On Wed, 27 Oct 2004, Derek Fountain wrote:
> OK, so can I basically assume that dvgrab is like a DV version of lavrec; that
> kino is like a DV version of lavplay/glav;
Ah, that's a good way to view things. I should have thought of that
analogy.
> and that smilutils has something like lav2yuv?
'smil2yuv' to be exact ;)
Along with 'smil2wav' (to extract the audio), 'smil2raw' to export
a DV stream from a .smil (edit list) file, and so on - quite a few
nifty programs comprise the smilutils.
> And that the output of dvgrab/kino/smilutils can be fed into the MJPEG suite
> of utilities much like I do with the output from lavrec/glav/lav2yuv?
Bingo!
Yep - in simple form it's
smil2yuv -a audiofile.wav input.dv | \
y4mscaler -O ... | \
yuvdenoise | ... \
yuvmedianfilter ... | \
... \
| mpeg2enc -f 8 ...
(I'll spare you the informatin overload about how smilutils can use
ffmpeg's DV decoder to get slightly better quality/speed, ... ;))
Instead of a raw .dv file you could use a '.smil' file which is the
counterpart to ".eli" - it's an edit list that specifies frame ranges.
I've found, and maybe others will chime in, DV very easy to work with -
you've got _1_ choice of frame size/quality/whatever, no worries
about field order (DV is bottom field first. Period), and the DV
converters seem to handle unsteady analog signals better than other
devices (which tend cause A/V sync issues when the signal is unsteady),
and so on.
Cheers,
Steven Schultz
-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
_______________________________________________
Mjpeg-users mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
