ffmpeg安装和录制linux桌面图像

• ubuntu14.04安装ffmpeg软件

apt-add-repository ppa:mc3man/trusty-media

apt-get update

apt-get install ffmpeg gstreamer0.10-ffmpeg

• 部署开始和停止录制的脚本文件

#!/bin/bash
start(){
if [ ! -d "/usr/local/.video/${HOSTNAME}" ];
then
        mkdir /usr/local/.video/${HOSTNAME}
fi
nohup ffmpeg -f x11grab   -s 1024x768  -r 1 -i :3.0 -qscale 25   /usr/local/.video/${HOSTNAME}/`date "+%H%M%S"`.avi -c:v mpeg4 -r 1 -f hls -hls_list_size 0 -hls_time 10 -qscale 25   /usr/local/.video/${HOSTNAME}/`date "+%H%M%S"`.m3u8 >/dev/null 2>&1 &
}
stop(){
for i in `ls /usr/local/.video/${HOSTNAME}/*.m3u8`
do
echo "#EXT-X-ENDLIST" >> $i
done
kill -9 `pgrep ffmpeg`
}


case $1 in
start)
        start;;
stop)
        stop;;
*)
        echo "Usage:$0 {start|stop}"
esac