skipbuffer.h

#ifndef CVD_INCLUDE_SKIPBUFFER_H
#define CVD_INCLUDE_SKIPBUFFER_H

#include <cvd/videobuffer.h>

namespace CVD
{


template <typename T>
class SkipBuffer : public VideoBuffer<T>
{
    public:
    typedef DeinterlaceBufferFields Fields;
    SkipBuffer(CVD::VideoBuffer<T>& buf, bool do_seek, double seek, int drop_)
        : VideoBuffer<T>(buf.type())
        , m_vidbuf(buf)
        , drop(drop_)
    {
        if(do_seek)
            buf.seek_to(seek);
    }

    ImageRef size()
    {
        return m_vidbuf.size();
    }

    CVD::VideoFrame<T>* get_frame()
    {
        CVD::VideoFrame<T>* f = m_vidbuf.get_frame();

        for(int i = 0; i < drop && (m_vidbuf.type() == VideoBufferType::Flushable || m_vidbuf.frame_pending()); i++)
        {
            m_vidbuf.put_frame(m_vidbuf.get_frame());
        }

        return f;
    }

    virtual RawVideoBuffer* source_buffer()
    {
        return &m_vidbuf;
    }

    void put_frame(CVD::VideoFrame<T>* f)
    {
        return m_vidbuf.put_frame(f);
    }

    virtual bool frame_pending()
    {
        return m_vidbuf.frame_pending();
    }

    virtual void seek_to(double t)
    {
        return m_vidbuf.seek_to(t);
    }

    virtual double frame_rate()
    {
        return m_vidbuf.frame_rate();
    }

    private:
    CVD::VideoBuffer<T>& m_vidbuf;
    int drop;
};
}

#endif