www.pudn.com > g7x.rar > enc_g723_dmy.c
/********************************************************************** MPEG-4 Audio VM Coder core (G723-based) This software module was originally developed by Sebastien Etienne (CCETT) and edited by in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and 3. This software module is an implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio standards free license to this software module or modifications thereof for use in hardware or software products claiming conformance to the MPEG-2 NBC/ MPEG-4 Audio standards. Those intending to use this software module in hardware or software products are advised that this use may infringe existing patents. The original developer of this software module and his/her company, the subsequent editors and their companies, and ISO/IEC have no liability for use of this software module or modifications thereof in an implementation. Copyright is not released for non MPEG-2 NBC/MPEG-4 Audio conforming products. The original developer retains full right to use the code for his/her own purpose, assign or donate the code to a third party and to inhibit third party from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products. This copyright notice must be included in all copies or derivative works. Copyright (c) 1997. Source file: dec_g723_dmy.c $Id: enc_g723_dmy.c,v 1.6 1999/04/23 16:02:05 purnhage Exp $ Required modules: common.o common module bitstream.o bits stream module Authors: SE Sebastien Etienne, Jean Bernard Rault, CCETTChanges: 05-may-97 SE g723 core 13-may-97 SE integration in the VM. **********************************************************************/ #include #include #include #include "buffersHandle.h" /* handler, defines, enums */ #include "common_m4a.h" /* common module */ #include "bitstream.h" /* bit stream module */ /* HP 971110 */ #include "enc_g723.h" /* encoder cores */ #define PROGVER "ITU-T G.723.1 Floating Point Speech Coder ANSI C Source Code. Version 5.1F" /* ---------- declarations ---------- */ /* ---------- functions ---------- */ /* EncG723Info() */ /* Get info about G723-based encoder core. */ char *EncG723Info ( FILE *helpStream) /* in: print encPara help text to helpStream */ /* if helpStream not NULL */ /* returns: core version string */ { if (helpStream != NULL) fprintf(helpStream, "g723 encoder dummy module , g723 encoder not compiled in\n"); return "g723 encoder dummy module"; } /* EncG723Init() */ /* Init G723-based coder core. */ void EncG723Init ( int numChannel, /* in: num audio channels */ float fSample, /* in: sampling frequency [Hz] */ float bitRate, /* in: total bit rate [bit/sec] */ char *encPara, /* in: coder parameter string */ long encNumSample, /* in : number of samples to be encoded */ int *frameNumSample, /* out: num samples per frame */ int *delayNumSample, /* out: decoder delay (num samples) */ BsBitBuffer *bitHeader) /* out: header from bit stream */ { CommonExit(1,"EncG723Init: dummy"); } /* EncG723Frame() */ /* Code one bit stream frame into one audio frame with */ /* G723-based decoder core. */ void EncG723Frame ( float **sampleBuf, /* in: audio frame samples */ /* sampleBuf[numChannel][frameNumSample] */ BsBitBuffer *bitBuf, /* out: bit stream frame */ /* or NULL during encoder start up */ int frameAvailNumBit, /* in: total num bits available for */ /* this frame (incl. bit reservoir) */ int frameNumBit, /* in: average num bits per frame */ int frameMaxNumBit, /* in: max num bits per frame */ int numSample) /* in: number of sample red */ { CommonExit(1,"EncG723Frame: dummy"); } /* end of enc_g723_dmy.c */