FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vaapi_encode_mpeg2.c
Date: 2021-09-16 08:47:15
Exec Total Coverage
Lines: 0 323 0.0%
Branches: 0 89 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 <va/va.h>
20 #include <va/va_enc_mpeg2.h>
21
22 #include "libavutil/avassert.h"
23
24 #include "avcodec.h"
25 #include "cbs.h"
26 #include "cbs_mpeg2.h"
27 #include "mpeg12.h"
28 #include "vaapi_encode.h"
29
30 typedef struct VAAPIEncodeMPEG2Context {
31 VAAPIEncodeContext common;
32
33 // User options.
34 int profile;
35 int level;
36
37 // Derived settings.
38 int quant_i;
39 int quant_p;
40 int quant_b;
41
42 unsigned int bit_rate;
43 unsigned int vbv_buffer_size;
44
45 AVRational frame_rate;
46
47 unsigned int f_code_horizontal;
48 unsigned int f_code_vertical;
49
50 // Stream state.
51 int64_t last_i_frame;
52
53 // Writer structures.
54 MPEG2RawSequenceHeader sequence_header;
55 MPEG2RawExtensionData sequence_extension;
56 MPEG2RawExtensionData sequence_display_extension;
57 MPEG2RawGroupOfPicturesHeader gop_header;
58 MPEG2RawPictureHeader picture_header;
59 MPEG2RawExtensionData picture_coding_extension;
60
61 CodedBitstreamContext *cbc;
62 CodedBitstreamFragment current_fragment;
63 } VAAPIEncodeMPEG2Context;
64
65
66 static int vaapi_encode_mpeg2_write_fragment(AVCodecContext *avctx,
67 char *data, size_t *data_len,
68 CodedBitstreamFragment *frag)
69 {
70 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
71 int err;
72
73 err = ff_cbs_write_fragment_data(priv->cbc, frag);
74 if (err < 0) {
75 av_log(avctx, AV_LOG_ERROR, "Failed to write packed header.\n");
76 return err;
77 }
78
79 if (*data_len < 8 * frag->data_size - frag->data_bit_padding) {
80 av_log(avctx, AV_LOG_ERROR, "Access unit too large: "
81 "%zu < %zu.\n", *data_len,
82 8 * frag->data_size - frag->data_bit_padding);
83 return AVERROR(ENOSPC);
84 }
85
86 memcpy(data, frag->data, frag->data_size);
87 *data_len = 8 * frag->data_size - frag->data_bit_padding;
88
89 return 0;
90 }
91
92 static int vaapi_encode_mpeg2_add_header(AVCodecContext *avctx,
93 CodedBitstreamFragment *frag,
94 int type, void *header)
95 {
96 int err;
97
98 err = ff_cbs_insert_unit_content(frag, -1, type, header, NULL);
99 if (err < 0) {
100 av_log(avctx, AV_LOG_ERROR, "Failed to add header: "
101 "type = %d.\n", type);
102 return err;
103 }
104
105 return 0;
106 }
107
108 static int vaapi_encode_mpeg2_write_sequence_header(AVCodecContext *avctx,
109 char *data, size_t *data_len)
110 {
111 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
112 CodedBitstreamFragment *frag = &priv->current_fragment;
113 int err;
114
115 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_SEQUENCE_HEADER,
116 &priv->sequence_header);
117 if (err < 0)
118 goto fail;
119
120 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
121 &priv->sequence_extension);
122 if (err < 0)
123 goto fail;
124
125 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
126 &priv->sequence_display_extension);
127 if (err < 0)
128 goto fail;
129
130 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_GROUP,
131 &priv->gop_header);
132 if (err < 0)
133 goto fail;
134
135 err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
136 fail:
137 ff_cbs_fragment_reset(frag);
138 return 0;
139 }
140
141 static int vaapi_encode_mpeg2_write_picture_header(AVCodecContext *avctx,
142 VAAPIEncodePicture *pic,
143 char *data, size_t *data_len)
144 {
145 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
