opengl program - mpeg output

#include <iostream>#include <stdlib.h>#include <fstream>#include "avcodec.h"using namespace std;int main(int argc, char *argv[]){	//	Test a video encode		AVCodec *codec;	AVCodecContext *c = NULL;	AVFrame *picture;	int CompBufSize, out_size;	unsigned char *CompBuf;	int PicBufSize;	unsigned char *PicBuf;	int i, j, fr;	ofstream fout;	char TheString [1024];		//	Initialize avcodec	avcodec_init ();	//	And register all codecs	avcodec_register_all ();	cout << "avcodec version " << avcodec_version () << endl;	cout << "avcodec build " << avcodec_build () << endl;	if (avcodec_build ()!= LIBAVCODEC_BUILD)	{	    cout << "Mismatched buid!!" << endl;		cout << "Expected build = " << LIBAVCODEC_BUILD << endl;		return (-1);	}				//	stick with MPEG1, or I need to include the avformat library	codec = avcodec_find_encoder (CODEC_ID_MPEG1VIDEO);	//codec = avcodec_find_encoder (CODEC_ID_MJPEG);	//codec = avcodec_find_encoder (CODEC_ID_MSMPEG4V3);	if (!codec)	{	    //	something's wrong	    cout << "Oops, could not find the desired CODEC" << endl;	    system("PAUSE");	    return (-1);	}			//	OK, I have the codec I want, get the context and frame info started	c = avcodec_alloc_context ();	picture = avcodec_alloc_frame ();		//	configure my desired video stream params	c->bit_rate = 100000;	/*	c->bit_rate_tolerance = c->bit_rate;    c->qmin= 1;    c->qmax= 31;    c->max_qdiff = 3;    */    c->me_method= ME_EPZS;	c->gop_size = 15;	//c->max_b_frames = 1;	c->width = 352;	c->height = 240;	c->pix_fmt = PIX_FMT_RGB24;	c->frame_rate = 2997;	c->frame_rate_base = 100;		//	and open it	if (avcodec_open (c, codec) < 0)	{	    //	more bad	    cout << "Bad boy, could not open " << codec->name << endl;	    system("PAUSE");	    return (-1);	}    		cout << "Opened " << codec->name << endl;	system("PAUSE");		//	OK, ready to begin	fout.open ("test.mpg", ios::out | ios::binary);		//	get the buffer RAM	CompBufSize = 1000000;	CompBuf = new unsigned char [CompBufSize];	PicBufSize = (c->width * c->width);	PicBuf = new unsigned char [PicBufSize * 3];		//	Set up the frame	picture->data[0] = PicBuf;	picture->data[1] = picture->data[0] + PicBufSize;	picture->data[2] = picture->data[1] + PicBufSize;	picture->linesize[0] = c->width;	picture->linesize[1] = c->width;	picture->linesize[2] = c->width;	//picture->quality = 30;		//	save some pictures	for (fr = 0; fr < 300; ++fr)	{	    //	this frame	    for (j = 0; j < PicBufSize * 3; ++j)	    	PicBuf [j] = (3 * j + 7 * fr) & 255;	    			//	and encode it	    out_size = avcodec_encode_video (c, CompBuf, CompBufSize, picture);	    fout.write ((char*)CompBuf, out_size);	    //cout << "frame size = " << out_size << endl;	}    		//	and latent data?	while (out_size)	{	    out_size = avcodec_encode_video (c, CompBuf, CompBufSize, NULL);	    fout.write ((char*)CompBuf, out_size);	    //cout << "finishing size = " << out_size << " ";	}   		//fout.write ("\0x00\0x00\0x01\0xb7", 4);		avcodec_string (TheString, 1023, c, true); 	cout << TheString << endl;		//	clean up	fout.close ();	avcodec_close (c);	free (c);	free (picture);	  system("PAUSE");	  return 0;}