* Various utilities for ffmpeg system
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
+#include "allformats.h"
+#include "opt.h"
#undef NDEBUG
#include <assert.h>
* Various utility functions for using ffmpeg library.
*/
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
+static void av_frac_add(AVFrac *f, int64_t incr);
+static void av_frac_set(AVFrac *f, int64_t val);
+
/** head of registered input format linked list. */
AVInputFormat *first_iformat = NULL;
/** head of registered output format linked list. */
int score_max, score;
/* specific test for image sequences */
+#ifdef CONFIG_IMAGE2_MUXER
if (!short_name && filename &&
- filename_number_test(filename) >= 0 &&
+ av_filename_number_test(filename) &&
av_guess_image2_codec(filename) != CODEC_ID_NONE) {
return guess_format("image2", NULL, NULL);
}
+#endif
if (!short_name && filename &&
- filename_number_test(filename) >= 0 &&
+ av_filename_number_test(filename) &&
guess_image_format(filename)) {
return guess_format("image", NULL, NULL);
}
if(type == CODEC_TYPE_VIDEO){
enum CodecID codec_id= CODEC_ID_NONE;
+#ifdef CONFIG_IMAGE2_MUXER
if(!strcmp(fmt->name, "image2") || !strcmp(fmt->name, "image2pipe")){
codec_id= av_guess_image2_codec(filename);
}
+#endif
if(codec_id == CODEC_ID_NONE)
codec_id= fmt->video_codec;
return codec_id;
return 0;
}
-/* fifo handling */
-
-int fifo_init(FifoBuffer *f, int size)
-{
- f->buffer = av_malloc(size);
- if (!f->buffer)
- return -1;
- f->end = f->buffer + size;
- f->wptr = f->rptr = f->buffer;
- return 0;
-}
-
-void fifo_free(FifoBuffer *f)
-{
- av_free(f->buffer);
-}
-
-int fifo_size(FifoBuffer *f, uint8_t *rptr)
-{
- int size;
-
- if(!rptr)
- rptr= f->rptr;
-
- if (f->wptr >= rptr) {
- size = f->wptr - rptr;
- } else {
- size = (f->end - rptr) + (f->wptr - f->buffer);
- }
- return size;
-}
-
-/**
- * Get data from the fifo (returns -1 if not enough data).
- */
-int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr)
-{
- uint8_t *rptr;
- int size, len;
-
- if(!rptr_ptr)
- rptr_ptr= &f->rptr;
- rptr = *rptr_ptr;
-
- if (f->wptr >= rptr) {
- size = f->wptr - rptr;
- } else {
- size = (f->end - rptr) + (f->wptr - f->buffer);
- }
-
- if (size < buf_size)
- return -1;
- while (buf_size > 0) {
- len = f->end - rptr;
- if (len > buf_size)
- len = buf_size;
- memcpy(buf, rptr, len);
- buf += len;
- rptr += len;
- if (rptr >= f->end)
- rptr = f->buffer;
- buf_size -= len;
- }
- *rptr_ptr = rptr;
- return 0;
-}
-
/**
- * Resizes a FIFO.
+ * Allocate the payload of a packet and intialized its fields to default values.
+ *
+ * @param filename possible numbered sequence string
+ * @return 1 if a valid numbered sequence string, 0 otherwise.
