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