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/*
* 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_
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