FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vaapi_encode_h264.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 0 653 0.0%
Branches: 0 339 0.0%

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1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <string.h>
20
21 #include <va/va.h>
22 #include <va/va_enc_h264.h>
23
24 #include "libavutil/avassert.h"
25 #include "libavutil/common.h"
26 #include "libavutil/internal.h"
27 #include "libavutil/opt.h"
28
29 #include "avcodec.h"
30 #include "cbs.h"
31 #include "cbs_h264.h"
32 #include "h264.h"
33 #include "h264_levels.h"
34 #include "h264_sei.h"
35 #include "internal.h"
36 #include "vaapi_encode.h"
37
38 enum {
39 SEI_TIMING = 0x01,
40 SEI_IDENTIFIER = 0x02,
41 SEI_RECOVERY_POINT = 0x04,
42 };
43
44 // Random (version 4) ISO 11578 UUID.
45 static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {
46 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
47 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
48 };
49
50 typedef struct VAAPIEncodeH264Picture {
51 int frame_num;
52 int pic_order_cnt;
53
54 int64_t last_idr_frame;
55 uint16_t idr_pic_id;
56
57 int primary_pic_type;
58 int slice_type;
59
60 int cpb_delay;
61 int dpb_delay;
62 } VAAPIEncodeH264Picture;
63
64 typedef struct VAAPIEncodeH264Context {
65 VAAPIEncodeContext common;
66
67 // User options.
68 int qp;
69 int quality;
70 int coder;
71 int aud;
72 int sei;
73 int profile;
74 int level;
75
76 // Derived settings.
77 int mb_width;
78 int mb_height;
79
80 int fixed_qp_idr;
81 int fixed_qp_p;
82 int fixed_qp_b;
83
84 int dpb_frames;
85
86 // Writer structures.
87 CodedBitstreamContext *cbc;
88 CodedBitstreamFragment current_access_unit;
89
90 H264RawAUD raw_aud;
91 H264RawSPS raw_sps;
92 H264RawPPS raw_pps;
93 H264RawSlice raw_slice;
94
95 H264RawSEIBufferingPeriod sei_buffering_period;
96 H264RawSEIPicTiming sei_pic_timing;
97 H264RawSEIRecoveryPoint sei_recovery_point;
98 SEIRawUserDataUnregistered sei_identifier;
99 char *sei_identifier_string;
100
101 int aud_needed;
102 int sei_needed;
103 int sei_cbr_workaround_needed;
104 } VAAPIEncodeH264Context;
105
106
107 static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
108 char *data, size_t *data_len,
109 CodedBitstreamFragment *au)
110 {
111 VAAPIEncodeH264Context *priv = avctx->priv_data;
112 int err;
113
114 err = ff_cbs_write_fragment_data(priv->cbc, au);
115 if (err < 0) {
116 av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
117 return err;
118 }
119
120 if (*data_len < 8 * au->data_size - au->data_bit_padding) {
121 av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
122 "%zu < %zu.\n", *data_len,
123 8 * au->data_size - au->data_bit_padding);
124 return AVERROR(ENOSPC);
125 }
126
127 memcpy(data, au->data, au->data_size);
128 *data_len = 8 * au->data_size - au->data_bit_padding;
129
130 return 0;
131 }
132
133 static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,
134 CodedBitstreamFragment *au,
135 void *nal_unit)
136 {
137 H264RawNALUnitHeader *header = nal_unit;
138 int err;
139
140 err = ff_cbs_insert_unit_content(au, -1,
141 header->nal_unit_type, nal_unit, NULL);
142 if (err < 0) {
143 av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
144 "type = %d.\n", header->nal_unit_type);
145 return err;
146 }
147
148 return 0;
149 }
150
151 static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
152 char *data, size_t *data_len)
153 {
154 VAAPIEncodeH264Context *priv = avctx->priv_data;
155 CodedBitstreamFragment *au = &priv->current_access_unit;
156 int err;
157
158 if (priv->aud_needed) {
159 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
160 if (err < 0)
161 goto fail;
162 priv->aud_needed = 0;
163 }
164
165 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_sps);
166 if (err < 0)
167 goto fail;
168
169 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_pps);
170 if (err < 0)
171 goto fail;
172
173 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
174 fail:
175 ff_cbs_fragment_reset(au);
176 return err;
177 }
178
179 static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
180 VAAPIEncodePicture *pic,
181 VAAPIEncodeSlice *slice,
182 char *data, size_t *data_len)
183 {
184 VAAPIEncodeH264Context *priv = avctx->priv_data;
185 CodedBitstreamFragment *au = &priv->current_access_unit;
186 int err;
187
188 if (priv->aud_needed) {
189 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
190 if (err < 0)
191 goto fail;
192 priv->aud_needed = 0;
193 }
194
195 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice);
196 if (err < 0)
197 goto fail;
198
199 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
200 fail:
201 ff_cbs_fragment_reset(au);
202 return err;
203 }
204
205 static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
206 VAAPIEncodePicture *pic,
207 int index, int *type,
208 char *data, size_t *data_len)
209 {
210 VAAPIEncodeH264Context *priv = avctx->priv_data;
211 CodedBitstreamFragment *au = &priv->current_access_unit;
212 int err;
213
214 if (priv->sei_needed) {
215 if (priv->aud_needed) {
216 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
217 if (err < 0)
218 goto fail;
219 priv->aud_needed = 0;
220 }
221
222 if (priv->sei_needed & SEI_IDENTIFIER) {
223 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
224 SEI_TYPE_USER_DATA_UNREGISTERED,
225 &priv->sei_identifier, NULL);
226 if (err < 0)
227 goto fail;
228 }
229 if (priv->sei_needed & SEI_TIMING) {
230 if (pic->type == PICTURE_TYPE_IDR) {
231 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
232 SEI_TYPE_BUFFERING_PERIOD,
233 &priv->sei_buffering_period, NULL);
234 if (err < 0)
235 goto fail;
236 }
237 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
238 SEI_TYPE_PIC_TIMING,
239 &priv->sei_pic_timing, NULL);
240 if (err < 0)
241 goto fail;
242 }
243 if (priv->sei_needed & SEI_RECOVERY_POINT) {
244 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
245 SEI_TYPE_RECOVERY_POINT,
246 &priv->sei_recovery_point, NULL);
247 if (err < 0)
248 goto fail;
249 }
250
251 priv->sei_needed = 0;
252
253 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
254 if (err < 0)
255 goto fail;
256
257 ff_cbs_fragment_reset(au);
258
259 *type = VAEncPackedHeaderRawData;
260 return 0;
261
262 #if !CONFIG_VAAPI_1
263 } else if (priv->sei_cbr_workaround_needed) {
264 // Insert a zero-length header using the old SEI type. This is
265 // required to avoid triggering broken behaviour on Intel platforms
266 // in CBR mode where an invalid SEI message is generated by the
267 // driver and inserted into the stream.
