Don't use VPIO forcelist by default #244
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This makes it so clients have to opt into the VPIO forcelist. It is currently mainly needed by gecko, since sites may create multiple streams to a builtin device with different prefs and processing params, and HAL audio units to builtin device are not working properly when there is a VPIO audio unit to the same builtin device on (anywhere) on the system. With the cfg flag vpio-forcelist a client can avoid VPIO altogether, by not compiling with the flag, and by never creating input streams with the VOICE pref. Should a client need to mix VOICE and non-VOICE input streams to a single device, it should enable vpio-forcelist. Fixes #242.
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This makes it so clients have to opt into the VPIO forcelist. It is currently mainly needed by gecko, since sites may create multiple streams to a builtin device with different prefs and processing params, and HAL audio units to builtin device are not working properly when there is a VPIO audio unit to the same builtin device on (anywhere) on the system.
With the cfg flag vpio-forcelist a client can avoid VPIO altogether, by not compiling with the flag, and by never creating input streams with the VOICE pref.
Should a client need to mix VOICE and non-VOICE input streams to a single device, it should enable vpio-forcelist.
Fixes #242.