3 * This file is part of FFmpeg.
5 * FFmpeg is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * FFmpeg is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with FFmpeg; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include "channel_layout.h"
28 #include "samplefmt.h"
30 MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
31 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
32 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
33 MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
34 MAKE_ACCESSORS(AVFrame, frame, int, channels)
35 MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
36 MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
37 MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
38 MAKE_ACCESSORS(AVFrame, frame, int, pkt_size)
39 MAKE_ACCESSORS(AVFrame, frame, enum AVColorSpace, colorspace)
40 MAKE_ACCESSORS(AVFrame, frame, enum AVColorRange, color_range)
42 #define CHECK_CHANNELS_CONSISTENCY(frame) \
43 av_assert2(!(frame)->channel_layout || \
44 (frame)->channels == \
45 av_get_channel_layout_nb_channels((frame)->channel_layout))
47 AVDictionary **avpriv_frame_get_metadatap(AVFrame *frame) {return &frame->metadata;};
49 int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
51 av_buffer_unref(&f->qp_table_buf);
53 f->qp_table_buf = buf;
55 f->qscale_table = buf->data;
57 f->qscale_type = qp_type;
62 int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
65 *type = f->qscale_type;
70 return f->qp_table_buf->data;
73 static void get_frame_defaults(AVFrame *frame)
75 if (frame->extended_data != frame->data)
76 av_freep(&frame->extended_data);
78 memset(frame, 0, sizeof(*frame));
82 frame->pkt_pts = AV_NOPTS_VALUE;
83 av_frame_set_best_effort_timestamp(frame, AV_NOPTS_VALUE);
84 av_frame_set_pkt_duration (frame, 0);
85 av_frame_set_pkt_pos (frame, -1);
86 av_frame_set_pkt_size (frame, -1);
88 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
89 frame->format = -1; /* unknown */
90 frame->colorspace = AVCOL_SPC_UNSPECIFIED;
91 frame->extended_data = frame->data;
94 AVFrame *av_frame_alloc(void)
96 AVFrame *frame = av_mallocz(sizeof(*frame));
101 frame->extended_data = NULL;
102 get_frame_defaults(frame);
107 void av_frame_free(AVFrame **frame)
109 if (!frame || !*frame)
112 av_frame_unref(*frame);
116 static int get_video_buffer(AVFrame *frame, int align)
118 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
122 return AVERROR(EINVAL);
124 if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
127 if (!frame->linesize[0]) {
128 for(i=1; i<=align; i+=i) {
129 ret = av_image_fill_linesizes(frame->linesize, frame->format,
130 FFALIGN(frame->width, i));
133 if (!(frame->linesize[0] & (align-1)))
137 for (i = 0; i < 4 && frame->linesize[i]; i++)
138 frame->linesize[i] = FFALIGN(frame->linesize[i], align);
141 for (i = 0; i < 4 && frame->linesize[i]; i++) {
142 int h = FFALIGN(frame->height, 32);
143 if (i == 1 || i == 2)
144 h = FF_CEIL_RSHIFT(h, desc->log2_chroma_h);
146 frame->buf[i] = av_buffer_alloc(frame->linesize[i] * h + 16);
150 frame->data[i] = frame->buf[i]->data;
152 if (desc->flags & AV_PIX_FMT_FLAG_PAL || desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
153 av_buffer_unref(&frame->buf[1]);
154 frame->buf[1] = av_buffer_alloc(1024);
157 frame->data[1] = frame->buf[1]->data;
160 frame->extended_data = frame->data;
164 av_frame_unref(frame);
165 return AVERROR(ENOMEM);
168 static int get_audio_buffer(AVFrame *frame, int align)
170 int channels = frame->channels;
171 int planar = av_sample_fmt_is_planar(frame->format);
172 int planes = planar ? channels : 1;
175 CHECK_CHANNELS_CONSISTENCY(frame);
176 if (!frame->linesize[0]) {
177 ret = av_samples_get_buffer_size(&frame->linesize[0], channels,
178 frame->nb_samples, frame->format,
184 if (planes > AV_NUM_DATA_POINTERS) {
185 frame->extended_data = av_mallocz(planes *
186 sizeof(*frame->extended_data));
187 frame->extended_buf = av_mallocz((planes - AV_NUM_DATA_POINTERS) *
188 sizeof(*frame->extended_buf));
189 if (!frame->extended_data || !frame->extended_buf) {
190 av_freep(&frame->extended_data);
191 av_freep(&frame->extended_buf);
