stagefrightrecorder_感染stagefright怎么办_stagefright是什么

Android MediaRecorder 小结

调用顺序

MediaRecorder.java

+- android_media_MediaRecorder.cpp

+- MediaRecorder.cpp

+- MediaPlayerService.cpp

+- MediaRecorderClient.cpp

+- StagefrightRecorder.cpp

重要的类

* MediaWriter

+- MPEG4Writer

* MediaSource

+- CameraSource

数据流向

Camera

|

| CameraListener#postDataTimestamp(raw frame)

|

\ /

CameraSource(MediaSource)

|

| read(raw frame)

|

\ /

OMXCodec Encoder(MediaSource)

|

| read(encoded frame)

|

\ /

MPEG4Writer(MediaWriter)

|

|

|

\ /

MP4 File

CameraSource 帧队列

List<sp<IMemory> > mFrames; // 帧

List<int64_t> mFrameTimes; // 帖的相对时间戳

read 消费者线程

dataCallbackTimestamp 生产者线程

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