[vdr] Re: cutting frame accurate in VDR?

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Jörg Knitter wrote:
> 
> ...
> > > If you want to optimize this you don't even need to replace the last
> B-
> > frame if you provide the next I-frame on which the B-frame is
> dependend on.
> > But this may result in strange behaviour when replaying the end.
> > >
> > > CU,
> > > Christian.
> >
> > If you want to do frame accurate cutting you *must* convert the entire
> GOP
> > into
> > a sequence of I-frames, because that's the only way you can arbtrarily
> > position
> > a cutting mark and display each individual frame.
> >
> > Klaus
> > --
> 
> Hi Klaus,
> 
> as you can see I still did not test the cut feature in VDR.
> 
> Because I can move in an MPEG-Stream forward step by step (also remember
> e.g. Hardware/Software DVD players), I thought, something similar could
> be implemented: Rough cut by jumping through the I-frames, then
> frame-by-frame-forward decoding for setting the exact cut point.
> How this cut is finally done (reencoding, merging) is another story...
> 
> Jörg

But you also want to be able to fine-position your cutting mark, and that includes
(in most cases) being able to move it _backwards_ frame by frame, too.

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________


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