public AudioGraphEventArgs(AudioUnitRenderActionFlags actionFlags,
AudioTimeStamp timeStamp,
int busNumber,
int numberFrames,
AudioBufferList data)
: base(actionFlags, timeStamp, busNumber, numberFrames, data)
{
}
public AudioUnitEventArgs(AudioUnitRenderActionFlags actionFlags,
AudioTimeStamp timestamp,
int busNumber,
int frames,
AudioBufferList data)
{
ActionFlags = actionFlags;
this.TimeStamp = timestamp;
BusNumber = busNumber;
NumberFrames = frames;
Data = data;
}
static AudioUnitStatus RenderCallbackImpl (IntPtr clientData, ref AudioUnitRenderActionFlags actionFlags, ref AudioTimeStamp timeStamp, uint busNumber, uint numberFrames, IntPtr data)
{
GCHandle gch = GCHandle.FromIntPtr (clientData);
var au = (AUGraph) gch.Target;
RenderDelegate callback;
if (!au.nodesCallbacks.TryGetValue (busNumber, out callback))
return AudioUnitStatus.InvalidParameter;
using (var buffers = new AudioBuffers (data)) {
return callback (actionFlags, timeStamp, busNumber, numberFrames, buffers);
}
}
static AudioUnitStatus renderCallback(IntPtr inRefCon,
ref AudioUnitRenderActionFlags _ioActionFlags,
ref AudioTimeStamp _inTimeStamp,
uint _inBusNumber,
uint _inNumberFrames,
IntPtr _ioData)
{
// getting audiounit instance
var handler = GCHandle.FromIntPtr (inRefCon);
var inst = (AUGraph)handler.Target;
HashSet<RenderDelegate> renderers = inst.graphUserCallbacks;
if (renderers.Count != 0) {
using (var buffers = new AudioBuffers (_ioData)) {
foreach (RenderDelegate renderer in renderers)
renderer (_ioActionFlags, _inTimeStamp, _inBusNumber, _inNumberFrames, buffers);
return AudioUnitStatus.OK;
}
}
return AudioUnitStatus.InvalidParameter;
}
static int oldRenderCallback(IntPtr inRefCon,
ref AudioUnitRenderActionFlags _ioActionFlags,
ref AudioTimeStamp _inTimeStamp,
int _inBusNumber,
int _inNumberFrames,
AudioBufferList _ioData)
{
// getting audiounit instance
var handler = GCHandle.FromIntPtr(inRefCon);
var inst = (AUGraph)handler.Target;
// invoke event handler with an argument
if (inst.RenderCallback != null){
var args = new AudioGraphEventArgs(
_ioActionFlags,
_inTimeStamp,
_inBusNumber,
_inNumberFrames,
_ioData);
inst.RenderCallback(inst, args);
}
return 0; // noerror
}
