3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #include "libavutil/avassert.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/crc.h"
31 #include "libavutil/mathematics.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/audioconvert.h"
34 #include "libavutil/imgutils.h"
35 #include "libavutil/samplefmt.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/avassert.h"
40 #include "libavutil/opt.h"
41 #include "imgconvert.h"
43 #include "frame_thread_encoder.h"
44 #include "audioconvert.h"
46 #include "bytestream.h"
52 static int volatile entangled_thread_counter=0;
53 static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
54 static void *codec_mutex;
55 static void *avformat_mutex;
57 void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
62 min_size= FFMAX(17*min_size/16 + 32, min_size);
64 ptr= av_realloc(ptr, min_size);
65 if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
73 static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
78 min_size= FFMAX(17*min_size/16 + 32, min_size);
80 *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
81 if (!*p) min_size = 0;
86 void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
88 ff_fast_malloc(ptr, size, min_size, 0);
91 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
94 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
99 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
100 memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
103 void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
106 if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
111 if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
112 memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
115 /* encoder management */
116 static AVCodec *first_avcodec = NULL;
118 AVCodec *av_codec_next(const AVCodec *c)
120 if(c) return c->next;
121 else return first_avcodec;
124 static void avcodec_init(void)
126 static int initialized = 0;
128 if (initialized != 0)
132 ff_dsputil_static_init();
135 int av_codec_is_encoder(const AVCodec *codec)
137 return codec && (codec->encode || codec->encode2);
140 int av_codec_is_decoder(const AVCodec *codec)
142 return codec && codec->decode;
145 void avcodec_register(AVCodec *codec)
150 while (*p != NULL) p = &(*p)->next;
154 if (codec->init_static_data)
155 codec->init_static_data(codec);
158 unsigned avcodec_get_edge_width(void)
163 void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
164 s->coded_width = width;
165 s->coded_height= height;
166 s->width = -((-width )>>s->lowres);
167 s->height= -((-height)>>s->lowres);
170 #define INTERNAL_BUFFER_SIZE (32+1)
172 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
173 int linesize_align[AV_NUM_DATA_POINTERS])
180 case PIX_FMT_YUV420P:
181 case PIX_FMT_YUYV422:
182 case PIX_FMT_UYVY422:
183 case PIX_FMT_YUV422P:
184 case PIX_FMT_YUV440P:
185 case PIX_FMT_YUV444P:
188 case PIX_FMT_GRAY16BE:
189 case PIX_FMT_GRAY16LE:
190 case PIX_FMT_YUVJ420P:
191 case PIX_FMT_YUVJ422P:
192 case PIX_FMT_YUVJ440P:
193 case PIX_FMT_YUVJ444P:
194 case PIX_FMT_YUVA420P:
195 case PIX_FMT_YUVA422P:
196 case PIX_FMT_YUVA444P:
197 case PIX_FMT_YUV420P9LE:
198 case PIX_FMT_YUV420P9BE:
199 case PIX_FMT_YUV420P10LE:
200 case PIX_FMT_YUV420P10BE:
201 case PIX_FMT_YUV420P12LE:
202 case PIX_FMT_YUV420P12BE:
203 case PIX_FMT_YUV420P14LE:
204 case PIX_FMT_YUV420P14BE:
205 case PIX_FMT_YUV422P9LE:
206 case PIX_FMT_YUV422P9BE:
207 case PIX_FMT_YUV422P10LE:
208 case PIX_FMT_YUV422P10BE:
209 case PIX_FMT_YUV422P12LE:
210 case PIX_FMT_YUV422P12BE:
211 case PIX_FMT_YUV422P14LE:
212 case PIX_FMT_YUV422P14BE:
213 case PIX_FMT_YUV444P9LE:
214 case PIX_FMT_YUV444P9BE:
215 case PIX_FMT_YUV444P10LE:
216 case PIX_FMT_YUV444P10BE:
217 case PIX_FMT_YUV444P12LE:
218 case PIX_FMT_YUV444P12BE:
219 case PIX_FMT_YUV444P14LE:
220 case PIX_FMT_YUV444P14BE:
221 case PIX_FMT_GBRP9LE:
222 case PIX_FMT_GBRP9BE:
223 case PIX_FMT_GBRP10LE:
224 case PIX_FMT_GBRP10BE:
225 case PIX_FMT_GBRP12LE:
226 case PIX_FMT_GBRP12BE:
227 case PIX_FMT_GBRP14LE:
228 case PIX_FMT_GBRP14BE:
229 w_align = 16; //FIXME assume 16 pixel per macroblock
230 h_align = 16 * 2; // interlaced needs 2 macroblocks height
232 case PIX_FMT_YUV411P:
233 case PIX_FMT_UYYVYY411:
237 case PIX_FMT_YUV410P:
238 if(s->codec_id == AV_CODEC_ID_SVQ1){
243 if(s->codec_id == AV_CODEC_ID_RPZA){
250 if(s->codec_id == AV_CODEC_ID_SMC){
256 if((s->codec_id == AV_CODEC_ID_MSZH) || (s->codec_id == AV_CODEC_ID_ZLIB)){
267 if(s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1){
268 w_align= FFMAX(w_align, 8);
271 *width = FFALIGN(*width , w_align);
272 *height= FFALIGN(*height, h_align);
273 if(s->codec_id == AV_CODEC_ID_H264 || s->lowres)
274 *height+=2; // some of the optimized chroma MC reads one line too much
275 // which is also done in mpeg decoders with lowres > 0
277 for (i = 0; i < 4; i++)
278 linesize_align[i] = STRIDE_ALIGN;
281 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
282 int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
283 int linesize_align[AV_NUM_DATA_POINTERS];
285 avcodec_align_dimensions2(s, width, height, linesize_align);
286 align = FFMAX(linesize_align[0], linesize_align[3]);
287 linesize_align[1] <<= chroma_shift;
288 linesize_align[2] <<= chroma_shift;
289 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
290 *width=FFALIGN(*width, align);
293 void ff_init_buffer_info(AVCodecContext *s, AVFrame *frame)
296 frame->pkt_pts = s->pkt->pts;
297 frame->pkt_pos = s->pkt->pos;
298 frame->pkt_duration = s->pkt->duration;
300 frame->pkt_pts = AV_NOPTS_VALUE;
302 frame->pkt_duration = 0;
304 frame->reordered_opaque = s->reordered_opaque;
306 switch (s->codec->type) {
307 case AVMEDIA_TYPE_VIDEO:
308 frame->width = s->width;
309 frame->height = s->height;
310 frame->format = s->pix_fmt;
311 frame->sample_aspect_ratio = s->sample_aspect_ratio;
313 case AVMEDIA_TYPE_AUDIO:
314 frame->sample_rate = s->sample_rate;
315 frame->format = s->sample_fmt;
316 frame->channel_layout = s->channel_layout;
317 frame->channels = s->channels;
322 int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
323 enum AVSampleFormat sample_fmt, const uint8_t *buf,
324 int buf_size, int align)
326 int ch, planar, needed_size, ret = 0;
328 needed_size = av_samples_get_buffer_size(NULL, nb_channels,
329 frame->nb_samples, sample_fmt,
331 if (buf_size < needed_size)
332 return AVERROR(EINVAL);
334 planar = av_sample_fmt_is_planar(sample_fmt);
335 if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
336 if (!(frame->extended_data = av_mallocz(nb_channels *
337 sizeof(*frame->extended_data))))
338 return AVERROR(ENOMEM);
340 frame->extended_data = frame->data;
343 if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
344 (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
345 sample_fmt, align)) < 0) {
346 if (frame->extended_data != frame->data)
347 av_freep(&frame->extended_data);
350 if (frame->extended_data != frame->data) {
351 for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
352 frame->data[ch] = frame->extended_data[ch];
358 static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
360 AVCodecInternal *avci = avctx->internal;
364 buf_size = av_samples_get_buffer_size(NULL, avctx->channels,
365 frame->nb_samples, avctx->sample_fmt,
368 return AVERROR(EINVAL);
370 /* allocate InternalBuffer if needed */
372 avci->buffer = av_mallocz(sizeof(InternalBuffer));
374 return AVERROR(ENOMEM);
378 /* if there is a previously-used internal buffer, check its size and
379 channel count to see if we can reuse it */
380 if (buf->extended_data) {
381 /* if current buffer is too small, free it */
382 if (buf->extended_data[0] && buf_size > buf->audio_data_size) {
383 av_free(buf->extended_data[0]);
384 if (buf->extended_data != buf->data)
385 av_freep(&buf->extended_data);
386 buf->extended_data = NULL;
389 /* if number of channels has changed, reset and/or free extended data
390 pointers but leave data buffer in buf->data[0] for reuse */
391 if (buf->nb_channels != avctx->channels) {
392 if (buf->extended_data != buf->data)
393 av_free(buf->extended_data);
394 buf->extended_data = NULL;
398 /* if there is no previous buffer or the previous buffer cannot be used
