#ifndef foosydneyg711hfoo #define foosydneyg711hfoo /* g711.h - include for G711 u-law and a-law conversion routines ** ** Copyright (C) 2001 Chris Bagwell ** ** Permission to use, copy, modify, and distribute this software and its ** documentation for any purpose and without fee is hereby granted, provided ** that the above copyright notice appear in all copies and that both that ** copyright notice and this permission notice appear in supporting ** documentation. This software is provided "as is" without express or ** implied warranty. */ /** Copied from sox */ #include #ifdef FAST_ALAW_CONVERSION extern uint8_t _sa_13linear2alaw[0x2000]; extern int16_t _sa_alaw2linear16[256]; #define sa_13linear2alaw(sw) (_sa_13linear2alaw[(sw + 0x1000)]) #define sa_alaw2linear16(uc) (_sa_alaw2linear16[uc]) #else unsigned char sa_13linear2alaw(int16_t pcm_val); int16_t sa_alaw2linear16(unsigned char); #endif #ifdef FAST_ULAW_CONVERSION extern uint8_t _sa_14linear2ulaw[0x4000]; extern int16_t _sa_ulaw2linear16[256]; #define sa_14linear2ulaw(sw) (_sa_14linear2ulaw[(sw + 0x2000)]) #define sa_ulaw2linear16(uc) (_sa_ulaw2linear16[uc]) #else unsigned char sa_14linear2ulaw(int16_t pcm_val); int16_t sa_ulaw2linear16(unsigned char); #endif #endif