146 CodedBitstreamFragment *frag = &priv->current_fragment;
147 int err;
148
149 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_PICTURE,
150 &priv->picture_header);
151 if (err < 0)
152 goto fail;
153
154 err = vaapi_encode_mpeg2_add_header(avctx, frag, MPEG2_START_EXTENSION,
155 &priv->picture_coding_extension);
156 if (err < 0)
157 goto fail;
158
159 err = vaapi_encode_mpeg2_write_fragment(avctx, data, data_len, frag);
160 fail:
161 ff_cbs_fragment_reset(frag);
162 return 0;
163 }
164
165 static int vaapi_encode_mpeg2_init_sequence_params(AVCodecContext *avctx)
166 {
167 VAAPIEncodeContext *ctx = avctx->priv_data;
168 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
169 MPEG2RawSequenceHeader *sh = &priv->sequence_header;
170 MPEG2RawSequenceExtension *se = &priv->sequence_extension.data.sequence;
171 MPEG2RawSequenceDisplayExtension *sde = &priv->sequence_display_extension.data.sequence_display;
172 MPEG2RawGroupOfPicturesHeader *goph = &priv->gop_header;
173 MPEG2RawPictureHeader *ph = &priv->picture_header;
174 MPEG2RawPictureCodingExtension *pce = &priv->picture_coding_extension.data.picture_coding;
175 VAEncSequenceParameterBufferMPEG2 *vseq = ctx->codec_sequence_params;
176 VAEncPictureParameterBufferMPEG2 *vpic = ctx->codec_picture_params;
177 int code, ext_n, ext_d;
178
179 memset(sh, 0, sizeof(*sh));
180 memset(se, 0, sizeof(*se));
181 memset(sde, 0, sizeof(*sde));
182 memset(goph, 0, sizeof(*goph));
183 memset(ph, 0, sizeof(*ph));
184 memset(pce, 0, sizeof(*pce));
185
186
187 if (ctx->va_bit_rate > 0) {
188 priv->bit_rate = (ctx->va_bit_rate + 399) / 400;
189 } else {
190 // Unknown (not a bitrate-targetting mode), so just use the
191 // highest value.
192 priv->bit_rate = 0x3fffffff;
193 }
194 if (avctx->rc_buffer_size > 0) {
195 priv->vbv_buffer_size = (avctx->rc_buffer_size + (1 << 14) - 1) >> 14;
196 } else {
197 // Unknown, so guess a value from the bitrate.
198 priv->vbv_buffer_size = priv->bit_rate >> 14;
199 }
200
201 switch (avctx->level) {
202 case 4: // High.
203 case 6: // High 1440.
204 priv->f_code_horizontal = 9;
205 priv->f_code_vertical = 5;
206 break;
207 case 8: // Main.
208 priv->f_code_horizontal = 8;
209 priv->f_code_vertical = 5;
210 break;
211 case 10: // Low.
212 default:
213 priv->f_code_horizontal = 7;
214 priv->f_code_vertical = 4;
215 break;
216 }
217
218
219 // Sequence header
220
221 sh->sequence_header_code = MPEG2_START_SEQUENCE_HEADER;
222
223 sh->horizontal_size_value = avctx->width & 0xfff;
224 sh->vertical_size_value = avctx->height & 0xfff;
225
226 if (avctx->sample_aspect_ratio.num != 0 &&
227 avctx->sample_aspect_ratio.den != 0) {
228 AVRational dar = av_div_q(avctx->sample_aspect_ratio,
229 (AVRational) { avctx->width, avctx->height });
230
231 if (av_cmp_q(avctx->sample_aspect_ratio, (AVRational) { 1, 1 }) == 0) {
232 sh->aspect_ratio_information = 1;
233 } else if (av_cmp_q(dar, (AVRational) { 3, 4 }) == 0) {
234 sh->aspect_ratio_information = 2;
235 } else if (av_cmp_q(dar, (AVRational) { 9, 16 }) == 0) {
236 sh->aspect_ratio_information = 3;
237 } else if (av_cmp_q(dar, (AVRational) { 100, 221 }) == 0) {
238 sh->aspect_ratio_information = 4;
239 } else {
240 av_log(avctx, AV_LOG_WARNING, "Sample aspect ratio %d:%d is not "
241 "representable, signalling square pixels instead.\n",
242 avctx->sample_aspect_ratio.num,
243 avctx->sample_aspect_ratio.den);
244 sh->aspect_ratio_information = 1;
245 }
246 } else {
247 // Unknown - assume square pixels.
