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     VAAPIEncodeContext common;
  51
  52     // User options.
  53     int qp;
  54     int quality;
  55     int low_power;
  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
 299     memset(&priv->current_access_unit, 0,
 300            sizeof(priv->current_access_unit));
 301
 302     memset(sps, 0, sizeof(*sps));
 303     memset(pps, 0, sizeof(*pps));
 304
 305     sps->nal_unit_header.nal_ref_idc   = 3;
 306     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
 307
 308     sps->profile_idc = avctx->profile & 0xff;
 309     sps->constraint_set1_flag =
 310         !!(avctx->profile & FF_PROFILE_H264_CONSTRAINED);
 311     sps->constraint_set3_flag =
 312         !!(avctx->profile & FF_PROFILE_H264_INTRA);
 313
 314     sps->level_idc = avctx->level;
 315
 316     sps->seq_parameter_set_id = 0;
 317     sps->chroma_format_idc    = 1;
 318
 319     sps->log2_max_frame_num_minus4 = 4;
 320     sps->pic_order_cnt_type        = 0;
 321     sps->log2_max_pic_order_cnt_lsb_minus4 =
 322         av_clip(av_log2(ctx->b_per_p + 1) - 2, 0, 12);
 323
 324     sps->max_num_ref_frames =
 325         (avctx->profile & FF_PROFILE_H264_INTRA) ? 0 :
 326         1 + (ctx->b_per_p > 0);
 327
 328     sps->pic_width_in_mbs_minus1        = priv->mb_width  - 1;
 329     sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
 330
 331     sps->frame_mbs_only_flag = 1;
 332     sps->direct_8x8_inference_flag = 1;
 333
 334     if (avctx->width  != 16 * priv->mb_width ||
 335         avctx->height != 16 * priv->mb_height) {
 336         sps->frame_cropping_flag = 1;
 337
 338         sps->frame_crop_left_offset   = 0;
 339         sps->frame_crop_right_offset  =
 340             (16 * priv->mb_width - avctx->width) / 2;
 341         sps->frame_crop_top_offset    = 0;
 342         sps->frame_crop_bottom_offset =
 343             (16 * priv->mb_height - avctx->height) / 2;
 344     } else {
 345         sps->frame_cropping_flag = 0;
 346     }
 347
 348     sps->vui_parameters_present_flag = 1;
 349
 350     if (avctx->sample_aspect_ratio.num != 0 &&
 351         avctx->sample_aspect_ratio.den != 0) {
 352         static const AVRational sar_idc[] = {
 353             {   0,  0 },
 354             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
 355             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
 356             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
 357             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
 358         };
 359         int i;
 360         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
 361             if (avctx->sample_aspect_ratio.num == sar_idc[i].num &&
 362                 avctx->sample_aspect_ratio.den == sar_idc[i].den) {
 363                 sps->vui.aspect_ratio_idc = i;
 364                 break;
 365             }
 366         }
 367         if (i >= FF_ARRAY_ELEMS(sar_idc)) {
 368             sps->vui.aspect_ratio_idc = 255;
 369             sps->vui.sar_width  = avctx->sample_aspect_ratio.num;
 370             sps->vui.sar_height = avctx->sample_aspect_ratio.den;
 371         }
 372         sps->vui.aspect_ratio_info_present_flag = 1;
 373     }
 374
 375     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
 376         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 377         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 378         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 379         sps->vui.video_signal_type_present_flag = 1;
 380         sps->vui.video_format      = 5; // Unspecified.
