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     int profile;
  97     int level;
  98 } VAAPIEncodeH264Options;
  99
 100
 101 static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
 102                                                char *data, size_t *data_len,
 103                                                CodedBitstreamFragment *au)
 104 {
 105     VAAPIEncodeContext      *ctx = avctx->priv_data;
 106     VAAPIEncodeH264Context *priv = ctx->priv_data;
 107     int err;
 108
 109     err = ff_cbs_write_fragment_data(priv->cbc, au);
 110     if (err < 0) {
 111         av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
 112         return err;
 113     }
 114
 115     if (*data_len < 8 * au->data_size - au->data_bit_padding) {
 116         av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
 117                "%zu < %zu.\n", *data_len,
 118                8 * au->data_size - au->data_bit_padding);
 119         return AVERROR(ENOSPC);
 120     }
 121
 122     memcpy(data, au->data, au->data_size);
 123     *data_len = 8 * au->data_size - au->data_bit_padding;
 124
 125     return 0;
 126 }
 127
 128 static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,
 129                                      CodedBitstreamFragment *au,
 130                                      void *nal_unit)
 131 {
 132     VAAPIEncodeContext      *ctx = avctx->priv_data;
 133     VAAPIEncodeH264Context *priv = ctx->priv_data;
 134     H264RawNALUnitHeader *header = nal_unit;
 135     int err;
 136
 137     err = ff_cbs_insert_unit_content(priv->cbc, au, -1,
 138                                      header->nal_unit_type, nal_unit, NULL);
 139     if (err < 0) {
 140         av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
 141                "type = %d.\n", header->nal_unit_type);
 142         return err;
 143     }
 144
 145     return 0;
 146 }
 147
 148 static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
 149                                                    char *data, size_t *data_len)
 150 {
 151     VAAPIEncodeContext      *ctx = avctx->priv_data;
 152     VAAPIEncodeH264Context *priv = ctx->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->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->sps);
 164     if (err < 0)
 165         goto fail;
 166
 167     err = vaapi_encode_h264_add_nal(avctx, au, &priv->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     VAAPIEncodeContext      *ctx = avctx->priv_data;
 183     VAAPIEncodeH264Context *priv = ctx->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->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->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     VAAPIEncodeContext      *ctx = avctx->priv_data;
 210     VAAPIEncodeH264Context *priv = ctx->priv_data;
 211     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 212     CodedBitstreamFragment   *au = &priv->current_access_unit;
 213     int err, i;
 214
 215     if (priv->sei_needed) {
 216         if (priv->aud_needed) {
 217             err = vaapi_encode_h264_add_nal(avctx, au, &priv->aud);
 218             if (err < 0)
 219                 goto fail;
 220             priv->aud_needed = 0;
 221         }
 222
 223         memset(&priv->sei, 0, sizeof(priv->sei));
 224         priv->sei.nal_unit_header.nal_unit_type = H264_NAL_SEI;
 225
 226         i = 0;
 227         if (pic->encode_order == 0 && opt->sei & SEI_IDENTIFIER) {
 228             priv->sei.payload[i].payload_type = H264_SEI_TYPE_USER_DATA_UNREGISTERED;
 229             priv->sei.payload[i].payload.user_data_unregistered = priv->identifier;
 230             ++i;
 231         }
 232         if (opt->sei & SEI_TIMING) {
 233             if (pic->type == PICTURE_TYPE_IDR) {
 234                 priv->sei.payload[i].payload_type = H264_SEI_TYPE_BUFFERING_PERIOD;
 235                 priv->sei.payload[i].payload.buffering_period = priv->buffering_period;
 236                 ++i;
 237             }
 238             priv->sei.payload[i].payload_type = H264_SEI_TYPE_PIC_TIMING;
 239             priv->sei.payload[i].payload.pic_timing = priv->pic_timing;
 240             ++i;
 241         }
 242         if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
 243             priv->sei.payload[i].payload_type = H264_SEI_TYPE_RECOVERY_POINT;
 244             priv->sei.payload[i].payload.recovery_point = priv->recovery_point;
 245             ++i;
 246         }
 247
 248         priv->sei.payload_count = i;
 249         av_assert0(priv->sei.payload_count > 0);
 250
 251         err = vaapi_encode_h264_add_nal(avctx, au, &priv->sei);
 252         if (err < 0)
 253             goto fail;
 254         priv->sei_needed = 0;
 255
 256         err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
 257         if (err < 0)
 258             goto fail;
 259
 260         ff_cbs_fragment_uninit(priv->cbc, au);
 261
 262         *type = VAEncPackedHeaderRawData;
 263         return 0;
 264
 265 #if !CONFIG_VAAPI_1
 266     } else if (priv->sei_cbr_workaround_needed) {
 267         // Insert a zero-length header using the old SEI type.  This is
 268         // required to avoid triggering broken behaviour on Intel platforms
 269         // in CBR mode where an invalid SEI message is generated by the
 270         // driver and inserted into the stream.
