media/base/media_win.cc

   1 // Copyright (c) 2012 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 #include "media/base/media.h"
   6
   7 #include <windows.h>
   8 #if defined(_WIN32_WINNT_WIN8)
   9 // The Windows 8 SDK defines FACILITY_VISUALCPP in winerror.h.
  10 #undef FACILITY_VISUALCPP
  11 #endif
  12 #include <delayimp.h>
  13
  14 #include "base/files/file_path.h"
  15
  16 #pragma comment(lib, "delayimp.lib")
  17
  18 namespace media {
  19 namespace internal {
  20
  21 bool InitializeMediaLibraryInternal(const base::FilePath& module_dir) {
  22   // LoadLibraryEx(..., LOAD_WITH_ALTERED_SEARCH_PATH) cannot handle
  23   // relative path.
  24   if (!module_dir.IsAbsolute())
  25     return false;
  26
  27   // Use alternate DLL search path so we don't load dependencies from the
  28   // system path.  Refer to http://crbug.com/35857
  29   static const char kFFmpegDLL[] = "ffmpegsumo.dll";
  30   HMODULE lib = ::LoadLibraryEx(
  31       module_dir.AppendASCII(kFFmpegDLL).value().c_str(), NULL,
  32       LOAD_WITH_ALTERED_SEARCH_PATH);
  33
  34   // Check that we loaded the library successfully.
  35   return lib != NULL;
  36 }
  37
  38 }  // namespace internal
  39 }  // namespace media