vlc - Stdout to memory python -

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i wanted stream raspivid using vlc. followed below link

raspivid -o - -t 9999999 -w 1280 -h 1024 -b 500000 -fps 20|cvlc -vvv stream:///dev/stdin --sout '#rtp{sdp=rtsp://:8080/}' :demux=h264

now wanted record streamed result in vlc 

cvlc -vvv stream:///rtsp://0.0.0.0:8554/}'  --sout=file/ps:record.mpg

am doing right? alternative approach/methods appreciated.


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