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 "codec_internal.h"
33 #include "h264.h"
34 #include "h264_levels.h"
35 #include "h264_sei.h"
36 #include "vaapi_encode.h"
37 #include "version.h"
38
39 enum {
40 SEI_TIMING = 0x01,
41 SEI_IDENTIFIER = 0x02,
42 SEI_RECOVERY_POINT = 0x04,
43 };
44
45 // Random (version 4) ISO 11578 UUID.
46 static const uint8_t vaapi_encode_h264_sei_identifier_uuid[16] = {
47 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
48 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
49 };
50
51 typedef struct VAAPIEncodeH264Picture {
52 int frame_num;
53 int pic_order_cnt;
54
55 int64_t last_idr_frame;
56 uint16_t idr_pic_id;
57
58 int primary_pic_type;
59 int slice_type;
60
61 int cpb_delay;
62 int dpb_delay;
63 } VAAPIEncodeH264Picture;
64
65 typedef struct VAAPIEncodeH264Context {
66 VAAPIEncodeContext common;
67
68 // User options.
69 int qp;
70 int quality;
71 int coder;
72 int aud;
73 int sei;
74 int profile;
75 int level;
76
77 // Derived settings.
78 int mb_width;
79 int mb_height;
80
81 int fixed_qp_idr;
82 int fixed_qp_p;
83 int fixed_qp_b;
84
85 int dpb_frames;
86
87 // Writer structures.
88 CodedBitstreamContext *cbc;
89 CodedBitstreamFragment current_access_unit;
90
91 H264RawAUD raw_aud;
92 H264RawSPS raw_sps;
93 H264RawPPS raw_pps;
94 H264RawSlice raw_slice;
95
96 H264RawSEIBufferingPeriod sei_buffering_period;
97 H264RawSEIPicTiming sei_pic_timing;
98 H264RawSEIRecoveryPoint sei_recovery_point;
99 SEIRawUserDataUnregistered sei_identifier;
100 char *sei_identifier_string;
101
102 int aud_needed;
103 int sei_needed;
104 int sei_cbr_workaround_needed;
105 } VAAPIEncodeH264Context;
106
107
vaapi_encode_h264_write_access_unit(AVCodecContext *avctx, char *data, size_t *data_len, CodedBitstreamFragment *au)108 static int vaapi_encode_h264_write_access_unit(AVCodecContext *avctx,
109 char *data, size_t *data_len,
110 CodedBitstreamFragment *au)
111 {
112 VAAPIEncodeH264Context *priv = avctx->priv_data;
113 int err;
114
115 err = ff_cbs_write_fragment_data(priv->cbc, au);
116 if (err < 0) {
117 av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
118 return err;
119 }
120
121 if (*data_len < 8 * au->data_size - au->data_bit_padding) {
122 av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
123 "%zu < %zu.\n", *data_len,
124 8 * au->data_size - au->data_bit_padding);
125 return AVERROR(ENOSPC);
126 }
127
128 memcpy(data, au->data, au->data_size);
129 *data_len = 8 * au->data_size - au->data_bit_padding;
130
131 return 0;
132 }
133
vaapi_encode_h264_add_nal(AVCodecContext *avctx, CodedBitstreamFragment *au, void *nal_unit)134 static int vaapi_encode_h264_add_nal(AVCodecContext *avctx,
135 CodedBitstreamFragment *au,
136 void *nal_unit)
137 {
138 H264RawNALUnitHeader *header = nal_unit;
139 int err;
140
141 err = ff_cbs_insert_unit_content(au, -1,
142 header->nal_unit_type, nal_unit, NULL);
143 if (err < 0) {
144 av_log(avctx, AV_LOG_ERROR, "Failed to add NAL unit: "
145 "type = %d.\n", header->nal_unit_type);
146 return err;
147 }
148
149 return 0;
150 }
151
vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx, char *data, size_t *data_len)152 static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
153 char *data, size_t *data_len)
154 {
155 VAAPIEncodeH264Context *priv = avctx->priv_data;
156 CodedBitstreamFragment *au = &priv->current_access_unit;
157 int err;
158
159 if (priv->aud_needed) {
160 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
161 if (err < 0)
162 goto fail;
163 priv->aud_needed = 0;
164 }
165
166 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_sps);
167 if (err < 0)
168 goto fail;
169
170 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_pps);
171 if (err < 0)
172 goto fail;
173
174 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
175 fail:
176 ff_cbs_fragment_reset(au);
177 return err;
178 }
179
vaapi_encode_h264_write_slice_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len)180 static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
181 VAAPIEncodePicture *pic,
182 VAAPIEncodeSlice *slice,
183 char *data, size_t *data_len)
184 {
185 VAAPIEncodeH264Context *priv = avctx->priv_data;
186 CodedBitstreamFragment *au = &priv->current_access_unit;
187 int err;
188
189 if (priv->aud_needed) {
190 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
191 if (err < 0)
192 goto fail;
193 priv->aud_needed = 0;
194 }
195
196 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_slice);
197 if (err < 0)
198 goto fail;
199
200 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
201 fail:
202 ff_cbs_fragment_reset(au);
203 return err;
204 }
205
vaapi_encode_h264_write_extra_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, int index, int *type, char *data, size_t *data_len)206 static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
207 VAAPIEncodePicture *pic,
208 int index, int *type,
209 char *data, size_t *data_len)
210 {
211 VAAPIEncodeH264Context *priv = avctx->priv_data;
212 CodedBitstreamFragment *au = &priv->current_access_unit;
213 int err;
214
215 if (priv->sei_needed) {
216 if (priv->aud_needed) {
217 err = vaapi_encode_h264_add_nal(avctx, au, &priv->raw_aud);
218 if (err < 0)
219 goto fail;
220 priv->aud_needed = 0;
221 }
222
223 if (priv->sei_needed & SEI_IDENTIFIER) {
224 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
225 SEI_TYPE_USER_DATA_UNREGISTERED,
226 &priv->sei_identifier, NULL);
227 if (err < 0)
228 goto fail;
229 }
230 if (priv->sei_needed & SEI_TIMING) {
231 if (pic->type == PICTURE_TYPE_IDR) {
232 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
233 SEI_TYPE_BUFFERING_PERIOD,
234 &priv->sei_buffering_period, NULL);
235 if (err < 0)
236 goto fail;
237 }
238 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
239 SEI_TYPE_PIC_TIMING,
240 &priv->sei_pic_timing, NULL);
241 if (err < 0)
242 goto fail;
243 }
244 if (priv->sei_needed & SEI_RECOVERY_POINT) {
245 err = ff_cbs_sei_add_message(priv->cbc, au, 1,
246 SEI_TYPE_RECOVERY_POINT,
247 &priv->sei_recovery_point, NULL);
248 if (err < 0)
249 goto fail;
250 }
251
252 priv->sei_needed = 0;
253
254 err = vaapi_encode_h264_write_access_unit(avctx, data, data_len, au);
255 if (err < 0)
256 goto fail;
257
258 ff_cbs_fragment_reset(au);
259
260 *type = VAEncPackedHeaderRawData;
261 return 0;
262
263 #if !CONFIG_VAAPI_1
264 } else if (priv->sei_cbr_workaround_needed) {
265 // Insert a zero-length header using the old SEI type. This is
266 // required to avoid triggering broken behaviour on Intel platforms
267 // in CBR mode where an invalid SEI message is generated by the
268 // driver and inserted into the stream.
