houxiao
2017-06-13 4b914a5d7e3d7971cb3e3ed49047fa331bd74da3
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/* ---------------------------------------------------------------------------
** This software is in the public domain, furnished "as is", without technical
** support, and with no warranty, express or implied, as to its usefulness for
** any purpose.
**
** V4l2Output.h
** 
** V4L2 Output wrapper 
**
** -------------------------------------------------------------------------*/
 
 
#ifndef V4L2_OUTPUT
#define V4L2_OUTPUT
 
#include "V4l2Access.h"
 
// ---------------------------------
// V4L2 Output
// ---------------------------------
class V4l2Output : public V4l2Access
{        
    protected:
        V4l2Output(V4l2Device* device);
 
    public:
        static V4l2Output* create(const V4L2DeviceParameters & param, IoType iotype = V4l2Access::IOTYPE_MMAP);
    
        size_t write(char* buffer, size_t bufferSize);
        int    isWritable(timeval* tv);
};
 
#endif