- mjpg_streamer にパスが通っているか，チェック
$ which mjpg_streamer
/usr/local/bin/mjpg_streamer
- 共有ライブラリの確認
$ ldd /usr/local/bin/mjpg_streamer
linux-vdso.so.1 (0x0000ffffacbdb000)
libpthread.so.0 => /lib/aarch64-linux-gnu/libpthread.so.0 (0x0000ffffacb63000)
libdl.so.2 => /lib/aarch64-linux-gnu/libdl.so.2 (0x0000ffffacb4f000)
libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffffac9dc000)
/lib/ld-linux-aarch64.so.1 (0x0000ffffacbab000)
- 起動コマンド
$ mjpg_streamer \
-i "input_raspicam.so -x 640 -y 480 -fps 15 -q 80"
-o "output_http.so -p 8080 -w /home/pi/mjpg-streamer/www"
<![CDATA[MJPG Streamer Version: git rev: 5554f42c352ecfa7edaec6fc51e507afce605a34
i: fps.............: 15
i: resolution........: 640 x 480
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]]>
- コマンドパラメータ
-d : video device to open (your camera)
-f : frames per second
-r : resolution
-n : do not initalize dynctrls of Linux-UVC driver
-y : Use YUV format, default: MJPEG (uses more cpu power)
-r : resolution
- プロセスを確認：
$ ps -ef|grep mjpg
<![CDATA[pi 7468 920 1 23:56 pts/0 00:00:00 mjpg_streamer
-i input_raspicam.so -x 640 -y 480 -fps 15 -q 80
-o output_http.so -p 8080 -w /home/pi/mjpg-streamer/www
]]>
<![CDATA[$ mjpg_streamer -h
-----------------------------------------------------------------------
Usage: mjpg_streamer
-i | --input "<input-plugin.so> [parameters]"
-o | --output "<output-plugin.so> [parameters]"
[-h | --help ]........: display this help
[-v | --version ].....: display version information
[-b | --background]...: fork to the background, daemon mode
-----------------------------------------------------------------------
Example #1:
To open an UVC webcam "/dev/video1" and stream it via HTTP:
mjpg_streamer -i "input_uvc.so -d /dev/video1" -o "output_http.so"
-----------------------------------------------------------------------
Example #2:
To open an UVC webcam and stream via HTTP port 8090:
mjpg_streamer -i "input_uvc.so" -o "output_http.so -p 8090"
-----------------------------------------------------------------------
Example #3:
To get help for a certain input plugin:
mjpg_streamer -i "input_uvc.so --help"
-----------------------------------------------------------------------
In case the modules (=plugins) can not be found:
* Set the default search path for the modules with:
export LD_LIBRARY_PATH=/path/to/plugins,
* or put the plugins into the "/lib/" or "/usr/lib" folder,
* or instead of just providing the plugin file name, use a complete
path and filename:
mjpg_streamer -i "/path/to/modules/input_uvc.so"
-----------------------------------------------------------------------
[-fps | --framerate]...: set video framerate, default 5 frame/sec
[-x | --width ]........: width of frame capture, default 640
[-y | --height]........: height of frame capture, default 480
[-quality].............: set JPEG quality 0-100, default 85
[-usestills]...........: uses stills mode instead of video mode
[-preview].............: Enable full screen preview
[-timestamp]...........: Get timestamp for each frame
-sh : Set image sharpness (-100 to 100)
-co : Set image contrast (-100 to 100)
-br : Set image brightness (0 to 100)
-sa : Set image saturation (-100 to 100)
-ISO : Set capture ISO
-vs : Turn on video stablisation
-ev : Set EV compensation
-ex : Set exposure mode (see raspistill notes)
-awb : Set AWB mode (see raspistill notes)
-ifx : Set image effect (see raspistill notes)
-cfx : Set colour effect (U:V)
-mm : Set metering mode (see raspistill notes)
-rot : Set image rotation (0-359)
-stats : Compute image stats for each picture (reduces noise for -usestills)
-drc : Dynamic range compensation level (see raspistill notes)
-hf : Set horizontal flip
-vf : Set vertical flip]]>
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