Added support for ChannelMergerNode and ChannelSplitterNode.

samples/KristofferStrube.Blazor.WebAudio.WasmExample/Pages/Status.razor

@@ -32,7 +32,7 @@
         (157, 200),
         (202, 252),
         (254, 254),
-        (285, 315),
+        (285, 333),
         (388, 396),
         (446, 456),
         (461, 468)

src/KristofferStrube.Blazor.WebAudio/AudioNodes/ChannelMergerNode.cs

@@ -1,4 +1,7 @@
-using Microsoft.JSInterop;
+using KristofferStrube.Blazor.WebAudio.Extensions;
+using KristofferStrube.Blazor.WebAudio.Options;
+using KristofferStrube.Blazor.WebIDL.Exceptions;
+using Microsoft.JSInterop;
 
 namespace KristofferStrube.Blazor.WebAudio;
 
@@ -26,5 +29,23 @@ public class ChannelMergerNode : AudioNode
         return Task.FromResult(new ChannelMergerNode(jSRuntime, jSReference));
     }
 
+    /// <summary>
+    /// Creates an <see cref="ChannelMergerNode"/> using the standard constructor.
+    /// </summary>
+    /// <remarks>
+    /// It throws an <see cref="IndexSizeErrorException"/> if <see cref="ChannelMergerOptions.NumberOfInputs"/> is less than <c>1</c> or larger than the supported number of channels.
+    /// </remarks>
+    /// <param name="jSRuntime">An <see cref="IJSRuntime"/> instance.</param>
+    /// <param name="context">The <see cref="BaseAudioContext"/> this new <see cref="ChannelMergerNode"/> will be associated with.</param>
+    /// <param name="options">Optional initial parameter value for this <see cref="ChannelMergerNode"/>.</param>
+    /// <exception cref="IndexSizeErrorException"></exception>
+    /// <returns>A new instance of an <see cref="ChannelMergerNode"/>.</returns>
+    public static async Task<ChannelMergerNode> CreateAsync(IJSRuntime jSRuntime, BaseAudioContext context, ChannelMergerOptions? options = null)
+    {
+        IJSObjectReference helper = await jSRuntime.GetHelperAsync();
+        IJSObjectReference jSInstance = await helper.InvokeAsync<IJSObjectReference>("constructChannelMergerNode", context, options);
+        return new ChannelMergerNode(jSRuntime, jSInstance);
+    }
+
     private ChannelMergerNode(IJSRuntime jSRuntime, IJSObjectReference jSReference) : base(jSRuntime, jSReference) { }
 }

src/KristofferStrube.Blazor.WebAudio/AudioNodes/ChannelSplitterNode.cs

@@ -1,4 +1,7 @@
-using Microsoft.JSInterop;
+using KristofferStrube.Blazor.WebAudio.Extensions;
+using KristofferStrube.Blazor.WebAudio.Options;
+using KristofferStrube.Blazor.WebIDL.Exceptions;
+using Microsoft.JSInterop;
 
 namespace KristofferStrube.Blazor.WebAudio;
 
@@ -25,5 +28,23 @@ public class ChannelSplitterNode : AudioNode
         return Task.FromResult(new ChannelSplitterNode(jSRuntime, jSReference));
     }
 
+    /// <summary>
+    /// Creates an <see cref="ChannelSplitterNode"/> using the standard constructor.
+    /// </summary>
+    /// <remarks>
+    /// It throws an <see cref="IndexSizeErrorException"/> if <see cref="ChannelSplitterOptions.NumberOfInputs"/> is less than <c>1</c> or larger than the supported number of channels.
+    /// </remarks>
+    /// <param name="jSRuntime">An <see cref="IJSRuntime"/> instance.</param>
+    /// <param name="context">The <see cref="BaseAudioContext"/> this new <see cref="ChannelSplitterNode"/> will be associated with.</param>
+    /// <param name="options">Optional initial parameter value for this <see cref="ChannelSplitterNode"/>.</param>
+    /// <exception cref="IndexSizeErrorException"></exception>
+    /// <returns>A new instance of an <see cref="ChannelSplitterNode"/>.</returns>
+    public static async Task<ChannelSplitterNode> CreateAsync(IJSRuntime jSRuntime, BaseAudioContext context, ChannelSplitterOptions? options = null)
+    {
+        IJSObjectReference helper = await jSRuntime.GetHelperAsync();
+        IJSObjectReference jSInstance = await helper.InvokeAsync<IJSObjectReference>("constructChannelSplitterNode", context, options);
+        return new ChannelSplitterNode(jSRuntime, jSInstance);
+    }
+
     private ChannelSplitterNode(IJSRuntime jSRuntime, IJSObjectReference jSReference) : base(jSRuntime, jSReference) { }
 }

src/KristofferStrube.Blazor.WebAudio/Options/AudioNodeOptions.cs

@@ -3,7 +3,8 @@
 namespace KristofferStrube.Blazor.WebAudio;
 
 /// <summary>
-/// This specifies the options that can be used in constructing all <see cref="AudioNode"/>s. All members are optional. However, the specific values used for each node depends on the actual node.
+/// This specifies the options that can be used in constructing all <see cref="AudioNode"/>s.
+/// All members are optional. However, the specific values used for each node depends on the actual node.
 /// </summary>
 /// <remarks><see href="https://www.w3.org/TR/webaudio/#AudioNodeOptions">See the API definition here</see>.</remarks>
 public class AudioNodeOptions

src/KristofferStrube.Blazor.WebAudio/Options/ChannelMergerOptions.cs

@@ -0,0 +1,19 @@
+using KristofferStrube.Blazor.WebIDL.Exceptions;
+
+namespace KristofferStrube.Blazor.WebAudio.Options;
+
+
+/// <summary>
+/// This specifies the options to use in constructing a <see cref="ChannelMergerNode"/>.
+/// </summary>
+/// <remarks><see href="https://www.w3.org/TR/webaudio/#ChannelMergerOptions">See the API definition here</see>.</remarks>
+public class ChannelMergerOptions : AudioNodeOptions
+{
+    /// <summary>
+    /// The number inputs for the <see cref="ChannelMergerNode"/>.
+    /// </summary>
+    /// <remarks>
+    /// It throws an <see cref="IndexSizeErrorException"/> if it is less than <c>1</c> or larger than the supported number of channels when used for constructing a <see cref="ChannelMergerNode"/>.
+    /// </remarks>
+    public ulong NumberOfInputs { get; set; } = 6;
+}

src/KristofferStrube.Blazor.WebAudio/Options/ChannelSplitterOptions.cs

@@ -0,0 +1,18 @@
+using KristofferStrube.Blazor.WebIDL.Exceptions;
+
+namespace KristofferStrube.Blazor.WebAudio.Options;
+
+/// <summary>
+/// This specifies the options to use in constructing a <see cref="ChannelSplitterNode"/>.
+/// </summary>
+/// <remarks><see href="https://www.w3.org/TR/webaudio/#ChannelSplitterOptions">See the API definition here</see>.</remarks>
+public class ChannelSplitterOptions : AudioNodeOptions
+{
+    /// <summary>
+    /// The number inputs for the <see cref="ChannelSplitterNode"/>.
+    /// </summary>
+    /// <remarks>
+    /// It throws an <see cref="IndexSizeErrorException"/> if it is less than <c>1</c> or larger than the supported number of channels when used for constructing a <see cref="ChannelSplitterNode"/>.
+    /// </remarks>
+    public ulong NumberOfInputs { get; set; } = 6;
+}

src/KristofferStrube.Blazor.WebAudio/wwwroot/KristofferStrube.Blazor.WebAudio.js

@@ -42,6 +42,14 @@ export function constructBiquadFilterNode(context, options) {
     return new BiquadFilterNode(context, options);
 }
 
+export function constructChannelMergerNode(context, options) {
+    return new ChannelMergerNode(context, options);
+}
+
+export function constructChannelSplitterNode(context, options) {
+    return new ChannelSplitterNode(context, options);
+}
+
 export function constructAudioBuffer(options) {
     return new AudioBuffer(options);
 }