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path: root/libavutil/frame.c (plain)
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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 "channel_layout.h"
20#include "avassert.h"
21#include "buffer.h"
22#include "common.h"
23#include "dict.h"
24#include "frame.h"
25#include "imgutils.h"
26#include "mem.h"
27#include "samplefmt.h"
28
29
30static AVFrameSideData *frame_new_side_data(AVFrame *frame,
31 enum AVFrameSideDataType type,
32 AVBufferRef *buf);
33
34MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
35MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
36MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
37MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
38MAKE_ACCESSORS(AVFrame, frame, int, channels)
39MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
40MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
41MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
42MAKE_ACCESSORS(AVFrame, frame, int, pkt_size)
43MAKE_ACCESSORS(AVFrame, frame, enum AVColorSpace, colorspace)
44MAKE_ACCESSORS(AVFrame, frame, enum AVColorRange, color_range)
45
46#define CHECK_CHANNELS_CONSISTENCY(frame) \
47 av_assert2(!(frame)->channel_layout || \
48 (frame)->channels == \
49 av_get_channel_layout_nb_channels((frame)->channel_layout))
50
51AVDictionary **avpriv_frame_get_metadatap(AVFrame *frame) {return &frame->metadata;};
52
53#if FF_API_FRAME_QP
54int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
55{
56 av_buffer_unref(&f->qp_table_buf);
57
58 f->qp_table_buf = buf;
59
60FF_DISABLE_DEPRECATION_WARNINGS
61 f->qscale_table = buf->data;
62 f->qstride = stride;
63 f->qscale_type = qp_type;
64FF_ENABLE_DEPRECATION_WARNINGS
65
66 return 0;
67}
68
69int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
70{
71FF_DISABLE_DEPRECATION_WARNINGS
72 *stride = f->qstride;
73 *type = f->qscale_type;
74FF_ENABLE_DEPRECATION_WARNINGS
75
76 if (!f->qp_table_buf)
77 return NULL;
78
79 return f->qp_table_buf->data;
80}
81#endif
82
83const char *av_get_colorspace_name(enum AVColorSpace val)
84{
85 static const char * const name[] = {
86 [AVCOL_SPC_RGB] = "GBR",
87 [AVCOL_SPC_BT709] = "bt709",
88 [AVCOL_SPC_FCC] = "fcc",
89 [AVCOL_SPC_BT470BG] = "bt470bg",
90 [AVCOL_SPC_SMPTE170M] = "smpte170m",
91 [AVCOL_SPC_SMPTE240M] = "smpte240m",
92 [AVCOL_SPC_YCOCG] = "YCgCo",
93 };
94 if ((unsigned)val >= FF_ARRAY_ELEMS(name))
95 return NULL;
96 return name[val];
97}
98
99static void get_frame_defaults(AVFrame *frame)
100{
101 if (frame->extended_data != frame->data)
102 av_freep(&frame->extended_data);
103
104 memset(frame, 0, sizeof(*frame));
105
106 frame->pts =
107 frame->pkt_dts = AV_NOPTS_VALUE;
108#if FF_API_PKT_PTS
109FF_DISABLE_DEPRECATION_WARNINGS
110 frame->pkt_pts = AV_NOPTS_VALUE;
111FF_ENABLE_DEPRECATION_WARNINGS
112#endif
113 frame->best_effort_timestamp = AV_NOPTS_VALUE;
114 frame->pkt_duration = 0;
115 frame->pkt_pos = -1;
116 frame->pkt_size = -1;
117 frame->key_frame = 1;
118 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
119 frame->format = -1; /* unknown */
120 frame->extended_data = frame->data;
121 frame->color_primaries = AVCOL_PRI_UNSPECIFIED;
122 frame->color_trc = AVCOL_TRC_UNSPECIFIED;
123 frame->colorspace = AVCOL_SPC_UNSPECIFIED;
124 frame->color_range = AVCOL_RANGE_UNSPECIFIED;
125 frame->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
126 frame->flags = 0;
127}
128
