NuPlayerSource.h revision 2bfdd428c56c7524d1a11979f200a1762866032d 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef NUPLAYER_SOURCE_H_
18
19#define NUPLAYER_SOURCE_H_
20
21#include "NuPlayer.h"
22
23namespace android {
24
25struct ABuffer;
26
27struct NuPlayer::Source : public RefBase {
28    Source() {}
29
30    virtual void start() = 0;
31    virtual void stop() {}
32
33    // Returns OK iff more data was available,
34    // an error or ERROR_END_OF_STREAM if not.
35    virtual status_t feedMoreTSData() = 0;
36
37    virtual sp<MetaData> getFormat(bool audio) = 0;
38
39    virtual status_t dequeueAccessUnit(
40            bool audio, sp<ABuffer> *accessUnit) = 0;
41
42    virtual status_t getDuration(int64_t *durationUs) {
43        return INVALID_OPERATION;
44    }
45
46    virtual status_t seekTo(int64_t seekTimeUs) {
47        return INVALID_OPERATION;
48    }
49
50    virtual bool isSeekable() {
51        return false;
52    }
53
54protected:
55    virtual ~Source() {}
56
57private:
58    DISALLOW_EVIL_CONSTRUCTORS(Source);
59};
60
61}  // namespace android
62
63#endif  // NUPLAYER_SOURCE_H_
64
65