fixed bug with mpeg3 not playing audio in videos

1 files changed, 6 insertions, 2 deletions

diff --git a/core/multimedia/opieplayer/loopcontrol.cpp b/core/multimedia/opieplayer/loopcontrol.cpp
index 310d512..6f86b4a 100644
--- a/core/multimedia/opieplayer/loopcontrol.cpp
+++ b/core/multimedia/opieplayer/loopcontrol.cpp
@@ -1,477 +1,481 @@
 /**********************************************************************
 ** 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.
 **
 **********************************************************************/
 // L.J.Potter added changes Fri 02-15-2002
 
 #include <qpe/qpeapplication.h>
 
 #ifdef Q_WS_QWS
 #include <qpe/qcopenvelope_qws.h>
 #endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <pthread.h>
 #include <errno.h>
 #include <unistd.h>
 #include "loopcontrol.h"
 #include "videowidget.h"
 #include "audiodevice.h"
 #include <qpe/mediaplayerplugininterface.h>
 #include "mediaplayerstate.h"
 
 
 extern VideoWidget *videoUI; // now only needed to tell it to play a frame
 extern MediaPlayerState *mediaPlayerState;
 
 
 //#define DecodeLoopDebug(x)  qDebug x
 #define DecodeLoopDebug(x)
 
 
 static char     *audioBuffer = NULL;
 static AudioDevice  *audioDevice = NULL;
 static bool     disabledSuspendScreenSaver = FALSE;
 static bool     previousSuspendMode = FALSE;
 
 
 pthread_t audio_tid;
 pthread_attr_t  audio_attr;
 bool threadOkToGo = FALSE;
 
 
 class Mutex {
 public:
     Mutex() {
   pthread_mutexattr_t attr;
   pthread_mutexattr_init( &attr );
   pthread_mutex_init( &mutex, &attr );
   pthread_mutexattr_destroy( &attr );
     }
 
     ~Mutex() {
   pthread_mutex_destroy( &mutex );
     }
 
     void lock() {
   pthread_mutex_lock( &mutex );
     }
 
     void unlock() {
   pthread_mutex_unlock( &mutex );
     }
 private:
     pthread_mutex_t mutex;
 };
 
 
 void *startAudioThread( void *ptr ) {
     LoopControl *mpegView = (LoopControl *)ptr;
     while ( TRUE ) {
   if ( threadOkToGo && mpegView->moreAudio )
       mpegView->startAudio();
   else
       usleep( 10000 ); // Semi-buzy-wait till we are playing again
     }
     return 0;
 }
 
 
 Mutex *audioMutex;
 
 
 LoopControl::LoopControl( QObject *parent, const char *name )
     : QObject( parent, name ) {
     isMuted = FALSE;
     connect( qApp, SIGNAL( volumeChanged(bool) ), this, SLOT( setMute(bool) ) );
 //qDebug("starting loopcontrol");
     audioMutex = new Mutex;
 
     pthread_attr_init(&audio_attr);
 #define USE_REALTIME_AUDIO_THREAD
 #ifdef USE_REALTIME_AUDIO_THREAD
     // Attempt to set it to real-time round robin
     if ( pthread_attr_setschedpolicy( &audio_attr, SCHED_RR ) == 0 ) {
   sched_param params;
   params.sched_priority = 50;
   pthread_attr_setschedparam(&audio_attr,&params);
     } else {
   qDebug( "Error setting up a realtime thread, reverting to using a normal thread." );
   pthread_attr_destroy(&audio_attr);
   pthread_attr_init(&audio_attr);
     }
 #endif
 //qDebug("create audio thread");
     pthread_create(&audio_tid, &audio_attr, (void * (*)(void *))startAudioThread, this);
 }
 
