say.cpp

multi-line Adjunct Communication Server

// Copyright (C) 1999-2000 Open Source Telecom Corporation
//  
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software 
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// As a special exception to the GNU General Public License, permission is
// granted for additional uses of the text contained in its release
// of ACS as noted here.
//
// This exception is that permission is hereby granted to link ACS with
// the Pika MonteCarlo static libraries to produce a executable image
// without requiring MonteCarlo itself to be supplied in source form so
// long as each source file so linked contains this exclusion.
//
// This exception does not however invalidate any other reasons why
// the resulting executable file might be covered by the GNU General
// public license or invalidate the licensing requirements of any
// other component or library.
//
// This exception applies only to the code released by OST under the
// name ACS.  If you copy code from other releases into a copy of
// ACS, as the General Public License permits, the exception does not
// apply to the code that you add in this way.  To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
//
// If you write modifications of your own to ACS, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice, at which
// point the terms of your modification would be covered under the GPL
// as explicitly stated in "COPYING".

#include <config.h>
#include <cc++/file.h>
#include <keydata.h>
#include <aufile.h>
#include <syslog.h>
#include <debug.h>
#include <misc.h>
#include <vocab.h>
#include "pika.h"
#include "audio.h"

void Trunk::StopSay(EventRecord *er)
{
	switch(er->event)
	{
	case UM_EVENT_ENTER_STATE:
		Trace("saystop");
		if(!playing)
			break;

		PK_AUDIO_Reset(hDsp);
		PK_VP_DisableDTMFKeyDownEvent(hDsp);
		playing = false;
	case PK_AUDIO_RETURN_BUFFER:
		setTimer(60);
	case UM_EVENT_STOP_STATE:
		return;
	case PK_AUDIO_OUTPUT_IDLE:
	case PK_EVENT_TIMER_EXPIRED:
		endTimer();
		break;
	default:
		Default(er);
		return;
	}
	scrExecute();
}

void Trunk::Say(EventRecord *er)
{
	int rtn;
	char *opt;
	WORD *word;
	int format, sampling;
	long offset;
	AUFILE *au;

	switch(er->event)
	{
	case UM_EVENT_STOP_STATE:
		setHandler(&Trunk::StopSay);
		return;
	
	case UM_EVENT_ENTER_STATE:
		Trace("say");
	case PK_AUDIO_OUTPUT_IDLE:
		playing = false;
		if(!vocab)
		{
			scrError("no-vocabulary");
			return;
		}
		newWord();
		if(!offhook)
		{
			PK_CID_Disable(hDsp);
			rtn = PK_TRUNK_OffHook(hTrk);
			time(&starttime);
			offhook = true;
			if(rtn != PK_TRUNK_E_NOT_ONHOOK)
				return;
		}
		PK_VP_EnableDTMFKeyDownEvent(hDsp);
	case PK_EVENT_TRUNK_OFFHOOK:
		playing = false;
		setDTMF();
	case PK_EVENT_TIMER_EXPIRED:
		endTimer();
	case PK_AUDIO_RETURN_BUFFER:
		while(NULL == (opt = getWord()))
		{
			opt = getOption(NULL);
			if(!opt)
				break;
			sayWord(opt);
		}
		if(!opt)
			break;
		
		word = vocab->getWord(opt);
		if(!word)
		{
			debug(2, "%s(%d): not in vocabulary", opt, id);
			setTimer(100);
			return;
		}			
		if(!playing)
		{
			format = PK_COMPOUND_MU_LAW;
			switch(vocab->getFormat())
			{
			case AU_ENCODING_ALAW:
				format = PK_COMPOUND_A_LAW;
				break;
			case AU_ENCODING_G721:
				format = PK_ADPCM_4_BIT;
				break;
			case AU_ENCODING_G723:
				format = PK_ADPCM_3_BIT;
			}
			sampling = PK_SAMPLING_RATE_8_KHz;
			switch(vocab->getSampling())
			{
			case AU_SAMPLING_4khz:
				sampling = PK_SAMPLING_RATE_4_KHz;
				break;
			case AU_SAMPLING_6khz:
				sampling = PK_SAMPLING_RATE_6_KHz;
			}
			PK_AUDIO_SetFormat(hDsp, format | sampling);				
			PK_AUDIO_OutputStart(hDsp);
		}
		playing = true;
		ttsbuf.lpData = (char *)word->start;
		ttsbuf.dwBufferLength = word->size;
		ttsbuf.dwBytesRecorded = ttsbuf.dwBufferLength;
		ttsbuf.dwLoops = 0;
		ttsbuf.dwFlags = PK_AUDIO_LAST_BUFFER;
		ttsbuf.lpNext = NULL;
		ttsbuf.reserved = 0;
		if(!memcmp(word->start, ".snd", 4))
		{
			au = (AUFILE *)word->start;
			offset = getaulong(au->hdrsize);
			ttsbuf.lpData += offset;
			ttsbuf.dwBufferLength -= offset;
			ttsbuf.dwBytesRecorded -= offset;

			sampling = PK_SAMPLING_RATE_8_KHz;
			format = PK_COMPOUND_MU_LAW;			
			
			switch(getaulong(au->encoding))
			{
			case AU_ENCODING_ALAW:
				format = PK_COMPOUND_A_LAW;
				break;
			case AU_ENCODING_G721:
				format = PK_ADPCM_4_BIT;
				break;
			case AU_ENCODING_G723:
				format = PK_ADPCM_3_BIT;
				break;
			}
			
			switch(getaulong(au->sampling))
			{
			case AU_SAMPLING_4khz:
				sampling = PK_SAMPLING_RATE_4_KHz;
				break;
			case AU_SAMPLING_6khz:
				sampling = PK_SAMPLING_RATE_6_KHz;
				break;
			}
			PK_AUDIO_SetFormat(hDsp, format | sampling);
		}
		PK_AUDIO_OutputAddBuffer(hDsp, &ttsbuf);		
		return;
	case PK_EVENT_DTMF_KEY_DOWN:
		endTimer();
		if(playing)
			PK_AUDIO_OutputPause(hDsp);
		return;
	case PK_EVENT_DTMF_KEY_UP:
		endTimer();
		Default(er);
		if(playing)
			PK_AUDIO_OutputResume(hDsp);
		return;	
	default:
		Default(er);
		return;
	}
	if(playing)
		PK_AUDIO_Reset(hDsp);
	playing = false;
	endTimer();
	PK_VP_DisableDTMFKeyDownEvent(hDsp);
	scrNext();
}