[web] Switch transferFromImageBitmap to be invoked using js.callMethod (flutter-webrtc#631)

kenoung · Ken Oung · web-flow · commit 6b42c510e78d · 2021-07-15T06:40:55.000+08:00
The current implementation of captureFrame works in debug mode but fails in profile and release mode with `TypeError: ... is not a function`. This commit uses js.callMethod to invoke the method instead of using the native api, which seems to resolve this issue. Fixes flutter-webrtc#621 Co-authored-by: Ken Oung <kenoungyq@gmail.com>
diff --git a/lib/src/web/media_stream_track_impl.dart b/lib/src/web/media_stream_track_impl.dart
@@ -67,7 +67,7 @@ class MediaStreamTrackWeb extends MediaStreamTrack {
     canvas.height = bitmap.height;
     final renderer =
         canvas.getContext('bitmaprenderer') as html.ImageBitmapRenderingContext;
-    renderer.transferFromImageBitmap(bitmap);
+    js.callMethod(renderer, 'transferFromImageBitmap', [bitmap]);
     final blod = await canvas.toBlob();
     var array =
         await js.promiseToFuture(js.callMethod(blod, 'arrayBuffer', []));
