unsafe void TapProcess(MTAudioProcessingTap tap, nint numberFrames, MTAudioProcessingTapFlags flags,
AudioBuffers bufferList,
out nint numberFramesOut,
out MTAudioProcessingTapFlags flagsOut)
{
numberFramesOut = 0;
flagsOut = (MTAudioProcessingTapFlags)0;
// Skip processing when format not supported.
if (!context.SupportedTapProcessingFormat)
{
Console.WriteLine("Unsupported tap processing format.");
return;
}
if (IsBandpassFilterEnabled)
{
// Apply bandpass filter Audio Unit.
if (context.AudioUnit != null)
{
var audioTimeStamp = new AudioTimeStamp
{
SampleTime = context.SampleCount,
Flags = AudioTimeStamp.AtsFlags.SampleTimeValid
};
var f = (AudioUnitRenderActionFlags)0;
var status = context.AudioUnit.Render(ref f, audioTimeStamp, 0, (uint)numberFrames, bufferList);
if (status != AudioUnitStatus.NoError)
{
Console.WriteLine("AudioUnitRender(): {0}", status);
return;
}
// Increment sample count for audio unit.
context.SampleCount += numberFrames;
// Set number of frames out.
numberFramesOut = numberFrames;
}
}
else
{
// Get actual audio buffers from MTAudioProcessingTap (AudioUnitRender() will fill bufferListInOut otherwise).
CMTimeRange tr;
var status = tap.GetSourceAudio(numberFrames, bufferList, out flagsOut, out tr, out numberFramesOut);
if (status != MTAudioProcessingTapError.None)
{
Console.WriteLine("MTAudioProcessingTapGetSourceAudio: {0}", status);
return;
}
}
UpdateVolumes(bufferList, numberFrames);
}
static void ProcessProxy(IntPtr tap, int numberFrames, MTAudioProcessingTapFlags flags,
IntPtr bufferList, out int numberFramesOut, out MTAudioProcessingTapFlags flagsOut)
{
long numberOut;
MTAudioProcessingTap apt;
lock (handles)
apt = handles [tap];
apt.callbacks.Processing(apt, (long)numberFrames, flags, new AudioBuffers(bufferList), out numberOut, out flagsOut);
numberFramesOut = (int)numberOut;
}
static void ProcessProxy(IntPtr tap, IntPtr numberFrames, MTAudioProcessingTapFlags flags,
IntPtr bufferList, out IntPtr numberFramesOut, out MTAudioProcessingTapFlags flagsOut)
{
// from here we do not have access to `clientInfo` so it's not possible to use the GCHandle to get the
// MTAudioProcessingTap managed instance. Instead we get it from a static Dictionary
nint numberOut;
MTAudioProcessingTap apt;
lock (handles)
apt = handles [tap];
apt.callbacks.Processing(apt, (nint)numberFrames, flags, new AudioBuffers(bufferList), out numberOut, out flagsOut);
numberFramesOut = (IntPtr)numberOut;
}
public MTAudioProcessingTapError GetSourceAudio(nint frames, AudioBuffers bufferList, out MTAudioProcessingTapFlags flags, out CMTimeRange timeRange, out nint framesProvided)
{
if (bufferList == null)
{
throw new ArgumentNullException("bufferList");
}
IntPtr result;
var r = MTAudioProcessingTapGetSourceAudio(handle, (IntPtr)frames, (IntPtr)bufferList, out flags, out timeRange, out result);
framesProvided = (nint)result;
return(r);
}
extern static /* OSStatus */ MTAudioProcessingTapError MTAudioProcessingTapGetSourceAudio(
/* MTAudioProcessingTapRef */ IntPtr tap, IntPtr numberFrames,
/* AudioBufferList* */ IntPtr bufferListInOut,
out MTAudioProcessingTapFlags flagsOut, out CMTimeRange timeRangeOut, out IntPtr numberFramesOut);
public MTAudioProcessingTapError GetSourceAudio(int frames, AudioBuffers bufferList, out MTAudioProcessingTapFlags flags, out CMTimeRange timeRange, out int framesProvided)
{
if (bufferList == null)
{
throw new ArgumentNullException("bufferList");
}
return(MTAudioProcessingTapGetSourceAudio(handle, frames, (IntPtr)bufferList, out flags, out timeRange, out framesProvided));
}
public MTAudioProcessingTapError GetSourceAudio(long frames, ref AudioBufferList bufferList, out MTAudioProcessingTapFlags flags,
out CMTimeRange timeRange, long framesProvided)
{
int outFp;
return(MTAudioProcessingTapGetSourceAudio(handle, (int)frames, ref bufferList, out flags, out timeRange, out outFp));
