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/avstring.h"
29 #include "libavutil/crc.h"
30 #include "libavutil/mathematics.h"
31 #include "libavutil/pixdesc.h"
32 #include "libavutil/audioconvert.h"
33 #include "libavutil/imgutils.h"
34 #include "libavutil/samplefmt.h"
35 #include "libavutil/dict.h"
38 #include "libavutil/opt.h"
39 #include "imgconvert.h"
41 #include "audioconvert.h"
48 static int volatile entangled_thread_counter=0;
49 static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
50 static void *codec_mutex;
52 void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
57 min_size= FFMAX(17*min_size/16 + 32, min_size);
59 ptr= av_realloc(ptr, min_size);
60 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
68 void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
73 min_size= FFMAX(17*min_size/16 + 32, min_size);
75 *p = av_malloc(min_size);
76 if (!*p) min_size = 0;
80 /* encoder management */
81 static AVCodec *first_avcodec = NULL;
83 AVCodec *av_codec_next(AVCodec *c){
85 else return first_avcodec;
88 #if !FF_API_AVCODEC_INIT
91 void avcodec_init(void)
93 static int initialized = 0;
99 dsputil_static_init();
102 void avcodec_register(AVCodec *codec)
107 while (*p != NULL) p = &(*p)->next;
111 if (codec->init_static_data)
112 codec->init_static_data(codec);
115 unsigned avcodec_get_edge_width(void)
120 void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
121 s->coded_width = width;
122 s->coded_height= height;
123 s->width = -((-width )>>s->lowres);
124 s->height= -((-height)>>s->lowres);
127 typedef struct InternalBuffer{
133 enum PixelFormat pix_fmt;
136 #define INTERNAL_BUFFER_SIZE (32+1)
138 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
143 case PIX_FMT_YUV420P:
144 case PIX_FMT_YUYV422:
145 case PIX_FMT_UYVY422:
146 case PIX_FMT_YUV422P:
147 case PIX_FMT_YUV440P:
148 case PIX_FMT_YUV444P:
150 case PIX_FMT_GRAY16BE:
151 case PIX_FMT_GRAY16LE:
152 case PIX_FMT_YUVJ420P:
153 case PIX_FMT_YUVJ422P:
154 case PIX_FMT_YUVJ440P:
155 case PIX_FMT_YUVJ444P:
156 case PIX_FMT_YUVA420P:
157 case PIX_FMT_YUV420P9LE:
158 case PIX_FMT_YUV420P9BE:
159 case PIX_FMT_YUV420P10LE:
160 case PIX_FMT_YUV420P10BE:
161 case PIX_FMT_YUV422P10LE:
162 case PIX_FMT_YUV422P10BE:
163 case PIX_FMT_YUV444P9LE:
164 case PIX_FMT_YUV444P9BE:
165 case PIX_FMT_YUV444P10LE:
166 case PIX_FMT_YUV444P10BE:
167 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
169 if(s->codec_id == CODEC_ID_MPEG2VIDEO || s->codec_id == CODEC_ID_MJPEG || s->codec_id == CODEC_ID_AMV || s->codec_id == CODEC_ID_THP || s->codec_id == CODEC_ID_H264 || s->codec_id == CODEC_ID_PRORES)
170 h_align= 32; // interlaced is rounded up to 2 MBs
172 case PIX_FMT_YUV411P:
173 case PIX_FMT_UYYVYY411:
177 case PIX_FMT_YUV410P:
178 if(s->codec_id == CODEC_ID_SVQ1){
183 if(s->codec_id == CODEC_ID_RPZA){
190 if(s->codec_id == CODEC_ID_SMC){
196 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
207 *width = FFALIGN(*width , w_align);
208 *height= FFALIGN(*height, h_align);
209 if(s->codec_id == CODEC_ID_H264 || s->lowres)
210 *height+=2; // some of the optimized chroma MC reads one line too much
211 // which is also done in mpeg decoders with lowres > 0
216 linesize_align[3] = STRIDE_ALIGN;
217 //STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
218 //we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
219 //picture size unneccessarily in some cases. The solution here is not
220 //pretty and better ideas are welcome!
