Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural cask strength!

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From: Albert Graef <Dr.Graef@...>
To: <linux-audio-dev@...>
Subject: Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural cask strength!
Date: Monday, January 9, 2012 - 8:10 pm

On 01/09/2012 04:00 PM, Rui Nuno Capela wrote:


Thanks a bunch. :) Attached is another suggested patch against the

current trunk (r2660) to make qtractor send an MMC locate after jumping

back to the beginning of a loop. It's not perfect, but I'm posting it

anyway in case someone may find it useful.


As you can see I handled this in the timer callback of the main form

which isn't 100% accurate, but I never found it to be off by more than 1

frame, which I guess is good enough for my purposes. There are surely

better ways to do this, but I wasn't able to figure that out without

investing much more time reading the source code. Ideally, this should

be handled on the spot somewhere in the MIDI engine. I tried to add it

directly in qtractorMidiOutputThread::process(), but the read-ahead gets

in the way there, so I couldn't find a proper way to make that work. (Is

there a way in qtractor to schedule a callback exactly at the *real*

time when the play head reaches a given position? Then this would be easy.)


There are a few other situations where an MMC locate is still missing,

specifically after ending a rewind or fast-forward, but I have no idea

how to fix this without diving into the qtractor sources much more than

I did. :(


Cheers,

Albert


--

Dr. Albert Gr"af

Dept. of Music-Informatics, University of Mainz, Germany

Email:  Dr.Graef@t-online.de, ag@muwiinfa.geschichte.uni-mainz.de

WWW:    http://www.musikinformatik.uni-mainz.de/ag
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Messages in current thread:
[LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural cask s..., Rui Nuno Capela, (Wed Dec 28, 5:00 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Wed Jan 4, 10:53 am)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Wed Jan 4, 3:55 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Wed Jan 4, 5:26 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Alex Montgomery, (Wed Jan 4, 5:53 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Wed Jan 4, 7:56 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Wed Jan 4, 5:49 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Wed Jan 4, 6:53 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Sat Jan 7, 3:56 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Mon Jan 9, 3:00 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Mon Jan 9, 8:10 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Mon Jan 9, 9:49 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Mon Jan 9, 11:34 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., rncbc, (Tue Jan 10, 9:31 am)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Tue Jan 10, 12:27 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Tue Jan 10, 6:42 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Tue Jan 10, 7:54 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Tue Jan 10, 8:27 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Tue Jan 10, 10:12 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Albert Graef, (Mon Jan 9, 11:42 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Louigi Verona, (Mon Jan 9, 3:54 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Mon Jan 9, 6:30 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Louigi Verona, (Mon Jan 9, 9:02 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Mon Jan 9, 9:45 pm)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., rncbc, (Tue Jan 10, 10:06 am)
Re: [LAD] [ANN] Qtractor 0.5.3 - The Delta Whisky natural ca..., Rui Nuno Capela, (Wed Jan 4, 4:10 pm)