269 *data_len = 0;
270 *type = VAEncPackedHeaderH264_SEI;
271 priv->sei_cbr_workaround_needed = 0;
272 return 0;
273 #endif
274
275 } else {
276 return AVERROR_EOF;
277 }
278
279 fail:
280 ff_cbs_fragment_reset(au);
281 return err;
282 }
283
vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)284 static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
285 {
286 VAAPIEncodeContext *ctx = avctx->priv_data;
287 VAAPIEncodeH264Context *priv = avctx->priv_data;
288 H264RawSPS *sps = &priv->raw_sps;
289 H264RawPPS *pps = &priv->raw_pps;
290 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
291 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
292
293 memset(sps, 0, sizeof(*sps));
294 memset(pps, 0, sizeof(*pps));
295
296 sps->nal_unit_header.nal_ref_idc = 3;
297 sps->nal_unit_header.nal_unit_type = H264_NAL_SPS;
298
299 sps->profile_idc = avctx->profile & 0xff;
300
301 if (avctx->profile == FF_PROFILE_H264_CONSTRAINED_BASELINE ||
302 avctx->profile == FF_PROFILE_H264_MAIN)
303 sps->constraint_set1_flag = 1;
304
305 if (avctx->profile == FF_PROFILE_H264_HIGH)
306 sps->constraint_set3_flag = ctx->gop_size == 1;
307
308 if (avctx->profile == FF_PROFILE_H264_MAIN ||
309 avctx->profile == FF_PROFILE_H264_HIGH) {
310 sps->constraint_set4_flag = 1;
311 sps->constraint_set5_flag = ctx->b_per_p == 0;
312 }
313
314 if (ctx->gop_size == 1)
315 priv->dpb_frames = 0;
316 else
317 priv->dpb_frames = 1 + ctx->max_b_depth;
318
319 if (avctx->level != FF_LEVEL_UNKNOWN) {
320 sps->level_idc = avctx->level;
321 } else {
322 const H264LevelDescriptor *level;
323 int framerate;
324
325 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
326 framerate = avctx->framerate.num / avctx->framerate.den;
327 else
328 framerate = 0;
329
330 level = ff_h264_guess_level(sps->profile_idc,
331 avctx->bit_rate,
332 framerate,
333 priv->mb_width * 16,
334 priv->mb_height * 16,
335 priv->dpb_frames);
336 if (level) {
337 av_log(avctx, AV_LOG_VERBOSE, "Using level %s.\n", level->name);
338 if (level->constraint_set3_flag)
339 sps->constraint_set3_flag = 1;
340 sps->level_idc = level->level_idc;
341 } else {
342 av_log(avctx, AV_LOG_WARNING, "Stream will not conform "
343 "to any level: using level 6.2.\n");
344 sps->level_idc = 62;
345 }
346 }
347
348 sps->seq_parameter_set_id = 0;
349 sps->chroma_format_idc = 1;
350
351 sps->log2_max_frame_num_minus4 = 4;
352 sps->pic_order_cnt_type = 0;
353 sps->log2_max_pic_order_cnt_lsb_minus4 = 4;
354
355 sps->max_num_ref_frames = priv->dpb_frames;
356
357 sps->pic_width_in_mbs_minus1 = priv->mb_width - 1;
358 sps->pic_height_in_map_units_minus1 = priv->mb_height - 1;
359
360 sps->frame_mbs_only_flag = 1;
361 sps->direct_8x8_inference_flag = 1;
362
363 if (avctx->width != 16 * priv->mb_width ||
364 avctx->height != 16 * priv->mb_height) {
365 sps->frame_cropping_flag = 1;
366
367 sps->frame_crop_left_offset = 0;
368 sps->frame_crop_right_offset =
369 (16 * priv->mb_width - avctx->width) / 2;
370 sps->frame_crop_top_offset = 0;
371 sps->frame_crop_bottom_offset =
372 (16 * priv->mb_height - avctx->height) / 2;
373 } else {
374 sps->frame_cropping_flag = 0;
375 }
376
377 sps->vui_parameters_present_flag = 1;
378
379 if (avctx->sample_aspect_ratio.num != 0 &&
380 avctx->sample_aspect_ratio.den != 0) {
381 static const AVRational sar_idc[] = {
382 { 0, 0 },
383 { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
384 { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
385 { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
386 { 160, 99 }, { 4, 3 }, { 3, 2 }, { 2, 1 },
387 };
388 int num, den, i;
389 av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
390 avctx->sample_aspect_ratio.den, 65535);
391 for (i = 0; i < FF_ARRAY_ELEMS(sar_idc); i++) {
392 if (num == sar_idc[i].num &&
393 den == sar_idc[i].den) {
394 sps->vui.aspect_ratio_idc = i;
395 break;
396 }
397 }
398 if (i >= FF_ARRAY_ELEMS(sar_idc)) {
399 sps->vui.aspect_ratio_idc = 255;
400 sps->vui.sar_width = num;
401 sps->vui.sar_height = den;
402 }
403 sps->vui.aspect_ratio_info_present_flag = 1;
404 }
405
406 // Unspecified video format, from table E-2.
407 sps->vui.video_format = 5;
408 sps->vui.video_full_range_flag =
409 avctx->color_range == AVCOL_RANGE_JPEG;
410 sps->vui.colour_primaries = avctx->color_primaries;
411 sps->vui.transfer_characteristics = avctx->color_trc;
412 sps->vui.matrix_coefficients = avctx->colorspace;
413 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
414 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
415 avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
416 sps->vui.colour_description_present_flag = 1;
417 if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED ||
418 sps->vui.colour_description_present_flag)
419 sps->vui.video_signal_type_present_flag = 1;
420
421 if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
422 sps->vui.chroma_loc_info_present_flag = 1;
423 sps->vui.chroma_sample_loc_type_top_field =
424 sps->vui.chroma_sample_loc_type_bottom_field =
425 avctx->chroma_sample_location - 1;
426 }
427
428 sps->vui.timing_info_present_flag = 1;
429 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
430 sps->vui.num_units_in_tick = avctx->framerate.den;
431 sps->vui.time_scale = 2 * avctx->framerate.num;
432 sps->vui.fixed_frame_rate_flag = 1;
433 } else {
434 sps->vui.num_units_in_tick = avctx->time_base.num;
435 sps->vui.time_scale = 2 * avctx->time_base.den;
436 sps->vui.fixed_frame_rate_flag = 0;
437 }
438
439 if (priv->sei & SEI_TIMING) {
440 H264RawHRD *hrd = &sps->vui.nal_hrd_parameters;
441 H264RawSEIBufferingPeriod *bp = &priv->sei_buffering_period;
442
443 sps->vui.nal_hrd_parameters_present_flag = 1;
444
445 hrd->cpb_cnt_minus1 = 0;
446
447 // Try to scale these to a sensible range so that the
448 // golomb encode of the value is not overlong.
449 hrd->bit_rate_scale =
450 av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4);
451 hrd->bit_rate_value_minus1[0] =
452 (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1;
453
454 hrd->cpb_size_scale =
455 av_clip_uintp2(av_log2(ctx->hrd_params.buffer_size) - 15 - 4, 4);
456 hrd->cpb_size_value_minus1[0] =
457 (ctx->hrd_params.buffer_size >> hrd->cpb_size_scale + 4) - 1;
458
459 // CBR mode as defined for the HRD cannot be achieved without filler
460 // data, so this flag cannot be set even with VAAPI CBR modes.
461 hrd->cbr_flag[0] = 0;
462
463 hrd->initial_cpb_removal_delay_length_minus1 = 23;
464 hrd->cpb_removal_delay_length_minus1 = 23;
465 hrd->dpb_output_delay_length_minus1 = 7;
466 hrd->time_offset_length = 0;
467
468 bp->seq_parameter_set_id = sps->seq_parameter_set_id;
469
470 // This calculation can easily overflow 32 bits.
471 bp->nal.initial_cpb_removal_delay[0] = 90000 *
472 (uint64_t)ctx->hrd_params.initial_buffer_fullness /
473 ctx->hrd_params.buffer_size;
474 bp->nal.initial_cpb_removal_delay_offset[0] = 0;
475 } else {
476 sps->vui.nal_hrd_parameters_present_flag = 0;
477 sps->vui.low_delay_hrd_flag = 1 - sps->vui.fixed_frame_rate_flag;
478 }
479
480 sps->vui.bitstream_restriction_flag = 1;
481 sps->vui.motion_vectors_over_pic_boundaries_flag = 1;
482 sps->vui.log2_max_mv_length_horizontal = 15;
483 sps->vui.log2_max_mv_length_vertical = 15;
484 sps->vui.max_num_reorder_frames = ctx->max_b_depth;
485 sps->vui.max_dec_frame_buffering = ctx->max_b_depth + 1;
486
487 pps->nal_unit_header.nal_ref_idc = 3;
488 pps->nal_unit_header.nal_unit_type = H264_NAL_PPS;
489
490 pps->pic_parameter_set_id = 0;
491 pps->seq_parameter_set_id = 0;
492
493 pps->entropy_coding_mode_flag =
494 !(sps->profile_idc == FF_PROFILE_H264_BASELINE ||
495 sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
496 sps->profile_idc == FF_PROFILE_H264_CAVLC_444);
497 if (!priv->coder && pps->entropy_coding_mode_flag)
498 pps->entropy_coding_mode_flag = 0;
499
500 pps->num_ref_idx_l0_default_active_minus1 = 0;
501 pps->num_ref_idx_l1_default_active_minus1 = 0;
502
503 pps->pic_init_qp_minus26 = priv->fixed_qp_idr - 26;
504
505 if (sps->profile_idc == FF_PROFILE_H264_BASELINE ||
506 sps->profile_idc == FF_PROFILE_H264_EXTENDED ||
507 sps->profile_idc == FF_PROFILE_H264_MAIN) {
508 pps->more_rbsp_data = 0;
509 } else {
510 pps->more_rbsp_data = 1;
511
512 pps->transform_8x8_mode_flag = 1;
513 }
514
515 *vseq = (VAEncSequenceParameterBufferH264) {
516 .seq_parameter_set_id = sps->seq_parameter_set_id,
517 .level_idc = sps->level_idc,
518 .intra_period = ctx->gop_size,
519 .intra_idr_period = ctx->gop_size,
520 .ip_period = ctx->b_per_p + 1,
521
522 .bits_per_second = ctx->va_bit_rate,
523 .max_num_ref_frames = sps->max_num_ref_frames,
524 .picture_width_in_mbs = sps->pic_width_in_mbs_minus1 + 1,
525 .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1,
526
527 .seq_fields.bits = {
528 .chroma_format_idc = sps->chroma_format_idc,
529 .frame_mbs_only_flag = sps->frame_mbs_only_flag,
530 .mb_adaptive_frame_field_flag = sps->mb_adaptive_frame_field_flag,
531 .seq_scaling_matrix_present_flag = sps->seq_scaling_matrix_present_flag,
532 .direct_8x8_inference_flag = sps->direct_8x8_inference_flag,
533 .log2_max_frame_num_minus4 = sps->log2_max_frame_num_minus4,
534 .pic_order_cnt_type = sps->pic_order_cnt_type,
535 .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4,
536 .delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag,
537 },
538
539 .bit_depth_luma_minus8 = sps->bit_depth_luma_minus8,
540 .bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8,
541
542 .frame_cropping_flag = sps->frame_cropping_flag,
543 .frame_crop_left_offset = sps->frame_crop_left_offset,
544 .frame_crop_right_offset = sps->frame_crop_right_offset,
545 .frame_crop_top_offset = sps->frame_crop_top_offset,
546 .frame_crop_bottom_offset = sps->frame_crop_bottom_offset,
547
548 .vui_parameters_present_flag = sps->vui_parameters_present_flag,
549
550 .vui_fields.bits = {
551 .aspect_ratio_info_present_flag = sps->vui.aspect_ratio_info_present_flag,
552 .timing_info_present_flag = sps->vui.timing_info_present_flag,
553 .bitstream_restriction_flag = sps->vui.bitstream_restriction_flag,
554 .log2_max_mv_length_horizontal = sps->vui.log2_max_mv_length_horizontal,
555 .log2_max_mv_length_vertical = sps->vui.log2_max_mv_length_vertical,
556 },
557
558 .aspect_ratio_idc = sps->vui.aspect_ratio_idc,
559 .sar_width = sps->vui.sar_width,
560 .sar_height = sps->vui.sar_height,
561 .num_units_in_tick = sps->vui.num_units_in_tick,
562 .time_scale = sps->vui.time_scale,
563 };
564
565 *vpic = (VAEncPictureParameterBufferH264) {
566 .CurrPic = {
567 .picture_id = VA_INVALID_ID,
568 .flags = VA_PICTURE_H264_INVALID,
569 },
570
571 .coded_buf = VA_INVALID_ID,
572
573 .pic_parameter_set_id = pps->pic_parameter_set_id,
574 .seq_parameter_set_id = pps->seq_parameter_set_id,
575
576 .pic_init_qp = pps->pic_init_qp_minus26 + 26,
577 .num_ref_idx_l0_active_minus1 = pps->num_ref_idx_l0_default_active_minus1,
578 .num_ref_idx_l1_active_minus1 = pps->num_ref_idx_l1_default_active_minus1,
579
580 .chroma_qp_index_offset = pps->chroma_qp_index_offset,
581 .second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset,
582
583 .pic_fields.bits = {
584 .entropy_coding_mode_flag = pps->entropy_coding_mode_flag,
585 .weighted_pred_flag = pps->weighted_pred_flag,
586 .weighted_bipred_idc = pps->weighted_bipred_idc,
587 .constrained_intra_pred_flag = pps->constrained_intra_pred_flag,
588 .transform_8x8_mode_flag = pps->transform_8x8_mode_flag,
589 .deblocking_filter_control_present_flag =
590 pps->deblocking_filter_control_present_flag,
591 .redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present_flag,
592 .pic_order_present_flag =
593 pps->bottom_field_pic_order_in_frame_present_flag,
594 .pic_scaling_matrix_present_flag = pps->pic_scaling_matrix_present_flag,
595 },
596 };
597
598 return 0;
599 }
600
vaapi_encode_h264_init_picture_params(AVCodecContext *avctx, VAAPIEncodePicture *pic)601 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
602 VAAPIEncodePicture *pic)
603 {
604 VAAPIEncodeContext *ctx = avctx->priv_data;
605 VAAPIEncodeH264Context *priv = avctx->priv_data;
606 VAAPIEncodeH264Picture *hpic = pic->priv_data;
607 VAAPIEncodePicture *prev = pic->prev;
608 VAAPIEncodeH264Picture *hprev = prev ? prev->priv_data : NULL;
609 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
610 int i;
611
612 if (pic->type == PICTURE_TYPE_IDR) {
613 av_assert0(pic->display_order == pic->encode_order);
614
615 hpic->frame_num = 0;
616 hpic->last_idr_frame = pic->display_order;
617 hpic->idr_pic_id = hprev ? hprev->idr_pic_id + 1 : 0;
618
619 hpic->primary_pic_type = 0;
620 hpic->slice_type = 7;
621 } else {
622 av_assert0(prev);
623
624 hpic->frame_num = hprev->frame_num + prev->is_reference;
625
626 hpic->last_idr_frame = hprev->last_idr_frame;
627 hpic->idr_pic_id = hprev->idr_pic_id;
628
629 if (pic->type == PICTURE_TYPE_I) {
630 hpic->slice_type = 7;
631 hpic->primary_pic_type = 0;
632 } else if (pic->type == PICTURE_TYPE_P) {
633 hpic->slice_type = 5;
634 hpic->primary_pic_type = 1;
635 } else {
636 hpic->slice_type = 6;
637 hpic->primary_pic_type = 2;
638 }
639 }
640 hpic->pic_order_cnt = pic->display_order - hpic->last_idr_frame;
641 hpic->dpb_delay = pic->display_order - pic->encode_order + ctx->max_b_depth;
642 hpic->cpb_delay = pic->encode_order - hpic->last_idr_frame;
643
644 if (priv->aud) {
645 priv->aud_needed = 1;
646 priv->raw_aud = (H264RawAUD) {
647 .nal_unit_header = {
648 .nal_unit_type = H264_NAL_AUD,
649 },
650 .primary_pic_type = hpic->primary_pic_type,
651 };
652 } else {
653 priv->aud_needed = 0;
654 }
655
656 priv->sei_needed = 0;
657
658 if (priv->sei & SEI_IDENTIFIER && pic->encode_order == 0)
659 priv->sei_needed |= SEI_IDENTIFIER;
660 #if !CONFIG_VAAPI_1
661 if (ctx->va_rc_mode == VA_RC_CBR)
662 priv->sei_cbr_workaround_needed = 1;
663 #endif
664
665 if (priv->sei & SEI_TIMING) {
666 priv->sei_pic_timing = (H264RawSEIPicTiming) {
667 .cpb_removal_delay = 2 * hpic->cpb_delay,
668 .dpb_output_delay = 2 * hpic->dpb_delay,
669 };
670
671 priv->sei_needed |= SEI_TIMING;
672 }
673
674 if (priv->sei & SEI_RECOVERY_POINT && pic->type == PICTURE_TYPE_I) {
675 priv->sei_recovery_point = (H264RawSEIRecoveryPoint) {
676 .recovery_frame_cnt = 0,
677 .exact_match_flag = 1,
678 .broken_link_flag = ctx->b_per_p > 0,
679 };
680
681 priv->sei_needed |= SEI_RECOVERY_POINT;
682 }
683
684 vpic->CurrPic = (VAPictureH264) {
685 .picture_id = pic->recon_surface,
686 .frame_idx = hpic->frame_num,
687 .flags = 0,
688 .TopFieldOrderCnt = hpic->pic_order_cnt,
689 .BottomFieldOrderCnt = hpic->pic_order_cnt,
690 };
691
692 for (i = 0; i < pic->nb_refs; i++) {
693 VAAPIEncodePicture *ref = pic->refs[i];
694 VAAPIEncodeH264Picture *href;
695
696 av_assert0(ref && ref->encode_order < pic->encode_order);
697 href = ref->priv_data;
698
699 vpic->ReferenceFrames[i] = (VAPictureH264) {
700 .picture_id = ref->recon_surface,
701 .frame_idx = href->frame_num,
702 .flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE,
703 .TopFieldOrderCnt = href->pic_order_cnt,
704 .BottomFieldOrderCnt = href->pic_order_cnt,
705 };
706 }
707 for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
708 vpic->ReferenceFrames[i] = (VAPictureH264) {
709 .picture_id = VA_INVALID_ID,
710 .flags = VA_PICTURE_H264_INVALID,
711 };
712 }
713
714 vpic->coded_buf = pic->output_buffer;
715
716 vpic->frame_num = hpic->frame_num;
717
718 vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
719 vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
720
721 return 0;
722 }
723
vaapi_encode_h264_default_ref_pic_list(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodePicture **rpl0, VAAPIEncodePicture **rpl1, int *rpl_size)724 static void vaapi_encode_h264_default_ref_pic_list(AVCodecContext *avctx,
725 VAAPIEncodePicture *pic,
726 VAAPIEncodePicture **rpl0,
727 VAAPIEncodePicture **rpl1,
728 int *rpl_size)
729 {
730 VAAPIEncodePicture *prev;
731 VAAPIEncodeH264Picture *hp, *hn, *hc;
732 int i, j, n = 0;
733
734 prev = pic->prev;
735 av_assert0(prev);
736 hp = pic->priv_data;
737
738 for (i = 0; i < pic->prev->nb_dpb_pics; i++) {
739 hn = prev->dpb[i]->priv_data;
740 av_assert0(hn->frame_num < hp->frame_num);
741
742 if (pic->type == PICTURE_TYPE_P) {
743 for (j = n; j > 0; j--) {
744 hc = rpl0[j - 1]->priv_data;
745 av_assert0(hc->frame_num != hn->frame_num);
746 if (hc->frame_num > hn->frame_num)
747 break;
748 rpl0[j] = rpl0[j - 1];
749 }
750 rpl0[j] = prev->dpb[i];
751
752 } else if (pic->type == PICTURE_TYPE_B) {
753 for (j = n; j > 0; j--) {
754 hc = rpl0[j - 1]->priv_data;
755 av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
756 if (hc->pic_order_cnt < hp->pic_order_cnt) {
757 if (hn->pic_order_cnt > hp->pic_order_cnt ||
758 hn->pic_order_cnt < hc->pic_order_cnt)
759 break;
760 } else {
761 if (hn->pic_order_cnt > hc->pic_order_cnt)
762 break;
763 }
764 rpl0[j] = rpl0[j - 1];
765 }
766 rpl0[j] = prev->dpb[i];
767
768 for (j = n; j > 0; j--) {
769 hc = rpl1[j - 1]->priv_data;
770 av_assert0(hc->pic_order_cnt != hp->pic_order_cnt);
771 if (hc->pic_order_cnt > hp->pic_order_cnt) {
772 if (hn->pic_order_cnt < hp->pic_order_cnt ||
773 hn->pic_order_cnt > hc->pic_order_cnt)
774 break;
775 } else {
776 if (hn->pic_order_cnt < hc->pic_order_cnt)
777 break;
778 }
779 rpl1[j] = rpl1[j - 1];
780 }
781 rpl1[j] = prev->dpb[i];
782 }
783
784 ++n;
785 }
786
787 if (pic->type == PICTURE_TYPE_B) {
788 for (i = 0; i < n; i++) {
789 if (rpl0[i] != rpl1[i])
790 break;
791 }
792 if (i == n)
793 FFSWAP(VAAPIEncodePicture*, rpl1[0], rpl1[1]);
794 }
795
796 if (pic->type == PICTURE_TYPE_P ||
797 pic->type == PICTURE_TYPE_B) {
798 av_log(avctx, AV_LOG_DEBUG, "Default RefPicList0 for fn=%d/poc=%d:",
799 hp->frame_num, hp->pic_order_cnt);
800 for (i = 0; i < n; i++) {
801 hn = rpl0[i]->priv_data;
802 av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
803 hn->frame_num, hn->pic_order_cnt);
804 }
805 av_log(avctx, AV_LOG_DEBUG, "\n");
806 }
807 if (pic->type == PICTURE_TYPE_B) {
808 av_log(avctx, AV_LOG_DEBUG, "Default RefPicList1 for fn=%d/poc=%d:",
809 hp->frame_num, hp->pic_order_cnt);
810 for (i = 0; i < n; i++) {
811 hn = rpl1[i]->priv_data;
812 av_log(avctx, AV_LOG_DEBUG, " fn=%d/poc=%d",
813 hn->frame_num, hn->pic_order_cnt);
814 }
815 av_log(avctx, AV_LOG_DEBUG, "\n");
816 }
817
818 *rpl_size = n;
819 }
820
vaapi_encode_h264_init_slice_params(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice)821 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
822 VAAPIEncodePicture *pic,
823 VAAPIEncodeSlice *slice)
824 {
825 VAAPIEncodeH264Context *priv = avctx->priv_data;
826 VAAPIEncodeH264Picture *hpic = pic->priv_data;
827 VAAPIEncodePicture *prev = pic->prev;
828 H264RawSPS *sps = &priv->raw_sps;
829 H264RawPPS *pps = &priv->raw_pps;
830 H264RawSliceHeader *sh = &priv->raw_slice.header;
831 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
832 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
833 int i, j;
834
835 if (pic->type == PICTURE_TYPE_IDR) {
836 sh->nal_unit_header.nal_unit_type = H264_NAL_IDR_SLICE;
837 sh->nal_unit_header.nal_ref_idc = 3;
838 } else {
839 sh->nal_unit_header.nal_unit_type = H264_NAL_SLICE;
840 sh->nal_unit_header.nal_ref_idc = pic->is_reference;
841 }
842
843 sh->first_mb_in_slice = slice->block_start;
844 sh->slice_type = hpic->slice_type;
845
846 sh->pic_parameter_set_id = pps->pic_parameter_set_id;
847
848 sh->frame_num = hpic->frame_num &
849 ((1 << (4 + sps->log2_max_frame_num_minus4)) - 1);
850 sh->idr_pic_id = hpic->idr_pic_id;
851 sh->pic_order_cnt_lsb = hpic->pic_order_cnt &
852 ((1 << (4 + sps->log2_max_pic_order_cnt_lsb_minus4)) - 1);
853
854 sh->direct_spatial_mv_pred_flag = 1;
855
856 if (pic->type == PICTURE_TYPE_B)
857 sh->slice_qp_delta = priv->fixed_qp_b - (pps->pic_init_qp_minus26 + 26);
858 else if (pic->type == PICTURE_TYPE_P)
859 sh->slice_qp_delta = priv->fixed_qp_p - (pps->pic_init_qp_minus26 + 26);
860 else
861 sh->slice_qp_delta = priv->fixed_qp_idr - (pps->pic_init_qp_minus26 + 26);
862
863 if (pic->is_reference && pic->type != PICTURE_TYPE_IDR) {
864 VAAPIEncodePicture *discard_list[MAX_DPB_SIZE];
865 int discard = 0, keep = 0;
866
867 // Discard everything which is in the DPB of the previous frame but
868 // not in the DPB of this one.