248 sh->aspect_ratio_information = 1;
249 }
250
251 if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
252 priv->frame_rate = avctx->framerate;
253 else
254 priv->frame_rate = av_inv_q(avctx->time_base);
255 ff_mpeg12_find_best_frame_rate(priv->frame_rate,
256 &code, &ext_n, &ext_d, 0);
257 sh->frame_rate_code = code;
258
259 sh->bit_rate_value = priv->bit_rate & 0x3ffff;
260 sh->vbv_buffer_size_value = priv->vbv_buffer_size & 0x3ff;
261
262 sh->constrained_parameters_flag = 0;
263 sh->load_intra_quantiser_matrix = 0;
264 sh->load_non_intra_quantiser_matrix = 0;
265
266
267 // Sequence extension
268
269 priv->sequence_extension.extension_start_code = MPEG2_START_EXTENSION;
270 priv->sequence_extension.extension_start_code_identifier =
271 MPEG2_EXTENSION_SEQUENCE;
272
273 se->profile_and_level_indication = avctx->profile << 4 | avctx->level;
274 se->progressive_sequence = 1;
275 se->chroma_format = 1;
276
277 se->horizontal_size_extension = avctx->width >> 12;
278 se->vertical_size_extension = avctx->height >> 12;
279
280 se->bit_rate_extension = priv->bit_rate >> 18;
281 se->vbv_buffer_size_extension = priv->vbv_buffer_size >> 10;
282 se->low_delay = ctx->b_per_p == 0;
283
284 se->frame_rate_extension_n = ext_n;
285 se->frame_rate_extension_d = ext_d;
286
287
288 // Sequence display extension
289
290 priv->sequence_display_extension.extension_start_code =
291 MPEG2_START_EXTENSION;
292 priv->sequence_display_extension.extension_start_code_identifier =
293 MPEG2_EXTENSION_SEQUENCE_DISPLAY;
294
295 // Unspecified video format, from table 6-6.
296 sde->video_format = 5;
297
298 sde->colour_primaries = avctx->color_primaries;
299 sde->transfer_characteristics = avctx->color_trc;
300 sde->matrix_coefficients = avctx->colorspace;
301 sde->colour_description =
302 avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
303 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
304 avctx->colorspace != AVCOL_SPC_UNSPECIFIED;
305
306 sde->display_horizontal_size = avctx->width;
307 sde->display_vertical_size = avctx->height;
308
309
310 // GOP header
311
312 goph->group_start_code = MPEG2_START_GROUP;
313
314 // Marker bit in the middle of time_code.
315 goph->time_code = 1 << 12;
316 goph->closed_gop = 1;
317 goph->broken_link = 0;
318
319
320 // Defaults for picture header
321
322 ph->picture_start_code = MPEG2_START_PICTURE;
323
324 ph->vbv_delay = 0xffff; // Not currently calculated.