 271         *data_len = 0;
 272         *type = VAEncPackedHeaderH264_SEI;
 273         priv->sei_cbr_workaround_needed = 0;
 274         return 0;
 275 #endif
 276
 277     } else {
 278         return AVERROR_EOF;
 279     }
 280
 281 fail:
 282     ff_cbs_fragment_uninit(priv->cbc, au);
 283     return err;
 284 }
 285
 286 static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
 287 {
 288     VAAPIEncodeContext                *ctx = avctx->priv_data;
 289     VAAPIEncodeH264Context           *priv = ctx->priv_data;
 290     VAAPIEncodeH264Options            *opt = ctx->codec_options;
 291     H264RawSPS                        *sps = &priv->sps;
 292     H264RawPPS                        *pps = &priv->pps;
 293     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
 294     VAEncPictureParameterBufferH264  *vpic = ctx->codec_picture_params;
 295
 296     memset(&priv->current_access_unit, 0,
 297            sizeof(priv->current_access_unit));
 298
 299     memset(sps, 0, sizeof(*sps));
 300     memset(pps, 0, sizeof(*pps));
 301
 302     sps->nal_unit_header.nal_ref_idc   = 3;
 303     sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
 304
 305     sps->profile_idc = avctx->profile & 0xff;
 306     sps->constraint_set1_flag =
 307         !!(avctx->profile & FF_PROFILE_H264_CONSTRAINED);
 308     sps->constraint_set3_flag =
 309         !!(avctx->profile & FF_PROFILE_H264_INTRA);
 310
 311     sps->level_idc = avctx->level;
 312
 313     sps->seq_parameter_set_id = 0;
 314     sps->chroma_format_idc    = 1;
 315
 316     sps->log2_max_frame_num_minus4 = 4;
 317     sps->pic_order_cnt_type        = 0;
 318     sps->log2_max_pic_order_cnt_lsb_minus4 =
 319         av_clip(av_log2(ctx->b_per_p + 1) - 2, 0, 12);
 320
 321     sps->max_num_ref_frames =
 322         (avctx->profile & FF_PROFILE_H264_INTRA) ? 0 :
 323         1 + (ctx->b_per_p > 0);
 324
 325     sps->pic_width_in_mbs_minus1        = priv->mb_width  - 1;
 326     sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
 327
 328     sps->frame_mbs_only_flag = 1;
 329     sps->direct_8x8_inference_flag = 1;
 330
 331     if (avctx->width  != 16 * priv->mb_width ||
 332         avctx->height != 16 * priv->mb_height) {
 333         sps->frame_cropping_flag = 1;
 334
 335         sps->frame_crop_left_offset   = 0;
 336         sps->frame_crop_right_offset  =
 337             (16 * priv->mb_width - avctx->width) / 2;
 338         sps->frame_crop_top_offset    = 0;
 339         sps->frame_crop_bottom_offset =
 340             (16 * priv->mb_height - avctx->height) / 2;
 341     } else {
 342         sps->frame_cropping_flag = 0;
 343     }
 344
 345     sps->vui_parameters_present_flag = 1;
 346
 347     if (avctx->sample_aspect_ratio.num != 0 &&
 348         avctx->sample_aspect_ratio.den != 0) {
 349         static const AVRational sar_idc[] = {
 350             {   0,  0 },
 351             {   1,  1 }, {  12, 11 }, {  10, 11 }, {  16, 11 },
 352             {  40, 33 }, {  24, 11 }, {  20, 11 }, {  32, 11 },
 353             {  80, 33 }, {  18, 11 }, {  15, 11 }, {  64, 33 },
 354             { 160, 99 }, {   4,  3 }, {   3,  2 }, {   2,  1 },
 355         };
 356         int i;
 357         for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
 358             if (avctx->sample_aspect_ratio.num == sar_idc[i].num &&
 359                 avctx->sample_aspect_ratio.den == sar_idc[i].den) {
 360                 sps->vui.aspect_ratio_idc = i;
 361                 break;
 362             }
 363         }
 364         if (i >= FF_ARRAY_ELEMS(sar_idc)) {
 365             sps->vui.aspect_ratio_idc = 255;
 366             sps->vui.sar_width  = avctx->sample_aspect_ratio.num;
 367             sps->vui.sar_height = avctx->sample_aspect_ratio.den;
 368         }
 369         sps->vui.aspect_ratio_info_present_flag = 1;
 370     }
 371
 372     if (avctx->color_range     != AVCOL_RANGE_UNSPECIFIED ||
 373         avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 374         avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 375         avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 376         sps->vui.video_signal_type_present_flag = 1;
 377         sps->vui.video_format      = 5; // Unspecified.
