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-rw-r--r--libavutil/error.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavutil/error.h b/libavutil/error.h
index 2db65cb83f..11bcc5c4c4 100644
--- a/libavutil/error.h
+++ b/libavutil/error.h
@@ -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.