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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-08-02 04:16:02 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-08-02 04:16:02 +0200 |
| commit | 98e42a249e7891d295228ff19892450ba1f09092 (patch) | |
| tree | 2f3587eb1e9199d5185f8f3a9e182f5fdd3cf1b4 /libavformat/format.c | |
| parent | 26ffa8eaee2d3279b305dd7b0a82eafe28d3c856 (diff) | |
avformat/format: Check for av_guess_format() failure
Fixes null pointer dereference
Fixes Ticket3812
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/format.c')
| -rw-r--r-- | libavformat/format.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/format.c b/libavformat/format.c index 238a13acd4..1c25d6b933 100644 --- a/libavformat/format.c +++ b/libavformat/format.c @@ -145,7 +145,9 @@ enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name, enum AVMediaType type) { if (av_match_name("segment", fmt->name) || av_match_name("ssegment", fmt->name)) { - fmt = av_guess_format(NULL, filename, NULL); + AVOutputFormat *fmt2 = av_guess_format(NULL, filename, NULL); + if (fmt2) + fmt = fmt2; } if (type == AVMEDIA_TYPE_VIDEO) { |