 378         sps->vui.video_full_range_flag =
 379             avctx->color_range == AVCOL_RANGE_JPEG;
 380
 381         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 382             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 383             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 384             sps->vui.colour_description_present_flag = 1;
 385             sps->vui.colour_primaries         = avctx->color_primaries;
 386             sps->vui.transfer_characteristics = avctx->color_trc;
 387             sps->vui.matrix_coefficients      = avctx->colorspace;
 388         }
 389     } else {
 390         sps->vui.video_format             = 5;
 391         sps->vui.video_full_range_flag    = 0;
 392         sps->vui.colour_primaries         = avctx->color_primaries;
 393         sps->vui.transfer_characteristics = avctx->color_trc;
 394         sps->vui.matrix_coefficients      = avctx->colorspace;
 395     }
 396
 397     if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
 398         sps->vui.chroma_loc_info_present_flag = 1;
 399         sps->vui.chroma_sample_loc_type_top_field    =
 400         sps->vui.chroma_sample_loc_type_bottom_field =
 401             avctx->chroma_sample_location - 1;
 402     }
 403
 404     sps->vui.timing_info_present_flag = 1;
 405     if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 406         sps->vui.num_units_in_tick = avctx->framerate.den;
 407         sps->vui.time_scale        = 2 * avctx->framerate.num;
 408         sps->vui.fixed_frame_rate_flag = 1;
 409     } else {
 410         sps->vui.num_units_in_tick = avctx->time_base.num;
 411         sps->vui.time_scale        = 2 * avctx->time_base.den;
 412         sps->vui.fixed_frame_rate_flag = 0;
 413     }
 414
 415     if (opt->sei & SEI_TIMING) {
 416         H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
 417
 418         sps->vui.nal_hrd_parameters_present_flag = 1;
 419
 420         hrd->cpb_cnt_minus1 = 0;
 421
 422         // Try to scale these to a sensible range so that the
 423         // golomb encode of the value is not overlong.
 424         hrd->bit_rate_scale =
 425             av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
 426         hrd->bit_rate_value_minus1[0] =
 427             (avctx->bit_rate >> hrd->bit_rate_scale + 6) - 1;
 428
 429         hrd->cpb_size_scale =
 430             av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
 431         hrd->cpb_size_value_minus1[0] =
 432             (ctx->hrd_params.hrd.buffer_size >> hrd->cpb_size_scale + 4) - 1;
 433
 434         // CBR mode as defined for the HRD cannot be achieved without filler
 435         // data, so this flag cannot be set even with VAAPI CBR modes.
 436         hrd->cbr_flag[0] = 0;
 437
 438         hrd->initial_cpb_removal_delay_length_minus1 = 23;
 439         hrd->cpb_removal_delay_length_minus1         = 23;
 440         hrd->dpb_output_delay_length_minus1          = 7;
 441         hrd->time_offset_length                      = 0;
 442
 443         priv->buffering_period.seq_parameter_set_id = sps->seq_parameter_set_id;
 444
 445         // This calculation can easily overflow 32 bits.
 446         priv->buffering_period.nal.initial_cpb_removal_delay[0] = 90000 *
 447             (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
 448             ctx->hrd_params.hrd.buffer_size;
 449         priv->buffering_period.nal.initial_cpb_removal_delay_offset[0] = 0;
 450     } else {
 451         sps->vui.nal_hrd_parameters_present_flag = 0;
 452         sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
 453     }
 454
 455     sps->vui.bitstream_restriction_flag    = 1;
 456     sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
 457     sps->vui.log2_max_mv_length_horizontal = 16;
 458     sps->vui.log2_max_mv_length_vertical   = 16;
 459     sps->vui.max_num_reorder_frames        = (ctx->b_per_p > 0);
 460     sps->vui.max_dec_frame_buffering       = sps->max_num_ref_frames;
 461
 462     pps->nal_unit_header.nal_ref_idc = 3;
 463     pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
 464
 465     pps->pic_parameter_set_id = 0;
 466     pps->seq_parameter_set_id = 0;
 467
 468     pps->entropy_coding_mode_flag =
 469         !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 470           sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 471           sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
 472     if (!opt->coder && pps->entropy_coding_mode_flag)
 473         pps->entropy_coding_mode_flag = 0;
 474
 475     pps->num_ref_idx_l0_default_active_minus1 = 0;
 476     pps->num_ref_idx_l1_default_active_minus1 = 0;
 477
 478     pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
 479
 480     if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
 481         sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
 482         sps->profile_idc == FF_PROFILE_H264_MAIN) {
 483         pps->more_rbsp_data = 0;
 484     } else {
 485         pps->more_rbsp_data = 1;
 486
 487         pps->transform_8x8_mode_flag = 1;
 488     }
 489
 490     *vseq = (VAEncSequenceParameterBufferH264) {
 491         .seq_parameter_set_id = sps->seq_parameter_set_id,
 492         .level_idc        = sps->level_idc,
 493         .intra_period     = avctx->gop_size,
 494         .intra_idr_period = avctx->gop_size,