*/
-void fifo_realloc(FifoBuffer *f, unsigned int new_size){
- unsigned int old_size= f->end - f->buffer;
-
- if(old_size < new_size){
- uint8_t *old= f->buffer;
-
- f->buffer= av_realloc(f->buffer, new_size);
-
- f->rptr += f->buffer - old;
- f->wptr += f->buffer - old;
-
- if(f->wptr < f->rptr){
- memmove(f->rptr + new_size - old_size, f->rptr, f->buffer + old_size - f->rptr);
- f->rptr += new_size - old_size;
- }
- f->end= f->buffer + new_size;
- }
-}
-
-void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr)
-{
- int len;
- uint8_t *wptr;
-
- if(!wptr_ptr)
- wptr_ptr= &f->wptr;
- wptr = *wptr_ptr;
-
- while (size > 0) {
- len = f->end - wptr;
- if (len > size)
- len = size;
- memcpy(wptr, buf, len);
- wptr += len;
- if (wptr >= f->end)
- wptr = f->buffer;
- buf += len;
- size -= len;
- }
- *wptr_ptr = wptr;
-}
-
-/* get data from the fifo (return -1 if not enough data) */
-int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr)
-{
- uint8_t *rptr = *rptr_ptr;
- int size, len;
-
- if (f->wptr >= rptr) {
- size = f->wptr - rptr;
- } else {
- size = (f->end - rptr) + (f->wptr - f->buffer);
- }
-
- if (size < buf_size)
- return -1;
- while (buf_size > 0) {
- len = f->end - rptr;
- if (len > buf_size)
- len = buf_size;
- put_buffer(pb, rptr, len);
- rptr += len;
- if (rptr >= f->end)
- rptr = f->buffer;
- buf_size -= len;
- }
- *rptr_ptr = rptr;
- return 0;
-}
-
-int filename_number_test(const char *filename)
+int av_filename_number_test(const char *filename)
{
char buf[1024];
- if(!filename)
- return -1;
- return get_frame_filename(buf, sizeof(buf), filename, 1);
+ return filename && (av_get_frame_filename(buf, sizeof(buf), filename, 1)>=0);
}
/**
else return "NULL";
}
-static const AVClass av_format_context_class = { "AVFormatContext", format_to_name };
+#define OFFSET(x) offsetof(AVFormatContext,x)
+#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
+//these names are too long to be readable
+#define E AV_OPT_FLAG_ENCODING_PARAM
+#define D AV_OPT_FLAG_DECODING_PARAM
+
+static const AVOption options[]={
+{"probesize", NULL, OFFSET(probesize), FF_OPT_TYPE_INT, 32000, 32, INT_MAX, D}, /* 32000 from mpegts.c: 1.0 second at 24Mbit/s */
+{"muxrate", "set mux rate", OFFSET(mux_rate), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E},
+{"packetsize", "set packet size", OFFSET(packet_size), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E},
+{"fflags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, D, "fflags"},
+{"ignidx", "ignore index", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNIDX, INT_MIN, INT_MAX, D, "fflags"},
+{"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_GENPTS, INT_MIN, INT_MAX, D, "fflags"},
+{"track", " set the track number", OFFSET(track), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E},
+{"year", "set the year", OFFSET(year), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, E},
+{NULL},
+};
+
+#undef E
+#undef D
+#undef DEFAULT
+
+static const AVClass av_format_context_class = { "AVFormatContext", format_to_name, options };
+
+#if LIBAVCODEC_VERSION_INT > ((52<<16)+(0<<8)+0)
+static
+#endif
+void avformat_get_context_defaults(AVFormatContext *s){
+ memset(s, 0, sizeof(AVFormatContext));
+