 381         sps->vui.video_full_range_flag =
 382             avctx->color_range == AVCOL_RANGE_JPEG;
 383
 384         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 385             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 386             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 387             sps->vui.colour_description_present_flag = 1;
 388             sps->vui.colour_primaries         = avctx->color_primaries;
 389             sps->vui.transfer_characteristics = avctx->color_trc;
 390             sps->vui.matrix_coefficients      = avctx->colorspace;
 391         }
 392     } else {
 393         sps->vui.video_format             = 5;
 394         sps->vui.video_full_range_flag    = 0;
 395         sps->vui.colour_primaries         = avctx->color_primaries;
 396         sps->vui.transfer_characteristics = avctx->color_trc;
 397         sps->vui.matrix_coefficients      = avctx->colorspace;
 398     }
 399
 400     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
 401         sps->vui.chroma_loc_info_present_flag = 1;
 402         sps->vui.chroma_sample_loc_type_top_field    =
 403         sps->vui.chroma_sample_loc_type_bottom_field =
 404             avctx->chroma_sample_location - 1;
 405     }
 406
 407     sps->vui.timing_info_present_flag = 1;
 408     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 409         sps->vui.num_units_in_tick = avctx->framerate.den;
 410         sps->vui.time_scale        = 2 * avctx->framerate.num;
 411         sps->vui.fixed_frame_rate_flag = 1;
 412     } else {
 413         sps->vui.num_units_in_tick = avctx->time_base.num;
 414         sps->vui.time_scale        = 2 * avctx->time_base.den;
 415         sps->vui.fixed_frame_rate_flag = 0;
 416     }
 417
 418     if (priv->sei & SEI_TIMING) {
 419         H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
 420         H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period;
 421
 422         sps->vui.nal_hrd_parameters_present_flag = 1;
 423
 424         hrd->cpb_cnt_minus1 = 0;
 425
 426         // Try to scale these to a sensible range so that the
 427         // golomb encode of the value is not overlong.
 428         hrd->bit_rate_scale =
 429             av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
 430         hrd->bit_rate_value_minus1[0] =
 431             (avctx->bit_rate >> hrd->bit_rate_scale + 6) - 1;
 432
 433         hrd->cpb_size_scale =
 434             av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
 435         hrd->cpb_size_value_minus1[0] =
 436             (ctx->hrd_params.hrd.buffer_size >> hrd->cpb_size_scale + 4) - 1;
 437
 438         // CBR mode as defined for the HRD cannot be achieved without filler
 439         // data, so this flag cannot be set even with VAAPI CBR modes.
 440         hrd->cbr_flag[0] = 0;
 441
 442         hrd->initial_cpb_removal_delay_length_minus1 = 23;
 443         hrd->cpb_removal_delay_length_minus1         = 23;
 444         hrd->dpb_output_delay_length_minus1          = 7;
 445         hrd->time_offset_length                      = 0;
 446
 447         bp->seq_parameter_set_id = sps->seq_parameter_set_id;
 448
 449         // This calculation can easily overflow 32 bits.
 450         bp->nal.initial_cpb_removal_delay[0] = 90000 *
 451             (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
 452             ctx->hrd_params.hrd.buffer_size;
 453         bp->nal.initial_cpb_removal_delay_offset[0] = 0;
 454     } else {
 455         sps->vui.nal_hrd_parameters_present_flag = 0;
 456         sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
 457     }
 458
 459     sps->vui.bitstream_restriction_flag    = 1;
 460     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
 461     sps->vui.log2_max_mv_length_horizontal = 16;
 462     sps->vui.log2_max_mv_length_vertical   = 16;
 463     sps->vui.max_num_reorder_frames        = (ctx->b_per_p > 0);
 464     sps->vui.max_dec_frame_buffering       = sps->max_num_ref_frames;
 465
 466     pps->nal_unit_header.nal_ref_idc = 3;
 467     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
 468
 469     pps->pic_parameter_set_id = 0;
 470     pps->seq_parameter_set_id = 0;
 471
 472     pps->entropy_coding_mode_flag =
 473         !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 474           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 475           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
 476     if (!priv->coder && pps->entropy_coding_mode_flag)
 477         pps->entropy_coding_mode_flag = 0;
 478
 479     pps->num_ref_idx_l0_default_active_minus1 = 0;
 480     pps->num_ref_idx_l1_default_active_minus1 = 0;
 481
 482     pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
 483
 484     if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 485         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 486         sps->profile_idc == FF_PROFILE_H264_MAIN) {
 487         pps->more_rbsp_data = 0;
 488     } else {
 489         pps->more_rbsp_data = 1;
 490
 491         pps->transform_8x8_mode_flag = 1;
 492     }
 493
 494     *vseq = (VAEncSequenceParameterBufferH264) {
 495         .seq_parameter_set_id = sps->seq_parameter_set_id,
