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lavf: allow avformat_close_input() with NULL

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This is consistent with how other destructors behave.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
wm4
2017-07-16 12:43:09 +02:00
committed by Anton Khirnov
parent 9b9285bbf1
commit 2b1324bd16
1 changed files with 6 additions and 1 deletions
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7
libavformat/utils.c
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@@ -2733,7 +2733,12 @@ void avformat_free_context(AVFormatContext *s)
void avformat_close_input(AVFormatContext **ps) void avformat_close_input(AVFormatContext **ps)
{ {
AVFormatContext *s = *ps; AVFormatContext *s = *ps;
AVIOContext *pb = s->pb; AVIOContext *pb;
if (!*ps)
return;
pb = s->pb;
if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) || if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
(s->flags & AVFMT_FLAG_CUSTOM_IO)) (s->flags & AVFMT_FLAG_CUSTOM_IO))