[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes)
From: |
David Henningsson |
Subject: |
Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes) |
Date: |
Sat, 14 Mar 2009 21:50:44 +0100 |
User-agent: |
Thunderbird 2.0.0.19 (X11/20090105) |
Pedro Lopez-Cabanillas skrev:
> I'm not saying that it is trivial, but I think that it is possible and would
> be a very welcomed improvement. Issues of the current implementation that
> must be addressed:
Thanks for reviewing the patch!
> * file output driver (fluid_aufile.c) uses another timer instance. This
> should
> be fixed as well, to solve ticket #15.
Agreed.
> * fluid_player_join() must be fixed.
My alternate implementation of that one should work (does anybody know a
sleep function for macos 9?). Actually it was the comment that misled me
into believing that fluid_player_join was only called when playing has
already stopped (which is wrong).
But fluid_player_join becomes somewhat obsolete/deprecated with the new
solution, and should be replaced with a fluid_player_get_status function
(and possibly some kind of callback when status changes).
> * MIDI rendering is delayed by one block, this needs some compensation.
Can you elaborate? I think this happens for the first block, but not the
other ones, right? (Btw, in the old/current timer solution, I guess the
delay is a bit random, which must be even worse?)
> * Ensure that the MIDI rendering ends before the last audio block has been
> sent to the output device. It would need even some additional time if there
> is some reverb or other effects applied.
I assume that should read as "Ensure that the MIDI rendering DOES NOT
end...". Anyway, I see this as a separate issue unrelated to my patch. I
reinstalled fluidsynth 1.0.8 from the Ubuntu archives and got a working
-i switch, and confirmed that the issue is present there as well (the
program quits too early, especially with a large audio.period-size).
// David
- [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), David Henningsson, 2009/03/13
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), David Henningsson, 2009/03/13
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/14
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Bernat Arlandis i Mañó, 2009/03/14
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/14
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes),
David Henningsson <=
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/14
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), David Henningsson, 2009/03/15
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/15
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Antoine Schmitt, 2009/03/15
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/16
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Bernat Arlandis i Mañó, 2009/03/21
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), David Henningsson, 2009/03/21
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Antoine Schmitt, 2009/03/21
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Pedro Lopez-Cabanillas, 2009/03/21
- Re: [fluid-dev] Patch for bad MIDI timing (with large buffer sizes), Bernat Arlandis i Mañó, 2009/03/21