LibWeb: Add `BaseAudioContext.createChannelSplitter()` factory method

Libraries/LibWeb/WebAudio/BaseAudioContext.cpp

@@ -91,6 +91,15 @@ WebIDL::ExceptionOr<GC::Ref<ChannelMergerNode>> BaseAudioContext::create_channel
     return ChannelMergerNode::create(realm(), *this, options);
 }
 
+// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createchannelsplitter
+WebIDL::ExceptionOr<GC::Ref<ChannelSplitterNode>> BaseAudioContext::create_channel_splitter(WebIDL::UnsignedLong number_of_outputs)
+{
+    ChannelSplitterOptions options;
+    options.number_of_outputs = number_of_outputs;
+
+    return ChannelSplitterNode::create(realm(), *this, options);
+}
+
 // https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createoscillator
 WebIDL::ExceptionOr<GC::Ref<OscillatorNode>> BaseAudioContext::create_oscillator()
 {

Libraries/LibWeb/WebAudio/BaseAudioContext.h

@@ -13,6 +13,7 @@
 #include <LibWeb/WebAudio/AudioListener.h>
 #include <LibWeb/WebAudio/BiquadFilterNode.h>
 #include <LibWeb/WebAudio/ChannelMergerNode.h>
+#include <LibWeb/WebAudio/ChannelSplitterNode.h>
 #include <LibWeb/WebIDL/Types.h>
 
 namespace Web::WebAudio {
@@ -59,6 +60,7 @@ public:
     WebIDL::ExceptionOr<GC::Ref<AudioBuffer>> create_buffer(WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate);
     WebIDL::ExceptionOr<GC::Ref<AudioBufferSourceNode>> create_buffer_source();
     WebIDL::ExceptionOr<GC::Ref<ChannelMergerNode>> create_channel_merger(WebIDL::UnsignedLong number_of_inputs);
+    WebIDL::ExceptionOr<GC::Ref<ChannelSplitterNode>> create_channel_splitter(WebIDL::UnsignedLong number_of_outputs);
     WebIDL::ExceptionOr<GC::Ref<OscillatorNode>> create_oscillator();
     WebIDL::ExceptionOr<GC::Ref<DynamicsCompressorNode>> create_dynamics_compressor();
     WebIDL::ExceptionOr<GC::Ref<GainNode>> create_gain();

Libraries/LibWeb/WebAudio/BaseAudioContext.idl

@@ -35,7 +35,7 @@ interface BaseAudioContext : EventTarget {
     AudioBuffer createBuffer(unsigned long numberOfChannels, unsigned long length, float sampleRate);
     AudioBufferSourceNode createBufferSource ();
     ChannelMergerNode createChannelMerger (optional unsigned long numberOfInputs = 6);
-    [FIXME] ChannelSplitterNode createChannelSplitter (optional unsigned long numberOfOutputs = 6);
+    ChannelSplitterNode createChannelSplitter (optional unsigned long numberOfOutputs = 6);
     [FIXME] ConstantSourceNode createConstantSource ();
     [FIXME] ConvolverNode createConvolver ();
     [FIXME] DelayNode createDelay (optional double maxDelayTime = 1.0);