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/*
* Copyright 2016, 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 SECURE_BUFFER_H_
#define SECURE_BUFFER_H_
#include <media/ICrypto.h>
#include <media/MediaCodecBuffer.h>
namespace android {
class NativeHandle;
/**
* Secure MediaCodecBuffer implementation.
*
* For classes outside of MediaCodec, this buffer is an opaque buffer only with
* the size information. For decryption, it exposes underlying handle/pointer
* and its type, which can be fed to ICrypto::decrypt().
*/
class SecureBuffer : public MediaCodecBuffer {
public:
SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size);
SecureBuffer(const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size);
virtual ~SecureBuffer() = default;
void *getDestinationPointer();
ICrypto::DestinationType getDestinationType();
private:
SecureBuffer() = delete;
const void *mPointer;
const sp<NativeHandle> mHandle;
};
} // namespace android
#endif // SECURE_BUFFER_H_