// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "media/cdm/default_cdm_factory.h" #include "base/bind.h" #include "base/callback_helpers.h" #include "base/location.h" #include "base/task/single_thread_task_runner.h" #include "base/threading/thread_task_runner_handle.h" #include "media/base/cdm_config.h" #include "media/base/content_decryption_module.h" #include "media/base/key_system_names.h" #include "media/base/media_switches.h" #include "media/cdm/aes_decryptor.h" #include "url/origin.h" namespace media { DefaultCdmFactory::DefaultCdmFactory() = default; DefaultCdmFactory::~DefaultCdmFactory() = default; static bool ShouldCreateAesDecryptor(const std::string& key_system) { if (IsClearKey(key_system)) return true; // Should create AesDecryptor to support External Clear Key key system. // This is used for testing. return base::FeatureList::IsEnabled(media::kExternalClearKeyForTesting) && IsExternalClearKey(key_system); } void DefaultCdmFactory::Create( const CdmConfig& cdm_config, const SessionMessageCB& session_message_cb, const SessionClosedCB& session_closed_cb, const SessionKeysChangeCB& session_keys_change_cb, const SessionExpirationUpdateCB& session_expiration_update_cb, CdmCreatedCB cdm_created_cb) { if (!ShouldCreateAesDecryptor(cdm_config.key_system)) { base::ThreadTaskRunnerHandle::Get()->PostTask( FROM_HERE, base::BindOnce(std::move(cdm_created_cb), nullptr, "Unsupported key system.")); return; } scoped_refptr cdm( new AesDecryptor(session_message_cb, session_closed_cb, session_keys_change_cb, session_expiration_update_cb)); base::ThreadTaskRunnerHandle::Get()->PostTask( FROM_HERE, base::BindOnce(std::move(cdm_created_cb), cdm, "")); } } // namespace media