[Mlt-devel] Broken v4l with recent FFmpeg [PATCH]

[j-b-m <j-...@us...>]

Hi!

The recent changes in MLT to use the new FFmpeg API broke v4l capture with 
libavformat > 52.

The patch below fixes v4l capture with current FFmpeg's git version.

regards
jb


diff --git a/src/modules/avformat/producer_avformat.c 
b/src/modules/avformat/producer_avformat.c
index e1f88de..c659dc7 100644
--- a/src/modules/avformat/producer_avformat.c
+++ b/src/modules/avformat/producer_avformat.c
@@ -562,7 +562,7 @@ static int producer_open( producer_avformat self, 
mlt_profile profile, char *fil
 
        // Only if there is not a protocol specification that avformat can 
handle
 #if LIBAVFORMAT_VERSION_MAJOR > 52
-       if ( mrl && !avio_check( file, 0 ) )
+       if ( mrl && avio_check( file, 0 ) < 0 )
 #else
        if ( mrl && !url_exist( file ) )
 #endif