Camera2MediaCodec

=================================

1.use async mediaCodec
2.use camera2
3.use zbar to scan barcode

Gradle dependency

//zbar
    compile 'com.yanzhenjie.zbar:zbar:1.0.0'
    compile 'com.yanzhenjie.zbar:camera:1.0.0'
    compile 'com.yanzhenjie:permission:1.0.7'
//draw the view if you want
    compile 'com.github.ChillingVan:android-openGL-canvas:v1.2.2.3'
//event bus 
    compile 'org.greenrobot:eventbus:3.1.1'
  

Usage

*camera2

first: init camera2
   
    if(usingFrontCamera){
            FrontCamera frontCamera = new FrontCamera();
            frontCamera.buildCamera2();// frontCamera.buildCamera1();

        }else{
            BackCamera backCamera = new BackCamera();
            backCamera.buildCamera2();// backCamera.buildCamera1();
        }
        
second: startCamera when surfaceTexture is available or onSet
  

*zbar detect resolution set

can set resoluition to zbar library
if your device support 1920*1080 .  e.g STREAMING_RESOLUTION = 1920

*zbar *Add interface callback code

• IYuvDataCallback.java

*Add ZbarProcessorRunnable Code

• ZbarProcessorRunnable.java

*Add EventBus bean

• ZbarResultEventBus.java

1. init ZbarProcessorRunnable
2. put the byte[] data into ZbarProcessorRunnable
3. register EventBus for zbar result 
 

• init zbarProcessorRunnable

  if(zbarProcessorRunnable == null && imageWidth >0 && imageHeight >0 ){
            zbarProcessorRunnable = new ZbarProcessorRunnable(
                    imageWidth,//image width 
                    imageHeight,
                    previewSize.getWidth(),//camera2 preview width 
                    previewSize.getHeight()
            );
        }

• set data to zbar

  if(zbarProcessorRunnable!=null) {
       zbarProcessorRunnable.setNextFrame(data);
   }  

Preview



• draw the canvas on preview
• android-openGL-canvas (https://github.com/ChillingVan/android-openGL-canvas)