325
326 ph->full_pel_forward_vector = 0;
327 ph->forward_f_code = 7;
328 ph->full_pel_backward_vector = 0;
329 ph->forward_f_code = 7;
330
331
332 // Defaults for picture coding extension
333
334 priv->picture_coding_extension.extension_start_code =
335 MPEG2_START_EXTENSION;
336 priv->picture_coding_extension.extension_start_code_identifier =
337 MPEG2_EXTENSION_PICTURE_CODING;
338
339 pce->intra_dc_precision = 0;
340 pce->picture_structure = 3;
341 pce->top_field_first = 0;
342 pce->frame_pred_frame_dct = 1;
343 pce->concealment_motion_vectors = 0;
344 pce->q_scale_type = 0;
345 pce->intra_vlc_format = 0;
346 pce->alternate_scan = 0;
347 pce->repeat_first_field = 0;
348 pce->progressive_frame = 1;
349 pce->composite_display_flag = 0;
350
351
352
353 *vseq = (VAEncSequenceParameterBufferMPEG2) {
354 .intra_period = ctx->gop_size,
355 .ip_period = ctx->b_per_p + 1,
356
357 .picture_width = avctx->width,
358 .picture_height = avctx->height,
359
360 .bits_per_second = ctx->va_bit_rate,
361 .frame_rate = av_q2d(priv->frame_rate),
362 .aspect_ratio_information = sh->aspect_ratio_information,
363 .vbv_buffer_size = priv->vbv_buffer_size,
364
365 .sequence_extension.bits = {
366 .profile_and_level_indication = se->profile_and_level_indication,
367 .progressive_sequence = se->progressive_sequence,
368 .chroma_format = se->chroma_format,
369 .low_delay = se->low_delay,
370 .frame_rate_extension_n = se->frame_rate_extension_n,
371 .frame_rate_extension_d = se->frame_rate_extension_d,
372 },
373
374 .new_gop_header = 1,
375 .gop_header.bits = {
376 .time_code = goph->time_code,
377 .closed_gop = goph->closed_gop,
378 .broken_link = goph->broken_link,
379 },
380 };
381
382 *vpic = (VAEncPictureParameterBufferMPEG2) {
383 .forward_reference_picture = VA_INVALID_ID,
384 .backward_reference_picture = VA_INVALID_ID,
385 .reconstructed_picture = VA_INVALID_ID,
386 .coded_buf = VA_INVALID_ID,
387
388 .vbv_delay = 0xffff,
389 .f_code = { { 15, 15 }, { 15, 15 } },
390
391 .picture_coding_extension.bits = {
392 .intra_dc_precision = pce->intra_dc_precision,
393 .picture_structure = pce->picture_structure,
394 .top_field_first = pce->top_field_first,
395 .frame_pred_frame_dct = pce->frame_pred_frame_dct,
396 .concealment_motion_vectors = pce->concealment_motion_vectors,
397 .q_scale_type = pce->q_scale_type,
398 .intra_vlc_format = pce->intra_vlc_format,
399 .alternate_scan = pce->alternate_scan,
400 .repeat_first_field = pce->repeat_first_field,
401 .progressive_frame = pce->progressive_frame,
402 .composite_display_flag = pce->composite_display_flag,
403 },
404
405 .composite_display.bits = {
406 .v_axis = pce->v_axis,
407 .field_sequence = pce->field_sequence,
408 .sub_carrier = pce->sub_carrier,
409 .burst_amplitude = pce->burst_amplitude,
410 .sub_carrier_phase = pce->sub_carrier_phase,
411 },
412 };
413
414 return 0;
415 }
416
417 static int vaapi_encode_mpeg2_init_picture_params(AVCodecContext *avctx,
