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/* -----------------------------------------------------------------
GEM - Graphics Environment for Multimedia
Load an digital video (like AVI, Mpeg, Quicktime) into a pix block
(OS independant parent-class)
Copyright (c) 1997-1999 Mark Danks. mark@danks.org
Copyright (c) Günther Geiger. geiger@epy.co.at
Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
-----------------------------------------------------------------*/
#ifndef _INCLUDE_GEMPLUGIN__RECORDV4L2_RECORDV4L2_H_
#define _INCLUDE_GEMPLUGIN__RECORDV4L2_RECORDV4L2_H_
#include "plugins/recordBase.h"
#if defined HAVE_LINUX_VIDEODEV2_H
# define HAVE_VIDEO4LINUX2
# include <linux/videodev2.h>
#endif
/*---------------------------------------------------------------
-------------------------------------------------------------------
CLASS
recordV4L2
class for outputting video using a v4l2 loopback device
KEYWORDS
pix record movie
DESCRIPTION
-----------------------------------------------------------------*/
namespace gem { namespace plugins {
class GEM_EXPORT recordV4L2 : public recordBase {
public:
//////////
// Constructor
recordV4L2(void);
////////
// Destructor
/* free what is apropriate */
virtual ~recordV4L2(void);
#if defined HAVE_VIDEO4LINUX2
//////////
// close the movie file
// stop recording, close the file and clean up temporary things
virtual void close(void);
//////////
// open a movie up
// open the recordV4L2 "filename" (think better about URIs ?)
// returns TRUE if opening was successfull, FALSE otherwise
virtual bool open(const std::string filename);
//////////
// initialize the encoder
// dummyImage provides meta-information (e.g. size) that must not change during the encoding cycle
// (if it does, abort the recording session)
// framedur is the duration of one frame in [ms]
//
// returns TRUE if init was successfull, FALSE otherwise
virtual bool init(const imageStruct* dummyImage, const int framedur);
//////////
// compress and write the next frame
/* this is the core-function of this class !!!!
* when called it returns something depending on success
* (what? the framenumber and -1 (0?) on failure?)
*/
virtual bool putFrame(imageStruct*);
virtual bool setCodec(const std::string name);
/**
* get a list of supported codecs (short-form names, e.g. "mjpa")
*/
virtual std::vector<std::string>getCodecs(void);
private:
int m_fd;
imageStruct m_image;
bool m_init;
int m_palette;
#endif /* V4L2 */
};
};};
#endif // for header file
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