RK平台UVC摄像头shell测试脚本

USB video class（又称为USB video device class or UVC）就是USB device class视频产品在不需要安装任何的驱动程序下即插即用，包括摄像头、数字摄影机、模拟视频转换器、电视卡及静态视频相机。

SoC : RK3288
Platform : Android 5.1

RK平台有自己的测试方法：在计算器中输入"83991906="，进入测试工程模式，选择CameraTest可以进行相
机的<open/close test>,<Take photo test>,<Switch mode test>等。

此脚本测试流程：打开-拍照-退出，并将结果存入本地。shell如下：

#!/system/bin/sh
# 拍照测试程序，监控照片是否生成,自动判断/dev/video设备是否存在

MONITOR_DIR=/mnt/sdcard/DCIM/Camera               # 照片存放目录
ACTIVITY_DIR=/mnt/sdcard/CameraActivity.txt       # 启动相机的log
PHOTO_NUMBER=/mnt/sdcard/photonumber.txt          # 拍照次数的log
DEVICE_ERR=/mnt/sdcard/CameraError.txt            # 没有识别到设备/dev/video0的log  

open_success=0
open_failed=0
open_error=0
device_err=0;
takephoto_success=0
takephoto_failed=0
PICTURE_PIRV=0
PICTURE_NEXT=0

if [ -f "CameraTestOK.txt" ];then
    rm /mnt/sdcard/*.txt
    rm /mnt/sdcard/DCIM/Camera/*.jpg
fi

# 
#       当没有产生/dev/video0或/dev/video1时，打开相机系统会弹窗提示"相机发生错误：无法连接到相机"
#       这里只记录错误的次数,当没有产生设备文件时，注意备份相关log         
#   

takephoto_function()
{
    PICTURE_PIRV=`ls -l  $MONITOR_DIR/*.jpg |grep "^-"| busybox wc -l`
    am start -n  com.android.camera2/com.android.camera.CameraActivity 
if  ps | grep com.android.camera2 ;then
        let "open_success++"
        echo "start Camera activity success number:$open_success"
        echo "[$(date +%T)] start Camera activity success number:$open_success"  >> $ACTIVITY_DIR
        sleep 3
        input tap 1910 500
        PICTURE_NEXT=`ls -l  $MONITOR_DIR/*.jpg |grep "^-"| busybox wc -l`
        if [ $PICTURE_NEXT -gt $PICTURE_PIRV ];then
            let "takephoto_success++"
            echo "Take photo success:$takephoto_success"
            echo "[$(date +%T)] Take photo success:$takephoto_success" >> $PHOTO_NUMBER
        else
            let "takephoto_failed++"
            echo "[$(date +%T)] Take photo failed:$takephoto_failed"    >>  $PHOTO_NUMBER
        fi
#       am force-stop  com.android.camera2
        PROID=`ps |grep com.android.camera2 |grep -v "grep"|busybox awk '{print $2}'`
        kill -9 $PROID
else
        let "open_failed++"
        echo "[$(date +%T)] start Camera activity failed number:$open_failed"  >> $ACTIVITY_DIR
fi  

}

while(($open_success<=1000))
do
    if ls -l /dev/video0 ;then
        takephoto_function;
    elif ls -l /dev/video1 ;then    
        let "device_err++"
        echo "[$(date +%T)] Camera device is /dev/video1"  >>  $DEVICE_ERR
        echo "[$(date +%T)] ---------- Camera device has change!!!!!!!!!!!!!!!!!!!"
        takephoto_function;
        conitue
    else
        let "open_error++"
        echo "------</dev/video0> and </dev/video1> not exist.-------"
        echo "[$(date +%T)] Camera device </dev/video0> and </dev/video1> not exist:$open_error" >> $DEVICE_ERR
        sleep 2
        conitue
    fi      

#   PROID=`ps -fe | grep com.android.camera2 | awk '{print $2}' | head -n 1`
#   kill -9 $PROID
#   am force-stop  com.android.camera2
done

PICTURE=`ls -l  $MONITOR_DIR/*.jpg |grep "^-"| busybox wc -l`
echo "----------------------------------------------------"
echo "1.total  Camera picture  number:$PICTURE"
echo "2.start Camera app success number:$open_success"
echo "3.Take photo success number:$takephoto_success"
echo "4.can not find device [/dev/video0] number:$open_error"
echo "5.find Camera device [/dev/video1] number:$device_err"
echo "----------------------------------------------------"

NOTE:
1. 需要确定系统的Camera应用包名与全路径名称，作相应的修改
2.通过adb push 到/system/bin/下，运行前su下即可。

RK平台UVC摄像头shell测试脚本

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