Re: [xine-devel] Can xine play backwards ?

[Miguel F. <mi...@ce...>]

> I have a question about trickmode playback in xine.
> Sofar I have only found slow, and fast motion but no backwards playback
> (e.g.  only showing each I-Frame).


muxer formats like mpeg make it very tricky to discover where the last
I-frame is. unless you are talking about dvd where it is possible to index
vobu (they probably match mpeg2 GOPs) and therefore you know where to seek
to get the previous I-frame.


> This would be extremly useful for tv timeshift stuff.
>
> Are there any plans to implement PVR functionality in xine-lib?


i have implemented a sort of backwards playback using seeking, it is
basically a thread on frontend side (no xine-lib changes). the result is
more or less like some cheap dvd players that only show I-frames. the main
difference is that i sort of "estimate" where last GOP is before seeking
(dvds have usually 2 GOPs per second)

besides, there is a xine plugin for WinTV-PVR 250 boards that can be used
to record, watch, timeshift...

regards,

Miguel