268 *data_len = 0;
269 *type = VAEncPackedHeaderH264_SEI;
270 priv->sei_cbr_workaround_needed = 0;
271 return 0;
272 #endif
273
274 } else {
275 return AVERROR_EOF;
276 }
277
278 fail:
279 ff_cbs_fragment_reset(au);
280 return err;
281 }
282
283 static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
284 {
285 VAAPIEncodeContext *ctx = avctx->priv_data;
286 VAAPIEncodeH264Context *priv = avctx->priv_data;
287 H264RawSPS *sps = &priv->raw_sps;
288 H264RawPPS *pps = &priv->raw_pps;
289 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
290 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
291
292 memset(sps, 0, sizeof(*sps));
293 memset(pps, 0, sizeof(*pps));
294
295 sps->nal_unit_header.nal_ref_idc = 3;
296 sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
297
298 sps->profile_idc = avctx->profile & 0xff;
299
300 if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE ||
301 avctx->profile == FF_PROFILE_H264_MAIN)
302 sps->constraint_set1_flag = 1;
303
304 if (avctx->profile == FF_PROFILE_H264_HIGH)
305 sps->constraint_set3_flag = ctx->gop_size == 1;
306
307 if (avctx->profile == FF_PROFILE_H264_MAIN ||
308 avctx->profile == FF_PROFILE_H264_HIGH) {
309 sps->constraint_set4_flag = 1;
310 sps->constraint_set5_flag = ctx->b_per_p == 0;
311 }
312
313 if (ctx->gop_size == 1)
314 priv->dpb_frames = 0;
315 else
316 priv->dpb_frames = 1 + ctx->max_b_depth;
317
318 if (avctx->level != FF_LEVEL_UNKNOWN) {
319 sps->level_idc = avctx->level;
320 } else {
321 const H264LevelDescriptor *level;
322 int framerate;
323
324 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
325 framerate = avctx->framerate.num / avctx->framerate.den;
326 else
327 framerate = 0;
328
329 level = ff_h264_guess_level(sps->profile_idc,
330 avctx->bit_rate,
331 framerate,
332 priv->mb_width * 16,
333 priv->mb_height * 16,
334 priv->dpb_frames);
335 if (level) {
336 av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);
337 if (level->constraint_set3_flag)
338 sps->constraint_set3_flag = 1;
339 sps->level_idc = level->level_idc;
340 } else {
341 av_log(avctx, AV_LOG_WARNING, "Stream will not conform "
342 "to any level: using level 6.2.\n");
343 sps->level_idc = 62;
344 }
345 }
346
347 sps->seq_parameter_set_id = 0;
348 sps->chroma_format_idc = 1;
349
350 sps->log2_max_frame_num_minus4 = 4;
351 sps->pic_order_cnt_type = 0;
352 sps->log2_max_pic_order_cnt_lsb_minus4 = 4;
353
354 sps->max_num_ref_frames = priv->dpb_frames;
355
356 sps->pic_width_in_mbs_minus1 = priv->mb_width - 1;
357 sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
358
359 sps->frame_mbs_only_flag = 1;
360 sps->direct_8x8_inference_flag = 1;
361
362 if (avctx->width != 16 * priv->mb_width ||
363 avctx->height != 16 * priv->mb_height) {
364 sps->frame_cropping_flag = 1;
365
366 sps->frame_crop_left_offset = 0;
367 sps->frame_crop_right_offset =
368 (16 * priv->mb_width - avctx->width) / 2;
369 sps->frame_crop_top_offset = 0;
370 sps->frame_crop_bottom_offset =
371 (16 * priv->mb_height - avctx->height) / 2;
372 } else {
373 sps->frame_cropping_flag = 0;
374 }
375
376 sps->vui_parameters_present_flag = 1;
377
378 if (avctx->sample_aspect_ratio.num != 0 &&
379 avctx->sample_aspect_ratio.den != 0) {
380 static const AVRational sar_idc[] = {
381 { 0, 0 },
382 { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
383 { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
384 { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
385 { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
386 };
387 int num, den, i;
388 av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
389 avctx->sample_aspect_ratio.den, 65535);
390 for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
391 if (num == sar_idc[i].num &&
392 den == sar_idc[i].den) {
393 sps->vui.aspect_ratio_idc = i;
394 break;
395 }
396 }
397 if (i >= FF_ARRAY_ELEMS(sar_idc)) {
398 sps->vui.aspect_ratio_idc = 255;
399 sps->vui.sar_width = num;
400 sps->vui.sar_height = den;
401 }
402 sps->vui.aspect_ratio_info_present_flag = 1;
403 }
404
405 // Unspecified video format, from table E-2.
