WebRTC Local Video Setup With Filter

WebRTCLocalVideoExample2.m

RTCVideoSource *source = [factory videoSource];

// VideoSourceからFilterを準備し
MyVideoSourceFilter *filter = [[MyVideoSourceFilter alloc] initWithSource:source];

// Capturerには、Filterを渡す
RTCVideoCapturer *capturer = [[RTCCameraVideoCapturer alloc] initWithDelegate:filter];

RTCVideoTrack *trakc = [factory videoTrackWithSource:source trackId:trackId];