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I know how to use the -h option, I just don't see any commands to start video capture with file incrementation unless I press the video capture button.

What is the command line to start video capture guvcview using filename incrementation.

The option -n, --video=FILENAME Video File name (capture from start) will start video capture, however, the filename is overwritten unless the gui capture button is used.

mchid
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1 Answers1

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In order to run guvcview capture from command line you need to send a SIGUSR1 signal to the running application. First start it:

guvcview --no_display -n capture_file.avi

Then from a second shell window type the following:

killall -s USR1 guvcview

This will start a video capture and save the file in the current directory. You need to combine these 2 lines into a shell script if you want to run it automatically. Information from guvcview output:

GUVCVIEW Signals:
SIGUSR1: Video stop/start capture
SIGUSR2: Image capture
SIGINT (ctrl+c): Exit
cioby23
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  • It works as a script, however, I would also like to have filename incrementation so that I don't have to manually change the filename each time myself. Thanks. – mchid May 23 '14 at 11:11
  • Then you can update the script to check using a for loop if the files exists and increment the new file name with 1 to bypass overwriting the existing files. – cioby23 May 23 '14 at 11:32
  • really, you don't have to send a SIGUSR1 signal; to start video capture (see guvcview -h | grep "capture from start" ) guvcview -n capture_file.avi does the same thing – mchid Jun 15 '14 at 21:52
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    @mchid:
    guvcview -h -n,--photo_total=TOTAL :total number of captured photos)     – Alex WLBI Oct 21 '16 at 05:34