media/wmf-clearkey/WMFClearKeyCDMAccess.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "WMFClearKeyCDMAccess.h"
   6
   7 #include <Mferror.h>
   8 #include <oleauto.h>
   9
  10 #include "WMFClearKeyCDM.h"
  11 #include "WMFClearKeyUtils.h"
  12
  13 namespace mozilla {
  14
  15 using Microsoft::WRL::ComPtr;
  16 using Microsoft::WRL::MakeAndInitialize;
  17
  18 STDMETHODIMP WMFClearKeyCDMAccess::CreateContentDecryptionModule(
  19     IPropertyStore* aProperties, IMFContentDecryptionModule** aCdm) {
  20   ENTRY_LOG();
  21   if (!aProperties) {
  22     ENTRY_LOG_ARGS("Null properties!");
  23     return MF_E_UNEXPECTED;
  24   }
  25
  26   *aCdm = nullptr;
  27   ComPtr<IMFContentDecryptionModule> cdm;
  28   RETURN_IF_FAILED(
  29       (MakeAndInitialize<WMFClearKeyCDM, IMFContentDecryptionModule>(
  30           &cdm, aProperties)));
  31   *aCdm = cdm.Detach();
  32   ENTRY_LOG_ARGS("Created clearkey CDM!");
  33   return S_OK;
  34 }
  35
  36 STDMETHODIMP WMFClearKeyCDMAccess::GetConfiguration(IPropertyStore** aConfig) {
  37   NOT_IMPLEMENTED();
  38   return E_NOTIMPL;
  39 }
  40
  41 STDMETHODIMP WMFClearKeyCDMAccess::GetKeySystem(LPWSTR* aKeySystem) {
  42   ENTRY_LOG();
  43   *aKeySystem = (LPWSTR)CoTaskMemAlloc((wcslen(kCLEARKEY_SYSTEM_NAME) + 1) *
  44                                        sizeof(wchar_t));
  45   if (*aKeySystem == NULL) {
  46     return E_OUTOFMEMORY;
  47   }
  48   wcscpy_s(*aKeySystem, wcslen(kCLEARKEY_SYSTEM_NAME) + 1,
  49            kCLEARKEY_SYSTEM_NAME);
  50   return S_OK;
  51 }
  52
  53 }  // namespace mozilla