- 起動コマンドが長いので，起動用シェルスクリプトをつくる：
$ vi ~/mjpg.sh
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<![CDATA[#!/bin/sh
PORT="8080"
WIDTH=$1
HEIGHT=$2
FRAMERATE=$3
QUALITY=$4
OUT="/home/pi/mjpg-streamer/www"
if [ $WIDTH = "?" ]; then
echo "mjpg width height framerate quality"
echo "quality : 0-100"
exit
else
mjpg_streamer \
-i "input_raspicam.so -x $WIDTH -y $HEIGHT -fps $FRAMERATE -q $QUALITY" \
-o "output_http.so -p $PORT -w $OUT"
fi]]>
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$ chmod +x mjpg.sh
- コマンドの書式照会
~ $ ./mjpg.sh ?
mjpg width height quality framerate
quality : 0-100
- 起動
~ $ ./mjpg.sh 320 240 2 10 &
<![CDATA[MJPG Streamer Version: git rev: 5554f42c352ecfa7edaec6fc51e507afce605a34
i: fps.............: 10
i: resolution........: 320 x 240
i: camera parameters..............:
Sharpness 0, Contrast 0, Brightness 50
Saturation 0, ISO 0, Video Stabilisation No, Exposure compensation 0
Exposure Mode 'auto', AWB Mode 'auto', Image Effect 'none'
Metering Mode 'average', Colour Effect Enabled No with U = 128, V = 128
Rotation 0, hflip No, vflip No
ROI x 0.000000, y 0.000000, w 1.000000 h 1.000000
o: www-folder-path......: /home/pi/mjpg-streamer/www/
o: HTTP TCP port........: 8080
o: HTTP Listen Address..: (null)
o: username:password....: disabled
o: commands.............: enabled
i: Starting Camera
Encoder Buffer Size 81920]]>
コマンドの最後の「&」は,「デーモンで起動」
起動メッセージに対しリターンキーで，コマンドプロンプトを得る
- ps で起動を確認
$ ps -ef | grep mjpg
<![CDATA[pi 7685 7684 1 01:12 pts/1 00:00:01 mjpg_streamer
-i input_raspicam.so -x 320 -y 240 -fps 10 -q 80
-o output_http.so -p 8080 -w /home/pi/mjpg-streamer/www]]>
- PCからアクセス
http://[IPアドレス]:8080/stream_simple.html
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