ppapi/api/private/pp_video_frame_private.idl

   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 /**
   7  * This file defines the struct used to hold a video frame.
   8  */
   9
  10 /**
  11  * The <code>PP_VideoFrame_Private</code> struct represents a video frame.
  12  * Video sources and destinations use frames to transfer video to and from
  13  * the browser.
  14  */
  15 [assert_size(16)]
  16 struct PP_VideoFrame_Private {
  17   /**
  18    * A timestamp placing the frame in a video stream.
  19    */
  20   PP_TimeTicks timestamp;
  21
  22   /**
  23    * An image data resource to hold the video frame.
  24    */
  25   PP_Resource image_data;
  26
  27   /**
  28    * Ensure that this struct is 16-bytes wide by padding the end.  In some
  29    * compilers, PP_TimeTicks is 8-byte aligned, so those compilers align this
  30    * struct on 8-byte boundaries as well and pad it to 8 bytes even without this
  31    * padding attribute.  This padding makes its size consistent across
  32    * compilers.
  33    */
  34   int32_t padding;
  35 };
  36