399 as-is, allocate a new buffer and/or rearrange the channel pointers */
400 if (!buf->extended_data) {
402 if (!(buf->data[0] = av_mallocz(buf_size)))
403 return AVERROR(ENOMEM);
404 buf->audio_data_size = buf_size;
406 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
407 avctx->sample_fmt, buf->data[0],
408 buf->audio_data_size, 0)))
411 if (frame->extended_data == frame->data)
412 buf->extended_data = buf->data;
414 buf->extended_data = frame->extended_data;
415 memcpy(buf->data, frame->data, sizeof(frame->data));
416 buf->linesize[0] = frame->linesize[0];
417 buf->nb_channels = avctx->channels;
419 /* copy InternalBuffer info to the AVFrame */
420 frame->extended_data = buf->extended_data;
421 frame->linesize[0] = buf->linesize[0];
422 memcpy(frame->data, buf->data, sizeof(frame->data));
425 frame->type = FF_BUFFER_TYPE_INTERNAL;
426 ff_init_buffer_info(avctx, frame);
428 if (avctx->debug & FF_DEBUG_BUFFERS)
429 av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p, "
430 "internal audio buffer used\n", frame);
435 static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
441 AVCodecInternal *avci = s->internal;
443 if(pic->data[0]!=NULL) {
444 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
447 if(avci->buffer_count >= INTERNAL_BUFFER_SIZE) {
448 av_log(s, AV_LOG_ERROR, "buffer_count overflow (missing release_buffer?)\n");
452 if(av_image_check_size(w, h, 0, s) || s->pix_fmt<0) {
453 av_log(s, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
458 avci->buffer = av_mallocz((INTERNAL_BUFFER_SIZE+1) *
459 sizeof(InternalBuffer));
462 buf = &avci->buffer[avci->buffer_count];
464 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
465 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
466 av_freep(&buf->base[i]);
472 int h_chroma_shift, v_chroma_shift;
477 int stride_align[AV_NUM_DATA_POINTERS];
478 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
480 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
482 avcodec_align_dimensions2(s, &w, &h, stride_align);
484 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
490 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
491 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
492 av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
493 // increase alignment of w for next try (rhs gives the lowest bit set in w)
498 unaligned |= picture.linesize[i] % stride_align[i];
502 tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
506 for (i=0; i<3 && picture.data[i+1]; i++)
507 size[i] = picture.data[i+1] - picture.data[i];
508 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
510 memset(buf->base, 0, sizeof(buf->base));
511 memset(buf->data, 0, sizeof(buf->data));
513 for(i=0; i<4 && size[i]; i++){
514 const int h_shift= i==0 ? 0 : h_chroma_shift;
515 const int v_shift= i==0 ? 0 : v_chroma_shift;
517 buf->linesize[i]= picture.linesize[i];
519 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
520 if(buf->base[i]==NULL)
521 return AVERROR(ENOMEM);
522 memset(buf->base[i], 128, size[i]);
524 // no edge if EDGE EMU or not planar YUV
525 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
526 buf->data[i] = buf->base[i];
528 buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
530 for (; i < AV_NUM_DATA_POINTERS; i++) {
531 buf->base[i] = buf->data[i] = NULL;
532 buf->linesize[i] = 0;
534 if(size[1] && !size[2])
535 ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
536 buf->width = s->width;
537 buf->height = s->height;
538 buf->pix_fmt= s->pix_fmt;
540 pic->type= FF_BUFFER_TYPE_INTERNAL;
542 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
543 pic->base[i]= buf->base[i];
544 pic->data[i]= buf->data[i];
545 pic->linesize[i]= buf->linesize[i];
547 pic->extended_data = pic->data;
548 avci->buffer_count++;
549 pic->width = buf->width;
550 pic->height = buf->height;
551 pic->format = buf->pix_fmt;
553 ff_init_buffer_info(s, pic);
555 if(s->debug&FF_DEBUG_BUFFERS)
556 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d "
557 "buffers used\n", pic, avci->buffer_count);
562 int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
564 switch (avctx->codec_type) {
565 case AVMEDIA_TYPE_VIDEO:
566 return video_get_buffer(avctx, frame);
567 case AVMEDIA_TYPE_AUDIO:
568 return audio_get_buffer(avctx, frame);
574 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
576 InternalBuffer *buf, *last;
577 AVCodecInternal *avci = s->internal;
579 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
581 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
582 assert(avci->buffer_count);
585 buf = NULL; /* avoids warning */
586 for (i = 0; i < avci->buffer_count; i++) { //just 3-5 checks so is not worth to optimize
587 buf = &avci->buffer[i];
588 if (buf->data[0] == pic->data[0])
591 av_assert0(i < avci->buffer_count);
592 avci->buffer_count--;
593 last = &avci->buffer[avci->buffer_count];
596 FFSWAP(InternalBuffer, *buf, *last);
599 for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
601 // pic->base[i]=NULL;
603 //printf("R%X\n", pic->opaque);
605 if(s->debug&FF_DEBUG_BUFFERS)
606 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "
607 "buffers used\n", pic, avci->buffer_count);
610 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
614 av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
616 if (pic->data[0] && (pic->width != s->width || pic->height != s->height || pic->format != s->pix_fmt)) {
617 av_log(s, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
618 pic->width, pic->height, av_get_pix_fmt_name(pic->format), s->width, s->height, av_get_pix_fmt_name(s->pix_fmt));
619 s->release_buffer(s, pic);
622 ff_init_buffer_info(s, pic);
624 /* If no picture return a new buffer */
625 if(pic->data[0] == NULL) {
626 /* We will copy from buffer, so must be readable */
627 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
628 return s->get_buffer(s, pic);
631 assert(s->pix_fmt == pic->format);
633 /* If internal buffer type return the same buffer */
634 if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
639 * Not internal type and reget_buffer not overridden, emulate cr buffer
642 for(i = 0; i < AV_NUM_DATA_POINTERS; i++)
643 pic->data[i] = pic->base[i] = NULL;
645 /* Allocate new frame */
646 if (s->get_buffer(s, pic))
648 /* Copy image data from old buffer to new buffer */
649 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
651 s->release_buffer(s, &temp_pic); // Release old frame
655 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
658 for(i=0; i<count; i++){
659 int r= func(c, (char*)arg + i*size);
665 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
668 for(i=0; i<count; i++){
669 int r= func(c, arg, i, 0);
675 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
676 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
681 void avcodec_get_frame_defaults(AVFrame *pic){
682 memset(pic, 0, sizeof(AVFrame));
684 pic->pts = pic->pkt_dts = pic->pkt_pts = pic->best_effort_timestamp = AV_NOPTS_VALUE;
685 pic->pkt_duration = 0;
688 pic->sample_aspect_ratio = (AVRational){0, 1};
689 pic->format = -1; /* unknown */
692 AVFrame *avcodec_alloc_frame(void){
693 AVFrame *pic= av_malloc(sizeof(AVFrame));
695 if(pic==NULL) return NULL;
697 avcodec_get_frame_defaults(pic);
702 #define MAKE_ACCESSORS(str, name, type, field) \
703 type av_##name##_get_##field(const str *s) { return s->field; } \
704 void av_##name##_set_##field(str *s, type v) { s->field = v; }
706 MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
707 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
708 MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
709 MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
710 MAKE_ACCESSORS(AVFrame, frame, int, channels)
711 MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
712 MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
713 MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
715 MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
716 MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
718 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
720 memset(sub, 0, sizeof(*sub));
721 sub->pts = AV_NOPTS_VALUE;
724 static int get_bit_rate(AVCodecContext *ctx)
