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Implement Pause() for OSXOutput plugin

This commit is contained in:
Christian Kröner 2018-03-07 11:41:15 +01:00
parent d3f097c7f1
commit 4d7f1f0c35
1 changed files with 21 additions and 2 deletions
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23
src/output/plugins/OSXOutputPlugin.cxx
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@ -49,6 +49,7 @@ struct OSXOutput final : AudioOutput {
const char *channel_map;
bool hog_device;
bool sync_sample_rate;
bool pause;
#ifdef ENABLE_DSD
/**
* Enable DSD over PCM according to the DoP standard?
@ -81,6 +82,7 @@ private:
std::chrono::steady_clock::duration Delay() const noexcept override;
size_t Play(const void *chunk, size_t size) override;
bool Pause() override;
};
static constexpr Domain osx_output_domain("osx_output");
@ -108,7 +110,7 @@ osx_output_test_default_device(void)
}
OSXOutput::OSXOutput(const ConfigBlock &block)
:AudioOutput(FLAG_ENABLE_DISABLE)
:AudioOutput(FLAG_ENABLE_DISABLE|FLAG_PAUSE)
{
const char *device = block.GetBlockValue("device");
@ -763,12 +765,21 @@ OSXOutput::Open(AudioFormat &audio_format)
throw FormatRuntimeError("unable to start audio output: %s",
errormsg);
}
pause = false;
}
size_t
OSXOutput::Play(const void *chunk, size_t size)
{
assert(size > 0);
if(pause) {
pause = false;
OSStatus status = AudioOutputUnitStart(au);
if (status != 0) {
AudioUnitUninitialize(au);
throw std::runtime_error("Unable to restart audio output after pause");
}
}
const auto e = pcm_export->Export({chunk, size});
if (e.size == 0)
/* the DoP (DSD over PCM) filter converts two frames
@ -791,7 +802,15 @@ OSXOutput::Delay() const noexcept
? std::chrono::steady_clock::duration::zero()
: std::chrono::milliseconds(MPD_OSX_BUFFER_TIME_MS / 4);
}
bool OSXOutput::Pause() {
if(!pause) {
pause = true;
AudioOutputUnitStop(au);
}
return true;
}
int
osx_output_get_volume(OSXOutput &output)
{