@tab Used in Origin's Wing Commander IV AVI files.
@item DSP Group TrueSpeech @tab @tab X
@item DV audio @tab @tab X
-@item Enhanced AC-3 @tab @tab X
+@item Enhanced AC-3 @tab X @tab X
@item FLAC (Free Lossless Audio Codec) @tab X @tab IX
@item GSM @tab E @tab X
@tab encoding supported through external library libgsm