Move VideoDecoderVp8 to VideoDecoderVpx base that will support VP8/9.
BUG=260879
Review URL: https://codereview.chromium.org/26888009
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229624 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/remoting/codec/video_decoder_vpx.h b/remoting/codec/video_decoder_vpx.h
new file mode 100644
index 0000000..800c873
--- /dev/null
+++ b/remoting/codec/video_decoder_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_DECODER_VPX_H_
+#define REMOTING_CODEC_VIDEO_DECODER_VPX_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "remoting/codec/scoped_vpx_codec.h"
+#include "remoting/codec/video_decoder.h"
+#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+#include "third_party/webrtc/modules/desktop_capture/desktop_region.h"
+
+typedef struct vpx_image vpx_image_t;
+
+namespace remoting {
+
+class VideoDecoderVpx : public VideoDecoder {
+ public:
+ // Creates a decoder for VP8.
+ static scoped_ptr<VideoDecoderVpx> CreateForVP8();
+
+ virtual ~VideoDecoderVpx();
+
+ // VideoDecoder interface.
+ virtual void Initialize(const webrtc::DesktopSize& screen_size) OVERRIDE;
+ virtual bool DecodePacket(const VideoPacket& packet) OVERRIDE;
+ virtual void Invalidate(const webrtc::DesktopSize& view_size,
+ const webrtc::DesktopRegion& region) OVERRIDE;
+ virtual void RenderFrame(const webrtc::DesktopSize& view_size,
+ const webrtc::DesktopRect& clip_area,
+ uint8* image_buffer,
+ int image_stride,
+ webrtc::DesktopRegion* output_region) OVERRIDE;
+ virtual const webrtc::DesktopRegion* GetImageShape() OVERRIDE;
+
+ private:
+ explicit VideoDecoderVpx(ScopedVpxCodec codec);
+
+ // Calculates the difference between the desktop shape regions in two
+ // consecutive frames and updates |updated_region_| and |transparent_region_|
+ // accordingly.
+ void UpdateImageShapeRegion(webrtc::DesktopRegion* new_desktop_shape);
+
+ ScopedVpxCodec codec_;
+
+ // Pointer to the last decoded image.
+ vpx_image_t* last_image_;
+
+ // The region updated that hasn't been copied to the screen yet.
+ webrtc::DesktopRegion updated_region_;
+
+ // Output dimensions.
+ webrtc::DesktopSize screen_size_;
+
+ // The region occupied by the top level windows.
+ webrtc::DesktopRegion desktop_shape_;
+
+ // The region that should be make transparent.
+ webrtc::DesktopRegion transparent_region_;
+
+ DISALLOW_COPY_AND_ASSIGN(VideoDecoderVpx);
+};
+
+} // namespace remoting
+
+#endif // REMOTING_CODEC_VIDEO_DECODER_VP8_H_
