr_pic_id;
 746
 747     vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
 748
 749     vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
 750
 751     for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
 752         vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
 753         vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;
 754         vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
 755         vslice->RefPicList1[i].flags      = VA_PICTURE_H264_INVALID;
 756     }
 757
 758     av_assert0(pic->nb_refs <= 2);
 759     if (pic->nb_refs >= 1) {
 760         // Backward reference for P- or B-frame.
 761         av_assert0(pic->type == PICTURE_TYPE_P ||
 762                    pic->type == PICTURE_TYPE_B);
 763         vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
 764     }
 765     if (pic->nb_refs >= 2) {
 766         // Forward reference for B-frame.
 767         av_assert0(pic->type == PICTURE_TYPE_B);
 768         vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
 769     }
 770
 771     vslice->slice_qp_delta = sh->slice_qp_delta;
 772
 773     return 0;
 774 }
 775
 776 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
 777 {
 778     VAAPIEncodeContext      *ctx = avctx->priv_data;
 779     VAAPIEncodeH264Context *priv = ctx->priv_data;
 780     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 781     int err;
 782
 783     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
 784     if (err < 0)
 785         return err;
 786
 787     priv->mb_width  = FFALIGN(avctx->width,  16) / 16;
 788     priv->mb_height = FFALIGN(avctx->height, 16) / 16;
 789
 790     if (ctx->va_rc_mode == VA_RC_CQP) {
 791         priv->fixed_qp_p = opt->qp;
 792         if (avctx->i_quant_factor > 0.0)
 793             priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
 794                                         avctx->i_quant_offset) + 0.5);
 795         else
 796             priv->fixed_qp_idr = priv->fixed_qp_p;
 797         if (avctx->b_quant_factor > 0.0)
 798             priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
 799                                       avctx->b_quant_offset) + 0.5);
 800         else
 801             priv->fixed_qp_b = priv->fixed_qp_p;
 802
 803         opt->sei &= ~SEI_TIMING;
 804
 805         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
 806                "%d / %d / %d for IDR- / P- / B-frames.\n",
 807                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
 808
 809     } else if (ctx->va_rc_mode == VA_RC_CBR ||
 810                ctx->va_rc_mode == VA_RC_VBR) {
 811         // These still need to be  set for pic_init_qp/slice_qp_delta.
 812         priv->fixed_qp_idr = 26;
 813         priv->fixed_qp_p   = 26;
 814         priv->fixed_qp_b   = 26;
 815
 816         av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n",
 817                ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable",
 818                avctx->bit_rate);
 819
 820     } else {
 821         av_assert0(0 && "Invalid RC mode.");
 822     }
 823
 824     if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
 825         avctx->compression_level = opt->quality;
 826
 827     if (opt->sei & SEI_IDENTIFIER) {
 828         const char *lavc  = LIBAVCODEC_IDENT;
 829         const char *vaapi = VA_VERSION_S;
 830         const char *driver;
 831         int len;
 832
 833         memcpy(priv->identifier.uuid_iso_iec_11578,
 834                vaapi_encode_h264_sei_identifier_uuid,
 835                sizeof(priv->identifier.uuid_iso_iec_11578));
 836
 837         driver = vaQueryVendorString(ctx->hwctx->display);
 838         if (!driver)
 839             driver = "unknown driver";
 840
 841         len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
 842         if (len >= 0) {
 843             priv->identifier_string = av_malloc(len + 1);
 844             if (!priv->identifier_string)
 845                 return AVERROR(ENOMEM);
 846
 847             snprintf(priv->identifier_string, len + 1,
 848                      "%s / VAAPI %s / %s", lavc, vaapi, driver);
 849
 850             priv->identifier.data = priv->identifier_string;
 851             priv->identifier.data_length = len + 1;
 852         }
 853     }
 854
 855     return 0;
 856 }
 857
 858 static const VAAPIEncodeType vaapi_encode_type_h264 = {
 859     .priv_data_size        = sizeof(VAAPIEncodeH264Context),
 860
 861     .configure             = &vaapi_encode_h264_configure,
 862
 863     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),
 864     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,
 865
 866     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),
 867     .init_picture_params   = &vaapi_encode_h264_init_picture_params,
 868
 869     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),
 870     .init_slice_params     = &vaapi_encode_h264_init_slice_params,
 871
 872     .sequence_header_type  = VAEncPackedHeaderSequence,
 873     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
 874
 875     .slice_header_type     = VAEncPackedHeaderH264_Slice,
 876     .write_slice_header    = &vaapi_encode_h264_write_slice_header,
 877
 878     .write_extra_header    = &vaapi_encode_h264_write_extra_header,
 879 };
 880
 881 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
 882 {
 883     VAAPIEncodeContext     *ctx = avctx->priv_data;
 884     VAAPIEncodeH264Options *opt =
 885         (VAAPIEncodeH264Options*)ctx->codec_options_data;
 886
 887     ctx->codec = &vaapi_encode_type_h264;
 888
 889     switch (avctx->profile) {
 890     case FF_PROFILE_H264_BASELINE:
 891         av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
 892                "supported, using constrained baseline profile instead.\n");
 893         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
 894     case FF_PROFILE_H264_CONSTRAINED_BASELINE:
 895         ctx->va_profile = VAProfileH264ConstrainedBaseline;
 896         if (avctx->max_b_frames != 0) {
 897             avctx->max_b_frames = 0;
 898             av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline profile "
 899                    "doesn't support encoding with B frames, disabling them.\n");
 900         }
 901         break;
 902     case FF_PROFILE_H264_MAIN:
 903         ctx->va_profile = VAProfileH264Main;
 904         break;
 905     case FF_PROFILE_H264_EXTENDED:
 906         av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
 907                "is not supported.\n");
 908         return AVERROR_PATCHWELCOME;
 909     case FF_PROFILE_UNKNOWN:
 910     case FF_PROFILE_H264_HIGH:
 911         ctx->va_profile = VAProfileH264High;
 912         break;
 913     case FF_PROFILE_H264_HIGH_10:
 914     case FF_PROFILE_H264_HIGH_10_INTRA:
 915         av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
 916                "are not supported.\n");
 917         return AVERROR_PATCHWELCOME;
 918     case FF_PROFILE_H264_HIGH_422:
 919     case FF_PROFILE_H264_HIGH_422_INTRA:
 920     case FF_PROFILE_H264_HIGH_444:
 921     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
 922     case FF_PROFILE_H264_HIGH_444_INTRA:
 923     case FF_PROFILE_H264_CAVLC_444:
 924         av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
 925                "are not supported.\n");
 926         return AVERROR_PATCHWELCOME;
 927     default:
 928         av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
 929                avctx->profile);
 930         return AVERROR(EINVAL);
 931     }
 932     if (opt->low_power) {
 933 #if VA_CHECK_VERSION(0, 39, 2)
 934         ctx->va_entrypoint = VAEntrypointEncSliceLP;
 935 #else
 936         av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
 937                "supported with this VAAPI version.\n");
 938         return AVERROR(EINVAL);
 939 #endif
 940     } else {
 941         ctx->va_entrypoint = VAEntrypointEncSlice;
 942     }
 943
 944     // Only 8-bit encode is supported.