 496         .level_idc        = sps->level_idc,
 497         .intra_period     = avctx->gop_size,
 498         .intra_idr_period = avctx->gop_size,
 499         .ip_period        = ctx->b_per_p + 1,
 500
 501         .bits_per_second       = avctx->bit_rate,
 502         .max_num_ref_frames    = sps->max_num_ref_frames,
 503         .picture_width_in_mbs  = sps->pic_width_in_mbs_minus1 + 1,
 504         .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
 505
 506         .seq_fields.bits = {
 507             .chroma_format_idc                 = sps->chroma_format_idc,
 508             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,
 509             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,
 510             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,
 511             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,
 512             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,
 513             .pic_order_cnt_type                = sps->pic_order_cnt_type,
 514             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
 515             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,
 516         },
 517
 518         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,
 519         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
 520
 521         .frame_cropping_flag      = sps->frame_cropping_flag,
 522         .frame_crop_left_offset   = sps->frame_crop_left_offset,
 523         .frame_crop_right_offset  = sps->frame_crop_right_offset,
 524         .frame_crop_top_offset    = sps->frame_crop_top_offset,
 525         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
 526
 527         .vui_parameters_present_flag = sps->vui_parameters_present_flag,
 528
 529         .vui_fields.bits = {
 530             .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
 531             .timing_info_present_flag       = sps->vui.timing_info_present_flag,
 532             .bitstream_restriction_flag     = sps->vui.bitstream_restriction_flag,
 533             .log2_max_mv_length_horizontal  = sps->vui.log2_max_mv_length_horizontal,
 534             .log2_max_mv_length_vertical    = sps->vui.log2_max_mv_length_vertical,
 535         },
 536
 537         .aspect_ratio_idc  = sps->vui.aspect_ratio_idc,
 538         .sar_width         = sps->vui.sar_width,
 539         .sar_height        = sps->vui.sar_height,
 540         .num_units_in_tick = sps->vui.num_units_in_tick,
 541         .time_scale        = sps->vui.time_scale,
 542     };
 543
 544     *vpic = (VAEncPictureParameterBufferH264) {
 545         .CurrPic = {
 546             .picture_id = VA_INVALID_ID,
 547             .flags      = VA_PICTURE_H264_INVALID,
 548         },
 549
 550         .coded_buf = VA_INVALID_ID,
 551
 552         .pic_parameter_set_id = pps->pic_parameter_set_id,
 553         .seq_parameter_set_id = pps->seq_parameter_set_id,
 554
 555         .pic_init_qp                  = pps->pic_init_qp_minus26 + 26,
 556         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
 557         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
 558
 559         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,
 560         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
 561
 562         .pic_fields.bits = {
 563             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,
 564             .weighted_pred_flag              = pps->weighted_pred_flag,
 565             .weighted_bipred_idc             = pps->weighted_bipred_idc,
 566             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,
 567             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,
 568             .deblocking_filter_control_present_flag =
 569                 pps->deblocking_filter_control_present_flag,
 570             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,
 571             .pic_order_present_flag          =
 572                 pps->bottom_field_pic_order_in_frame_present_flag,
 573             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
 574         },
 575     };
 576
 577     return 0;
 578 }
 579
 580 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
 581                                                  VAAPIEncodePicture *pic)
 582 {
 583     VAAPIEncodeContext               *ctx = avctx->priv_data;
 584     VAAPIEncodeH264Context          *priv = avctx->priv_data;
 585     H264RawSPS                       *sps = &priv->raw_sps;
 586     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 587     int i;
 588
 589     memset(&priv->current_access_unit, 0,
 590            sizeof(priv->current_access_unit));
 591
 592     if (pic->type == PICTURE_TYPE_IDR) {
 593         av_assert0(pic->display_order == pic->encode_order);
 594         priv->frame_num      = 0;
 595         priv->next_frame_num = 1;
 596         priv->cpb_delay      = 0;
 597         priv->last_idr_frame = pic->display_order;
 598         ++priv->idr_pic_count;
 599
 600         priv->slice_type       = 7;
 601         priv->primary_pic_type = 0;
 602     } else {
 603         priv->frame_num      = priv->next_frame_num;
 604
 605         if (pic->type != PICTURE_TYPE_B) {
 606             // Reference picture, so frame_num advances.
