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      1 /*
      2  * Copyright 2016, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 //#define LOG_NDEBUG 0
     18 #define LOG_TAG "BufferImpl"
     19 #include <utils/Log.h>
     20 
     21 #include <binder/IMemory.h>
     22 #include <media/stagefright/foundation/ABuffer.h>
     23 #include <media/stagefright/foundation/AMessage.h>
     24 #include <media/ICrypto.h>
     25 #include <utils/NativeHandle.h>
     26 
     27 #include "include/SecureBuffer.h"
     28 #include "include/SharedMemoryBuffer.h"
     29 
     30 namespace android {
     31 
     32 // SharedMemoryBuffer
     33 
     34 SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem)
     35     : MediaCodecBuffer(format, new ABuffer(mem->pointer(), mem->size())),
     36       mMemory(mem) {
     37 }
     38 
     39 SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem)
     40     : MediaCodecBuffer(format, new ABuffer(mem->getPointer(), mem->getSize())),
     41       mTMemory(mem) {
     42 }
     43 
     44 // SecureBuffer
     45 
     46 SecureBuffer::SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size)
     47     : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
     48       mPointer(ptr) {
     49 }
     50 
     51 SecureBuffer::SecureBuffer(
     52         const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size)
     53     : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
     54       mPointer(nullptr),
     55       mHandle(handle) {
     56 }
     57 
     58 void *SecureBuffer::getDestinationPointer() {
     59     return (void *)(mHandle == nullptr ? mPointer : mHandle->handle());
     60 }
     61 
     62 ICrypto::DestinationType SecureBuffer::getDestinationType() {
     63     return ICrypto::kDestinationTypeNativeHandle;
     64 }
     65 
     66 }  // namespace android
     67