alsa(pipewire): seconds high latency with BufferSize::Fixed #1034
Description
Hi! I'm using CPAL to make a GB emulator, since the reversal of this commit I'm getting a very high latency when using Alsa on Linux, the delay is of multiple seconds. I also tried the branch fix/pipewire-alsa-latency, but it doesn't solve the issue. Commit 5dd648ee8564d3d0ed77c60c95246425dbeebd10 works like a charm though. All the Cpal code in my project is in the audio file, but this is the setup:
const BUFFER_SIZE: u32 = 512;
const RING_BUFFER_SIZE: usize = BUFFER_SIZE as usize * 4;
const SAMPLE_RATE: i32 = 48000;
let host = cpal::default_host();
let device = host.default_output_device().ok_or(Error::GetOutputDevice)?;
let config = cpal::StreamConfig {
channels: 2,
sample_rate: cpal::SampleRate(SAMPLE_RATE as u32),
buffer_size: cpal::BufferSize::Fixed(BUFFER_SIZE),
};
let error_callback = |err| eprintln!("an AudioError occurred on stream: {err}");
let data_callback = move |buffer: &mut [ProcessSample], _: &_| {
if let Ok(mut ring) = ring_buffer_clone.lock() {
ring.write_samples_interleaved(buffer);
}
};
let stream = device
.build_output_stream(&config, data_callback, error_callback, None)
.map_err(|_err| Error::BuildStream)?;As in this issue I'm also using PipeWire. Let me know if you need anything. Thanks!