 
 LoopControl::~LoopControl() {
     stop();
 }
 
 
 static long prev_frame = 0;
 static int currentSample = 0;
 
 
 void LoopControl::timerEvent( QTimerEvent *te ) {
 
     if ( te->timerId() == videoId )
   startVideo();
 
     if ( te->timerId() == sliderId ) {
   if ( hasAudioChannel && !hasVideoChannel && moreAudio ) {
       mediaPlayerState->updatePosition( audioSampleCounter );
   } else if ( hasVideoChannel && moreVideo ) {
       mediaPlayerState->updatePosition( current_frame );
   }
     }
 
     if ( !moreVideo && !moreAudio ) { 
         mediaPlayerState->setPlaying( FALSE );
         mediaPlayerState->setNext();
     }
 }
 
 
 void LoopControl::setPosition( long pos ) {
     audioMutex->lock();
 
     if ( hasVideoChannel && hasAudioChannel ) {
   playtime.restart();
   playtime = playtime.addMSecs( long((double)-pos * 1000.0 / framerate) );
   current_frame = pos + 1;
   mediaPlayerState->curDecoder()->videoSetFrame( current_frame, stream );
   prev_frame = current_frame - 1;
   currentSample = (int)( (double)current_frame * freq / framerate );
   mediaPlayerState->curDecoder()->audioSetSample( currentSample, stream );
   audioSampleCounter = currentSample - 1;
     } else if ( hasVideoChannel ) {
   playtime.restart();
   playtime = playtime.addMSecs( long((double)-pos * 1000.0 / framerate) );
   current_frame = pos + 1;
   mediaPlayerState->curDecoder()->videoSetFrame( current_frame, stream );
   prev_frame = current_frame - 1;
     } else if ( hasAudioChannel ) {
   playtime.restart();
   playtime = playtime.addMSecs( long((double)-pos * 1000.0 / freq) );
   currentSample = pos + 1;
   mediaPlayerState->curDecoder()->audioSetSample( currentSample, stream );
   audioSampleCounter = currentSample - 1;
     }
 
     audioMutex->unlock();
 }
 
 
 void LoopControl::startVideo() {
 
     if ( moreVideo ) {
 
         if ( mediaPlayerState->curDecoder() ) {
 
       if ( hasAudioChannel && !isMuted ) {
 
     current_frame = long( playtime.elapsed() * framerate / 1000 );
 
     if ( prev_frame != -1 && current_frame <= prev_frame )
         return;
 
       } else {
     // Don't skip
     current_frame++;
       }
 
       if ( prev_frame == -1 || current_frame > prev_frame ) {
     if ( current_frame > prev_frame + 1 ) {
         mediaPlayerState->curDecoder()->videoSetFrame( current_frame, stream );
     }
     moreVideo = videoUI->playVideo();
     prev_frame = current_frame;
       }
 
   } else {
 
       moreVideo = FALSE;
       killTimer( videoId );
 
   }
 
     }
 }
 
 
 void LoopControl::startAudio() {
     
 //qDebug("start audio");
     audioMutex->lock();
     if ( moreAudio ) {
 
   if ( !isMuted && mediaPlayerState->curDecoder() ) {
 
       currentSample = audioSampleCounter + 1;
 
       if ( currentSample != audioSampleCounter + 1 )
     qDebug("out of sync with decoder %i %i", currentSample, audioSampleCounter);
 
       long samplesRead = 0;
       bool readOk=mediaPlayerState->curDecoder()->audioReadSamples( (short*)audioBuffer, channels, 1024, samplesRead, stream );
       long sampleWeShouldBeAt = long( playtime.elapsed() ) * freq / 1000;
       long sampleWaitTime = currentSample - sampleWeShouldBeAt;
 
 // this causes drop outs not sure why its even here
 //          if ( ( sampleWaitTime > 2000 ) && ( sampleWaitTime < 20000 ) ) {
 //        usleep( (long)((double)sampleWaitTime * 1000000.0 / freq) );
 //          }
 //        else if ( sampleWaitTime <= -5000 ) {
 //       qDebug("need to catch up by: %li (%i,%li)", -sampleWaitTime, currentSample, sampleWeShouldBeAt );
 //       //mediaPlayerState->curDecoder()->audioSetSample( sampleWeShouldBeAt, stream );
 //       currentSample = sampleWeShouldBeAt;
 //         }
 
       audioDevice->write( audioBuffer, samplesRead * 2 * channels );
 
       if(  mediaPlayerState->isStreaming == FALSE)
       audioSampleCounter = currentSample + samplesRead - 1;
 
       moreAudio = readOk && (audioSampleCounter <= total_audio_samples);
 
