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4ee409af84
Currently abuses the output audio streams' background processing thread to do the work, since there's no generalized threaded processing mechanism.
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#ifndef GAME_SOUND_LOUDNESS_H
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#define GAME_SOUND_LOUDNESS_H
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#include <vector>
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#include "sound_decoder.hpp"
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namespace MWSound
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{
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class Sound_Loudness {
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// Loudness sample info
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float mSamplesPerSec;
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std::vector<float> mSamples;
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volatile bool mReady;
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public:
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Sound_Loudness() : mSamplesPerSec(0.0f), mReady(false) { }
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/**
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* Analyzes the energy (closely related to loudness) of a sound buffer.
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* The buffer will be divided into segments according to \a valuesPerSecond,
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* and for each segment a loudness value in the range of [0,1] will be computed.
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* @param data the sound buffer to analyze, containing raw samples
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* @param sampleRate the sample rate of the sound buffer
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* @param chans channel layout of the buffer
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* @param type sample type of the buffer
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* @param valuesPerSecond How many loudness values per second of audio to compute.
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*/
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void analyzeLoudness(const std::vector<char>& data, int sampleRate,
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ChannelConfig chans, SampleType type,
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float valuesPerSecond);
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bool isReady() { return mReady; }
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float getLoudnessAtTime(float sec) const;
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};
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}
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#endif /* GAME_SOUND_LOUDNESS_H */
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