729 switch(ctx->codec_type) {
730 case AVMEDIA_TYPE_VIDEO:
731 case AVMEDIA_TYPE_DATA:
732 case AVMEDIA_TYPE_SUBTITLE:
733 case AVMEDIA_TYPE_ATTACHMENT:
734 bit_rate = ctx->bit_rate;
736 case AVMEDIA_TYPE_AUDIO:
737 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
738 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
747 #if FF_API_AVCODEC_OPEN
748 int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
750 return avcodec_open2(avctx, codec, NULL);
754 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
757 AVDictionary *tmp = NULL;
759 if (avcodec_is_open(avctx))
762 if ((!codec && !avctx->codec)) {
763 av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2().\n");
764 return AVERROR(EINVAL);
766 if ((codec && avctx->codec && codec != avctx->codec)) {
767 av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
768 "but %s passed to avcodec_open2().\n", avctx->codec->name, codec->name);
769 return AVERROR(EINVAL);
772 codec = avctx->codec;
774 if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
775 return AVERROR(EINVAL);
778 av_dict_copy(&tmp, *options, 0);
780 /* If there is a user-supplied mutex locking routine, call it. */
782 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
786 entangled_thread_counter++;
787 if(entangled_thread_counter != 1){
788 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
793 avctx->internal = av_mallocz(sizeof(AVCodecInternal));
794 if (!avctx->internal) {
795 ret = AVERROR(ENOMEM);
799 if (codec->priv_data_size > 0) {
800 if(!avctx->priv_data){
801 avctx->priv_data = av_mallocz(codec->priv_data_size);
802 if (!avctx->priv_data) {
803 ret = AVERROR(ENOMEM);
806 if (codec->priv_class) {
807 *(const AVClass**)avctx->priv_data= codec->priv_class;
808 av_opt_set_defaults(avctx->priv_data);
811 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
814 avctx->priv_data = NULL;
816 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
819 if (codec->capabilities & CODEC_CAP_EXPERIMENTAL)
820 if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
821 av_log(avctx, AV_LOG_ERROR, "Codec is experimental but experimental codecs are not enabled, try -strict -2\n");
826 //We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions
827 if(!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == AV_CODEC_ID_H264)){
828 if(avctx->coded_width && avctx->coded_height)
829 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
830 else if(avctx->width && avctx->height)
831 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
834 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
835 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
836 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
837 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
838 avcodec_set_dimensions(avctx, 0, 0);
841 /* if the decoder init function was already called previously,
842 free the already allocated subtitle_header before overwriting it */
843 if (av_codec_is_decoder(codec))
844 av_freep(&avctx->subtitle_header);
846 #define SANE_NB_CHANNELS 128U
847 if (avctx->channels > SANE_NB_CHANNELS) {
848 ret = AVERROR(EINVAL);
852 avctx->codec = codec;
853 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
854 avctx->codec_id == AV_CODEC_ID_NONE) {
855 avctx->codec_type = codec->type;
856 avctx->codec_id = codec->id;
858 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
859 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
860 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
861 ret = AVERROR(EINVAL);
864 avctx->frame_number = 0;
865 avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
867 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
868 (!avctx->time_base.num || !avctx->time_base.den)) {
869 avctx->time_base.num = 1;
870 avctx->time_base.den = avctx->sample_rate;
874 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
877 entangled_thread_counter--; //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
878 ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
879 entangled_thread_counter++;
884 if (HAVE_THREADS && !avctx->thread_opaque
885 && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
886 ret = ff_thread_init(avctx);
891 if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
892 avctx->thread_count = 1;
894 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
895 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
896 avctx->codec->max_lowres);
897 ret = AVERROR(EINVAL);
901 if (av_codec_is_encoder(avctx->codec)) {
903 if (avctx->codec->sample_fmts) {
904 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
905 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
907 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
908 av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
909 ret = AVERROR(EINVAL);
913 if (avctx->codec->pix_fmts) {
914 for (i = 0; avctx->codec->pix_fmts[i] != PIX_FMT_NONE; i++)
915 if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
917 if (avctx->codec->pix_fmts[i] == PIX_FMT_NONE
918 && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
919 && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
920 av_log(avctx, AV_LOG_ERROR, "Specified pix_fmt is not supported\n");
921 ret = AVERROR(EINVAL);
925 if (avctx->codec->supported_samplerates) {
926 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
927 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
929 if (avctx->codec->supported_samplerates[i] == 0) {
930 av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n");
931 ret = AVERROR(EINVAL);
935 if (avctx->codec->channel_layouts) {
936 if (!avctx->channel_layout) {
937 av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n");
939 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
940 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
942 if (avctx->codec->channel_layouts[i] == 0) {
943 av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
944 ret = AVERROR(EINVAL);
949 if (avctx->channel_layout && avctx->channels) {
950 if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
951 av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
952 ret = AVERROR(EINVAL);
955 } else if (avctx->channel_layout) {
956 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
960 avctx->pts_correction_num_faulty_pts =
961 avctx->pts_correction_num_faulty_dts = 0;
962 avctx->pts_correction_last_pts =
963 avctx->pts_correction_last_dts = INT64_MIN;
965 if(avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) || avctx->internal->frame_thread_encoder)){
966 ret = avctx->codec->init(avctx);
974 if (av_codec_is_decoder(avctx->codec)) {
975 if (!avctx->bit_rate)
976 avctx->bit_rate = get_bit_rate(avctx);
977 /* validate channel layout from the decoder */
978 if (avctx->channel_layout &&
979 av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
980 av_log(avctx, AV_LOG_WARNING, "channel layout does not match number of channels\n");
981 avctx->channel_layout = 0;
985 entangled_thread_counter--;
987 /* Release any user-supplied mutex. */
989 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
992 av_dict_free(options);
999 av_freep(&avctx->priv_data);
1000 av_freep(&avctx->internal);
1005 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size)
1007 if (size < 0 || avpkt->size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
1008 av_log(avctx, AV_LOG_ERROR, "Size %d invalid\n", size);
1009 return AVERROR(EINVAL);
1013 av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
1014 if (!avpkt->data || avpkt->size < size) {
1015 av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
1016 avpkt->data = avctx->internal->byte_buffer;
1017 avpkt->size = avctx->internal->byte_buffer_size;
1018 avpkt->destruct = NULL;
1023 void *destruct = avpkt->destruct;
1025 if (avpkt->size < size) {
1026 av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %d)\n", avpkt->size, size);
1027 return AVERROR(EINVAL);
1030 av_init_packet(avpkt);
1031 avpkt->destruct = destruct;
1035 int ret = av_new_packet(avpkt, size);
1037 av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", size);
1042 int ff_alloc_packet(AVPacket *avpkt, int size)
1044 return ff_alloc_packet2(NULL, avpkt, size);
1048 * Pad last frame with silence.
