misc.h

来自「VC++视频开发实例集锦(包括“远程视频监控”"语音识别系统&quot」· C头文件 代码 · 共 44 行

//	VirtualDub - Video processing and capture application
//	Copyright (C) 1998-2001 Avery Lee
//
//	This program 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 of the License, or
//	(at your option) any later version.
//
//	This program 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 this program; if not, write to the Free Software
//	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#ifndef f_VIRTUALDUB_MISC_H
#define f_VIRTUALDUB_MISC_H

#include <mmsystem.h>

long MulDivTrunc(long a, long b, long c);
int NearestLongValue(long v, const long *array, int array_size);

// only works properly when d1,d2>0!!

long inline int64divto32(__int64 d1, __int64 d2) {
	return d2?(long)((d1+d2/2)/d2):0;
}

__int64 inline int64divround(__int64 d1, __int64 d2) {
	return d2?((d1+d2/2)/d2):0;
}

__int64 inline int64divroundup(__int64 d1, __int64 d2) {
	return d2?((d1+d2-1)/d2):0;
}

bool isEqualFOURCC(FOURCC fccA, FOURCC fccB);
FOURCC toupperFOURCC(FOURCC fcc);

#endif