MediaPlayer error() not marked as Qt signal?

Similar Questions

• Error() MediaPlayer does not?

  Hey gang,

  I am trying to connect the error() signal in the MediaPlayer to a location private in a custom class.  The code is:

  connect(&m_player, SIGNAL(error(bb::multimedia::MediaError::Type, unsigned int)), this, SLOT(onPlaybackError(bb::multimedia::MediaError::Type, unsigned int)));
  

  and the slot is:

  void Job::onPlaybackError(bb::multimedia::MediaError::Type mediaError, unsigned int position) {
      qDebug() << "Job::onPlaybackError(), mediaError: " << mediaError << ", and position: " << position;
      emit finished(m_taskName, 256);
  }
  

  I can see in the console there is an error if there is no such thing as the mp3 that I'm playing, but my slot onPlaybackError() is never called.  the application compiles and works very well, but the slot never fires.

  I have an another slot defined that I connect to the playbackCompleted() signal in the MediaPlayer, and it works perfectly... Really there is not much difference between the two that I see.  both are defined as private in the header file locations.  that is to say:

  private slots:
      void onPlaybackCompleted();
      void onPlaybackError(bb::multimedia::MediaError::Type, unsigned int);
  

  no idea why we could work and the other is not?

  Thank you!

  J

  Yes, that would be my next suggestion. 'File not found' is not really an error in media, more like a system I/O problem, so maybe as you say that's not pulled the signal of error on MediaPlayer. I expected MediaError.SourceUnavailable to be triggered, but the docs do not provide a lot of details on this one. Maybe you need to use QFile to confirm the existence of the MP3 before submitting it again to MediaPlayer.

  oddboy wrote:

  Hello

  I tried Q_ASSERT (result) on the connect line that bothers me, and the app does not end.

  I also print the qDebug() 'Result' variable.  Here is what says the console:

  ############# Q_ASSERT(result) is  true
  

  And yet, the signal never fires.  I'm starting to wonder if error() signal is not pulled for the problem that I'm trying to catch - which is actually an mp3 player that does not exist.

  My test is simple:

  create a MediaPlayer

  Set the source to a mp3 player that exists

  Play() sound

  result = everything is ok

  Rename the mp3 and try to play the sound

  result = sound is not played, but MediaPlayer::error() does not.

  My onPlaybackError () handler is quite simple...

  void Job::onPlaybackError(bb::multimedia::MediaError::Type mediaError, unsigned int position) {
      qDebug() << "Job::onPlaybackError(), mediaError: " << mediaError << ", and position: " << position;
  }
  

  Here's the MediaPlayer debugging too...

  .. puzzled even...