+ s->av_class = &av_format_context_class;
+
+ av_opt_set_defaults(s);
+}
AVFormatContext *av_alloc_format_context(void)
{
AVFormatContext *ic;
- ic = av_mallocz(sizeof(AVFormatContext));
+ ic = av_malloc(sizeof(AVFormatContext));
if (!ic) return ic;
+ avformat_get_context_defaults(ic);
ic->av_class = &av_format_context_class;
return ic;
}
{
int err;
AVFormatContext *ic;
+ AVFormatParameters default_ap;
+
+ if(!ap){
+ ap=&default_ap;
+ memset(ap, 0, sizeof(default_ap));
+ }
- ic = av_alloc_format_context();
+ if(!ap->prealloced_context)
+ ic = av_alloc_format_context();
+ else
+ ic = *ic_ptr;
if (!ic) {
err = AVERROR_NOMEM;
goto fail;
}
/** Size of probe buffer, for guessing file type from file contents. */
-#define PROBE_BUF_SIZE 2048
+#define PROBE_BUF_MIN 2048
+#define PROBE_BUF_MAX (1<<20)
/**
* Open a media file as input. The codec are not opened. Only the file
int buf_size,
AVFormatParameters *ap)
{
- int err, must_open_file, file_opened;
- uint8_t buf[PROBE_BUF_SIZE];
+ int err, must_open_file, file_opened, probe_size;
AVProbeData probe_data, *pd = &probe_data;
ByteIOContext pb1, *pb = &pb1;
pd->filename = "";
if (filename)
pd->filename = filename;
- pd->buf = buf;
+ pd->buf = NULL;
pd->buf_size = 0;
if (!fmt) {
if (buf_size > 0) {
url_setbufsize(pb, buf_size);
}
- if (!fmt) {
+
+ for(probe_size= PROBE_BUF_MIN; probe_size<=PROBE_BUF_MAX && !fmt; probe_size<<=1){
/* read probe data */
- pd->buf_size = get_buffer(pb, buf, PROBE_BUF_SIZE);
+ pd->buf= av_realloc(pd->buf, probe_size);
+ pd->buf_size = get_buffer(pb, pd->buf, probe_size);
if (url_fseek(pb, 0, SEEK_SET) == (offset_t)-EPIPE) {
url_fclose(pb);
if (url_fopen(pb, filename, URL_RDONLY) < 0) {
+ file_opened = 0;
err = AVERROR_IO;
goto fail;
}
}
+ /* guess file format */
+ fmt = av_probe_input_format(pd, 1);
}
- }
-
- /* guess file format */
- if (!fmt) {
- fmt = av_probe_input_format(pd, 1);
+ av_freep(&pd->buf);
}
/* if still no format found, error */
/* XXX: suppress this hack for redirectors */
#ifdef CONFIG_NETWORK
- if (fmt == &redir_demux) {
+ if (fmt == &redir_demuxer) {
err = redir_open(ic_ptr, pb);
url_fclose(pb);
return err;
/* check filename in case of an image number is expected */
if (fmt->flags & AVFMT_NEEDNUMBER) {
- if (filename_number_test(filename) < 0) {
+ if (!av_filename_number_test(filename)) {
err = AVERROR_NUMEXPECTED;
goto fail;
}
goto fail;
return 0;
fail:
+ av_freep(&pd->buf);
if (file_opened)
url_fclose(pb);
*ic_ptr = NULL;
int frame_size;
if (enc->frame_size <= 1) {
- /* specific hack for pcm codecs because no frame size is
- provided */
- switch(enc->codec_id) {
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_S32BE:
- case CODEC_ID_PCM_U32LE:
- case CODEC_ID_PCM_U32BE:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (4 * enc->channels);
- break;
- case CODEC_ID_PCM_S24LE:
- case CODEC_ID_PCM_S24BE:
- case CODEC_ID_PCM_U24LE:
- case CODEC_ID_PCM_U24BE:
- case CODEC_ID_PCM_S24DAUD:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (3 * enc->channels);
- break;
- case CODEC_ID_PCM_S16LE:
- case CODEC_ID_PCM_S16BE:
- case CODEC_ID_PCM_U16LE:
- case CODEC_ID_PCM_U16BE:
- if (enc->channels == 0)
- return -1;
- frame_size = size / (2 * enc->channels);
- break;
- case CODEC_ID_PCM_S8:
