Traneptora/FFmpeg
1
Fork 0
forked from FFmpeg/FFmpeg
Code Pull requests Activity

extract duration if available

Browse source 
Originally committed as revision 4459 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-07-19 14:26:41 +00:00
parent 2e8f2c20c9
commit dd9f59160e
1 changed files with 47 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

54
libavformat/flvdec.c
View file

@ -58,7 +58,7 @@ static int flv_read_header(AVFormatContext *s,
static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int ret, i, type, size, pts, flags, is_audio;
int ret, i, type, size, pts, flags, is_audio, next;
AVStream *st = NULL;
for(;;){
@ -74,19 +74,59 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
if(size == 0)
continue;
next= size + url_ftell(&s->pb);
if (type == 8) {
is_audio=1;
flags = get_byte(&s->pb);
size--;
} else if (type == 9) {
is_audio=0;
flags = get_byte(&s->pb);
size--;
} else if (type == 18 && size > 13+1+4) {
url_fskip(&s->pb, 13); //onMetaData blah
if(get_byte(&s->pb) == 8){
url_fskip(&s->pb, 4);
}
while(url_ftell(&s->pb) + 5 < next){
char tmp[128];
int type, len;
double d= 0;
len= get_be16(&s->pb);
if(len >= sizeof(tmp) || !len)
break;
get_buffer(&s->pb, tmp, len);
tmp[len]=0;
type= get_byte(&s->pb);
if(type==0){
d= av_int2dbl(get_be64(&s->pb));
}else if(type==2){
len= get_be16(&s->pb);
if(len >= sizeof(tmp))
break;
url_fskip(&s->pb, len);
}else if(type==8){
//array
break;
}else if(type==11){
d= av_int2dbl(get_be64(&s->pb));
get_be16(&s->pb);
}
if(!strcmp(tmp, "duration")){
s->duration = d*AV_TIME_BASE;
}else if(!strcmp(tmp, "videodatarate")){
}else if(!strcmp(tmp, "audiodatarate")){
}
}
url_fseek(&s->pb, next, SEEK_SET);
continue;
} else {
/* skip packet */
av_log(s, AV_LOG_ERROR, "skipping flv packet: type %d, size %d, flags %d\n", type, size, flags);
url_fskip(&s->pb, size);
url_fseek(&s->pb, next, SEEK_SET);
continue;
}
@ -109,7 +149,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
||(st->discard >= AVDISCARD_BIDIR && ((flags >> 4)==3 && !is_audio))
|| st->discard >= AVDISCARD_ALL
){
url_fskip(&s->pb, size);
url_fseek(&s->pb, next, SEEK_SET);
continue;
}
break;
@ -147,7 +187,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
}
}
ret= av_get_packet(&s->pb, pkt, size);
ret= av_get_packet(&s->pb, pkt, size - 1);
if (ret <= 0) {
return AVERROR_IO;
}