Quelle WMFClearKeyInputTrustAuthority.cpp Sprache: C

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "WMFClearKeyInputTrustAuthority.h"

#include <mfapi.h>
#include <mferror.h>

#include "WMFClearKeyActivate.h"
#include "WMFClearKeyCDM.h"
// #include "WMFClearKeyDecryptor.h"
#include "WMFClearKeyUtils.h"
#include "WMFClearKeyOutputPolicy.h"

namespace mozilla {

using Microsoft::WRL::ComPtr;
using Microsoft::WRL::MakeAndInitialize;

HRESULT WMFClearKeyInputTrustAuthority::RuntimeClassInitialize(
    UINT32 aStreamId, SessionManagerWrapper* aSessionManager) {
  ENTRY_LOG();
  mSessionManager = aSessionManager;
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::GetDecrypter(REFIID aRiid,
                                                          void** aPpv) {
  ENTRY_LOG();
  ComPtr<IMFTransform> decryptor;
  // TODO : As currently we are still not able to make decryption working in the
  // media foundation pipeline, we will finish the implementation for
  // WMFClearKeyDecryptor later.
  // RETURN_IF_FAILED((MakeAndInitialize<WMFClearKeyDecryptor, IMFTransform>(
  //     &decryptor, mSessionManager)));
  RETURN_IF_FAILED(decryptor.CopyTo(aRiid, aPpv));
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::RequestAccess(
    MFPOLICYMANAGER_ACTION aAction, IMFActivate** aContentEnablerActivate) {
  ENTRY_LOG_ARGS("aAction=%d", aAction);
  // The ITA only allows the PLAY, EXTRACT and NO actions
  // NOTE: Topology created only on the basis of EXTRACT or NO action will NOT
  // decrypt content.
  if (PEACTION_EXTRACT == aAction || PEACTION_NO == aAction) {
    return S_OK;
  }
  if (PEACTION_PLAY != aAction) {
    ENTRY_LOG_ARGS("Unsupported action");
    return MF_E_ITA_UNSUPPORTED_ACTION;
  }
  ComPtr<IMFActivate> activate;
  RETURN_IF_FAILED(MakeAndInitialize<WMFClearKeyActivate>(&activate));
  *aContentEnablerActivate = activate.Detach();
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::GetPolicy(
    MFPOLICYMANAGER_ACTION aAction, IMFOutputPolicy** aPolicy) {
  ENTRY_LOG();
  // For testing purpose, we don't need to set the output policy/
  *aPolicy = nullptr;
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::BindAccess(
    MFINPUTTRUSTAUTHORITY_ACCESS_PARAMS* aParams) {
  ENTRY_LOG();
  if (aParams == nullptr || aParams->dwVer != 0) {
    return E_INVALIDARG;
  }
  for (DWORD i = 0; i < aParams->cActions; ++i) {
    MFPOLICYMANAGER_ACTION action = aParams->rgOutputActions[i].Action;
    if (action != PEACTION_PLAY && action != PEACTION_EXTRACT &&
        action != PEACTION_NO) {
      ENTRY_LOG_ARGS("Unexpected action!");
      return MF_E_UNEXPECTED;
    }
  }
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::UpdateAccess(
    MFINPUTTRUSTAUTHORITY_ACCESS_PARAMS* aParams) {
  ENTRY_LOG();
  return BindAccess(aParams);
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::Reset() {
  NOT_IMPLEMENTED();
  return E_NOTIMPL;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::GetShutdownStatus(
    MFSHUTDOWN_STATUS* aStatus) {
  ENTRY_LOG();
  // https://learn.microsoft.com/en-us/windows/win32/api/mfidl/nf-mfidl-imfshutdown-getshutdownstatus#return-value
  if (mSessionManager->IsShutdown()) {
    return MF_E_INVALIDREQUEST;
  }
  return S_OK;
}

STDMETHODIMP WMFClearKeyInputTrustAuthority::Shutdown() {
  ENTRY_LOG();
  if (mSessionManager->IsShutdown()) {
    return MF_E_SHUTDOWN;
  }
  mSessionManager->Shutdown();
  return S_OK;
}

}  // namespace mozilla

quality93%

¤ Dauer der Verarbeitung: 0.16 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.