 607             priv->next_frame_num = (priv->frame_num + 1) &
 608                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 609         }
 610         ++priv->cpb_delay;
 611
 612         if (pic->type == PICTURE_TYPE_I) {
 613             priv->slice_type       = 7;
 614             priv->primary_pic_type = 0;
 615         } else if (pic->type == PICTURE_TYPE_P) {
 616             priv->slice_type       = 5;
 617             priv->primary_pic_type = 1;
 618         } else {
 619             priv->slice_type       = 6;
 620             priv->primary_pic_type = 2;
 621         }
 622     }
 623     priv->pic_order_cnt = pic->display_order - priv->last_idr_frame;
 624     priv->dpb_delay     = pic->display_order - pic->encode_order + 1;
 625
 626     if (priv->aud) {
 627         priv->aud_needed = 1;
 628         priv->raw_aud = (H264RawAUD) {
 629             .nal_unit_header = {
 630                 .nal_unit_type = H264_NAL_AUD,
 631             },
 632             .primary_pic_type  = priv->primary_pic_type,
 633         };
 634     } else {
 635         priv->aud_needed = 0;
 636     }
 637
 638     priv->sei_needed = 0;
 639
 640     if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)
 641         priv->sei_needed |= SEI_IDENTIFIER;
 642 #if !CONFIG_VAAPI_1
 643     if (ctx->va_rc_mode == VA_RC_CBR)
 644         priv->sei_cbr_workaround_needed = 1;
 645 #endif
 646
 647     if (priv->sei & SEI_TIMING) {
 648         priv->sei_pic_timing = (H264RawSEIPicTiming) {
 649             .cpb_removal_delay = 2 * priv->cpb_delay,
 650             .dpb_output_delay  = 2 * priv->dpb_delay,
 651         };
 652
 653         priv->sei_needed |= SEI_TIMING;
 654     }
 655
 656     if (priv->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
 657         priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {
 658             .recovery_frame_cnt = 0,
 659             .exact_match_flag   = 1,
 660             .broken_link_flag   = ctx->b_per_p > 0,
 661         };
 662
 663         priv->sei_needed |= SEI_RECOVERY_POINT;
 664     }
 665
 666     vpic->CurrPic = (VAPictureH264) {
 667         .picture_id          = pic->recon_surface,
 668         .frame_idx           = priv->frame_num,
 669         .flags               = 0,
 670         .TopFieldOrderCnt    = priv->pic_order_cnt,
 671         .BottomFieldOrderCnt = priv->pic_order_cnt,
 672     };
 673
 674     for (i = 0; i < pic->nb_refs; i++) {
 675         VAAPIEncodePicture *ref = pic->refs[i];
 676         unsigned int frame_num = (ref->encode_order - priv->last_idr_frame) &
 677             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 678         unsigned int pic_order_cnt = ref->display_order - priv->last_idr_frame;
 679
 680         av_assert0(ref && ref->encode_order < pic->encode_order);
 681         vpic->ReferenceFrames[i] = (VAPictureH264) {
 682             .picture_id          = ref->recon_surface,
 683             .frame_idx           = frame_num,
 684             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
 685             .TopFieldOrderCnt    = pic_order_cnt,
 686             .BottomFieldOrderCnt = pic_order_cnt,
 687         };
 688     }
 689     for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
 690         vpic->ReferenceFrames[i] = (VAPictureH264) {
 691             .picture_id = VA_INVALID_ID,
 692             .flags      = VA_PICTURE_H264_INVALID,
