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185 lines
4.6 KiB
185 lines
4.6 KiB
/*
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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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//#define LOG_NDEBUG 0
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#define LOG_TAG "MediaCas"
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#include <media/MediaCasDefs.h>
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#include <utils/Log.h>
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#include <binder/IMemory.h>
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namespace android {
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namespace media {
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///////////////////////////////////////////////////////////////////////////////
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namespace MediaCas {
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status_t ParcelableCasData::readFromParcel(const Parcel* parcel) {
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return parcel->readByteVector(this);
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}
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status_t ParcelableCasData::writeToParcel(Parcel* parcel) const {
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return parcel->writeByteVector(*this);
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}
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///////////////////////////////////////////////////////////////////////////////
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status_t ParcelableCasPluginDescriptor::readFromParcel(const Parcel* /*parcel*/) {
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ALOGE("CAPluginDescriptor::readFromParcel() shouldn't be called");
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return INVALID_OPERATION;
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}
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status_t ParcelableCasPluginDescriptor::writeToParcel(Parcel* parcel) const {
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status_t err = parcel->writeInt32(mCASystemId);
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if (err != NO_ERROR) {
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return err;
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}
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return parcel->writeString16(mName);
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}
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} // namespace MediaCas
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///////////////////////////////////////////////////////////////////////////////
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namespace MediaDescrambler {
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DescrambleInfo::DescrambleInfo() {}
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DescrambleInfo::~DescrambleInfo() {}
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status_t DescrambleInfo::readFromParcel(const Parcel* parcel) {
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status_t err = parcel->readInt32((int32_t*)&dstType);
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if (err != OK) {
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return err;
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}
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if (dstType != kDestinationTypeNativeHandle
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&& dstType != kDestinationTypeVmPointer) {
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return BAD_VALUE;
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}
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err = parcel->readInt32((int32_t*)&scramblingControl);
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if (err != OK) {
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return err;
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}
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err = parcel->readUint32((uint32_t*)&numSubSamples);
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if (err != OK) {
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return err;
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}
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if (numSubSamples > 0xffff) {
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return BAD_VALUE;
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}
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subSamples = new DescramblerPlugin::SubSample[numSubSamples];
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if (subSamples == NULL) {
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return NO_MEMORY;
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}
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for (size_t i = 0; i < numSubSamples; i++) {
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err = parcel->readUint32(&subSamples[i].mNumBytesOfClearData);
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if (err != OK) {
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return err;
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}
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err = parcel->readUint32(&subSamples[i].mNumBytesOfEncryptedData);
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if (err != OK) {
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return err;
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}
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}
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srcMem = interface_cast<IMemory>(parcel->readStrongBinder());
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if (srcMem == NULL) {
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return BAD_VALUE;
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}
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err = parcel->readInt32(&srcOffset);
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if (err != OK) {
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return err;
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}
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native_handle_t *nativeHandle = NULL;
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if (dstType == kDestinationTypeNativeHandle) {
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nativeHandle = parcel->readNativeHandle();
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dstPtr = static_cast<void *>(nativeHandle);
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} else {
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dstPtr = NULL;
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}
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err = parcel->readInt32(&dstOffset);
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if (err != OK) {
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return err;
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}
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return OK;
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}
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status_t DescrambleInfo::writeToParcel(Parcel* parcel) const {
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if (dstType != kDestinationTypeNativeHandle
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&& dstType != kDestinationTypeVmPointer) {
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return BAD_VALUE;
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}
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status_t err = parcel->writeInt32((int32_t)dstType);
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if (err != OK) {
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return err;
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}
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err = parcel->writeInt32(scramblingControl);
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if (err != OK) {
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return err;
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}
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err = parcel->writeUint32(numSubSamples);
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if (err != OK) {
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return err;
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}
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for (size_t i = 0; i < numSubSamples; i++) {
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err = parcel->writeUint32(subSamples[i].mNumBytesOfClearData);
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if (err != OK) {
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return err;
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}
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err = parcel->writeUint32(subSamples[i].mNumBytesOfEncryptedData);
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if (err != OK) {
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return err;
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}
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}
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err = parcel->writeStrongBinder(IInterface::asBinder(srcMem));
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if (err != OK) {
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return err;
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}
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err = parcel->writeInt32(srcOffset);
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if (err != OK) {
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return err;
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}
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if (dstType == kDestinationTypeNativeHandle) {
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parcel->writeNativeHandle(static_cast<native_handle_t *>(dstPtr));
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}
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err = parcel->writeInt32(dstOffset);
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if (err != OK) {
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return err;
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}
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return OK;
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}
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} // namespace MediaDescrambler
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} // namespace media
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} // namespace android
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