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"
27 #include "samplefmt.h"
29 #define MAKE_ACCESSORS(str, name, type, field) \
30 type av_##name##_get_##field(const str *s) { return s->field; } \
31 void av_##name##_set_##field(str *s, type v) { s->field = v; }
33 MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
34 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
35 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
36 MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
37 MAKE_ACCESSORS(AVFrame, frame, int, channels)
38 MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
39 MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
40 MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
41 MAKE_ACCESSORS(AVFrame, frame, int, pkt_size)
43 AVDictionary **avpriv_frame_get_metadatap(AVFrame *frame) {return &frame->metadata;};
45 int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
47 av_buffer_unref(&f->qp_table_buf);
49 f->qp_table_buf = buf;
51 f->qscale_table = buf->data;
53 f->qscale_type = qp_type;
58 int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
61 *type = f->qscale_type;
66 return f->qp_table_buf->data;
69 static void get_frame_defaults(AVFrame *frame)
71 if (frame->extended_data != frame->data)
72 av_freep(&frame->extended_data);
74 memset(frame, 0, sizeof(*frame));
78 frame->pkt_pts = AV_NOPTS_VALUE;
79 av_frame_set_best_effort_timestamp(frame, AV_NOPTS_VALUE);
80 av_frame_set_pkt_duration (frame, 0);
81 av_frame_set_pkt_pos (frame, -1);
82 av_frame_set_pkt_size (frame, -1);
84 frame->sample_aspect_ratio = (AVRational){ 0, 1 };
85 frame->format = -1; /* unknown */
86 frame->extended_data = frame->data;
89 AVFrame *av_frame_alloc(void)
91 AVFrame *frame = av_mallocz(sizeof(*frame));
96 frame->extended_data = NULL;
97 get_frame_defaults(frame);
102 void av_frame_free(AVFrame **frame)
104 if (!frame || !*frame)
107 av_frame_unref(*frame);
111 static int get_video_buffer(AVFrame *frame, int align)
113 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
117 return AVERROR(EINVAL);
119 if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
122 if (!frame->linesize[0]) {
123 ret = av_image_fill_linesizes(frame->linesize, frame->format,
128 for (i = 0; i < 4 && frame->linesize[i]; i++)
129 frame->linesize[i] = FFALIGN(frame->linesize[i], align);
132 for (i = 0; i < 4 && frame->linesize[i]; i++) {
133 int h = FFALIGN(frame->height, 32);
134 if (i == 1 || i == 2)
135 h = -((-h) >> desc->log2_chroma_h);
137 frame->buf[i] = av_buffer_alloc(frame->linesize[i] * h);
141 frame->data[i] = frame->buf[i]->data;
143 if (desc->flags & PIX_FMT_PAL || desc->flags & PIX_FMT_PSEUDOPAL) {
144 av_buffer_unref(&frame->buf[1]);
145 frame->buf[1] = av_buffer_alloc(1024);
148 frame->data[1] = frame->buf[1]->data;
151 frame->extended_data = frame->data;
155 av_frame_unref(frame);
156 return AVERROR(ENOMEM);
159 static int get_audio_buffer(AVFrame *frame, int align)
161 int channels = av_get_channel_layout_nb_channels(frame->channel_layout);
162 int planar = av_sample_fmt_is_planar(frame->format);
163 int planes = planar ? channels : 1;
166 if (!frame->linesize[0]) {
167 ret = av_samples_get_buffer_size(&frame->linesize[0], channels,
168 frame->nb_samples, frame->format,
174 if (planes > AV_NUM_DATA_POINTERS) {
175 frame->extended_data = av_mallocz(planes *
176 sizeof(*frame->extended_data));
177 frame->extended_buf = av_mallocz((planes - AV_NUM_DATA_POINTERS) *
178 sizeof(*frame->extended_buf));
179 if (!frame->extended_data || !frame->extended_buf) {
180 av_freep(&frame->extended_data);
181 av_freep(&frame->extended_buf);
182 return AVERROR(ENOMEM);
184 frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
186 frame->extended_data = frame->data;
188 for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
189 frame->buf[i] = av_buffer_alloc(frame->linesize[0]);
190 if (!frame->buf[i]) {
