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[client] audio: add audio playback latency interface and graph

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This commit is contained in:
Geoffrey McRae
2022-01-17 22:13:41 +11:00
parent 5629655f74
commit 689cc53255
5 changed files with 81 additions and 5 deletions
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21
client/audiodevs/PipeWire/pipewire.c
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@@ -370,6 +370,16 @@ static void pipewire_playbackMute(bool mute)
pw_thread_loop_unlock(pw.thread);
}
static uint64_t pipewire_playbackLatency(void)
{
const int frames = ringbuffer_getCount(pw.playback.buffer);
if (frames == 0)
return 0;
// TODO: we should really include the hw latency here too
return (uint64_t)pw.playback.sampleRate * 1000ULL / frames;
}
static void pipewire_recordStopStream(void)
{
if (!pw.record.stream)
@@ -527,11 +537,12 @@ struct LG_AudioDevOps LGAD_PipeWire =
.free = pipewire_free,
.playback =
{
.start = pipewire_playbackStart,
.play = pipewire_playbackPlay,
.stop = pipewire_playbackStop,
.volume = pipewire_playbackVolume,
.mute = pipewire_playbackMute
.start = pipewire_playbackStart,
.play = pipewire_playbackPlay,
.stop = pipewire_playbackStop,
.volume = pipewire_playbackVolume,
.mute = pipewire_playbackMute,
.latency = pipewire_playbackLatency
},
.record =
{