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Old 09-01-2017, 10:43 AM   #1
pan64
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video digitization


hi all,
I have a lot of old Video 8 cassettes, containing family excursions (before 2000) - Was taken with a Canon UC 2000, which is still working well (just the batteries are out).
I bought a Conexant cx231xx based device, that is a diamond multimedia vide capture vc500, which is working properly too I think.
But I cannot grab my videos, all the softwares I tried have some bugs. I tried Windows with ezgrabber - low quality result, Power Director 12 - DRM errors (?). Those piece of softwares were delivered together with the VC500. VLC - incorrect colors.
I tried also linux, debian 9, and VLC which was hard to configure and there were size problems (video was resized), and finally I tried mpv. But it looks like I cannot configure mpv to do the job. The actual problem is that my linux is unable to convert the sound (or video?) on the fly, so the result is useless.

Now I would like to ask you to give me some help to configure mpv or suggest something better.
At first I want only to save the videos and I can convert them later to another format if I want to do so, but first I want only to put them onto my disk (regardless of file size, just keep the quality, the video size, the audio without any loss - if possible).

Thanks
 
Old 09-01-2017, 02:55 PM   #2
jefro
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I had to go to the company for the windows codec deal.

For linux this is a good tutorial maybe. Try it. https://forum.videolan.org/viewtopic.php?t=110646
 
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Old 09-02-2017, 03:32 AM   #3
ondoho
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don't convert on the fly.
capture first the raw stream, convert later.
 
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Old 09-02-2017, 04:54 AM   #4
pan64
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Quote:
Originally Posted by ondoho View Post
don't convert on the fly.
capture first the raw stream, convert later.
Yes, but actually I don't know how to do that.
 
Old 09-02-2017, 05:51 AM   #5
pan64
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Quote:
Originally Posted by jefro View Post
I had to go to the company for the windows codec deal.

For linux this is a good tutorial maybe. Try it. https://forum.videolan.org/viewtopic.php?t=110646
I wanted to say thanks for the link, this works, but not.
Actually VLC did not accept directory settings, so it created a disk full within 20 minutes (because used the default dir instead of the one I specified).
Nothing works as expected/planned/documented....
(including v4l2-ctl, vlc)

Anyway thanks, it looks like it may work if I could give it more disk space....

Last edited by pan64; 09-02-2017 at 05:56 AM.
 
Old 09-02-2017, 09:03 AM   #6
ondoho
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Quote:
Originally Posted by pan64 View Post
Quote:
Originally Posted by ondoho View Post
don't convert on the fly.
capture first the raw stream, convert later.
Yes, but actually I don't know how to do that.
which one of the two? or both?
i'm sorry i cannot give any first hand advice, but -
assuming you have the hardware that captures the video & feeds a signal to the computer, it doesn't matter anymore where it originally came from.
my first step would be to seek out ffmpeg's docs, regarding any kind of capture.
so, would this help:
http://www.bogotobogo.com/VideoStrea...dows_Linux.php
https://trac.ffmpeg.org/wiki/Capture/Desktop
(if i leave out ffmpeg from my search terms, i'm getting mostly 9-year-old advice about video4linux)?
 
Old 09-02-2017, 10:51 AM   #7
pan64
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The problem was that I could not capture only the raw video, because it was converted on the fly and I had no any idea why - using mpv. Based on the link from jefro I could finally do what you suggested, using vlc. I do not really care about mpv any more.
Now I have a working "toolchain": vlc to capture, avconv to convert it and avidemux-gtk to split it into pieces.
Thanks all for your help.
 
  


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