diff options
| author | Mina Nagy Zaki <mnzaki@gmail.com> | 2011-06-08 19:24:25 +0300 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-10-06 08:43:43 +0200 |
| commit | e5f4e249422834f727bcd432b73af971277f1371 (patch) | |
| tree | 8350e09ea43d49623fee5d2bd78c523d70b6508c | |
| parent | b1ad5a21da7ac56b853b6a21ed08a075ecbb89c6 (diff) | |
| download | ffmpeg-e5f4e249422834f727bcd432b73af971277f1371.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>
| -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 8c5041a8fe..7eca639489 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -45,6 +45,9 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b) AVFilterFormats *ret; unsigned i, j, k = 0, m_count; + if (a == b) + return a; + ret = av_mallocz(sizeof(AVFilterFormats)); /* merge list of formats */ |