 945     ctx->va_rt_format = VA_RT_FORMAT_YUV420;
 946
 947     if (avctx->bit_rate > 0) {
 948         if (avctx->rc_max_rate == avctx->bit_rate)
 949             ctx->va_rc_mode = VA_RC_CBR;
 950         else
 951             ctx->va_rc_mode = VA_RC_VBR;
 952     } else
 953         ctx->va_rc_mode = VA_RC_CQP;
 954
 955     ctx->va_packed_headers =
 956         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
 957         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
 958         VA_ENC_PACKED_HEADER_MISC;      // SEI.
 959
 960     ctx->surface_width  = FFALIGN(avctx->width,  16);
 961     ctx->surface_height = FFALIGN(avctx->height, 16);
 962
 963     return ff_vaapi_encode_init(avctx);
 964 }
 965
 966 static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
 967 {
 968     VAAPIEncodeContext *ctx = avctx->priv_data;
 969     VAAPIEncodeH264Context *priv = ctx->priv_data;
 970
 971     if (priv) {
 972         ff_cbs_close(&priv->cbc);
 973         av_freep(&priv->identifier_string);
 974     }
 975
 976     return ff_vaapi_encode_close(avctx);
 977 }
 978
 979 #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
 980                    offsetof(VAAPIEncodeH264Options, x))
 981 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
 982 static const AVOption vaapi_encode_h264_options[] = {
 983     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
 984       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
 985     { "quality", "Set encode quality (trades off against speed, higher is faster)",
 986       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
 987     { "low_power", "Use low-power encoding mode (experimental: only supported "
 988       "on some platforms, does not support all features)",
 989       OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
 990     { "coder", "Entropy coder type",
 991       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
 992         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
 993         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
 994         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
 995         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
 996
 997     { "aud", "Include AUD",
 998       OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
 999
1000     { "sei", "Set SEI to include",
1001       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1002       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1003       0, INT_MAX, FLAGS, "sei" },
1004     { "identifier", "Include encoder version identifier",
1005       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1006       INT_MIN, INT_MAX, FLAGS, "sei" },
1007     { "timing", "Include timing parameters (buffering_period and pic_timing)",
1008       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1009       INT_MIN, INT_MAX, FLAGS, "sei" },
1010     { "recovery_point", "Include recovery points where appropriate",
1011       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1012       INT_MIN, INT_MAX, FLAGS, "sei" },
1013     { NULL },
1014 };
1015
1016 static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1017     { "profile",        "100" },
1018     { "level",          "51"  },
1019     { "b",              "0"   },
1020     { "bf",             "2"   },
1021     { "g",              "120" },
1022     { "i_qfactor",      "1"   },
1023     { "i_qoffset",      "0"   },
1024     { "b_qfactor",      "6/5" },
1025     { "b_qoffset",      "0"   },
1026     { "qmin",           "0"   },
1027     { NULL },
1028 };
1029
1030 static const AVClass vaapi_encode_h264_class = {
1031     .class_name = "h264_vaapi",
1032     .item_name  = av_default_item_name,
1033     .option     = vaapi_encode_h264_options,
1034     .version    = LIBAVUTIL_VERSION_INT,
1035 };
1036
1037 AVCodec ff_h264_vaapi_encoder = {
1038     .name           = "h264_vaapi",
1039     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1040     .type           = AVMEDIA_TYPE_VIDEO,
1041     .id             = AV_CODEC_ID_H264,
1042     .priv_data_size = (sizeof(VAAPIEncodeContext) +
1043                        sizeof(VAAPIEncodeH264Options)),
1044     .init           = &vaapi_encode_h264_init,
1045     .encode2        = &ff_vaapi_encode2,
1046     .close          = &vaapi_encode_h264_close,
1047     .priv_class     = &vaapi_encode_h264_class,
1048     .capabilities   = AV_CODEC_CAP_DELAY,
1049     .defaults       = vaapi_encode_h264_defaults,
1050     .pix_fmts = (const enum AVPixelFormat[]) {
1051         AV_PIX_FMT_VAAPI,
1052         AV_PIX_FMT_NONE,
1053     },
1054 };