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60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#ifndef OPENSHOT_RESAMPLER_H
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#define OPENSHOT_RESAMPLER_H
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/**
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* \file
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* \brief Header file for AudioResampler class
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* \author Copyright (c) 2011 Jonathan Thomas
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*/
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/// Do not include the juce unittest headers, because it collides with unittest++
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#ifndef __JUCE_UNITTEST_JUCEHEADER__
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#define __JUCE_UNITTEST_JUCEHEADER__
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#endif
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#include "JuceLibraryCode/JuceHeader.h"
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#include "AudioBufferSource.h"
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#include "Exceptions.h"
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/// This namespace is the default namespace for all code in the openshot library.
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namespace openshot {
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/**
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* \brief This class is used to resample audio data for many sequential frames. It maintains some data from the last
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* call to GetResampledBuffer(), so there are no pops and clicks between frames.
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*/
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class AudioResampler {
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private:
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AudioSampleBuffer *buffer;
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AudioSampleBuffer *resampled_buffer;
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AudioBufferSource *buffer_source;
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ResamplingAudioSource *resample_source;
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AudioSourceChannelInfo resample_callback_buffer;
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int num_of_samples;
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int new_num_of_samples;
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double dest_ratio;
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double source_ratio;
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bool isPrepared;
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public:
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/// Default constructor
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AudioResampler();
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/// Destructor
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~AudioResampler();
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/// Sets the audio buffer and key settings
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int SetBuffer(AudioSampleBuffer *new_buffer, double sample_rate, double new_sample_rate);
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/// Sets the audio buffer and key settings
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int SetBuffer(AudioSampleBuffer *new_buffer, double ratio);
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/// Get the resampled audio buffer
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AudioSampleBuffer* GetResampledBuffer();
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};
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}
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#endif
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