Audio IOPlugins for MP4/MKV container

Hi,

I'm trying to write an audio IOPlugin and the result be encapsulated in MP4 or MKV, however, despite specifying "mkv" and "mp4" in the pIOPropContainerList .

It works for mov and also or a "dummy container" I tested as well, but not for mp4/mkv (which obviously I'd like to use especially to be able to leave the video as hw accelerated h264 for instance).

Cheers,

Sylvain

Actually even for MOV, even though it does show up in the list, if I select it, it seems to be disregarded and only PCM will be put into the output file.