1 files changed, 68 insertions, 0 deletions
diff --git a/remoting/codec/video_encoder_vpx.h b/remoting/codec/video_encoder_vpx.h
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+++ b/remoting/codec/video_encoder_vpx.h
@@ -0,0 +1,68 @@
+// Copyright 2013 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_VPX_H_
+#define REMOTING_CODEC_VIDEO_ENCODER_VPX_H_
+
+#include "base/callback.h"
+#include "remoting/codec/scoped_vpx_codec.h"
+#include "remoting/codec/video_encoder.h"
+
+typedef struct vpx_image vpx_image_t;
+
+namespace webrtc {
+class DesktopRegion;
+class DesktopSize;
+}  // namespace webrtc
+
+namespace remoting {
+
+// A class that uses VP8 to perform encoding.
+class VideoEncoderVpx : public VideoEncoder {
+ public:
+  // Creates a encoder for VP8.
+  static scoped_ptr<VideoEncoderVpx> CreateForVP8();
+
+  virtual ~VideoEncoderVpx();
+
+  // VideoEncoder interface.
+  virtual scoped_ptr<VideoPacket> Encode(
+      const webrtc::DesktopFrame& frame) OVERRIDE;
+
+ private:
+  typedef base::Callback<ScopedVpxCodec(const webrtc::DesktopSize&)>
+      InitializeCodecCallback;
+
+  VideoEncoderVpx(const InitializeCodecCallback& init_codec);
+
+  // Initializes the codec for frames of |size|. Returns true if successful.
+  bool Initialize(const webrtc::DesktopSize& size);
+
+  // Prepares |image_| for encoding. Writes updated rectangles into
+  // |updated_region|.
+  void PrepareImage(const webrtc::DesktopFrame& frame,
+                    webrtc::DesktopRegion* updated_region);
+
+  // Updates the active map according to |updated_region|. Active map is then
+  // given to the encoder to speed up encoding.
+  void PrepareActiveMap(const webrtc::DesktopRegion& updated_region);
+
+  InitializeCodecCallback init_codec_;
+
+  ScopedVpxCodec codec_;
+  scoped_ptr<vpx_image_t> image_;
+  scoped_ptr<uint8[]> active_map_;
+  int active_map_width_;
+  int active_map_height_;
+  int last_timestamp_;
+
+  // Buffer for storing the yuv image.
+  scoped_ptr<uint8[]> yuv_image_;
+
+  DISALLOW_COPY_AND_ASSIGN(VideoEncoderVpx);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CODEC_VIDEO_ENCODER_VP8_H_