 495         .ip_period        = ctx->b_per_p + 1,
 496
 497         .bits_per_second       = avctx->bit_rate,
 498         .max_num_ref_frames    = sps->max_num_ref_frames,
 499         .picture_width_in_mbs  = sps->pic_width_in_mbs_minus1 + 1,
 500         .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
 501
 502         .seq_fields.bits = {
 503             .chroma_format_idc                 = sps->chroma_format_idc,
 504             .frame_mbs_only_flag               = sps->frame_mbs_only_flag,
 505             .mb_adaptive_frame_field_flag      = sps->mb_adaptive_frame_field_flag,
 506             .seq_scaling_matrix_present_flag   = sps->seq_scaling_matrix_present_flag,
 507             .direct_8x8_inference_flag         = sps->direct_8x8_inference_flag,
 508             .log2_max_frame_num_minus4         = sps->log2_max_frame_num_minus4,
 509             .pic_order_cnt_type                = sps->pic_order_cnt_type,
 510             .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
 511             .delta_pic_order_always_zero_flag  = sps->delta_pic_order_always_zero_flag,
 512         },
 513
 514         .bit_depth_luma_minus8   = sps->bit_depth_luma_minus8,
 515         .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
 516
 517         .frame_cropping_flag      = sps->frame_cropping_flag,
 518         .frame_crop_left_offset   = sps->frame_crop_left_offset,
 519         .frame_crop_right_offset  = sps->frame_crop_right_offset,
 520         .frame_crop_top_offset    = sps->frame_crop_top_offset,
 521         .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
 522
 523         .vui_parameters_present_flag = sps->vui_parameters_present_flag,
 524
 525         .vui_fields.bits = {
 526             .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
 527             .timing_info_present_flag       = sps->vui.timing_info_present_flag,
 528             .bitstream_restriction_flag     = sps->vui.bitstream_restriction_flag,
 529             .log2_max_mv_length_horizontal  = sps->vui.log2_max_mv_length_horizontal,
 530             .log2_max_mv_length_vertical    = sps->vui.log2_max_mv_length_vertical,
 531         },
 532
 533         .aspect_ratio_idc  = sps->vui.aspect_ratio_idc,
 534         .sar_width         = sps->vui.sar_width,
 535         .sar_height        = sps->vui.sar_height,
 536         .num_units_in_tick = sps->vui.num_units_in_tick,
 537         .time_scale        = sps->vui.time_scale,
 538     };
 539
 540     *vpic = (VAEncPictureParameterBufferH264) {
 541         .CurrPic = {
 542             .picture_id = VA_INVALID_ID,
 543             .flags      = VA_PICTURE_H264_INVALID,
 544         },
 545
 546         .coded_buf = VA_INVALID_ID,
 547
 548         .pic_parameter_set_id = pps->pic_parameter_set_id,
 549         .seq_parameter_set_id = pps->seq_parameter_set_id,
 550
 551         .pic_init_qp                  = pps->pic_init_qp_minus26 + 26,
 552         .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
 553         .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
 554
 555         .chroma_qp_index_offset        = pps->chroma_qp_index_offset,
 556         .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
 557
 558         .pic_fields.bits = {
 559             .entropy_coding_mode_flag        = pps->entropy_coding_mode_flag,
 560             .weighted_pred_flag              = pps->weighted_pred_flag,
 561             .weighted_bipred_idc             = pps->weighted_bipred_idc,
 562             .constrained_intra_pred_flag     = pps->constrained_intra_pred_flag,
 563             .transform_8x8_mode_flag         = pps->transform_8x8_mode_flag,
 564             .deblocking_filter_control_present_flag =
 565                 pps->deblocking_filter_control_present_flag,
 566             .redundant_pic_cnt_present_flag  = pps->redundant_pic_cnt_present_flag,
 567             .pic_order_present_flag          =
 568                 pps->bottom_field_pic_order_in_frame_present_flag,
 569             .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
 570         },
 571     };
 572
 573     return 0;
 574 }
 575
 576 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
 577                                                  VAAPIEncodePicture *pic)
 578 {
 579     VAAPIEncodeContext               *ctx = avctx->priv_data;
 580     VAAPIEncodeH264Context          *priv = ctx->priv_data;
 581     VAAPIEncodeH264Options           *opt = ctx->codec_options;
 582     H264RawSPS                       *sps = &priv->sps;
 583     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 584     int i;
 585
 586     memset(&priv->current_access_unit, 0,
 587            sizeof(priv->current_access_unit));
 588
 589     if (pic->type == PICTURE_TYPE_IDR) {
 590         av_assert0(pic->display_order == pic->encode_order);
 591         priv->frame_num      = 0;
 592         priv->next_frame_num = 1;
 593         priv->cpb_delay      = 0;
 594         priv->last_idr_frame = pic->display_order;
 595         ++priv->idr_pic_count;
 596
 597         priv->slice_type       = 7;
 598         priv->primary_pic_type = 0;
 599     } else {
 600         priv->frame_num      = priv->next_frame_num;
 601
 602         if (pic->type != PICTURE_TYPE_B) {
 603             // Reference picture, so frame_num advances.
