ppapi/c/private/pp_video_frame_private.h

   1 /* Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2  * Use of this source code is governed by a BSD-style license that can be
   3  * found in the LICENSE file.
   4  */
   5
   6 /* From private/pp_video_frame_private.idl modified Wed Apr 24 11:49:01 2013. */
   7
   8 #ifndef PPAPI_C_PRIVATE_PP_VIDEO_FRAME_PRIVATE_H_
   9 #define PPAPI_C_PRIVATE_PP_VIDEO_FRAME_PRIVATE_H_
  10
  11 #include "ppapi/c/pp_macros.h"
  12 #include "ppapi/c/pp_resource.h"
  13 #include "ppapi/c/pp_stdint.h"
  14 #include "ppapi/c/pp_time.h"
  15
  16 /**
  17  * @file
  18  * This file defines the struct used to hold a video frame.
  19  */
  20
  21
  22 /**
  23  * @addtogroup Structs
  24  * @{
  25  */
  26 /**
  27  * The <code>PP_VideoFrame_Private</code> struct represents a video frame.
  28  * Video sources and destinations use frames to transfer video to and from
  29  * the browser.
  30  */
  31 struct PP_VideoFrame_Private {
  32   /**
  33    * A timestamp placing the frame in a video stream.
  34    */
  35   PP_TimeTicks timestamp;
  36   /**
  37    * An image data resource to hold the video frame.
  38    */
  39   PP_Resource image_data;
  40   /**
  41    * Ensure that this struct is 16-bytes wide by padding the end.  In some
  42    * compilers, PP_TimeTicks is 8-byte aligned, so those compilers align this
  43    * struct on 8-byte boundaries as well and pad it to 8 bytes even without this
  44    * padding attribute.  This padding makes its size consistent across
  45    * compilers.
  46    */
  47   int32_t padding;
  48 };
  49 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_VideoFrame_Private, 16);
  50 /**
  51  * @}
  52  */
  53
  54 #endif  /* PPAPI_C_PRIVATE_PP_VIDEO_FRAME_PRIVATE_H_ */
  55