debug.c
上传用户:aoeyumen
上传日期:2007-01-06
资源大小:3329k
文件大小:1k
- /*
- * debug.c
- *
- * Copyright (C) Aaron Holtzman <aholtzma@ess.engr.uvic.ca> - Nov 1999
- *
- * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
- *
- * mpeg2dec 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.
- *
- * mpeg2dec 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,
- *
- */
- #include <stdlib.h>
- #include "debug.h"
- static int debug_level = -1;
- // Determine is debug output is required.
- // We could potentially have multiple levels of debug info
- int debug_is_on(void)
- {
- char *env_var;
-
- if(debug_level < 0)
- {
- env_var = getenv("MPEG2_DEBUG");
- if (env_var)
- {
- debug_level = 1;
- }
- else
- debug_level = 0;
- }
-
- return debug_level;
- }
- //If you don't have gcc, then ya don't get debug output
- #ifndef __GNUC__
- void dprintf(char fmt[],...)
- {
- int foo = 0;
- }
- #endif