Make cricket::VideoCapturer implement VideoSourceInterface

talk/media/base/fakevideocapturer.h

Index: talk/media/base/fakevideocapturer.h
diff --git a/talk/media/base/fakevideocapturer.h b/talk/media/base/fakevideocapturer.h
index a668ea7d0c937467a80ae4736530d3336ea41afc..d7875ff14597ef35e71e21a38795fb6946423b1e 100644
--- a/talk/media/base/fakevideocapturer.h
+++ b/talk/media/base/fakevideocapturer.h
@@ -34,7 +34,7 @@
 
 #include "talk/media/base/videocapturer.h"
 #include "talk/media/base/videocommon.h"
-#include "talk/media/base/videoframe.h"
+#include "talk/media/webrtc/webrtcvideoframe.h"
 #include "webrtc/base/timeutils.h"
 #ifdef HAVE_WEBRTC_VIDEO
 #include "talk/media/webrtc/webrtcvideoframefactory.h"
@@ -132,6 +132,31 @@ class FakeVideoCapturer : public cricket::VideoCapturer {
     return true;
   }
 
+  void SetTime(int64_t t) {
+    next_timestamp_ = t;
+  }
+  // Helper function to generate a new frame and send it directly to
+  // |sink|, without using cricket::CapturedFrame SignalFrameCaptured.
+  void SendFrame(rtc::VideoSinkInterface<cricket::VideoFrame>* sink) {
+    int width = GetCaptureFormat()->width;
+    int height = GetCaptureFormat()->height;
+
+    rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer =
+      new rtc::RefCountedObject<webrtc::I420Buffer>(width, height);
+
+    memset(buffer->MutableData(webrtc::kYPlane), 1, width * height);
+    memset(buffer->MutableData(webrtc::kUPlane), 2,
+           (height+1)/2 * buffer->stride(webrtc::kUPlane));
+    memset(buffer->MutableData(webrtc::kVPlane), 3,
+           (height+1)/2 * buffer->stride(webrtc::kVPlane));
+
+    sink->OnFrame(WebRtcVideoFrame(buffer,
+                                   initial_unix_timestamp_ + next_timestamp_,
+                                   rotation_));
+
+    next_timestamp_ += GetCaptureFormat()->interval;
+  }
+
   void SignalCapturedFrame(cricket::CapturedFrame* frame) {
     SignalFrameCaptured(this, frame);
   }