chobit_prog pepomp4ctl - PepoLinux Wiki - PepoLinux

pepomp4ctl

pepomp4ctlとはRaspberry Piに接続したWEBカメラやModuleカメラで動画や写真を取得するちょっとしたプログラムです

 #!/bin/bash
 # licence GPLv2 ; this scripts designed by IZAMUKARERA 2013.10.12 update 2020.7.27
 # pepomp4ctl ; get video or jpeg
 # pepomp4ctl dev image pid
 #VIDEOPG=ffmpeg
 RASPICAMERA=/dev/vchiq
 RASPIVID=raspivid
 RASPISTILL=raspistill
 VIDEOPG=avconv
 if [ $# != 3 ];then
  echo  "$0 video-dev xxx.jpg|xxx.mp4 ppid"
  exit -1
 fi
 WORKDIR=/www/remote-hand/tmp
 PATH=$PATH:/usr/local/bin:/usr/local/sbin
 MP4=`echo $2 | awk 'BEGIN{FS="."};{if($2=="mp4"){printf "YES"} else {printf "NO"}}'`
 DEV=$1
 IMAGE=$2
 ppid=$3
 if [ $MP4 = "YES" ];then
   OPT="-ss 3 -s 320x240 -r 5 -vcodec mpeg4 -t 10"
 else
     OPT="-ss 3 -s 640x480"
 fi
 prog=pepomp4ctl
 pidfile=/var/run/${prog}.pid
 pprog=pepogmail4pic
 ppidfile=/var/run/${pprog}.pid
 WORKIMAGE=${WORKDIR}/${IMAGE}
 
 error(){
   [ -e ${WORKIMAGE} ] && rm -f ${WORKIMAGE}
   [ -e ${pidfile} ] && rm -f ${pidfile}
   [ -e ${ppidfile} ] && rm -f ${ppidfile}
   exit 0
 }
 trap error SIGINT SIGTERM SIGHUP SIGKILL SIGCHLD
 
 while [ -e ${pidfile} ];do
   VIDEOPGTIME=`ps ax | grep -v grep|grep ${VIDEOPG} | awk '{split($4,I,":");printf("%2d",I[2])}'`
   if [ "${VIDEOPGTIME}" -gt 10 ];then
     pid=`cat ${pidfile}`
     kill -HUP ${pid}
     pkill -HUP ${VIDEOPG}
     msleep 100
     rm -f ${pidfile}
     rm -f ${ppidfile}
   fi
 done
 while [ ! -z `pgrep ${VIDEOPG}` ];do
   TIMEOUT=`ps ax | grep -v grep|grep avconv | awk '{split($4,I,":");if (I[2] > 10){printf $1}}'`
   if [ ! -z "${TIMEOUT}" ];then
     kill -HUP ${TIMEOUT}
     msleep 100
     break
   fi
 done
 if [ -e ${DEV} ];then
   echo -n $$ >${pidfile}
   echo -n ${ppid} >${ppidfile}
   if [ $DEV != $RASPICAMERA ];then
     ${VIDEOPG} -f video4linux2 -i ${DEV} ${OPT} -y ${WORKIMAGE} >/dev/null 2>&1
   else
     if [ $MP4 != "YES" ];then
       $RASPISTILL -t 1000 -vf -hf -w 1920 -h 1080 -o ${WORKIMAGE} >/dev/null 2>&1
     else
 #      $RASPIVID -vf -hf -o - -w 640 -h 480 -t 10000 -fps 5 |${VIDEOPG} -f h264 -r 5 -i - -vcodec mpeg4 -y ${WORKIMAGE} >/dev/null 2>&1
       $RASPIVID -vf -hf -o ${WORKIMAGE}.tmp -w 640 -h 480 -t 10000 -fps 5 
       cat ${WORKIMAGE}.tmp |${VIDEOPG} -f h264 -r 5 -i - -vcodec mpeg4 -y ${WORKIMAGE} >/dev/null 2>&1
       rm ${WORKIMAGE}.tmp
     fi
   fi
   rm -f $pidfile
   rm -f ${ppidfile}
 else
   echo "Video device is not connected -> $DEV"
 fi