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| author | Mina Nagy Zaki <mnzaki@gmail.com> | 2011-06-08 19:24:25 +0300 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-06-10 13:04:47 +0200 |
| commit | 79a0ec1af4817bb7b989803b9f460d1e4acaf7b7 (patch) | |
| tree | 5d8befa764836cdb38d77670310f35108d1b6a04 | |
| parent | 989184fea4854720caef35347992499ba8033195 (diff) | |
| download | ffmpeg-streaming-79a0ec1af4817bb7b989803b9f460d1e4acaf7b7.zip ffmpeg-streaming-79a0ec1af4817bb7b989803b9f460d1e4acaf7b7.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.
| -rw-r--r-- | libavfilter/formats.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavfilter/formats.c b/libavfilter/formats.c index ec7fca3..58593fc 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -44,6 +44,8 @@ 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 */ |
