AudioResampler.h

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// Copyright (c) 2008-2019 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#ifndef OPENSHOT_RESAMPLER_H
#define OPENSHOT_RESAMPLER_H
 
#include "AudioBufferSource.h"
 
#include <AppConfig.h>
#include <juce_audio_basics/juce_audio_basics.h>
#include <juce_audio_devices/juce_audio_devices.h>
 
namespace openshot {
 
    class AudioResampler {
    private:
        juce::AudioBuffer<float> *buffer;
        juce::AudioBuffer<float> *resampled_buffer;
        openshot::AudioBufferSource *buffer_source;
        juce::ResamplingAudioSource *resample_source;
        juce::AudioSourceChannelInfo resample_callback_buffer;
 
        int num_of_samples;
        int new_num_of_samples;
        double dest_ratio;
        double source_ratio;
        bool isPrepared;
 
    public:
        AudioResampler(int numChannels=2);
 
        ~AudioResampler();
 
        void SetBuffer(juce::AudioBuffer<float> *new_buffer, double sample_rate, double new_sample_rate);
 
        void SetBuffer(juce::AudioBuffer<float> *new_buffer, double ratio);
 
        juce::AudioBuffer<float>* GetResampledBuffer();
    };
 
}
 
#endif