1050 static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
1052 AVFrame *frame = NULL;
1053 uint8_t *buf = NULL;
1056 if (!(frame = avcodec_alloc_frame()))
1057 return AVERROR(ENOMEM);
1060 if ((ret = av_samples_get_buffer_size(&frame->linesize[0], s->channels,
1061 s->frame_size, s->sample_fmt, 0)) < 0)
1064 if (!(buf = av_malloc(ret))) {
1065 ret = AVERROR(ENOMEM);
1069 frame->nb_samples = s->frame_size;
1070 if ((ret = avcodec_fill_audio_frame(frame, s->channels, s->sample_fmt,
1073 if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
1074 src->nb_samples, s->channels, s->sample_fmt)) < 0)
1076 if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
1077 frame->nb_samples - src->nb_samples,
1078 s->channels, s->sample_fmt)) < 0)
1086 if (frame->extended_data != frame->data)
1087 av_freep(&frame->extended_data);
1093 int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
1095 const AVFrame *frame,
1096 int *got_packet_ptr)
1099 AVFrame *padded_frame = NULL;
1101 AVPacket user_pkt = *avpkt;
1102 int needs_realloc = !user_pkt.data;
1104 *got_packet_ptr = 0;
1106 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1107 av_free_packet(avpkt);
1108 av_init_packet(avpkt);
1112 /* ensure that extended_data is properly set */
1113 if (frame && !frame->extended_data) {
1114 if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
1115 avctx->channels > AV_NUM_DATA_POINTERS) {
1116 av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
1117 "with more than %d channels, but extended_data is not set.\n",
1118 AV_NUM_DATA_POINTERS);
1119 return AVERROR(EINVAL);
1121 av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
1124 tmp.extended_data = tmp.data;
1128 /* check for valid frame size */
1130 if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1131 if (frame->nb_samples > avctx->frame_size) {
1132 av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
1133 return AVERROR(EINVAL);
1135 } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1136 if (frame->nb_samples < avctx->frame_size &&
1137 !avctx->internal->last_audio_frame) {
1138 ret = pad_last_frame(avctx, &padded_frame, frame);
1142 frame = padded_frame;
1143 avctx->internal->last_audio_frame = 1;
1146 if (frame->nb_samples != avctx->frame_size) {
1147 av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
1148 return AVERROR(EINVAL);
1153 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1155 if (*got_packet_ptr) {
1156 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
1157 if (avpkt->pts == AV_NOPTS_VALUE)
1158 avpkt->pts = frame->pts;
1159 if (!avpkt->duration)
1160 avpkt->duration = ff_samples_to_time_base(avctx,
1163 avpkt->dts = avpkt->pts;
1168 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1170 if (user_pkt.data) {
1171 if (user_pkt.size >= avpkt->size) {
1172 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1174 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1175 avpkt->size = user_pkt.size;
1178 avpkt->data = user_pkt.data;
1179 avpkt->destruct = user_pkt.destruct;
1181 if (av_dup_packet(avpkt) < 0) {
1182 ret = AVERROR(ENOMEM);
1188 if (needs_realloc && avpkt->data) {
1189 uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1191 avpkt->data = new_data;
1194 avctx->frame_number++;
1197 if (ret < 0 || !*got_packet_ptr) {
1198 av_free_packet(avpkt);
1199 av_init_packet(avpkt);
1203 /* NOTE: if we add any audio encoders which output non-keyframe packets,
1204 this needs to be moved to the encoders, but for now we can do it
1205 here to simplify things */
1206 avpkt->flags |= AV_PKT_FLAG_KEY;
1209 av_freep(&padded_frame->data[0]);
1210 if (padded_frame->extended_data != padded_frame->data)
1211 av_freep(&padded_frame->extended_data);
1212 av_freep(&padded_frame);
1218 #if FF_API_OLD_DECODE_AUDIO
1219 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
1220 uint8_t *buf, int buf_size,
1221 const short *samples)
1226 int ret, samples_size, got_packet;
1228 av_init_packet(&pkt);
1230 pkt.size = buf_size;
1234 avcodec_get_frame_defaults(frame);
1236 if (avctx->frame_size) {
1237 frame->nb_samples = avctx->frame_size;
1239 /* if frame_size is not set, the number of samples must be
1240 calculated from the buffer size */
1242 if (!av_get_bits_per_sample(avctx->codec_id)) {
1243 av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
1244 "support this codec\n");
1245 return AVERROR(EINVAL);
1247 nb_samples = (int64_t)buf_size * 8 /
1248 (av_get_bits_per_sample(avctx->codec_id) *
1250 if (nb_samples >= INT_MAX)
1251 return AVERROR(EINVAL);
1252 frame->nb_samples = nb_samples;
1255 /* it is assumed that the samples buffer is large enough based on the
1256 relevant parameters */
1257 samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
1259 avctx->sample_fmt, 1);
1260 if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
1262 (const uint8_t *) samples,
1266 /* fabricate frame pts from sample count.
