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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 40e54f1edc..76688c7b69 100644
--- a/libavutil/error.h
+++ b/libavutil/error.h
@@ -64,6 +64,7 @@
* it has been introduced in Libav after our AVERROR_BUG and with a modified value.
*/
#define AVERROR_BUG2 (-MKTAG( 'B','U','G',' '))
+#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.