@@ -57,6 +57,39 @@ fragmentation or muxer overhead depending on your source. Default value is

 @end table

+@anchor{avi}

+@section avi

+

+Audio Video Interleaved muxer.

+

+@subsection Options

+

+It accepts the following options:

+

+@table @option

+@item reserve_index_space

+Reserve the specified amount of bytes for the OpenDML master index of each

+stream within the file header. By default additional master indexes are

+embedded within the data packets if there is no space left in the first master

+index and are linked together as a chain of indexes. This index structure can

+cause problems for some use cases, e.g. third-party software strictly relying

+on the OpenDML index specification or when file seeking is slow. Reserving

+enough index space in the file header avoids these problems.

+

+The required index space depends on the output file size and should be about 16

+bytes per gigabyte. When this option is omitted or set to zero the necessary

+index space is guessed.

+

+@item write_channel_mask

+Write the channel layout mask into the audio stream header.

+

+This option is enabled by default. Disabling the channel mask can be useful in

+specific scenarios, e.g. when merging multiple audio streams into one for

+compatibility with software that only supports a single audio stream in AVI

+(see @ref{amerge,,the "amerge" section in the ffmpeg-filters manual,ffmpeg-filters}).

+

+@end table

+

 @anchor{chromaprint}

 @section chromaprint