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authorLiam <byteslice@airmail.cc>2023-12-18 15:22:20 +0100
committerLiam <byteslice@airmail.cc>2023-12-18 23:27:32 +0100
commita7731abb72e80c26d5af771d17233652435a0c7d (patch)
tree6bbfbd090638d3647aea9db93c945e88792eca45 /src/audio_core
parentoboe_sink: set low latency performance mode (diff)
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Diffstat (limited to 'src/audio_core')
-rw-r--r--src/audio_core/sink/oboe_sink.cpp40
1 files changed, 27 insertions, 13 deletions
diff --git a/src/audio_core/sink/oboe_sink.cpp b/src/audio_core/sink/oboe_sink.cpp
index 8143b0db6..e61841172 100644
--- a/src/audio_core/sink/oboe_sink.cpp
+++ b/src/audio_core/sink/oboe_sink.cpp
@@ -29,7 +29,7 @@ public:
}
~OboeSinkStream() override {
- LOG_DEBUG(Audio_Sink, "Destructing Oboe stream {}", name);
+ LOG_INFO(Audio_Sink, "Destroyed Oboe stream");
}
void Finalize() override {
@@ -66,12 +66,7 @@ public:
std::shared_ptr<oboe::AudioStream> temp_stream;
oboe::AudioStreamBuilder builder;
- const auto result = builder.setDirection(direction)
- ->setPerformanceMode(oboe::PerformanceMode::LowLatency)
- ->setSampleRate(TargetSampleRate)
- ->setFormat(oboe::AudioFormat::I16)
- ->setFormatConversionAllowed(true)
- ->openStream(temp_stream);
+ const auto result = ConfigureBuilder(builder, direction)->openStream(temp_stream);
ASSERT(result == oboe::Result::OK);
return temp_stream->getChannelCount() >= 6 ? 6 : 2;
@@ -106,6 +101,20 @@ protected:
}
private:
+ static oboe::AudioStreamBuilder* ConfigureBuilder(oboe::AudioStreamBuilder& builder,
+ oboe::Direction direction) {
+ // TODO: investigate callback delay issues when using AAudio
+ return builder.setPerformanceMode(oboe::PerformanceMode::LowLatency)
+ ->setAudioApi(oboe::AudioApi::OpenSLES)
+ ->setDirection(direction)
+ ->setSampleRate(TargetSampleRate)
+ ->setSampleRateConversionQuality(oboe::SampleRateConversionQuality::High)
+ ->setFormat(oboe::AudioFormat::I16)
+ ->setFormatConversionAllowed(true)
+ ->setUsage(oboe::Usage::Game)
+ ->setBufferCapacityInFrames(TargetSampleCount * 2);
+ }
+
bool OpenStream() {
const auto direction = [&]() {
switch (type) {
@@ -136,13 +145,10 @@ private:
}();
oboe::AudioStreamBuilder builder;
- const auto result = builder.setDirection(direction)
- ->setPerformanceMode(oboe::PerformanceMode::LowLatency)
- ->setSampleRate(TargetSampleRate)
+ const auto result = ConfigureBuilder(builder, direction)
->setChannelCount(expected_channels)
->setChannelMask(expected_mask)
- ->setFormat(oboe::AudioFormat::I16)
- ->setFormatConversionAllowed(true)
+ ->setChannelConversionAllowed(true)
->setDataCallback(this)
->setErrorCallback(this)
->openStream(m_stream);
@@ -153,8 +159,16 @@ private:
bool SetStreamProperties() {
ASSERT(m_stream);
+ m_stream->setBufferSizeInFrames(TargetSampleCount * 2);
device_channels = m_stream->getChannelCount();
- LOG_INFO(Audio_Sink, "Opened Oboe stream with {} channels", device_channels);
+
+ const auto sample_rate = m_stream->getSampleRate();
+ const auto buffer_capacity = m_stream->getBufferCapacityInFrames();
+ const auto stream_backend =
+ m_stream->getAudioApi() == oboe::AudioApi::AAudio ? "AAudio" : "OpenSLES";
+
+ LOG_INFO(Audio_Sink, "Opened Oboe {} stream with {} channels sample rate {} capacity {}",
+ stream_backend, device_channels, sample_rate, buffer_capacity);
return true;
}