192 return AVERROR(ENOMEM);
194 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
196 frame->extended_data = frame->data;
198 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
199 frame->buf[i] = av_buffer_alloc(frame->linesize[0]);
200 if (!frame->buf[i]) {
201 av_frame_unref(frame);
202 return AVERROR(ENOMEM);
204 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
206 for (i = 0; i < planes - AV_NUM_DATA_POINTERS; i++) {
207 frame->extended_buf[i] = av_buffer_alloc(frame->linesize[0]);
208 if (!frame->extended_buf[i]) {
209 av_frame_unref(frame);
210 return AVERROR(ENOMEM);
212 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
218 int av_frame_get_buffer(AVFrame *frame, int align)
220 if (frame->format < 0)
221 return AVERROR(EINVAL);
223 if (frame->width > 0 && frame->height > 0)
224 return get_video_buffer(frame, align);
225 else if (frame->nb_samples > 0 && (frame->channel_layout || frame->channels > 0))
226 return get_audio_buffer(frame, align);
228 return AVERROR(EINVAL);
231 int av_frame_ref(AVFrame *dst, AVFrame *src)
235 dst->format = src->format;
236 dst->width = src->width;
237 dst->height = src->height;
238 dst->channels = src->channels;
239 dst->channel_layout = src->channel_layout;
240 dst->nb_samples = src->nb_samples;
242 ret = av_frame_copy_props(dst, src);
246 /* duplicate the frame data if it's not refcounted */
248 ret = av_frame_get_buffer(dst, 32);
252 if (src->nb_samples) {
253 int ch = src->channels;
254 CHECK_CHANNELS_CONSISTENCY(src);
255 av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
256 dst->nb_samples, ch, dst->format);
258 av_image_copy(dst->data, dst->linesize, src->data, src->linesize,
259 dst->format, dst->width, dst->height);
264 /* ref the buffers */
265 for (i = 0; i < FF_ARRAY_ELEMS(src->buf); i++) {
268 dst->buf[i] = av_buffer_ref(src->buf[i]);
270 ret = AVERROR(ENOMEM);
275 if (src->extended_buf) {
276 dst->extended_buf = av_mallocz(sizeof(*dst->extended_buf) *
277 src->nb_extended_buf);
278 if (!dst->extended_buf) {
279 ret = AVERROR(ENOMEM);
282 dst->nb_extended_buf = src->nb_extended_buf;
284 for (i = 0; i < src->nb_extended_buf; i++) {
285 dst->extended_buf[i] = av_buffer_ref(src->extended_buf[i]);
286 if (!dst->extended_buf[i]) {
287 ret = AVERROR(ENOMEM);
293 /* duplicate extended data */
294 if (src->extended_data != src->data) {
295 int ch = src->channels;
298 ret = AVERROR(EINVAL);
301 CHECK_CHANNELS_CONSISTENCY(src);
303 dst->extended_data = av_malloc(sizeof(*dst->extended_data) * ch);
304 if (!dst->extended_data) {
305 ret = AVERROR(ENOMEM);
308 memcpy(dst->extended_data, src->extended_data, sizeof(*src->extended_data) * ch);
310 dst->extended_data = dst->data;
312 memcpy(dst->data, src->data, sizeof(src->data));
313 memcpy(dst->linesize, src->linesize, sizeof(src->linesize));
322 AVFrame *av_frame_clone(AVFrame *src)
324 AVFrame *ret = av_frame_alloc();
329 if (av_frame_ref(ret, src) < 0)
335 void av_frame_unref(AVFrame *frame)
339 for (i = 0; i < frame->nb_side_data; i++) {
340 av_freep(&frame->side_data[i]->data);
341 av_dict_free(&frame->side_data[i]->metadata);
342 av_freep(&frame->side_data[i]);
344 av_freep(&frame->side_data);
346 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
347 av_buffer_unref(&frame->buf[i]);
348 for (i = 0; i < frame->nb_extended_buf; i++)
349 av_buffer_unref(&frame->extended_buf[i]);
350 av_freep(&frame->extended_buf);
351 av_dict_free(&frame->metadata);
352 av_buffer_unref(&frame->qp_table_buf);
354 get_frame_defaults(frame);
357 void av_frame_move_ref(AVFrame *dst, AVFrame *src)
360 if (src->extended_data == src->data)
361 dst->extended_data = dst->data;
362 memset(src, 0, sizeof(*src));
363 get_frame_defaults(src);
366 int av_frame_is_writable(AVFrame *frame)
370 /* assume non-refcounted frames are not writable */
374 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
376 ret &= !!av_buffer_is_writable(frame->buf[i]);
377 for (i = 0; i < frame->nb_extended_buf; i++)
378 ret &= !!av_buffer_is_writable(frame->extended_buf[i]);
383 int av_frame_make_writable(AVFrame *frame)
389 return AVERROR(EINVAL);
391 if (av_frame_is_writable(frame))
