RageSoundReader_Filter.h

/* RageSoundReader_Filter - simplify the creation of filter RageSoundReaders. */
 
#ifndef RAGE_SOUND_READER_FILTER_H
#define RAGE_SOUND_READER_FILTER_H
 
#include <memory>
#include "RageSoundReader.h"
 
class RageSoundReader_Filter : public RageSoundReader
{
  public:
    RageSoundReader_Filter(RageSoundReader* pSource)
      : m_pSource(pSource)
    {
    }
    RageSoundReader_Filter(const RageSoundReader_Filter& rhs) {
        m_pSource = std::unique_ptr<RageSoundReader>(rhs.m_pSource->Copy());
    }
 
    int GetLength() const override { return m_pSource->GetLength(); }
    int GetLength_Fast() const override { return m_pSource->GetLength_Fast(); }
    int SetPosition(int iFrame) override
    {
        return m_pSource->SetPosition(iFrame);
    }
    int Read(float* pBuf, int iFrames) override
    {
        return m_pSource->Read(pBuf, iFrames);
    }
    int GetSampleRate() const override { return m_pSource->GetSampleRate(); }
    unsigned GetNumChannels() const override
    {
        return m_pSource->GetNumChannels();
    }
    bool SetProperty(const std::string& sProperty, float fValue) override
    {
        return m_pSource->SetProperty(sProperty, fValue);
    }
    int GetNextSourceFrame() const override
    {
        return m_pSource->GetNextSourceFrame();
    }
    float GetStreamToSourceRatio() const override
    {
        return m_pSource->GetStreamToSourceRatio();
    }
    RageSoundReader* GetSource() override { return &*m_pSource; }
    std::string GetError() const override { return m_pSource->GetError(); }
 
  protected:
    std::unique_ptr<RageSoundReader> m_pSource;
};
 
#endif