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audio_core: Misc. improvements to stream/buffer/audio_out.
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@ -9,7 +9,7 @@
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namespace AudioCore {
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/// Returns the stream format from the specified number of channels
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static Stream::Format ChannelsToStreamFormat(int num_channels) {
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static Stream::Format ChannelsToStreamFormat(u32 num_channels) {
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switch (num_channels) {
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case 1:
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return Stream::Format::Mono16;
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@ -24,7 +24,7 @@ static Stream::Format ChannelsToStreamFormat(int num_channels) {
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return {};
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}
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StreamPtr AudioOut::OpenStream(int sample_rate, int num_channels,
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StreamPtr AudioOut::OpenStream(u32 sample_rate, u32 num_channels,
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Stream::ReleaseCallback&& release_callback) {
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streams.push_back(std::make_shared<Stream>(sample_rate, ChannelsToStreamFormat(num_channels),
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std::move(release_callback)));
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@ -13,15 +13,13 @@
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namespace AudioCore {
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using StreamPtr = std::shared_ptr<Stream>;
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/**
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* Represents an audio playback interface, used to open and play audio streams
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*/
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class AudioOut {
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public:
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/// Opens a new audio stream
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StreamPtr OpenStream(int sample_rate, int num_channels,
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StreamPtr OpenStream(u32 sample_rate, u32 num_channels,
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Stream::ReleaseCallback&& release_callback);
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/// Returns a vector of recently released buffers specified by tag for the specified stream
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@ -37,7 +35,7 @@ public:
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bool QueueBuffer(StreamPtr stream, Buffer::Tag tag, std::vector<u8>&& data);
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private:
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/// Active audio streams on the interface
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SinkPtr sink;
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std::vector<StreamPtr> streams;
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};
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@ -4,6 +4,7 @@
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#pragma once
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#include <memory>
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#include <vector>
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#include "common/common_types.h"
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@ -34,4 +35,6 @@ private:
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std::vector<u8> data;
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};
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using BufferPtr = std::shared_ptr<Buffer>;
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} // namespace AudioCore
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@ -13,24 +13,24 @@ namespace AudioCore {
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constexpr size_t MaxAudioBufferCount{32};
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/// Returns the sample size for the specified audio stream format
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static size_t SampleSizeFromFormat(Stream::Format format) {
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u32 Stream::GetNumChannels() const {
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switch (format) {
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case Stream::Format::Mono16:
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case Format::Mono16:
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return 1;
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case Format::Stereo16:
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return 2;
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case Stream::Format::Stereo16:
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return 4;
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case Stream::Format::Multi51Channel16:
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return 12;
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};
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case Format::Multi51Channel16:
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return 6;
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}
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LOG_CRITICAL(Audio, "Unimplemented format={}", static_cast<u32>(format));
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UNREACHABLE();
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return {};
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}
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Stream::Stream(int sample_rate, Format format, ReleaseCallback&& release_callback)
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: sample_rate{sample_rate}, format{format}, release_callback{std::move(release_callback)} {
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u32 Stream::GetSampleSize() const {
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return GetNumChannels() * 2;
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}
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release_event = CoreTiming::RegisterEvent(
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"Stream::Release", [this](u64 userdata, int cycles_late) { ReleaseActiveBuffer(); });
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}
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@ -45,7 +45,7 @@ void Stream::Stop() {
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}
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s64 Stream::GetBufferReleaseCycles(const Buffer& buffer) const {
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const size_t num_samples{buffer.GetData().size() / SampleSizeFromFormat(format)};
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const size_t num_samples{buffer.GetData().size() / GetSampleSize()};
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return CoreTiming::usToCycles((static_cast<u64>(num_samples) * 1000000) / sample_rate);
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}
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@ -16,8 +16,6 @@
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namespace AudioCore {
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using BufferPtr = std::shared_ptr<Buffer>;
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/**
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* Represents an audio stream, which is a sequence of queued buffers, to be outputed by AudioOut
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*/
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@ -60,6 +58,17 @@ public:
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return queued_buffers.size();
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}
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/// Gets the sample rate
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u32 GetSampleRate() const {
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return sample_rate;
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}
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/// Gets the number of channels
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u32 GetNumChannels() const;
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/// Gets the sample size in bytes
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u32 GetSampleSize() const;
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private:
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/// Current state of the stream
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enum class State {
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@ -86,4 +95,6 @@ private:
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std::queue<BufferPtr> released_buffers; ///< Buffers recently released from the stream
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};
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using StreamPtr = std::shared_ptr<Stream>;
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} // namespace AudioCore
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