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avformat/aviobuf: Honor avio_open[2] documentation

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The documentation of both avio_open() as well as avio_open2() states
that on failure, the pointer to an AVIOContext given to this function
(via a pointer to a pointer to an AVIOContext) will be set to NULL. Yet
it didn't happen upon failure of ffurl_open_whitelist() or when allocating
the internal buffer failed. This commit changes this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andreas Rheinhardt 2020-01-06 15:51:49 +01:00 committed by Michael Niedermayer
parent 10f0332fd5
commit 220846f74f
1 changed files with 2 additions and 0 deletions
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libavformat/aviobuf.c
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@ -1197,6 +1197,8 @@ int ffio_open_whitelist(AVIOContext **s, const char *filename, int flags,
URLContext *h;
int err;
*s = NULL;
err = ffurl_open_whitelist(&h, filename, flags, int_cb, options, whitelist, blacklist, NULL);
if (err < 0)
return err;