From 1dee8ceda1e5ecd5ebaee464b1450f323e82305f Mon Sep 17 00:00:00 2001 From: bunnei Date: Sat, 4 Aug 2018 00:03:12 -0400 Subject: audio_core: Use s16 where possible for audio samples. --- src/audio_core/audio_out.cpp | 2 +- src/audio_core/audio_out.h | 2 +- src/audio_core/buffer.h | 13 +++++++++---- src/audio_core/cubeb_sink.cpp | 11 +++++------ src/audio_core/null_sink.h | 3 +-- src/audio_core/sink_stream.h | 4 ++-- src/audio_core/stream.cpp | 19 +++++-------------- src/audio_core/stream.h | 3 --- 8 files changed, 24 insertions(+), 33 deletions(-) (limited to 'src/audio_core') diff --git a/src/audio_core/audio_out.cpp b/src/audio_core/audio_out.cpp index eb9db755a..12632a95c 100644 --- a/src/audio_core/audio_out.cpp +++ b/src/audio_core/audio_out.cpp @@ -51,7 +51,7 @@ void AudioOut::StopStream(StreamPtr stream) { stream->Stop(); } -bool AudioOut::QueueBuffer(StreamPtr stream, Buffer::Tag tag, std::vector&& data) { +bool AudioOut::QueueBuffer(StreamPtr stream, Buffer::Tag tag, std::vector&& data) { return stream->QueueBuffer(std::make_shared(tag, std::move(data))); } diff --git a/src/audio_core/audio_out.h b/src/audio_core/audio_out.h index d564ff91a..39b7e656b 100644 --- a/src/audio_core/audio_out.h +++ b/src/audio_core/audio_out.h @@ -34,7 +34,7 @@ public: void StopStream(StreamPtr stream); /// Queues a buffer into the specified audio stream, returns true on success - bool QueueBuffer(StreamPtr stream, Buffer::Tag tag, std::vector&& data); + bool QueueBuffer(StreamPtr stream, Buffer::Tag tag, std::vector&& data); private: SinkPtr sink; diff --git a/src/audio_core/buffer.h b/src/audio_core/buffer.h index 4bf5fd58a..a323b23ec 100644 --- a/src/audio_core/buffer.h +++ b/src/audio_core/buffer.h @@ -18,11 +18,16 @@ class Buffer { public: using Tag = u64; - Buffer(Tag tag, std::vector&& data) : tag{tag}, data{std::move(data)} {} + Buffer(Tag tag, std::vector&& samples) : tag{tag}, samples{std::move(samples)} {} /// Returns the raw audio data for the buffer - const std::vector& GetData() const { - return data; + std::vector& Samples() { + return samples; + } + + /// Returns the raw audio data for the buffer + const std::vector& GetSamples() const { + return samples; } /// Returns the buffer tag, this is provided by the game to the audout service @@ -32,7 +37,7 @@ public: private: Tag tag; - std::vector data; + std::vector samples; }; using BufferPtr = std::shared_ptr; diff --git a/src/audio_core/cubeb_sink.cpp b/src/audio_core/cubeb_sink.cpp index 0b0e9a053..1501ef1f4 100644 --- a/src/audio_core/cubeb_sink.cpp +++ b/src/audio_core/cubeb_sink.cpp @@ -61,25 +61,24 @@ public: cubeb_stream_destroy(stream_backend); } - void EnqueueSamples(u32 num_channels, const s16* samples, size_t sample_count) override { + void EnqueueSamples(u32 num_channels, const std::vector& samples) override { if (!ctx) { return; } - queue.reserve(queue.size() + sample_count * GetNumChannels()); + queue.reserve(queue.size() + samples.size() * GetNumChannels()); if (is_6_channel) { // Downsample 6 channels to 2 - const size_t sample_count_copy_size = sample_count * num_channels * 2; + const size_t sample_count_copy_size = samples.size() * 2; queue.reserve(sample_count_copy_size); - for (size_t i = 0; i < sample_count * num_channels; i += num_channels) { + for (size_t i = 0; i < samples.size(); i += num_channels) { queue.push_back(samples[i]); queue.push_back(samples[i + 1]); } } else { // Copy as-is - std::copy(samples, samples + sample_count * GetNumChannels(), - std::back_inserter(queue)); + std::copy(samples.begin(), samples.end(), std::back_inserter(queue)); } } diff --git a/src/audio_core/null_sink.h b/src/audio_core/null_sink.h index 66041ea3f..f235d93e5 100644 --- a/src/audio_core/null_sink.h +++ b/src/audio_core/null_sink.h @@ -20,8 +20,7 @@ public: private: struct NullSinkStreamImpl final : SinkStream { - void EnqueueSamples(u32 /*num_channels*/, const s16* /*samples*/, - size_t /*sample_count*/) override {} + void EnqueueSamples(u32 /*num_channels*/, const std::vector& /*samples*/) override {} } null_sink_stream; }; diff --git a/src/audio_core/sink_stream.h b/src/audio_core/sink_stream.h index e7a3f01b0..41b6736d8 100644 --- a/src/audio_core/sink_stream.h +++ b/src/audio_core/sink_stream.h @@ -5,6 +5,7 @@ #pragma once #include +#include #include "common/common_types.h" @@ -22,9 +23,8 @@ public: * Feed stereo samples to sink. * @param num_channels Number of channels used. * @param samples Samples in interleaved stereo PCM16 format. - * @param sample_count Number of samples. */ - virtual void EnqueueSamples(u32 num_channels, const s16* samples, size_t sample_count) = 0; + virtual void EnqueueSamples(u32 num_channels, const std::vector& samples) = 0; }; using SinkStreamPtr = std::unique_ptr; diff --git a/src/audio_core/stream.cpp b/src/audio_core/stream.cpp index 7ab87c0c9..ad9e2915c 100644 --- a/src/audio_core/stream.cpp +++ b/src/audio_core/stream.cpp @@ -32,10 +32,6 @@ u32 Stream::GetNumChannels() const { return {}; } -u32 Stream::GetSampleSize() const { - return GetNumChannels() * 2; -} - Stream::Stream(u32 sample_rate, Format format, ReleaseCallback&& release_callback, SinkStream& sink_stream, std::string&& name_) : sample_rate{sample_rate}, format{format}, release_callback{std::move(release_callback)}, @@ -55,17 +51,15 @@ void Stream::Stop() { } s64 Stream::GetBufferReleaseCycles(const Buffer& buffer) const { - const size_t num_samples{buffer.GetData().size() / GetSampleSize()}; + const size_t num_samples{buffer.GetSamples().size() / GetNumChannels()}; return CoreTiming::usToCycles((static_cast(num_samples) * 1000000) / sample_rate); } -static std::vector GetVolumeAdjustedSamples(const std::vector& data) { - std::vector samples(data.size() / sizeof(s16)); - std::memcpy(samples.data(), data.data(), data.size()); +static void VolumeAdjustSamples(std::vector& samples) { const float volume{std::clamp(Settings::values.volume, 0.0f, 1.0f)}; if (volume == 1.0f) { - return samples; + return; } // Implementation of a volume slider with a dynamic range of 60 dB @@ -73,8 +67,6 @@ static std::vector GetVolumeAdjustedSamples(const std::vector& data) { for (auto& sample : samples) { sample = static_cast(sample * volume_scale_factor); } - - return samples; } void Stream::PlayNextBuffer() { @@ -96,9 +88,8 @@ void Stream::PlayNextBuffer() { active_buffer = queued_buffers.front(); queued_buffers.pop(); - const size_t sample_count{active_buffer->GetData().size() / GetSampleSize()}; - sink_stream.EnqueueSamples( - GetNumChannels(), GetVolumeAdjustedSamples(active_buffer->GetData()).data(), sample_count); + VolumeAdjustSamples(active_buffer->Samples()); + sink_stream.EnqueueSamples(GetNumChannels(), active_buffer->GetSamples()); CoreTiming::ScheduleEventThreadsafe(GetBufferReleaseCycles(*active_buffer), release_event, {}); } diff --git a/src/audio_core/stream.h b/src/audio_core/stream.h index 00f991733..049b92ca9 100644 --- a/src/audio_core/stream.h +++ b/src/audio_core/stream.h @@ -69,9 +69,6 @@ public: /// Gets the number of channels u32 GetNumChannels() const; - /// Gets the sample size in bytes - u32 GetSampleSize() const; - private: /// Current state of the stream enum class State { -- cgit v1.2.3