Commands tagged webcam sorted by votes

Commands tagged webcam (14)

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Press enter and take a WebCam picture.

This command takes a 1280x1024 p picture from the webcam. If prefer it smaller, try changing the -s parameter: qqvga is the tiniest, vga is 640x480, svga is 800x600 and so on. Get your smile on and press enter! :)
This is sample output - yours may be different.
14

read && ffmpeg -y -r 1 -t 3 -f video4linux2 -vframes 1 -s sxga -i /dev/video0 ~/webcam-$(date +%m_%d_%Y_%H_%M).jpeg

MarxBro · 2013-01-17 11:37:09 7
mplayer webcam window for screencasts

When recording screencast some people like to have the image from their webcam, so the can show something, that can't be seen on the desktop. So starting mplayer with these parameters you will have a window with no frames, borders whatsoever, and selecting the window a hitting the "F" key you will bring it in fullscreen. if you want to position the frame somewhere else, you could play with the --geomeptry option where 100%:100% mean bottom right corner. The HEIGHT and WIDTH can't be changed as you like, since the most webcams support specified dimensions, so you would have to play with it to see what is supported
This is sample output - yours may be different.
7

mplayer -cache 128 -tv driver=v4l2:width=176:height=177 -vo xv tv:// -noborder -geometry "95%:93%" -ontop

vkolev · 2010-11-21 00:08:44 0
Record audio and video from webcam using mencoder

Record audio to MP3 stream and video to MPEG-4 stream from webcam to AVI file using mencoder. Gives floating point exception in some mencoder versions.
This is sample output - yours may be different.
6

mencoder tv:// -tv driver=v4l2:width=800:height=600:device=/dev/video0:fps=30:outfmt=yuy2:forceaudio:alsa:adevice=hw.2,0 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1800 -ffourcc xvid -oac mp3lame -lameopts cbr=128 -o output.avi

ivalladt · 2009-09-15 19:46:06 0
Record audio and video from webcam using ffmpeg

Record from a webcam, audio using ALSA encoded as MP3, video as MPEG-4.
This is sample output - yours may be different.
5

ffmpeg -f alsa -r 16000 -i hw:2,0 -f video4linux2 -s 800x600 -i /dev/video0 -r 30 -f avi -vcodec mpeg4 -vtag xvid -sameq -acodec libmp3lame -ab 96k output.avi

ivalladt · 2009-09-15 17:03:25 0
View webcam output using mplayer

View webcam output using mplayer, with correct fps and outfmt settings according to my webcam model.
This is sample output - yours may be different.
5

mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0:fps=30:outfmt=yuy2

ivalladt · 2009-09-15 19:41:41 0
Record a webcam output into a video file.

The option -an disables audio recording, -f forces the use of video4linux for the input, -s sets the video to the size 320x240, -b sets the recording bitrate, -r sets the frame rate to 15fps, -i gives the input device, -vcodec sets the output format. Press Q to stop recording or you can specify the recording time with the -t option like -t 00:1:30
This is sample output - yours may be different.
3

ffmpeg -an -f video4linux -s 320x240 -b 800k -r 15 -i /dev/v4l/video0 -vcodec mpeg4 myvideo.avi

dcabanis · 2009-06-19 17:41:43 2
View webcam output using GStreamer pipeline

Open a window that displays camera capture. Framerate, width and height may be changed to match your needs.
This is sample output - yours may be different.
3

gst-launch-0.10 autovideosrc ! video/x-raw-yuv,framerate=$fraction$30/1,width=640,height=480 ! ffmpegcolorspace ! autovideosink

jcollado · 2009-09-16 06:31:23 0
Instant mirror from your laptop + webcam
This is sample output - yours may be different.
3

mplayer tv:// -vf mirror

ianux · 2009-09-16 17:29:09 0
Simple Video Surveillance by email

This takes a picture (with the web cam) every 5 minutes, and send the picture to your e-mail. Some systems support mail -a "References: " so that all video surveillance emails are grouped in a single email thread. To keep your inbox clean, it is still possible to filter and move to trash video surveillance emails (and restore these emails only if you really get robbed!) For instance with Gmail, emails sent to [email protected] can be filtered with "Matches: DeliveredTo:[email protected]" Show Sample Output
This is sample output - yours may be different.
```
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
--- Capturing 15 frames...
Captured 15 frames in 1.86 seconds. (8 fps)
--- Processing captured image...
Writing JPEG image to '-'.
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
--- Capturing 15 frames...
Captured 15 frames in 1.86 seconds. (8 fps)
--- Processing captured image...
Writing JPEG image to '-'.
```
2

while true ; do fswebcam -d /dev/video0 -r 1280x1024 -F 15 - | uuencode $(date +\%Y\%m\%d\%H\%M).jpeg | mail -s "Video surveillance" [email protected] ; sleep 300 ; done

pascalv · 2016-08-09 14:22:45 0
get newest jpg picture in a folder

search the newest *.jpg in the directory an make a copy to newest.jpg. Just change the extension to search other files. This is usefull eg. if your webcam saves all pictures in a folder and you like the put the last one on your homepage. This works even in a directory with 10000 pictures.
This is sample output - yours may be different.
1

cp `ls -x1tr *.jpg | tail -n 1` newest.jpg

Psychodad · 2009-06-17 20:32:04 3
Instant mirror from your laptop + webcam (fullscreen+grab)

This directly puts the "mirror" into fullscreen, and lets you take photos by pressing the 's' key. I bet appearance conscious people will have keyboard shortcut for this command by now.
This is sample output - yours may be different.
1

mplayer -fs -vf screenshot,mirror tv://

kamathln · 2009-09-17 05:15:42 0
View webcam output using GStreamer pipeline

view webcam video with cvlc
This is sample output - yours may be different.
0

cvlc v4l2:///dev/video0

anjo · 2016-01-06 06:40:11 0
Send and streamming video to web

Is a simple script for video streaming a movie
This is sample output - yours may be different.
-1

cat video.ogg | nc -l -p 4232 & wget http://users.bshellz.net/~bazza/?nombre=name -O - & sleep 10; mplayer http://users.bshellz.net/~bazza/datos/name.ogg

el_bazza · 2010-11-29 03:34:31 1
Press enter and take a WebCam picture.

Take a picture from your webcam and save it to a jpeg. A very slightly modified version of MarxBro's command.
This is sample output - yours may be different.
-3

-y -r 1 -t 3 -f video4linux2 -vframes 1 -s sxga -i /dev/video0 ~/webcam-$(date +%m_%d_%Y_%H_%M).jpeg

navyjeff · 2013-02-27 05:32:03 0

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Double your disk read performance in a single command

(WARN) This will absolutely not work on all systems, unless you're running large, high speed, hardware RAID arrays. For example, systems using Dell PERC 5/i SAS/SATA arrays. If you have a hardware RAID array, try it. It certainly wont hurt. You may be can test the speed disk with some large file in your system, before and after using this: $ time dd if=/tmp/disk.iso of=/dev/null bs=256k To know the value of block device parameter known as readahead. $ blockdev --getra /dev/sdb And set the a value 1024, 2048, 4096, 8192, and maybe 16384... it really depends on the number of hard disks, their speed, your RAID controller, etc. (see sample)

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Commands tagged webcam (14)

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