191 av_frame_unref(frame);
192 return AVERROR(ENOMEM);
194 frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
196 for (i = 0; i < planes - AV_NUM_DATA_POINTERS; i++) {
197 frame->extended_buf[i] = av_buffer_alloc(frame->linesize[0]);
198 if (!frame->extended_buf[i]) {
199 av_frame_unref(frame);
200 return AVERROR(ENOMEM);
202 frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
208 int av_frame_get_buffer(AVFrame *frame, int align)
210 if (frame->format < 0)
211 return AVERROR(EINVAL);
213 if (frame->width > 0 && frame->height > 0)
214 return get_video_buffer(frame, align);
215 else if (frame->nb_samples > 0 && frame->channel_layout)
216 return get_audio_buffer(frame, align);
218 return AVERROR(EINVAL);
221 int av_frame_ref(AVFrame *dst, AVFrame *src)
225 dst->format = src->format;
226 dst->width = src->width;
227 dst->height = src->height;
228 dst->channels = src->channels;
229 dst->channel_layout = src->channel_layout;
230 dst->nb_samples = src->nb_samples;
232 ret = av_frame_copy_props(dst, src);
236 /* duplicate the frame data if it's not refcounted */
238 ret = av_frame_get_buffer(dst, 32);
242 if (src->nb_samples) {
243 int ch = av_get_channel_layout_nb_channels(src->channel_layout);
244 av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
245 dst->nb_samples, ch, dst->format);
247 av_image_copy(dst->data, dst->linesize, src->data, src->linesize,
248 dst->format, dst->width, dst->height);
253 /* ref the buffers */
254 for (i = 0; i < FF_ARRAY_ELEMS(src->buf) && src->buf[i]; i++) {
255 dst->buf[i] = av_buffer_ref(src->buf[i]);
257 ret = AVERROR(ENOMEM);
262 if (src->extended_buf) {
263 dst->extended_buf = av_mallocz(sizeof(*dst->extended_buf) *
264 src->nb_extended_buf);
265 if (!dst->extended_buf) {
266 ret = AVERROR(ENOMEM);
269 dst->nb_extended_buf = src->nb_extended_buf;
271 for (i = 0; i < src->nb_extended_buf; i++) {
272 dst->extended_buf[i] = av_buffer_ref(src->extended_buf[i]);
273 if (!dst->extended_buf[i]) {
274 ret = AVERROR(ENOMEM);
280 /* duplicate extended data */
281 if (src->extended_data != src->data) {
282 int ch = av_get_channel_layout_nb_channels(src->channel_layout);
285 ret = AVERROR(EINVAL);
289 dst->extended_data = av_malloc(sizeof(*dst->extended_data) * ch);
290 if (!dst->extended_data) {
291 ret = AVERROR(ENOMEM);
294 memcpy(dst->extended_data, src->extended_data, sizeof(*src->extended_data) * ch);
296 dst->extended_data = dst->data;
298 memcpy(dst->data, src->data, sizeof(src->data));
299 memcpy(dst->linesize, src->linesize, sizeof(src->linesize));
308 AVFrame *av_frame_clone(AVFrame *src)
310 AVFrame *ret = av_frame_alloc();
315 if (av_frame_ref(ret, src) < 0)
321 void av_frame_unref(AVFrame *frame)
325 for (i = 0; i < frame->nb_side_data; i++) {
326 av_freep(&frame->side_data[i]->data);
327 av_dict_free(&frame->side_data[i]->metadata);
328 av_freep(&frame->side_data[i]);
330 av_freep(&frame->side_data);
332 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
333 av_buffer_unref(&frame->buf[i]);
334 for (i = 0; i < frame->nb_extended_buf; i++)
335 av_buffer_unref(&frame->extended_buf[i]);
336 av_freep(&frame->extended_buf);
337 av_dict_free(&frame->metadata);
338 av_buffer_unref(&frame->qp_table_buf);
340 get_frame_defaults(frame);
343 void av_frame_move_ref(AVFrame *dst, AVFrame *src)
346 if (src->extended_data == src->data)
347 dst->extended_data = dst->data;
348 memset(src, 0, sizeof(*src));
349 get_frame_defaults(src);
352 int av_frame_is_writable(AVFrame *frame)
356 /* assume non-refcounted frames are not writable */
360 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++)
361 ret &= !!av_buffer_is_writable(frame->buf[i]);
362 for (i = 0; i < frame->nb_extended_buf; i++)
363 ret &= !!av_buffer_is_writable(frame->extended_buf[i]);
368 int av_frame_make_writable(AVFrame *frame)
374 return AVERROR(EINVAL);
376 if (av_frame_is_writable(frame))
