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      1 /*
      2  * libjingle
      3  * Copyright 2004 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_MEDIA_BASE_NULLVIDEOFRAME_H_
     29 #define TALK_MEDIA_BASE_NULLVIDEOFRAME_H_
     30 
     31 #include "talk/media/base/videoframe.h"
     32 
     33 namespace cricket {
     34 
     35 // Simple subclass for use in mocks.
     36 class NullVideoFrame : public VideoFrame {
     37  public:
     38   virtual bool Reset(uint32 format, int w, int h, int dw, int dh, uint8 *sample,
     39                      size_t sample_size, size_t pixel_width,
     40                      size_t pixel_height, int64 elapsed_time, int64 time_stamp,
     41                      int rotation) {
     42     return false;
     43   }
     44   virtual bool InitToBlack(int w, int h, size_t pixel_width,
     45                            size_t pixel_height, int64 elapsed_time,
     46                            int64 time_stamp) {
     47     return false;
     48   }
     49   virtual size_t GetWidth() const { return 0; }
     50   virtual size_t GetHeight() const { return 0; }
     51   virtual const uint8 *GetYPlane() const { return NULL; }
     52   virtual const uint8 *GetUPlane() const { return NULL; }
     53   virtual const uint8 *GetVPlane() const { return NULL; }
     54   virtual uint8 *GetYPlane() { return NULL; }
     55   virtual uint8 *GetUPlane() { return NULL; }
     56   virtual uint8 *GetVPlane() { return NULL; }
     57   virtual int32 GetYPitch() const { return 0; }
     58   virtual int32 GetUPitch() const { return 0; }
     59   virtual int32 GetVPitch() const { return 0; }
     60   virtual void* GetNativeHandle() const { return NULL; }
     61 
     62   virtual size_t GetPixelWidth() const { return 1; }
     63   virtual size_t GetPixelHeight() const { return 1; }
     64   virtual int64 GetElapsedTime() const { return 0; }
     65   virtual int64 GetTimeStamp() const { return 0; }
     66   virtual void SetElapsedTime(int64 elapsed_time) {}
     67   virtual void SetTimeStamp(int64 time_stamp) {}
     68   virtual int GetRotation() const { return 0; }
     69 
     70   virtual VideoFrame *Copy() const { return NULL; }
     71 
     72   virtual bool MakeExclusive() { return false; }
     73 
     74   virtual size_t CopyToBuffer(uint8 *buffer, size_t size) const { return 0; }
     75 
     76   virtual size_t ConvertToRgbBuffer(uint32 to_fourcc, uint8 *buffer,
     77                                     size_t size, int stride_rgb) const {
     78     return 0;
     79   }
     80 
     81   virtual void StretchToPlanes(
     82       uint8 *y, uint8 *u, uint8 *v, int32 pitchY, int32 pitchU, int32 pitchV,
     83       size_t width, size_t height, bool interpolate, bool crop) const {}
     84 
     85   virtual VideoFrame *CreateEmptyFrame(int w, int h, size_t pixel_width,
     86                                        size_t pixel_height, int64 elapsed_time,
     87                                        int64 time_stamp) const {
     88     return NULL;
     89   }
     90 };
     91 
     92 }  // namespace cricket
     93 
     94 #endif  // TALK_MEDIA_BASE_NULLVIDEOFRAME_H_
     95