72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
#pragma once
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#include <memory>
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#include <shared_mutex>
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#include <optional>
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#include <modules/audio_processing/include/audio_processing.h>
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namespace tc::audio {
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class AudioProcessor {
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public:
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struct Config : public webrtc::AudioProcessing::Config {
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struct {
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bool enabled{false};
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} rnnoise;
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};
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struct Stats : public webrtc::AudioProcessingStats {
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// The RNNoise returned sample volume
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absl::optional<float> rnnoise_volume;
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};
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struct ProcessObserver {
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public:
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virtual void stream_processed(const AudioProcessor::Stats&) = 0;
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};
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AudioProcessor();
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virtual ~AudioProcessor();
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[[nodiscard]] bool initialize();
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[[nodiscard]] Config get_config() const;
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void apply_config(const Config &/* config */);
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[[nodiscard]] AudioProcessor::Stats get_statistics() const;
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void register_process_observer(ProcessObserver* /* observer */);
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/**
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* Unregister a process observer.
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* Note: Never call this within the observer callback!
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* This will cause a deadlock.
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* @return
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*/
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bool unregister_process_observer(ProcessObserver* /* observer */);
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/* 10ms audio chunk */
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[[nodiscard]] std::optional<AudioProcessor::Stats> process_stream( const webrtc::StreamConfig& /* config */, float* const* /* buffer */);
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/**
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* Accepts deinterleaved float audio with the range [-1, 1]. Each element
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* of |data| points to a channel buffer, arranged according to
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* |reverse_config|.
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*/
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void analyze_reverse_stream(const float* const* data,
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const webrtc::StreamConfig& reverse_config);
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private:
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constexpr static auto kMaxChannelCount{2};
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mutable std::shared_mutex processor_mutex{};
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Config current_config{};
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std::vector<ProcessObserver*> process_observer{};
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webrtc::AudioProcessing* processor{nullptr};
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absl::optional<float> rnnoise_volume{};
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std::array<void*, kMaxChannelCount> rnnoise_processor{nullptr};
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[[nodiscard]] AudioProcessor::Stats get_statistics_unlocked() const;
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void apply_config_unlocked(const Config &/* config */);
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};
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} |