www.pudn.com > bladeenc-0.90.0-src.zip > common.c

/* 
			(c) Copyright 1998, 1999 - Tord Jansson 
			======================================= 
 
		This file is part of the BladeEnc MP3 Encoder, based on 
		ISO's reference code for MPEG Layer 3 compression, and might 
		contain smaller or larger sections that are directly taken 
		from ISO's reference code. 
 
		All changes to the ISO reference code herein are either 
		copyrighted by Tord Jansson (tord.jansson@swipnet.se) 
		or sublicensed to Tord Jansson by a third party. 
 
	BladeEnc is free software; you can redistribute this file 
	and/or modify it under the terms of the GNU Lesser General Public 
	License as published by the Free Software Foundation; either 
	version 2.1 of the License, or (at your option) any later version. 
 
*/ 
 
/*********************************************************************** 
* 
*  Global Include Files 
* 
***********************************************************************/ 
 
#include    "common.h" 
#include	 /* 1995-07-11 shn */ 
#include	 
#include  
 
/*********************************************************************** 
* 
*  Global Variable Definitions 
* 
***********************************************************************/ 
 
/* 1: MPEG-1, 0: MPEG-2 LSF, 1995-07-11 shn */ 
double  s_freq[2][4] = {{22.05, 24, 16, 0}, {44.1, 48, 32, 0}}; 
 
/* 1: MPEG-1, 0: MPEG-2 LSF, 1995-07-11 shn */ 
int     bitratex[2][15] = { 
          {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160}, 
					{0,32,40,48,56,64,80,96,112,128,160,192,224,256,320} 
        }; 
 
 
 
 
 
/******************************************************************************* 
* 
*  Allocate number of bytes of memory equal to "block". 
* 
*******************************************************************************/ 
 
void  *mem_alloc(unsigned int block, char *item) 
{ 
 
    void    *ptr; 
 
    ptr = (void *) malloc(block*2); 
 
    memset(ptr, 0, block*2); 
 
    return(ptr); 
} 
 
 
/**************************************************************************** 
* 
*  Free memory pointed to by "*ptr_addr". 
* 
*****************************************************************************/ 
 
void    mem_free( void **ptr_addr) 
{ 
  if (*ptr_addr != NULL) 
	{ 
    free(*ptr_addr); 
    *ptr_addr = NULL; 
  } 
}