 604             priv->next_frame_num = (priv->frame_num + 1) &
 605                 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 606         }
 607         ++priv->cpb_delay;
 608
 609         if (pic->type == PICTURE_TYPE_I) {
 610             priv->slice_type       = 7;
 611             priv->primary_pic_type = 0;
 612         } else if (pic->type == PICTURE_TYPE_P) {
 613             priv->slice_type       = 5;
 614             priv->primary_pic_type = 1;
 615         } else {
 616             priv->slice_type       = 6;
 617             priv->primary_pic_type = 2;
 618         }
 619     }
 620     priv->pic_order_cnt = pic->display_order - priv->last_idr_frame;
 621     priv->dpb_delay     = pic->display_order - pic->encode_order + 1;
 622
 623     if (opt->aud) {
 624         priv->aud_needed = 1;
 625         priv->aud.nal_unit_header.nal_unit_type = H264_NAL_AUD;
 626         priv->aud.primary_pic_type = priv->primary_pic_type;
 627     } else {
 628         priv->aud_needed = 0;
 629     }
 630
 631     if (opt->sei & SEI_IDENTIFIER && pic->encode_order == 0)
 632         priv->sei_needed = 1;
 633 #if !CONFIG_VAAPI_1
 634     if (ctx->va_rc_mode == VA_RC_CBR)
 635         priv->sei_cbr_workaround_needed = 1;
 636 #endif
 637
 638     if (opt->sei & SEI_TIMING) {
 639         memset(&priv->pic_timing, 0, sizeof(priv->pic_timing));
 640
 641         priv->pic_timing.cpb_removal_delay = 2 * priv->cpb_delay;
 642         priv->pic_timing.dpb_output_delay  = 2 * priv->dpb_delay;
 643
 644         priv->sei_needed = 1;
 645     }
 646
 647     if (opt->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
 648         priv->recovery_point.recovery_frame_cnt = 0;
 649         priv->recovery_point.exact_match_flag   = 1;
 650         priv->recovery_point.broken_link_flag   = ctx->b_per_p > 0;
 651
 652         priv->sei_needed = 1;
 653     }
 654
 655     vpic->CurrPic = (VAPictureH264) {
 656         .picture_id          = pic->recon_surface,
 657         .frame_idx           = priv->frame_num,
 658         .flags               = 0,
 659         .TopFieldOrderCnt    = priv->pic_order_cnt,
 660         .BottomFieldOrderCnt = priv->pic_order_cnt,
 661     };
 662
 663     for (i = 0; i < pic->nb_refs; i++) {
 664         VAAPIEncodePicture *ref = pic->refs[i];
 665         unsigned int frame_num = (ref->encode_order - priv->last_idr_frame) &
 666             ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
 667         unsigned int pic_order_cnt = ref->display_order - priv->last_idr_frame;
 668
 669         av_assert0(ref && ref->encode_order < pic->encode_order);
 670         vpic->ReferenceFrames[i] = (VAPictureH264) {
 671             .picture_id          = ref->recon_surface,
 672             .frame_idx           = frame_num,
 673             .flags               = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
 674             .TopFieldOrderCnt    = pic_order_cnt,
 675             .BottomFieldOrderCnt = pic_order_cnt,
 676         };
 677     }
 678     for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
 679         vpic->ReferenceFrames[i] = (VAPictureH264) {
 680             .picture_id = VA_INVALID_ID,
 681             .flags      = VA_PICTURE_H264_INVALID,
 682         };
 683     }
 684
 685     vpic->coded_buf = pic->output_buffer;
 686
 687     vpic->frame_num = priv->frame_num;
 688
 689     vpic->pic_fields.bits.idr_pic_flag       = (pic->type == PICTURE_TYPE_IDR);
 690     vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
 691
 692     pic->nb_slices = 1;
 693
 694     return 0;
 695 }
 696
 697 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
 698                                                VAAPIEncodePicture *pic,
 699                                                VAAPIEncodeSlice *slice)
 700 {
 701     VAAPIEncodeContext               *ctx = avctx->priv_data;
 702     VAAPIEncodeH264Context          *priv = ctx->priv_data;
 703     H264RawSPS                       *sps = &priv->sps;
 704     H264RawPPS                       *pps = &priv->pps;
 705     H264RawSliceHeader                *sh = &priv->slice.header;
 706     VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
 707     VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
 708     int i;
 709
 710     if (pic->type == PICTURE_TYPE_IDR) {
 711         sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
 712         sh->nal_unit_header.nal_ref_idc   = 3;
 713     } else {
 714         sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
 715         sh->nal_unit_header.nal_ref_idc   = pic->type != PICTURE_TYPE_B;
 716     }
 717
 718     // Only one slice per frame.
