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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 NUPLAYER_SOURCE_H_
#define NUPLAYER_SOURCE_H_
#include "NuPlayer.h"
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/MetaData.h>
#include <media/mediaplayer.h>
#include <utils/Vector.h>
namespace android {
struct ABuffer;
struct MetaData;
struct MediaBuffer;
struct NuPlayer::Source : public AHandler {
enum Flags {
FLAG_CAN_PAUSE = 1,
FLAG_CAN_SEEK_BACKWARD = 2, // the "10 sec back button"
FLAG_CAN_SEEK_FORWARD = 4, // the "10 sec forward button"
FLAG_CAN_SEEK = 8, // the "seek bar"
FLAG_DYNAMIC_DURATION = 16,
FLAG_SECURE = 32,
};
enum {
kWhatPrepared,
kWhatFlagsChanged,
kWhatVideoSizeChanged,
kWhatBufferingUpdate,
kWhatBufferingStart,
kWhatBufferingEnd,
kWhatSubtitleData,
kWhatTimedTextData,
kWhatQueueDecoderShutdown,
kWhatDrmNoLicense,
};
// The provides message is used to notify the player about various
// events.
Source(const sp<AMessage> ¬ify)
: mNotify(notify) {
}
virtual void prepareAsync() = 0;
virtual void start() = 0;
virtual void stop() {}
virtual void pause() {}
virtual void resume() {}
// Returns OK iff more data was available,
// an error or ERROR_END_OF_STREAM if not.
virtual status_t feedMoreTSData() = 0;
virtual sp<AMessage> getFormat(bool audio);
virtual sp<MetaData> getFormatMeta(bool /* audio */) { return NULL; }
virtual status_t dequeueAccessUnit(
bool audio, sp<ABuffer> *accessUnit) = 0;
virtual status_t getDuration(int64_t * /* durationUs */) {
return INVALID_OPERATION;
}
virtual size_t getTrackCount() const {
return 0;
}
virtual sp<AMessage> getTrackInfo(size_t /* trackIndex */) const {
return NULL;
}
virtual ssize_t getSelectedTrack(media_track_type /* type */) const {
return INVALID_OPERATION;
}
virtual status_t selectTrack(size_t /* trackIndex */, bool /* select */) {
return INVALID_OPERATION;
}
virtual status_t seekTo(int64_t /* seekTimeUs */) {
return INVALID_OPERATION;
}
virtual status_t setBuffers(bool /* audio */, Vector<MediaBuffer *> &/* buffers */) {
return INVALID_OPERATION;
}
virtual bool isRealTime() const {
return false;
}
protected:
virtual ~Source() {}
virtual void onMessageReceived(const sp<AMessage> &msg);
sp<AMessage> dupNotify() const { return mNotify->dup(); }
void notifyFlagsChanged(uint32_t flags);
void notifyVideoSizeChanged(const sp<AMessage> &format = NULL);
void notifyPrepared(status_t err = OK);
private:
sp<AMessage> mNotify;
DISALLOW_EVIL_CONSTRUCTORS(Source);
};
} // namespace android
#endif // NUPLAYER_SOURCE_H_
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