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Improve SIFF probe by also checking the first tag is one of the expected.

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Originally committed as revision 19898 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-09-17 18:09:20 +00:00
parent 3214db98ea
commit 5abfae79ca
1 changed files with 4 additions and 3 deletions
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7
libavformat/siff.c
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@ -60,11 +60,12 @@ typedef struct SIFFContext{
static int siff_probe(AVProbeData *p)
{
uint32_t tag = AV_RL32(p->buf + 8);
/* check file header */
if (AV_RL32(p->buf) == TAG_SIFF)
return AVPROBE_SCORE_MAX;
else
if (AV_RL32(p->buf) != TAG_SIFF ||
(tag != TAG_VBV1 && tag != TAG_SOUN))
return 0;
return AVPROBE_SCORE_MAX;
}
static int create_audio_stream(AVFormatContext *s, SIFFContext *c)