From d467e7df1a74b74eaea27434b1c4de17518f400f Mon Sep 17 00:00:00 2001 From: "Reynaldo H. Verdejo Pinochet" Date: Thu, 23 Jan 2014 16:03:09 -0300 Subject: [PATCH] libavformat/mtv: donwgrade probe score for < 512 MTV has a 512 bytes header. We should be able to parse required fiels from the first 57 (rest is padding) but if we haven't seen enough data then go with SCORE_EXTENSION. Signed-off-by: Reynaldo H. Verdejo Pinochet --- libavformat/mtv.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavformat/mtv.c b/libavformat/mtv.c index 5e638cacec..0ce3f8e6d8 100644 --- a/libavformat/mtv.c +++ b/libavformat/mtv.c @@ -78,6 +78,13 @@ static int mtv_probe(AVProbeData *p) if(p->buf[51] != 16) return AVPROBE_SCORE_EXTENSION / 2; // But we are going to assume 16bpp anyway .. + /* We had enough data to parse header values + * but we expect to be able to get 512 bytes + * of header to be sure. + */ + if (p->buf_size < MTV_HEADER_SIZE) + return AVPROBE_SCORE_EXTENSION; + return AVPROBE_SCORE_MAX; }