1 /* 2 * Copyright (C) 2009 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 #ifndef STREAM_SOURCE_H_ 18 19 #define STREAM_SOURCE_H_ 20 21 #include <stdio.h> 22 23 #include <core/SkStream.h> 24 #include <media/stagefright/DataSource.h> 25 #include <media/stagefright/MediaErrors.h> 26 #include <utils/threads.h> 27 28 namespace android { 29 30 class StreamSource : public DataSource { 31 public: 32 // Pass the ownership of SkStream to StreamSource. 33 StreamSource(SkStream *SkStream); 34 virtual status_t initCheck() const; 35 virtual ssize_t readAt(off_t offset, void *data, size_t size); 36 virtual status_t getSize(off_t *size); 37 38 protected: 39 virtual ~StreamSource(); 40 41 private: 42 SkStream *mStream; 43 size_t mSize; 44 Mutex mLock; 45 46 StreamSource(const StreamSource &); 47 StreamSource &operator=(const StreamSource &); 48 }; 49 50 } // namespace android 51 52 #endif // STREAM_SOURCE_H_ 53
