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lavf: fall back to a more meaningful log instance name

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An uninitialized AVFormatContext instance with neither iformat nor
oformat set will currently log as 'NULL', which is confusing and
unhelpful. Print 'AVFormatContext' instead, which provides more
information.

This happens e.g. if choosing an output format fails in
avformat_alloc_output_context2().

E.g. with the following commandline:
 ffmpeg -i <input> -f foobar -y /dev/null
before: [NULL @ 0x5580377834c0] Requested output format 'foobar' is not a suitable output format
after:  [AVFormatContext @ 0x55fa15bb34c0] Requested output format 'foobar' is not a suitable output format
This commit is contained in:
Anton Khirnov 2023-03-30 11:20:48 +02:00
parent 97c95961f0
commit dffb058f3b
1 changed files with 1 additions and 1 deletions
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2
libavformat/options.c
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@ -44,7 +44,7 @@ static const char* format_to_name(void* ptr)
AVFormatContext* fc = (AVFormatContext*) ptr;
if(fc->iformat) return fc->iformat->name;
else if(fc->oformat) return fc->oformat->name;
else return "NULL";
else return fc->av_class->class_name;
}
static void *format_child_next(void *obj, void *prev)