869 for (i = 0; i < prev->nb_dpb_pics; i++) {
870 for (j = 0; j < pic->nb_dpb_pics; j++) {
871 if (prev->dpb[i] == pic->dpb[j])
872 break;
873 }
874 if (j == pic->nb_dpb_pics) {
875 discard_list[discard] = prev->dpb[i];
876 ++discard;
877 } else {
878 ++keep;
879 }
880 }
881 av_assert0(keep <= priv->dpb_frames);
882
883 if (discard == 0) {
884 sh->adaptive_ref_pic_marking_mode_flag = 0;
885 } else {
886 sh->adaptive_ref_pic_marking_mode_flag = 1;
887 for (i = 0; i < discard; i++) {
888 VAAPIEncodeH264Picture *old = discard_list[i]->priv_data;
889 av_assert0(old->frame_num < hpic->frame_num);
890 sh->mmco[i].memory_management_control_operation = 1;
891 sh->mmco[i].difference_of_pic_nums_minus1 =
892 hpic->frame_num - old->frame_num - 1;
893 }
894 sh->mmco[i].memory_management_control_operation = 0;
895 }
896 }
897
898 // If the intended references are not the first entries of RefPicListN
899 // by default, use ref-pic-list-modification to move them there.
900 if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
901 VAAPIEncodePicture *def_l0[MAX_DPB_SIZE], *def_l1[MAX_DPB_SIZE];
902 VAAPIEncodeH264Picture *href;
903 int n;
904
905 vaapi_encode_h264_default_ref_pic_list(avctx, pic,
906 def_l0, def_l1, &n);
907
908 if (pic->type == PICTURE_TYPE_P) {
909 int need_rplm = 0;
910 for (i = 0; i < pic->nb_refs; i++) {
911 av_assert0(pic->refs[i]);
912 if (pic->refs[i] != def_l0[i])
913 need_rplm = 1;
914 }
915
916 sh->ref_pic_list_modification_flag_l0 = need_rplm;
917 if (need_rplm) {
918 int pic_num = hpic->frame_num;
919 for (i = 0; i < pic->nb_refs; i++) {
920 href = pic->refs[i]->priv_data;
921 av_assert0(href->frame_num != pic_num);
922 if (href->frame_num < pic_num) {
923 sh->rplm_l0[i].modification_of_pic_nums_idc = 0;
924 sh->rplm_l0[i].abs_diff_pic_num_minus1 =
925 pic_num - href->frame_num - 1;
926 } else {
927 sh->rplm_l0[i].modification_of_pic_nums_idc = 1;
928 sh->rplm_l0[i].abs_diff_pic_num_minus1 =
929 href->frame_num - pic_num - 1;
930 }
931 pic_num = href->frame_num;
932 }
933 sh->rplm_l0[i].modification_of_pic_nums_idc = 3;
934 }
935
936 } else {
937 int need_rplm_l0 = 0, need_rplm_l1 = 0;
938 int n0 = 0, n1 = 0;
939 for (i = 0; i < pic->nb_refs; i++) {
940 av_assert0(pic->refs[i]);
941 href = pic->refs[i]->priv_data;
942 av_assert0(href->pic_order_cnt != hpic->pic_order_cnt);
943 if (href->pic_order_cnt < hpic->pic_order_cnt) {
944 if (pic->refs[i] != def_l0[n0])
945 need_rplm_l0 = 1;
946 ++n0;
947 } else {
948 if (pic->refs[i] != def_l1[n1])
949 need_rplm_l1 = 1;
950 ++n1;
951 }
952 }
953
954 sh->ref_pic_list_modification_flag_l0 = need_rplm_l0;
955 if (need_rplm_l0) {
956 int pic_num = hpic->frame_num;
957 for (i = j = 0; i < pic->nb_refs; i++) {
958 href = pic->refs[i]->priv_data;
959 if (href->pic_order_cnt > hpic->pic_order_cnt)
960 continue;
961 av_assert0(href->frame_num != pic_num);
962 if (href->frame_num < pic_num) {
963 sh->rplm_l0[j].modification_of_pic_nums_idc = 0;
964 sh->rplm_l0[j].abs_diff_pic_num_minus1 =
965 pic_num - href->frame_num - 1;
966 } else {
967 sh->rplm_l0[j].modification_of_pic_nums_idc = 1;
968 sh->rplm_l0[j].abs_diff_pic_num_minus1 =
969 href->frame_num - pic_num - 1;
970 }
971 pic_num = href->frame_num;
972 ++j;
973 }
974 av_assert0(j == n0);
975 sh->rplm_l0[j].modification_of_pic_nums_idc = 3;
976 }
977
978 sh->ref_pic_list_modification_flag_l1 = need_rplm_l1;
979 if (need_rplm_l1) {
980 int pic_num = hpic->frame_num;
981 for (i = j = 0; i < pic->nb_refs; i++) {
982 href = pic->refs[i]->priv_data;
983 if (href->pic_order_cnt < hpic->pic_order_cnt)
984 continue;
985 av_assert0(href->frame_num != pic_num);
986 if (href->frame_num < pic_num) {
987 sh->rplm_l1[j].modification_of_pic_nums_idc = 0;
988 sh->rplm_l1[j].abs_diff_pic_num_minus1 =
989 pic_num - href->frame_num - 1;
990 } else {
991 sh->rplm_l1[j].modification_of_pic_nums_idc = 1;
992 sh->rplm_l1[j].abs_diff_pic_num_minus1 =
993 href->frame_num - pic_num - 1;
994 }
995 pic_num = href->frame_num;
996 ++j;
997 }
998 av_assert0(j == n1);
999 sh->rplm_l1[j].modification_of_pic_nums_idc = 3;
1000 }
1001 }
1002 }
1003
1004 vslice->macroblock_address = slice->block_start;
1005 vslice->num_macroblocks = slice->block_size;
1006
1007 vslice->macroblock_info = VA_INVALID_ID;
1008
1009 vslice->slice_type = sh->slice_type % 5;
1010 vslice->pic_parameter_set_id = sh->pic_parameter_set_id;
1011 vslice->idr_pic_id = sh->idr_pic_id;
1012
1013 vslice->pic_order_cnt_lsb = sh->pic_order_cnt_lsb;
1014
1015 vslice->direct_spatial_mv_pred_flag = sh->direct_spatial_mv_pred_flag;
1016
1017 for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1018 vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1019 vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1020 vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1021 vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1022 }
1023
1024 av_assert0(pic->nb_refs <= 2);
1025 if (pic->nb_refs >= 1) {
1026 // Backward reference for P- or B-frame.
1027 av_assert0(pic->type == PICTURE_TYPE_P ||
1028 pic->type == PICTURE_TYPE_B);
1029 vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1030 }
1031 if (pic->nb_refs >= 2) {
1032 // Forward reference for B-frame.
