[mythtv] question about speeds - speedinc vs fast forward

Ed W lists at wildgooses.com
Fri Dec 28 13:34:23 UTC 2007

Ronald Frazier wrote:
> I was doing a little work on tv_play.cpp, fixing some bugs with the
> network control interface and adding some customizability with respect
> to playback speeds and repositioning amounts. In the process, I
> noticed that fast forwarding and the speedinc button use different
> intervals. Fast forwarding currently uses speeds of 3, 5, 10, 20, 30,
> 60, 120, and 180, and allows you to customize the speed via DB
> settings. The speedinc feature, on the other hand, uses speeds of 2,
> 4, 8, and 16, and is NOT customizable.
> Myself, I've never used the speedinc feature before, and I'm not sure
> how it is intended to be used. Is it intentional that these 2 features
> use different speed steppings? I could choose to either consolidate it
> with the fast forward speeds (so they share a common set of speeds),
> or I could leave it on its own and allow it to be customized
> separately. Any opinions

I think the idea of the second one is that it plays back all the frames 
at an accelerated speed, but the former jumps and seeks

Personally I would prefer a kind of hybrid which allows a Sky+ style 
fast forward where say instead of a 30 second skip forward it will 
instead play 15 frames over the next 1 real second where each frame is 
every 2 seconds of what is being skipped.  That way it becomes easier to 
kind of glance at what you are missing by skipping forward.  ie 
basically a range of very high speed fast forward modes

Ed W

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