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A few headers contained #defines that were intended to work around issues with the JUCE library headers, but those things are best handled in other ways.
85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/**
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* @file
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* @brief Header file for AudioResampler class
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* @author Jonathan Thomas <jonathan@openshot.org>
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*
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* @ref License
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*/
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/* LICENSE
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*
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* Copyright (c) 2008-2019 OpenShot Studios, LLC
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* <http://www.openshotstudios.com/>. This file is part of
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* OpenShot Library (libopenshot), an open-source project dedicated to
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* delivering high quality video editing and animation solutions to the
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* world. For more information visit <http://www.openshot.org/>.
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*
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* OpenShot Library (libopenshot) is free software: you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* OpenShot Library (libopenshot) is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPENSHOT_RESAMPLER_H
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#define OPENSHOT_RESAMPLER_H
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#include "AudioBufferSource.h"
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#include "Exceptions.h"
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#include "JuceHeader.h"
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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.
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*
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* It maintains some data from the last call to GetResampledBuffer(), so there
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* 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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juce::AudioSampleBuffer *buffer;
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juce::AudioSampleBuffer *resampled_buffer;
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openshot::AudioBufferSource *buffer_source;
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juce::ResamplingAudioSource *resample_source;
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juce::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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/// @brief Sets the audio buffer and key settings
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/// @param new_buffer The buffer of audio samples needing to be resampled
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/// @param sample_rate The original sample rate of the buffered samples
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/// @param new_sample_rate The requested sample rate you need
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void SetBuffer(juce::AudioSampleBuffer *new_buffer, double sample_rate, double new_sample_rate);
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/// @brief Sets the audio buffer and key settings
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/// @param new_buffer The buffer of audio samples needing to be resampled
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/// @param ratio The multiplier that needs to be applied to the sample rate (this is how resampling happens)
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void SetBuffer(juce::AudioSampleBuffer *new_buffer, double ratio);
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/// Get the resampled audio buffer
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juce::AudioSampleBuffer* GetResampledBuffer();
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};
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}
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#endif
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