/// <summary>
/// Starts mixing the stream to the specified track.
/// An exception is thrown if the track already has a contributor.
/// </summary>
public void Start()
{
if (_track.SubscribeContributor(this) == false)
{
throw new GATException("Track " + _track.TrackNb + " already has a contributor.");
}
_stream.AddAudioThreadStreamClient(this);
}
private void UpdateObservedStream()
{
IGATAudioThreadStream stream = null;
if (observeTrack)
{
GATPlayer player = observedAudioStreamComp as GATPlayer;
if (player == null)
{
Debug.LogWarning("Could not find Player to observe track " + observedAudioStreamComp.name);
return;
}
GATTrack track = player.GetTrack(observedChannel);
stream = (( IGATAudioThreadStreamOwner )track).GetAudioThreadStream(0);
}
else if (observedAudioStreamComp != null)
{
stream = observedAudioStreamComp as IGATAudioThreadStream;
if (stream == null)
{
IGATAudioThreadStreamOwner streamOwner;
streamOwner = observedAudioStreamComp as IGATAudioThreadStreamOwner;
if (streamOwner != null)
{
stream = streamOwner.GetAudioThreadStream(0);
}
if (stream == null)
{
Debug.LogWarning("Could not find IGATAudioThreadStream or IGATAudioThreadStreamOwner on GameObject " + observedAudioStreamComp.name);
observedAudioStreamComp = _cachedStreamComp;
return;
}
}
}
if (_observedStream != null)
{
_observedStream.RemoveAudioThreadStreamClient(this);
}
if (stream != null)
{
stream.AddAudioThreadStreamClient(this);
}
else
{
_dataIsUpdated = false;
_needsData = true;
HandleNoMoreData();
}
_observedStream = stream;
_cachedStreamComp = observedAudioStreamComp;
}
/// <summary>
/// Start caching the stream.
/// </summary>
/// <param name="targetDspTime">The dsp time at which caching should start. Pass 0 to start as soon as possible.</param>
/// <param name="handler">Optional callback fired when the cache is full.</param>
public void Start(double targetDspTime = 0d, AtEndHandler handler = null)
{
if (_vDoCache || _waiting)
{
return;
}
_waiting = true;
_vPosition = 0;
_onEnd = handler;
_targetDspTime = targetDspTime;
_stream.AddAudioThreadStreamClient(this);
}
/// <summary>
/// The splitter will begin broadcasting it's
/// sub streams immediately.
/// </summary>
public GATAudioThreadStreamSplitter(IGATAudioThreadStream stream, GATDataAllocationMode bufferAllocationMode)
{
int i;
_sourceStreamChannels = stream.NbOfChannels;
if (_sourceStreamChannels < 2)
{
Debug.LogWarning("source stream is mono: " + stream.StreamName);
}
IntPtr outputBufferPointer = IntPtr.Zero;
_sharedBufferSize = stream.BufferSizePerChannel;
if (bufferAllocationMode == GATDataAllocationMode.Unmanaged)
{
_sharedBufferArray = new float[_sharedBufferSize];
_sharedBuffer = new GATData(_sharedBufferArray);
}
else
{
if (bufferAllocationMode == GATDataAllocationMode.Fixed)
{
_sharedBuffer = GATManager.GetFixedDataContainer(_sharedBufferSize, "StreamSplitter buffer");
}
else
{
_sharedBuffer = GATManager.GetDataContainer(_sharedBufferSize);
}
_sharedBufferArray = _sharedBuffer.ParentArray;
outputBufferPointer = _sharedBuffer.GetPointer();
}
_memOffset = _sharedBuffer.MemOffset;
_streamProxies = new GATAudioThreadStreamProxy[_sourceStreamChannels];
for (i = 0; i < _sourceStreamChannels; i++)
{
_streamProxies[i] = new GATAudioThreadStreamProxy(_sharedBufferSize, 1, outputBufferPointer, _sharedBuffer.MemOffset, (stream.StreamName + " split " + i));
}
stream.AddAudioThreadStreamClient(this);
_sourceStream = stream;
}
void OnEnable() // We subscribe to the player's stream in OnEnable, and unsubscribe in OnDisable
{
// audio thread stream access is protected behind an explicit implementation of IGATAudioThreadStreamOwner.GetAudioThreadStream()
// Handling of streams is delicate: the callback they provide is on the audio thread and needs special care.
// We first cast the default player to IGATAudioThreadStreamOwner in order to get access to audio stream getter methods.
