ppapi/proxy/video_decoder_constants.h

   1 // Copyright (c) 2014 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 #ifndef PPAPI_PROXY_VIDEO_DECODER_CONSTANTS_H_
   6 #define PPAPI_PROXY_VIDEO_DECODER_CONSTANTS_H_
   7
   8 namespace ppapi {
   9 namespace proxy {
  10
  11 // These constants are shared by the video decoder resource and host.
  12 enum {
  13   // Maximum number of concurrent decodes which can be pending.
  14   kMaximumPendingDecodes = 8,
  15
  16   // Minimum size of shared-memory buffers (100 KB). Make them large since we
  17   // try to reuse them.
  18   kMinimumBitstreamBufferSize = 100 << 10,
  19
  20   // Maximum size of shared-memory buffers (4 MB). This should be enough even
  21   // for 4K video at reasonable compression levels.
  22   kMaximumBitstreamBufferSize = 4 << 20,
  23
  24   // The maximum number of pictures that the client can pass in for
  25   // min_picture_count, just as a sanity check on the argument.
  26   // This should match the constant of the same name in test_video_decoder.cc.
  27   kMaximumPictureCount = 100
  28 };
  29
  30 }  // namespace proxy
  31 }  // namespace ppapi
  32
  33 #endif  // PPAPI_PROXY_VIDEO_DECODER_CONSTANTS_H_