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Bug 677701 - MJPEG2000 playback stutters
MJPEG2000 playback stutters
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
unspecified
Other Linux
: Normal normal
: 1.1.1
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2012-06-08 12:50 UTC by Bastien Nocera
Modified: 2012-12-18 15:38 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Bastien Nocera 2012-06-08 12:50:21 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).
Comment 1 Tim-Philipp Müller 2012-06-08 13:19:34 UTC
libjasper performance, frames should be coming nicely framed out of qtdemux.
Comment 2 Sebastian Dröge (slomo) 2012-12-15 09:56:37 UTC
I have new elements for 1.0 using openjpeg, which is much faster than jasper. Will clean them up and push soon.
Comment 3 Sebastian Dröge (slomo) 2012-12-16 19:56:44 UTC
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
Comment 4 Tim-Philipp Müller 2012-12-16 23:26:06 UTC
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?)
Comment 5 Sebastian Dröge (slomo) 2012-12-17 08:59:23 UTC
I think it's interlaced but not marked as such
Comment 6 Bastien Nocera 2012-12-18 15:38:21 UTC
Much better indeed, it's only a tad slow on my machine now ;)