406 sps->vui.video_format = 5;
407 sps->vui.video_full_range_flag =
408 avctx->color_range == AVCOL_RANGE_JPEG;
409 sps->vui.colour_primaries = avctx->color_primaries;
410 sps->vui.transfer_characteristics = avctx->color_trc;
411 sps->vui.matrix_coefficients = avctx->colorspace;
412 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
413 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
414 avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
415 sps->vui.colour_description_present_flag = 1;
416 if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED ||
417 sps->vui.colour_description_present_flag)
418 sps->vui.video_signal_type_present_flag = 1;
419
420 if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
421 sps->vui.chroma_loc_info_present_flag = 1;
422 sps->vui.chroma_sample_loc_type_top_field =
423 sps->vui.chroma_sample_loc_type_bottom_field =
424 avctx->chroma_sample_location - 1;
425 }
426
427 sps->vui.timing_info_present_flag = 1;
428 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
429 sps->vui.num_units_in_tick = avctx->framerate.den;
430 sps->vui.time_scale = 2 * avctx->framerate.num;
431 sps->vui.fixed_frame_rate_flag = 1;
432 } else {
433 sps->vui.num_units_in_tick = avctx->time_base.num;
434 sps->vui.time_scale = 2 * avctx->time_base.den;
435 sps->vui.fixed_frame_rate_flag = 0;
436 }
437
438 if (priv->sei & SEI_TIMING) {
439 H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
440 H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period;
441
442 sps->vui.nal_hrd_parameters_present_flag = 1;
443
444 hrd->cpb_cnt_minus1 = 0;
445
446 // Try to scale these to a sensible range so that the
447 // golomb encode of the value is not overlong.
448 hrd->bit_rate_scale =
449 av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4);
450 hrd->bit_rate_value_minus1[0] =
451 (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1;
452
453 hrd->cpb_size_scale =
454 av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4);
455 hrd->cpb_size_value_minus1[0] =
456 (ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1;
457
458 // CBR mode as defined for the HRD cannot be achieved without filler
459 // data, so this flag cannot be set even with VAAPI CBR modes.
460 hrd->cbr_flag[0] = 0;
461
462 hrd->initial_cpb_removal_delay_length_minus1 = 23;
463 hrd->cpb_removal_delay_length_minus1 = 23;
464 hrd->dpb_output_delay_length_minus1 = 7;
465 hrd->time_offset_length = 0;
466
467 bp->seq_parameter_set_id = sps->seq_parameter_set_id;
468
469 // This calculation can easily overflow 32 bits.
470 bp->nal.initial_cpb_removal_delay[0] = 90000 *
471 (uint64_t)ctx->hrd_params.initial_buffer_fullness /
472 ctx->hrd_params.buffer_size;
473 bp->nal.initial_cpb_removal_delay_offset[0] = 0;
474 } else {
475 sps->vui.nal_hrd_parameters_present_flag = 0;
476 sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
477 }
478
479 sps->vui.bitstream_restriction_flag = 1;
480 sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
481 sps->vui.log2_max_mv_length_horizontal = 15;
482 sps->vui.log2_max_mv_length_vertical = 15;
483 sps->vui.max_num_reorder_frames = ctx->max_b_depth;
484 sps->vui.max_dec_frame_buffering = ctx->max_b_depth + 1;
485
486 pps->nal_unit_header.nal_ref_idc = 3;
487 pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
488
489 pps->pic_parameter_set_id = 0;
490 pps->seq_parameter_set_id = 0;
491
492 pps->entropy_coding_mode_flag =
493 !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
494 sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
495 sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
496 if (!priv->coder && pps->entropy_coding_mode_flag)
497 pps->entropy_coding_mode_flag = 0;
498
499 pps->num_ref_idx_l0_default_active_minus1 = 0;
500 pps->num_ref_idx_l1_default_active_minus1 = 0;
501
502 pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
503
504 if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
505 sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
506 sps->profile_idc == FF_PROFILE_H264_MAIN) {
507 pps->more_rbsp_data = 0;
508 } else {
509 pps->more_rbsp_data = 1;
510
511 pps->transform_8x8_mode_flag = 1;
512 }
513
514 *vseq = (VAEncSequenceParameterBufferH264) {
515 .seq_parameter_set_id = sps->seq_parameter_set_id,
516 .level_idc = sps->level_idc,
517 .intra_period = ctx->gop_size,
518 .intra_idr_period = ctx->gop_size,
519 .ip_period = ctx->b_per_p + 1,
520
521 .bits_per_second = ctx->va_bit_rate,
522 .max_num_ref_frames = sps->max_num_ref_frames,
523 .picture_width_in_mbs = sps->pic_width_in_mbs_minus1 + 1,
524 .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
525
526 .seq_fields.bits = {
527 .chroma_format_idc = sps->chroma_format_idc,
528 .frame_mbs_only_flag = sps->frame_mbs_only_flag,
529 .mb_adaptive_frame_field_flag = sps->mb_adaptive_frame_field_flag,
530 .seq_scaling_matrix_present_flag = sps->seq_scaling_matrix_present_flag,
531 .direct_8x8_inference_flag = sps->direct_8x8_inference_flag,
532 .log2_max_frame_num_minus4 = sps->log2_max_frame_num_minus4,
533 .pic_order_cnt_type = sps->pic_order_cnt_type,
534 .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
535 .delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag,
536 },
537