- case CODEC_ID_PCM_U8:
- case CODEC_ID_PCM_MULAW:
- case CODEC_ID_PCM_ALAW:
+ int bits_per_sample = av_get_bits_per_sample(enc->codec_id);
+
+ if (bits_per_sample) {
if (enc->channels == 0)
return -1;
- frame_size = size / (enc->channels);
- break;
- default:
+ frame_size = (size << 3) / (bits_per_sample * enc->channels);
+ } else {
/* used for example by ADPCM codecs */
if (enc->bit_rate == 0)
return -1;
frame_size = (size * 8 * enc->sample_rate) / enc->bit_rate;
- break;
}
} else {
frame_size = enc->frame_size;
by knowing the futur */
} else if(pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE || pkt->duration){
if(pkt->pts != AV_NOPTS_VALUE && pkt->duration){
- int64_t old_diff= ABS(st->cur_dts - pkt->duration - pkt->pts);
- int64_t new_diff= ABS(st->cur_dts - pkt->pts);
+ int64_t old_diff= FFABS(st->cur_dts - pkt->duration - pkt->pts);
+ int64_t new_diff= FFABS(st->cur_dts - pkt->pts);
if(old_diff < new_diff && old_diff < (pkt->duration>>3)){
pkt->pts += pkt->duration;
// av_log(NULL, AV_LOG_DEBUG, "id:%d old:%Ld new:%Ld dur:%d cur:%Ld size:%d\n", pkt->stream_index, old_diff, new_diff, pkt->duration, st->cur_dts, pkt->size);
*pkt = s->cur_pkt;
compute_pkt_fields(s, st, NULL, pkt);
s->cur_st = NULL;
- return 0;
+ break;
} else if (s->cur_len > 0 && st->discard < AVDISCARD_ALL) {
len = av_parser_parse(st->parser, st->codec, &pkt->data, &pkt->size,
s->cur_ptr, s->cur_len,
pkt->dts = st->parser->dts;
pkt->destruct = av_destruct_packet_nofree;
compute_pkt_fields(s, st, st->parser, pkt);
- return 0;
+ break;
}
} else {
/* free packet */
}
st = s->streams[s->cur_pkt.stream_index];
+ if(st->codec->debug & FF_DEBUG_PTS)
+ av_log(s, AV_LOG_DEBUG, "av_read_packet stream=%d, pts=%lld, dts=%lld, size=%d\n",
+ s->cur_pkt.stream_index,
+ s->cur_pkt.pts,
+ s->cur_pkt.dts,
+ s->cur_pkt.size);
s->cur_st = st;
s->cur_ptr = s->cur_pkt.data;
}
}
}
+ if(st->codec->debug & FF_DEBUG_PTS)
+ av_log(s, AV_LOG_DEBUG, "av_read_frame_internal stream=%d, pts=%lld, dts=%lld, size=%d\n",
+ pkt->stream_index,
+ pkt->pts,
+ pkt->dts,
+ pkt->size);
+
+ return 0;
}
/**
* @param timestamp new dts expressed in time_base of param ref_st
* @param ref_st reference stream giving time_base of param timestamp
*/
-static void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
+void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
int i;
for(i = 0; i < s->nb_streams; i++) {
* @param timestamp timestamp in the timebase of the given stream
*/
int av_add_index_entry(AVStream *st,
- int64_t pos, int64_t timestamp, int distance, int flags)
+ int64_t pos, int64_t timestamp, int size, int distance, int flags)
{
AVIndexEntry *entries, *ie;
int index;
ie->pos = pos;
ie->timestamp = timestamp;
ie->min_distance= distance;
+ ie->size= size;
ie->flags = flags;
return index;
if (pkt->stream_index == 0 && st->parser &&
(pkt->flags & PKT_FLAG_KEY)) {
av_add_index_entry(st, st->parser->frame_offset, pkt->dts,
- 0, AVINDEX_KEYFRAME);
+ 0, 0, AVINDEX_KEYFRAME);
}
av_free_packet(pkt);
}
pos_limit= pos_max;
}
+ if(ts_min > ts_max){
+ return -1;
+ }else if(ts_min == ts_max){
+ pos_limit= pos_min;
+ }
+
no_change=0;
while (pos_min < pos_limit) {
#ifdef DEBUG_SEEK
}
ic->file_size = file_size;
