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Commit 47a86fb3 authored by John "Juce" Bruce's avatar John "Juce" Bruce Committed by Edwin Wong
Browse files

Add ClearKey Utilities 

Adds some utility functionality that is shared by multiple parts of
the ClearKey code.

Change-Id: I33a896eb68b2937918f145c9bd27174a119294b9
parent f92f22be

drm/mediadrm/plugins/clearkey/Android.mk

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#

# Copyright (C) 2014 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)



LOCAL_SRC_FILES := \

    Utils.cpp \



LOCAL_C_INCLUDES := \

    bionic \

    frameworks/av/drm/mediadrm/plugins/clearkey \

    frameworks/av/include \

    frameworks/native/include \



LOCAL_MODULE := libdrmclearkeyplugin



LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR_SHARED_LIBRARIES)/mediadrm



LOCAL_SHARED_LIBRARIES := \

    liblog \

    libstagefright_foundation \

    libutils \



LOCAL_MODULE_TAGS := optional



include $(BUILD_SHARED_LIBRARY)

drm/mediadrm/plugins/clearkey/ClearKeyTypes.h

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/*

 * Copyright (C) 2014 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifndef CLEARKEY_TYPES_H_

#define CLEARKEY_TYPES_H_



#include <media/hardware/CryptoAPI.h>

#include <utils/KeyedVector.h>

#include <utils/Vector.h>



namespace clearkeydrm {



const uint8_t kBlockSize = 16;

typedef uint8_t KeyId[kBlockSize];

typedef uint8_t Iv[kBlockSize];



typedef android::CryptoPlugin::SubSample SubSample;



typedef android::KeyedVector<android::Vector<uint8_t>,

        android::Vector<uint8_t> > KeyMap;



} // namespace clearkeydrm



#endif // CLEARKEY_TYPES_H_

drm/mediadrm/plugins/clearkey/Utils.cpp

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/*

 * Copyright (C) 2014 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include "Utils.h"



namespace android {



bool operator<(const Vector<uint8_t> &lhs, const Vector<uint8_t> &rhs) {

    if (lhs.size() < rhs.size()) {

        return true;

    } else if (lhs.size() > rhs.size()) {

        return false;

    }

    return memcmp((void *)lhs.array(), (void *)rhs.array(), rhs.size()) < 0;

}



} // namespace android

drm/mediadrm/plugins/clearkey/Utils.h

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/*

 * Copyright (C) 2014 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifndef CLEARKEY_UTILS_H_

#define CLEARKEY_UTILS_H_



#include <utils/Vector.h>



// Add a comparison operator for this Vector specialization so that it can be

// used as a key in a KeyedVector.

namespace android {



bool operator<(const Vector<uint8_t> &lhs, const Vector<uint8_t> &rhs);



} // namespace android



#define UNUSED(x) (void)(x);



#endif // CLEARKEY_UTILS_H_