129static void free_side_data(AVFrameSideData **ptr_sd)
130{
131 AVFrameSideData *sd = *ptr_sd;
132
133 av_buffer_unref(&sd->buf);
134 av_dict_free(&sd->metadata);
135 av_freep(ptr_sd);
136}
137
138static void wipe_side_data(AVFrame *frame)
139{
140 int i;
141
142 for (i = 0; i < frame->nb_side_data; i++) {
143 free_side_data(&frame->side_data[i]);
144 }
145 frame->nb_side_data = 0;
146
147 av_freep(&frame->side_data);
148}
149
150AVFrame *av_frame_alloc(void)
151{
152 AVFrame *frame = av_mallocz(sizeof(*frame));
153
154 if (!frame)
155 return NULL;
156
157 frame->extended_data = NULL;
158 get_frame_defaults(frame);
159
160 return frame;
161}
162
163void av_frame_free(AVFrame **frame)
164{
165 if (!frame || !*frame)
166 return;
167
168 av_frame_unref(*frame);
169 av_freep(frame);
170}
171
172static int get_video_buffer(AVFrame *frame, int align)
173{
174 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
175 int ret, i;
176
177 if (!desc)
178 return AVERROR(EINVAL);
179
180 if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
181 return ret;
182
183 if (!frame->linesize[0]) {
184 for(i=1; i<=align; i+=i) {
185 ret = av_image_fill_linesizes(frame->linesize, frame->format,
186 FFALIGN(frame->width, i));
187 if (ret < 0)
188 return ret;
189 if (!(frame->linesize[0] & (align-1)))
190 break;
191 }
192
193 for (i = 0; i < 4 && frame->linesize[i]; i++)
194 frame->linesize[i] = FFALIGN(frame->linesize[i], align);
195 }
196
197 for (i = 0; i < 4 && frame->linesize[i]; i++) {
198 int h = FFALIGN(frame->height, 32);
199 if (i == 1 || i == 2)
200 h = AV_CEIL_RSHIFT(h, desc->log2_chroma_h);
201
202 frame->buf[i] = av_buffer_alloc(frame->linesize[i] * h + 16 + 16/*STRIDE_ALIGN*/ - 1);
203 if (!frame->buf[i])
204 goto fail;
205
206 frame->data[i] = frame->buf[i]->data;
207 }
208 if (desc->flags & AV_PIX_FMT_FLAG_PAL || desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
209 av_buffer_unref(&frame->buf[1]);
210 frame->buf[1] = av_buffer_alloc(AVPALETTE_SIZE);
211 if (!frame->buf[1])
212 goto fail;
213 frame->data[1] = frame->buf[1]->data;
214 }
215
216 frame->extended_data = frame->data;
217
218 return 0;
219fail:
220 av_frame_unref(frame);
221 return AVERROR(ENOMEM);
222}
223
224static int get_audio_buffer(AVFrame *frame, int align)
225{
226 int channels;
227 int planar = av_sample_fmt_is_planar(frame->format);
228 int planes;
229 int ret, i;
230
231 if (!frame->channels)
232 frame->channels = av_get_channel_layout_nb_channels(frame->channel_layout);
233
234 channels = frame->channels;
235 planes = planar ? channels : 1;
236
237 CHECK_CHANNELS_CONSISTENCY(frame);
238 if (!frame->linesize[0]) {
239 ret = av_samples_get_buffer_size(&frame->linesize[0], channels,
240 frame->nb_samples, frame->format,
241 align);
242 if (ret < 0)
243 return ret;
244 }
245
246 if (planes > AV_NUM_DATA_POINTERS) {
247 frame->extended_data = av_mallocz_array(planes,
248 sizeof(*frame->extended_data));
249 frame->extended_buf = av_mallocz_array((planes - AV_NUM_DATA_POINTERS),
250 sizeof(*frame->extended_buf));
251 if (!frame->extended_data || !frame->extended_buf) {
252 av_freep(&frame->extended_data);
253 av_freep(&frame->extended_buf);
254 return AVERROR(ENOMEM);
255 }
256 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
257 } else
258 frame->extended_data = frame->data;
259
260 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
261 frame->buf[i] = av_buffer_alloc(frame->linesize[0]);
262 if (!frame->buf[i]) {
263 av_frame_unref(frame);
