NuPlayerSource.h revision b7c8e91880463ff4981e3e53e98e45d68e2fe374 
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    enum Flags {
29        FLAG_SEEKABLE           = 1,
30        FLAG_DYNAMIC_DURATION   = 2,
31    };
32
33    Source() {}
34
35    virtual void start() = 0;
36    virtual void stop() {}
37
38    // Returns OK iff more data was available,
39    // an error or ERROR_END_OF_STREAM if not.
40    virtual status_t feedMoreTSData() = 0;
41
42    virtual sp<AMessage> getFormat(bool audio);
43
44    virtual status_t dequeueAccessUnit(
45            bool audio, sp<ABuffer> *accessUnit) = 0;
46
47    virtual status_t getDuration(int64_t *durationUs) {
48        return INVALID_OPERATION;
49    }
50
51    virtual status_t seekTo(int64_t seekTimeUs) {
52        return INVALID_OPERATION;
53    }
54
55    virtual uint32_t flags() const = 0;
56
57protected:
58    virtual ~Source() {}
59
60    virtual sp<MetaData> getFormatMeta(bool audio) { return NULL; }
61
62private:
63    DISALLOW_EVIL_CONSTRUCTORS(Source);
64};
65
66}  // namespace android
67
68#endif  // NUPLAYER_SOURCE_H_
69
70