- if ((ic->iformat == &mpegps_demux || ic->iformat == &mpegts_demux) && file_size && !ic->pb.is_streamed) {
+ if ((!strcmp(ic->iformat->name, "mpeg") ||
+ !strcmp(ic->iformat->name, "mpegts")) &&
+ file_size && !ic->pb.is_streamed) {
/* get accurate estimate from the PTSes */
av_estimate_timings_from_pts(ic);
} else if (av_has_timings(ic)) {
#define MAX_READ_SIZE 5000000
/* maximum duration until we stop analysing the stream */
-#define MAX_STREAM_DURATION ((int)(AV_TIME_BASE * 2.0))
+#define MAX_STREAM_DURATION ((int)(AV_TIME_BASE * 3.0))
/**
* Read the beginning of a media file to get stream information. This
*/
int av_find_stream_info(AVFormatContext *ic)
{
- int i, count, ret, read_size;
+ int i, count, ret, read_size, j;
AVStream *st;
AVPacket pkt1, *pkt;
AVPacketList *pktl=NULL, **ppktl;
if (!has_codec_parameters(st->codec))
break;
/* variable fps and no guess at the real fps */
- if( st->codec->time_base.den >= 1000LL*st->codec->time_base.num
+ if( st->codec->time_base.den >= 101LL*st->codec->time_base.num
&& duration_count[i]<20 && st->codec->codec_type == CODEC_TYPE_VIDEO)
break;
if(st->parser && st->parser->parser->split && !st->codec->extradata)
ret = count;
break;
}
- } else {
- /* we did not get all the codec info, but we read too much data */
- if (read_size >= MAX_READ_SIZE) {
- ret = count;
- break;
- }
+ }
+ /* we did not get all the codec info, but we read too much data */
+ if (read_size >= MAX_READ_SIZE) {
+ ret = count;
+ break;
}
/* NOTE: a new stream can be added there if no header in file
ret = -1; /* we could not have all the codec parameters before EOF */
for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i];
- if (!has_codec_parameters(st->codec))
- break;
+ if (!has_codec_parameters(st->codec)){
+ char buf[256];
+ avcodec_string(buf, sizeof(buf), st->codec, 0);
+ av_log(ic, AV_LOG_INFO, "Could not find codec parameters (%s)\n", buf);
+ } else {
+ ret = 0;
+ }
}
- if (i == ic->nb_streams)
- ret = 0;
break;
}
duration_sum[index]= duration;
duration_count[index]=1;
}else{
- int factor= av_rescale(duration, duration_count[index], duration_sum[index]);
+ int factor= av_rescale(2*duration, duration_count[index], duration_sum[index]);
+ if(factor==3)
+ duration_count[index] *= 2;
+ factor= av_rescale(duration, duration_count[index], duration_sum[index]);
duration_sum[index] += duration;
duration_count[index]+= factor;
}
int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
if(i){
st->codec->extradata_size= i;
- st->codec->extradata= av_malloc(st->codec->extradata_size);
+ st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
+ memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
}
}
if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_sample)
st->codec->codec_tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
- if(duration_count[i] && st->codec->time_base.num*1000LL <= st->codec->time_base.den &&
- st->time_base.num*duration_sum[i]/duration_count[i]*1000LL > st->time_base.den){
- AVRational fps1;
- int64_t num, den;
+ if(duration_count[i]
+ && (st->codec->time_base.num*101LL <= st->codec->time_base.den || st->codec->codec_id == CODEC_ID_MPEG2VIDEO) &&
+ //FIXME we should not special case mpeg2, but this needs testing with non mpeg2 ...
