encoder.h

radius协议源码÷The Radius Stack will connect to a Radius Server. This stack implementation is built upo

/*encoder.h       (c) 1999-2000 Derek J Smithies ([e-mail])
 *                           Indranet Technologies ltd ([e-mail])
 *                           Under the terms of the Gnu Public License (GPL)
 *
 * This file is derived from vic, http://www-nrg.ee.lbl.gov/vic/
 * Their copyright notice is below.
 */
/*
 * Copyright (c) 1995 The Regents of the University of California.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 * 	This product includes software developed by the Network Research
 * 	Group at Lawrence Berkeley National Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#) $Header: /home/cvsroot/openh323/src/vic/encoder.h,v 1.2 2000/02/04 05:16:23 craigs Exp $ (LBL)
 */

#ifndef vic_encoder_h
#define vic_encoder_h
#include "config.h"

class Transmitter;

#include "videoframe.h"

class DCTFrame : public VideoFrame {
    public:
	inline DCTFrame(short* bp, u_char* crv,
		int w, int h, int q = -1) :
		VideoFrame((u_char *)bp, crv, w, h), crvec_(crv), q_(q) {}

	const u_char *crvec_;
	int q_;			// original q (if applicable)
};

class Encoder {
    public:
	virtual int consume(const VideoFrame*)
           {return 0; };

	void SetSize(int w, int h) {
		width = w;
		height = h;
		framesize = w * h;
	}
    protected:
	Encoder(Transmitter *T)
	  {width=0;  height=0; framesize=0;
           tx_ = T;}

	Transmitter* tx_;       //Given a transmitter object at creation.

	inline int SameSize(const VideoFrame* vf) {
		return ((vf->width == width) && (vf->height == height));
	}
	int width;
	int height;
	int framesize;
};


#endif