| -rw-r--r-- | library/sound.cpp | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/library/sound.cpp b/library/sound.cpp index ee2aabc..d1e2388 100644 --- a/library/sound.cpp +++ b/library/sound.cpp @@ -1,222 +1,253 @@ /********************************************************************** ** Copyright (C) 2000 Trolltech AS. All rights reserved. ** ** This file is part of Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include <qpe/resource.h> #include <qpe/sound.h> #include <qpe/qcopenvelope_qws.h> #include <qsound.h> #include <qfile.h> #include <unistd.h> #include <fcntl.h> #include <sys/ioctl.h> #ifndef QT_NO_SOUND #include <sys/soundcard.h> #endif #ifndef QT_NO_SOUND static int WAVsoundDuration(const QString& filename) { // bad solution // most of this is copied from qsoundqss.cpp QFile input(filename); if ( !input.open(IO_ReadOnly) ) return 0; struct QRiffChunk { char id[4]; Q_UINT32 size; char data[4/*size*/]; } chunk; struct { Q_INT16 formatTag; Q_INT16 channels; Q_INT32 samplesPerSec; Q_INT32 avgBytesPerSec; Q_INT16 blockAlign; Q_INT16 wBitsPerSample; } chunkdata; int total = 0; while(1) { // Keep reading chunks... const int n = sizeof(chunk)-sizeof(chunk.data); if ( input.readBlock((char*)&chunk,n) != n ) break; if ( qstrncmp(chunk.id,"data",4) == 0 ) { total += chunkdata.avgBytesPerSec ? chunk.size * 1000 / chunkdata.avgBytesPerSec : 0; //qDebug("%d bytes of PCM (%dms)", chunk.size,chunkdata.avgBytesPerSec ? chunk.size * 1000 / chunkdata.avgBytesPerSec : 0); input.at(input.at()+chunk.size-4); } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { char d[4]; if ( input.readBlock(d,4) != 4 ) return 0; if ( qstrncmp(d,"WAVE",4) != 0 ) { // skip //qDebug("skip %.4s RIFF chunk",d); if ( chunk.size < 10000000 ) (void)input.at(input.at()+chunk.size-4); } } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { if ( input.readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) return 0; #define WAVE_FORMAT_PCM 1 if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { //qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); return 0; } } else { //qDebug("skip %.4s chunk",chunk.id); // ignored chunk if ( chunk.size < 10000000 ) (void)input.at(input.at()+chunk.size); } } //qDebug("%dms",total); return total; } class SoundData : public QSound { + Q_OBJECT +signals: + void stopped(); public: SoundData ( const QString& name ) : QSound ( Resource::findSound ( name )), filename ( Resource::findSound ( name )) { loopsleft=0; ms = WAVsoundDuration(filename); } void playLoop ( int loopcnt = -1 ) { // needs server support loopsleft = loopcnt; if ( ms ) startTimer ( ms > 50 ? ms-50 : 0 ); // 50 for latency play ( ); } void timerEvent ( QTimerEvent *e ) { if ( loopsleft >= 0 ) { if ( --loopsleft <= 0 ) { killTimer ( e-> timerId ( )); loopsleft = 0; return; } } play(); } - bool isFinished ( ) const + bool isFinished ( ) const { - return ( loopsleft == 0 ); + return ( loopsleft == 0 ); } + /* + * non virtual reimplementation + * @internal + */ + void killTimers() { + QObject::killTimers(); + emit stopped(); + } + private: QString filename; int loopsleft; int ms; }; #endif + +/* + * @internal + * Using sender() when the slot is called is unsafe! + * + * @param snd instance + * @param obj The QObject to be called + * @param slot connect SIGNAL(stopped()) to slot + */ +void register_qpe_sound_finished( Sound* snd, QObject* obj, const char* slot ) { +#ifndef QT_NO_SOUND + QObject::connect(snd->d, SIGNAL(stopped()), obj, slot ); +#endif +} + /*! Opens a wave sound file \a name for playing * Resource is used for finding the file **/ Sound::Sound(const QString& name) { #ifndef QT_NO_SOUND d = new SoundData(name); #endif } /*! Destroys the sound */ Sound::~Sound() { #ifndef QT_NO_SOUND delete d; #endif } /*! Play the sound once */ void Sound::play() { #ifndef QT_NO_SOUND + d->killTimers(); d->playLoop(1); #endif } /*! Play the sound, repeatedly until stop() is called */ void Sound::playLoop() { #ifndef QT_NO_SOUND d->killTimers(); d->playLoop(); #endif } /*! Do not repeat the sound after it finishes. This will end a playLoop() */ void Sound::stop() { #ifndef QT_NO_SOUND d->killTimers(); #endif } bool Sound::isFinished() const { #ifndef QT_NO_SOUND return d->isFinished(); #else return true; #endif } /*! Sounds the audible system alarm. This is used for applications such as Calendar when it needs to alarm the user of an event. */ void Sound::soundAlarm() { #ifndef QT_NO_COP QCopEnvelope( "QPE/TaskBar", "soundAlarm()" ); #endif } /*! \class Sound \brief The Sound class plays WAVE sound files and can invoke the audible alarm. The Sound class is constructed with the .wav music file name. The Sound class retrieves the sound file from the shared Resource class. This class ties together QSound and the available sound resources. To sound an audible system alarm, call the static method soundAlarm() \ingroup qtopiaemb */ + + +#include "sound.moc" |