[Kdenlive-devel] small feature suggestion regarding crossfade transition

[Florian Cramer]

Am Samstag, 31. März 2007 um 15:03:54 Uhr (+0200) schrieb Stephane Fillod:
 
> In fact, this is most likely not only PowerMac-related but big-endian related.

Indeed, it looks as if byte order in the pixel encoding is screwed up.

> > Could this possibly also be the culprit in kdenlive? 
> 
> What is the source format type you're using in kdenlive? Is it a format
> that needs deinterlacing?

It happens with all formats I tested (DV/PAL, Xvid/avi, MPEG-2,
MPEG-4/h.264, motion jpeg), both with interlaced and progressive scan
video material.  

> > - Note how also the left and right padding frames around the 4:3
> > material in the 16:9 project have changed from black to green.
> > Video editing becomes a bit surreal this way... 
> 
> Could it be a 16:9 vs. 4:3 scaling issue on big-endian systems?

No, it also happens when I define the project as 4:3 PAL and import 
4:3 PAL DV material. (In other words, the problem occurs with any video
material played back in kdenlive.)


> > Both stills are from the same clip.  It's solely a real-time playback
> > issue within kdenlive, rendered videos are not affected.
> 
> Could it be something in consumer_sdl_preview of MLT ?

Probably. I wasn't sure how to test it outside kdenlive, but at least
got different visual bugs when building MLT with xine support.  

-F


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