VideoEditorAudioPlayer.h revision b5c7784c96a606890eb8a8b560153ef4a5d1a0d9 
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 VE_AUDIO_PLAYER_H_
18
19#define VE_AUDIO_PLAYER_H_
20
21#include <media/MediaPlayerInterface.h>
22#include <media/stagefright/MediaBuffer.h>
23#include <media/stagefright/TimeSource.h>
24#include <utils/threads.h>
25#include "M4xVSS_API.h"
26#include "VideoEditorMain.h"
27#include "M4OSA_FileReader.h"
28#include "VideoEditorBGAudioProcessing.h"
29#include "AudioPlayerBase.h"
30#include "PreviewPlayerBase.h"
31
32namespace android {
33
34class MediaSource;
35class AudioTrack;
36class PreviewPlayer;
37
38
39class VideoEditorAudioPlayer : public AudioPlayerBase {
40public:
41    enum {
42        REACHED_EOS,
43        SEEK_COMPLETE
44    };
45
46    VideoEditorAudioPlayer(const sp<MediaPlayerBase::AudioSink> &audioSink,
47        PreviewPlayerBase *audioObserver = NULL);
48
49    virtual ~VideoEditorAudioPlayer();
50
51    status_t start(bool sourceAlreadyStarted = false);
52    void resume();
53
54    void setAudioMixSettings(M4xVSS_AudioMixingSettings* pAudioMixSettings);
55    void setAudioMixPCMFileHandle(M4OSA_Context pBGAudioPCMFileHandle);
56    void setAudioMixStoryBoardSkimTimeStamp(
57        M4OSA_UInt32 pBGAudioStoryBoardSkimTimeStamp,
58        M4OSA_UInt32 pBGAudioCurrentMediaBeginCutTS,
59        M4OSA_UInt32 pBGAudioCurrentMediaVolumeVal);
60
61    void setObserver(PreviewPlayerBase *observer);
62    void setSource(const sp<MediaSource> &source);
63    sp<MediaSource> getSource();
64
65    bool isStarted();
66private:
67
68    M4xVSS_AudioMixingSettings *mAudioMixSettings;
69    VideoEditorBGAudioProcessing *mAudioProcess;
70
71    M4OSA_Context mBGAudioPCMFileHandle;
72    int64_t mBGAudioPCMFileLength;
73    int64_t mBGAudioPCMFileTrimmedLength;
74    int64_t mBGAudioPCMFileDuration;
75    int64_t mBGAudioPCMFileSeekPoint;
76    int64_t mBGAudioPCMFileOriginalSeekPoint;
77    int64_t mBGAudioStoryBoardSkimTimeStamp;
78    int64_t mBGAudioStoryBoardCurrentMediaBeginCutTS;
79    int64_t mBGAudioStoryBoardCurrentMediaVolumeVal;
80
81    size_t fillBuffer(void *data, size_t size);
82
83    void reset();
84    void setPrimaryTrackVolume(M4OSA_Int16 *data, M4OSA_UInt32 size, M4OSA_Float volLevel);
85
86    static size_t AudioSinkCallback(
87            MediaPlayerBase::AudioSink *audioSink,
88            void *data, size_t size, void *me);
89
90    VideoEditorAudioPlayer(const VideoEditorAudioPlayer &);
91    VideoEditorAudioPlayer &operator=(const VideoEditorAudioPlayer &);
92};
93
94}  // namespace android
95
96#endif  // VE_AUDIO_PLAYER_H_
97