418 VAAPIEncodePicture *pic)
419 {
420 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
421 MPEG2RawPictureHeader *ph = &priv->picture_header;
422 MPEG2RawPictureCodingExtension *pce = &priv->picture_coding_extension.data.picture_coding;
423 VAEncPictureParameterBufferMPEG2 *vpic = pic->codec_picture_params;
424
425 if (pic->type == PICTURE_TYPE_IDR || pic->type == PICTURE_TYPE_I) {
426 ph->temporal_reference = 0;
427 ph->picture_coding_type = 1;
428 priv->last_i_frame = pic->display_order;
429 } else {
430 ph->temporal_reference = pic->display_order - priv->last_i_frame;
431 ph->picture_coding_type = pic->type == PICTURE_TYPE_B ? 3 : 2;
432 }
433
434 if (pic->type == PICTURE_TYPE_P || pic->type == PICTURE_TYPE_B) {
435 pce->f_code[0][0] = priv->f_code_horizontal;
436 pce->f_code[0][1] = priv->f_code_vertical;
437 } else {
438 pce->f_code[0][0] = 15;
439 pce->f_code[0][1] = 15;
440 }
441 if (pic->type == PICTURE_TYPE_B) {
442 pce->f_code[1][0] = priv->f_code_horizontal;
443 pce->f_code[1][1] = priv->f_code_vertical;
444 } else {
445 pce->f_code[1][0] = 15;
446 pce->f_code[1][1] = 15;
447 }
448
449 vpic->reconstructed_picture = pic->recon_surface;
450 vpic->coded_buf = pic->output_buffer;
451
452 switch (pic->type) {
453 case PICTURE_TYPE_IDR:
454 case PICTURE_TYPE_I:
455 vpic->picture_type = VAEncPictureTypeIntra;
456 break;
457 case PICTURE_TYPE_P:
458 vpic->picture_type = VAEncPictureTypePredictive;
459 vpic->forward_reference_picture = pic->refs[0]->recon_surface;
460 break;
461 case PICTURE_TYPE_B:
462 vpic->picture_type = VAEncPictureTypeBidirectional;
463 vpic->forward_reference_picture = pic->refs[0]->recon_surface;
464 vpic->backward_reference_picture = pic->refs[1]->recon_surface;
465 break;
466 default:
467 av_assert0(0 && "invalid picture type");
468 }
469
470 vpic->temporal_reference = ph->temporal_reference;
471 vpic->f_code[0][0] = pce->f_code[0][0];
472 vpic->f_code[0][1] = pce->f_code[0][1];
473 vpic->f_code[1][0] = pce->f_code[1][0];
474 vpic->f_code[1][1] = pce->f_code[1][1];
475
476 return 0;
477 }
478
479 static int vaapi_encode_mpeg2_init_slice_params(AVCodecContext *avctx,
480 VAAPIEncodePicture *pic,
481 VAAPIEncodeSlice *slice)
482 {
483 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
484 VAEncSliceParameterBufferMPEG2 *vslice = slice->codec_slice_params;
485 int qp;
486
487 vslice->macroblock_address = slice->block_start;
488 vslice->num_macroblocks = slice->block_size;
489
490 switch (pic->type) {
491 case PICTURE_TYPE_IDR:
492 case PICTURE_TYPE_I:
493 qp = priv->quant_i;
494 break;
495 case PICTURE_TYPE_P:
496 qp = priv->quant_p;
497 break;
498 case PICTURE_TYPE_B:
499 qp = priv->quant_b;
500 break;
501 default:
502 av_assert0(0 && "invalid picture type");
503 }
504
505 vslice->quantiser_scale_code = qp;
506 vslice->is_intra_slice = (pic->type == PICTURE_TYPE_IDR ||
507 pic->type == PICTURE_TYPE_I);
508
509 return 0;
510 }
511