222 if(s->codec_id == CODEC_ID_SVQ1 || s->codec_id == CODEC_ID_VP5 ||
223 s->codec_id == CODEC_ID_VP6 || s->codec_id == CODEC_ID_VP6F ||
224 s->codec_id == CODEC_ID_VP6A) {
227 linesize_align[2] = 16;
232 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
233 int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
234 int linesize_align[4];
236 avcodec_align_dimensions2(s, width, height, linesize_align);
237 align = FFMAX(linesize_align[0], linesize_align[3]);
238 linesize_align[1] <<= chroma_shift;
239 linesize_align[2] <<= chroma_shift;
240 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
241 *width=FFALIGN(*width, align);
244 void ff_init_buffer_info(AVCodecContext *s, AVFrame *pic)
247 pic->pkt_pts = s->pkt->pts;
248 pic->pkt_pos = s->pkt->pos;
250 pic->pkt_pts = AV_NOPTS_VALUE;
253 pic->reordered_opaque= s->reordered_opaque;
254 pic->sample_aspect_ratio = s->sample_aspect_ratio;
255 pic->width = s->width;
256 pic->height = s->height;
257 pic->format = s->pix_fmt;
260 int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
267 if(pic->data[0]!=NULL) {
268 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
271 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
272 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
276 if(av_image_check_size(w, h, 0, s))
279 if(s->internal_buffer==NULL){
280 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
283 s->internal_buffer= av_fast_realloc(
285 &s->internal_buffer_size,
286 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
290 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
291 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
294 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
295 if(s->active_thread_type&FF_THREAD_FRAME) {
296 av_log_missing_feature(s, "Width/height changing with frame threads is", 0);
301 av_freep(&buf->base[i]);
307 pic->age= *picture_number - buf->last_pic_num;
308 buf->last_pic_num= *picture_number;
310 int h_chroma_shift, v_chroma_shift;
316 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
318 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
320 avcodec_align_dimensions2(s, &w, &h, stride_align);
322 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
328 // NOTE: do not align linesizes individually, this breaks e.g. assumptions
329 // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
330 av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
331 // increase alignment of w for next try (rhs gives the lowest bit set in w)
336 unaligned |= picture.linesize[i] % stride_align[i];
340 tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
344 for (i=0; i<3 && picture.data[i+1]; i++)
345 size[i] = picture.data[i+1] - picture.data[i];
346 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
348 buf->last_pic_num= -256*256*256*64;
349 memset(buf->base, 0, sizeof(buf->base));
350 memset(buf->data, 0, sizeof(buf->data));
352 for(i=0; i<4 && size[i]; i++){
353 const int h_shift= i==0 ? 0 : h_chroma_shift;
354 const int v_shift= i==0 ? 0 : v_chroma_shift;
356 buf->linesize[i]= picture.linesize[i];
358 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
359 if(buf->base[i]==NULL) return -1;
360 memset(buf->base[i], 128, size[i]);
362 // no edge if EDGE EMU or not planar YUV
363 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
364 buf->data[i] = buf->base[i];
366 buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
368 if(size[1] && !size[2])
369 ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
370 buf->width = s->width;
371 buf->height = s->height;
372 buf->pix_fmt= s->pix_fmt;
373 pic->age= 256*256*256*64;
375 pic->type= FF_BUFFER_TYPE_INTERNAL;
378 pic->base[i]= buf->base[i];
379 pic->data[i]= buf->data[i];
380 pic->linesize[i]= buf->linesize[i];
382 s->internal_buffer_count++;
385 pic->pkt_pts = s->pkt->pts;
386 pic->pkt_pos = s->pkt->pos;
388 pic->pkt_pts = AV_NOPTS_VALUE;
391 pic->reordered_opaque= s->reordered_opaque;
392 pic->sample_aspect_ratio = s->sample_aspect_ratio;
393 pic->width = s->width;
394 pic->height = s->height;
395 pic->format = s->pix_fmt;
397 if(s->debug&FF_DEBUG_BUFFERS)
398 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
403 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
405 InternalBuffer *buf, *last;
407 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
