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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 VideoFrameChromium_h
     32 #define VideoFrameChromium_h
     33 
     34 #include "IntSize.h"
     35 
     36 namespace WebCore {
     37 
     38 // A class that represents a video frame in chromium.
     39 class VideoFrameChromium {
     40 public:
     41     static const unsigned maxPlanes;
     42     static const unsigned numRGBPlanes;
     43     static const unsigned rgbPlane;
     44     static const unsigned numYUVPlanes;
     45     static const unsigned yPlane;
     46     static const unsigned uPlane;
     47     static const unsigned vPlane;
     48 
     49     // These enums must be kept in sync with WebKit::WebVideoFrame.
     50     enum Format {
     51         Invalid,
     52         RGB555,
     53         RGB565,
     54         RGB24,
     55         RGB32,
     56         RGBA,
     57         YV12,
     58         YV16,
     59         NV12,
     60         Empty,
     61         ASCII,
     62     };
     63 
     64     enum SurfaceType {
     65         TypeSystemMemory,
     66         TypeTexture,
     67     };
     68 
     69     virtual SurfaceType surfaceType() const = 0;
     70     virtual Format format() const = 0;
     71     virtual unsigned width() const = 0;
     72     virtual unsigned width(unsigned plane) const = 0;
     73     virtual unsigned height() const = 0;
     74     virtual unsigned height(unsigned plane) const = 0;
     75     virtual unsigned planes() const = 0;
     76     virtual int stride(unsigned plane) const = 0;
     77     virtual const void* data(unsigned plane) const = 0;
     78     virtual unsigned texture(unsigned plane) const = 0;
     79     virtual const IntSize requiredTextureSize(unsigned plane) const = 0;
     80     virtual bool hasPaddingBytes(unsigned plane) const = 0;
     81 };
     82 
     83 } // namespace WebCore
     84 
     85 #endif
     86