1267 this is needed because the avcodec_encode_audio() API does not have
1268 a way for the user to provide pts */
1269 if(avctx->sample_rate && avctx->time_base.num)
1270 frame->pts = ff_samples_to_time_base(avctx,
1271 avctx->internal->sample_count);
1273 frame->pts = AV_NOPTS_VALUE;
1274 avctx->internal->sample_count += frame->nb_samples;
1280 ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
1281 if (!ret && got_packet && avctx->coded_frame) {
1282 avctx->coded_frame->pts = pkt.pts;
1283 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1285 /* free any side data since we cannot return it */
1286 ff_packet_free_side_data(&pkt);
1288 if (frame && frame->extended_data != frame->data)
1289 av_freep(&frame->extended_data);
1291 return ret ? ret : pkt.size;
1295 #if FF_API_OLD_ENCODE_VIDEO
1296 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1297 const AVFrame *pict)
1300 int ret, got_packet = 0;
1302 if(buf_size < FF_MIN_BUFFER_SIZE){
1303 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
1307 av_init_packet(&pkt);
1309 pkt.size = buf_size;
1311 ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
1312 if (!ret && got_packet && avctx->coded_frame) {
1313 avctx->coded_frame->pts = pkt.pts;
1314 avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
1317 /* free any side data since we cannot return it */
1318 if (pkt.side_data_elems > 0) {
1320 for (i = 0; i < pkt.side_data_elems; i++)
1321 av_free(pkt.side_data[i].data);
1322 av_freep(&pkt.side_data);
1323 pkt.side_data_elems = 0;
1326 return ret ? ret : pkt.size;
1330 int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
1332 const AVFrame *frame,
1333 int *got_packet_ptr)
1336 AVPacket user_pkt = *avpkt;
1337 int needs_realloc = !user_pkt.data;
1339 *got_packet_ptr = 0;
1341 if(HAVE_THREADS && avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
1342 return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
1344 if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
1345 av_free_packet(avpkt);
1346 av_init_packet(avpkt);
1351 if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
1352 return AVERROR(EINVAL);
1354 av_assert0(avctx->codec->encode2);
1356 ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
1357 av_assert0(ret <= 0);
1359 if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
1361 if (user_pkt.data) {
1362 if (user_pkt.size >= avpkt->size) {
1363 memcpy(user_pkt.data, avpkt->data, avpkt->size);
1365 av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
1366 avpkt->size = user_pkt.size;
1369 avpkt->data = user_pkt.data;
1370 avpkt->destruct = user_pkt.destruct;
1372 if (av_dup_packet(avpkt) < 0) {
1373 ret = AVERROR(ENOMEM);
1379 if (!*got_packet_ptr)
1381 else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
1382 avpkt->pts = avpkt->dts = frame->pts;
1384 if (needs_realloc && avpkt->data &&
1385 avpkt->destruct == av_destruct_packet) {
1386 uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
1388 avpkt->data = new_data;
1391 avctx->frame_number++;
1394 if (ret < 0 || !*got_packet_ptr)
1395 av_free_packet(avpkt);
1401 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
1402 const AVSubtitle *sub)
1405 if(sub->start_display_time) {
1406 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
1410 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)(intptr_t)sub);
1411 avctx->frame_number++;
1416 * Attempt to guess proper monotonic timestamps for decoded video frames
1417 * which might have incorrect times. Input timestamps may wrap around, in
1418 * which case the output will as well.
1420 * @param pts the pts field of the decoded AVPacket, as passed through
1422 * @param dts the dts field of the decoded AVPacket
1423 * @return one of the input values, may be AV_NOPTS_VALUE
1425 static int64_t guess_correct_pts(AVCodecContext *ctx,
1426 int64_t reordered_pts, int64_t dts)
1428 int64_t pts = AV_NOPTS_VALUE;
1430 if (dts != AV_NOPTS_VALUE) {
1431 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
1432 ctx->pts_correction_last_dts = dts;
1434 if (reordered_pts != AV_NOPTS_VALUE) {
1435 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
1436 ctx->pts_correction_last_pts = reordered_pts;
1438 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
1439 && reordered_pts != AV_NOPTS_VALUE)
1440 pts = reordered_pts;
1447 static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
1450 const uint8_t *data;
1453 if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
1456 data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
1457 if (!data || size < 4)
1459 flags = bytestream_get_le32(&data);
1461 if (size < 4) /* Required for any of the changes */
1463 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
1464 avctx->channels = bytestream_get_le32(&data);
1467 if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
1470 avctx->channel_layout = bytestream_get_le64(&data);
1475 if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
1476 avctx->sample_rate = bytestream_get_le32(&data);
1479 if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
1482 avctx->width = bytestream_get_le32(&data);
1483 avctx->height = bytestream_get_le32(&data);
1484 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
1489 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
1490 int *got_picture_ptr,
1491 const AVPacket *avpkt)
1494 // copy to ensure we do not change avpkt
1495 AVPacket tmp = *avpkt;
1497 if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
1498 av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
1499 return AVERROR(EINVAL);
1502 *got_picture_ptr= 0;
1503 if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
1504 return AVERROR(EINVAL);
1506 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
1507 int did_split = av_packet_split_side_data(&tmp);
1508 apply_param_change(avctx, &tmp);
1510 if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
1511 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
1514 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
1516 picture->pkt_dts= avpkt->dts;
1518 if(!avctx->has_b_frames){
1519 picture->pkt_pos= avpkt->pos;
1521 //FIXME these should be under if(!avctx->has_b_frames)
1522 if (!picture->sample_aspect_ratio.num)
1523 picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
1524 if (!picture->width)
1525 picture->width = avctx->width;
1526 if (!picture->height)
1527 picture->height = avctx->height;
1528 if (picture->format == PIX_FMT_NONE)
1529 picture->format = avctx->pix_fmt;
1532 emms_c(); //needed to avoid an emms_c() call before every return;
1536 ff_packet_free_side_data(&tmp);
1541 if (*got_picture_ptr){
1542 avctx->frame_number++;
1543 picture->best_effort_timestamp = guess_correct_pts(avctx,
1553 #if FF_API_OLD_DECODE_AUDIO
1554 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
1555 int *frame_size_ptr,
1559 int ret, got_frame = 0;
1561 if (avctx->get_buffer != avcodec_default_get_buffer) {
1562 av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
1563 "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
1564 av_log(avctx, AV_LOG_ERROR, "Please port your application to "
1565 "avcodec_decode_audio4()\n");
1566 avctx->get_buffer = avcodec_default_get_buffer;
1567 avctx->release_buffer = avcodec_default_release_buffer;
