mfsname.cc

torch tracking code, it is a good code

const char *help = "\
progname: mfsname.cc\n\
code2html: This program reads a  video file with timecode enocded in the frames and print the timecode-derived name to stdout.\n\
\n\
  This program is designed to be called by a perl script to rename avi\n\
  according to a standard convention.  From within perl, it is called\n\
  as follows:\n\
\n\
	`mfsname $sessionDir/$dir/$filename` =~ /(^T.*_T.*$)/m;\n\
\n\
  in order to filter out any junk debugging statements that various\n\
  libraries might print out before the actual name is printed.\n\
\n\
version: Torch3 vision2.0, 2002-2005\n\
(c) Pierre Wellner ([e-mail]) and Sebastien Marcel ([e-mail])\n";

// system
#include <sys/stat.h>
 
// image
#include "ImageRgb.h"
#include "ImageGray.h"

// video
#include "ffmpegVideoFile.h"
#include "vitcTimeCode.h"

using namespace Torch;

/*------------------------------------------------------------------------
 * return pointer to file extension including the "."
  ------------------------------------------------------------------------*/
char *GetFileExtension(char *pz)
{
  int i;
  
  if (pz == 0)
    return "";

  i = strlen(pz);
  while ((i >= 0) && (pz[i] != '.'))
    i--;
  
  if (i >= 0)
    return &pz[i];
  else
    return "";
	 
} // end GetFileExtension

int main(int argc, char *argv[])
{
	char *filename_in = "";
	char *pzExtension = NULL;
	unsigned numberOfFrames = 0;
	char pzNewName[1000] = "";
	struct stat statbuf;

	if (argc < 2)
	{
	    fprintf(stderr, "usage: %s <video avi filename>\n", argv[0]);
	    printf("%s", help);
	    return -1;
	}
	
	filename_in = argv[1];
	
	if ( 0 != stat(filename_in, &statbuf))
	{
	    fprintf(stderr, "ERROR: bad filename \"%s\"\n", filename_in);
	    exit (-1);
	}

	pzExtension = GetFileExtension(filename_in);

	//
	ffmpegVideoFile *movie = new ffmpegVideoFile();

	movie->open(filename_in);
	
	numberOfFrames = movie->getnframes();
	if (numberOfFrames <= 0)
	{
		fprintf(stderr, "ERROR: bad filename \"%s\"\n", filename_in);
		delete movie;
		exit (-1);
	}
	
	if(movie->read() != true)
	{
		delete movie;
		return -1;
	}

	int width = movie->getwidth();
	int height = movie->getheight();
	
	ImageRgb *image = new ImageRgb(width, height);
	ImageGray *grayimage = new ImageGray(width, height);
	vitcTimeCode *timecode = new vitcTimeCode(width, height);

	grayimage->copyFrom(width, height, movie->pixmap, "rgb");
	timecode->reset(grayimage->pixmap);
	
	
	sprintf(pzNewName,"T%02d%02d%02d.%03d_T%02d%02d%02d.%03d",
		timecode->hh(),  // hours
		timecode->mm(),  // minutes
		timecode->ss(),  // seconds
		timecode->ff() * (1000 / 25),   // milliseconds from frames
		
		numberOfFrames / (25 * 60 * 60),      // hours
		(numberOfFrames / (25 * 60)) % 60,    // minutes
		(numberOfFrames / 25) % 60,           // seconds
		(numberOfFrames % 25) * (1000 / 25)   // milliseconds
		);
	
	
	// cleanup
	movie->close();
	delete image;
	delete grayimage;
	
	printf("%s\n", pzNewName);
	
	return 0;
	
} // end main()