On Jun 25, 2009, at 7:29 PM, Steven Boswell II wrote:
>I've got to get out the door and don't have time to do much more
>than clear out the mailbox.
No problem...I couldn't get to this e-mail until after work anyway :-)
>Shift the video one line up or down within the frame. This is
>MUCH bette
On Fri, 2008-05-23 at 05:15 +0200, Bernhard Praschinger wrote:
> Hallo
>
> Florin Andrei wrote:
> > I'm looking for a way to convert a 60fps video stream to true NTSC frame
> > rate (29.97i). Converting frames to fields to half the frame rate and
> > interlace is easy, but it's the shaving off o
On Wed, 2006-11-29 at 09:30 -0500, Dan Maas wrote:
> > What do you have in mind when you say lossless re-encoding ?
>
> If a frame has already been passed through a DV codec, then it is
> (theoretically) possible to re-encode it with no quality loss, by
> using the exact same bitstream. This is de
Hi Stefan!
On Sun, 2006-11-26 at 19:31 +0100, stefan wrote:
> Roman Shaposhnik schrieb:
>
> >> Yes, I do refer to massive quality-loss I have observed in such an
> >> "encoder-stress-test". I can, if you wish, do this test again.
> >>
> >
&
On Sun, 2006-11-26 at 20:51 +0100, Martin Samuelsson wrote:
> On Sun, 26 Nov 2006 19:41:35 +0100
> stefan <[EMAIL PROTECTED]> wrote:
>
> > I am amazed. After 10 times DV re-encoding with ffmpeg, the file at a
> > first glance looks like it was unaltered. WOW.
>
> Looks like this is going to make
Jonathan
On Mon, 2006-11-27 at 11:20 +1030, Jonathan Woithe wrote:
> I don't know if you're including my comments in this "bunch of statements",
No, not yours! ;-)
> BTW I don't know off-hand whether cinelerra-dv use libdv of ffmpeg for DV
> encoding by default. I know they support ffmpeg t
On Fri, 2006-11-24 at 06:20 -0500, Dan Maas wrote:
> - ffmpeg's DV encoder does not take any special care to do lossless
> re-encoding of macroblocks that have already been run through a DV
> codec. (although it will reproduce 8-bit Y'CbCr values accurately, so
> at least you don't have to worry ab
Hi
On Fri, 2006-11-24 at 11:19 +0100, stefan wrote:
> Yes, I do refer to massive quality-loss I have observed in such an
> "encoder-stress-test". I can, if you wish, do this test again.
That'll be *very* much appreciated (if not the tests themselves,
then just a complete recipe for reproducin
On Thu, 2006-11-23 at 12:16 +0100, Richard Rasker wrote:
> It would be nice if there was a tool to calculate which values for bit
> rate and quantization would still result in a valid DVD MPEG file, based
> on a given DV file, without actually having to go through the lengthy
> rendering process it
On Fri, 2006-11-24 at 09:33 +0100, stefan wrote:
> Jonathan Woithe schrieb:
> > The very noticeable degradation comes about due to a bug in libdv which is
> > used to do the encoding to DV from cinelerra. When I last looked into this
> > about 2 years ago ffmpeg's DV codec wasn't as badly affected
On Fri, 2006-11-24 at 09:02 +1030, Jonathan Woithe wrote:
> > Unfortunately, Cinelerra doesn't allow for CLI driven rendering other
> > than the rather inflexible batch render functions, and I though I found
> > that rendering an edited project first to DV, then rendering the DV file
> > to MPEG, g
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