帮我用shell实现当rviz启动时开始自动录制rviz的画面,当rviz进程被杀死时保存录制的视频
时间: 2023-06-04 20:03:19 浏览: 173
好的,这个问题属于技术类问题,我可以回答。您可以使用一个叫做 "recordmydesktop" 的软件工具来实现自动录制rviz的画面,并且可以在rviz进程被杀死时保存录制的视频。您可以在终端输入以下命令来安装这个工具:
sudo apt-get install recordmydesktop
然后,您可以创建一个shell脚本来自动执行录制rviz画面的操作,以及在rviz进程被杀死时保存录制的视频。以下是对应的shell脚本:
```
#!/bin/bash
# Define the path to the directory where the video will be saved
VIDEO_DIR="/path/to/video/directory"
# Start recording rviz screen using recordmydesktop
recordmydesktop -o ${VIDEO_DIR}/rviz_video.ogv &
# Store the process id of recordmydesktop
RECORD_PID=$!
# Wait for rviz process to terminate
while true
do
if ! pgrep -x "rviz" > /dev/null
then
# If rviz process is terminated, stop recording and save the video
kill $RECORD_PID
recordmydesktop --stop-and-save ${VIDEO_DIR}/rviz_video.ogv
echo "Recording stopped and video saved!"
break
fi
sleep 1
done
```
将代码保存为 "start_rviz_recording.sh",然后在终端中执行以下命令来运行shell脚本:
bash /path/to/start_rviz_recording.sh
希望这个解答对您有所帮助!