[FFmpeg-devel] Bugs with European H264 TV Channel Handling with FFMPEG

Reinhard Nissl rnissl
Sat Feb 2 23:41:19 CET 2008


Morfsta schrieb:

> The second is related to a set of channels in a Scanidanavian bouquet.
> There is artifacting on the picture during movement and panning.
> Reinhard Nissl reported on the VDR mailing list that this might be a
> problem relating to the handling of the progressive frame flag and the
> TVTIME deinterlacer in xine, but the problem is apparent in other
> interlacers (Bob, Linear Blend et al).

This was my reply on the VDR mailing list:

> Looks like the broadcaster has set the progressive frame flag and
> as such, no deinterlacing is applied when running the
> deinterlacer like that:
> -Dtvtime:method=Greedy2Frame,cheap_mode=0,pulldown=0,use_progressive_frame_flag=1
> To force deinterlacing even for progressive frames use this one:
> -Dtvtime:method=Greedy2Frame,cheap_mode=0,pulldown=0,use_progressive_frame_flag=0
> But it then looks like top and bottom field are shown in the
> incorrect order. Don't know whether this can be fixed. When the
> broadcaster sets the progressive frame flag, then there is
> usually no way to decide, which field must be displayed first.
> And it seems that tvtime's decision is the wrong one  :-( 

But I must admit that I didn't have time to look at the code so far.

Dipl.-Inform. (FH) Reinhard Nissl
mailto:rnissl at gmx.de

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