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/*
* 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_
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