itsmattkc
6f0d72c05d
While planar audio cannot be used for playback, it's much easier for processing. This should lead to cleaner and easier to write code in the future.
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
#ifndef SAMPLEBUFFER_H
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#define SAMPLEBUFFER_H
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#include <memory>
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#include "common/constructors.h"
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#include "render/audioparams.h"
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class SampleBuffer;
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using SampleBufferPtr = std::shared_ptr<SampleBuffer>;
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/**
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* @brief A buffer of audio samples
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*
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* Audio samples in this structure are always stored in PLANAR (separated by channel). This is done to simplify audio
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* rendering code. This replaces the old system of using QByteArrays (containing packed audio) and while SampleBuffer
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* replaces many of those in the rendering/processing side of things, QByteArrays are currently still in use for
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* playback, including reading to and from the cache.
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*/
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class SampleBuffer
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{
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public:
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SampleBuffer();
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virtual ~SampleBuffer();
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static SampleBufferPtr Create();
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static SampleBufferPtr CreateAllocated(const AudioRenderingParams& audio_params, int samples_per_channel);
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static SampleBufferPtr CreateFromPackedData(const AudioRenderingParams& audio_params, const QByteArray& bytes);
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DISABLE_COPY_MOVE(SampleBuffer)
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const AudioRenderingParams& audio_params() const;
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void set_audio_params(const AudioRenderingParams& params);
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const int &sample_count_per_channel() const;
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void set_sample_count_per_channel(const int &sample_count_per_channel);
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float** data();
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float* channel_data(int channel);
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float* sample_data(int index);
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bool is_allocated() const;
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void allocate();
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void destroy();
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void reverse();
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void speed(double speed);
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QByteArray toPackedData() const;
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private:
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static void allocate_sample_buffer(float*** data, int nb_channels, int nb_samples);
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static void destroy_sample_buffer(float*** data, int nb_channels);
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AudioRenderingParams audio_params_;
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int sample_count_per_channel_;
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float** data_;
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};
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Q_DECLARE_METATYPE(SampleBufferPtr)
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#endif // SAMPLEBUFFER_H
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