+ st->time_base.num*duration_sum[i]/duration_count[i]*101LL > st->time_base.den){
+ int64_t num, den, error, best_error;
num= st->time_base.den*duration_count[i];
den= st->time_base.num*duration_sum[i];
- av_reduce(&fps1.num, &fps1.den, num*1001, den*1000, FFMAX(st->time_base.den, st->time_base.num)/4);
- av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, den, FFMAX(st->time_base.den, st->time_base.num)/4);
- if(fps1.num < st->r_frame_rate.num && fps1.den == 1 && (fps1.num==24 || fps1.num==30)){ //FIXME better decission
- st->r_frame_rate.num= fps1.num*1000;
- st->r_frame_rate.den= fps1.den*1001;
+ best_error= INT64_MAX;
+ for(j=1; j<60*12; j++){
+ error= FFABS(1001*12*num - 1001*j*den);
+ if(error < best_error){
+ best_error= error;
+ av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, j, 12, INT_MAX);
+ }
}
- }
-
- /* set real frame rate info */
- /* compute the real frame rate for telecine */
- if ((st->codec->codec_id == CODEC_ID_MPEG1VIDEO ||
- st->codec->codec_id == CODEC_ID_MPEG2VIDEO) &&
- st->codec->sub_id == 2) {
- if (st->codec_info_nb_frames >= 20) {
- float coded_frame_rate, est_frame_rate;
- est_frame_rate = ((double)st->codec_info_nb_frames * AV_TIME_BASE) /
- (double)st->codec_info_duration ;
- coded_frame_rate = 1.0/av_q2d(st->codec->time_base);
-#if 0
- printf("telecine: coded_frame_rate=%0.3f est_frame_rate=%0.3f\n",
- coded_frame_rate, est_frame_rate);
-#endif
- /* if we detect that it could be a telecine, we
- signal it. It would be better to do it at a
- higher level as it can change in a film */
- if (coded_frame_rate >= 24.97 &&
- (est_frame_rate >= 23.5 && est_frame_rate < 24.5)) {
- st->r_frame_rate = (AVRational){24000, 1001};
+ for(j=0; j<3; j++){
+ static const int ticks[]= {24,30,60};
+ error= FFABS(1001*12*num - 1000*12*den * ticks[j]);
+ if(error < best_error){
+ best_error= error;
+ av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, ticks[j]*1000, 1001, INT_MAX);
}
}
}
- /* if no real frame rate, use the codec one */
+
if (!st->r_frame_rate.num){
- st->r_frame_rate.num = st->codec->time_base.den;
- st->r_frame_rate.den = st->codec->time_base.num;
+ if( st->codec->time_base.den * (int64_t)st->time_base.num
+ <= st->codec->time_base.num * (int64_t)st->time_base.den){
+ st->r_frame_rate.num = st->codec->time_base.den;
+ st->r_frame_rate.den = st->codec->time_base.num;
+ }else{
+ st->r_frame_rate.num = st->time_base.den;
+ st->r_frame_rate.den = st->time_base.num;
+ }
}
}
}
av_parser_close(st->parser);
}
av_free(st->index_entries);
+ av_free(st->codec->extradata);
av_free(st->codec);
av_free(st);
}
AVStream *av_new_stream(AVFormatContext *s, int id)
{
AVStream *st;
+ int i;
if (s->nb_streams >= MAX_STREAMS)
return NULL;
/* default pts settings is MPEG like */
av_set_pts_info(st, 33, 1, 90000);
st->last_IP_pts = AV_NOPTS_VALUE;
+ for(i=0; i<MAX_REORDER_DELAY+1; i++)
+ st->pts_buffer[i]= AV_NOPTS_VALUE;
s->streams[s->nb_streams++] = st;
return st;
//FIXME merge with compute_pkt_fields
static int compute_pkt_fields2(AVStream *st, AVPacket *pkt){
- int b_frames = FFMAX(st->codec->has_b_frames, st->codec->max_b_frames);
- int num, den, frame_size;
+ int delay = FFMAX(st->codec->has_b_frames, !!st->codec->max_b_frames);
+ int num, den, frame_size, i;