1570 ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt);
1572 if (ret >= 0 && got_frame) {
1574 int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
1575 int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
1577 avctx->sample_fmt, 1);
1578 if (*frame_size_ptr < data_size) {
1579 av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
1580 "the current frame (%d < %d)\n", *frame_size_ptr, data_size);
1581 return AVERROR(EINVAL);
1584 memcpy(samples, frame.extended_data[0], plane_size);
1586 if (planar && avctx->channels > 1) {
1587 uint8_t *out = ((uint8_t *)samples) + plane_size;
1588 for (ch = 1; ch < avctx->channels; ch++) {
1589 memcpy(out, frame.extended_data[ch], plane_size);
1593 *frame_size_ptr = data_size;
1595 *frame_size_ptr = 0;
1601 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
1604 const AVPacket *avpkt)
1610 if (!avpkt->data && avpkt->size) {
1611 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
1612 return AVERROR(EINVAL);
1614 if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
1615 av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
1616 return AVERROR(EINVAL);
1619 if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
1622 // copy to ensure we do not change avpkt
1623 AVPacket tmp = *avpkt;
1624 int did_split = av_packet_split_side_data(&tmp);
1625 apply_param_change(avctx, &tmp);
1628 ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
1629 if (ret >= 0 && *got_frame_ptr) {
1630 avctx->frame_number++;
1631 frame->pkt_dts = avpkt->dts;
1632 frame->best_effort_timestamp = guess_correct_pts(avctx,
1635 if (frame->format == AV_SAMPLE_FMT_NONE)
1636 frame->format = avctx->sample_fmt;
1637 if (!frame->channel_layout)
1638 frame->channel_layout = avctx->channel_layout;
1639 if (!frame->channels)
1640 frame->channels = avctx->channels;
1641 if (!frame->sample_rate)
1642 frame->sample_rate = avctx->sample_rate;
1645 side= av_packet_get_side_data(avctx->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
1646 if(side && side_size>=10) {
1647 avctx->internal->skip_samples = AV_RL32(side);
1648 av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
1649 avctx->internal->skip_samples);
1651 if (avctx->internal->skip_samples) {
1652 if(frame->nb_samples <= avctx->internal->skip_samples){
1654 avctx->internal->skip_samples -= frame->nb_samples;
1655 av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
1656 avctx->internal->skip_samples);
1658 av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
1659 frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
1660 if(avctx->pkt_timebase.num && avctx->sample_rate) {
1661 int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
1662 (AVRational){1, avctx->sample_rate},
1663 avctx->pkt_timebase);
1664 if(frame->pkt_pts!=AV_NOPTS_VALUE)
1665 frame->pkt_pts += diff_ts;
1666 if(frame->pkt_dts!=AV_NOPTS_VALUE)
1667 frame->pkt_dts += diff_ts;
1668 if (frame->pkt_duration >= diff_ts)
1669 frame->pkt_duration -= diff_ts;
1671 av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
1673 av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
1674 avctx->internal->skip_samples, frame->nb_samples);
1675 frame->nb_samples -= avctx->internal->skip_samples;
1676 avctx->internal->skip_samples = 0;
1682 ff_packet_free_side_data(&tmp);
1690 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
1696 if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
1697 av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
1698 return AVERROR(EINVAL);
1703 avcodec_get_subtitle_defaults(sub);
1704 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
1706 avctx->frame_number++;
1710 void avsubtitle_free(AVSubtitle *sub)
1714 for (i = 0; i < sub->num_rects; i++)
1716 av_freep(&sub->rects[i]->pict.data[0]);
1717 av_freep(&sub->rects[i]->pict.data[1]);
1718 av_freep(&sub->rects[i]->pict.data[2]);
1719 av_freep(&sub->rects[i]->pict.data[3]);
1720 av_freep(&sub->rects[i]->text);
1721 av_freep(&sub->rects[i]->ass);
1722 av_freep(&sub->rects[i]);
1725 av_freep(&sub->rects);
1727 memset(sub, 0, sizeof(AVSubtitle));
1730 av_cold int avcodec_close(AVCodecContext *avctx)
1732 /* If there is a user-supplied mutex locking routine, call it. */
1733 if (ff_lockmgr_cb) {
1734 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
1738 entangled_thread_counter++;
1739 if(entangled_thread_counter != 1){
1740 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
1741 entangled_thread_counter--;
1745 if (avcodec_is_open(avctx)) {
1746 if (HAVE_THREADS && avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
1747 entangled_thread_counter --;
1748 ff_frame_thread_encoder_free(avctx);
1749 entangled_thread_counter ++;
1751 if (HAVE_THREADS && avctx->thread_opaque)
1752 ff_thread_free(avctx);
1753 if (avctx->codec && avctx->codec->close)
1754 avctx->codec->close(avctx);
1755 avcodec_default_free_buffers(avctx);
1756 avctx->coded_frame = NULL;
1757 avctx->internal->byte_buffer_size = 0;
1758 av_freep(&avctx->internal->byte_buffer);
1759 av_freep(&avctx->internal);
1762 if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
1763 av_opt_free(avctx->priv_data);
1765 av_freep(&avctx->priv_data);
1766 if (av_codec_is_encoder(avctx->codec))
1767 av_freep(&avctx->extradata);
1768 avctx->codec = NULL;
1769 avctx->active_thread_type = 0;
1770 entangled_thread_counter--;
1772 /* Release any user-supplied mutex. */
1773 if (ff_lockmgr_cb) {
1774 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
1779 static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
1782 //This is for future deprecatec codec ids, its empty since
1783 //last major bump but will fill up again over time, please don't remove it
1784 // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
1785 default : return id;
1789 AVCodec *avcodec_find_encoder(enum AVCodecID id)
1791 AVCodec *p, *experimental=NULL;
1793 id= remap_deprecated_codec_id(id);
1795 if (av_codec_is_encoder(p) && p->id == id) {
1796 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
1803 return experimental;
1806 AVCodec *avcodec_find_encoder_by_name(const char *name)
1813 if (av_codec_is_encoder(p) && strcmp(name,p->name) == 0)
1820 AVCodec *avcodec_find_decoder(enum AVCodecID id)
1822 AVCodec *p, *experimental=NULL;
1824 id= remap_deprecated_codec_id(id);
1826 if (av_codec_is_decoder(p) && p->id == id) {
1827 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
1834 return experimental;
1837 AVCodec *avcodec_find_decoder_by_name(const char *name)
1844 if (av_codec_is_decoder(p) && strcmp(name,p->name) == 0)
1851 const char *avcodec_get_name(enum AVCodecID id)
1853 const AVCodecDescriptor *cd;
1856 if (id == AV_CODEC_ID_NONE)
1858 cd = avcodec_descriptor_get(id);
1861 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1862 codec = avcodec_find_decoder(id);
1865 codec = avcodec_find_encoder(id);
1868 return "unknown_codec";
1871 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1873 int i, len, ret = 0;
1875 #define IS_PRINT(x) \
1876 (((x) >= '0' && (x) <= '9') || \
1877 ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
1878 ((x) == '.' || (x) == ' ' || (x) == '-'))
1880 for (i = 0; i < 4; i++) {
1881 len = snprintf(buf, buf_size,
1882 IS_PRINT(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
