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Revert "lavfi/avfiltergraph: add check before free the format"

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This reverts commit f156f4ab23.

The checks added by said commit are nonsense because they did not help
in case ff_merge_samplerates() or ff_merge_formats() returned NULL
while freeing one of its arguments: Said freeing does not change
the local variables of can_merge_formats().

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-08-07 04:28:07 +02:00
parent 9d1bf9cffe
commit c4c10feaa8
1 changed files with 2 additions and 4 deletions
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6
libavfilter/avfiltergraph.c
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@ -419,10 +419,8 @@ static int can_merge_formats(AVFilterFormats *a_arg,
av_freep(&ret);
return 1;
} else {
if (a)
av_freep(&a->formats);
if (b)
av_freep(&b->formats);
av_freep(&a->formats);
av_freep(&b->formats);
av_freep(&a);
av_freep(&b);
return 0;