 719     sh->first_mb_in_slice = 0;
 720     sh->slice_type        = priv->slice_type;
 721
 722     sh->pic_parameter_set_id = pps->pic_parameter_set_id;
 723
 724     sh->frame_num  = priv->frame_num;
 725     sh->idr_pic_id = priv->idr_pic_count;
 726
 727     sh->pic_order_cnt_lsb = priv->pic_order_cnt &
 728         ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
 729
 730     sh->direct_spatial_mv_pred_flag = 1;
 731
 732     if (pic->type == PICTURE_TYPE_B)
 733         sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
 734     else if (pic->type == PICTURE_TYPE_P)
 735         sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
 736     else
 737         sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
 738
 739
 740     vslice->macroblock_address = sh->first_mb_in_slice;
 741     vslice->num_macroblocks    = priv->mb_width * priv->mb_height;
 742
 743     vslice->macroblock_info = VA_INVALID_ID;
 744
 745     vslice->slice_type           = sh->slice_type % 5;
 746     vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
 747     vslice->idr_pic_id           = sh->idr_pic_id;
 748
 749     vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
 750
 751     vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
 752
 753     for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
 754         vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
 755         vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;
 756         vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
 757         vslice->RefPicList1[i].flags      = VA_PICTURE_H264_INVALID;
 758     }
 759
 760     av_assert0(pic->nb_refs <= 2);
 761     if (pic->nb_refs >= 1) {
 762         // Backward reference for P- or B-frame.
 763         av_assert0(pic->type == PICTURE_TYPE_P ||
 764                    pic->type == PICTURE_TYPE_B);
 765         vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
 766     }
 767     if (pic->nb_refs >= 2) {
 768         // Forward reference for B-frame.
 769         av_assert0(pic->type == PICTURE_TYPE_B);
 770         vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
 771     }
 772
 773     vslice->slice_qp_delta = sh->slice_qp_delta;
 774
 775     return 0;
 776 }
 777
 778 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
 779 {
 780     VAAPIEncodeContext      *ctx = avctx->priv_data;
 781     VAAPIEncodeH264Context *priv = ctx->priv_data;
 782     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 783     int err;
 784
 785     err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
 786     if (err < 0)
 787         return err;
 788
 789     priv->mb_width  = FFALIGN(avctx->width,  16) / 16;
 790     priv->mb_height = FFALIGN(avctx->height, 16) / 16;
 791
 792     if (ctx->va_rc_mode == VA_RC_CQP) {
 793         priv->fixed_qp_p = opt->qp;
 794         if (avctx->i_quant_factor > 0.0)
 795             priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
 796                                         avctx->i_quant_offset) + 0.5);
 797         else
 798             priv->fixed_qp_idr = priv->fixed_qp_p;
 799         if (avctx->b_quant_factor > 0.0)
 800             priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
 801                                       avctx->b_quant_offset) + 0.5);
 802         else
 803             priv->fixed_qp_b = priv->fixed_qp_p;
 804
 805         opt->sei &= ~SEI_TIMING;
 806
 807         av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
 808                "%d / %d / %d for IDR- / P- / B-frames.\n",
 809                priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
 810
 811     } else if (ctx->va_rc_mode == VA_RC_CBR ||
 812                ctx->va_rc_mode == VA_RC_VBR) {
 813         // These still need to be  set for pic_init_qp/slice_qp_delta.
