Ballofsnow: New page:

 /*    Reads parameters and compares with fourcc. Returns 0 for false, 1 for true.    author: ballofsnow   date: 17 August 2007   license: none (public domain)   target: win32...

2007-08-18T03:47:52Z

New page: <pre><nowiki> /* Reads parameters and compares with fourcc. Returns 0 for false, 1 for true. author: ballofsnow date: 17 August 2007 license: none (public domain) target: win32...

New page

<pre><nowiki>
/*

Reads parameters and compares with fourcc. Returns 0 for false, 1 for true.

author: ballofsnow
date: 17 August 2007
license: none (public domain)
target: win32 (MINGW), recommend using the free IDE from bloodshed.net
version: beta 0.1

vids offset 0x6C, 108 decimal, 4 bytes long.
fourcc offset 0x70, 112 decimal, 4 bytes long.

*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <bitset>
using namespace std;

void usage(char *argv0);
unsigned char checkvids[4]= { 0x76, 0x69, 0x64, 0x73 }; /* vids - fourcc follows */
unsigned char buffer[1024*1024];

int main (int argc, char **argv) {
FILE *vid;
char *vidname=NULL;
char *fourcc=NULL;
int rval;
printf ("fourcc compare v0.1, ballofsnow\n");

if (argc!=3) {
usage(argv[0]);
return -1;
}

/* VERIFY FOURCC EXISTS */
vidname=argv[1];
if ((vid=fopen(vidname,"rb"))==NULL) {
printf ("[-] Failed to open file \"%s\".\n", vidname);
return -1;
}
fread(buffer,1,200,vid);
if (memcmp(checkvids,buffer+108,4) != 0) {
printf ("This isn't a valid file.\n");
free(buffer);
fclose(vid);
usage(argv[0]);
return -1;
}
/* FINISHED VALIDATING */

/* COMPARE FOURCC WITH PARAMETER */
fourcc=argv[2];
if (memcmp(fourcc,buffer+112,4) == 0) {
printf("%s %s\n", fourcc, "fourcc found");
rval=1;
}
else {
rval=0;
}
/* FINISHED COMPARE */

free(buffer); // vid buffer
fclose(vid);
return rval;
}

void usage(char *argv0) {
printf ("Usage: %s <AVI file> <FOURCC>\n\n", argv0);
printf ("Returns 0 (false) or 1 (true) to %%ERRORLEVEL%%.\n");
}
</nowiki></pre>

Anri-chan/Source/fourccc.cpp - Revision history

Ballofsnow: New page:
/* Reads parameters and compares with fourcc. Returns 0 for false, 1 for true. author: ballofsnow date: 17 August 2007 license: none (public domain) target: win32...