1e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman/* 2e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * Copyright 2015 The Android Open Source Project 3e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * 4e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * Licensed under the Apache License, Version 2.0 (the "License"); 5e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * you may not use this file except in compliance with the License. 6e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * You may obtain a copy of the License at 7e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * 8e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * http://www.apache.org/licenses/LICENSE-2.0 9e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * 10e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * Unless required by applicable law or agreed to in writing, software 11e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * distributed under the License is distributed on an "AS IS" BASIS, 12e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * See the License for the specific language governing permissions and 14e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman * limitations under the License. 15e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman */ 16e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 17e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#ifndef ANDROID_IDATASOURCE_H 18e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#define ANDROID_IDATASOURCE_H 19e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 20e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#include <binder/IInterface.h> 21e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#include <media/stagefright/foundation/ABase.h> 22e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#include <utils/Errors.h> 23e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#include <utils/String8.h> 24e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 25e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramannamespace android { 26e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 27e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanclass IMemory; 28e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanclass DecryptHandle; 29e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 30e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman// A binder interface for implementing a stagefright DataSource remotely. 31e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanclass IDataSource : public IInterface { 32e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanpublic: 33e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman DECLARE_META_INTERFACE(DataSource); 34e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 35e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Get the memory that readAt writes into. 36e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual sp<IMemory> getIMemory() = 0; 37e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Read up to |size| bytes into the memory returned by getIMemory(). Returns 38e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // the number of bytes read, or -1 on error. |size| must not be larger than 39e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // the buffer. 40e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual ssize_t readAt(off64_t offset, size_t size) = 0; 41e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Get the size, or -1 if the size is unknown. 42e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual status_t getSize(off64_t* size) = 0; 43e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // This should be called before deleting |this|. The other methods may 44e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // return errors if they're called after calling close(). 45e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual void close() = 0; 46e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Get the flags of the source. 47e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Refer to DataSource:Flags for the definition of the flags. 48e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual uint32_t getFlags() = 0; 49e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // get a description of the source, e.g. the url or filename it is based on 50e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual String8 toString() = 0; 51e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman // Initialize DRM and return a DecryptHandle. 52e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual sp<DecryptHandle> DrmInitialization(const char *mime) = 0; 53e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 54e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanprivate: 55e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman DISALLOW_EVIL_CONSTRUCTORS(IDataSource); 56e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman}; 57e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 58e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman// ---------------------------------------------------------------------------- 59e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 60e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanclass BnDataSource : public BnInterface<IDataSource> { 61e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatramanpublic: 62e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman virtual status_t onTransact(uint32_t code, 63e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman const Parcel& data, 64e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman Parcel* reply, 65e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman uint32_t flags = 0); 66e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman}; 67e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 68e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman}; // namespace android 69e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman 70e2b43843fd12783188edd2c54188ea8d26864788Vijay Venkatraman#endif // ANDROID_IDATASOURCE_H 71