1884 buf_size = buf_size > len ? buf_size - len : 0;
1891 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1893 const char *codec_type;
1894 const char *codec_name;
1895 const char *profile = NULL;
1898 AVRational display_aspect_ratio;
1900 if (!buf || buf_size <= 0)
1902 codec_type = av_get_media_type_string(enc->codec_type);
1903 codec_name = avcodec_get_name(enc->codec_id);
1904 if (enc->profile != FF_PROFILE_UNKNOWN) {
1908 p = encode ? avcodec_find_encoder(enc->codec_id) :
1909 avcodec_find_decoder(enc->codec_id);
1911 profile = av_get_profile_name(p, enc->profile);
1914 snprintf(buf, buf_size, "%s: %s%s", codec_type ? codec_type : "unknown",
1915 codec_name, enc->mb_decision ? " (hq)" : "");
1916 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1918 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1919 if (enc->codec_tag) {
1921 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1922 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1923 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
1925 switch(enc->codec_type) {
1926 case AVMEDIA_TYPE_VIDEO:
1927 if (enc->pix_fmt != PIX_FMT_NONE) {
1928 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1930 av_get_pix_fmt_name(enc->pix_fmt));
1933 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1935 enc->width, enc->height);
1936 if (enc->sample_aspect_ratio.num) {
1937 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1938 enc->width*enc->sample_aspect_ratio.num,
1939 enc->height*enc->sample_aspect_ratio.den,
1941 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1942 " [SAR %d:%d DAR %d:%d]",
1943 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1944 display_aspect_ratio.num, display_aspect_ratio.den);
1946 if(av_log_get_level() >= AV_LOG_DEBUG){
1947 int g= av_gcd(enc->time_base.num, enc->time_base.den);
1948 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1950 enc->time_base.num/g, enc->time_base.den/g);
1954 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1955 ", q=%d-%d", enc->qmin, enc->qmax);
1958 case AVMEDIA_TYPE_AUDIO:
1959 if (enc->sample_rate) {
1960 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1961 ", %d Hz", enc->sample_rate);
1963 av_strlcat(buf, ", ", buf_size);
1964 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1965 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1966 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1967 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1974 if (enc->flags & CODEC_FLAG_PASS1)
1975 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1977 if (enc->flags & CODEC_FLAG_PASS2)
1978 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1981 bitrate = get_bit_rate(enc);
1983 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1984 ", %d kb/s", bitrate / 1000);
1988 const char *av_get_profile_name(const AVCodec *codec, int profile)
1991 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1994 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1995 if (p->profile == profile)
2001 unsigned avcodec_version( void )
2003 // av_assert0(AV_CODEC_ID_V410==164);
2004 av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
2005 av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
2006 // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
2007 av_assert0(AV_CODEC_ID_SRT==94216);
2008 av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
2010 return LIBAVCODEC_VERSION_INT;
2013 const char *avcodec_configuration(void)
2015 return FFMPEG_CONFIGURATION;
2018 const char *avcodec_license(void)
2020 #define LICENSE_PREFIX "libavcodec license: "
2021 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
2024 void avcodec_flush_buffers(AVCodecContext *avctx)
2026 if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
2027 ff_thread_flush(avctx);
2028 else if(avctx->codec->flush)
2029 avctx->codec->flush(avctx);
2031 avctx->pts_correction_last_pts =
2032 avctx->pts_correction_last_dts = INT64_MIN;
2035 static void video_free_buffers(AVCodecContext *s)
2037 AVCodecInternal *avci = s->internal;
2043 if (avci->buffer_count)
2044 av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n",
2045 avci->buffer_count);
2046 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
2047 InternalBuffer *buf = &avci->buffer[i];
2049 av_freep(&buf->base[j]);
2053 av_freep(&avci->buffer);
2055 avci->buffer_count=0;
2058 static void audio_free_buffers(AVCodecContext *avctx)
2060 AVCodecInternal *avci = avctx->internal;
2061 InternalBuffer *buf;
2067 if (buf->extended_data) {
2068 av_free(buf->extended_data[0]);
2069 if (buf->extended_data != buf->data)
2070 av_freep(&buf->extended_data);
2072 av_freep(&avci->buffer);
2075 void avcodec_default_free_buffers(AVCodecContext *avctx)
2077 switch (avctx->codec_type) {
2078 case AVMEDIA_TYPE_VIDEO:
2079 video_free_buffers(avctx);
2081 case AVMEDIA_TYPE_AUDIO:
2082 audio_free_buffers(avctx);
2089 int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
2092 case AV_CODEC_ID_ADPCM_CT:
2093 case AV_CODEC_ID_ADPCM_IMA_APC:
2094 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
2095 case AV_CODEC_ID_ADPCM_IMA_WS:
2096 case AV_CODEC_ID_ADPCM_G722:
2097 case AV_CODEC_ID_ADPCM_YAMAHA:
2099 case AV_CODEC_ID_PCM_ALAW:
2100 case AV_CODEC_ID_PCM_MULAW:
2101 case AV_CODEC_ID_PCM_S8:
2102 case AV_CODEC_ID_PCM_U8:
2103 case AV_CODEC_ID_PCM_ZORK:
2105 case AV_CODEC_ID_PCM_S16BE:
2106 case AV_CODEC_ID_PCM_S16LE:
2107 case AV_CODEC_ID_PCM_S16LE_PLANAR:
2108 case AV_CODEC_ID_PCM_U16BE:
2109 case AV_CODEC_ID_PCM_U16LE:
2111 case AV_CODEC_ID_PCM_S24DAUD:
2112 case AV_CODEC_ID_PCM_S24BE:
2113 case AV_CODEC_ID_PCM_S24LE:
2114 case AV_CODEC_ID_PCM_U24BE:
2115 case AV_CODEC_ID_PCM_U24LE:
2117 case AV_CODEC_ID_PCM_S32BE:
2118 case AV_CODEC_ID_PCM_S32LE:
2119 case AV_CODEC_ID_PCM_U32BE:
2120 case AV_CODEC_ID_PCM_U32LE:
2121 case AV_CODEC_ID_PCM_F32BE:
2122 case AV_CODEC_ID_PCM_F32LE:
2124 case AV_CODEC_ID_PCM_F64BE:
2125 case AV_CODEC_ID_PCM_F64LE:
2132 enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
2134 static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
2135 [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2136 [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2137 [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2138 [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2139 [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2140 [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
2141 [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
2142 [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
2143 [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
2144 [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
2146 if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
2147 return AV_CODEC_ID_NONE;
2148 if (be < 0 || be > 1)
2150 return map[fmt][be];
2153 int av_get_bits_per_sample(enum AVCodecID codec_id)
2156 case AV_CODEC_ID_ADPCM_SBPRO_2:
2158 case AV_CODEC_ID_ADPCM_SBPRO_3:
2160 case AV_CODEC_ID_ADPCM_SBPRO_4:
2161 case AV_CODEC_ID_ADPCM_IMA_WAV:
2162 case AV_CODEC_ID_ADPCM_IMA_QT:
2163 case AV_CODEC_ID_ADPCM_SWF:
2164 case AV_CODEC_ID_ADPCM_MS:
2167 return av_get_exact_bits_per_sample(codec_id);
2171 int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
2173 int id, sr, ch, ba, tag, bps;
2175 id = avctx->codec_id;
