/** * @file   adin_netaudio.c * * <JA> * @brief  ネットワ〖ク掐蝸¨NetAudio/DatLink サ〖バからの不蘭掐蝸 * * 掐蝸ソ〖スとして·DatLink に身擄の NetAudio サ〖バを蝗脫する * 你レベル簇眶ですˉこれを脫いることで DatLink の掐蝸を * 木儡千急することができますˉ * NetAudio がインスト〖ルしてあるホストで configure することで * コンパイルされますˉ * * 簇眶の悸攣は adin_na.c で年盜されていますˉ * </JA> * <EN> * @brief  Audio input from NetAudio/DatLink server * * Low level I/O functions for audio input via the NetAudio server. * NetAudio is a part of DatLink product, and this feature enables * direct live input recognition via DatLink.  This file will be * compiled if NetAudio headers and libraries are located on the machine. *  * The actual procedure are defined in adin_na.c. * </EN> * * @author Akinobu LEE * @date   Sun Feb 13 19:50:55 2005 * * $Revision: 1.2 $ *  *//* * Copyright (c) 1991-2007 Kawahara Lab., Kyoto University * Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology * Copyright (c) 2005-2007 Julius project team, Nagoya Institute of Technology * All rights reserved *//* Tested with DAT deck, DatLink hardware and NetAudio library   on Solaris2.5.1  *//* because of `boolean' type conflict in sentlib and datlink includes, *//* there are only wrappers. The core functions are defined in adin_na.c */#include <sent/stddefs.h>#include <sent/adin.h>/**  * Connection initialization: check connectivity and open for recording. *  * @param sfreq [in] required sampling frequency * @param arg [in] server device name string to connect *  * @return TRUE on success, FALSE on failure. */booleanadin_netaudio_standby(int sfreq, void *arg){  char *server_devname;  server_devname = arg;  if (NA_standby(sfreq, server_devname) == 0) return(FALSE); /* error */  return(TRUE);}/**  * Start recording. *  * @return TRUE on success, FALSE on failure. */booleanadin_netaudio_begin(){  NA_start();  return(TRUE);}/**  * Stop recording. *  * @return TRUE on success, FALSE on failure. */booleanadin_netaudio_end(){  NA_stop();  return(TRUE);}/** * @brief  Read samples from the daemon. *  * Try to read @a sampnum samples and returns actual number of recorded * samples currently available.  This function will block until * at least one sample can be obtained. *  * @param buf [out] samples obtained in this function * @param sampnum [in] wanted number of samples to be read *  * @return actural number of read samples, -2 if an error occured. */intadin_netaudio_read(SP16 *buf, int sampnum){  int cnt;  cnt = NA_read(buf, sampnum);  if (cnt < 0) {    jlog("Error: adin_na: failed to read sample\n");    return(-2);			/* return negative on error */  }  return(cnt);}