 693         };
 694     }
 695
 696     vpic->coded_buf = pic->output_buffer;
 697
 698     vpic->frame_num = priv->frame_num;
 699
 700     vpic->pic_fields.bits.idr_pic_flag       = (pic->type == PICTURE_TYPE_IDR);
 701     vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
 702
 703     pic->nb_slices = 1;
 704
 705     return 0;
 706 }
 707
 708 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
 709                                                VAAPIEncodePicture *pic,
 710                                                VAAPIEncodeSlice *slice)
 711 {
 712     VAAPIEncodeH264Context          *priv = avctx->priv_data;
 713     H264RawSPS                       *sps = &priv->raw_sps;
 714     H264RawPPS                       *pps = &priv->raw_pps;
 715     H264RawSliceHeader                *sh = &priv->raw_slice.header;
 716     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 717     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
 718     int i;
 719
 720     if (pic->type == PICTURE_TYPE_IDR) {
 721         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
 722         sh->nal_unit_header.nal_ref_idc   = 3;
 723     } else {
 724         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
 725         sh->nal_unit_header.nal_ref_idc   = pic->type != PICTURE_TYPE_B;
 726     }
 727
 728     // Only one slice per frame.
 729     sh->first_mb_in_slice = 0;
 730     sh->slice_type        = priv->slice_type;
 731
 732     sh->pic_parameter_set_id = pps->pic_parameter_set_id;
 733
 734     sh->frame_num  = priv->frame_num;
 735     sh->idr_pic_id = priv->idr_pic_count;
 736
 737     sh->pic_order_cnt_lsb = priv->pic_order_cnt &
 738         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
 739
 740     sh->direct_spatial_mv_pred_flag = 1;
 741
 742     if (pic->type == PICTURE_TYPE_B)
 743         sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
 744     else if (pic->type == PICTURE_TYPE_P)
 745         sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
 746     else
 747         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
 748
 749
 750     vslice->macroblock_address = sh->first_mb_in_slice;
 751     vslice->num_macroblocks    = priv->mb_width * priv->mb_height;
 752
 753     vslice->macroblock_info = VA_INVALID_ID;
 754
 755     vslice->slice_type           = sh->slice_type % 5;
 756     vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
 757     vslice->idr_pic_id           = sh->idr_pic_id;
 758
 759     vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
 760
 761     vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
 762
 763     for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
 764         vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
 765         vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;
 766         vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
 767         vslice->RefPicList1[i].flags      = VA_PICTURE_H264_INVALID;
 768     }
 769
 770     av_assert0(pic->nb_refs <= 2);
 771     if (pic->nb_refs >= 1) {
 772         // Backward reference for P- or B-frame.
 773         av_assert0(pic->type == PICTURE_TYPE_P ||
 774                    pic->type == PICTURE_TYPE_B);
 775         vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
 776     }
 777     if (pic->nb_refs >= 2) {
 778         // Forward reference for B-frame.