394 memset(&tmp, 0, sizeof(tmp));
395 tmp.format = frame->format;
396 tmp.width = frame->width;
397 tmp.height = frame->height;
398 tmp.channels = frame->channels;
399 tmp.channel_layout = frame->channel_layout;
400 tmp.nb_samples = frame->nb_samples;
401 ret = av_frame_get_buffer(&tmp, 32);
405 if (tmp.nb_samples) {
406 int ch = tmp.channels;
407 CHECK_CHANNELS_CONSISTENCY(&tmp);
408 av_samples_copy(tmp.extended_data, frame->extended_data, 0, 0,
409 frame->nb_samples, ch, frame->format);
411 av_image_copy(tmp.data, tmp.linesize, frame->data, frame->linesize,
412 frame->format, frame->width, frame->height);
415 ret = av_frame_copy_props(&tmp, frame);
417 av_frame_unref(&tmp);
421 av_frame_unref(frame);
424 if (tmp.data == tmp.extended_data)
425 frame->extended_data = frame->data;
430 int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
434 dst->key_frame = src->key_frame;
435 dst->pict_type = src->pict_type;
436 dst->sample_aspect_ratio = src->sample_aspect_ratio;
438 dst->repeat_pict = src->repeat_pict;
439 dst->interlaced_frame = src->interlaced_frame;
440 dst->top_field_first = src->top_field_first;
441 dst->palette_has_changed = src->palette_has_changed;
442 dst->sample_rate = src->sample_rate;
443 dst->opaque = src->opaque;
444 #if FF_API_AVFRAME_LAVC
445 dst->type = src->type;
447 dst->pkt_pts = src->pkt_pts;
448 dst->pkt_dts = src->pkt_dts;
449 dst->pkt_pos = src->pkt_pos;
450 dst->pkt_size = src->pkt_size;
451 dst->pkt_duration = src->pkt_duration;
452 dst->reordered_opaque = src->reordered_opaque;
453 dst->quality = src->quality;
454 dst->best_effort_timestamp = src->best_effort_timestamp;
455 dst->coded_picture_number = src->coded_picture_number;
456 dst->display_picture_number = src->display_picture_number;
457 dst->decode_error_flags = src->decode_error_flags;
458 dst->colorspace = src->colorspace;
459 dst->color_range = src->color_range;
461 av_dict_copy(&dst->metadata, src->metadata, 0);
463 memcpy(dst->error, src->error, sizeof(dst->error));
465 for (i = 0; i < src->nb_side_data; i++) {
466 const AVFrameSideData *sd_src = src->side_data[i];
467 AVFrameSideData *sd_dst = av_frame_new_side_data(dst, sd_src->type,
470 for (i = 0; i < dst->nb_side_data; i++) {
471 av_freep(&dst->side_data[i]->data);
472 av_freep(&dst->side_data[i]);
473 av_dict_free(&dst->side_data[i]->metadata);
475 av_freep(&dst->side_data);
476 return AVERROR(ENOMEM);
478 memcpy(sd_dst->data, sd_src->data, sd_src->size);
479 av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
482 dst->qscale_table = NULL;
484 dst->qscale_type = 0;
485 if (src->qp_table_buf) {
486 dst->qp_table_buf = av_buffer_ref(src->qp_table_buf);
487 if (dst->qp_table_buf) {
488 dst->qscale_table = dst->qp_table_buf->data;
489 dst->qstride = src->qstride;
490 dst->qscale_type = src->qscale_type;
497 AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
502 if (frame->nb_samples) {
503 int channels = frame->channels;
506 CHECK_CHANNELS_CONSISTENCY(frame);
507 planes = av_sample_fmt_is_planar(frame->format) ? channels : 1;
511 if (plane < 0 || plane >= planes || !frame->extended_data[plane])
513 data = frame->extended_data[plane];
515 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++) {
516 AVBufferRef *buf = frame->buf[i];
517 if (data >= buf->data && data < buf->data + buf->size)
520 for (i = 0; i < frame->nb_extended_buf; i++) {
521 AVBufferRef *buf = frame->extended_buf[i];
522 if (data >= buf->data && data < buf->data + buf->size)
528 AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
529 enum AVFrameSideDataType type,
532 AVFrameSideData *ret, **tmp;
534 if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
537 tmp = av_realloc(frame->side_data,
538 (frame->nb_side_data + 1) * sizeof(*frame->side_data));
541 frame->side_data = tmp;
543 ret = av_mallocz(sizeof(*ret));
547 ret->data = av_malloc(size);
556 frame->side_data[frame->nb_side_data++] = ret;
561 AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
562 enum AVFrameSideDataType type)
566 for (i = 0; i < frame->nb_side_data; i++) {
567 if (frame->side_data[i]->type == type)
568 return frame->side_data[i];