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public static GetFixedDataContainer ( int length, string description ) : |
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| length | int | |
| description | string | |
| return | ||
/// <summary>
/// Extracts the audio data from an AudioClip and sets it in a GATData object.
/// Memory is allocated according to the specified GATDataAllocationMode.
/// </summary>
public static GATData ToGATData(this AudioClip clip, GATDataAllocationMode mode)
{
GATData data;
float[] tempArray;
tempArray = new float[clip.samples];
clip.GetData(tempArray, 0);
#if UNITY_EDITOR
if (Application.isPlaying == false)
{
mode = GATDataAllocationMode.Unmanaged;
}
#endif
if (mode == GATDataAllocationMode.Managed)
{
data = GATManager.GetDataContainer(clip.samples);
data.CopyFrom(tempArray, 0, 0, clip.samples);
}
else if (mode == GATDataAllocationMode.Fixed)
{
data = GATManager.GetFixedDataContainer(clip.samples, "ClipData: " + clip.name);
data.CopyFrom(tempArray, 0, 0, clip.samples);
}
else
{
data = new GATData(tempArray);
}
return(data);
}
/// <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;
}
protected virtual void OnEnable()
{
if (GATInfo.NbOfChannels == 0)
{
return;
}
if (_player != null) //Object has just been deserialized, only setup transient objects
{
_panInfo = new GATDynamicPanInfo(_player, true);
_panInfo.SetGains(_gains);
_trackBuffer = GATManager.GetFixedDataContainer(GATInfo.AudioBufferSizePerChannel, "track" + TrackNb + " buffer");
_audioThreadStreamProxy = new GATAudioThreadStreamProxy(GATInfo.AudioBufferSizePerChannel, 1, _trackBuffer.GetPointer(), _trackBuffer.MemOffset, ("Track " + _trackNb + " stream"));
_player.onPlayerWillMix += PlayerWillBeginMixing;
_mute = _nextMute; //only _nextMute is serialized
_active = true;
}
}
/// <summary>
/// Performs the same operation as ToGATData, but splits interleaved channels in seperate GATData
/// instances.
/// </summary>
public static GATData[] ExtractChannels(this AudioClip clip, GATDataAllocationMode mode)
{
GATData[] channelsData;
float[] tempArray;
int i;
int length;
tempArray = new float[clip.samples * clip.channels];
clip.GetData(tempArray, 0);
channelsData = new GATData[clip.channels];
length = clip.samples;
#if UNITY_EDITOR
if (Application.isPlaying == false)
{
mode = GATDataAllocationMode.Unmanaged;
}
#endif
for (i = 0; i < clip.channels; i++)
{
if (mode == GATDataAllocationMode.Managed)
{
channelsData[i] = GATManager.GetDataContainer(length);
}
else if (mode == GATDataAllocationMode.Fixed)
{
channelsData[i] = GATManager.GetFixedDataContainer(length, clip.name + " channel" + i + " data");
}
else
{
channelsData[i] = new GATData(new float[length]);
}
channelsData[i].CopyFromInterlaced(tempArray, length, i, clip.channels);
}
return(channelsData);
}
/// <summary>
/// Blocking load of wav and ogg files.
/// </summary>
public GATData[] LoadSync(AGATAudioFile file, GATDataAllocationMode allocationMode)
{
GATData[] loadedChannels;
int i;
bool didFail = false;
loadedChannels = new GATData[file.Channels];
for (i = 0; i < file.Channels; i++)
{
if (allocationMode == GATDataAllocationMode.Fixed) //GZComment: allocation fail leaks
{
try{ loadedChannels[i] = GATManager.GetFixedDataContainer(file.NumFrames, file.FileName); }
catch (System.Exception ex)
{
didFail = true;
#if UNITY_EDITOR
Debug.LogException(ex);
#endif
}
}
else if (allocationMode == GATDataAllocationMode.Managed) //GZComment: allocation fail leaks
{
try
{
loadedChannels[i] = GATManager.GetDataContainer(file.NumFrames);
}
catch (System.Exception ex)
{
didFail = true;
#if UNITY_EDITOR
Debug.LogException(ex);
#endif
}
}
else
{
loadedChannels[i] = new GATData(new float[file.NumFrames]);
}
}
if (didFail)
{
for (i = 0; i < loadedChannels.Length; i++)
{
if (loadedChannels[i] != null)
{
loadedChannels[i].Release();
