Add support for windows. (flutter-webrtc#290)

* Add support for windows.

* Add .clang-format.

* Fix compile error for windows.

* Fix video renderer and data channel for windows.

* Update README.md

Author: cloudwebrtc

.clang-format

@@ -0,0 +1,12 @@
+# Defines the Chromium style for automatic reformatting.
+# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+BasedOnStyle: Chromium
+# This defaults to 'Auto'. Explicitly set it for a while, so that
+# 'vector<vector<int> >' in existing files gets formatted to
+# 'vector<vector<int>>'. ('Auto' means that clang-format will only use
+# 'int>>' if the file already contains at least one such instance.)
+Standard: Cpp11
+SortIncludes: true
+---
+Language: ObjC
+ColumnLimit: 100

README.md

@@ -8,8 +8,8 @@ WebRTC plugin for Flutter Mobile/Desktop/Web
 
 | Feature | Android | iOS | [Web](https://flutter.dev/web) | macOS | Windows | Linux | [Fuchsia](https://fuchsia.googlesource.com/) |
 | :-------------: | :-------------:| :-----: | :-----: | :-----: | :-----: | :-----: | :-----: |
-| Audio/Video | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | [WIP] | [WIP] | |
-| Data Channel | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | [WIP] | [WIP] | |
+| Audio/Video | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | [WIP] | |
+| Data Channel | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | [WIP] | |
 | Screen Capture | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | | | |
 | Unified-Plan | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | | |
 | Simulcast | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | | | |

example/lib/src/loopback_sample.dart

@@ -89,7 +89,7 @@ class _MyAppState extends State<LoopBackSample> {
 
   void _onAddStream(MediaStream stream) {
     print('New stream: ' + stream.id);
-    //_remoteRenderer.srcObject = stream;
+    _remoteRenderer.srcObject = stream;
   }
 
   void _onRemoveStream(MediaStream stream) {
@@ -175,7 +175,7 @@ class _MyAppState extends State<LoopBackSample> {
       _localStream =
           await navigator.mediaDevices.getUserMedia(mediaConstraints);
       _localRenderer.srcObject = _localStream;
-
+      await _peerConnection.addStream(_localStream);
       /* old API
       await _peerConnection.addStream(_localStream);
       // Unified-Plan
@@ -184,13 +184,13 @@ class _MyAppState extends State<LoopBackSample> {
       });
       */
       // or
-
+      /*
       await _peerConnection.addTransceiver(
         track: _localStream.getAudioTracks()[0],
         init: RTCRtpTransceiverInit(
             direction: TransceiverDirection.SendRecv, streams: [_localStream]),
       );
-
+      */
       /*
       // ignore: unused_local_variable
       var transceiver = await _peerConnection.addTransceiver(
@@ -200,6 +200,7 @@ class _MyAppState extends State<LoopBackSample> {
       );
       */
 
+      /*
       // Unified-Plan Simulcast
       await _peerConnection.addTransceiver(
           track: _localStream.getVideoTracks()[0],
@@ -227,7 +228,7 @@ class _MyAppState extends State<LoopBackSample> {
               ),
             ],
           ));
-      /*
+      
       await _peerConnection.addTransceiver(
           kind: RTCRtpMediaType.RTCRtpMediaTypeVideo);
       await _peerConnection.addTransceiver(

lib/src/native/media_stream_impl.dart

@@ -21,13 +21,13 @@ class MediaStreamNative extends MediaStream {
 
   void setMediaTracks(List<dynamic> audioTracks, List<dynamic> videoTracks) {
     _audioTracks.clear();
-    audioTracks.forEach((track) {
+    audioTracks?.forEach((track) {
       _audioTracks.add(MediaStreamTrackNative(
           track['id'], track['label'], track['kind'], track['enabled']));
     });
 
     _videoTracks.clear();
-    videoTracks.forEach((track) {
+    videoTracks?.forEach((track) {
       _videoTracks.add(MediaStreamTrackNative(
           track['id'], track['label'], track['kind'], track['enabled']));
     });

lib/src/native/rtc_video_view_impl.dart

@@ -51,13 +51,14 @@ class RTCVideoView extends StatelessWidget {
                 return SizedBox(
                   width: constraints.maxHeight * value.aspectRatio,
                   height: constraints.maxHeight,
-                  child: value.renderVideo ? child : Container(),
+                  child: child,
                 );
               },
               child: Transform(
                 transform: Matrix4.identity()..rotateY(mirror ? -pi : 0.0),
                 alignment: FractionalOffset.center,
-                child: videoRenderer.textureId != null
+                child: videoRenderer.textureId != null &&
+                        videoRenderer.srcObject != null
                     ? Texture(
                         textureId: videoRenderer.textureId,
                         filterQuality: filterQuality,

macos/WebRTC.framework/Headers

@@ -0,0 +1 @@
+Versions/Current/Headers

macos/WebRTC.framework/Headers

@@ -0,0 +1 @@
+Versions/Current/Modules