538 .bit_depth_luma_minus8 = sps->bit_depth_luma_minus8,
539 .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
540
541 .frame_cropping_flag = sps->frame_cropping_flag,
542 .frame_crop_left_offset = sps->frame_crop_left_offset,
543 .frame_crop_right_offset = sps->frame_crop_right_offset,
544 .frame_crop_top_offset = sps->frame_crop_top_offset,
545 .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
546
547 .vui_parameters_present_flag = sps->vui_parameters_present_flag,
548
549 .vui_fields.bits = {
550 .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
551 .timing_info_present_flag = sps->vui.timing_info_present_flag,
552 .bitstream_restriction_flag = sps->vui.bitstream_restriction_flag,
553 .log2_max_mv_length_horizontal = sps->vui.log2_max_mv_length_horizontal,
554 .log2_max_mv_length_vertical = sps->vui.log2_max_mv_length_vertical,
555 },
556
557 .aspect_ratio_idc = sps->vui.aspect_ratio_idc,
558 .sar_width = sps->vui.sar_width,
559 .sar_height = sps->vui.sar_height,
560 .num_units_in_tick = sps->vui.num_units_in_tick,
561 .time_scale = sps->vui.time_scale,
562 };
563
564 *vpic = (VAEncPictureParameterBufferH264) {
565 .CurrPic = {
566 .picture_id = VA_INVALID_ID,
567 .flags = VA_PICTURE_H264_INVALID,
568 },
569
570 .coded_buf = VA_INVALID_ID,
571
572 .pic_parameter_set_id = pps->pic_parameter_set_id,
573 .seq_parameter_set_id = pps->seq_parameter_set_id,
574
575 .pic_init_qp = pps->pic_init_qp_minus26 + 26,
576 .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
577 .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
578
579 .chroma_qp_index_offset = pps->chroma_qp_index_offset,
580 .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
581
582 .pic_fields.bits = {
583 .entropy_coding_mode_flag = pps->entropy_coding_mode_flag,
584 .weighted_pred_flag = pps->weighted_pred_flag,
585 .weighted_bipred_idc = pps->weighted_bipred_idc,
586 .constrained_intra_pred_flag = pps->constrained_intra_pred_flag,
587 .transform_8x8_mode_flag = pps->transform_8x8_mode_flag,
588 .deblocking_filter_control_present_flag =
589 pps->deblocking_filter_control_present_flag,
590 .redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present_flag,
591 .pic_order_present_flag =
592 pps->bottom_field_pic_order_in_frame_present_flag,
593 .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
594 },
595 };
596
597 return 0;
598 }
599
600 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
601 VAAPIEncodePicture *pic)
602 {
603 VAAPIEncodeContext *ctx = avctx->priv_data;
604 VAAPIEncodeH264Context *priv = avctx->priv_data;
605 VAAPIEncodeH264Picture *hpic = pic->priv_data;
606 VAAPIEncodePicture *prev = pic->prev;
607 VAAPIEncodeH264Picture *hprev = prev ? prev->priv_data : NULL;
608 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
609 int i;
610
611 if (pic->type == PICTURE_TYPE_IDR) {
612 av_assert0(pic->display_order == pic->encode_order);
613
614 hpic->frame_num = 0;
615 hpic->last_idr_frame = pic->display_order;
616 hpic->idr_pic_id = hprev ? hprev->idr_pic_id + 1 : 0;
617
618 hpic->primary_pic_type = 0;
619 hpic->slice_type = 7;
620 } else {
621 av_assert0(prev);
622
623 hpic->frame_num = hprev->frame_num + prev->is_reference;
624
625 hpic->last_idr_frame = hprev->last_idr_frame;
626 hpic->idr_pic_id = hprev->idr_pic_id;
627
628 if (pic->type == PICTURE_TYPE_I) {
629 hpic->slice_type = 7;
630 hpic->primary_pic_type = 0;
631 } else if (pic->type == PICTURE_TYPE_P) {
632 hpic->slice_type = 5;
633 hpic->primary_pic_type = 1;
634 } else {
635 hpic->slice_type = 6;
636 hpic->primary_pic_type = 2;
637 }
638 }
639 hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
640 hpic->dpb_delay = pic->display_order - pic->encode_order + ctx->max_b_depth;
641 hpic->cpb_delay = pic->encode_order - hpic->last_idr_frame;
642
643 if (priv->aud) {
644 priv->aud_needed = 1;
645 priv->raw_aud = (H264RawAUD) {
646 .nal_unit_header = {
647 .nal_unit_type = H264_NAL_AUD,
648 },
649 .primary_pic_type = hpic->primary_pic_type,
650 };
651 } else {
652 priv->aud_needed = 0;
653 }
654
655 priv->sei_needed = 0;
656
657 if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)
658 priv->sei_needed |= SEI_IDENTIFIER;
659 #if !CONFIG_VAAPI_1
660 if (ctx->va_rc_mode == VA_RC_CBR)
661 priv->sei_cbr_workaround_needed = 1;
662 #endif
663
664 if (priv->sei & SEI_TIMING) {
665 priv->sei_pic_timing = (H264RawSEIPicTiming) {
666 .cpb_removal_delay = 2 * hpic->cpb_delay,
667 .dpb_output_delay = 2 * hpic->dpb_delay,
668 };
669
670 priv->sei_needed |= SEI_TIMING;
671 }
672
673 if (priv->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
674 priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {
675 .recovery_frame_cnt = 0,
676 .exact_match_flag = 1,
677 .broken_link_flag = ctx->b_per_p > 0,
678 };
679
680 priv->sei_needed |= SEI_RECOVERY_POINT;
681 }
682
683 vpic->CurrPic = (VAPictureH264) {
684 .picture_id = pic->recon_surface,
685 .frame_idx = hpic->frame_num,
686 .flags = 0,
687 .TopFieldOrderCnt = hpic->pic_order_cnt,
688 .BottomFieldOrderCnt = hpic->pic_order_cnt,
689 };
690
691 for (i = 0; i < pic->nb_refs; i++) {
692 VAAPIEncodePicture *ref = pic->refs[i];
693 VAAPIEncodeH264Picture *href;
694
695 av_assert0(ref && ref->encode_order < pic->encode_order);