408 assert(s->internal_buffer_count);
410 if(s->internal_buffer){
411 buf = NULL; /* avoids warning */
412 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
413 buf= &((InternalBuffer*)s->internal_buffer)[i];
414 if(buf->data[0] == pic->data[0])
417 assert(i < s->internal_buffer_count);
418 s->internal_buffer_count--;
419 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
421 FFSWAP(InternalBuffer, *buf, *last);
426 // pic->base[i]=NULL;
428 //printf("R%X\n", pic->opaque);
430 if(s->debug&FF_DEBUG_BUFFERS)
431 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
434 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
438 /* If no picture return a new buffer */
439 if(pic->data[0] == NULL) {
440 /* We will copy from buffer, so must be readable */
441 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
442 return s->get_buffer(s, pic);
445 /* If internal buffer type return the same buffer */
446 if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
447 if(s->pkt) pic->pkt_pts= s->pkt->pts;
448 else pic->pkt_pts= AV_NOPTS_VALUE;
449 pic->reordered_opaque= s->reordered_opaque;
454 * Not internal type and reget_buffer not overridden, emulate cr buffer
457 for(i = 0; i < 4; i++)
458 pic->data[i] = pic->base[i] = NULL;
460 /* Allocate new frame */
461 if (s->get_buffer(s, pic))
463 /* Copy image data from old buffer to new buffer */
464 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
466 s->release_buffer(s, &temp_pic); // Release old frame
470 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
473 for(i=0; i<count; i++){
474 int r= func(c, (char*)arg + i*size);
480 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
483 for(i=0; i<count; i++){
484 int r= func(c, arg, i, 0);
490 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
491 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
496 void avcodec_get_frame_defaults(AVFrame *pic){
497 memset(pic, 0, sizeof(AVFrame));
499 pic->pts = pic->best_effort_timestamp = AV_NOPTS_VALUE;
502 pic->sample_aspect_ratio = (AVRational){0, 1};
503 pic->format = -1; /* unknown */
506 AVFrame *avcodec_alloc_frame(void){
507 AVFrame *pic= av_malloc(sizeof(AVFrame));
509 if(pic==NULL) return NULL;
511 avcodec_get_frame_defaults(pic);
516 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
518 memset(sub, 0, sizeof(*sub));
519 sub->pts = AV_NOPTS_VALUE;
522 #if FF_API_AVCODEC_OPEN
523 int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
525 return avcodec_open2(avctx, codec, NULL);
529 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options)
532 AVDictionary *tmp = NULL;
535 av_dict_copy(&tmp, *options, 0);
537 /* If there is a user-supplied mutex locking routine, call it. */
539 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
543 entangled_thread_counter++;
544 if(entangled_thread_counter != 1){
545 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
550 if(avctx->codec || !codec) {
551 ret = AVERROR(EINVAL);
555 if (codec->priv_data_size > 0) {
556 if(!avctx->priv_data){
557 avctx->priv_data = av_mallocz(codec->priv_data_size);
558 if (!avctx->priv_data) {
559 ret = AVERROR(ENOMEM);
562 if (codec->priv_class) {
563 *(AVClass**)avctx->priv_data= codec->priv_class;
564 av_opt_set_defaults(avctx->priv_data);
567 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
570 avctx->priv_data = NULL;
572 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
575 if(avctx->coded_width && avctx->coded_height)
576 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
577 else if(avctx->width && avctx->height)
578 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
580 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
581 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
582 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
583 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
584 avcodec_set_dimensions(avctx, 0, 0);
587 /* if the decoder init function was already called previously,
588 free the already allocated subtitle_header before overwriting it */
590 av_freep(&avctx->subtitle_header);
592 #define SANE_NB_CHANNELS 128U
593 if (avctx->channels > SANE_NB_CHANNELS) {
594 ret = AVERROR(EINVAL);
598 avctx->codec = codec;
599 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
600 avctx->codec_id == CODEC_ID_NONE) {
601 avctx->codec_type = codec->type;