264 return AVERROR(ENOMEM);
265 }
266 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
267 }
268 for (i = 0; i < planes - AV_NUM_DATA_POINTERS; i++) {
269 frame->extended_buf[i] = av_buffer_alloc(frame->linesize[0]);
270 if (!frame->extended_buf[i]) {
271 av_frame_unref(frame);
272 return AVERROR(ENOMEM);
273 }
274 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
275 }
276 return 0;
277
278}
279
280int av_frame_get_buffer(AVFrame *frame, int align)
281{
282 if (frame->format < 0)
283 return AVERROR(EINVAL);
284
285 if (frame->width > 0 && frame->height > 0)
286 return get_video_buffer(frame, align);
287 else if (frame->nb_samples > 0 && (frame->channel_layout || frame->channels > 0))
288 return get_audio_buffer(frame, align);
289
290 return AVERROR(EINVAL);
291}
292
293static int frame_copy_props(AVFrame *dst, const AVFrame *src, int force_copy)
294{
295 int i;
296
297 dst->key_frame = src->key_frame;
298 dst->pict_type = src->pict_type;
299 dst->sample_aspect_ratio = src->sample_aspect_ratio;
300 dst->pts = src->pts;
301 dst->repeat_pict = src->repeat_pict;
302 dst->interlaced_frame = src->interlaced_frame;
303 dst->top_field_first = src->top_field_first;
304 dst->palette_has_changed = src->palette_has_changed;
305 dst->sample_rate = src->sample_rate;
306 dst->opaque = src->opaque;
307#if FF_API_PKT_PTS
308FF_DISABLE_DEPRECATION_WARNINGS
309 dst->pkt_pts = src->pkt_pts;
310FF_ENABLE_DEPRECATION_WARNINGS
311#endif
312 dst->pkt_dts = src->pkt_dts;
313 dst->pkt_pos = src->pkt_pos;
314 dst->pkt_size = src->pkt_size;
315 dst->pkt_duration = src->pkt_duration;
316 dst->reordered_opaque = src->reordered_opaque;
317 dst->quality = src->quality;
318 dst->best_effort_timestamp = src->best_effort_timestamp;
319 dst->coded_picture_number = src->coded_picture_number;
320 dst->display_picture_number = src->display_picture_number;
321 dst->flags = src->flags;
322 dst->decode_error_flags = src->decode_error_flags;
323 dst->color_primaries = src->color_primaries;
324 dst->color_trc = src->color_trc;
325 dst->colorspace = src->colorspace;
326 dst->color_range = src->color_range;
327 dst->chroma_location = src->chroma_location;
328
329 av_dict_copy(&dst->metadata, src->metadata, 0);
330
331#if FF_API_ERROR_FRAME
332FF_DISABLE_DEPRECATION_WARNINGS
333 memcpy(dst->error, src->error, sizeof(dst->error));
334FF_ENABLE_DEPRECATION_WARNINGS
335#endif
336
337 for (i = 0; i < src->nb_side_data; i++) {
338 const AVFrameSideData *sd_src = src->side_data[i];
339 AVFrameSideData *sd_dst;
340 if ( sd_src->type == AV_FRAME_DATA_PANSCAN
341 && (src->width != dst->width || src->height != dst->height))
342 continue;
343 if (force_copy) {
344 sd_dst = av_frame_new_side_data(dst, sd_src->type,
345 sd_src->size);
346 if (!sd_dst) {
347 wipe_side_data(dst);
348 return AVERROR(ENOMEM);
349 }
350 memcpy(sd_dst->data, sd_src->data, sd_src->size);
351 } else {
352 sd_dst = frame_new_side_data(dst, sd_src->type, av_buffer_ref(sd_src->buf));
353 if (!sd_dst) {
354 wipe_side_data(dst);
355 return AVERROR(ENOMEM);
356 }
357 }
358 av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
359 }
360
361#if FF_API_FRAME_QP
362FF_DISABLE_DEPRECATION_WARNINGS
363 dst->qscale_table = NULL;
364 dst->qstride = 0;
365 dst->qscale_type = 0;
366 av_buffer_unref(&dst->qp_table_buf);
367 if (src->qp_table_buf) {
368 dst->qp_table_buf = av_buffer_ref(src->qp_table_buf);
369 if (dst->qp_table_buf) {
370 dst->qscale_table = dst->qp_table_buf->data;