696 href = ref->priv_data;
697
698 vpic->ReferenceFrames[i] = (VAPictureH264) {
699 .picture_id = ref->recon_surface,
700 .frame_idx = href->frame_num,
701 .flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
702 .TopFieldOrderCnt = href->pic_order_cnt,
703 .BottomFieldOrderCnt = href->pic_order_cnt,
704 };
705 }
706 for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
707 vpic->ReferenceFrames[i] = (VAPictureH264) {
708 .picture_id = VA_INVALID_ID,
709 .flags = VA_PICTURE_H264_INVALID,
710 };
711 }
712
713 vpic->coded_buf = pic->output_buffer;
714
715 vpic->frame_num = hpic->frame_num;
716
717 vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
718 vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
719
720 return 0;
721 }
722
723 static void vaapi_encode_h264_default_ref_pic_list(AVCodecContext *avctx,
724 VAAPIEncodePicture *pic,
725 VAAPIEncodePicture **rpl0,
726 VAAPIEncodePicture **rpl1,
727 int *rpl_size)
728 {
729 VAAPIEncodePicture *prev;
730 VAAPIEncodeH264Picture *hp, *hn, *hc;
731 int i, j, n = 0;
732
733 prev = pic->prev;
734 av_assert0(prev);
735 hp = pic->priv_data;
736
737 for (i = 0; i < pic->prev->nb_dpb_pics; i++) {
738 hn = prev->dpb[i]->priv_data;
739 av_assert0(hn->frame_num < hp->frame_num);
740
741 if (pic->type == PICTURE_TYPE_P) {
742 for (j = n; j > 0; j--) {
743 hc = rpl0[j - 1]->priv_data;
744 av_assert0(hc->frame_num != hn->frame_num);
745 if (hc->frame_num > hn->frame_num)
746 break;
747 rpl0[j] = rpl0[j - 1];
748 }
749 rpl0[j] = prev->dpb[i];
750
751 } else if (pic->type == PICTURE_TYPE_B) {
752 for (j = n; j > 0; j--) {
753 hc = rpl0[j - 1]->priv_data;
754 av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
755 if (hc->pic_order_cnt < hp->pic_order_cnt) {
756 if (hn->pic_order_cnt > hp->pic_order_cnt ||
757 hn->pic_order_cnt < hc->pic_order_cnt)
758 break;
759 } else {
760 if (hn->pic_order_cnt > hc->pic_order_cnt)
761 break;
762 }
763 rpl0[j] = rpl0[j - 1];
764 }
765 rpl0[j] = prev->dpb[i];
766
767 for (j = n; j > 0; j--) {
768 hc = rpl1[j - 1]->priv_data;
769 av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
770 if (hc->pic_order_cnt > hp->pic_order_cnt) {
771 if (hn->pic_order_cnt < hp->pic_order_cnt ||
772 hn->pic_order_cnt > hc->pic_order_cnt)
773 break;
774 } else {
775 if (hn->pic_order_cnt < hc->pic_order_cnt)
776 break;
777 }
778 rpl1[j] = rpl1[j - 1];
779 }
780 rpl1[j] = prev->dpb[i];
781 }
782
783 ++n;
784 }
785
786 if (pic->type == PICTURE_TYPE_B) {
787 for (i = 0; i < n; i++) {
788 if (rpl0[i] != rpl1[i])
789 break;
790 }
791 if (i == n)
792 FFSWAP(VAAPIEncodePicture*, rpl1[0], rpl1[1]);
793 }
794
795 if (pic->type == PICTURE_TYPE_P ||
796 pic->type == PICTURE_TYPE_B) {
797 av_log(avctx, AV_LOG_DEBUG, "Default RefPicList0 for fn=%d/poc=%d:",
798 hp->frame_num, hp->pic_order_cnt);
799 for (i = 0; i < n; i++) {
800 hn = rpl0[i]->priv_data;
801 av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
802 hn->frame_num, hn->pic_order_cnt);
803 }
804 av_log(avctx, AV_LOG_DEBUG, "\n");
805 }
806 if (pic->type == PICTURE_TYPE_B) {
807 av_log(avctx, AV_LOG_DEBUG, "Default RefPicList1 for fn=%d/poc=%d:",
808 hp->frame_num, hp->pic_order_cnt);
809 for (i = 0; i < n; i++) {
810 hn = rpl1[i]->priv_data;
811 av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
812 hn->frame_num, hn->pic_order_cnt);
813 }
814 av_log(avctx, AV_LOG_DEBUG, "\n");
815 }
816
817 *rpl_size = n;
818 }
819
820 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
821 VAAPIEncodePicture *pic,
822 VAAPIEncodeSlice *slice)
823 {
824 VAAPIEncodeH264Context *priv = avctx->priv_data;
825 VAAPIEncodeH264Picture *hpic = pic->priv_data;
826 VAAPIEncodePicture *prev = pic->prev;
827 H264RawSPS *sps = &priv->raw_sps;
828 H264RawPPS *pps = &priv->raw_pps;
829 H264RawSliceHeader *sh = &priv->raw_slice.header;
830 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
831 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
832 int i, j;
833
834 if (pic->type == PICTURE_TYPE_IDR) {
835 sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
836 sh->nal_unit_header.nal_ref_idc = 3;
837 } else {
838 sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
839 sh->nal_unit_header.nal_ref_idc = pic->is_reference;
840 }
841
842 sh->first_mb_in_slice = slice->block_start;
843 sh->slice_type = hpic->slice_type;
844
845 sh->pic_parameter_set_id = pps->pic_parameter_set_id;
846
847 sh->frame_num = hpic->frame_num &
848 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
849 sh->idr_pic_id = hpic->idr_pic_id;
850 sh->pic_order_cnt_lsb = hpic->pic_order_cnt &
851 ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
852
853 sh->direct_spatial_mv_pred_flag = 1;
854
855 if (pic->type == PICTURE_TYPE_B)
856 sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
857 else if (pic->type == PICTURE_TYPE_P)
858 sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
859 else
860 sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
861
862 if (pic->is_reference && pic->type != PICTURE_TYPE_IDR) {
863 VAAPIEncodePicture *discard_list[MAX_DPB_SIZE];
864 int discard = 0, keep = 0;
865
866 // Discard everything which is in the DPB of the previous frame but
867 // not in the DPB of this one.
