/*
 * 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.
 *
 * @(#) $Header$ (LBL)
 */

#ifndef vic_module_h
#define vic_module_h

#include "vic_tcl.h"
#include "config.h"
#include "pktbuf-rtp.h"
#include "transmitter.h"

class Transmitter;

class RTP_BufferPool;
class BufferPool;
class pktbuf;

class VideoFrame {
    public:
	inline VideoFrame(u_int32_t ts, u_int8_t* bp, int w, int h,
			  int layer) :
		ts_(ts), bp_(bp), width_(w), height_(h), layer_(layer) { }

	u_int32_t ts_;
	u_int8_t* bp_;
	int width_;
	int height_;
	int layer_;
};

class YuvFrame : public VideoFrame {
    public:
	    inline YuvFrame(u_int32_t ts, u_int8_t* bp, u_int8_t* crvec,
			int w, int h, int layer=0) :
			VideoFrame(ts, bp, w, h, layer), crvec_(crvec) {}

	    const u_int8_t* crvec_;
};

class JpegFrame : public VideoFrame {
    public:
	inline JpegFrame(u_int32_t ts, u_int8_t* bp, int len, int q, int type,
			int w, int h) :
		VideoFrame(ts, bp, w, h, 0), len_(len), q_(q), type_(type) {}
	int len_;
	int q_;
	int type_;
};

class DCTFrame : public VideoFrame {
    public:
	inline DCTFrame(u_int32_t ts, short* bp, u_int8_t* crv,
		int w, int h, int q = -1) :
		VideoFrame(ts, (u_int8_t*)bp, w, h, 0), crvec_(crv), q_(q) {}

	const u_int8_t *crvec_;
	int q_;			// original q (if applicable)
};

class H261Frame : public VideoFrame {
    public:
	inline H261Frame(u_int32_t ts, short* bp,int len,int w, int h) :
		VideoFrame(ts, (u_int8_t*)bp, w, h, 0),len_(len) {}
        /* additional vars here. */
	int len_;
};

class CellBFrame : public VideoFrame {
    public:
	inline CellBFrame(u_int32_t ts, short* bp,int len,int w, int h) :
		VideoFrame(ts, (u_int8_t*)bp, w, h, 0),len_(len) {}
        /* additional vars here. */
	int len_;
};

#define FT_HW		0x80
#define FT_YUV_420	1
#define FT_YUV_422	2
#define FT_YUV_CIF	3
#define FT_JPEG		(1|FT_HW)
#define FT_DCT		4
#define FT_H261		(5|FT_HW)
#define FT_CELLB	(6|FT_HW)
#define FT_RAW		7
#define FT_LDCT		8
#define FT_PVH		9

class Module : public TclObject {
    public:
	virtual int consume(const VideoFrame*) = 0;
	virtual int command(int argc, const char*const* argv);
	inline int ft() const { return (ft_); }
    protected:
	Module(int ft);
	static int atoft(const char* s);
	static const char* fttoa(int ft);
	inline void size(int w, int h) {
		width_ = w;
		height_ = h;
		framesize_ = w * h;
	}
	inline int samesize(const VideoFrame* vf) {
		return (vf->width_ == width_ && vf->height_ == height_);
	}
	Module* target_;
	int width_;
	int height_;
	int framesize_;
	int ft_;		/* stream type: 422/420/cif/jpeg etc. */
};

class TransmitterModule : public Module {
    public:
	~TransmitterModule();
	virtual int command(int argc, const char*const* argv);
    protected:
	TransmitterModule(int ft);
	Transmitter* tx_;
	RTP_BufferPool* pool_;
};

#endif
