Hi Tim,
2017-12-23 20:38 GMT+01:00 Tim <[email protected]>:
> Hi Robert, just to let you know I'm trying to fix some
> problems in there, don't want to step on your toes
> but I need to move on, I've got a couple of bugs
> in my mega-commit to fix.
>
> Maybe you're already working on it?
>
Ah, I didn't test too much yet but wasn't aware of any immediate problems.
No worries about my toes I'm aware of my limits and there are bound to be
bugs and omissions. :)
The way I see it, no problems if you want to get in there and fix it up but
I know you have bigger fish to fry so I can definitely try to get it sorted
myself. If you start with the -.j parameter it should behave mostly the
same as before.
Codewise the rtaudio backend isn't that big but it's a pretty big change
for MusE and that I decided to switch it over to starting pulse instead of
jack.
>
> When Jack is running MusE should never try to start rtAudio,
> especially with the Pulse driver, it hangs because you cannot
> start both Jack and Pulse.
>
Ah, yes I see what you mean now. I did the switchover last night in a speed
coding session and I didn't consider this. Also I should have asked you,
before doing this change, what you thought, though I think it's the right
thing to do in the long run.
I'll try to take care of that now, it's tricky since we
> cannot easily ask if a Jack server is running.
>
> Doing so essentially involves attempting to start the server
> anyway. Therefore I believe the correct solution is to, in
> the absence of any overrides such as -a or -t, /always/ try
> to start Jack first (since per above, we must try anyway),
> then rtAudio, then our dummy driver.
>
Yeah I see it now, should definitely try to connect to jack (without
autostart set) before doing what the configuration says.
>
> Also, my last sample rate was 88200 using our dummy driver.
> (Don't ask, it's for testing my resample branch.)
> Thus when I tried to start MusE with these commits, rtAudio
> tried to start Pulse and said "unsupported sample rate".
> Now, after that it hung, but Jack was already running so
> I think that's why, but I'm curious what rtAudio and Pulse
> will do when they /do/ start properly (without Jack running.)
> I wonder if they will fall back to another sample rate.
> Or just fail and /we/ need to fall back to another driver
> or choose another sample rate /ourselves/ and try again
> before the program can move on...
>
RtAudio will setup a driver with the samplerate set in the configuration so
it will very likely be wrong.
Though, with RtAudio we should be able to quite easily restart the audio
driver upon song startup and set the samplerate to whatever the song wants.
I can take a look later.
Regards,
Robert
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