AudioPlayer.h revision bfa6b2d7a1be1832ac40ed90aece1834f720b5c6
1/* 2 * Copyright (C) 2009 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 AUDIO_PLAYER_H_ 18 19#define 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 26namespace android { 27 28class MediaSource; 29class AudioTrack; 30 31class AudioPlayer : public TimeSource { 32public: 33 enum { 34 REACHED_EOS, 35 SEEK_COMPLETE 36 }; 37 38 AudioPlayer(const sp<MediaPlayerBase::AudioSink> &audioSink); 39 virtual ~AudioPlayer(); 40 41 // Caller retains ownership of "source". 42 void setSource(const sp<MediaSource> &source); 43 44 void setListenerCallback( 45 void (*notify)(void *cookie, int what), void *cookie); 46 47 // Return time in us. 48 virtual int64_t getRealTimeUs(); 49 50 void start(); 51 52 void pause(); 53 void resume(); 54 55 void stop(); 56 57 // Returns the timestamp of the last buffer played (in us). 58 int64_t getMediaTimeUs(); 59 60 // Returns true iff a mapping is established, i.e. the AudioPlayer 61 // has played at least one frame of audio. 62 bool getMediaTimeMapping(int64_t *realtime_us, int64_t *mediatime_us); 63 64 status_t seekTo(int64_t time_us); 65 66private: 67 sp<MediaSource> mSource; 68 AudioTrack *mAudioTrack; 69 70 MediaBuffer *mInputBuffer; 71 72 int mSampleRate; 73 int64_t mLatencyUs; 74 size_t mFrameSize; 75 76 Mutex mLock; 77 int64_t mNumFramesPlayed; 78 79 int64_t mPositionTimeMediaUs; 80 int64_t mPositionTimeRealUs; 81 82 bool mSeeking; 83 int64_t mSeekTimeUs; 84 85 bool mStarted; 86 87 void (*mListenerCallback)(void *cookie, int what); 88 void *mListenerCookie; 89 90 sp<MediaPlayerBase::AudioSink> mAudioSink; 91 92 static void AudioCallback(int event, void *user, void *info); 93 void AudioCallback(int event, void *info); 94 95 static void AudioSinkCallback( 96 MediaPlayerBase::AudioSink *audioSink, 97 void *data, size_t size, void *me); 98 99 void fillBuffer(void *data, size_t size); 100 101 int64_t getRealTimeUsLocked() const; 102 103 AudioPlayer(const AudioPlayer &); 104 AudioPlayer &operator=(const AudioPlayer &); 105}; 106 107} // namespace android 108 109#endif // AUDIO_PLAYER_H_ 110