}
static void ProcessProxy (IntPtr tap, int numberFrames, MTAudioProcessingTapFlags flags,
IntPtr bufferList, out int numberFramesOut, out MTAudioProcessingTapFlags flagsOut)
{
long numberOut;
MTAudioProcessingTap apt;
lock (handles)
apt = handles [tap];
apt.callbacks.Processing (apt, (long) numberFrames, flags, new AudioBuffers (bufferList), out numberOut, out flagsOut);
numberFramesOut = (int) numberOut;
}
public MTAudioProcessingTapError GetSourceAudio (int frames, AudioBuffers bufferList, out MTAudioProcessingTapFlags flags, out CMTimeRange timeRange, out int framesProvided)
{
if (bufferList == null)
throw new ArgumentNullException ("bufferList");
return MTAudioProcessingTapGetSourceAudio (handle, frames, (IntPtr) bufferList, out flags, out timeRange, out framesProvided);
}
public MTAudioProcessingTapError GetSourceAudio (long frames, AudioBuffers bufferList, out MTAudioProcessingTapFlags flags,
out CMTimeRange timeRange, long framesProvided)
{
if (bufferList == null)
throw new ArgumentNullException ("bufferList");
int result;
var r = MTAudioProcessingTapGetSourceAudio (handle, (int) frames, (IntPtr) bufferList, out flags, out timeRange, out result);
return r;
}
extern static /* OSStatus */ MTAudioProcessingTapError MTAudioProcessingTapGetSourceAudio ( /* MTAudioProcessingTapRef */ IntPtr tap, int numberFrames, /* AudioBufferList* */ IntPtr bufferListInOut, out MTAudioProcessingTapFlags flagsOut, out CMTimeRange timeRangeOut, out int numberFramesOut);
public MTAudioProcessingTapError GetSourceAudio (long frames, ref AudioBufferList bufferList, out MTAudioProcessingTapFlags flags,
out CMTimeRange timeRange, long framesProvided)
{
int outFp;
return MTAudioProcessingTapGetSourceAudio (handle, (int) frames, ref bufferList, out flags, out timeRange, out outFp);
}
static void ProcessProxy (IntPtr tap, IntPtr numberFrames, MTAudioProcessingTapFlags flags,
IntPtr bufferList, out IntPtr numberFramesOut, out MTAudioProcessingTapFlags flagsOut)
{
// from here we do not have access to `clientInfo` so it's not possible to use the GCHandle to get the
// MTAudioProcessingTap managed instance. Instead we get it from a static Dictionary
nint numberOut;
MTAudioProcessingTap apt;
lock (handles)
apt = handles [tap];
apt.callbacks.Processing (apt, (nint) numberFrames, flags, new AudioBuffers (bufferList), out numberOut, out flagsOut);
numberFramesOut = (IntPtr) numberOut;
}
unsafe void TapProcess (MTAudioProcessingTap tap, nint numberFrames, MTAudioProcessingTapFlags flags,
AudioBuffers bufferList,
out nint numberFramesOut,
out MTAudioProcessingTapFlags flagsOut)
{
numberFramesOut = 0;
flagsOut = (MTAudioProcessingTapFlags)0;
// Skip processing when format not supported.
if (!context.SupportedTapProcessingFormat) {
Console.WriteLine ("Unsupported tap processing format.");
return;
}
if (IsBandpassFilterEnabled) {
// Apply bandpass filter Audio Unit.
if (context.AudioUnit != null) {
var audioTimeStamp = new AudioTimeStamp {
SampleTime = context.SampleCount,
Flags = AudioTimeStamp.AtsFlags.SampleTimeValid
};
var f = (AudioUnitRenderActionFlags)0;
var status = context.AudioUnit.Render (ref f, audioTimeStamp, 0, (uint)numberFrames, bufferList);
if (status != AudioUnitStatus.NoError) {
Console.WriteLine ("AudioUnitRender(): {0}", status);
return;
}
// Increment sample count for audio unit.
context.SampleCount += numberFrames;
// Set number of frames out.
numberFramesOut = numberFrames;
}
} else {
// Get actual audio buffers from MTAudioProcessingTap (AudioUnitRender() will fill bufferListInOut otherwise).
CMTimeRange tr;
MTAudioProcessingTapError status = tap.GetSourceAudio (numberFrames, bufferList, out flagsOut, out tr, out numberFramesOut);
if (status != MTAudioProcessingTapError.None) {
Console.WriteLine ("MTAudioProcessingTapGetSourceAudio: {0}", status);
return;
}
}
UpdateVolumes (bufferList, numberFrames);
}
