| -rw-r--r-- | library/sound.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/library/sound.cpp b/library/sound.cpp index d1e2388..42f7698 100644 --- a/library/sound.cpp +++ b/library/sound.cpp @@ -60,194 +60,195 @@ static int WAVsoundDuration(const QString& filename) } 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 { 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 */ - +#ifndef QT_NO_SOUND #include "sound.moc" +#endif |