public THPStream(THPNode node)
{
byte *sPtr;
short yn1 = 0, yn2 = 0;
_numChannels = (int)node.Channels;
_sampleRate = (int)node.Frequency;
_numSamples = (int)node.NumSamples;
_numBlocks = (int)node.NumFrames;
_blockStates = new ADPCMState[_numChannels, _numBlocks];
_currentStates = new ADPCMState[_numChannels];
_audioBlocks = new THPAudioBlock[_numBlocks];
//Fill block states in a linear fashion
for (int frame = 0; frame < node.NumFrames; frame++)
{
THPFrame f = node._frames[frame];
ThpAudioFrameHeader *header = f.Audio;
for (int channel = 0; channel < _numChannels; channel++)
{
sPtr = header->GetAudioChannel(channel);
short[] coefs;
if (channel == 0)
{
yn1 = header->_c1yn1;
yn2 = header->_c1yn2;
coefs = header->Coefs1;
}
else
{
yn1 = header->_c2yn1;
yn2 = header->_c2yn2;
coefs = header->Coefs2;
}
//Get block state
_blockStates[channel, frame] =
new ADPCMState(sPtr, *sPtr, yn1, yn2, coefs); //Use ps from data stream
}
_audioBlocks[frame] = new THPAudioBlock(header->_blockSize, header->_numSamples);
}
}
public THPFrame(VoidPtr addr, uint size, THPNode node)
{
_source = new DataSource(addr, (int)size);
_node = node;
}
public THPStream(THPNode node)
{
byte* sPtr;
short yn1 = 0, yn2 = 0;
_numChannels = (int)node.Channels;
_sampleRate = (int)node.Frequency;
_numSamples = (int)node.NumSamples;
_numBlocks = (int)node.NumFrames;
_blockStates = new ADPCMState[_numChannels, _numBlocks];
_currentStates = new ADPCMState[_numChannels];
_audioBlocks = new THPAudioBlock[_numBlocks];
//Fill block states in a linear fashion
for (int frame = 0; frame < node.NumFrames; frame++)
{
THPFrame f = node._frames[frame];
ThpAudioFrameHeader* header = f.Audio;
for (int channel = 0; channel < _numChannels; channel++)
{
sPtr = header->GetAudioChannel(channel);
short[] coefs;
if (channel == 0)
{
yn1 = header->_c1yn1;
yn2 = header->_c1yn2;
coefs = header->Coefs1;
}
else
{
yn1 = header->_c2yn1;
yn2 = header->_c2yn2;
coefs = header->Coefs2;
}
//Get block state
_blockStates[channel, frame] = new ADPCMState(sPtr, *sPtr, yn1, yn2, coefs); //Use ps from data stream
}
_audioBlocks[frame] = new THPAudioBlock(header->_blockSize, header->_numSamples);
}
}
public THPFrame(VoidPtr addr, uint size, THPNode node)
{
_source = new DataSource(addr, (int)size);
_node = node;
}
private void TargetChanged(THPNode newTarget)
{
if (_targetSource == newTarget)
return;
Close();
if ((_targetSource = newTarget) == null)
return;
previewPanel1.RenderingTarget = _targetSource;
IAudioStream s = _targetSource._audio;
//Create provider
if (_provider == null && s != null)
{
_provider = AudioProvider.Create(null);
_provider.Attach(this);
}
chkLoop.Checked = false;
//Create buffer for stream
if (s != null)
_buffer = _provider.CreateBuffer(s);
if (_targetSource.FrameRate > 0)
_frameTime = new DateTime((long)((float)_targetSource.NumFrames * 10000000.0f / _targetSource.FrameRate));
trackBar1.Value = 0;
trackBar1.TickStyle = TickStyle.None;
trackBar1.Maximum = (int)_targetSource.NumFrames;
trackBar1.TickFrequency = (int)_targetSource.NumFrames;
trackBar1.TickStyle = TickStyle.BottomRight;
if (_targetSource.FrameRate > 0)
UpdateTimeDisplay();
Enabled = _targetSource.NumFrames > 0;
}
private void Close()
{
//Stop playback
Stop();
_targetSource = null;
//Reset fields
chkLoop.Checked = false;
}
