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avutil: add AVERROR_UNKNOWN

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Useful to return instead of -1 when the cause of the error is unknown,
typically from an external library.
(cherry picked from commit c9bca80132)

Conflicts:

	doc/APIchanges
	libavutil/avutil.h

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This commit is contained in:
Justin Ruggles
2012-02-24 23:27:14 -05:00
committed by Reinhard Tartler
parent 750f5baf30
commit 7f3f85544c
4 changed files with 6 additions and 1 deletions
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libavutil/error.h
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@@ -58,6 +58,7 @@
#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
#define AVERROR_STREAM_NOT_FOUND (-MKTAG(0xF8,'S','T','R')) ///< Stream not found
#define AVERROR_BUG (-MKTAG( 'B','U','G',' ')) ///< Bug detected, please report the issue
#define AVERROR_UNKNOWN (-MKTAG( 'U','N','K','N')) ///< Unknown error, typically from an external library
/**
* Put a description of the AVERROR code errnum in errbuf.