Application of JNI-layer camera in Android 2.1

As a reference for implementing image recognition at the Java layer. We recommend that you use the JNI layer to extract data.

 

-- Leon

 

 

Http://blog.csdn.net/chenji001/archive/2010/08/25/5836685.aspx

In Android, if you want to process preivew data (such as face tracking), the callback function at the Java layer will cause frequent memory application and copy. Even if you use the latest setpreviewcallbackwithbuffer function, memory copy across the JNI layer cannot be escaped. In addition, ourAlgorithmIt is often C, so it is more troublesome to have another layer of JNI.

Therefore, the good method is to use the camera object and cameralistener (inheritance class) directly under JNI. Write a Java-layer camera for the final application.Program.

Difficult, just record: