Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 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 MMAP_SOURCE_H_ |
| 18 | |
| 19 | #define MMAP_SOURCE_H_ |
| 20 | |
| 21 | #include <media/stagefright/DataSource.h> |
| 22 | #include <media/stagefright/MediaErrors.h> |
| 23 | |
| 24 | namespace android { |
| 25 | |
| 26 | class MmapSource : public DataSource { |
| 27 | public: |
| 28 | MmapSource(const char *filename); |
| 29 | |
| 30 | // Assumes ownership of "fd". |
| 31 | MmapSource(int fd, int64_t offset, int64_t length); |
| 32 | |
| 33 | virtual ~MmapSource(); |
| 34 | |
| 35 | status_t InitCheck() const; |
| 36 | |
| 37 | virtual ssize_t read_at(off_t offset, void *data, size_t size); |
| 38 | virtual status_t getSize(off_t *size); |
| 39 | |
| 40 | private: |
| 41 | int mFd; |
| 42 | void *mBase; |
| 43 | size_t mSize; |
| 44 | |
| 45 | MmapSource(const MmapSource &); |
| 46 | MmapSource &operator=(const MmapSource &); |
| 47 | }; |
| 48 | |
| 49 | } // namespace android |
| 50 | |
| 51 | #endif // MMAP_SOURCE_H_ |
| 52 | |