GNOME Bugzilla – Bug 677701
MJPEG2000 playback stutters
Last modified: 2012-12-18 15:38:21 UTC
http://samples.mplayerhq.hu/mov/FCP/JPEG2000.mov I don't know whether the problem is related to libjpasper performance, or the lack of parser to tag the video frames (bug 639231).
libjasper performance, frames should be coming nicely framed out of qtdemux.
I have new elements for 1.0 using openjpeg, which is much faster than jasper. Will clean them up and push soon.
Still not perfect but much better: commit e1416c11a452c11e07a5072bff1c5bbe0b053479 Author: Sebastian Dröge <sebastian.droege@collabora.co.uk> Date: Fri Dec 14 14:38:45 2012 +0000 openjpeg: Add OpenJPEG based JPEG2000 decoder
Do you know what's wrong with the image though? Looks like it needs deinterlacing, but qtdemux claims it's progressive: image/x-j2c, fields=(int)1, num-components=(int)3, colorspace=(string)sRGB, width=(int)720, height=(int)576, framerate=(fraction)25/1, pixel-aspect-ratio=(fraction)1/1 (or maybe it's supposed to be something 3Dish?)
I think it's interlaced but not marked as such
Much better indeed, it's only a tad slow on my machine now ;)