diff --git a/doc/demuxers.texi b/doc/demuxers.texi
index b78cf680ef75df88a4e1650c1dcab4d6306a022d..36292b895f2ab8e471bb3f310d929a329fe91572 100644
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@@ -88,4 +88,15 @@ the caller can decide which variant streams to actually receive.
 The total bitrate of the variant that the stream belongs to is
 available in a metadata key named "variant_bitrate".
 
+@section flv
+
+Adobe Flash Video Format demuxer.
+
+This demuxer is used to demux FLV files and RTMP network streams.
+
+@table @option
+@item -flv_demuxer @var{bool}
+Allocate the streams according to the onMetaData array content.
+@end table
+
 @c man end INPUT DEVICES