1 files changed, 48 insertions, 0 deletions
diff --git a/third_party/libwebrtc/webrtc/media/base/videosourcebase.h b/third_party/libwebrtc/webrtc/media/base/videosourcebase.h
new file mode 100644
index 0000000000..f19d8fb587
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+++ b/third_party/libwebrtc/webrtc/media/base/videosourcebase.h
@@ -0,0 +1,48 @@
+/*
+ *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MEDIA_BASE_VIDEOSOURCEBASE_H_
+#define MEDIA_BASE_VIDEOSOURCEBASE_H_
+
+#include <vector>
+
+#include "api/video/video_frame.h"
+#include "media/base/videosourceinterface.h"
+#include "rtc_base/thread_checker.h"
+
+namespace rtc {
+
+// VideoSourceBase is not thread safe.
+class VideoSourceBase : public VideoSourceInterface<webrtc::VideoFrame> {
+ public:
+  VideoSourceBase();
+  void AddOrUpdateSink(VideoSinkInterface<webrtc::VideoFrame>* sink,
+                       const VideoSinkWants& wants) override;
+  void RemoveSink(VideoSinkInterface<webrtc::VideoFrame>* sink) override;
+
+ protected:
+  struct SinkPair {
+    SinkPair(VideoSinkInterface<webrtc::VideoFrame>* sink, VideoSinkWants wants)
+        : sink(sink), wants(wants) {}
+    VideoSinkInterface<webrtc::VideoFrame>* sink;
+    VideoSinkWants wants;
+  };
+  SinkPair* FindSinkPair(const VideoSinkInterface<webrtc::VideoFrame>* sink);
+
+  const std::vector<SinkPair>& sink_pairs() const { return sinks_; }
+  ThreadChecker thread_checker_;
+
+ private:
+  std::vector<SinkPair> sinks_;
+};
+
+}  // namespace rtc
+
+#endif  // MEDIA_BASE_VIDEOSOURCEBASE_H_