Implement timestamp translation/filter in VideoCapturer.

webrtc/media/base/videoframefactory.h

Index: webrtc/media/base/videoframefactory.h
diff --git a/webrtc/media/base/videoframefactory.h b/webrtc/media/base/videoframefactory.h
index 6aa2ce51733b0c01ea8d5187ace63865a2d32571..d1cc28d3d7c578f612c2364262aab6a6de7d4a90 100644
--- a/webrtc/media/base/videoframefactory.h
+++ b/webrtc/media/base/videoframefactory.h
@@ -24,7 +24,7 @@ class VideoFrame;
 // depending on the subclass of VideoFrameFactory.
 class VideoFrameFactory {
  public:
-  VideoFrameFactory() : apply_rotation_(false) {}
+  VideoFrameFactory() : apply_rotation_(false), timestamp_offset_us_(0) {}
   virtual ~VideoFrameFactory() {}
 
   // The returned frame aliases the aliased_frame if the input color
@@ -47,9 +47,11 @@ class VideoFrameFactory {
                                          int output_height) const;
 
   void SetApplyRotation(bool enable) { apply_rotation_ = enable; }
+  void SetTimestampOffset(int64_t offset) { timestamp_offset_us_ = offset; }
 
  protected:
   bool apply_rotation_;
+  int64_t timestamp_offset_us_;

[pthatcher1, 2016/05/27 22:47:44]

This could use a comment about what effect is has on frames.

[nisse-webrtc, 2016/05/30 08:57:30]

Done.

 
  private:
   // An internal frame buffer to avoid reallocations. It is mutable because it