868 for (i = 0; i < prev->nb_dpb_pics; i++) {
869 for (j = 0; j < pic->nb_dpb_pics; j++) {
870 if (prev->dpb[i] == pic->dpb[j])
871 break;
872 }
873 if (j == pic->nb_dpb_pics) {
874 discard_list[discard] = prev->dpb[i];
875 ++discard;
876 } else {
877 ++keep;
878 }
879 }
880 av_assert0(keep <= priv->dpb_frames);
881
882 if (discard == 0) {
883 sh->adaptive_ref_pic_marking_mode_flag = 0;
884 } else {
885 sh->adaptive_ref_pic_marking_mode_flag = 1;
886 for (i = 0; i < discard; i++) {
887 VAAPIEncodeH264Picture *old = discard_list[i]->priv_data;
888 av_assert0(old->frame_num < hpic->frame_num);
889 sh->mmco[i].memory_management_control_operation = 1;
890 sh->mmco[i].difference_of_pic_nums_minus1 =
891 hpic->frame_num - old->frame_num - 1;
892 }
893 sh->mmco[i].memory_management_control_operation = 0;
894 }
895 }
896
897 // If the intended references are not the first entries of RefPicListN
898 // by default, use ref-pic-list-modification to move them there.
899 if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
900 VAAPIEncodePicture *def_l0[MAX_DPB_SIZE], *def_l1[MAX_DPB_SIZE];
901 VAAPIEncodeH264Picture *href;
902 int n;
903
904 vaapi_encode_h264_default_ref_pic_list(avctx, pic,
905 def_l0, def_l1, &n);
906
907 if (pic->type == PICTURE_TYPE_P) {
908 int need_rplm = 0;
909 for (i = 0; i < pic->nb_refs; i++) {
910 av_assert0(pic->refs[i]);
911 if (pic->refs[i] != def_l0[i])
912 need_rplm = 1;
913 }
914
915 sh->ref_pic_list_modification_flag_l0 = need_rplm;
916 if (need_rplm) {
917 int pic_num = hpic->frame_num;
918 for (i = 0; i < pic->nb_refs; i++) {
919 href = pic->refs[i]->priv_data;
920 av_assert0(href->frame_num != pic_num);
921 if (href->frame_num < pic_num) {
922 sh->rplm_l0[i].modification_of_pic_nums_idc = 0;
923 sh->rplm_l0[i].abs_diff_pic_num_minus1 =
924 pic_num - href->frame_num - 1;
925 } else {
926 sh->rplm_l0[i].modification_of_pic_nums_idc = 1;
927 sh->rplm_l0[i].abs_diff_pic_num_minus1 =
928 href->frame_num - pic_num - 1;
929 }
930 pic_num = href->frame_num;
931 }
932 sh->rplm_l0[i].modification_of_pic_nums_idc = 3;
933 }
934
935 } else {
936 int need_rplm_l0 = 0, need_rplm_l1 = 0;
937 int n0 = 0, n1 = 0;
938 for (i = 0; i < pic->nb_refs; i++) {
939 av_assert0(pic->refs[i]);
940 href = pic->refs[i]->priv_data;
941 av_assert0(href->pic_order_cnt != hpic->pic_order_cnt);
942 if (href->pic_order_cnt < hpic->pic_order_cnt) {
943 if (pic->refs[i] != def_l0[n0])
944 need_rplm_l0 = 1;
945 ++n0;
946 } else {
947 if (pic->refs[i] != def_l1[n1])
948 need_rplm_l1 = 1;
949 ++n1;
950 }
951 }
952
953 sh->ref_pic_list_modification_flag_l0 = need_rplm_l0;
954 if (need_rplm_l0) {
955 int pic_num = hpic->frame_num;
956 for (i = j = 0; i < pic->nb_refs; i++) {
957 href = pic->refs[i]->priv_data;
958 if (href->pic_order_cnt > hpic->pic_order_cnt)
959 continue;
960 av_assert0(href->frame_num != pic_num);
961 if (href->frame_num < pic_num) {
962 sh->rplm_l0[j].modification_of_pic_nums_idc = 0;
963 sh->rplm_l0[j].abs_diff_pic_num_minus1 =
964 pic_num - href->frame_num - 1;
965 } else {
966 sh->rplm_l0[j].modification_of_pic_nums_idc = 1;
967 sh->rplm_l0[j].abs_diff_pic_num_minus1 =
968 href->frame_num - pic_num - 1;
969 }
970 pic_num = href->frame_num;
971 ++j;
972 }
973 av_assert0(j == n0);
974 sh->rplm_l0[j].modification_of_pic_nums_idc = 3;
975 }
976
977 sh->ref_pic_list_modification_flag_l1 = need_rplm_l1;
978 if (need_rplm_l1) {
979 int pic_num = hpic->frame_num;
980 for (i = j = 0; i < pic->nb_refs; i++) {
981 href = pic->refs[i]->priv_data;
982 if (href->pic_order_cnt < hpic->pic_order_cnt)
983 continue;
984 av_assert0(href->frame_num != pic_num);
985 if (href->frame_num < pic_num) {
986 sh->rplm_l1[j].modification_of_pic_nums_idc = 0;
987 sh->rplm_l1[j].abs_diff_pic_num_minus1 =
988 pic_num - href->frame_num - 1;
989 } else {
990 sh->rplm_l1[j].modification_of_pic_nums_idc = 1;
991 sh->rplm_l1[j].abs_diff_pic_num_minus1 =
992 href->frame_num - pic_num - 1;
993 }
994 pic_num = href->frame_num;
995 ++j;
996 }
997 av_assert0(j == n1);
998 sh->rplm_l1[j].modification_of_pic_nums_idc = 3;
999 }
1000 }
1001 }
1002
1003 vslice->macroblock_address = slice->block_start;
1004 vslice->num_macroblocks = slice->block_size;
1005
1006 vslice->macroblock_info = VA_INVALID_ID;
1007
1008 vslice->slice_type = sh->slice_type % 5;
1009 vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
1010 vslice->idr_pic_id = sh->idr_pic_id;
1011
1012 vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
1013
1014 vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
1015
1016 for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1017 vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1018 vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1019 vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1020 vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1021 }
1022
1023 av_assert0(pic->nb_refs <= 2);
1024 if (pic->nb_refs >= 1) {
1025 // Backward reference for P- or B-frame.
1026 av_assert0(pic->type == PICTURE_TYPE_P ||
1027 pic->type == PICTURE_TYPE_B);
1028 vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1029 }
1030 if (pic->nb_refs >= 2) {
1031 // Forward reference for B-frame.