512 static av_cold int vaapi_encode_mpeg2_configure(AVCodecContext *avctx)
513 {
514 VAAPIEncodeContext *ctx = avctx->priv_data;
515 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
516 int err;
517
518 err = ff_cbs_init(&priv->cbc, AV_CODEC_ID_MPEG2VIDEO, avctx);
519 if (err < 0)
520 return err;
521
522 if (ctx->va_rc_mode == VA_RC_CQP) {
523 priv->quant_p = av_clip(ctx->rc_quality, 1, 31);
524 if (avctx->i_quant_factor > 0.0)
525 priv->quant_i =
526 av_clip((avctx->i_quant_factor * priv->quant_p +
527 avctx->i_quant_offset) + 0.5, 1, 31);
528 else
529 priv->quant_i = priv->quant_p;
530 if (avctx->b_quant_factor > 0.0)
531 priv->quant_b =
532 av_clip((avctx->b_quant_factor * priv->quant_p +
533 avctx->b_quant_offset) + 0.5, 1, 31);
534 else
535 priv->quant_b = priv->quant_p;
536
537 av_log(avctx, AV_LOG_DEBUG, "Using fixed quantiser "
538 "%d / %d / %d for I- / P- / B-frames.\n",
539 priv->quant_i, priv->quant_p, priv->quant_b);
540
541 } else {
542 priv->quant_i = 16;
543 priv->quant_p = 16;
544 priv->quant_b = 16;
545 }
546
547 ctx->slice_block_rows = FFALIGN(avctx->height, 16) / 16;
548 ctx->slice_block_cols = FFALIGN(avctx->width, 16) / 16;
549
550 ctx->nb_slices = ctx->slice_block_rows;
551 ctx->slice_size = 1;
552
553 ctx->roi_quant_range = 31;
554
555 return 0;
556 }
557
558 static const VAAPIEncodeProfile vaapi_encode_mpeg2_profiles[] = {
559 { FF_PROFILE_MPEG2_MAIN, 8, 3, 1, 1, VAProfileMPEG2Main },
560 { FF_PROFILE_MPEG2_SIMPLE, 8, 3, 1, 1, VAProfileMPEG2Simple },
561 { FF_PROFILE_UNKNOWN }
562 };
563
564 static const VAAPIEncodeType vaapi_encode_type_mpeg2 = {
565 .profiles = vaapi_encode_mpeg2_profiles,
566
567 .flags = FLAG_B_PICTURES,
568
569 .configure = &vaapi_encode_mpeg2_configure,
570
571 .default_quality = 10,
572
573 .sequence_params_size = sizeof(VAEncSequenceParameterBufferMPEG2),
574 .init_sequence_params = &vaapi_encode_mpeg2_init_sequence_params,
575
576 .picture_params_size = sizeof(VAEncPictureParameterBufferMPEG2),
577 .init_picture_params = &vaapi_encode_mpeg2_init_picture_params,
578
579 .slice_params_size = sizeof(VAEncSliceParameterBufferMPEG2),
580 .init_slice_params = &vaapi_encode_mpeg2_init_slice_params,
581
582 .sequence_header_type = VAEncPackedHeaderSequence,
583 .write_sequence_header = &vaapi_encode_mpeg2_write_sequence_header,
584
585 .picture_header_type = VAEncPackedHeaderPicture,
586 .write_picture_header = &vaapi_encode_mpeg2_write_picture_header,
587 };
588
589 static av_cold int vaapi_encode_mpeg2_init(AVCodecContext *avctx)
590 {
591 VAAPIEncodeContext *ctx = avctx->priv_data;
592 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
593
594 ctx->codec = &vaapi_encode_type_mpeg2;
595
596 if (avctx->profile == FF_PROFILE_UNKNOWN)
597 avctx->profile = priv->profile;
598 if (avctx->level == FF_LEVEL_UNKNOWN)
599 avctx->level = priv->level;
600
601 // Reject unknown levels (these are required to set f_code for
602 // motion vector encoding).
