ffmpeg | branch: master | Anton Khirnov <an...@khirnov.net> | Tue Jul 23 
15:11:08 2024 +0200| [d1fa39d08d3bce9c268cd02cb3c45a76e63b6ff4] | committer: 
Anton Khirnov

fftools/ffmpeg: prefer real errors over EOF in err_merge()

Fixes an issue in 6.1 when reading a corrupted file with -xerror would
exit with success. This specific issue is not present in master, but
this should generally be a more robust behaviour.

Reported-by: Andrej Peterka

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d1fa39d08d3bce9c268cd02cb3c45a76e63b6ff4
---

 fftools/ffmpeg_utils.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fftools/ffmpeg_utils.h b/fftools/ffmpeg_utils.h
index bd225abc38..7939e44cdc 100644
--- a/fftools/ffmpeg_utils.h
+++ b/fftools/ffmpeg_utils.h
@@ -35,11 +35,12 @@ typedef struct Timestamp {
 /**
  * Merge two return codes - return one of the error codes if at least one of
  * them was negative, 0 otherwise.
- * Currently just picks the first one, eventually we might want to do something
- * more sophisticated, like sorting them by priority.
  */
 static inline int err_merge(int err0, int err1)
 {
+    // prefer "real" errors over EOF
+    if ((err0 >= 0 || err0 == AVERROR_EOF) && err1 < 0)
+        return err1;
     return (err0 < 0) ? err0 : FFMIN(err1, 0);
 }
 

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