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sysaudio: improve backend selection; remove i8 sample support (#767)

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* sysaudio: fix compilation errors
* re-order backend selection
* remove i8 samples support from backends and disable signedToSigned convertion for now
* update sine-wave example
This commit is contained in:
Ali Chraghi 2023-04-30 16:36:39 -07:00 • committed by GitHub
parent 8fbc36999f
commit ed05166348
Failed to generate hash of commit
8 changed files with 64 additions and 89 deletions
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4
libs/sysaudio/src/coreaudio.zig
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@ -337,7 +337,7 @@ pub const Context = struct {
return error.OpeningDevice;
}
const stream_desc = createStreamDesc(options.format, options.sample_rate, device.channels.len);
const stream_desc = try createStreamDesc(options.format, options.sample_rate, device.channels.len);
if (c.AudioUnitSetProperty(
audio_unit,
c.kAudioUnitProperty_StreamFormat,
@ -487,7 +487,6 @@ fn createStreamDesc(format: main.Format, sample_rate: u24, ch_count: usize) !c.A
.mSampleRate = @intToFloat(f64, sample_rate),
.mFormatID = c.kAudioFormatLinearPCM,
.mFormatFlags = switch (format) {
.i8 => c.kAudioFormatFlagIsSignedInteger,
.i16 => c.kAudioFormatFlagIsSignedInteger,
.i24 => c.kAudioFormatFlagIsSignedInteger,
.i32 => c.kAudioFormatFlagIsSignedInteger,
@ -500,7 +499,6 @@ fn createStreamDesc(format: main.Format, sample_rate: u24, ch_count: usize) !c.A
.mBytesPerFrame = format.frameSize(ch_count),
.mChannelsPerFrame = @intCast(c_uint, ch_count),
.mBitsPerChannel = switch (format) {
.i8 => 8,
.i16 => 16,
.i24 => 24,
.i32 => 32,