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Unified Diff: remoting/codec/video_encoder_helper.h

Issue 530243002: Move common VideoPacket initialization into VideoEncoderHelper. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Add unit tests Created 6 years, 3 months ago
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Index: remoting/codec/video_encoder_helper.h
diff --git a/remoting/codec/video_encoder_helper.h b/remoting/codec/video_encoder_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..c33fdb994f4c9bdba04ef8ad2ca1094e8dce9e93
--- /dev/null
+++ b/remoting/codec/video_encoder_helper.h
@@ -0,0 +1,46 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_CODEC_VIDEO_ENCODER_HELPER_H_
+#define REMOTING_CODEC_VIDEO_ENCODER_HELPER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+
+namespace webrtc {
+class DesktopFrame;
+class DesktopRegion;
+}
+
+namespace remoting {
+
+class VideoPacket;
+
+class VideoEncoderHelper {
+ public:
+ VideoEncoderHelper();
+
+ // Returns a new VideoPacket with common fields (e.g. capture_time_ms, rects
+ // list, frame shape if any) initialized based on the supplied |frame|.
+ // Screen width and height will be set iff |frame|'s size differs from that
+ // of the previously-supplied frame.
+ scoped_ptr<VideoPacket> CreateVideoPacket(const webrtc::DesktopFrame& frame);
+
+ // Returns a new VideoPacket with the common fields populated from |frame|,
+ // but the updated rects overridden by |updated_region|. This is useful for
+ // encoders which alter the updated region e.g. by expanding it to macroblock
+ // boundaries.
+ scoped_ptr<VideoPacket> CreateVideoPacketWithUpdatedRegion(
+ const webrtc::DesktopFrame& frame,
+ const webrtc::DesktopRegion& updated_region);
+ private:
+ // The most recent screen size. Used to detect screen size changes.
+ webrtc::DesktopSize screen_size_;
+
+ DISALLOW_COPY_AND_ASSIGN(VideoEncoderHelper);
+};
+
+} // namespace remoting
+
+#endif // REMOTING_CODEC_VIDEO_ENCODER_HELPER_H_
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