371 dst->qstride = src->qstride;
372 dst->qscale_type = src->qscale_type;
373 }
374 }
375FF_ENABLE_DEPRECATION_WARNINGS
376#endif
377
378 av_buffer_unref(&dst->opaque_ref);
379 if (src->opaque_ref) {
380 dst->opaque_ref = av_buffer_ref(src->opaque_ref);
381 if (!dst->opaque_ref)
382 return AVERROR(ENOMEM);
383 }
384
385 return 0;
386}
387
388int av_frame_ref(AVFrame *dst, const AVFrame *src)
389{
390 int i, ret = 0;
391
392 av_assert1(dst->width == 0 && dst->height == 0);
393 av_assert1(dst->channels == 0);
394
395 dst->format = src->format;
396 dst->width = src->width;
397 dst->height = src->height;
398 dst->channels = src->channels;
399 dst->channel_layout = src->channel_layout;
400 dst->nb_samples = src->nb_samples;
401
402 ret = frame_copy_props(dst, src, 0);
403 if (ret < 0)
404 return ret;
405
406 /* duplicate the frame data if it's not refcounted */
407 if (!src->buf[0]) {
408 ret = av_frame_get_buffer(dst, 32);
409 if (ret < 0)
410 return ret;
411
412 ret = av_frame_copy(dst, src);
413 if (ret < 0)
414 av_frame_unref(dst);
415
416 return ret;
417 }
418
419 /* ref the buffers */
420 for (i = 0; i < FF_ARRAY_ELEMS(src->buf); i++) {
421 if (!src->buf[i])
422 continue;
423 dst->buf[i] = av_buffer_ref(src->buf[i]);
424 if (!dst->buf[i]) {
425 ret = AVERROR(ENOMEM);
426 goto fail;
427 }
428 }
429
430 if (src->extended_buf) {
431 dst->extended_buf = av_mallocz_array(sizeof(*dst->extended_buf),
432 src->nb_extended_buf);
433 if (!dst->extended_buf) {
434 ret = AVERROR(ENOMEM);
435 goto fail;
436 }
437 dst->nb_extended_buf = src->nb_extended_buf;
438
439 for (i = 0; i < src->nb_extended_buf; i++) {
440 dst->extended_buf[i] = av_buffer_ref(src->extended_buf[i]);
441 if (!dst->extended_buf[i]) {
442 ret = AVERROR(ENOMEM);
443 goto fail;
444 }
445 }
446 }
447
448 if (src->hw_frames_ctx) {
449 dst->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
450 if (!dst->hw_frames_ctx) {
451 ret = AVERROR(ENOMEM);
452 goto fail;
453 }
454 }
455
456 /* duplicate extended data */
457 if (src->extended_data != src->data) {
458 int ch = src->channels;
459
460 if (!ch) {
461 ret = AVERROR(EINVAL);
462 goto fail;
463 }
464 CHECK_CHANNELS_CONSISTENCY(src);
465
466 dst->extended_data = av_malloc_array(sizeof(*dst->extended_data), ch);
467 if (!dst->extended_data) {
468 ret = AVERROR(ENOMEM);
469 goto fail;
470 }
471 memcpy(dst->extended_data, src->extended_data, sizeof(*src->extended_data) * ch);
472 } else
473 dst->extended_data = dst->data;
474
475 memcpy(dst->data, src->data, sizeof(src->data));
476 memcpy(dst->linesize, src->linesize, sizeof(src->linesize));
477
478 return 0;
479
480fail:
481 av_frame_unref(dst);
482 return ret;
483}
484
485AVFrame *av_frame_clone(const AVFrame *src)
486{
487 AVFrame *ret = av_frame_alloc();
488
489 if (!ret)
490 return NULL;
491
492 if (av_frame_ref(ret, src) < 0)
493 av_frame_free(&ret);
494
495 return ret;
496}
497
498void av_frame_unref(AVFrame *frame)
499{
500 int i;
501
502 if (!frame)
503 return;
504
505 wipe_side_data(frame);
506
507 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
508 av_buffer_unref(&frame->buf[i]);
509 for (i = 0; i < frame->nb_extended_buf; i++)
510 av_buffer_unref(&frame->extended_buf[i]);
511 av_freep(&frame->extended_buf);
512 av_dict_free(&frame->metadata);
513#if FF_API_FRAME_QP
514 av_buffer_unref(&frame->qp_table_buf);
515#endif
516
517 av_buffer_unref(&frame->hw_frames_ctx);
518
519 av_buffer_unref(&frame->opaque_ref);