379 memset(&tmp, 0, sizeof(tmp));
380 tmp.format = frame->format;
381 tmp.width = frame->width;
382 tmp.height = frame->height;
383 tmp.channels = frame->channels;
384 tmp.channel_layout = frame->channel_layout;
385 tmp.nb_samples = frame->nb_samples;
386 ret = av_frame_get_buffer(&tmp, 32);
390 if (tmp.nb_samples) {
391 int ch = av_get_channel_layout_nb_channels(tmp.channel_layout);
392 av_samples_copy(tmp.extended_data, frame->extended_data, 0, 0,
393 frame->nb_samples, ch, frame->format);
395 av_image_copy(tmp.data, tmp.linesize, frame->data, frame->linesize,
396 frame->format, frame->width, frame->height);
399 ret = av_frame_copy_props(&tmp, frame);
401 av_frame_unref(&tmp);
405 av_frame_unref(frame);
408 if (tmp.data == tmp.extended_data)
409 frame->extended_data = frame->data;
414 int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
418 dst->key_frame = src->key_frame;
419 dst->pict_type = src->pict_type;
420 dst->sample_aspect_ratio = src->sample_aspect_ratio;
422 dst->interlaced_frame = src->interlaced_frame;
423 dst->top_field_first = src->top_field_first;
424 dst->sample_rate = src->sample_rate;
425 dst->opaque = src->opaque;
426 #if FF_API_AVFRAME_LAVC
427 dst->type = src->type;
429 dst->pkt_pts = src->pkt_pts;
430 dst->pkt_dts = src->pkt_dts;
431 dst->pkt_pos = src->pkt_pos;
432 dst->pkt_size = src->pkt_size;
433 dst->pkt_duration = src->pkt_duration;
434 dst->reordered_opaque = src->reordered_opaque;
435 dst->quality = src->quality;
436 dst->best_effort_timestamp = src->best_effort_timestamp;
437 dst->coded_picture_number = src->coded_picture_number;
438 dst->display_picture_number = src->display_picture_number;
439 dst->decode_error_flags = src->decode_error_flags;
441 av_dict_copy(&dst->metadata, src->metadata, 0);
443 for (i = 0; i < src->nb_side_data; i++) {
444 const AVFrameSideData *sd_src = src->side_data[i];
445 AVFrameSideData *sd_dst = av_frame_new_side_data(dst, sd_src->type,
448 for (i = 0; i < dst->nb_side_data; i++) {
449 av_freep(&dst->side_data[i]->data);
450 av_freep(&dst->side_data[i]);
451 av_dict_free(&dst->side_data[i]->metadata);
453 av_freep(&dst->side_data);
454 return AVERROR(ENOMEM);
456 memcpy(sd_dst->data, sd_src->data, sd_src->size);
457 av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
460 dst->qscale_table = NULL;
462 dst->qscale_type = 0;
463 if (src->qp_table_buf) {
464 dst->qp_table_buf = av_buffer_ref(src->qp_table_buf);
465 if (dst->qp_table_buf) {
466 dst->qscale_table = dst->qp_table_buf->data;
467 dst->qstride = src->qstride;
468 dst->qscale_type = src->qscale_type;
475 AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
480 if (frame->nb_samples) {
481 int channels = av_get_channel_layout_nb_channels(frame->channel_layout);
484 planes = av_sample_fmt_is_planar(frame->format) ? channels : 1;
488 if (plane < 0 || plane >= planes || !frame->extended_data[plane])
490 data = frame->extended_data[plane];
492 for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++) {
493 AVBufferRef *buf = frame->buf[i];
494 if (data >= buf->data && data < buf->data + buf->size)
497 for (i = 0; i < frame->nb_extended_buf; i++) {
498 AVBufferRef *buf = frame->extended_buf[i];
499 if (data >= buf->data && data < buf->data + buf->size)
505 AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
506 enum AVFrameSideDataType type,
509 AVFrameSideData *ret, **tmp;
511 if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
514 tmp = av_realloc(frame->side_data,
515 (frame->nb_side_data + 1) * sizeof(*frame->side_data));
518 frame->side_data = tmp;
520 ret = av_mallocz(sizeof(*ret));
524 ret->data = av_malloc(size);
533 frame->side_data[frame->nb_side_data++] = ret;
538 AVFrameSideData *av_frame_get_side_data(AVFrame *frame,
539 enum AVFrameSideDataType type)
543 for (i = 0; i < frame->nb_side_data; i++) {
544 if (frame->side_data[i]->type == type)
545 return frame->side_data[i];