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153 lines
4.6 KiB
153 lines
4.6 KiB
4 months ago
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CLEARKEY_CAS_PLUGIN_H_
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#define CLEARKEY_CAS_PLUGIN_H_
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#include <media/cas/CasAPI.h>
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#include <media/cas/DescramblerAPI.h>
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#include <utils/Mutex.h>
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#include <utils/StrongPointer.h>
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extern "C" {
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android::CasFactory *createCasFactory();
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android::DescramblerFactory *createDescramblerFactory();
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}
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namespace android {
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namespace clearkeycas {
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class KeyFetcher;
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class ClearKeyCasSession;
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class ClearKeyCasFactory : public CasFactory {
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public:
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ClearKeyCasFactory() {}
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virtual ~ClearKeyCasFactory() {}
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virtual bool isSystemIdSupported(
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int32_t CA_system_id) const override;
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virtual status_t queryPlugins(
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std::vector<CasPluginDescriptor> *descriptors) const override;
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virtual status_t createPlugin(
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int32_t CA_system_id,
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void *appData,
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CasPluginCallback callback,
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CasPlugin **plugin) override;
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virtual status_t createPlugin(
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int32_t CA_system_id,
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void *appData,
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CasPluginCallbackExt callback,
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CasPlugin **plugin) override;
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};
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class ClearKeyDescramblerFactory : public DescramblerFactory {
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public:
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ClearKeyDescramblerFactory() {}
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virtual ~ClearKeyDescramblerFactory() {}
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virtual bool isSystemIdSupported(
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int32_t CA_system_id) const override;
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virtual status_t createPlugin(
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int32_t CA_system_id, DescramblerPlugin **plugin) override;
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};
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class ClearKeyCasPlugin : public CasPlugin {
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public:
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ClearKeyCasPlugin(void *appData, CasPluginCallback callback);
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ClearKeyCasPlugin(void *appData, CasPluginCallbackExt callback);
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virtual ~ClearKeyCasPlugin();
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virtual status_t setStatusCallback(
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CasPluginStatusCallback callback) override;
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virtual status_t setPrivateData(
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const CasData &data) override;
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virtual status_t openSession(CasSessionId *sessionId) override;
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virtual status_t openSession(uint32_t intent, uint32_t mode,
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CasSessionId *sessionId) override;
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virtual status_t closeSession(
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const CasSessionId &sessionId) override;
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virtual status_t setSessionPrivateData(
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const CasSessionId &sessionId,
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const CasData &data) override;
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virtual status_t processEcm(
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const CasSessionId &sessionId, const CasEcm &ecm) override;
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virtual status_t processEmm(const CasEmm &emm) override;
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virtual status_t sendEvent(
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int32_t event, int32_t arg, const CasData &eventData) override;
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virtual status_t sendSessionEvent(
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const CasSessionId &sessionId,
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int32_t event, int32_t arg, const CasData &eventData) override;
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virtual status_t provision(const String8 &str) override;
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virtual status_t refreshEntitlements(
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int32_t refreshType, const CasData &refreshData) override;
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private:
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Mutex mKeyFetcherLock;
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std::unique_ptr<KeyFetcher> mKeyFetcher;
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CasPluginCallback mCallback;
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CasPluginCallbackExt mCallbackExt;
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CasPluginStatusCallback mStatusCallback;
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void* mAppData;
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};
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class ClearKeyDescramblerPlugin : public DescramblerPlugin {
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public:
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ClearKeyDescramblerPlugin() {}
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virtual ~ClearKeyDescramblerPlugin() {};
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virtual bool requiresSecureDecoderComponent(
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const char *mime) const override;
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virtual status_t setMediaCasSession(
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const CasSessionId &sessionId) override;
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virtual ssize_t descramble(
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bool secure,
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ScramblingControl scramblingControl,
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size_t numSubSamples,
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const SubSample *subSamples,
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const void *srcPtr,
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int32_t srcOffset,
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void *dstPtr,
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int32_t dstOffset,
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AString *errorDetailMsg) override;
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private:
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std::shared_ptr<ClearKeyCasSession> mCASSession;
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String8 subSamplesToString(
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SubSample const *subSamples,
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size_t numSubSamples) const;
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String8 arrayToString(uint8_t const *array, size_t len) const;
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};
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} // namespace clearkeycas
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} // namespace android
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#endif // CLEARKEY_CAS_PLUGIN_H_
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