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	scan: Estimate length (sample count) of a mpeg file and compare to length from exact scan.

	copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
	see COPYING and AUTHORS files in distribution or
	initially written by Thomas Orgis

/* Note the lack of error checking here.
   While it would be nicer to inform the user about troubles, libmpg123 is designed _not_ to bite you on operations with invalid handles , etc.
  You just jet invalid results on invalid operations... */

#include <mpg123.h>
#include <stdio.h>

int _tmain(int argc, _TCHAR* argv[])
	mpg123_handle *m;
	int i;
	if(argc < 2)
		fprintf(stderr, "\nI will give you the estimated and exact sample lengths of MPEG audio files.\n");
		fprintf(stderr, "\nUsage: %ls <mpeg audio file list>\n\n", argv[0]);
		return -1;
	m = mpg123_new(NULL, NULL);
	mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0); /* New in library version 0.0.1 . */
	for(i = 1; i < argc; ++i)
		off_t a, b;
		mpg123_topen(m, argv[i]);

		a = mpg123_length(m);		
		b = mpg123_length(m);


		printf("File %i: estimated %li vs. scanned %li\n", i, (long)a, (long)b);

	return 0;