92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
#pragma once
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#include <memory>
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#include <array>
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#include <vector>
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#include <mutex>
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#include <portaudio.h>
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#include "./AudioDriver.h"
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namespace tc::audio::pa {
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class PortAudioPlayback : public AudioDevicePlayback {
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public:
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static constexpr auto kDefaultChannelCount{2};
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static constexpr std::array<size_t, 2> kSupportedSampleRates{48000, 44100};
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explicit PortAudioPlayback(PaDeviceIndex index, const PaDeviceInfo* info);
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virtual ~PortAudioPlayback();
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[[nodiscard]] size_t current_sample_rate() const override;
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protected:
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bool impl_start(std::string& /* error */) override;
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void impl_stop() override;
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private:
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void write_callback(void *output, unsigned long frameCount, const PaStreamCallbackTimeInfo* timeInfo, PaStreamCallbackFlags statusFlags);
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PaDeviceIndex index;
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const PaDeviceInfo* info;
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PaStream* stream{nullptr};
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size_t source_sample_rate{0};
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size_t source_channel_count{0};
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};
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class PortAudioRecord : public AudioDeviceRecord {
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public:
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static constexpr auto kDefaultChannelCount{2};
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static constexpr std::array<size_t, 2> kSupportedSampleRates{48000, 44100};
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explicit PortAudioRecord(PaDeviceIndex index, const PaDeviceInfo* info);
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virtual ~PortAudioRecord();
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[[nodiscard]] size_t sample_rate() const override;
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protected:
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bool impl_start(std::string& /* error */) override;
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void impl_stop() override;
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private:
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void read_callback(const void *input, unsigned long frameCount, const PaStreamCallbackTimeInfo* timeInfo, PaStreamCallbackFlags statusFlags);
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size_t source_sample_rate{0};
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size_t source_channel_count{0};
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PaDeviceIndex index;
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const PaDeviceInfo* info;
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PaStream* stream{nullptr};
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};
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struct PaAudioDevice : public AudioDevice {
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public:
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explicit PaAudioDevice(PaDeviceIndex index, const PaDeviceInfo* info, const PaHostApiInfo* host);
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virtual ~PaAudioDevice() = default;
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[[nodiscard]] std::string id() const override;
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[[nodiscard]] std::string name() const override;
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[[nodiscard]] std::string driver() const override;
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[[nodiscard]] bool is_input_supported() const override;
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[[nodiscard]] bool is_output_supported() const override;
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[[nodiscard]] bool is_input_default() const override;
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[[nodiscard]] bool is_output_default() const override;
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[[nodiscard]] std::shared_ptr<AudioDevicePlayback> playback() override;
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[[nodiscard]] std::shared_ptr<AudioDeviceRecord> record() override;
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private:
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const PaDeviceIndex _index;
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const PaDeviceInfo* _info;
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const PaHostApiInfo* _host_info;
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std::mutex io_lock{};
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std::shared_ptr<PortAudioPlayback> _playback;
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std::shared_ptr<PortAudioRecord> _record;
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};
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extern void initialize();
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extern void finalize();
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extern std::deque<std::shared_ptr<PaAudioDevice>> devices();
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} |