From fec4a2d232d7ebf6d1084fb568d4d84844f25abc Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 6 Feb 2021 18:22:55 +0100 Subject: [PATCH] avformat/mov: Support size = 1 and size = 0 special cases in probing Signed-off-by: Michael Niedermayer --- libavformat/mov.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index dfe9be40a9b..c3aa114a789 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -7117,6 +7117,11 @@ static int mov_probe(const AVProbeData *p) if ((offset + 8) > (unsigned int)p->buf_size) break; size = AV_RB32(p->buf + offset); + if (size == 1 && offset + 16 > (unsigned int)p->buf_size) { + size = AV_RB64(p->buf+offset + 8); + } else if (size == 0) { + size = p->buf_size - offset; + } tag = AV_RL32(p->buf + offset + 4); switch(tag) { /* check for obvious tags */ -- 2.39.2