-// av_log(NULL, AV_LOG_DEBUG, "av_write_frame: pts:%lld dts:%lld cur_dts:%lld b:%d size:%d st:%d\n", pkt->pts, pkt->dts, st->cur_dts, b_frames, pkt->size, pkt->stream_index);
+// av_log(NULL, AV_LOG_DEBUG, "av_write_frame: pts:%lld dts:%lld cur_dts:%lld b:%d size:%d st:%d\n", pkt->pts, pkt->dts, st->cur_dts, delay, pkt->size, pkt->stream_index);
/* if(pkt->pts == AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE)
return -1;*/
}
//XXX/FIXME this is a temporary hack until all encoders output pts
- if((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !b_frames){
+ if((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !delay){
pkt->dts=
// pkt->pts= st->cur_dts;
pkt->pts= st->pts.val;
//calculate dts from pts
if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE){
- if(b_frames){
- if(st->last_IP_pts == AV_NOPTS_VALUE){
- st->last_IP_pts= -pkt->duration;
- }
- if(st->last_IP_pts < pkt->pts){
- pkt->dts= st->last_IP_pts;
- st->last_IP_pts= pkt->pts;
- }else
- pkt->dts= pkt->pts;
- }else
- pkt->dts= pkt->pts;
+ st->pts_buffer[0]= pkt->pts;
+ for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
+ st->pts_buffer[i]= (i-delay-1) * pkt->duration;
+ for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
+ SWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
+
+ pkt->dts= st->pts_buffer[0];
}
if(st->cur_dts && st->cur_dts != AV_NOPTS_VALUE && st->cur_dts >= pkt->dts){
int ret;
ret=compute_pkt_fields2(s->streams[pkt->stream_index], pkt);
- if(ret<0)
+ if(ret<0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
return ret;
truncate_ts(s->streams[pkt->stream_index], pkt);
}
/**
- * interleave_packet implementation which will interleave per DTS.
- * packets with pkt->destruct == av_destruct_packet will be freed inside this function.
- * so they cannot be used after it, note calling av_free_packet() on them is still safe
+ * Interleave a packet per DTS in an output media file.
+ *
+ * Packets with pkt->destruct == av_destruct_packet will be freed inside this function,
+ * so they cannot be used after it, note calling av_free_packet() on them is still safe.
+ *
+ * @param s media file handle
+ * @param out the interleaved packet will be output here
+ * @param in the input packet
+ * @param flush 1 if no further packets are available as input and all
+ * remaining packets should be output
+ * @return 1 if a packet was output, 0 if no packet could be output,
+ * < 0 if an error occured
*/
-static int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
+int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
AVPacketList *pktl, **next_point, *this_pktl;
int stream_count=0;
int streams[MAX_STREAMS];
return 0;
//av_log(NULL, AV_LOG_DEBUG, "av_interleaved_write_frame %d %Ld %Ld\n", pkt->size, pkt->dts, pkt->pts);
- if(compute_pkt_fields2(st, pkt) < 0)
+ if(compute_pkt_fields2(st, pkt) < 0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
return -1;
if(pkt->dts == AV_NOPTS_VALUE)
av_log(NULL, AV_LOG_INFO, "(%s)", st->language);
}
av_log(NULL, AV_LOG_DEBUG, ", %d/%d", st->time_base.num/g, st->time_base.den/g);
+ av_log(NULL, AV_LOG_INFO, ": %s", buf);
if(st->codec->codec_type == CODEC_TYPE_VIDEO){
if(st->r_frame_rate.den && st->r_frame_rate.num)
av_log(NULL, AV_LOG_INFO, ", %5.2f fps(r)", av_q2d(st->r_frame_rate));
else
