An interface implemented by a webview if it supports providing access to its raw audio data (i.e. to route audio through Unity). If you wish to output audio as an AudioSource, the simplest approach is to enable WebViewPrefab.AudioSourceEnabled rather than to use this interface directly. By default, the browser engine outputs audio directly to the system, but this interface can be used to access audio programmatically instead. This interface is only supported on Windows and macOS (Chromium backend) because on other platforms (e.g. Android, iOS), the browser engines don't allow programmatic access to audio data. For an example of using this interface, see 3D WebView's WebAudioSource.cs script.
bool AudioStreamEnabled { get; }Gets a value indicating whether audio stream access is enabled for the webview.
await webViewPrefab.WaitUntilInitialized();
var webViewWithAudioStream = webViewPrefab.WebView as IWithAudioStream;
Debug.Log("Audio stream enabled: " + webViewWithAudioStream?.AudioStreamEnabled); void SetAudioStreamEnabled(bool enabled) Sets whether audio stream access is enabled for the webview.
Action<IWithAudioStream, float[][], int, int> AudioStreamPacketReceived Indicates that a new audio stream packet is ready to be played. For an example of using this event, see 3D WebView's WebAudioSource.cs script. Parameters passed to the event handler:
IWithAudioStream instance: The IWithAudioStream instance.float[][] audioBuffers: The audio data buffers, where the outer array specifies the channel and the inner array contains the audio frames for that channel. These arrays are statically allocated and reused. They can be larger than the amount of data provided for the packet, so use framesCount to get the actual number of frames to copy from them. If channelsCount is 2, then both buffers contains data. If channelsCount is 1, then only the first buffer contains data.int framesCount: The number of audio frames in each buffer.int channelsCount: The number of channels (i.e. 2 for stereo or 1 for mono).