602 avctx->codec_id = codec->id;
604 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
605 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
606 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
607 ret = AVERROR(EINVAL);
610 avctx->frame_number = 0;
613 av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
615 if (HAVE_THREADS && !avctx->thread_opaque) {
616 ret = ff_thread_init(avctx);
622 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
623 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
624 avctx->codec->max_lowres);
625 avctx->lowres = avctx->codec->max_lowres;
627 if (avctx->codec->encode) {
629 if (avctx->codec->sample_fmts) {
630 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
631 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
633 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
634 av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
635 ret = AVERROR(EINVAL);
639 if (avctx->codec->supported_samplerates) {
640 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
641 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
643 if (avctx->codec->supported_samplerates[i] == 0) {
644 av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n");
645 ret = AVERROR(EINVAL);
649 if (avctx->codec->channel_layouts) {
650 if (!avctx->channel_layout) {
651 av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n");
653 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
654 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
656 if (avctx->codec->channel_layouts[i] == 0) {
657 av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
658 ret = AVERROR(EINVAL);
663 if (avctx->channel_layout && avctx->channels) {
664 if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
665 av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
666 ret = AVERROR(EINVAL);
669 } else if (avctx->channel_layout) {
670 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
674 avctx->pts_correction_num_faulty_pts =
675 avctx->pts_correction_num_faulty_dts = 0;
676 avctx->pts_correction_last_pts =
677 avctx->pts_correction_last_dts = INT64_MIN;
679 if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
680 ret = avctx->codec->init(avctx);
688 entangled_thread_counter--;
690 /* Release any user-supplied mutex. */
692 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
695 av_dict_free(options);
702 av_freep(&avctx->priv_data);
707 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
708 const short *samples)
710 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
711 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
714 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
715 int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
716 avctx->frame_number++;
722 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
725 if(buf_size < FF_MIN_BUFFER_SIZE){
726 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
729 if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
731 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
732 int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
733 avctx->frame_number++;
734 emms_c(); //needed to avoid an emms_c() call before every return;
741 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
742 const AVSubtitle *sub)
745 if(sub->start_display_time) {
746 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
750 ret = avctx->codec->encode(avctx, buf, buf_size, sub);
751 avctx->frame_number++;
756 * Attempt to guess proper monotonic timestamps for decoded video frames
757 * which might have incorrect times. Input timestamps may wrap around, in
758 * which case the output will as well.
760 * @param pts the pts field of the decoded AVPacket, as passed through
762 * @param dts the dts field of the decoded AVPacket
763 * @return one of the input values, may be AV_NOPTS_VALUE
765 static int64_t guess_correct_pts(AVCodecContext *ctx,
766 int64_t reordered_pts, int64_t dts)
768 int64_t pts = AV_NOPTS_VALUE;
770 if (dts != AV_NOPTS_VALUE) {
771 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
772 ctx->pts_correction_last_dts = dts;
774 if (reordered_pts != AV_NOPTS_VALUE) {
775 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
776 ctx->pts_correction_last_pts = reordered_pts;
778 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
