Re: [xine-devel] DVD trick modes and forward/playback status in Xine

[Simon Truss <simon@xxxxxxxxxxxxxxxxxxx>]

Kirill Belokurov wrote:
> Hi!
>
> Is anyone working on implementing the DVD playback trick modes functionality
> at the moment? I searched the list archives and see that there were some
> attempts to implement it, but from API/sources - this functionality is still
> absent (the only thing I can see is a set of defines XINE_TRICK_MODE_* in <
> xine.h> - I assume that this stuff is not actually used anywhere, correct?)


didn't Reinhard Nissl fix xine to support I-frame only mpeg2.

> Can somebody share his experience regarding implementation of this feature,

that would not be me. A look at vdr-xine and vdr may help.

> The alternative - usage of fine speed xine option for fast (>4x) playback is
> actually a nasty hack because it saturates the CPU quickly. All Win32
> players that I saw generate the almost constant CPU load starting from 2x
> mode (which is equal to 2x playback). I believe it is because up to 2x speed
> these players force decoder to "decode faster" and for speeds >2x they
> switch to other mode - trick playback in which only I-frames (and sometimes
> P-frames - for not-very high speeds) are decoded&displayed.

vdr can certainly repack pes streams and pull data out by frame type.

Simon



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