   } else {
 
       moreAudio = FALSE;
 
   }
 
     }
 
     audioMutex->unlock();
 }
 
 
 void LoopControl::killTimers() {
 
     audioMutex->lock();
 
     if ( hasVideoChannel ) 
   killTimer( videoId );
     killTimer( sliderId );
     threadOkToGo = FALSE;
 
     audioMutex->unlock();
 }
 
 
 void LoopControl::startTimers() {
 
     audioMutex->lock();
 
     moreVideo = FALSE;
     moreAudio = FALSE;
 
     if ( hasVideoChannel ) {
   moreVideo = TRUE;
   int mSecsBetweenFrames = (int)(100 / framerate); // 10% of the real value
   videoId = startTimer( mSecsBetweenFrames );
     }
 
     if ( hasAudioChannel ) {
   moreAudio = TRUE;
   threadOkToGo = TRUE;
     }
 
     sliderId = startTimer( 300 ); // update slider every 1/3 second
 
     audioMutex->unlock();
 }
 
 
 void LoopControl::setPaused( bool pause ) {
 
     if ( !mediaPlayerState->curDecoder() || !mediaPlayerState->curDecoder()->isOpen() )
   return;
 
     if ( pause ) {
   killTimers();
     } else {
   // Force an update of the position
   mediaPlayerState->setPosition( mediaPlayerState->position() + 1 );
   mediaPlayerState->setPosition( mediaPlayerState->position() - 1 );
   // Just like we never stopped
   startTimers();
     }
 }
 
 
 void LoopControl::stop( bool willPlayAgainShortly ) {
 
 #if defined(Q_WS_QWS) && !defined(QT_NO_COP)
     if ( !willPlayAgainShortly && disabledSuspendScreenSaver ) {
   disabledSuspendScreenSaver = FALSE; 
   // Re-enable the suspend mode
   QCopEnvelope("QPE/System", "setScreenSaverMode(int)" ) << QPEApplication::Enable;
     }
 #endif
 
     if ( mediaPlayerState->curDecoder() && mediaPlayerState->curDecoder()->isOpen() ) {
 
   killTimers();
 
   audioMutex->lock();
 
   mediaPlayerState->curDecoder()->close();
 
   if ( audioDevice ) {
       delete audioDevice;
       delete audioBuffer;
       audioDevice = 0;
       audioBuffer = 0;
   }
 
   audioMutex->unlock();
 
     }
 }
 
 
 bool LoopControl::init( const QString& filename ) {
     stop();
 
     audioMutex->lock();
 
     fileName = filename;
     stream = 0; // only play stream 0 for now
     current_frame = total_video_frames = total_audio_samples = 0;
     
     qDebug( "Using the %s decoder", mediaPlayerState->curDecoder()->pluginName() );
    
     // ### Hack to use libmpeg3plugin to get the number of audio samples if we are using the libmad plugin
     if ( mediaPlayerState->curDecoder()->pluginName() == QString("LibMadPlugin") ) {
         if ( mediaPlayerState->libMpeg3Decoder() && mediaPlayerState->libMpeg3Decoder()->open( filename )) {
             total_audio_samples = mediaPlayerState->libMpeg3Decoder()->audioSamples( 0 );
             mediaPlayerState->libMpeg3Decoder()->close();
         }
     }
     
     if ( !mediaPlayerState->curDecoder()|| !mediaPlayerState->curDecoder()->open( filename ) ) {
   audioMutex->unlock();
   return FALSE;
     }
 
     hasAudioChannel = mediaPlayerState->curDecoder()->audioStreams() > 0;
     hasVideoChannel = mediaPlayerState->curDecoder()->videoStreams() > 0;
 
     if ( hasAudioChannel ) {
   int astream = 0;
 
