From: "Clemens Ladisch" <cladisch@fastmail.net>
To: r10 kindsofpeople <r10kindsofpeople@hotmail.com>,
alsa-devel@lists.sourceforge.net
Subject: Re: stopping sequencer output queue gracefully
Date: Fri, 15 Dec 2006 08:30:54 +0100 [thread overview]
Message-ID: <1166167854.20860.280597815@webmail.messagingengine.com> (raw)
In-Reply-To: <BAY21-F222A395293750A95AC6FE3CDD50@phx.gbl>
r10 kindsofpeople wrote:
> Is there example code around that shows how to stop MIDI playback
> gracefully?
>
> At present, I'm doing a snd_seq_drop_output() and a snd_seq_stop_queue(),
> and getting some interesting behavior when I try to restart.
What do you mean with "interesting"?
After snd_seq_stop_queue(), you have to call snd_seq_drain_output() to
actually send the stop event.
> I'm also wondering if Alsa does anything to track or handle the stuck notes
> that result, or if my client needs to be responsible for tracking these and
> turning them off before stopping the queue.
A queue is just a tool for delivering events; ALSA doesn't try to
interpret the events sent through it. Besides, different devices may
have different rules about sending of note-on/note-off events.
I'd just send an All Notes Off message.
HTH
Clemens
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prev parent reply other threads:[~2006-12-15 7:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-14 14:12 stopping sequencer output queue gracefully r10 kindsofpeople
2006-12-14 16:48 ` Steve deRosier
2006-12-15 7:30 ` Clemens Ladisch [this message]
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