media/cdm/default_cdm_factory.cc

   1 // Copyright 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 #include "media/cdm/default_cdm_factory.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/location.h"
  10 #include "base/single_thread_task_runner.h"
  11 #include "base/thread_task_runner_handle.h"
  12 #include "media/base/key_systems.h"
  13 #include "media/cdm/aes_decryptor.h"
  14 #include "url/gurl.h"
  15
  16 namespace media {
  17
  18 DefaultCdmFactory::DefaultCdmFactory() {
  19 }
  20
  21 DefaultCdmFactory::~DefaultCdmFactory() {
  22 }
  23
  24 void DefaultCdmFactory::Create(
  25     const std::string& key_system,
  26     const GURL& security_origin,
  27     const CdmConfig& cdm_config,
  28     const SessionMessageCB& session_message_cb,
  29     const SessionClosedCB& session_closed_cb,
  30     const LegacySessionErrorCB& legacy_session_error_cb,
  31     const SessionKeysChangeCB& session_keys_change_cb,
  32     const SessionExpirationUpdateCB& session_expiration_update_cb,
  33     const CdmCreatedCB& cdm_created_cb) {
  34   if (!security_origin.is_valid()) {
  35     base::ThreadTaskRunnerHandle::Get()->PostTask(
  36         FROM_HERE, base::Bind(cdm_created_cb, nullptr, "Invalid origin."));
  37     return;
  38   }
  39   if (!CanUseAesDecryptor(key_system)) {
  40     base::ThreadTaskRunnerHandle::Get()->PostTask(
  41         FROM_HERE,
  42         base::Bind(cdm_created_cb, nullptr, "Unsupported key system."));
  43     return;
  44   }
  45
  46   scoped_ptr<MediaKeys> cdm(
  47       new AesDecryptor(security_origin, session_message_cb, session_closed_cb,
  48                        session_keys_change_cb));
  49   base::ThreadTaskRunnerHandle::Get()->PostTask(
  50       FROM_HERE, base::Bind(cdm_created_cb, base::Passed(&cdm), ""));
  51 }
  52
  53 }  // namespace media