| /* |
| * Copyright (C) 2012 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_SOURCE_H_ |
| #define TIMED_TEXT_SOURCE_H_ |
| |
| #include <media/stagefright/foundation/ABase.h> // for DISALLOW_XXX macro. |
| #include <media/stagefright/MediaErrors.h> |
| #include <media/stagefright/MediaSource.h> // for MediaSource::ReadOptions |
| #include <utils/RefBase.h> |
| |
| namespace android { |
| |
| class DataSource; |
| class MetaData; |
| class Parcel; |
| |
| class TimedTextSource : public RefBase { |
| public: |
| enum FileType { |
| OUT_OF_BAND_FILE_SRT = 1, |
| OUT_OF_BAND_FILE_SMI = 2, |
| }; |
| static sp<TimedTextSource> CreateTimedTextSource( |
| const sp<MediaSource>& source); |
| static sp<TimedTextSource> CreateTimedTextSource( |
| const sp<DataSource>& source, FileType filetype); |
| TimedTextSource() {} |
| virtual status_t start() = 0; |
| virtual status_t stop() = 0; |
| // Returns subtitle parcel and its start time. |
| virtual status_t read( |
| int64_t *startTimeUs, |
| int64_t *endTimeUs, |
| Parcel *parcel, |
| const MediaSource::ReadOptions *options = NULL) = 0; |
| virtual status_t extractGlobalDescriptions(Parcel * /* parcel */) { |
| return INVALID_OPERATION; |
| } |
| virtual sp<MetaData> getFormat(); |
| |
| protected: |
| virtual ~TimedTextSource() { } |
| |
| private: |
| DISALLOW_EVIL_CONSTRUCTORS(TimedTextSource); |
| }; |
| |
| } // namespace android |
| |
| #endif // TIMED_TEXT_SOURCE_H_ |