 779         av_assert0(pic->type == PICTURE_TYPE_B);
 780         vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
 781     }
 782
 783     vslice->slice_qp_delta = sh->slice_qp_delta;
 784
 785     return 0;
 786 }
 787
 788 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
 789 {
 790     VAAPIEncodeContext      *ctx = avctx->priv_data;
 791     VAAPIEncodeH264Context *priv = avctx->priv_data;
 792     int err;
 793
 794     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
 795     if (err < 0)
 796         return err;
 797
 798     priv->mb_width  = FFALIGN(avctx->width,  16) / 16;
 799     priv->mb_height = FFALIGN(avctx->height, 16) / 16;
 800
 801     if (ctx->va_rc_mode == VA_RC_CQP) {
 802         priv->fixed_qp_p = priv->qp;
 803         if (avctx->i_quant_factor > 0.0)
 804             priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
 805                                         avctx->i_quant_offset) + 0.5);
 806         else
 807             priv->fixed_qp_idr = priv->fixed_qp_p;
 808         if (avctx->b_quant_factor > 0.0)
 809             priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
 810                                       avctx->b_quant_offset) + 0.5);
 811         else
 812             priv->fixed_qp_b = priv->fixed_qp_p;
 813
 814         priv->sei &= ~SEI_TIMING;
 815
 816         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
 817                "%d / %d / %d for IDR- / P- / B-frames.\n",
 818                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
 819
 820     } else if (ctx->va_rc_mode == VA_RC_CBR ||
 821                ctx->va_rc_mode == VA_RC_VBR) {
 822         // These still need to be  set for pic_init_qp/slice_qp_delta.
 823         priv->fixed_qp_idr = 26;
 824         priv->fixed_qp_p   = 26;
 825         priv->fixed_qp_b   = 26;
 826
 827         av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n",
 828                ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable",
 829                avctx->bit_rate);
 830
 831     } else {
 832         av_assert0(0 && "Invalid RC mode.");
 833     }
 834
 835     if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
 836         avctx->compression_level = priv->quality;
 837
 838     if (priv->sei & SEI_IDENTIFIER) {
 839         const char *lavc  = LIBAVCODEC_IDENT;
 840         const char *vaapi = VA_VERSION_S;
 841         const char *driver;
 842         int len;
 843
 844         memcpy(priv->sei_identifier.uuid_iso_iec_11578,
 845                vaapi_encode_h264_sei_identifier_uuid,
 846                sizeof(priv->sei_identifier.uuid_iso_iec_11578));
 847
 848         driver = vaQueryVendorString(ctx->hwctx->display);
 849         if (!driver)
 850             driver = "unknown driver";
 851
 852         len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
 853         if (len >= 0) {
 854             priv->sei_identifier_string = av_malloc(len + 1);
 855             if (!priv->sei_identifier_string)
 856                 return AVERROR(ENOMEM);
 857
 858             snprintf(priv->sei_identifier_string, len + 1,
 859                      "%s / VAAPI %s / %s", lavc, vaapi, driver);
 860
 861             priv->sei_identifier.data        = priv->sei_identifier_string;
 862             priv->sei_identifier.data_length = len + 1;
 863         }
 864     }
 865
 866     return 0;
 867 }
 868
 869 static const VAAPIEncodeType vaapi_encode_type_h264 = {
 870     .configure             = &vaapi_encode_h264_configure,
 871
 872     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),
 873     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,
 874
 875     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),
