56ad217b4a53f5525a331ec599a7f79d031920c9
[ffmpeg.git] / 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 };