779 && reordered_pts != AV_NOPTS_VALUE)
787 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
788 int *got_picture_ptr,
794 if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
797 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
798 av_packet_split_side_data(avpkt);
800 if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
801 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
804 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
806 picture->pkt_dts= avpkt->dts;
808 if(!avctx->has_b_frames){
809 picture->pkt_pos= avpkt->pos;
811 //FIXME these should be under if(!avctx->has_b_frames)
812 if (!picture->sample_aspect_ratio.num)
813 picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
815 picture->width = avctx->width;
816 if (!picture->height)
817 picture->height = avctx->height;
818 if (picture->format == PIX_FMT_NONE)
819 picture->format = avctx->pix_fmt;
822 emms_c(); //needed to avoid an emms_c() call before every return;
825 if (*got_picture_ptr){
826 avctx->frame_number++;
827 picture->best_effort_timestamp = guess_correct_pts(avctx,
837 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
845 if (!avpkt->data && avpkt->size) {
846 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
847 return AVERROR(EINVAL);
850 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
851 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
852 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
853 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
856 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
857 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
858 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
862 ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
863 avctx->frame_number++;
871 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
879 avcodec_get_subtitle_defaults(sub);
880 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
882 avctx->frame_number++;
886 void avsubtitle_free(AVSubtitle *sub)
890 for (i = 0; i < sub->num_rects; i++)
892 av_freep(&sub->rects[i]->pict.data[0]);
893 av_freep(&sub->rects[i]->pict.data[1]);
894 av_freep(&sub->rects[i]->pict.data[2]);
895 av_freep(&sub->rects[i]->pict.data[3]);
896 av_freep(&sub->rects[i]->text);
897 av_freep(&sub->rects[i]->ass);
898 av_freep(&sub->rects[i]);
901 av_freep(&sub->rects);
903 memset(sub, 0, sizeof(AVSubtitle));
906 av_cold int avcodec_close(AVCodecContext *avctx)
908 /* If there is a user-supplied mutex locking routine, call it. */
910 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
914 entangled_thread_counter++;
915 if(entangled_thread_counter != 1){
916 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
917 entangled_thread_counter--;
921 if (HAVE_THREADS && avctx->thread_opaque)
922 ff_thread_free(avctx);
923 if (avctx->codec && avctx->codec->close)
924 avctx->codec->close(avctx);
925 avcodec_default_free_buffers(avctx);
926 avctx->coded_frame = NULL;
927 if (avctx->codec && avctx->codec->priv_class)
928 av_opt_free(avctx->priv_data);
930 av_freep(&avctx->priv_data);
931 if(avctx->codec && avctx->codec->encode)
932 av_freep(&avctx->extradata);
934 avctx->active_thread_type = 0;
935 entangled_thread_counter--;
937 /* Release any user-supplied mutex. */
939 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
944 AVCodec *avcodec_find_encoder(enum CodecID id)
946 AVCodec *p, *experimental=NULL;
949 if (p->encode != NULL && p->id == id) {
950 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
960 AVCodec *avcodec_find_encoder_by_name(const char *name)
967 if (p->encode != NULL && strcmp(name,p->name) == 0)
974 AVCodec *avcodec_find_decoder(enum CodecID id)
976 AVCodec *p, *experimental=NULL;
979 if (p->decode != NULL && p->id == id) {
980 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
990 AVCodec *avcodec_find_decoder_by_name(const char *name)
997 if (p->decode != NULL && strcmp(name,p->name) == 0)
1004 static int get_bit_rate(AVCodecContext *ctx)
1007 int bits_per_sample;
1009 switch(ctx->codec_type) {
1010 case AVMEDIA_TYPE_VIDEO:
1011 case AVMEDIA_TYPE_DATA:
1012 case AVMEDIA_TYPE_SUBTITLE:
1013 case AVMEDIA_TYPE_ATTACHMENT:
1014 bit_rate = ctx->bit_rate;
1016 case AVMEDIA_TYPE_AUDIO:
1017 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
1018 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
