ALSA: fix buffer size / period size configuration #917
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With ALSA, the buffer size is `nperiod * period_size`. We want 2 periods ideally. The default is now set to 1024 samples which is a reasonable default, yet still too large for real-time audio. The default value now uses the same code path as custom values. Fixes RustAudio#913
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With ALSA, the buffer size is
nperiod * period_size. We want 2 periods ideally.The default is now set to 1024 samples which is a reasonable default, yet still too large for real-time audio.
Also the default value uses the same code path as custom values.
Fixes #913
Depends on #915 for successful compilation.
Replaces #914