#include<stdio.h>
#include<stdlib.h>

unsigned long ltob(unsigned long n){
	unsigned long m = n ? ltob(n /2) : 0;
	printf("%d", (int)(n % 2));
	return m;
}

int main(int argc, char** argv){
	FILE *f_point;
	unsigned char record;
	unsigned int mp3header = 4294677700;
	unsigned int mp3test = 0;

	f_point=fopen(argv[1],"rb");
	if(!f_point){
		printf("Unable to open file!");
		return 1;
	}

	fseek(f_point,0,SEEK_END);
	long size = ftell(f_point);
	rewind(f_point);

	printf("Size of file %ldb\n", size);
	unsigned char *b = malloc(size+1);

	if(1 !=fread(b,size, 1, f_point)){
		fclose(f_point);
		free(b);
		printf("Error reading file\n");
		return 1;
	}

	long i = 0;
	long last = 0;
	int x = 0;
	while(i < (size - 5)){
		if(b[0+i]==0xFF && b[1+i]==0xFB && b[3+i]==0xC4){
			last = i;
			printf("\t\tMP3 Header (%ld) with bitrate %X\n",i, b[2+i]);
		}
		if(b[0+i]==0x4C && b[1+i]==0x41 && b[2+i]==0x4d && b[3+i]==0x45){
			//b[4+i]==0x33 && b[5+i]==0x2E && b[6+i]==0x39 && b[7+i]==0x38
			printf("LAME located at %ld distance (%ld)\n", i, i - last);
			
			if(i >= 141){
				if(b[i-141]==0xFF && b[i-140]==0xFB && b[i-138]==0xC4){
					printf("\tHigh Possiblity of the start of an mp3 is here %ld | %X%X%X%X\n", i-141, b[i-141],b[i-140],b[i-139],b[i-138]);
					x=1;
				}
			}

			if(i >= 35){
				if(b[i-35]==0xFF && b[i-34]==0xFB && b[i-32]==0xC4){
					printf("\tHigh Possiblity of the start of an mp3 is here %ld | %X%X%X%X\n", i-35, b[i-35],b[i-34],b[i-33],b[i-32]);
					x=1;
				}
			}

			if(!x){
				printf("\tMaybe the end of an mp3?\n");
			}

			x=0;
		}
		i++;
	}

	free(b);
	fclose(f_point);
	return 0;
}