1027 const char *avcodec_get_name(enum CodecID id)
1033 #include "libavcodec/codec_names.h"
1035 av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
1037 codec = avcodec_find_decoder(id);
1040 codec = avcodec_find_encoder(id);
1043 return "unknown_codec";
1046 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
1048 int i, len, ret = 0;
1050 for (i = 0; i < 4; i++) {
1051 len = snprintf(buf, buf_size,
1052 isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
1054 buf_size = buf_size > len ? buf_size - len : 0;
1061 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1063 const char *codec_type;
1064 const char *codec_name;
1065 const char *profile = NULL;
1068 AVRational display_aspect_ratio;
1070 if (!buf || buf_size <= 0)
1072 codec_type = av_get_media_type_string(enc->codec_type);
1073 codec_name = avcodec_get_name(enc->codec_id);
1074 if (enc->profile != FF_PROFILE_UNKNOWN) {
1075 p = encode ? avcodec_find_encoder(enc->codec_id) :
1076 avcodec_find_decoder(enc->codec_id);
1078 profile = av_get_profile_name(p, enc->profile);
1081 snprintf(buf, buf_size, "%s: %s%s", codec_type ? codec_type : "unknown",
1082 codec_name, enc->mb_decision ? " (hq)" : "");
1083 buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
1085 snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
1086 if (enc->codec_tag) {
1088 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
1089 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1090 " (%s / 0x%04X)", tag_buf, enc->codec_tag);
1092 switch(enc->codec_type) {
1093 case AVMEDIA_TYPE_VIDEO:
1094 if (enc->pix_fmt != PIX_FMT_NONE) {
1095 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1097 av_get_pix_fmt_name(enc->pix_fmt));
1100 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1102 enc->width, enc->height);
1103 if (enc->sample_aspect_ratio.num) {
1104 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1105 enc->width*enc->sample_aspect_ratio.num,
1106 enc->height*enc->sample_aspect_ratio.den,
1108 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1109 " [SAR %d:%d DAR %d:%d]",
1110 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1111 display_aspect_ratio.num, display_aspect_ratio.den);
1113 if(av_log_get_level() >= AV_LOG_DEBUG){
1114 int g= av_gcd(enc->time_base.num, enc->time_base.den);
1115 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1117 enc->time_base.num/g, enc->time_base.den/g);
1121 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1122 ", q=%d-%d", enc->qmin, enc->qmax);
1125 case AVMEDIA_TYPE_AUDIO:
1126 if (enc->sample_rate) {
1127 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1128 ", %d Hz", enc->sample_rate);
1130 av_strlcat(buf, ", ", buf_size);
1131 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1132 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
1133 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1134 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
1141 if (enc->flags & CODEC_FLAG_PASS1)
1142 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1144 if (enc->flags & CODEC_FLAG_PASS2)
1145 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1148 bitrate = get_bit_rate(enc);
1150 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1151 ", %d kb/s", bitrate / 1000);
1155 const char *av_get_profile_name(const AVCodec *codec, int profile)
1158 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
1161 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
1162 if (p->profile == profile)
1168 unsigned avcodec_version( void )
1170 return LIBAVCODEC_VERSION_INT;
1173 const char *avcodec_configuration(void)
1175 return FFMPEG_CONFIGURATION;
1178 const char *avcodec_license(void)
1180 #define LICENSE_PREFIX "libavcodec license: "
1181 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
1184 void avcodec_flush_buffers(AVCodecContext *avctx)
1186 if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
1187 ff_thread_flush(avctx);
1188 else if(avctx->codec->flush)
1189 avctx->codec->flush(avctx);
1192 void avcodec_default_free_buffers(AVCodecContext *s){
1195 if(s->internal_buffer==NULL) return;
1197 if (s->internal_buffer_count)
1198 av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", s->internal_buffer_count);
1199 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1200 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1202 av_freep(&buf->base[j]);
