Fix usage of {Audio/Video}Decoder.isConfigSupported() in example

Author: chrisguttandin

samples/lib/audio_renderer.js

@@ -31,7 +31,8 @@ export class AudioRenderer {
 
     debugLog(config);
 
-    console.assert(AudioDecoder.isConfigSupported(config));
+    let support = await AudioDecoder.isConfigSupported(config);
+    console.assert(support.supported);
     this.decoder.configure(config);
 
     // Initialize the ring buffer between the decoder and the real-time audio

samples/lib/video_renderer.js

@@ -31,7 +31,9 @@ export class VideoRenderer {
       output: this.bufferFrame.bind(this),
       error: e => console.error(e),
     });
-    console.assert(VideoDecoder.isConfigSupported(config))
+
+    let support = await VideoDecoder.isConfigSupported(config);
+    console.assert(support.supported);
     this.decoder.configure(config);
 
     this.init_resolver = null;