  START 19 MediaPlayer::setSourceUrl
  MediaPlayer::setSourceUrl: url=QUrl("/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3")
  START 19 MediaPlayerPrivate::detachInput
  START 19 MediaPlayerPrivate::setMediaState
  MediaPlayerPrivate::setMediaState: Attempting to change to same state.  mediaState=Unprepared
  => END 19 ( 4 ms):
  => END 19 ( 9 ms):
  START 19 MediaPlayerPrivate::setMediaState
  MediaPlayerPrivate::setMediaState: Attempting to change to same state.  mediaState=Unprepared
  => END 19 ( 4 ms):
  MediaPlayer::setSourceUrl: emit sourceChanged()
  MediaPlayer::setSourceUrl:   url=QUrl("/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3")
  => END 19 ( 26 ms):
  START 19 MediaPlayer::prepare
  START 19 MediaPlayerPrivate::generateAudioOutputUrl
  MediaPlayerPrivate::generateAudioOutputUrl: audioOutput=Default
  => END 19 ( 4 ms):
  START 19 MediaPlayerPrivate::generateVideoOutputUrl
  MediaPlayerPrivate::generateVideoOutputUrl: videoOutput=None
  MediaPlayerPrivate::generateVideoOutputUrl: windowId=""
  MediaPlayerPrivate::generateVideoOutputUrl: windowGroupId=""
  => END 19 ( 12 ms):
  START 1 MmrContextNotifier::onReadyRead
  START 19 MediaPlayerPrivate::updateAudioOutputParams
  MmrContextNotifier::onReadyRead: QMap(("@output0", PpsAttribute(Object, QFlags(0x4) ,  QMap() ) ) )
  => END 19 ( 3 ms):
  => END 1 ( 5 ms):
  START 19 MediaPlayerPrivate::attachInput
  START 1 MmrContextNotifier::onReadyRead
  MediaPlayerPrivate::attachInput: url=QUrl("/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3")
  MmrContextNotifier::onReadyRead: QMap(("@output0", PpsAttribute(Object, QFlags() ,  QMap(("type", PpsAttribute(String, QFlags() ,  "audio" ) ) ( "url" ,  PpsAttribute( String,  QFlags() ,  "audio:default" ) ) ( "volume" ,  PpsAttribute( String,  QFlags() ,  "100" ) ) )  ) ) )
  MediaPlayerPrivate::attachInput: Attempting to attach input. url="file:///accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", type="playlist"
  => END 1 ( 4 ms):
  START 19 MediaPlayerPrivate::lastError
  => END 19 ( 2 ms):
  MediaPlayerPrivate::attachInput: Attempting to attach input. url="/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", type="autolist"
  START 1 MmrContextNotifier::onReadyRead
  MmrContextNotifier::onReadyRead: QMap(("@play-queue", PpsAttribute(Object, QFlags(0x4) ,  QMap() ) ) )
  START 1 MmrContextNotifier::onPpsPlayQueueChanged
  => END 1 ( 1 ms):
  => END 1 ( 10 ms):
  START 1 MmrContextNotifier::onReadyRead
  MmrContextNotifier::onReadyRead: QMap(("@play-queue", PpsAttribute(Object, QFlags(0x2) ,  QMap() ) ) )
  START 1 MmrContextNotifier::onPpsPlayQueueChanged
  => END 1 ( 1 ms):
  => END 1 ( 5 ms):
  START 19 MediaPlayerPrivate::lastError
  => END 19 ( 2 ms):
  MediaPlayerPrivate::attachInput: Unable to attach source input. url="/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", e=SourceUnavailable
  => END 19 ( 43 ms):
  MediaPlayer::prepare: Error attaching input source, error=SourceUnavailable
  => END 19 ( 82 ms):
  START 19 MediaPlayer::play
  START 19 MediaPlayer::prepare
  START 19 MediaPlayerPrivate::generateAudioOutputUrl
  MediaPlayerPrivate::generateAudioOutputUrl: audioOutput=Default
  => END 19 ( 2 ms):
  START 19 MediaPlayerPrivate::generateVideoOutputUrl
  MediaPlayerPrivate::generateVideoOutputUrl: videoOutput=None
  MediaPlayerPrivate::generateVideoOutputUrl: windowId=""
  MediaPlayerPrivate::generateVideoOutputUrl: windowGroupId=""
  => END 19 ( 6 ms):
  START 19 MediaPlayerPrivate::updateAudioOutputParams
  => END 19 ( 2 ms):
  START 19 MediaPlayerPrivate::attachInput
  MediaPlayerPrivate::attachInput: url=QUrl("/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3")
  MediaPlayerPrivate::attachInput: Attempting to attach input. url="file:///accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", type="playlist"
  START 19 MediaPlayerPrivate::lastError
  => END 19 ( 1 ms):
  MediaPlayerPrivate::attachInput: Attempting to attach input. url="/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", type="autolist"
  START 1 MmrContextNotifier::onReadyRead
  MmrContextNotifier::onReadyRead: QMap(("@play-queue", PpsAttribute(Object, QFlags(0x4) ,  QMap() ) ) )
  START 1 MmrContextNotifier::onPpsPlayQueueChanged
  => END 1 ( 2 ms):
  => END 1 ( 6 ms):
  START 1 MmrContextNotifier::onReadyRead
  MmrContextNotifier::onReadyRead: QMap(("@play-queue", PpsAttribute(Object, QFlags(0x2) ,  QMap() ) ) )
  START 1 MmrContextNotifier::onPpsPlayQueueChanged
  => END 1 ( 1 ms):
  => END 1 ( 5 ms):
  START 19 MediaPlayerPrivate::lastError
  => END 19 ( 2 ms):
  MediaPlayerPrivate::attachInput: Unable to attach source input. url="/accounts/1000/appdata/com.oddelement.bron.testDev_lement_brondbbdfa23/shared/misc/sound.mp3", e=SourceUnavailable
  => END 19 ( 39 ms):
  MediaPlayer::prepare: Error attaching input source, error=SourceUnavailable
  => END 19 ( 58 ms):
  MediaPlayer::play: Unable to prepare the player. error=SourceUnavailable
  => END 19 ( 62 ms):
  

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