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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef VideoFrameChromiumImpl_h
     32 #define VideoFrameChromiumImpl_h
     33 
     34 #include "VideoFrameChromium.h"
     35 #include "WebVideoFrame.h"
     36 
     37 namespace WebKit {
     38 
     39 // A wrapper class for WebKit::WebVideoFrame. Objects can be created in WebKit
     40 // and used in WebCore because of the VideoFrameChromium interface.
     41 class VideoFrameChromiumImpl : public WebCore::VideoFrameChromium {
     42 public:
     43     // Converts a WebCore::VideoFrameChromium to a WebKit::WebVideoFrame.
     44     static WebVideoFrame* toWebVideoFrame(WebCore::VideoFrameChromium*);
     45 
     46     // Creates a VideoFrameChromiumImpl object to wrap the given WebVideoFrame.
     47     // The VideoFrameChromiumImpl does not take ownership of the WebVideoFrame
     48     // and should not free the frame's memory.
     49     VideoFrameChromiumImpl(WebVideoFrame*);
     50     virtual SurfaceType surfaceType() const;
     51     virtual Format format() const;
     52     virtual unsigned width() const;
     53     virtual unsigned width(unsigned plane) const;
     54     virtual unsigned height() const;
     55     virtual unsigned height(unsigned plane) const;
     56     virtual unsigned planes() const;
     57     virtual int stride(unsigned plane) const;
     58     virtual const void* data(unsigned plane) const;
     59     virtual unsigned texture(unsigned plane) const;
     60     virtual const WebCore::IntSize requiredTextureSize(unsigned plane) const;
     61     virtual bool hasPaddingBytes(unsigned plane) const;
     62 
     63 private:
     64     WebVideoFrame* m_webVideoFrame;
     65 };
     66 
     67 } // namespace WebKit
     68 
     69 #endif
     70