av_log(NULL, AV_LOG_INFO, ", %5.2f fps(c)", 1/av_q2d(st->codec->time_base));
}
- av_log(NULL, AV_LOG_INFO, ": %s\n", buf);
+ av_log(NULL, AV_LOG_INFO, "\n");
}
}
/* First, we check our abbreviation table */
for (i = 0; i < sizeof(frame_abvs)/sizeof(*frame_abvs); ++i)
if (!strcmp(frame_abvs[i].abv, arg)) {
- *frame_rate = frame_abvs[i].frame_rate;
- *frame_rate_base = frame_abvs[i].frame_rate_base;
- return 0;
- }
+ *frame_rate = frame_abvs[i].frame_rate;
+ *frame_rate_base = frame_abvs[i].frame_rate_base;
+ return 0;
+ }
/* Then, we try to parse it as fraction */
cp = strchr(arg, '/');
cp = strchr(arg, ':');
if (cp) {
char* cpp;
- *frame_rate = strtol(arg, &cpp, 10);
- if (cpp != arg || cpp == cp)
- *frame_rate_base = strtol(cp+1, &cpp, 10);
- else
- *frame_rate = 0;
+ *frame_rate = strtol(arg, &cpp, 10);
+ if (cpp != arg || cpp == cp)
+ *frame_rate_base = strtol(cp+1, &cpp, 10);
+ else
+ *frame_rate = 0;
}
else {
/* Finally we give up and parse it as double */
- *frame_rate_base = DEFAULT_FRAME_RATE_BASE; //FIXME use av_d2q()
- *frame_rate = (int)(strtod(arg, 0) * (*frame_rate_base) + 0.5);
+ AVRational time_base = av_d2q(strtod(arg, 0), DEFAULT_FRAME_RATE_BASE);
+ *frame_rate_base = time_base.den;
+ *frame_rate = time_base.num;
}
if (!*frame_rate || !*frame_rate_base)
return -1;
* S+[.m...]
* @endcode
*/
+#ifndef CONFIG_WINCE
int64_t parse_date(const char *datestr, int duration)
{
const char *p;
}
}
} else {
- if (p[0] == '-') {
- negative = 1;
- ++p;
- }
+ if (p[0] == '-') {
+ negative = 1;
+ ++p;
+ }
q = small_strptime(p, time_fmt[0], &dt);
if (!q) {
dt.tm_sec = strtol(p, (char **)&q, 10);
}
return negative ? -t : t;
}
+#endif /* CONFIG_WINCE */
/**
* Attempts to find a specific tag in a URL.
/**
* Returns in 'buf' the path with '%d' replaced by number.
- *
+
* Also handles the '%0nd' format where 'n' is the total number
- * of digits and '%%'. Return 0 if OK, and -1 if format error.
+ * of digits and '%%'.
+ *
+ * @param buf destination buffer
+ * @param buf_size destination buffer size
+ * @param path numbered sequence string
+ * @number frame number
+ * @return 0 if OK, -1 if format error.
*/
-int get_frame_filename(char *buf, int buf_size,
- const char *path, int number)
+int av_get_frame_filename(char *buf, int buf_size,
+ const char *path, int number)
{
const char *p;
char *q, buf1[20], c;
* @param num must be >= 0
* @param den must be >= 1
*/
-void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
{
num += (den >> 1);
if (num >= den) {
/**
* Set f to (val + 0.5).
*/
-void av_frac_set(AVFrac *f, int64_t val)
+static void av_frac_set(AVFrac *f, int64_t val)
{
f->val = val;
f->num = f->den >> 1;
* @param f fractional number
* @param incr increment, can be positive or negative
*/
-void av_frac_add(AVFrac *f, int64_t incr)
+static void av_frac_add(AVFrac *f, int64_t incr)
{
int64_t num, den;
AVImageFormat *fmt,
int (*alloc_cb)(void *, AVImageInfo *info), void *opaque)
{
- char buf[PROBE_BUF_SIZE];
+ uint8_t buf[PROBE_BUF_MIN];
AVProbeData probe_data, *pd = &probe_data;
offset_t pos;
int ret;
pd->filename = filename;
pd->buf = buf;
pos = url_ftell(pb);
- pd->buf_size = get_buffer(pb, buf, PROBE_BUF_SIZE);
+ pd->buf_size = get_buffer(pb, buf, PROBE_BUF_MIN);
url_fseek(pb, pos, SEEK_SET);
fmt = av_probe_image_format(pd);
}
projects / ffmpeg / blobdiff