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authorJanne Grunau <janne-libav@jannau.net>2012-09-07 16:27:21 +0200
committerJanne Grunau <janne-libav@jannau.net>2012-09-20 14:50:06 +0200
commit6746cd7f61964f94f949606f839598861472dcff (patch)
treeb228217a9c575da0a1e8836580716b8b79fec801 /libavformat/utils.c
parenta34a609fc1c21f6ab07ce0469e38c76a2ae077d1 (diff)
lavf probe: prevent codec probe with no data at all seen
This occurs with fuzzed mpeg-ts files. set_codec_from_probe_data() is called with a zeroed AVProbeData since no packet made through for specific stream.
Diffstat (limited to 'libavformat/utils.c')
-rw-r--r--libavformat/utils.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index e4e4a8b445..64be7c8700 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -625,6 +625,11 @@ static void probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
} else {
st->probe_packets = 0;
+ if (!pd->buf_size) {
+ av_log(s, AV_LOG_ERROR, "nothing to probe for stream %d\n",
+ st->index);
+ return;
+ }
}
if (!st->probe_packets ||