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 NUPLAYER_RENDERER_H_ 18 19 #define NUPLAYER_RENDERER_H_ 20 21 #include "NuPlayer.h" 22 23 namespace android { 24 25 struct ABuffer; 26 27 struct NuPlayer::Renderer : public AHandler { 28 enum Flags { 29 FLAG_REAL_TIME = 1, 30 }; 31 Renderer(const sp<MediaPlayerBase::AudioSink> &sink, 32 const sp<AMessage> ¬ify, 33 uint32_t flags = 0); 34 35 void queueBuffer( 36 bool audio, 37 const sp<ABuffer> &buffer, 38 const sp<AMessage> ¬ifyConsumed); 39 40 void queueEOS(bool audio, status_t finalResult); 41 42 void flush(bool audio); 43 44 void signalTimeDiscontinuity(); 45 46 void signalAudioSinkChanged(); 47 48 void pause(); 49 void resume(); 50 51 enum { 52 kWhatEOS = 'eos ', 53 kWhatFlushComplete = 'fluC', 54 kWhatPosition = 'posi', 55 kWhatVideoRenderingStart = 'vdrd', 56 }; 57 58 protected: 59 virtual ~Renderer(); 60 61 virtual void onMessageReceived(const sp<AMessage> &msg); 62 63 private: 64 enum { 65 kWhatDrainAudioQueue = 'draA', 66 kWhatDrainVideoQueue = 'draV', 67 kWhatQueueBuffer = 'queB', 68 kWhatQueueEOS = 'qEOS', 69 kWhatFlush = 'flus', 70 kWhatAudioSinkChanged = 'auSC', 71 kWhatPause = 'paus', 72 kWhatResume = 'resm', 73 }; 74 75 struct QueueEntry { 76 sp<ABuffer> mBuffer; 77 sp<AMessage> mNotifyConsumed; 78 size_t mOffset; 79 status_t mFinalResult; 80 }; 81 82 static const int64_t kMinPositionUpdateDelayUs; 83 84 sp<MediaPlayerBase::AudioSink> mAudioSink; 85 sp<AMessage> mNotify; 86 uint32_t mFlags; 87 List<QueueEntry> mAudioQueue; 88 List<QueueEntry> mVideoQueue; 89 uint32_t mNumFramesWritten; 90 91 bool mDrainAudioQueuePending; 92 bool mDrainVideoQueuePending; 93 int32_t mAudioQueueGeneration; 94 int32_t mVideoQueueGeneration; 95 96 int64_t mAnchorTimeMediaUs; 97 int64_t mAnchorTimeRealUs; 98 99 Mutex mFlushLock; // protects the following 2 member vars. 100 bool mFlushingAudio; 101 bool mFlushingVideo; 102 103 bool mHasAudio; 104 bool mHasVideo; 105 bool mSyncQueues; 106 107 bool mPaused; 108 bool mVideoRenderingStarted; 109 110 int64_t mLastPositionUpdateUs; 111 int64_t mVideoLateByUs; 112 113 bool onDrainAudioQueue(); 114 void postDrainAudioQueue(int64_t delayUs = 0); 115 116 void onDrainVideoQueue(); 117 void postDrainVideoQueue(); 118 119 void onQueueBuffer(const sp<AMessage> &msg); 120 void onQueueEOS(const sp<AMessage> &msg); 121 void onFlush(const sp<AMessage> &msg); 122 void onAudioSinkChanged(); 123 void onPause(); 124 void onResume(); 125 126 void notifyEOS(bool audio, status_t finalResult); 127 void notifyFlushComplete(bool audio); 128 void notifyPosition(); 129 void notifyVideoLateBy(int64_t lateByUs); 130 void notifyVideoRenderingStart(); 131 132 void flushQueue(List<QueueEntry> *queue); 133 bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg); 134 void syncQueuesDone(); 135 136 DISALLOW_EVIL_CONSTRUCTORS(Renderer); 137 }; 138 139 } // namespace android 140 141 #endif // NUPLAYER_RENDERER_H_ 142