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skip INDX chunks

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Originally committed as revision 3796 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-01-03 02:52:11 +00:00
parent 7c054ea7e2
commit 119cebf429
1 changed files with 15 additions and 6 deletions
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21
libavformat/rm.c
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@ -731,6 +731,7 @@ static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_
ByteIOContext *pb = &s->pb;
int len, num, res, i;
AVStream *st;
uint32_t state=0xFFFFFFFF;
while(!url_feof(pb)){
*pos= url_ftell(pb);
@ -740,13 +741,20 @@ static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_
*timestamp = AV_NOPTS_VALUE;
*flags= 0;
}else{
if(get_byte(pb))
continue;
if(get_byte(pb))
continue;
len = get_be16(pb);
if (len < 12)
state= (state<<8) + get_byte(pb);
if(state == MKBETAG('I', 'N', 'D', 'X')){
len = get_be16(pb) - 6;
if(len<0)
continue;
goto skip;
}
if(state > (unsigned)0xFFFF || state < 12)
continue;
len=state;
state= 0xFFFFFFFF;
num = get_be16(pb);
*timestamp = get_be32(pb);
res= get_byte(pb); /* reserved */
@ -761,6 +769,7 @@ static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_
break;
}
if (i == s->nb_streams) {
skip:
/* skip packet if unknown number */
url_fskip(pb, len);
rm->remaining_len -= len;