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| author | Mina Nagy Zaki <mnzaki@gmail.com> | 2011-06-08 19:24:25 +0300 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-10-06 09:47:21 +0200 |
| commit | a4e277312cacfb78ef7583ed0b4fe4ccf5a0bcb1 (patch) | |
| tree | b2a49f7a1f0b231909db6abe856eb18df9deb5ae | |
| parent | c82ae85a8a78a98f7c7fea68d24a4ac0ca74d01f (diff) | |
| download | ffmpeg-a4e277312cacfb78ef7583ed0b4fe4ccf5a0bcb1.tar.gz | |
lavfi: avfilter_merge_formats: handle case where inputs are same
This fixes a double-free crash if lists are the same due to the two
merge_ref() calls at the end of the (useless) merging that happens.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 11b6a82412bcd372adf694a26d83b07d337e1325)
Conflicts:
libavfilter/formats.c
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit e5f4e249422834f727bcd432b73af971277f1371)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit b6c5848a1f8fc2755ea70d325acaddae9fac45ab)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -rw-r--r-- | libavfilter/formats.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavfilter/formats.c b/libavfilter/formats.c index 2a9bdb0bd0..8b8bf75962 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -44,6 +44,9 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b) AVFilterFormats *ret; unsigned i, j, k = 0; + if (a == b) + return a; + ret = av_mallocz(sizeof(AVFilterFormats)); /* merge list of formats */ |