1033 av_assert0(pic->type == PICTURE_TYPE_B);
1034 vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1035 }
1036
1037 vslice->slice_qp_delta = sh->slice_qp_delta;
1038
1039 return 0;
1040 }
1041
vaapi_encode_h264_configure(AVCodecContext *avctx)1042 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
1043 {
1044 VAAPIEncodeContext *ctx = avctx->priv_data;
1045 VAAPIEncodeH264Context *priv = avctx->priv_data;
1046 int err;
1047
1048 err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_H264, avctx);
1049 if (err < 0)
1050 return err;
1051
1052 priv->mb_width = FFALIGN(avctx->width, 16) / 16;
1053 priv->mb_height = FFALIGN(avctx->height, 16) / 16;
1054
1055 if (ctx->va_rc_mode == VA_RC_CQP) {
1056 priv->fixed_qp_p = av_clip(ctx->rc_quality, 1, 51);
1057 if (avctx->i_quant_factor > 0.0)
1058 priv->fixed_qp_idr =
1059 av_clip((avctx->i_quant_factor * priv->fixed_qp_p +
1060 avctx->i_quant_offset) + 0.5, 1, 51);
1061 else
1062 priv->fixed_qp_idr = priv->fixed_qp_p;
1063 if (avctx->b_quant_factor > 0.0)
1064 priv->fixed_qp_b =
1065 av_clip((avctx->b_quant_factor * priv->fixed_qp_p +
1066 avctx->b_quant_offset) + 0.5, 1, 51);
1067 else
1068 priv->fixed_qp_b = priv->fixed_qp_p;
1069
1070 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1071 "%d / %d / %d for IDR- / P- / B-frames.\n",
1072 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1073
1074 } else {
1075 // These still need to be set for pic_init_qp/slice_qp_delta.
1076 priv->fixed_qp_idr = 26;
1077 priv->fixed_qp_p = 26;
1078 priv->fixed_qp_b = 26;
1079 }
1080
1081 if (!ctx->rc_mode->hrd) {
1082 // Timing SEI requires a mode respecting HRD parameters.
1083 priv->sei &= ~SEI_TIMING;
1084 }
1085
1086 if (priv->sei & SEI_IDENTIFIER) {
1087 const char *lavc = LIBAVCODEC_IDENT;
1088 const char *vaapi = VA_VERSION_S;
1089 const char *driver;
1090 int len;
1091
1092 memcpy(priv->sei_identifier.uuid_iso_iec_11578,
1093 vaapi_encode_h264_sei_identifier_uuid,
1094 sizeof(priv->sei_identifier.uuid_iso_iec_11578));
1095
1096 driver = vaQueryVendorString(ctx->hwctx->display);
1097 if (!driver)
1098 driver = "unknown driver";
1099
1100 len = snprintf(NULL, 0, "%s / VAAPI %s / %s", lavc, vaapi, driver);
1101 if (len >= 0) {
1102 priv->sei_identifier_string = av_malloc(len + 1);
1103 if (!priv->sei_identifier_string)
1104 return AVERROR(ENOMEM);
1105
1106 snprintf(priv->sei_identifier_string, len + 1,
1107 "%s / VAAPI %s / %s", lavc, vaapi, driver);
1108
1109 priv->sei_identifier.data = priv->sei_identifier_string;
1110 priv->sei_identifier.data_length = len + 1;
1111 }
1112 }
1113
1114 ctx->roi_quant_range = 51 + 6 * (ctx->profile->depth - 8);
1115
1116 return 0;
1117 }
1118
1119 static const VAAPIEncodeProfile vaapi_encode_h264_profiles[] = {
1120 { FF_PROFILE_H264_HIGH, 8, 3, 1, 1, VAProfileH264High },
1121 { FF_PROFILE_H264_MAIN, 8, 3, 1, 1, VAProfileH264Main },
1122 { FF_PROFILE_H264_CONSTRAINED_BASELINE,
1123 8, 3, 1, 1, VAProfileH264ConstrainedBaseline },
1124 { FF_PROFILE_UNKNOWN }
1125 };
1126
1127 static const VAAPIEncodeType vaapi_encode_type_h264 = {
1128 .profiles = vaapi_encode_h264_profiles,
1129
1130 .flags = FLAG_SLICE_CONTROL |
1131 FLAG_B_PICTURES |
1132 FLAG_B_PICTURE_REFERENCES |
1133 FLAG_NON_IDR_KEY_PICTURES,
1134
1135 .default_quality = 20,
1136
1137 .configure = &vaapi_encode_h264_configure,
1138
1139 .picture_priv_data_size = sizeof(VAAPIEncodeH264Picture),
1140
1141 .sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
1142 .init_sequence_params = &vaapi_encode_h264_init_sequence_params,
1143
1144 .picture_params_size = sizeof(VAEncPictureParameterBufferH264),
1145 .init_picture_params = &vaapi_encode_h264_init_picture_params,
1146
1147 .slice_params_size = sizeof(VAEncSliceParameterBufferH264),
1148 .init_slice_params = &vaapi_encode_h264_init_slice_params,
1149
1150 .sequence_header_type = VAEncPackedHeaderSequence,
1151 .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1152
1153 .slice_header_type = VAEncPackedHeaderH264_Slice,
1154 .write_slice_header = &vaapi_encode_h264_write_slice_header,
1155
1156 .write_extra_header = &vaapi_encode_h264_write_extra_header,
1157 };
1158
vaapi_encode_h264_init(AVCodecContext *avctx)1159 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
1160 {
1161 VAAPIEncodeContext *ctx = avctx->priv_data;
1162 VAAPIEncodeH264Context *priv = avctx->priv_data;
1163
1164 ctx->codec = &vaapi_encode_type_h264;
1165
1166 if (avctx->profile == FF_PROFILE_UNKNOWN)
1167 avctx->profile = priv->profile;
1168 if (avctx->level == FF_LEVEL_UNKNOWN)
1169 avctx->level = priv->level;
1170 if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
1171 avctx->compression_level = priv->quality;
1172
1173 // Reject unsupported profiles.
