110 строки
3.1 KiB
C#
110 строки
3.1 KiB
C#
#if __MACOS__
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using System;
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using System.Threading;
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using NUnit.Framework;
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using AppKit;
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using AudioUnit;
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using AudioToolbox;
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using Foundation;
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namespace Xamarin.Mac.Tests {
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[TestFixture]
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[Preserve (AllMembers = true)]
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public class AUGraphTests {
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int graphRenderCallbackCount = 0;
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int mixerRenderCallbackCount = 0;
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AUGraph graph;
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AudioUnit.AudioUnit mMixer;
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void SetupAUGraph ()
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{
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graph = new AUGraph ();
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AudioComponentDescription mixerDescription = new AudioComponentDescription ();
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mixerDescription.ComponentType = AudioComponentType.Mixer;
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#if NET
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mixerDescription.ComponentSubType = (AudioUnitSubType) AudioTypeMixer.MultiChannel;
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#else
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mixerDescription.ComponentSubType = (int)AudioTypeMixer.MultiChannel;
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#endif
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mixerDescription.ComponentFlags = 0;
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mixerDescription.ComponentFlagsMask = 0;
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mixerDescription.ComponentManufacturer = AudioComponentManufacturerType.Apple;
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AudioComponentDescription outputDesciption = new AudioComponentDescription ();
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outputDesciption.ComponentType = AudioComponentType.Output;
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#if NET
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outputDesciption.ComponentSubType = (AudioUnitSubType) AudioTypeOutput.System;
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#else
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outputDesciption.ComponentSubType = (int)AudioTypeOutput.System;
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#endif
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outputDesciption.ComponentFlags = 0;
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outputDesciption.ComponentFlagsMask = 0;
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outputDesciption.ComponentManufacturer = AudioComponentManufacturerType.Apple;
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int mixerNode = graph.AddNode (mixerDescription);
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int outputNode = graph.AddNode (outputDesciption);
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AUGraphError error = graph.ConnnectNodeInput (mixerNode, 0, outputNode, 0);
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Assert.AreEqual (AUGraphError.OK, error);
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graph.Open ();
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mMixer = graph.GetNodeInfo (mixerNode);
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AudioUnitStatus status = mMixer.SetElementCount (AudioUnitScopeType.Input, 0);
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Assert.AreEqual (AudioUnitStatus.OK, status);
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}
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[Test]
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public void DoTest ()
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{
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TestRuntime.AssertNotVirtualMachine ();
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SetupAUGraph ();
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// One of these has to be commented out depending on old\new build
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graph.AddRenderNotify (GraphRenderCallback);
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//graph.RenderCallback += HandleRenderCallback;
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AudioUnitStatus status = mMixer.SetRenderCallback (MixerRenderCallback);
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Assert.AreEqual (AudioUnitStatus.OK, status);
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WaitOnGraphAndMixerCallbacks ();
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}
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AudioUnitStatus GraphRenderCallback (AudioUnitRenderActionFlags actionFlags, AudioTimeStamp timeStamp, uint busNumber, uint numberFrames, AudioBuffers data)
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{
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graphRenderCallbackCount++;
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return AudioUnitStatus.NoError;
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}
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AudioUnitStatus MixerRenderCallback (AudioUnitRenderActionFlags actionFlags, AudioTimeStamp timeStamp, uint busNumber, uint numberFrames, AudioBuffers data)
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{
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mixerRenderCallbackCount++;
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return AudioUnitStatus.NoError;
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}
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void WaitOnGraphAndMixerCallbacks ()
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{
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graph.Initialize ();
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graph.Start ();
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// Wait for 1 second, then give up
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try {
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for (int i = 0; i < 100; ++i) {
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if (graphRenderCallbackCount > 0 && mixerRenderCallbackCount > 0)
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return;
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Thread.Sleep (10);
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}
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Assert.Fail ("Did not see events after 1 second");
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} finally {
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graph.Stop ();
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}
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}
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}
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}
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#endif // __MACOS__
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