ansi.h

完整的EVRC压缩解压缩算法源码,通过C-C++编译后可以运行!

/**********************************************************************
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formulating groups of 3GPP2 or any of its Organizational Partners, it 
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specifically reserve(s) the right to amend or modify the material 
contained in the Contribution. Nothing contained in the Contribution 
shall, except as herein expressly provided, be construed as conferring 
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With respect to the Software necessary for the practice of any or 
all Normative portions of the Enhanced Variable Rate Codec (EVRC) as 
it exists on the date of submittal of this form, should the EVRC be 
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Standard by any of the 3GPP2's Organizational Partners, the Source(s) 
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*******************************************************************/
 
#ifndef _ANSI_H_
#define _ANSI_H_

#define ANSI_EVRC_BOTTOM_GUARD      1   /* bottom guard for offset in residual[] */
#define ANSI_EVRC_ALL_ZEROS         1   /* erase if full or half rate packet has all-zeros contents */
#define ANSI_EVRC_ALL_ONES          1   /* mute after > 2 all-ones 8th rate packets */
#define ANSI_EVRC_SEED              1   /* init random seed once at start of frame */
#define ANSI_EVRC_DDELAY_CHECK      1   /* sanity check for delta delay */
#define ANSI_EVRC_LSP_EXPANSION     1   /* expand LSPs during frame erasures */

#endif