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/*
* scan_packet_headers.c
*
* Copyright (C) Peter Schlaile - January 2001
*
* This file is part of libdv, a free DV (IEC 61834/SMPTE 314M)
* codec.
*
* libdv is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your
* option) any later version.
*
* libdv is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* The libdv homepage is http://libdv.sourceforge.net/.
*/
#include <libdv/dv_types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(int argc, const char** argv)
{
int in_ren;
int in_cap;
unsigned char buf_ren[80];
unsigned char buf_cap[80];
int dif_block_count = 0;
int vid_count = 0;
if (argc != 3) {
fprintf(stderr, "Usage: steal_header in_rendered in_captured "
"> out.dv\n");
return -1;
}
in_ren = open(argv[1], O_RDONLY);
in_cap = open(argv[2], O_RDONLY);
assert(in_ren != -1 && in_cap != -1);
while (read(in_ren, buf_ren, 80) == 80 &&
read(in_cap, buf_cap, 80) == 80) {
if (dif_block_count < 6) {
write(STDOUT_FILENO, buf_cap, 80);
} else {
if (!vid_count) {
write(STDOUT_FILENO, buf_ren, 80);
} else {
buf_ren[0] = buf_cap[0];
buf_ren[1] = buf_cap[1];
buf_ren[2] = buf_cap[2];
write(STDOUT_FILENO, buf_ren, 80);
}
vid_count++;
vid_count %= 16;
}
dif_block_count++;
dif_block_count %= 150;
}
return 0;
}
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