2176 sr = avctx->sample_rate;
2177 ch = avctx->channels;
2178 ba = avctx->block_align;
2179 tag = avctx->codec_tag;
2180 bps = av_get_exact_bits_per_sample(avctx->codec_id);
2182 /* codecs with an exact constant bits per sample */
2183 if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
2184 return (frame_bytes * 8LL) / (bps * ch);
2185 bps = avctx->bits_per_coded_sample;
2187 /* codecs with a fixed packet duration */
2189 case AV_CODEC_ID_ADPCM_ADX: return 32;
2190 case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
2191 case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
2192 case AV_CODEC_ID_AMR_NB:
2193 case AV_CODEC_ID_GSM:
2194 case AV_CODEC_ID_QCELP:
2195 case AV_CODEC_ID_RA_288: return 160;
2196 case AV_CODEC_ID_IMC: return 256;
2197 case AV_CODEC_ID_AMR_WB:
2198 case AV_CODEC_ID_GSM_MS: return 320;
2199 case AV_CODEC_ID_MP1: return 384;
2200 case AV_CODEC_ID_ATRAC1: return 512;
2201 case AV_CODEC_ID_ATRAC3: return 1024;
2202 case AV_CODEC_ID_MP2:
2203 case AV_CODEC_ID_MUSEPACK7: return 1152;
2204 case AV_CODEC_ID_AC3: return 1536;
2208 /* calc from sample rate */
2209 if (id == AV_CODEC_ID_TTA)
2210 return 256 * sr / 245;
2213 /* calc from sample rate and channels */
2214 if (id == AV_CODEC_ID_BINKAUDIO_DCT)
2215 return (480 << (sr / 22050)) / ch;
2220 /* calc from block_align */
2221 if (id == AV_CODEC_ID_SIPR) {
2223 case 20: return 160;
2224 case 19: return 144;
2225 case 29: return 288;
2226 case 37: return 480;
2228 } else if (id == AV_CODEC_ID_ILBC) {
2230 case 38: return 160;
2231 case 50: return 240;
2236 if (frame_bytes > 0) {
2237 /* calc from frame_bytes only */
2238 if (id == AV_CODEC_ID_TRUESPEECH)
2239 return 240 * (frame_bytes / 32);
2240 if (id == AV_CODEC_ID_NELLYMOSER)
2241 return 256 * (frame_bytes / 64);
2242 if (id == AV_CODEC_ID_RA_144)
2243 return 160 * (frame_bytes / 20);
2246 /* calc from frame_bytes and bits_per_coded_sample */
2247 if (id == AV_CODEC_ID_ADPCM_G726)
2248 return frame_bytes * 8 / bps;
2252 /* calc from frame_bytes and channels */
2254 case AV_CODEC_ID_ADPCM_4XM:
2255 case AV_CODEC_ID_ADPCM_IMA_ISS:
2256 return (frame_bytes - 4 * ch) * 2 / ch;
2257 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
2258 return (frame_bytes - 4) * 2 / ch;
2259 case AV_CODEC_ID_ADPCM_IMA_AMV:
2260 return (frame_bytes - 8) * 2 / ch;
2261 case AV_CODEC_ID_ADPCM_XA:
2262 return (frame_bytes / 128) * 224 / ch;
2263 case AV_CODEC_ID_INTERPLAY_DPCM:
2264 return (frame_bytes - 6 - ch) / ch;
2265 case AV_CODEC_ID_ROQ_DPCM:
2266 return (frame_bytes - 8) / ch;
2267 case AV_CODEC_ID_XAN_DPCM:
2268 return (frame_bytes - 2 * ch) / ch;
2269 case AV_CODEC_ID_MACE3:
2270 return 3 * frame_bytes / ch;
2271 case AV_CODEC_ID_MACE6:
2272 return 6 * frame_bytes / ch;
2273 case AV_CODEC_ID_PCM_LXF:
2274 return 2 * (frame_bytes / (5 * ch));
2278 /* calc from frame_bytes, channels, and codec_tag */
2279 if (id == AV_CODEC_ID_SOL_DPCM) {
2281 return frame_bytes / ch;
2283 return frame_bytes * 2 / ch;
2288 /* calc from frame_bytes, channels, and block_align */
2289 int blocks = frame_bytes / ba;
2290 switch (avctx->codec_id) {
2291 case AV_CODEC_ID_ADPCM_IMA_WAV:
2292 return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8);
2293 case AV_CODEC_ID_ADPCM_IMA_DK3:
2294 return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
2295 case AV_CODEC_ID_ADPCM_IMA_DK4:
2296 return blocks * (1 + (ba - 4 * ch) * 2 / ch);
2297 case AV_CODEC_ID_ADPCM_MS:
2298 return blocks * (2 + (ba - 7 * ch) * 2 / ch);
2303 /* calc from frame_bytes, channels, and bits_per_coded_sample */
2304 switch (avctx->codec_id) {
2305 case AV_CODEC_ID_PCM_DVD:
2308 return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
2309 case AV_CODEC_ID_PCM_BLURAY:
2312 return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
2313 case AV_CODEC_ID_S302M:
2314 return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
2324 int ff_thread_init(AVCodecContext *s){
2329 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
2343 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
2345 for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
2349 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
2351 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
2352 "version to the newest one from Git. If the problem still "
2353 "occurs, it means that your file has a feature which has not "
2354 "been implemented.\n", feature);
2356 av_log_ask_for_sample(avc, NULL);
2359 void av_log_ask_for_sample(void *avc, const char *msg, ...)
2361 va_list argument_list;
2363 va_start(argument_list, msg);
2366 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
2367 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
2368 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
2369 "and contact the ffmpeg-devel mailing list.\n");
2371 va_end(argument_list);
2374 static AVHWAccel *first_hwaccel = NULL;
2376 void av_register_hwaccel(AVHWAccel *hwaccel)
2378 AVHWAccel **p = &first_hwaccel;
2382 hwaccel->next = NULL;
2385 AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
2387 return hwaccel ? hwaccel->next : first_hwaccel;
2390 AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum PixelFormat pix_fmt)
2392 AVHWAccel *hwaccel=NULL;
2394 while((hwaccel= av_hwaccel_next(hwaccel))){
2395 if ( hwaccel->id == codec_id
2396 && hwaccel->pix_fmt == pix_fmt)
2402 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
2404 if (ff_lockmgr_cb) {
2405 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
2407 if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
2413 if (ff_lockmgr_cb) {
2414 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
2416 if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
2422 int avpriv_lock_avformat(void)
2424 if (ff_lockmgr_cb) {
2425 if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
2431 int avpriv_unlock_avformat(void)
2433 if (ff_lockmgr_cb) {
2434 if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
2440 unsigned int avpriv_toupper4(unsigned int x)
2442 return toupper( x &0xFF)
2443 + (toupper((x>>8 )&0xFF)<<8 )
2444 + (toupper((x>>16)&0xFF)<<16)
2445 + (toupper((x>>24)&0xFF)<<24);
2450 int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
2454 ff_init_buffer_info(avctx, f);
2456 return avctx->get_buffer(avctx, f);
2459 void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
2461 f->owner->release_buffer(f->owner, f);
2464 void ff_thread_finish_setup(AVCodecContext *avctx)
2468 void ff_thread_report_progress(AVFrame *f, int progress, int field)
2472 void ff_thread_await_progress(AVFrame *f, int progress, int field)
2476 int ff_thread_can_start_frame(AVCodecContext *avctx)
2483 enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
2485 AVCodec *c= avcodec_find_decoder(codec_id);
2487 c= avcodec_find_encoder(codec_id);
2491 if (codec_id <= AV_CODEC_ID_NONE)
2492 return AVMEDIA_TYPE_UNKNOWN;
2493 else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
2494 return AVMEDIA_TYPE_VIDEO;
2495 else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
2496 return AVMEDIA_TYPE_AUDIO;
2497 else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
2498 return AVMEDIA_TYPE_SUBTITLE;
2500 return AVMEDIA_TYPE_UNKNOWN;
2503 int avcodec_is_open(AVCodecContext *s)
2505 return !!s->internal;