Specify suggested_latency from device info.

- Update portaudio dependency.
- Pass default_high_output_latency to ensure robust playback.
- This is the same behavior as when previously using Stream::open_default().
This commit is contained in:
Alain Boyer 2016-07-23 01:39:41 +03:00
parent 682658903d
commit 82af7a3d71
2 changed files with 10 additions and 5 deletions

4
Cargo.lock generated
View file

@ -564,7 +564,7 @@ dependencies = [
[[package]]
name = "portaudio"
version = "0.2.0"
source = "git+https://github.com/mvdnes/portaudio-rs#0b228f54a16814c52ba1ef449ac439af59f8cab0"
source = "git+https://github.com/mvdnes/portaudio-rs#2e1630843551a229bfe6cae6291fd157349bad60"
dependencies = [
"bitflags 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
@ -574,7 +574,7 @@ dependencies = [
[[package]]
name = "portaudio_sys"
version = "0.1.1"
source = "git+https://github.com/mvdnes/portaudio-rs#0b228f54a16814c52ba1ef449ac439af59f8cab0"
source = "git+https://github.com/mvdnes/portaudio-rs#2e1630843551a229bfe6cae6291fd157349bad60"
dependencies = [
"libc 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
"pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",

View file

@ -1,6 +1,7 @@
use super::{Open, Sink};
use std::io;
use std::process::exit;
use std::time::Duration;
use portaudio;
use portaudio::device::{DeviceIndex, DeviceInfo, get_default_output_index};
@ -53,12 +54,16 @@ impl <'a> Open for PortAudioSink<'a> {
None => get_default_output_index(),
}.expect("Could not find device");
let info = portaudio::device::get_info(device_idx);
let latency = match info {
Some(info) => info.default_high_output_latency,
None => Duration::new(0, 0),
};
let params = StreamParameters {
device: device_idx,
channel_count: 2,
// Super hacky workaround the fact that Duration is private
// in portaudio
suggested_latency: unsafe { ::std::mem::transmute(0i64) },
suggested_latency: latency,
data: 0i16,
};