1032 av_assert0(pic->type == PICTURE_TYPE_B);
1033 vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1034 }
1035
1036 vslice->slice_qp_delta = sh->slice_qp_delta;
1037
1038 return 0;
1039 }
1040
1041 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
1042 {
1043 VAAPIEncodeContext *ctx = avctx->priv_data;
1044 VAAPIEncodeH264Context *priv = avctx->priv_data;
1045 int err;
1046
1047 err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
1048 if (err < 0)
1049 return err;
1050
1051 priv->mb_width = FFALIGN(avctx->width, 16) / 16;
1052 priv->mb_height = FFALIGN(avctx->height, 16) / 16;
1053
1054 if (ctx->va_rc_mode == VA_RC_CQP) {
1055 priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1056 if (avctx->i_quant_factor > 0.0)
1057 priv->fixed_qp_idr =
1058 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1059 avctx->i_quant_offset) + 0.5, 1, 51);
1060 else
1061 priv->fixed_qp_idr = priv->fixed_qp_p;
1062 if (avctx->b_quant_factor > 0.0)
1063 priv->fixed_qp_b =
1064 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1065 avctx->b_quant_offset) + 0.5, 1, 51);
1066 else
1067 priv->fixed_qp_b = priv->fixed_qp_p;
1068
1069 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1070 "%d / %d / %d for IDR- / P- / B-frames.\n",
1071 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1072
1073 } else {
1074 // These still need to be set for pic_init_qp/slice_qp_delta.
1075 priv->fixed_qp_idr = 26;
1076 priv->fixed_qp_p = 26;
1077 priv->fixed_qp_b = 26;
1078 }
1079
1080 if (!ctx->rc_mode->hrd) {
1081 // Timing SEI requires a mode respecting HRD parameters.
1082 priv->sei &= ~SEI_TIMING;
1083 }
1084
1085 if (priv->sei & SEI_IDENTIFIER) {
1086 const char *lavc = LIBAVCODEC_IDENT;
1087 const char *vaapi = VA_VERSION_S;
1088 const char *driver;
1089 int len;
1090
1091 memcpy(priv->sei_identifier.uuid_iso_iec_11578,
1092 vaapi_encode_h264_sei_identifier_uuid,
1093 sizeof(priv->sei_identifier.uuid_iso_iec_11578));
1094
1095 driver = vaQueryVendorString(ctx->hwctx->display);
1096 if (!driver)
1097 driver = "unknown driver";
1098
1099 len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
1100 if (len >= 0) {
1101 priv->sei_identifier_string = av_malloc(len + 1);
1102 if (!priv->sei_identifier_string)
1103 return AVERROR(ENOMEM);
1104
1105 snprintf(priv->sei_identifier_string, len + 1,
1106 "%s / VAAPI %s / %s", lavc, vaapi, driver);
1107
1108 priv->sei_identifier.data = priv->sei_identifier_string;
1109 priv->sei_identifier.data_length = len + 1;
1110 }
1111 }
1112
1113 ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
1114
1115 return 0;
1116 }
1117
1118 static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {
1119 { FF_PROFILE_H264_HIGH, 8, 3, 1, 1, VAProfileH264High },
1120 { FF_PROFILE_H264_MAIN, 8, 3, 1, 1, VAProfileH264Main },
1121 { FF_PROFILE_H264_CONSTRAINED_BASELINE,
1122 8, 3, 1, 1, VAProfileH264ConstrainedBaseline },
1123 { FF_PROFILE_UNKNOWN }
1124 };
1125
1126 static const VAAPIEncodeType vaapi_encode_type_h264 = {
1127 .profiles = vaapi_encode_h264_profiles,
1128
1129 .flags = FLAG_SLICE_CONTROL |
1130 FLAG_B_PICTURES |
1131 FLAG_B_PICTURE_REFERENCES |
1132 FLAG_NON_IDR_KEY_PICTURES,
1133
1134 .default_quality = 20,
1135
1136 .configure = &vaapi_encode_h264_configure,
1137
1138 .picture_priv_data_size = sizeof(VAAPIEncodeH264Picture),
1139
1140 .sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
1141 .init_sequence_params = &vaapi_encode_h264_init_sequence_params,
1142
1143 .picture_params_size = sizeof(VAEncPictureParameterBufferH264),
1144 .init_picture_params = &vaapi_encode_h264_init_picture_params,
1145
1146 .slice_params_size = sizeof(VAEncSliceParameterBufferH264),
1147 .init_slice_params = &vaapi_encode_h264_init_slice_params,
1148
1149 .sequence_header_type = VAEncPackedHeaderSequence,
1150 .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1151
1152 .slice_header_type = VAEncPackedHeaderH264_Slice,
1153 .write_slice_header = &vaapi_encode_h264_write_slice_header,
1154
1155 .write_extra_header = &vaapi_encode_h264_write_extra_header,
1156 };
1157
1158 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
1159 {
1160 VAAPIEncodeContext *ctx = avctx->priv_data;
1161 VAAPIEncodeH264Context *priv = avctx->priv_data;
1162
1163 ctx->codec = &vaapi_encode_type_h264;
1164
1165 if (avctx->profile == FF_PROFILE_UNKNOWN)
1166 avctx->profile = priv->profile;
1167 if (avctx->level == FF_LEVEL_UNKNOWN)
1168 avctx->level = priv->level;
1169 if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
1170 avctx->compression_level = priv->quality;
1171
1172 // Reject unsupported profiles.
