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