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sysaudio: webaudio: Set internal buffer size to 512

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It was 4096 before. Lower values means lower latency but higher values
are needed for clear audio. It should be properly tested across multiple
browsers to find out the correct default value, or create a formula to
auto calculate it. It should always be a multiple of 2 in the range 256,
512, ..., 8192, 16384.
This commit is contained in:
iddev5 2022-07-17 18:01:46 +05:30 • committed by Stephen Gutekanst
parent 4c264c80cd
commit c22e54bcd7
1 changed files with 3 additions and 4 deletions
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7
sysaudio/src/webaudio.zig
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@ -54,6 +54,7 @@ pub fn waitEvents(_: Audio) void {}
const default_channel_count = 2; const default_channel_count = 2;
const default_sample_rate = 48000; const default_sample_rate = 48000;
const default_buffer_size = 512;
pub fn requestDevice(audio: Audio, config: DeviceDescriptor) Error!Device { pub fn requestDevice(audio: Audio, config: DeviceDescriptor) Error!Device {
// NOTE: WebAudio only supports F32 audio format, so config.format is unused // NOTE: WebAudio only supports F32 audio format, so config.format is unused
@ -71,7 +72,7 @@ pub fn requestDevice(audio: Audio, config: DeviceDescriptor) Error!Device {
const input_channels = if (mode == .input) js.createNumber(@intToFloat(f64, channels)) else js.createUndefined(); const input_channels = if (mode == .input) js.createNumber(@intToFloat(f64, channels)) else js.createUndefined();
const output_channels = if (mode == .output) js.createNumber(@intToFloat(f64, channels)) else js.createUndefined(); const output_channels = if (mode == .output) js.createNumber(@intToFloat(f64, channels)) else js.createUndefined();
const node = context.call("createScriptProcessor", &.{ js.createNumber(4096), input_channels, output_channels }).view(.object); const node = context.call("createScriptProcessor", &.{ js.createNumber(default_buffer_size), input_channels, output_channels }).view(.object);
defer node.deinit(); defer node.deinit();
context.set("node", node.toValue()); context.set("node", node.toValue());
@ -88,9 +89,7 @@ pub fn requestDevice(audio: Audio, config: DeviceDescriptor) Error!Device {
_ = node.call("connect", &.{destination.toValue()}); _ = node.call("connect", &.{destination.toValue()});
} }
return Device{ return Device{ .context = context };
.context = context,
};
} }
fn audioProcessEvent(args: js.Object, _: usize) js.Value { fn audioProcessEvent(args: js.Object, _: usize) js.Value {