 814         priv->fixed_qp_idr = 26;
 815         priv->fixed_qp_p   = 26;
 816         priv->fixed_qp_b   = 26;
 817
 818         av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n",
 819                ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable",
 820                avctx->bit_rate);
 821
 822     } else {
 823         av_assert0(0 && "Invalid RC mode.");
 824     }
 825
 826     if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
 827         avctx->compression_level = opt->quality;
 828
 829     if (opt->sei & SEI_IDENTIFIER) {
 830         const char *lavc  = LIBAVCODEC_IDENT;
 831         const char *vaapi = VA_VERSION_S;
 832         const char *driver;
 833         int len;
 834
 835         memcpy(priv->identifier.uuid_iso_iec_11578,
 836                vaapi_encode_h264_sei_identifier_uuid,
 837                sizeof(priv->identifier.uuid_iso_iec_11578));
 838
 839         driver = vaQueryVendorString(ctx->hwctx->display);
 840         if (!driver)
 841             driver = "unknown driver";
 842
 843         len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
 844         if (len >= 0) {
 845             priv->identifier_string = av_malloc(len + 1);
 846             if (!priv->identifier_string)
 847                 return AVERROR(ENOMEM);
 848
 849             snprintf(priv->identifier_string, len + 1,
 850                      "%s / VAAPI %s / %s", lavc, vaapi, driver);
 851
 852             priv->identifier.data = priv->identifier_string;
 853             priv->identifier.data_length = len + 1;
 854         }
 855     }
 856
 857     return 0;
 858 }
 859
 860 static const VAAPIEncodeType vaapi_encode_type_h264 = {
 861     .priv_data_size        = sizeof(VAAPIEncodeH264Context),
 862
 863     .configure             = &vaapi_encode_h264_configure,
 864
 865     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),
 866     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,
 867
 868     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),
 869     .init_picture_params   = &vaapi_encode_h264_init_picture_params,
 870
 871     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),
 872     .init_slice_params     = &vaapi_encode_h264_init_slice_params,
 873
 874     .sequence_header_type  = VAEncPackedHeaderSequence,
 875     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
 876
 877     .slice_header_type     = VAEncPackedHeaderH264_Slice,
 878     .write_slice_header    = &vaapi_encode_h264_write_slice_header,
 879
 880     .write_extra_header    = &vaapi_encode_h264_write_extra_header,
 881 };
 882
 883 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
 884 {
 885     VAAPIEncodeContext     *ctx = avctx->priv_data;
 886     VAAPIEncodeH264Options *opt =
 887         (VAAPIEncodeH264Options*)ctx->codec_options_data;
 888
 889     ctx->codec = &vaapi_encode_type_h264;
 890
 891     if (avctx->profile == FF_PROFILE_UNKNOWN)
 892         avctx->profile = opt->profile;
 893     if (avctx->level == FF_LEVEL_UNKNOWN)
 894         avctx->level = opt->level;
 895
 896     switch (avctx->profile) {
 897     case FF_PROFILE_H264_BASELINE:
 898         av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
 899                "supported, using constrained baseline profile instead.\n");
 900         avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
 901     case FF_PROFILE_H264_CONSTRAINED_BASELINE:
 902         ctx->va_profile = VAProfileH264ConstrainedBaseline;
 903         if (avctx->max_b_frames != 0) {
 904             avctx->max_b_frames = 0;
 905             av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline profile "
 906                    "doesn't support encoding with B frames, disabling them.\n");
 907         }
 908         break;
 909     case FF_PROFILE_H264_MAIN:
 910         ctx->va_profile = VAProfileH264Main;
 911         break;
 912     case FF_PROFILE_H264_EXTENDED:
 913         av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
 914                "is not supported.\n");
 915         return AVERROR_PATCHWELCOME;
 916     case FF_PROFILE_UNKNOWN:
 917     case FF_PROFILE_H264_HIGH:
 918         ctx->va_profile = VAProfileH264High;
 919         break;
 920     case FF_PROFILE_H264_HIGH_10:
 921     case FF_PROFILE_H264_HIGH_10_INTRA:
 922         av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
 923                "are not supported.\n");
 924         return AVERROR_PATCHWELCOME;
 925     case FF_PROFILE_H264_HIGH_422:
 926     case FF_PROFILE_H264_HIGH_422_INTRA:
 927     case FF_PROFILE_H264_HIGH_444:
 928     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
 929     case FF_PROFILE_H264_HIGH_444_INTRA:
 930     case FF_PROFILE_H264_CAVLC_444:
 931         av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
 932                "are not supported.\n");
 933         return AVERROR_PATCHWELCOME;
 934     default:
 935         av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
 936                avctx->profile);
 937         return AVERROR(EINVAL);
 938     }
 939     if (opt->low_power) {
 940 #if VA_CHECK_VERSION(0, 39, 2)
 941         ctx->va_entrypoint = VAEntrypointEncSliceLP;
 942 #else
 943         av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
 944                "supported with this VAAPI version.\n");
 945         return AVERROR(EINVAL);
 946 #endif
 947     } else {
 948         ctx->va_entrypoint = VAEntrypointEncSlice;
 949     }
 950
 951     // Only 8-bit encode is supported.
 952     ctx->va_rt_format = VA_RT_FORMAT_YUV420;
 953
 954     if (avctx->bit_rate > 0) {
 955         if (avctx->rc_max_rate == avctx->bit_rate)
 956             ctx->va_rc_mode = VA_RC_CBR;
 957         else
 958             ctx->va_rc_mode = VA_RC_VBR;
 959     } else
 960         ctx->va_rc_mode = VA_RC_CQP;
