AnotherPacketSource.h revision 53df1a460bcfdd129ca2bc416dee2009e35c042e 
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 ANOTHER_PACKET_SOURCE_H_
18
19#define ANOTHER_PACKET_SOURCE_H_
20
21#include <media/stagefright/foundation/ABase.h>
22#include <media/stagefright/MediaSource.h>
23#include <utils/threads.h>
24#include <utils/List.h>
25
26namespace android {
27
28struct ABuffer;
29
30struct AnotherPacketSource : public MediaSource {
31    AnotherPacketSource(const sp<MetaData> &meta);
32
33    virtual status_t start(MetaData *params = NULL);
34    virtual status_t stop();
35    virtual sp<MetaData> getFormat();
36
37    virtual status_t read(
38            MediaBuffer **buffer, const ReadOptions *options = NULL);
39
40    bool hasBufferAvailable(status_t *finalResult);
41
42    status_t nextBufferTime(int64_t *timeUs);
43
44    void queueAccessUnit(const sp<ABuffer> &buffer);
45    void queueDiscontinuity(bool formatChange);
46    void signalEOS(status_t result);
47
48    void clear();
49
50    status_t dequeueAccessUnit(sp<ABuffer> *buffer);
51
52protected:
53    virtual ~AnotherPacketSource();
54
55private:
56    Mutex mLock;
57    Condition mCondition;
58
59    sp<MetaData> mFormat;
60    List<sp<ABuffer> > mBuffers;
61    status_t mEOSResult;
62
63    DISALLOW_EVIL_CONSTRUCTORS(AnotherPacketSource);
64};
65
66
67}  // namespace android
68
69#endif  // ANOTHER_PACKET_SOURCE_H_
70