IGATAudioThreadStreamOwner streamOwner = ( IGATAudioThreadStreamOwner )GATManager.DefaultPlayer;
_observedStream = streamOwner.GetAudioThreadStream(0);
// The point of this tutorial is to demonstrate stereo capture!
if (_observedStream.NbOfChannels != 2)
{
Debug.LogError("This tutorial only works with stereo ouptut!");
Destroy(this);
return;
}
_observedStream.AddAudioThreadStreamClient(this); //Subscribe to the stream: we will now receive the HandleAudioThreadStream callback.
}
void SetupTracksInfo()
{
GATTrack track;
int nbOfTracks;
nbOfTracks = _player.NbOfTracks;
_trackStreams = new IGATAudioThreadStream[nbOfTracks];
_trackLevels = new float[nbOfTracks];
_trackFiltersInfo = new TrackFiltersInfo[nbOfTracks];
for (int i = 0; i < nbOfTracks; i++)
{
track = _player.GetTrack(i);
_trackStreams[i] = track.GetAudioThreadStream(0);
if (_trackStreams[i] != null)
{
_trackStreams[i].AddAudioThreadStreamClient(this);
}
if (track != null)
{
_trackFiltersInfo[i] = new TrackFiltersInfo(track.FiltersHandler);
}
}
_playerStream = (( IGATAudioThreadStreamOwner )_player).GetAudioThreadStream(0);
_playerChannelsLevels = new float[GATInfo.NbOfChannels];
_playerFiltersInfo = new TrackFiltersInfo(_player.FiltersHandler);
if (_playerStream != null)
{
_playerStream.AddAudioThreadStreamClient(this);
}
}
void SetupTracksInfo()
{
GATTrack track;
int nbOfTracks;
nbOfTracks = _player.NbOfTracks;
_trackStreams = new IGATAudioThreadStream[ nbOfTracks ];
_trackLevels = new float[ nbOfTracks ];
_trackFiltersInfo = new TrackFiltersInfo[ nbOfTracks ];
for( int i = 0; i < nbOfTracks; i++ )
{
track = _player.GetTrack( i );
_trackStreams[ i ] = track.GetAudioThreadStream( 0 );
if( _trackStreams[ i ] != null )
{
_trackStreams[ i ].AddAudioThreadStreamClient( this );
}
if( track != null )
{
_trackFiltersInfo[ i ] = new TrackFiltersInfo( track.FiltersHandler );
}
}
_playerStream = ( ( IGATAudioThreadStreamOwner )_player ).GetAudioThreadStream( 0 );
_playerChannelsLevels = new float[ GATInfo.NbOfChannels ];
_playerFiltersInfo = new TrackFiltersInfo( _player.FiltersHandler );
if( _playerStream != null )
{
_playerStream.AddAudioThreadStreamClient( this );
}
}
/// <summary>
/// The splitter will begin broadcasting it's
/// sub streams immediately.
/// </summary>
public GATAudioThreadStreamSplitter( IGATAudioThreadStream stream, GATDataAllocationMode bufferAllocationMode )
{
int i;
_sourceStreamChannels = stream.NbOfChannels;
if( _sourceStreamChannels < 2 )
{
Debug.LogWarning( "source stream is mono: " + stream.StreamName );
}
IntPtr outputBufferPointer = IntPtr.Zero;
_sharedBufferSize = stream.BufferSizePerChannel;
if( bufferAllocationMode == GATDataAllocationMode.Unmanaged )
{
_sharedBufferArray = new float[ _sharedBufferSize ];
_sharedBuffer = new GATData( _sharedBufferArray );
}
else
{
if( bufferAllocationMode == GATDataAllocationMode.Fixed )
{
_sharedBuffer = GATManager.GetFixedDataContainer( _sharedBufferSize, "StreamSplitter buffer" );
}
else
{
_sharedBuffer = GATManager.GetDataContainer( _sharedBufferSize );
}
_sharedBufferArray = _sharedBuffer.ParentArray;
outputBufferPointer = _sharedBuffer.GetPointer();
}
_memOffset = _sharedBuffer.MemOffset;
_streamProxies = new GATAudioThreadStreamProxy[ _sourceStreamChannels ];
for( i = 0; i < _sourceStreamChannels; i++ )
{
_streamProxies[ i ] = new GATAudioThreadStreamProxy( _sharedBufferSize, 1, outputBufferPointer, _sharedBuffer.MemOffset, ( stream.StreamName + " split " + i ) );
}
stream.AddAudioThreadStreamClient( this );
_sourceStream = stream;
}