1206 av_freep(&s->internal_buffer);
1208 s->internal_buffer_count=0;
1211 #if FF_API_OLD_FF_PICT_TYPES
1212 char av_get_pict_type_char(int pict_type){
1213 return av_get_picture_type_char(pict_type);
1217 int av_get_bits_per_sample(enum CodecID codec_id){
1219 case CODEC_ID_ADPCM_SBPRO_2:
1221 case CODEC_ID_ADPCM_SBPRO_3:
1223 case CODEC_ID_ADPCM_SBPRO_4:
1224 case CODEC_ID_ADPCM_CT:
1225 case CODEC_ID_ADPCM_IMA_WAV:
1226 case CODEC_ID_ADPCM_IMA_QT:
1227 case CODEC_ID_ADPCM_SWF:
1228 case CODEC_ID_ADPCM_MS:
1229 case CODEC_ID_ADPCM_YAMAHA:
1231 case CODEC_ID_ADPCM_G722:
1232 case CODEC_ID_PCM_ALAW:
1233 case CODEC_ID_PCM_MULAW:
1234 case CODEC_ID_PCM_S8:
1235 case CODEC_ID_PCM_U8:
1236 case CODEC_ID_PCM_ZORK:
1238 case CODEC_ID_PCM_S16BE:
1239 case CODEC_ID_PCM_S16LE:
1240 case CODEC_ID_PCM_S16LE_PLANAR:
1241 case CODEC_ID_PCM_U16BE:
1242 case CODEC_ID_PCM_U16LE:
1244 case CODEC_ID_PCM_S24DAUD:
1245 case CODEC_ID_PCM_S24BE:
1246 case CODEC_ID_PCM_S24LE:
1247 case CODEC_ID_PCM_U24BE:
1248 case CODEC_ID_PCM_U24LE:
1250 case CODEC_ID_PCM_S32BE:
1251 case CODEC_ID_PCM_S32LE:
1252 case CODEC_ID_PCM_U32BE:
1253 case CODEC_ID_PCM_U32LE:
1254 case CODEC_ID_PCM_F32BE:
1255 case CODEC_ID_PCM_F32LE:
1257 case CODEC_ID_PCM_F64BE:
1258 case CODEC_ID_PCM_F64LE:
1265 #if FF_API_OLD_SAMPLE_FMT
1266 int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt) {
1267 return av_get_bytes_per_sample(sample_fmt) << 3;
1272 int ff_thread_init(AVCodecContext *s){
1277 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1291 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
1293 for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
1297 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1299 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1300 "version to the newest one from Git. If the problem still "
1301 "occurs, it means that your file has a feature which has not "
1302 "been implemented.\n", feature);
1304 av_log_ask_for_sample(avc, NULL);
1307 void av_log_ask_for_sample(void *avc, const char *msg, ...)
1309 va_list argument_list;
1311 va_start(argument_list, msg);
1314 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
1315 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
1316 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
1317 "and contact the ffmpeg-devel mailing list.\n");
1319 va_end(argument_list);
1322 static AVHWAccel *first_hwaccel = NULL;
1324 void av_register_hwaccel(AVHWAccel *hwaccel)
1326 AVHWAccel **p = &first_hwaccel;
1330 hwaccel->next = NULL;
1333 AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
1335 return hwaccel ? hwaccel->next : first_hwaccel;
1338 AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
1340 AVHWAccel *hwaccel=NULL;
1342 while((hwaccel= av_hwaccel_next(hwaccel))){
1343 if ( hwaccel->id == codec_id
1344 && hwaccel->pix_fmt == pix_fmt)
1350 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
1352 if (ff_lockmgr_cb) {
1353 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
1359 if (ff_lockmgr_cb) {
1360 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
1366 unsigned int ff_toupper4(unsigned int x)
1368 return toupper( x &0xFF)
1369 + (toupper((x>>8 )&0xFF)<<8 )
1370 + (toupper((x>>16)&0xFF)<<16)
1371 + (toupper((x>>24)&0xFF)<<24);
1376 int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
1380 ff_init_buffer_info(avctx, f);
1382 return avctx->get_buffer(avctx, f);
1385 void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
1387 f->owner->release_buffer(f->owner, f);
1390 void ff_thread_finish_setup(AVCodecContext *avctx)
1394 void ff_thread_report_progress(AVFrame *f, int progress, int field)
1398 void ff_thread_await_progress(AVFrame *f, int progress, int field)
1404 #if FF_API_THREAD_INIT
1405 int avcodec_thread_init(AVCodecContext *s, int thread_count)
1407 s->thread_count = thread_count;
1408 return ff_thread_init(s);
1412 enum AVMediaType avcodec_get_type(enum CodecID codec_id)
1414 if (codec_id <= CODEC_ID_NONE)
1415 return AVMEDIA_TYPE_UNKNOWN;
1416 else if (codec_id < CODEC_ID_FIRST_AUDIO)
1417 return AVMEDIA_TYPE_VIDEO;
1418 else if (codec_id < CODEC_ID_FIRST_SUBTITLE)
1419 return AVMEDIA_TYPE_AUDIO;
1420 else if (codec_id < CODEC_ID_FIRST_UNKNOWN)
1421 return AVMEDIA_TYPE_SUBTITLE;
1423 return AVMEDIA_TYPE_UNKNOWN;