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author | Liam <byteslice@airmail.cc> | 2023-12-17 08:01:25 +0100 |
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committer | Liam <byteslice@airmail.cc> | 2023-12-17 16:10:14 +0100 |
commit | e01c5351781f7c0a8f5e6469a33563f26f8f0779 (patch) | |
tree | 421411782728e7b5a43027a765ce76d4f3768e64 /src/audio_core/sink/oboe_sink.cpp | |
parent | android: add oboe audio sink (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/audio_core/sink/oboe_sink.cpp | 47 |
1 files changed, 35 insertions, 12 deletions
diff --git a/src/audio_core/sink/oboe_sink.cpp b/src/audio_core/sink/oboe_sink.cpp index fc62faaee..c502205e1 100644 --- a/src/audio_core/sink/oboe_sink.cpp +++ b/src/audio_core/sink/oboe_sink.cpp @@ -20,11 +20,10 @@ class OboeSinkStream final : public SinkStream, public oboe::AudioStreamErrorCallback { public: explicit OboeSinkStream(Core::System& system_, StreamType type_, const std::string& name_, - u32 device_channels_, u32 system_channels_) + u32 system_channels_) : SinkStream(system_, type_) { name = name_; system_channels = system_channels_; - device_channels = device_channels_; this->OpenStream(); } @@ -62,6 +61,21 @@ public: } } +public: + static s32 QueryChannelCount(oboe::Direction direction) { + std::shared_ptr<oboe::AudioStream> temp_stream; + oboe::AudioStreamBuilder builder; + + const auto result = builder.setDirection(direction) + ->setSampleRate(TargetSampleRate) + ->setFormat(oboe::AudioFormat::I16) + ->setFormatConversionAllowed(true) + ->openStream(temp_stream); + ASSERT(result == oboe::Result::OK); + + return temp_stream->getChannelCount() >= 6 ? 6 : 2; + } + protected: oboe::DataCallbackResult onAudioReady(oboe::AudioStream*, void* audio_data, s32 num_buffer_frames) override { @@ -105,8 +119,9 @@ private: } }(); - const auto channel_mask = [&]() { - switch (device_channels) { + const auto expected_channels = QueryChannelCount(direction); + const auto expected_mask = [&]() { + switch (expected_channels) { case 1: return oboe::ChannelMask::Mono; case 2: @@ -122,25 +137,33 @@ private: oboe::AudioStreamBuilder builder; const auto result = builder.setDirection(direction) ->setSampleRate(TargetSampleRate) - ->setChannelCount(device_channels) - ->setChannelMask(channel_mask) + ->setChannelCount(expected_channels) + ->setChannelMask(expected_mask) ->setFormat(oboe::AudioFormat::I16) ->setFormatConversionAllowed(true) ->setDataCallback(this) ->setErrorCallback(this) ->openStream(m_stream); - ASSERT(result == oboe::Result::OK); - return result == oboe::Result::OK; + return result == oboe::Result::OK && this->SetStreamProperties(); + } + + bool SetStreamProperties() { + ASSERT(m_stream); + + device_channels = m_stream->getChannelCount(); + LOG_INFO(Audio_Sink, "Opened Oboe stream with {} channels", device_channels); + + return true; } std::shared_ptr<oboe::AudioStream> m_stream{}; }; OboeSink::OboeSink() { - // TODO: how do we get the number of channels, or device list? - // This seems to be missing from NDK. - device_channels = 2; + // TODO: This is not generally knowable + // The channel count is distinct based on direction and can change + device_channels = OboeSinkStream::QueryChannelCount(oboe::Direction::Output); } OboeSink::~OboeSink() = default; @@ -148,7 +171,7 @@ OboeSink::~OboeSink() = default; SinkStream* OboeSink::AcquireSinkStream(Core::System& system, u32 system_channels, const std::string& name, StreamType type) { SinkStreamPtr& stream = sink_streams.emplace_back( - std::make_unique<OboeSinkStream>(system, type, name, device_channels, system_channels)); + std::make_unique<OboeSinkStream>(system, type, name, system_channels)); return stream.get(); } |