 876     .init_picture_params   = &vaapi_encode_h264_init_picture_params,
 877
 878     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),
 879     .init_slice_params     = &vaapi_encode_h264_init_slice_params,
 880
 881     .sequence_header_type  = VAEncPackedHeaderSequence,
 882     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
 883
 884     .slice_header_type     = VAEncPackedHeaderH264_Slice,
 885     .write_slice_header    = &vaapi_encode_h264_write_slice_header,
 886
 887     .write_extra_header    = &vaapi_encode_h264_write_extra_header,
 888 };
 889
 890 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
 891 {
 892     VAAPIEncodeContext      *ctx = avctx->priv_data;
 893     VAAPIEncodeH264Context *priv = avctx->priv_data;
 894
 895     ctx->codec = &vaapi_encode_type_h264;
 896
 897     if (avctx->profile == FF_PROFILE_UNKNOWN)
 898         avctx->profile = priv->profile;
 899     if (avctx->level == FF_LEVEL_UNKNOWN)
 900         avctx->level = priv->level;
 901
 902     switch (avctx->profile) {
 903     case FF_PROFILE_H264_BASELINE:
 904         av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
 905                "supported, using constrained baseline profile instead.\n");
 906         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
 907     case FF_PROFILE_H264_CONSTRAINED_BASELINE:
 908         ctx->va_profile = VAProfileH264ConstrainedBaseline;
 909         if (avctx->max_b_frames != 0) {
 910             avctx->max_b_frames = 0;
 911             av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline profile "
 912                    "doesn't support encoding with B frames, disabling them.\n");
 913         }
 914         break;
 915     case FF_PROFILE_H264_MAIN:
 916         ctx->va_profile = VAProfileH264Main;
 917         break;
 918     case FF_PROFILE_H264_EXTENDED:
 919         av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
 920                "is not supported.\n");
 921         return AVERROR_PATCHWELCOME;
 922     case FF_PROFILE_UNKNOWN:
 923     case FF_PROFILE_H264_HIGH:
 924         ctx->va_profile = VAProfileH264High;
 925         break;
 926     case FF_PROFILE_H264_HIGH_10:
 927     case FF_PROFILE_H264_HIGH_10_INTRA:
 928         av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
 929                "are not supported.\n");
 930         return AVERROR_PATCHWELCOME;
 931     case FF_PROFILE_H264_HIGH_422:
 932     case FF_PROFILE_H264_HIGH_422_INTRA:
 933     case FF_PROFILE_H264_HIGH_444:
 934     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
 935     case FF_PROFILE_H264_HIGH_444_INTRA:
 936     case FF_PROFILE_H264_CAVLC_444:
 937         av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
 938                "are not supported.\n");
 939         return AVERROR_PATCHWELCOME;
 940     default:
 941         av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
 942                avctx->profile);
 943         return AVERROR(EINVAL);
 944     }
 945     if (priv->low_power) {
 946 #if VA_CHECK_VERSION(0, 39, 2)
 947         ctx->va_entrypoint = VAEntrypointEncSliceLP;
 948 #else
 949         av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
 950                "supported with this VAAPI version.\n");
 951         return AVERROR(EINVAL);
 952 #endif
 953     } else {
 954         ctx->va_entrypoint = VAEntrypointEncSlice;
 955     }
 956
 957     // Only 8-bit encode is supported.
 958     ctx->va_rt_format = VA_RT_FORMAT_YUV420;
 959
 960     if (avctx->bit_rate > 0) {
 961         if (avctx->rc_max_rate == avctx->bit_rate)
 962             ctx->va_rc_mode = VA_RC_CBR;
 963         else
 964             ctx->va_rc_mode = VA_RC_VBR;
 965     } else
 966         ctx->va_rc_mode = VA_RC_CQP;
