1/*
2 * Copyright (C) 2011 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 DUMMY_AUDIOSOURCE_H_
18#define DUMMY_AUDIOSOURCE_H_
19
20#include <media/stagefright/MediaSource.h>
21
22
23namespace android {
24
25class MetaData;
26struct MediaBufferGroup;
27
28struct DummyAudioSource : public MediaSource {
29
30public:
31    static sp<DummyAudioSource> Create(
32                int32_t samplingRate, int32_t channelCount,
33                int64_t frameDurationUs, int64_t audioDurationUs);
34
35    virtual status_t start(MetaData *params = NULL);
36    virtual status_t stop();
37    virtual sp<MetaData> getFormat();
38
39    virtual status_t read(
40                MediaBuffer **buffer,
41                const MediaSource::ReadOptions *options = NULL);
42
43    void setDuration(int64_t audioDurationUs);
44
45protected:
46    virtual ~DummyAudioSource();
47
48private:
49    int32_t mSamplingRate;
50    int32_t mChannelCount;
51    int64_t mFrameDurationUs;
52    int32_t mNumberOfSamplePerFrame;
53    int64_t mAudioDurationUs;
54    int64_t mTimeStampUs;
55    Mutex mLock;
56
57    MediaBufferGroup *mBufferGroup;
58
59    DummyAudioSource(
60            int32_t samplingRate, int32_t channelCount,
61            int64_t frameDurationUs, int64_t audioDurationUs);
62
63    // Don't call me
64    DummyAudioSource(const DummyAudioSource &);
65    DummyAudioSource &operator=(const DummyAudioSource &);
66
67};
68
69}//namespace android
70
71
72#endif //DUMMY_AUDIOSOURCE_H_
73
74