portaudio support improvements

[jarikomppa]

portaudio support improvements

[vk2gpu]

Just scanning through bugs and spotted this. It's good practice to never do file i/o or memory allocation on an audio callback as you can't reason about how long those will take and I'd consider filling an audio buffer pretty time critical :) Possibly should be moving all that stuff out of the mixing thread in general across the board, not just for portaudio? There shouldn't be any increase in latency from doing that unless file io falls behind, which would just cause stuttering anyway.

[jarikomppa]

Yes.

On Wed, May 13, 2015 at 6:51 AM, Neil Richardson [email protected]
wrote:

Just scanning through bugs and spotted this. It's good practice to never
do file i/o or memory allocation on an audio callback as you can't reason
about how long those will take and I'd consider filling an audio buffer
pretty time critical :) Possibly should be moving all that stuff out of the
mixing thread in general across the board, not just for portaudio? There
shouldn't be any increase in latency from doing that unless file io falls
behind, which would just cause stuttering anyway.

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[jarikomppa]

I'll close this because it's a more generic issue, and there's #107 for it.