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/*
* Copyright (C) 2010 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 ANOTHER_PACKET_SOURCE_H_
#define ANOTHER_PACKET_SOURCE_H_
#include <media/stagefright/foundation/ABase.h>
#include <media/stagefright/MediaSource.h>
#include <utils/threads.h>
#include <utils/List.h>
#include "ATSParser.h"
namespace android {
struct ABuffer;
struct AnotherPacketSource : public MediaSource {
AnotherPacketSource(const sp<MetaData> &meta);
void setFormat(const sp<MetaData> &meta);
virtual status_t start(MetaData *params = NULL);
virtual status_t stop();
virtual sp<MetaData> getFormat();
virtual status_t read(
MediaBuffer **buffer, const ReadOptions *options = NULL);
void clear();
// Returns true if we have any packets including discontinuities
bool hasBufferAvailable(status_t *finalResult);
// Returns true if we have packets that's not discontinuities
bool hasDataBufferAvailable(status_t *finalResult);
// Returns the difference between the last and the first queued
// presentation timestamps since the last discontinuity (if any).
int64_t getBufferedDurationUs(status_t *finalResult);
int64_t getEstimatedDurationUs();
status_t nextBufferTime(int64_t *timeUs);
void queueAccessUnit(const sp<ABuffer> &buffer);
void queueDiscontinuity(
ATSParser::DiscontinuityType type,
const sp<AMessage> &extra,
bool discard);
void signalEOS(status_t result);
status_t dequeueAccessUnit(sp<ABuffer> *buffer);
bool isFinished(int64_t duration) const;
sp<AMessage> getLatestEnqueuedMeta();
sp<AMessage> getLatestDequeuedMeta();
protected:
virtual ~AnotherPacketSource();
private:
Mutex mLock;
Condition mCondition;
bool mIsAudio;
bool mIsVideo;
sp<MetaData> mFormat;
int64_t mLastQueuedTimeUs;
List<sp<ABuffer> > mBuffers;
status_t mEOSResult;
sp<AMessage> mLatestEnqueuedMeta;
sp<AMessage> mLatestDequeuedMeta;
size_t mQueuedDiscontinuityCount;
bool wasFormatChange(int32_t discontinuityType) const;
int64_t getBufferedDurationUs_l(status_t *finalResult);
DISALLOW_EVIL_CONSTRUCTORS(AnotherPacketSource);
};
} // namespace android
#endif // ANOTHER_PACKET_SOURCE_H_
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