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List:       linux1394-devel
Subject:    Re: [PATCH 5/8] add MIDI interface
From:       Clemens Ladisch <clemens () ladisch ! de>
Date:       2013-06-03 11:18:37
Message-ID: 51AC7B8D.5070806 () ladisch ! de
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o-takashi@sakamocchi.jp wrote:
> + * [MIDI stream side]
> + *  1.When no stream in both direction is started, start stream with 48000
> + *  2.When stream in opposite direction is started, start stream with the same
> + *    sampling rate.
> + *  3.When stream in the same direction has PCM stream and request to stop MIDI
> + *    stream, don't stop stream itself.
> + * [PCM stream side]
> + *  1.When stream in the both direction is started and has no PCM stream, stop
> + *    the stream because it include just MIDI stream. Then restart it with
> + *    requested sampling rate by PCM component.
> + *  2.When MIDI stream is going to be closed but PCM stream is still running,
> + *    the stream is kept to be running.
> + */

These rules will become even more complex when handling playback/capture
stream synchronization.

I think it would be a better idea to add some reference counting scheme
for determining when an AMDTP stream needs to be running.


Regards,
Clemens

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