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authorReimar Döffinger <Reimar.Doeffinger@gmx.de>2009-09-17 18:09:20 +0000
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>2009-09-17 18:09:20 +0000
commit5abfae79ca6fbcbec559f4743e1d8c07a4d91518 (patch)
treeea0aeed6fd292295135a62f32debc7666b4fef22 /libavformat/siff.c
parent3214db98ea1c71f6e6bb67adf077c695ac572692 (diff)
Improve SIFF probe by also checking the first tag is one of the expected.
Originally committed as revision 19898 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/siff.c')
-rw-r--r--libavformat/siff.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/libavformat/siff.c b/libavformat/siff.c
index 63fc0d6fac..1194f71bf6 100644
--- a/libavformat/siff.c
+++ b/libavformat/siff.c
@@ -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)