1174 switch (avctx->profile) {
1175 case FF_PROFILE_H264_BASELINE:
1176 av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile is not "
1177 "supported, using constrained baseline profile instead.\n");
1178 avctx->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
1179 break;
1180 case FF_PROFILE_H264_EXTENDED:
1181 av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1182 "is not supported.\n");
1183 return AVERROR_PATCHWELCOME;
1184 case FF_PROFILE_H264_HIGH_10:
1185 case FF_PROFILE_H264_HIGH_10_INTRA:
1186 av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1187 "are not supported.\n");
1188 return AVERROR_PATCHWELCOME;
1189 case FF_PROFILE_H264_HIGH_422:
1190 case FF_PROFILE_H264_HIGH_422_INTRA:
1191 case FF_PROFILE_H264_HIGH_444:
1192 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1193 case FF_PROFILE_H264_HIGH_444_INTRA:
1194 case FF_PROFILE_H264_CAVLC_444:
1195 av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1196 "are not supported.\n");
1197 return AVERROR_PATCHWELCOME;
1198 }
1199
1200 if (avctx->level != FF_LEVEL_UNKNOWN && avctx->level & ~0xff) {
1201 av_log(avctx, AV_LOG_ERROR, "Invalid level %d: must fit "
1202 "in 8-bit unsigned integer.\n", avctx->level);
1203 return AVERROR(EINVAL);
1204 }
1205
1206 ctx->desired_packed_headers =
1207 VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
1208 VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
1209 VA_ENC_PACKED_HEADER_MISC; // SEI.
1210
1211 ctx->surface_width = FFALIGN(avctx->width, 16);
1212 ctx->surface_height = FFALIGN(avctx->height, 16);
1213
1214 ctx->slice_block_height = ctx->slice_block_width = 16;
1215
1216 if (priv->qp > 0)
1217 ctx->explicit_qp = priv->qp;
1218
1219 return ff_vaapi_encode_init(avctx);
1220 }
1221
vaapi_encode_h264_close(AVCodecContext *avctx)1222 static av_cold int vaapi_encode_h264_close(AVCodecContext *avctx)
1223 {
1224 VAAPIEncodeH264Context *priv = avctx->priv_data;
1225
1226 ff_cbs_fragment_free(&priv->current_access_unit);
1227 ff_cbs_close(&priv->cbc);
1228 av_freep(&priv->sei_identifier_string);
1229
1230 return ff_vaapi_encode_close(avctx);
1231 }
1232
1233 #define OFFSET(x) offsetof(VAAPIEncodeH264Context, x)
1234 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1235 static const AVOption vaapi_encode_h264_options[] = {
1236 VAAPI_ENCODE_COMMON_OPTIONS,
1237 VAAPI_ENCODE_RC_OPTIONS,
1238
1239 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1240 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, FLAGS },
1241 { "quality", "Set encode quality (trades off against speed, higher is faster)",
1242 OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
1243 { "coder", "Entropy coder type",
1244 OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
1245 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1246 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1247 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1248 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1249
1250 { "aud", "Include AUD",
1251 OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
1252
1253 { "sei", "Set SEI to include",
1254 OFFSET(sei), AV_OPT_TYPE_FLAGS,
1255 { .i64 = SEI_IDENTIFIER | SEI_TIMING | SEI_RECOVERY_POINT },
1256 0, INT_MAX, FLAGS, "sei" },
1257 { "identifier", "Include encoder version identifier",
1258 0, AV_OPT_TYPE_CONST, { .i64 = SEI_IDENTIFIER },
1259 INT_MIN, INT_MAX, FLAGS, "sei" },
1260 { "timing", "Include timing parameters (buffering_period and pic_timing)",
1261 0, AV_OPT_TYPE_CONST, { .i64 = SEI_TIMING },
1262 INT_MIN, INT_MAX, FLAGS, "sei" },
1263 { "recovery_point", "Include recovery points where appropriate",
1264 0, AV_OPT_TYPE_CONST, { .i64 = SEI_RECOVERY_POINT },
1265 INT_MIN, INT_MAX, FLAGS, "sei" },
1266
1267 { "profile", "Set profile (profile_idc and constraint_set*_flag)",
1268 OFFSET(profile), AV_OPT_TYPE_INT,
1269 { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, FLAGS, "profile" },
1270
1271 #define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1272 { .i64 = value }, 0, 0, FLAGS, "profile"
1273 { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
1274 { PROFILE("main", FF_PROFILE_H264_MAIN) },
1275 { PROFILE("high", FF_PROFILE_H264_HIGH) },
1276 #undef PROFILE
1277
1278 { "level", "Set level (level_idc)",
1279 OFFSET(level), AV_OPT_TYPE_INT,
1280 { .i64 = FF_LEVEL_UNKNOWN }, FF_LEVEL_UNKNOWN, 0xff, FLAGS, "level" },
1281
1282 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
1283 { .i64 = value }, 0, 0, FLAGS, "level"
1284 { LEVEL("1", 10) },
1285 { LEVEL("1.1", 11) },
1286 { LEVEL("1.2", 12) },
1287 { LEVEL("1.3", 13) },
1288 { LEVEL("2", 20) },
1289 { LEVEL("2.1", 21) },
1290 { LEVEL("2.2", 22) },
1291 { LEVEL("3", 30) },
1292 { LEVEL("3.1", 31) },
1293 { LEVEL("3.2", 32) },
1294 { LEVEL("4", 40) },
1295 { LEVEL("4.1", 41) },
1296 { LEVEL("4.2", 42) },
1297 { LEVEL("5", 50) },
1298 { LEVEL("5.1", 51) },
1299 { LEVEL("5.2", 52) },
1300 { LEVEL("6", 60) },
1301 { LEVEL("6.1", 61) },
1302 { LEVEL("6.2", 62) },
1303 #undef LEVEL
1304
1305 { NULL },
1306 };
1307
1308 static const FFCodecDefault vaapi_encode_h264_defaults[] = {
1309 { "b", "0" },
1310 { "bf", "2" },
1311 { "g", "120" },
1312 { "i_qfactor", "1" },
1313 { "i_qoffset", "0" },
1314 { "b_qfactor", "6/5" },
1315 { "b_qoffset", "0" },
1316 { "qmin", "-1" },
1317 { "qmax", "-1" },
1318 { NULL },
1319 };
1320
1321 static const AVClass vaapi_encode_h264_class = {
1322 .class_name = "h264_vaapi",
1323 .item_name = av_default_item_name,
1324 .option = vaapi_encode_h264_options,
1325 .version = LIBAVUTIL_VERSION_INT,
1326 };
1327
1328 const FFCodec ff_h264_vaapi_encoder = {
1329 .p.name = "h264_vaapi",
1330 .p.long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1331 .p.type = AVMEDIA_TYPE_VIDEO,
1332 .p.id = AV_CODEC_ID_H264,
1333 .priv_data_size = sizeof(VAAPIEncodeH264Context),
1334 .init = &vaapi_encode_h264_init,
1335 FF_CODEC_RECEIVE_PACKET_CB(&ff_vaapi_encode_receive_packet),
1336 .close = &vaapi_encode_h264_close,
1337 .p.priv_class = &vaapi_encode_h264_class,
1338 .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
1339 AV_CODEC_CAP_DR1,
1340 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1341 .defaults = vaapi_encode_h264_defaults,
1342 .p.pix_fmts = (const enum AVPixelFormat[]) {
1343 AV_PIX_FMT_VAAPI,
1344 AV_PIX_FMT_NONE,
1345 },
1346 .hw_configs = ff_vaapi_encode_hw_configs,
1347 .p.wrapper_name = "vaapi",
1348 };
1349