/// <summary>
/// If CanFillis true with this method you can fill the next free buffer
/// </summary>
/// <param name="pcm">The array containing PCM data</param>
/// <param name="bufferSize">The full size in bytes of PCM data</param>
/// <param name="type">If this buffer is the last buffer of the stream set to true, if not false</param>
protected unsafe void FillBuffer(byte[] pcm, int bufferSize, AudioLayer.BufferType type)
{
fixed(void *pcmBuffer = pcm)
{
FillBuffer(new IntPtr(pcmBuffer), bufferSize, type);
}
}
/// <summary>
/// If CanFillis true with this method you can fill the next free buffer
/// </summary>
/// <param name="pcm">The pointer to PCM data</param>
/// <param name="bufferSize">The full size in bytes of PCM data</param>
/// <param name="type">If this buffer is the last buffer of the stream set to true, if not false</param>
protected void FillBuffer(IntPtr pcm, int bufferSize, AudioLayer.BufferType type)
{
var buffer = freeBuffers.Dequeue();
AudioLayer.SourceQueueBuffer(SoundInstance.Source, buffer, pcm, bufferSize, type);
if (readyToPlay)
{
return;
}
prebufferedCount++;
if (prebufferedCount < prebufferedTarget)
{
return;
}
readyToPlay = true;
ReadyToPlay.TrySetResult(true);
}
/// <summary>
/// If CanFillis true with this method you can fill the next free buffer
/// </summary>
/// <param name="pcm">The array containing PCM data</param>
/// <param name="bufferSize">The full size in bytes of PCM data</param>
/// <param name="type">If this buffer is the last buffer of the stream set to true, if not false</param>
protected unsafe void FillBuffer(short[] pcm, int bufferSize, AudioLayer.BufferType type)
{
var buffer = freeBuffers.Dequeue();
fixed(short *pcmBuffer = pcm)
AudioLayer.SourceQueueBuffer(SoundInstance.Source, buffer, new IntPtr(pcmBuffer), bufferSize, type);
if (readyToPlay)
{
return;
}
prebufferedCount++;
if (prebufferedCount < prebufferedTarget)
{
return;
}
readyToPlay = true;
ReadyToPlay.TrySetResult(true);
}
private unsafe void SendExtractedAudioDataToAudioBuffer(AudioLayer.BufferType bufferType)
{
{
//Update the average number of bytes per buffer
sentBuffersCount++;
accumulatedSentBytesCount += storageBuffer.CountDataBytes;
var countAverageBytesPerBuffer = (accumulatedSentBytesCount / sentBuffersCount);
if (sentBuffersCount >= 10000)
{
//To prevent overflow
sentBuffersCount = 10;
accumulatedSentBytesCount = countAverageBytesPerBuffer * sentBuffersCount;
}
//new buffer's estimated time
var bufferDuration = TimeSpan.FromSeconds(storageBuffer.CountDataBytes / byteRatePerSecond);
//compute an estimate of the time left before this new buffer can be played
var playTimeLeft = TimeSpan.FromSeconds((NumberOfBuffers - freeBuffers.Count) * countAverageBytesPerBuffer / byteRatePerSecond);
//Normally: if the buffer are continuous: bufferStartingTimeUs should be very close from the previous MediaPresentationTimeUsMax value
//This could help us debug in the case of the audio timeFrame is incorrect
var currentTime = MediaCurrentTime;
var mediaCurrentTimeMin = storageBuffer.PresentationTime - playTimeLeft;
mediaCurrentTimeMax = storageBuffer.PresentationTime + bufferDuration;
//A buffer was being played, so we expect the currentTime to be between [min, bufferStartingTime]
if (currentTime > mediaCurrentTimeMin && mediaCurrentTimeMin < storageBuffer.PresentationTime)
{
mediaCurrentTimeMin = MediaCurrentTime;
}
MediaCurrentTime = mediaCurrentTimeMin;
}
FillBuffer(storageBuffer.Data, storageBuffer.CountDataBytes, bufferType);
}
/// <summary>
/// If CanFillis true with this method you can fill the next free buffer
/// </summary>
/// <param name="pcm">The pointer to PCM data</param>
/// <param name="bufferSize">The full size in bytes of PCM data</param>
/// <param name="type">If this buffer is the last buffer of the stream set to true, if not false</param>
protected void FillBuffer(IntPtr pcm, int bufferSize, AudioLayer.BufferType type)
{
if (bufferSize > nativeBufferSizeBytes)
{
Logger.Error("Provided buffer size is bigger than native buffer. Data will be cut.");
bufferSize = nativeBufferSizeBytes;
}
var buffer = freeBuffers.Dequeue();
AudioLayer.SourceQueueBuffer(SoundInstance.Source, buffer, pcm, bufferSize, type);
if (readyToPlay)
{
return;
}
prebufferedCount++;
if (prebufferedCount < prebufferedTarget)
{
return;
}
readyToPlay = true;
ReadyToPlay.TrySetResult(true);
}
