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Enable pulseaudio device names (#450)

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Fixes #207
This commit is contained in:
kaymes 2020-04-25 21:27:21 +10:00 committed by GitHub
parent 2d2e73c23c
commit 9fe82ef781
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 5 deletions
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12
playback/src/audio_backend/pulseaudio.rs
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@ -12,6 +12,7 @@ pub struct PulseAudioSink {
ss: pa_sample_spec,
name: CString,
desc: CString,
device: Option<CString>,
}
fn call_pulseaudio<T, F, FailCheck>(
@ -56,10 +57,6 @@ impl Open for PulseAudioSink {
fn open(device: Option<String>) -> PulseAudioSink {
debug!("Using PulseAudio sink");
if device.is_some() {
panic!("pulseaudio sink does not support specifying a device name");
}
let ss = pa_sample_spec {
format: PA_SAMPLE_S16LE,
channels: 2, // stereo
@ -74,6 +71,7 @@ impl Open for PulseAudioSink {
ss: ss,
name: name,
desc: description,
device: device.and_then(|s| CString::new(s).ok()),
}
}
}
@ -81,13 +79,17 @@ impl Open for PulseAudioSink {
impl Sink for PulseAudioSink {
fn start(&mut self) -> io::Result<()> {
if self.s == null_mut() {
let device = match &self.device {
None => null(),
Some(device) => device.as_ptr(),
};
self.s = call_pulseaudio(
|err| unsafe {
pa_simple_new(
null(), // Use the default server.
self.name.as_ptr(), // Our application's name.
PA_STREAM_PLAYBACK,
null(), // Use the default device.
device,
self.desc.as_ptr(), // desc of our stream.
&self.ss, // Our sample format.
null(), // Use default channel map