520
521 get_frame_defaults(frame);
522}
523
524void av_frame_move_ref(AVFrame *dst, AVFrame *src)
525{
526 av_assert1(dst->width == 0 && dst->height == 0);
527 av_assert1(dst->channels == 0);
528
529 *dst = *src;
530 if (src->extended_data == src->data)
531 dst->extended_data = dst->data;
532 memset(src, 0, sizeof(*src));
533 get_frame_defaults(src);
534}
535
536int av_frame_is_writable(AVFrame *frame)
537{
538 int i, ret = 1;
539
540 /* assume non-refcounted frames are not writable */
541 if (!frame->buf[0])
542 return 0;
543
544 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
545 if (frame->buf[i])
546 ret &= !!av_buffer_is_writable(frame->buf[i]);
547 for (i = 0; i < frame->nb_extended_buf; i++)
548 ret &= !!av_buffer_is_writable(frame->extended_buf[i]);
549
550 return ret;
551}
552
553int av_frame_make_writable(AVFrame *frame)
554{
555 AVFrame tmp;
556 int ret;
557
558 if (!frame->buf[0])
559 return AVERROR(EINVAL);
560
561 if (av_frame_is_writable(frame))
562 return 0;
563
564 memset(&tmp, 0, sizeof(tmp));
565 tmp.format = frame->format;
566 tmp.width = frame->width;
567 tmp.height = frame->height;
568 tmp.channels = frame->channels;
569 tmp.channel_layout = frame->channel_layout;
570 tmp.nb_samples = frame->nb_samples;
571 ret = av_frame_get_buffer(&tmp, 32);
572 if (ret < 0)
573 return ret;
574
575 ret = av_frame_copy(&tmp, frame);
576 if (ret < 0) {
577 av_frame_unref(&tmp);
578 return ret;
579 }
580
581 ret = av_frame_copy_props(&tmp, frame);
582 if (ret < 0) {
583 av_frame_unref(&tmp);
584 return ret;
585 }
586
587 av_frame_unref(frame);
588
589 *frame = tmp;
590 if (tmp.data == tmp.extended_data)
591 frame->extended_data = frame->data;
592
593 return 0;
594}
595
596int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
597{
598 return frame_copy_props(dst, src, 1);
599}
600
601AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
602{
603 uint8_t *data;
604 int planes, i;
605
606 if (frame->nb_samples) {
607 int channels = frame->channels;
608 if (!channels)
609 return NULL;
610 CHECK_CHANNELS_CONSISTENCY(frame);
611 planes = av_sample_fmt_is_planar(frame->format) ? channels : 1;
612 } else
613 planes = 4;
614
615 if (plane < 0 || plane >= planes || !frame->extended_data[plane])
616 return NULL;
617 data = frame->extended_data[plane];
618
619 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++) {
620 AVBufferRef *buf = frame->buf[i];
621 if (data >= buf->data && data < buf->data + buf->size)
622 return buf;
623 }
624 for (i = 0; i < frame->nb_extended_buf; i++) {
625 AVBufferRef *buf = frame->extended_buf[i];
626 if (data >= buf->data && data < buf->data + buf->size)
627 return buf;
628 }
629 return NULL;
630}
631
632static AVFrameSideData *frame_new_side_data(AVFrame *frame,
633 enum AVFrameSideDataType type,
634 AVBufferRef *buf)
635{
636 AVFrameSideData *ret, **tmp;
637
638 if (!buf)
639 return NULL;
640
641 if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
642 goto fail;
643
644 tmp = av_realloc(frame->side_data,
645 (frame->nb_side_data + 1) * sizeof(*frame->side_data));
646 if (!tmp)
647 goto fail;
648 frame->side_data = tmp;
649
650 ret = av_mallocz(sizeof(*ret));
651 if (!ret)
652 goto fail;
653
654 ret->buf = buf;
655 ret->data = ret->buf->data;
656 ret->size = buf->size;
657 ret->type = type;
658
659 frame->side_data[frame->nb_side_data++] = ret;
660
661 return ret;
662fail:
663 av_buffer_unref(&buf);
664 return NULL;
665}
666
667AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
668 enum AVFrameSideDataType type,
669 int size)
670{
671
672 return frame_new_side_data(frame, type, av_buffer_alloc(size));
673}
674
675AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
676 enum AVFrameSideDataType type)
677{
678 int i;
679
680 for (i = 0; i < frame->nb_side_data; i++) {
681 if (frame->side_data[i]->type == type)
682 return frame->side_data[i];
683 }
684 return NULL;
685}
686
687static int frame_copy_video(AVFrame *dst, const AVFrame *src)
688{
689 const uint8_t *src_data[4];
690 int i, planes;
691
692 if (dst->width < src->width ||
693 dst->height < src->height)
694 return AVERROR(EINVAL);
695
696 planes = av_pix_fmt_count_planes(dst->format);
697 for (i = 0; i < planes; i++)
698 if (!dst->data[i] || !src->data[i])
699 return AVERROR(EINVAL);
700
701 memcpy(src_data, src->data, sizeof(src_data));
702 av_image_copy(dst->data, dst->linesize,
703 src_data, src->linesize,
704 dst->format, src->width, src->height);
705
706 return 0;
707}
708
709static int frame_copy_audio(AVFrame *dst, const AVFrame *src)
710{
711 int planar = av_sample_fmt_is_planar(dst->format);
712 int channels = dst->channels;
713 int planes = planar ? channels : 1;
714 int i;
715
716 if (dst->nb_samples != src->nb_samples ||
717 dst->channels != src->channels ||
718 dst->channel_layout != src->channel_layout)
719 return AVERROR(EINVAL);
720
721 CHECK_CHANNELS_CONSISTENCY(src);
722
723 for (i = 0; i < planes; i++)
724 if (!dst->extended_data[i] || !src->extended_data[i])
725 return AVERROR(EINVAL);
726
727 av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
728 dst->nb_samples, channels, dst->format);
729
730 return 0;
731}
732
733int av_frame_copy(AVFrame *dst, const AVFrame *src)
734{
735 if (dst->format != src->format || dst->format < 0)
736 return AVERROR(EINVAL);
737
738 if (dst->width > 0 && dst->height > 0)
739 return frame_copy_video(dst, src);
740 else if (dst->nb_samples > 0 && dst->channels > 0)
741 return frame_copy_audio(dst, src);
742
743 return AVERROR(EINVAL);
744}
745
746void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
747{
748 int i;
749
750 for (i = 0; i < frame->nb_side_data; i++) {
751 AVFrameSideData *sd = frame->side_data[i];
752 if (sd->type == type) {
753 free_side_data(&frame->side_data[i]);
754 frame->side_data[i] = frame->side_data[frame->nb_side_data - 1];
755 frame->nb_side_data--;
756 }
757 }
758}
759
760const char *av_frame_side_data_name(enum AVFrameSideDataType type)
761{
762 switch(type) {
763 case AV_FRAME_DATA_PANSCAN: return "AVPanScan";
764 case AV_FRAME_DATA_A53_CC: return "ATSC A53 Part 4 Closed Captions";
765 case AV_FRAME_DATA_STEREO3D: return "Stereoscopic 3d metadata";
766 case AV_FRAME_DATA_MATRIXENCODING: return "AVMatrixEncoding";
767 case AV_FRAME_DATA_DOWNMIX_INFO: return "Metadata relevant to a downmix procedure";
768 case AV_FRAME_DATA_REPLAYGAIN: return "AVReplayGain";
769 case AV_FRAME_DATA_DISPLAYMATRIX: return "3x3 displaymatrix";
770 case AV_FRAME_DATA_AFD: return "Active format description";
771 case AV_FRAME_DATA_MOTION_VECTORS: return "Motion vectors";
772 case AV_FRAME_DATA_SKIP_SAMPLES: return "Skip samples";
773 case AV_FRAME_DATA_AUDIO_SERVICE_TYPE: return "Audio service type";
774 case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
775 case AV_FRAME_DATA_GOP_TIMECODE: return "GOP timecode";
776 }
777 return NULL;
778}
779
generated by cgit at 2024-05-17 15:58:08 (GMT)