avconv: buffer the packets written while the muxer is not initialized

1 files changed, 9 insertions, 0 deletions

diff --git a/doc/avconv.texi b/doc/avconv.texi
index cdfef55478..9f2f295bd0 100644
--- a/doc/avconv.texi
+++ b/doc/avconv.texi
@@ -956,6 +956,15 @@ This option enables or disables accurate seeking in input files with the
 transcoding. Use @option{-noaccurate_seek} to disable it, which may be useful
 e.g. when copying some streams and transcoding the others.
 
+@item -max_muxing_queue_size @var{packets} (@emph{output,per-stream})
+When transcoding audio and/or video streams, avconv will not begin writing into
+the output until it has one packet for each such stream. While waiting for that
+to happen, packets for other streams are buffered. This option sets the size of
+this buffer, in packets, for the matching output stream.
+
+The default value of this option should be high enough for most uses, so only
+touch this option if you are sure that you need it.
+
 @end table
 @c man end OPTIONS