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match SDP based on content instead of extension

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Originally committed as revision 1255 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2002-11-20 14:54:13 +00:00
parent 5d3cea3a86
commit cb1fdc6104
1 changed files with 15 additions and 5 deletions
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20
libav/rtsp.c
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@ -984,12 +984,22 @@ static AVInputFormat rtsp_demux = {
.flags = AVFMT_NOFILE,
};
/* XXX: add mime type support */
static int sdp_probe(AVProbeData *p)
static int sdp_probe(AVProbeData *p1)
{
if (match_ext(p->filename, "sdp"))
return AVPROBE_SCORE_MAX;
const char *p;
/* we look for a line beginning "c=IN IP4" */
p = p1->buf;
while (*p != '\0') {
if (strstart(p, "c=IN IP4", NULL))
return AVPROBE_SCORE_MAX / 2;
p = strchr(p, '\n');
if (!p)
break;
p++;
if (*p == '\r')
p++;
}
return 0;
}