603 switch (avctx->level) {
604 case 4: // High
605 case 6: // High 1440
606 case 8: // Main
607 case 10: // Low
608 break;
609 default:
610 av_log(avctx, AV_LOG_ERROR, "Unknown MPEG-2 level %d.\n",
611 avctx->level);
612 return AVERROR(EINVAL);
613 }
614
615 if (avctx->height % 4096 == 0 || avctx->width % 4096 == 0) {
616 av_log(avctx, AV_LOG_ERROR, "MPEG-2 does not support picture "
617 "height or width divisible by 4096.\n");
618 return AVERROR(EINVAL);
619 }
620
621 ctx->desired_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE |
622 VA_ENC_PACKED_HEADER_PICTURE;
623
624 ctx->surface_width = FFALIGN(avctx->width, 16);
625 ctx->surface_height = FFALIGN(avctx->height, 16);
626
627 return ff_vaapi_encode_init(avctx);
628 }
629
630 static av_cold int vaapi_encode_mpeg2_close(AVCodecContext *avctx)
631 {
632 VAAPIEncodeMPEG2Context *priv = avctx->priv_data;
633
634 ff_cbs_fragment_free(&priv->current_fragment);
635 ff_cbs_close(&priv->cbc);
636
637 return ff_vaapi_encode_close(avctx);
638 }
639
640 #define OFFSET(x) offsetof(VAAPIEncodeMPEG2Context, x)
641 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
642 static const AVOption vaapi_encode_mpeg2_options[] = {
643 VAAPI_ENCODE_COMMON_OPTIONS,
644 VAAPI_ENCODE_RC_OPTIONS,
645
646 { "profile", "Set profile (in profile_and_level_indication)",
647 OFFSET(profile), AV_OPT_TYPE_INT,
648 { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 7, FLAGS, "profile" },
649
650 #define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
651 { .i64 = value }, 0, 0, FLAGS, "profile"
652 { PROFILE("simple", FF_PROFILE_MPEG2_SIMPLE) },
653 { PROFILE("main", FF_PROFILE_MPEG2_MAIN) },
654 #undef PROFILE
655
656 { "level", "Set level (in profile_and_level_indication)",
657 OFFSET(level), AV_OPT_TYPE_INT,
658 { .i64 = 4 }, 0, 15, FLAGS, "level" },
659
660 #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
661 { .i64 = value }, 0, 0, FLAGS, "level"
662 { LEVEL("low", 10) },
663 { LEVEL("main", 8) },
664 { LEVEL("high_1440", 6) },
665 { LEVEL("high", 4) },
666 #undef LEVEL
667
668 { NULL },
669 };
670
671 static const AVCodecDefault vaapi_encode_mpeg2_defaults[] = {
672 { "b", "0" },
673 { "bf", "1" },
674 { "g", "120" },
675 { "i_qfactor", "1" },
676 { "i_qoffset", "0" },
677 { "b_qfactor", "6/5" },
678 { "b_qoffset", "0" },
679 { "qmin", "-1" },
680 { "qmax", "-1" },
681 { NULL },
682 };
683
684 static const AVClass vaapi_encode_mpeg2_class = {
685 .class_name = "mpeg2_vaapi",
686 .item_name = av_default_item_name,
687 .option = vaapi_encode_mpeg2_options,
688 .version = LIBAVUTIL_VERSION_INT,
689 };
690
691 const AVCodec ff_mpeg2_vaapi_encoder = {
692 .name = "mpeg2_vaapi",
693 .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 (VAAPI)"),
694 .type = AVMEDIA_TYPE_VIDEO,
695 .id = AV_CODEC_ID_MPEG2VIDEO,
696 .priv_data_size = sizeof(VAAPIEncodeMPEG2Context),
697 .init = &vaapi_encode_mpeg2_init,
698 .receive_packet = &ff_vaapi_encode_receive_packet,
699 .close = &vaapi_encode_mpeg2_close,
700 .priv_class = &vaapi_encode_mpeg2_class,
701 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
702 AV_CODEC_CAP_DR1,
703 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
704 .defaults = vaapi_encode_mpeg2_defaults,
705 .pix_fmts = (const enum AVPixelFormat[]) {
706 AV_PIX_FMT_VAAPI,
707 AV_PIX_FMT_NONE,
708 },
709 .hw_configs = ff_vaapi_encode_hw_configs,
710 .wrapper_name = "vaapi",
711 };
712