| /* |
| * Copyright (C) 2011 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. |
| */ |
| |
| #ifndef TIMED_TEXT_PARSER_H_ |
| |
| #define TIMED_TEXT_PARSER_H_ |
| |
| #include <media/MediaPlayerInterface.h> |
| #include <media/stagefright/foundation/ABase.h> |
| #include <media/stagefright/foundation/AString.h> |
| #include <media/stagefright/MediaSource.h> |
| |
| namespace android { |
| |
| class DataSource; |
| |
| class TimedTextParser : public RefBase { |
| public: |
| TimedTextParser(); |
| virtual ~TimedTextParser(); |
| |
| enum FileType { |
| OUT_OF_BAND_FILE_SRT = 1, |
| }; |
| |
| status_t getText(AString *text, int64_t *startTimeUs, int64_t *endTimeUs, |
| const MediaSource::ReadOptions *options = NULL); |
| status_t init(const sp<DataSource> &dataSource, FileType fileType); |
| void reset(); |
| |
| private: |
| Mutex mLock; |
| |
| sp<DataSource> mDataSource; |
| off64_t mOffset; |
| |
| struct TextInfo { |
| int64_t endTimeUs; |
| // the offset of the text in the original file |
| off64_t offset; |
| int textLen; |
| }; |
| |
| int mIndex; |
| FileType mFileType; |
| |
| // the key indicated the start time of the text |
| KeyedVector<int64_t, TextInfo> mTextVector; |
| |
| status_t getNextInSrtFileFormat( |
| off64_t *offset, int64_t *startTimeUs, TextInfo *info); |
| status_t readNextLine(off64_t *offset, AString *data); |
| |
| status_t scanFile(); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(TimedTextParser); |
| }; |
| |
| } // namespace android |
| |
| #endif // TIMED_TEXT_PARSER_H_ |
| |