 967
 968     ctx->va_packed_headers =
 969         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
 970         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
 971         VA_ENC_PACKED_HEADER_MISC;      // SEI.
 972
 973     ctx->surface_width  = FFALIGN(avctx->width,  16);
 974     ctx->surface_height = FFALIGN(avctx->height, 16);
 975
 976     return ff_vaapi_encode_init(avctx);
 977 }
 978
 979 static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
 980 {
 981     VAAPIEncodeH264Context *priv = avctx->priv_data;
 982
 983     ff_cbs_close(&priv->cbc);
 984     av_freep(&priv->sei_identifier_string);
 985
 986     return ff_vaapi_encode_close(avctx);
 987 }
 988
 989 #define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)
 990 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
 991 static const AVOption vaapi_encode_h264_options[] = {
 992     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
 993       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
 994     { "quality", "Set encode quality (trades off against speed, higher is faster)",
 995       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
 996     { "low_power", "Use low-power encoding mode (experimental: only supported "
 997       "on some platforms, does not support all features)",
 998       OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
 999     { "coder", "Entropy coder type",
1000       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
1001         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1002         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1003         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1004         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1005
1006     { "aud", "Include AUD",
1007       OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
1008
1009     { "sei", "Set SEI to include",
1010       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1011       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1012       0, INT_MAX, FLAGS, "sei" },
1013     { "identifier", "Include encoder version identifier",
1014       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1015       INT_MIN, INT_MAX, FLAGS, "sei" },
1016     { "timing", "Include timing parameters (buffering_period and pic_timing)",
1017       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1018       INT_MIN, INT_MAX, FLAGS, "sei" },
1019     { "recovery_point", "Include recovery points where appropriate",
1020       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1021       INT_MIN, INT_MAX, FLAGS, "sei" },
1022
1023     { "profile", "Set profile (profile_idc and constraint_set*_flag)",
1024       OFFSET(profile), AV_OPT_TYPE_INT,
1025       { .i64 = FF_PROFILE_H264_HIGH }, 0x0000, 0xffff, FLAGS, "profile" },
1026
1027 #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1028       { .i64 = value }, 0, 0, FLAGS, "profile"
1029     { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
1030     { PROFILE("main",                 FF_PROFILE_H264_MAIN) },
1031     { PROFILE("high",                 FF_PROFILE_H264_HIGH) },
1032 #undef PROFILE
1033
1034     { "level", "Set level (level_idc)",
1035       OFFSET(level), AV_OPT_TYPE_INT,
1036       { .i64 = 51 }, 0x00, 0xff, FLAGS, "level" },
1037
1038 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1039       { .i64 = value }, 0, 0, FLAGS, "level"
1040     { LEVEL("1",   10) },
1041     { LEVEL("1.1", 11) },
1042     { LEVEL("1.2", 12) },
1043     { LEVEL("1.3", 13) },
1044     { LEVEL("2",   20) },
1045     { LEVEL("2.1", 21) },
1046     { LEVEL("2.2", 22) },
1047     { LEVEL("3",   30) },
1048     { LEVEL("3.1", 31) },
1049     { LEVEL("3.2", 32) },
1050     { LEVEL("4",   40) },
1051     { LEVEL("4.1", 41) },
1052     { LEVEL("4.2", 42) },
1053     { LEVEL("5",   50) },
1054     { LEVEL("5.1", 51) },
1055     { LEVEL("5.2", 52) },
1056     { LEVEL("6",   60) },
1057     { LEVEL("6.1", 61) },
1058     { LEVEL("6.2", 62) },
1059 #undef LEVEL
1060
1061     { NULL },
1062 };
1063
1064 static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1065     { "b",              "0"   },
1066     { "bf",             "2"   },
1067     { "g",              "120" },
1068     { "i_qfactor",      "1"   },
1069     { "i_qoffset",      "0"   },
1070     { "b_qfactor",      "6/5" },
1071     { "b_qoffset",      "0"   },
1072     { "qmin",           "0"   },
1073     { NULL },
1074 };
1075
1076 static const AVClass vaapi_encode_h264_class = {
1077     .class_name = "h264_vaapi",
1078     .item_name  = av_default_item_name,
1079     .option     = vaapi_encode_h264_options,
1080     .version    = LIBAVUTIL_VERSION_INT,
1081 };
1082
1083 AVCodec ff_h264_vaapi_encoder = {
1084     .name           = "h264_vaapi",
1085     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1086     .type           = AVMEDIA_TYPE_VIDEO,
1087     .id             = AV_CODEC_ID_H264,
1088     .priv_data_size = sizeof(VAAPIEncodeH264Context),
1089     .init           = &vaapi_encode_h264_init,
1090     .encode2        = &ff_vaapi_encode2,
1091     .close          = &vaapi_encode_h264_close,
1092     .priv_class     = &vaapi_encode_h264_class,
1093     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1094     .defaults       = vaapi_encode_h264_defaults,
1095     .pix_fmts = (const enum AVPixelFormat[]) {
1096         AV_PIX_FMT_VAAPI,
1097         AV_PIX_FMT_NONE,
1098     },
1099     .wrapper_name   = "vaapi",
1100 };