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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.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "BufferImpl"
#include <utils/Log.h>
#include <binder/IMemory.h>
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/AMessage.h>
#include <mediadrm/ICrypto.h>
#include <utils/NativeHandle.h>
#include "include/SecureBuffer.h"
#include "include/SharedMemoryBuffer.h"
namespace android {
// SharedMemoryBuffer
SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem)
// TODO: Using unsecurePointer() has some associated security pitfalls
// (see declaration for details).
// Either document why it is safe in this case or address the
// issue (e.g. by copying).
: MediaCodecBuffer(format, new ABuffer(mem->unsecurePointer(), mem->size())),
mMemory(mem) {
}
SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem)
: MediaCodecBuffer(format, new ABuffer(mem->getPointer(), mem->getSize())),
mTMemory(mem) {
}
// SecureBuffer
SecureBuffer::SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size)
: MediaCodecBuffer(format, new ABuffer(nullptr, size)),
mPointer(ptr) {
}
SecureBuffer::SecureBuffer(
const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size)
: MediaCodecBuffer(format, new ABuffer(nullptr, size)),
mPointer(nullptr),
mHandle(handle) {
}
void *SecureBuffer::getDestinationPointer() {
return (void *)(mHandle == nullptr ? mPointer : mHandle->handle());
}
ICrypto::DestinationType SecureBuffer::getDestinationType() {
return ICrypto::kDestinationTypeNativeHandle;
}
} // namespace android
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