1173 switch (avctx->profile) {
1174 case FF_PROFILE_H264_BASELINE:
1175 av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
1176 "supported, using constrained baseline profile instead.\n");
1177 avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
1178 break;
1179 case FF_PROFILE_H264_EXTENDED:
1180 av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1181 "is not supported.\n");
1182 return AVERROR_PATCHWELCOME;
1183 case FF_PROFILE_H264_HIGH_10:
1184 case FF_PROFILE_H264_HIGH_10_INTRA:
1185 av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1186 "are not supported.\n");
1187 return AVERROR_PATCHWELCOME;
1188 case FF_PROFILE_H264_HIGH_422:
1189 case FF_PROFILE_H264_HIGH_422_INTRA:
1190 case FF_PROFILE_H264_HIGH_444:
1191 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1192 case FF_PROFILE_H264_HIGH_444_INTRA:
1193 case FF_PROFILE_H264_CAVLC_444:
1194 av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1195 "are not supported.\n");
1196 return AVERROR_PATCHWELCOME;
1197 }
1198
1199 if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1200 av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1201 "in 8-bit unsigned integer.\n", avctx->level);
1202 return AVERROR(EINVAL);
1203 }
1204
1205 ctx->desired_packed_headers =
1206 VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
1207 VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
1208 VA_ENC_PACKED_HEADER_MISC; // SEI.
1209
1210 ctx->surface_width = FFALIGN(avctx->width, 16);
1211 ctx->surface_height = FFALIGN(avctx->height, 16);
1212
1213 ctx->slice_block_height = ctx->slice_block_width = 16;
1214
1215 if (priv->qp > 0)
1216 ctx->explicit_qp = priv->qp;
1217
1218 return ff_vaapi_encode_init(avctx);
1219 }
1220
1221 static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
1222 {
1223 VAAPIEncodeH264Context *priv = avctx->priv_data;
1224
1225 ff_cbs_fragment_free(&priv->current_access_unit);
1226 ff_cbs_close(&priv->cbc);
1227 av_freep(&priv->sei_identifier_string);
1228
1229 return ff_vaapi_encode_close(avctx);
1230 }
1231
1232 #define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)
1233 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1234 static const AVOption vaapi_encode_h264_options[] = {
1235 VAAPI_ENCODE_COMMON_OPTIONS,
1236 VAAPI_ENCODE_RC_OPTIONS,
1237
1238 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1239 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1240 { "quality", "Set encode quality (trades off against speed, higher is faster)",
1241 OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
1242 { "coder", "Entropy coder type",
1243 OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
1244 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1245 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1246 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1247 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1248
1249 { "aud", "Include AUD",
1250 OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1251
1252 { "sei", "Set SEI to include",
1253 OFFSET(sei), AV_OPT_TYPE_FLAGS,
1254 { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1255 0, INT_MAX, FLAGS, "sei" },
1256 { "identifier", "Include encoder version identifier",
1257 0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1258 INT_MIN, INT_MAX, FLAGS, "sei" },
1259 { "timing", "Include timing parameters (buffering_period and pic_timing)",
1260 0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1261 INT_MIN, INT_MAX, FLAGS, "sei" },
1262 { "recovery_point", "Include recovery points where appropriate",
1263 0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1264 INT_MIN, INT_MAX, FLAGS, "sei" },
1265
1266 { "profile", "Set profile (profile_idc and constraint_set*_flag)",
1267 OFFSET(profile), AV_OPT_TYPE_INT,
1268 { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, FLAGS, "profile" },
1269
1270 #define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1271 { .i64 = value }, 0, 0, FLAGS, "profile"
1272 { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
1273 { PROFILE("main", FF_PROFILE_H264_MAIN) },
1274 { PROFILE("high", FF_PROFILE_H264_HIGH) },
1275 #undef PROFILE
1276
1277 { "level", "Set level (level_idc)",
1278 OFFSET(level), AV_OPT_TYPE_INT,
1279 { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1280
1281 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1282 { .i64 = value }, 0, 0, FLAGS, "level"
1283 { LEVEL("1", 10) },
1284 { LEVEL("1.1", 11) },
1285 { LEVEL("1.2", 12) },
1286 { LEVEL("1.3", 13) },
1287 { LEVEL("2", 20) },
1288 { LEVEL("2.1", 21) },
1289 { LEVEL("2.2", 22) },
1290 { LEVEL("3", 30) },
1291 { LEVEL("3.1", 31) },
1292 { LEVEL("3.2", 32) },
1293 { LEVEL("4", 40) },
1294 { LEVEL("4.1", 41) },
1295 { LEVEL("4.2", 42) },
1296 { LEVEL("5", 50) },
1297 { LEVEL("5.1", 51) },
1298 { LEVEL("5.2", 52) },
1299 { LEVEL("6", 60) },
1300 { LEVEL("6.1", 61) },
1301 { LEVEL("6.2", 62) },
1302 #undef LEVEL
1303
1304 { NULL },
1305 };
1306
1307 static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1308 { "b", "0" },
1309 { "bf", "2" },
1310 { "g", "120" },
1311 { "i_qfactor", "1" },
1312 { "i_qoffset", "0" },
1313 { "b_qfactor", "6/5" },
1314 { "b_qoffset", "0" },
1315 { "qmin", "-1" },
1316 { "qmax", "-1" },
1317 { NULL },
1318 };
1319
1320 static const AVClass vaapi_encode_h264_class = {
1321 .class_name = "h264_vaapi",
1322 .item_name = av_default_item_name,
1323 .option = vaapi_encode_h264_options,
1324 .version = LIBAVUTIL_VERSION_INT,
1325 };
1326
1327 const AVCodec ff_h264_vaapi_encoder = {
1328 .name = "h264_vaapi",
1329 .long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1330 .type = AVMEDIA_TYPE_VIDEO,
1331 .id = AV_CODEC_ID_H264,
1332 .priv_data_size = sizeof(VAAPIEncodeH264Context),
1333 .init = &vaapi_encode_h264_init,
1334 .receive_packet = &ff_vaapi_encode_receive_packet,
1335 .close = &vaapi_encode_h264_close,
1336 .priv_class = &vaapi_encode_h264_class,
1337 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
1338 AV_CODEC_CAP_DR1,
1339 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1340 .defaults = vaapi_encode_h264_defaults,
1341 .pix_fmts = (const enum AVPixelFormat[]) {
1342 AV_PIX_FMT_VAAPI,
1343 AV_PIX_FMT_NONE,
1344 },
1345 .hw_configs = ff_vaapi_encode_hw_configs,
1346 .wrapper_name = "vaapi",
1347 };
1348