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avfilter: allow freeing NULL.

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this way avfilter_free() can be called without NULL checks.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer
2012-03-31 08:48:23 +02:00
parent a79af8e8cb
commit c5f9a66f74
1 changed files with 3 additions and 0 deletions
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3
libavfilter/avfilter.c
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@@ -834,6 +834,9 @@ void avfilter_free(AVFilterContext *filter)
int i;
AVFilterLink *link;
if (!filter)
return;
if (filter->filter->uninit)
filter->filter->uninit(filter);