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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_DRIVER_H_
#define TIMED_TEXT_DRIVER_H_
#include <media/stagefright/foundation/ABase.h> // for DISALLOW_* macro
#include <utils/Errors.h> // for status_t
#include <utils/RefBase.h>
#include <utils/threads.h>
namespace android {
struct ALooper;
struct IMediaHTTPService;
class MediaPlayerBase;
class MediaSource;
class Parcel;
class TimedTextPlayer;
class TimedTextSource;
class DataSource;
class TimedTextDriver {
public:
TimedTextDriver(
const wp<MediaPlayerBase> &listener,
const sp<IMediaHTTPService> &httpService);
~TimedTextDriver();
status_t start();
status_t pause();
status_t selectTrack(size_t index);
status_t unselectTrack(size_t index);
status_t seekToAsync(int64_t timeUs);
status_t addInBandTextSource(
size_t trackIndex, const sp<MediaSource>& source);
status_t addOutOfBandTextSource(
size_t trackIndex, const char *uri, const char *mimeType);
// Caller owns the file desriptor and caller is responsible for closing it.
status_t addOutOfBandTextSource(
size_t trackIndex, int fd, off64_t offset,
off64_t length, const char *mimeType);
void getExternalTrackInfo(Parcel *parcel);
size_t countExternalTracks() const;
private:
Mutex mLock;
enum State {
UNINITIALIZED,
PREPARED,
PLAYING,
PAUSED,
};
enum TextSourceType {
TEXT_SOURCE_TYPE_IN_BAND = 0,
TEXT_SOURCE_TYPE_OUT_OF_BAND,
};
sp<ALooper> mLooper;
sp<TimedTextPlayer> mPlayer;
wp<MediaPlayerBase> mListener;
sp<IMediaHTTPService> mHTTPService;
// Variables to be guarded by mLock.
State mState;
size_t mCurrentTrackIndex;
KeyedVector<size_t, sp<TimedTextSource> > mTextSourceVector;
Vector<TextSourceType> mTextSourceTypeVector;
// -- End of variables to be guarded by mLock
status_t selectTrack_l(size_t index);
status_t createOutOfBandTextSource(
size_t trackIndex, const char* mimeType,
const sp<DataSource>& dataSource);
DISALLOW_EVIL_CONSTRUCTORS(TimedTextDriver);
};
} // namespace android
#endif // TIMED_TEXT_DRIVER_H_
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