-  channels = mediaPlayerState->curDecoder()->audioChannels( astream );
-  qDebug( "LC- channels = %d", channels );
+    if ( mediaPlayerState->curDecoder()->pluginName() == QString("LibMpeg3Plugin") )
+        channels = 2; //dont akx me why, but it needs this hack
+    else
+        channels = mediaPlayerState->curDecoder()->audioChannels( astream );
+
+    qDebug( "LC- channels = %d", channels );
   
   if ( !total_audio_samples )
       total_audio_samples = mediaPlayerState->curDecoder()->audioSamples( astream );
 
   total_audio_samples += 1000;
 
   mediaPlayerState->setLength( total_audio_samples );
   
   freq = mediaPlayerState->curDecoder()->audioFrequency( astream );
   qDebug( "LC- frequency = %d", freq );
 
   audioSampleCounter = 0;
    int bits_per_sample;
    if ( mediaPlayerState->curDecoder()->pluginName() == QString("LibWavPlugin") ) {
        bits_per_sample =(int) mediaPlayerState->curDecoder()->getTime();
        qDebug("using stupid hack");
    } else {
            bits_per_sample=0;
    }
 
   audioDevice = new AudioDevice( freq, channels, bits_per_sample);
   audioBuffer = new char[ audioDevice->bufferSize() ];
   channels = audioDevice->channels();
 
   //### must check which frequency is actually used.
   static const int size = 1;
   short int buf[size];
   long samplesRead = 0;
   mediaPlayerState->curDecoder()->audioReadSamples( buf, channels, size, samplesRead, stream );
     }
 
     if ( hasVideoChannel ) {
   total_video_frames = mediaPlayerState->curDecoder()->videoFrames( stream );
 
   mediaPlayerState->setLength( total_video_frames );
 
   framerate = mediaPlayerState->curDecoder()->videoFrameRate( stream );
   DecodeLoopDebug(( "Frame rate %g total %ld", framerate, total_video_frames ));
 
   if ( framerate <= 1.0 ) {
       DecodeLoopDebug(( "Crazy frame rate, resetting to sensible" ));
       framerate = 25;
   }
 
   if ( total_video_frames == 1 ) {
       DecodeLoopDebug(( "Cannot seek to frame" ));
   }
 
     }
 
     current_frame = 0;
     prev_frame = -1;
 
     connect( mediaPlayerState, SIGNAL( positionChanged( long ) ), this, SLOT( setPosition( long ) ) );
     connect( mediaPlayerState, SIGNAL( pausedToggled( bool ) ), this, SLOT( setPaused( bool ) ) );
 
     audioMutex->unlock();
 
     return TRUE;
 }
 
 
 void LoopControl::play() {
     qDebug("LC- play");
 #if defined(Q_WS_QWS) && !defined(QT_NO_COP)
     if ( !disabledSuspendScreenSaver || previousSuspendMode != hasVideoChannel ) {
   disabledSuspendScreenSaver = TRUE; 
   previousSuspendMode = hasVideoChannel;
         // Stop the screen from blanking and power saving state
   QCopEnvelope("QPE/System", "setScreenSaverMode(int)" ) 
       << ( hasVideoChannel ? QPEApplication::Disable : QPEApplication::DisableSuspend );
     }
 #endif
 
     playtime.start();
     startTimers();
 }
 
 
 void LoopControl::setMute( bool on ) {
     if ( on != isMuted ) {
   isMuted = on;
   if ( !on ) {
       // Force an update of the position
       mediaPlayerState->setPosition( mediaPlayerState->position() + 1 );
       mediaPlayerState->setPosition( mediaPlayerState->position() - 1 );
       // Resume playing audio
       moreAudio = TRUE;
   }
     }
 }