 961
 962     ctx->va_packed_headers =
 963         VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
 964         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
 965         VA_ENC_PACKED_HEADER_MISC;      // SEI.
 966
 967     ctx->surface_width  = FFALIGN(avctx->width,  16);
 968     ctx->surface_height = FFALIGN(avctx->height, 16);
 969
 970     return ff_vaapi_encode_init(avctx);
 971 }
 972
 973 static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
 974 {
 975     VAAPIEncodeContext *ctx = avctx->priv_data;
 976     VAAPIEncodeH264Context *priv = ctx->priv_data;
 977
 978     if (priv) {
 979         ff_cbs_close(&priv->cbc);
 980         av_freep(&priv->identifier_string);
 981     }
 982
 983     return ff_vaapi_encode_close(avctx);
 984 }
 985
 986 #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
 987                    offsetof(VAAPIEncodeH264Options, x))
 988 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
 989 static const AVOption vaapi_encode_h264_options[] = {
 990     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
 991       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
 992     { "quality", "Set encode quality (trades off against speed, higher is faster)",
 993       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
 994     { "low_power", "Use low-power encoding mode (experimental: only supported "
 995       "on some platforms, does not support all features)",
 996       OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
 997     { "coder", "Entropy coder type",
 998       OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
 999         { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1000         { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1001         { "vlc",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1002         { "ac",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1003
1004     { "aud", "Include AUD",
1005       OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
1006
1007     { "sei", "Set SEI to include",
1008       OFFSET(sei), AV_OPT_TYPE_FLAGS,
1009       { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1010       0, INT_MAX, FLAGS, "sei" },
1011     { "identifier", "Include encoder version identifier",
1012       0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1013       INT_MIN, INT_MAX, FLAGS, "sei" },
1014     { "timing", "Include timing parameters (buffering_period and pic_timing)",
1015       0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1016       INT_MIN, INT_MAX, FLAGS, "sei" },
1017     { "recovery_point", "Include recovery points where appropriate",
1018       0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1019       INT_MIN, INT_MAX, FLAGS, "sei" },
1020
1021     { "profile", "Set profile (profile_idc and constraint_set*_flag)",
1022       OFFSET(profile), AV_OPT_TYPE_INT,
1023       { .i64 = FF_PROFILE_H264_HIGH }, 0x0000, 0xffff, FLAGS, "profile" },
1024
1025 #define PROFILE(name, value)  name, NULL, 0, AV_OPT_TYPE_CONST, \
1026       { .i64 = value }, 0, 0, FLAGS, "profile"
1027     { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
1028     { PROFILE("main",                 FF_PROFILE_H264_MAIN) },
1029     { PROFILE("high",                 FF_PROFILE_H264_HIGH) },
1030 #undef PROFILE
1031
1032     { "level", "Set level (level_idc)",
1033       OFFSET(level), AV_OPT_TYPE_INT,
1034       { .i64 = 51 }, 0x00, 0xff, FLAGS, "level" },
1035
1036 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1037       { .i64 = value }, 0, 0, FLAGS, "level"
1038     { LEVEL("1",   10) },
1039     { LEVEL("1.1", 11) },
1040     { LEVEL("1.2", 12) },
1041     { LEVEL("1.3", 13) },
1042     { LEVEL("2",   20) },
1043     { LEVEL("2.1", 21) },
1044     { LEVEL("2.2", 22) },
1045     { LEVEL("3",   30) },
1046     { LEVEL("3.1", 31) },
1047     { LEVEL("3.2", 32) },
1048     { LEVEL("4",   40) },
1049     { LEVEL("4.1", 41) },
1050     { LEVEL("4.2", 42) },
1051     { LEVEL("5",   50) },
1052     { LEVEL("5.1", 51) },
1053     { LEVEL("5.2", 52) },
1054     { LEVEL("6",   60) },
1055     { LEVEL("6.1", 61) },
1056     { LEVEL("6.2", 62) },
1057 #undef LEVEL
1058
1059     { NULL },
1060 };
1061
1062 static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1063     { "b",              "0"   },
1064     { "bf",             "2"   },
1065     { "g",              "120" },
1066     { "i_qfactor",      "1"   },
1067     { "i_qoffset",      "0"   },
1068     { "b_qfactor",      "6/5" },
1069     { "b_qoffset",      "0"   },
1070     { "qmin",           "0"   },
1071     { NULL },
1072 };
1073
1074 static const AVClass vaapi_encode_h264_class = {
1075     .class_name = "h264_vaapi",
1076     .item_name  = av_default_item_name,
1077     .option     = vaapi_encode_h264_options,
1078     .version    = LIBAVUTIL_VERSION_INT,
1079 };
1080
1081 AVCodec ff_h264_vaapi_encoder = {
1082     .name           = "h264_vaapi",
1083     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1084     .type           = AVMEDIA_TYPE_VIDEO,
1085     .id             = AV_CODEC_ID_H264,
1086     .priv_data_size = (sizeof(VAAPIEncodeContext) +
1087                        sizeof(VAAPIEncodeH264Options)),
1088     .init           = &vaapi_encode_h264_init,
1089     .encode2        = &ff_vaapi_encode2,
1090     .close          = &vaapi_encode_h264_close,
1091     .priv_class     = &vaapi_encode_h264_class,
1092     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
1093     .defaults       = vaapi_encode_h264_defaults,
1094     .pix_fmts = (const enum AVPixelFormat[]) {
1095         AV_PIX_FMT_VAAPI,
1096         AV_PIX_FMT_NONE,
1097     },
1098     .wrapper_name   = "vaapi",
1099 };