99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
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/******************************************************************************\
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* Copyright (c) 2004-2009
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#include "soundbase.h"
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/* Implementation *************************************************************/
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void CSoundBase::Init()
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{
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InitRecording();
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InitPlayback();
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}
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void CSoundBase::Start()
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{
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// start the audio thread
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start();
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}
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void CSoundBase::Stop()
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{
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// set flag so that thread can leave the main loop
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bRun = false;
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// give thread some time to terminate
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wait ( 5000 );
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}
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void CSoundBase::run()
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{
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// Set thread priority (The working thread should have a higher
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// priority than the GUI)
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#ifdef _WIN32
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SetThreadPriority ( GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL );
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#else
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/*
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// set the process to realtime privs, taken from
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// "http://www.gardena.net/benno/linux/audio" but does not seem to work,
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// maybe a problem with user rights
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struct sched_param schp;
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memset ( &schp, 0, sizeof ( schp ) );
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schp.sched_priority = sched_get_priority_max ( SCHED_FIFO );
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sched_setscheduler ( 0, SCHED_FIFO, &schp );
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*/
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#endif
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// main loop of working thread
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bRun = true;
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while ( bRun )
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{
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// TEST
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CVector<short> vecsAudioSndCrdStereo ( iStereoBufferSize );
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// get audio from sound card (blocking function)
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if ( Read ( vecsAudioSndCrdStereo ) )
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{
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PostWinMessage ( MS_SOUND_IN, MUL_COL_LED_RED );
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}
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else
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{
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PostWinMessage ( MS_SOUND_IN, MUL_COL_LED_GREEN );
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}
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// process audio data
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(*fpCallback) ( vecsAudioSndCrdStereo, pCallbackArg );
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// play the new block
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if ( Write ( vecsAudioSndCrdStereo ) )
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{
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PostWinMessage ( MS_SOUND_OUT, MUL_COL_LED_RED );
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}
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else
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{
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PostWinMessage ( MS_SOUND_OUT, MUL_COL_LED_GREEN );
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}
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}
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}
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