| /* |
| * Copyright 2015 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 "IDataSource" |
| #include <utils/Log.h> |
| #include <utils/Timers.h> |
| |
| #include <media/IDataSource.h> |
| |
| #include <binder/IMemory.h> |
| #include <binder/Parcel.h> |
| #include <media/stagefright/foundation/ADebug.h> |
| |
| namespace android { |
| |
| enum { |
| GET_IMEMORY = IBinder::FIRST_CALL_TRANSACTION, |
| READ_AT, |
| GET_SIZE, |
| CLOSE, |
| }; |
| |
| struct BpDataSource : public BpInterface<IDataSource> { |
| BpDataSource(const sp<IBinder>& impl) : BpInterface<IDataSource>(impl) {} |
| |
| virtual sp<IMemory> getIMemory() { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDataSource::getInterfaceDescriptor()); |
| remote()->transact(GET_IMEMORY, data, &reply); |
| sp<IBinder> binder = reply.readStrongBinder(); |
| return interface_cast<IMemory>(binder); |
| } |
| |
| virtual ssize_t readAt(off64_t offset, size_t size) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDataSource::getInterfaceDescriptor()); |
| data.writeInt64(offset); |
| data.writeInt64(size); |
| remote()->transact(READ_AT, data, &reply); |
| return reply.readInt64(); |
| } |
| |
| virtual status_t getSize(off64_t* size) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDataSource::getInterfaceDescriptor()); |
| remote()->transact(GET_SIZE, data, &reply); |
| status_t err = reply.readInt32(); |
| *size = reply.readInt64(); |
| return err; |
| } |
| |
| virtual void close() { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDataSource::getInterfaceDescriptor()); |
| remote()->transact(CLOSE, data, &reply); |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(DataSource, "android.media.IDataSource"); |
| |
| status_t BnDataSource::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { |
| switch (code) { |
| case GET_IMEMORY: { |
| CHECK_INTERFACE(IDataSource, data, reply); |
| reply->writeStrongBinder(IInterface::asBinder(getIMemory())); |
| return NO_ERROR; |
| } break; |
| case READ_AT: { |
| CHECK_INTERFACE(IDataSource, data, reply); |
| off64_t offset = (off64_t) data.readInt64(); |
| size_t size = (size_t) data.readInt64(); |
| reply->writeInt64(readAt(offset, size)); |
| return NO_ERROR; |
| } break; |
| case GET_SIZE: { |
| CHECK_INTERFACE(IDataSource, data, reply); |
| off64_t size; |
| status_t err = getSize(&size); |
| reply->writeInt32(err); |
| reply->writeInt64(size); |
| return NO_ERROR; |
| } break; |
| case CLOSE: { |
| CHECK_INTERFACE(IDataSource, data, reply); |
| close(); |
| return NO_ERROR; |
| } break; |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| } // namespace android |