Re: [gentoo-user] Re: [OT} GStreamer: How to view AND record a stream coming from an USB Webcam

[meino.cramer@gmx.de]

James <wireless@tampabay.rr.com> [14-06-16 05:36]:
>  <meino.cramer <at> gmx.de> writes:
> 
> 
> > After unsuccessfully trying vlc with a Logitech C920 HD Pro Webcam 
> > (over 2 seconds delay between audio and video). 
> 
> 
> Have you tried  : media-video/ffmpeg ?
> 
> This wiki is full of good information. Many video packages use
> ffmpeg as part of their core solution... Pay attention to the myriad
> of flags you can set and the order of your syntax (manual) strings.
> 
> 
> http://trac.ffmpeg.org/wiki
> 
> Here are some ideas:
> 
> https://wiki.archlinux.org/index.php/FFmpeg
> 
> You *may* be able to use the copy command of ffmpeg to spit and view
> the h.264 (x.264) stream in real time.  Google for some more syntax
> snippets.
> 
> Also there is zoneminder a video surveillance application. I do not
> know if they ever added x.264 support....
> 
> 
> HTH,
> James
> 

Hi James,

thanks for your resply 8)

Zoneminder needs to intercept the video stream to analyse it --
that means, that it need to decode the stream, analyse it and 
to encode it again.
Furthermore it needs a webserver...
A little to much load for my CPU and a little too much effort...

FFmpeg crashes and breaks (similiar reports on the web...) when
trying to watch video streams from the c920...

Currently the best results I get with gstreamer...but then I
cannot control the uvc parameters....


Sigh...things are crossing the border between "interesting" to
"complex"...

Best regards,
mcc