}
}
return(null);
}
if (file.Channels == 1)
{
file.ReadNextChunk(loadedChannels[0].ParentArray, loadedChannels[0].MemOffset, file.NumFrames);
return(loadedChannels);
}
int framesPerRead;
int framesRead;
int totalFramesRead = 0;
framesPerRead = _buffer.Length / file.Channels;
while (true)
{
framesRead = file.ReadNextChunk(_buffer, 0, framesPerRead);
for (i = 0; i < file.Channels; i++)
{
loadedChannels[i].CopyFromInterlaced(_buffer, framesRead, totalFramesRead, i, file.Channels);
}
totalFramesRead += framesRead;
if (framesRead < framesPerRead)
{
break;
}
}
return(loadedChannels);
}
public static void InitStatics()
{
BufferedSample.SharedProcessingBuffer = GATManager.GetFixedDataContainer(GATInfo.AudioBufferSizePerChannel * 2, "Player Processing Buffer");
}
public GATData[] LoadNext(BackgroundWorker worker, float[] deInterleaveBuffer)
{
GATData[] containers;
int i;
int channels;
if (_paths.Count == 0)
{
Status = LoadOperationStatus.Done;
return(null);
}
AGATAudioFile file;
try
{
file = AGATAudioFile.OpenAudioFileAtPath(_paths.Dequeue());
}
catch (System.Exception e)
{
#if UNITY_EDITOR
Debug.LogException(e);
#endif
FailReason = LoadOperationFailReason.CannotOpenFile;
Status = LoadOperationStatus.Failed;
return(null);
}
using ( file )
{
channels = file.Channels;
CurrentFileName = file.FileName;
if (!_forceMono && channels > 1)
{
containers = new GATData[channels];
}
else
{
containers = new GATData[1];
}
for (i = 0; i < containers.Length; i++)
{
if (_allocationMode == GATDataAllocationMode.Fixed) //GZComment: allocation fail leaks
{
try{ containers[i] = GATManager.GetFixedDataContainer(file.NumFrames, file.FileName); }
catch (System.Exception ex)
{
ReleaseContainers(containers);
Status = LoadOperationStatus.Failed;
FailReason = LoadOperationFailReason.OutOfPreAllocatedMemory;
#if UNITY_EDITOR
Debug.LogException(ex);
#endif
return(null);
}
}
else if (_allocationMode == GATDataAllocationMode.Managed) //GZComment: allocation fail leaks
{
try
{
containers[i] = GATManager.GetDataContainer(file.NumFrames);
}
catch (System.Exception ex)
{
ReleaseContainers(containers);
Status = LoadOperationStatus.Failed;
FailReason = LoadOperationFailReason.NoLargeEnoughChunkInAllocator;
#if UNITY_EDITOR
Debug.LogException(ex);
#endif
return(null);
}
}
else
{
containers[i] = new GATData(new float[file.NumFrames]);
}
}
int framesPerRead;
int framesRead;
int totalFramesRead = 0;
if (channels > 1)
{
framesPerRead = deInterleaveBuffer.Length / channels;
while (true)
{
if (worker.CancellationPending)
{
ReleaseContainers(containers);
return(null);
}
framesRead = file.ReadNextChunk(deInterleaveBuffer, 0, framesPerRead);
if (_forceMono) // Only supported for stereo files
{
int numSamples = framesRead * channels;
for (i = 0; i < numSamples; i += channels)
{
deInterleaveBuffer[i] += deInterleaveBuffer[i + 1];
}
containers[0].CopyFromInterlaced(deInterleaveBuffer, framesRead, totalFramesRead, 0, channels);
}
else
{
for (i = 0; i < channels; i++)
{
containers[i].CopyFromInterlaced(deInterleaveBuffer, framesRead, totalFramesRead, i, channels);
}
}
totalFramesRead += framesRead;
if (_reportsProgress)
{
worker.ReportProgress(0, new ProgressInfo(( float )totalFramesRead / file.NumFrames, file.FileName));
}
if (framesRead < framesPerRead)
{
break;
}
}
}
else
{
int framesLeft;
while (totalFramesRead < file.NumFrames)
{
if (worker.CancellationPending)
{
ReleaseContainers(containers);
return(null);
}
framesLeft = file.NumFrames - totalFramesRead;
framesPerRead = (framesLeft < 16384 ? framesLeft : 16384);
framesRead = file.ReadNextChunk(containers[0].ParentArray, containers[0].MemOffset + totalFramesRead, framesPerRead);
totalFramesRead += framesRead;
if (_reportsProgress)
{
worker.ReportProgress(0, new ProgressInfo(( float )totalFramesRead / file.NumFrames, file.FileName));
}
}
}
}
return(containers);
}
