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 #define VE_AUDIO_PLAYER_H_ 19 20 #include <media/MediaPlayerInterface.h> 21 #include <media/stagefright/MediaBuffer.h> 22 #include <media/stagefright/TimeSource.h> 23 #include <utils/threads.h> 24 25 #include "M4xVSS_API.h" 26 #include "VideoEditorMain.h" 27 #include "M4OSA_FileReader.h" 28 #include "VideoEditorBGAudioProcessing.h" 29 30 31 namespace android { 32 33 class MediaSource; 34 class AudioTrack; 35 class PreviewPlayer; 36 37 class VideoEditorAudioPlayer : public TimeSource { 38 public: 39 enum { 40 REACHED_EOS, 41 SEEK_COMPLETE 42 }; 43 44 VideoEditorAudioPlayer(const sp<MediaPlayerBase::AudioSink> &audioSink, 45 PreviewPlayer *audioObserver = NULL); 46 47 ~VideoEditorAudioPlayer(); 48 49 // Return time in us. 50 int64_t getRealTimeUs(); 51 52 // Returns the timestamp of the last buffer played (in us). 53 int64_t getMediaTimeUs(); 54 55 // Returns true iff a mapping is established, i.e. the AudioPlayerBase 56 // has played at least one frame of audio. 57 bool getMediaTimeMapping(int64_t *realtime_us, int64_t *mediatime_us); 58 59 status_t start(bool sourceAlreadyStarted = false); 60 void pause(bool playPendingSamples = false); 61 void resume(); 62 status_t seekTo(int64_t time_us); 63 bool isSeeking(); 64 bool reachedEOS(status_t *finalStatus); 65 66 void setAudioMixSettings(M4xVSS_AudioMixingSettings* pAudioMixSettings); 67 void setAudioMixPCMFileHandle(M4OSA_Context pBGAudioPCMFileHandle); 68 void setAudioMixStoryBoardSkimTimeStamp( 69 M4OSA_UInt32 pBGAudioStoryBoardSkimTimeStamp, 70 M4OSA_UInt32 pBGAudioCurrentMediaBeginCutTS, 71 M4OSA_UInt32 pBGAudioCurrentMediaVolumeVal); 72 73 void setObserver(PreviewPlayer *observer); 74 void setSource(const sp<MediaSource> &source); 75 sp<MediaSource> getSource(); 76 77 bool isStarted(); 78 private: 79 80 M4xVSS_AudioMixingSettings *mAudioMixSettings; 81 VideoEditorBGAudioProcessing *mAudioProcess; 82 83 M4OSA_Context mBGAudioPCMFileHandle; 84 int64_t mBGAudioPCMFileLength; 85 int64_t mBGAudioPCMFileTrimmedLength; 86 int64_t mBGAudioPCMFileDuration; 87 int64_t mBGAudioPCMFileSeekPoint; 88 int64_t mBGAudioPCMFileOriginalSeekPoint; 89 int64_t mBGAudioStoryBoardSkimTimeStamp; 90 int64_t mBGAudioStoryBoardCurrentMediaBeginCutTS; 91 int64_t mBGAudioStoryBoardCurrentMediaVolumeVal; 92 93 sp<MediaSource> mSource; 94 AudioTrack *mAudioTrack; 95 96 MediaBuffer *mInputBuffer; 97 98 int mSampleRate; 99 int64_t mLatencyUs; 100 size_t mFrameSize; 101 102 Mutex mLock; 103 int64_t mNumFramesPlayed; 104 105 int64_t mPositionTimeMediaUs; 106 int64_t mPositionTimeRealUs; 107 108 bool mSeeking; 109 bool mReachedEOS; 110 status_t mFinalStatus; 111 int64_t mSeekTimeUs; 112 113 bool mStarted; 114 115 bool mIsFirstBuffer; 116 status_t mFirstBufferResult; 117 MediaBuffer *mFirstBuffer; 118 119 sp<MediaPlayerBase::AudioSink> mAudioSink; 120 PreviewPlayer *mObserver; 121 122 static void AudioCallback(int event, void *user, void *info); 123 void AudioCallback(int event, void *info); 124 size_t fillBuffer(void *data, size_t size); 125 static size_t AudioSinkCallback( 126 MediaPlayerBase::AudioSink *audioSink, 127 void *data, size_t size, void *me); 128 129 void reset(); 130 void clear(); 131 int64_t getRealTimeUs_l(); 132 void setPrimaryTrackVolume( 133 M4OSA_Int16 *data, M4OSA_UInt32 size, M4OSA_Float volLevel); 134 135 VideoEditorAudioPlayer(const VideoEditorAudioPlayer &); 136 VideoEditorAudioPlayer &operator=(const VideoEditorAudioPlayer &); 137 }; 138 139 } // namespace android 140 141 #endif // VE_AUDIO_PLAYER_H_ 142