[mythtv] [PATCH] high speed smooth motion video

Ashley Bostock abostock at gmail.com
Sat Feb 12 10:20:16 UTC 2005

This was working fine from CVS a few days ago, but I checked out again
when 0.17 was released and now timestretch is nice and smooth but
ff/rew are back to the old "jumpy" video like they used to be.

Was smooth fast forward/rewind removed from CVS?


On Sat, 5 Feb 2005 14:17:53 -0800, Brad Templeton
<brad+mydev at templetons.com> wrote:
> On Sat, Feb 05, 2005 at 10:34:49PM +1100, Mark Spieth wrote:
> > attached is a patch that allows smooth play of video at faster than
> > realtime.
> > i.e. at audio stretch factors > 1.0
> > I have tested to 1.6 and works ok and is quite smooth. The effects of the
> > current code are quite blocky and jerky and wanted to get something for .17
> > that was better.
> This is much appreciated.  I have always liked Tivo's 2x and 3x perfectly
> smooth fast forward.  (Also, quite nicely, they don't do the reaction-time
> compensation at these speeds and only do them at the 20x and 60x speeds)
> If you're looking for more to do, I have also always thought it would be
> a good idea to enable turning on of closed-captions at 2x speed or 3x
> speed, so you can actually watch and follow a show at that speed, since
> you can read a lot faster than people can talk.   Possibly even a mode
> that shrinks the TV box to create a larger window do do scrolling closed
> captions along the side.   I have had DVD players that played sped-up
> audio during slow-FF, but this would be even better.
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