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Re: How to capture composite video

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  Re: How to capture composite video Dan Ritter <dsr@randomstring.org> - 2021-05-17 19:10 +0200
    Re: How to capture composite video deloptes <deloptes@gmail.com> - 2021-05-17 20:30 +0200

#235269 — Re: How to capture composite video

Charlie Gibbs wrote: 
> I have a number of VHS tapes which I'd like to digitize, and I'm
> trying to figure out where to start, hardware- and software-wise.
> I'm running Debian Buster (10.5), kernel 4.19.0-10-amd64.  I found a
> pcHDTV HD-5500, which I believe is basically a Hauppauge WinTV-PVR-150
> tweaked for Linux, and dropped it into my box, where it is found by
> lspci and shows up as /dev/video0.  The card has an extender cable
> which leads to a bracket with RCA connectors for audio and composite
> video, as well as an S-Video connector.  (For now, at least, I'm not
> interested in the TV tuner on the card.)
> 
> Presumably, with the proper software and configuration settings,
> I should be able to plug a VCR into the RCA connectors and have
> video come up on the computer's screen, and hopefully save it to
> disk in some sort of standard format.
> 
> What's a good starting point to find information on how to do this?

The subsystem you are looking for is V4L2, Video For Linux 2.

Showing up as /dev/video0 is an extremely positive sign.

https://www.linuxtv.org/wiki/index.php/V4L_capturing is what you
want to read.

-dsr-

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#235292

Dan Ritter wrote:

> The subsystem you are looking for is V4L2, Video For Linux 2.
> 
> Showing up as /dev/video0 is an extremely positive sign.
> 
> https://www.linuxtv.org/wiki/index.php/V4L_capturing is what you
> want to read.
> 

mencoder will give you different flavors and you could cook the soup that
tastes the best to you.
For example the Hauppauge card would provide a specific max quality of
output (the analog to digital converter). Thus here people suggest other
hardware. It could be the hauppauge is very low quality.

for example when analog TV was still popular I used with gl2 video out
driver following. Similar with mencoder except that it goes into a file

mplayer -tv
driver=v4l2:outfmt=yuy2:width=640:height=480:device=/dev/video0:input=0:forceaudio:immediatemode=0:adevice=/dev/dsp1:amode=1:forcechan=2:audiorate=44100:audioid=1:volume=75:norm=0:normid=0:chanlist=europe-west -vo
gl2 -ao alsa:noblock:audiorate=48000:device=duplex tv://

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