ref: be960d187cbab362628859e5663035f21a54c4c7
dir: /src/g711.h/
/* 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. */ #ifdef FAST_ALAW_CONVERSION extern uint8_t _st_13linear2alaw[0x2000]; extern int16_t _st_alaw2linear16[256]; #define st_13linear2alaw(sw) (_st_13linear2alaw[(sw + 0x1000)]) #define st_alaw2linear16(uc) (_st_alaw2linear16[uc]) #else unsigned char st_13linear2alaw(int16_t pcm_val); REGPARM(1); int16_t st_alaw2linear16(unsigned char); REGPARM(1); #endif #ifdef FAST_ULAW_CONVERSION extern uint8_t _st_14linear2ulaw[0x4000]; extern int16_t _st_ulaw2linear16[256]; #define st_14linear2ulaw(sw) (_st_14linear2ulaw[(sw + 0x2000)]) #define st_ulaw2linear16(uc) (_st_ulaw2linear16[uc]) #else unsigned char st_14linear2ulaw(int16_t pcm_val); REGPARM(1); int16_t st_ulaw2linear16(unsigned char); REGPARM(1); #endif