Posted: Wed Feb 11, 2004 4:25 pm
Joined: 18 Nov 2003
Posts: 255
Posted this before I think, posted at elysiun as well.
sometimes when I render the output video file plays back askew in different players. Just now it happened again for no specific reason. This one plays back fine in divx player and windows media player but in virtualdub or my video editor it's completely askew.
Here is a file with the above mentioned problem... only 250kb ish
http://www.alienhelpdesk.com/misc/littleeye46.avi
Posted: Wed Feb 11, 2004 5:21 pm
Joined: 16 Oct 2002
Posts: 1177
Your video is 370x200. DivX requires a width that is multiple of 4 and height multiple of 2. I don't know how you compressed this video, but the codec is just not supposed to work.
Martin
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Posted: Wed Feb 11, 2004 7:45 pm
Joined: 18 Nov 2003
Posts: 255
rendered to divx in blender... but this sort of thing has happened with avi raw as well.
Posted: Wed Feb 11, 2004 8:41 pm
Joined: 26 Nov 2002
Posts: 543
Yeah, I got this error a few times..
Dunno what it is though.
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Posted: Wed Feb 11, 2004 10:48 pm
Joined: 14 Oct 2002
Posts: 125
this error ahs only ever come up with me and about 1 million other blender users since the 2.31 release.
i beg to argue that it is a blender issue and not anything else.
thrid party video software has no issues encoding to these formats from the same render.
yet blender (with even a AVI JPG) will create files that are unable to be opend by a third party video editing program.
it is a huge BUG and to say its not blender is IMO crazy talk.
lets hope the issue gets sorted out soon
Alltaken
Posted: Wed Feb 11, 2004 10:58 pm
Joined: 16 Oct 2002
Posts: 219
There is no way in hell that it is a blender problem, if it plays fine in some players and not in others. I think that its a compression issue, i have never had it and so i think you swat up on your AVI compression, until u have any proof it is blender.
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Posted: Thu Feb 12, 2004 4:24 am
Joined: 16 Oct 2002
Posts: 1177
I don't know what version of DivX you used, but I did some test using the same video size and it's really impossible that you compressed this with a good copy of DivX. I tried both rendering a video of the same size and compressing from within Blender or recompressing your video in VirtualDub. Both failed.
Are you using an official release or one of the optimised version? Optimising can often cause hidden problems.
Martin
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Posted: Thu Feb 12, 2004 1:47 pm
Joined: 18 Nov 2003
Posts: 255
I used the official release. divx 5.2 or something... encoded the video in blender with codec selection.
And I repeat myself.... it's not the divx encoding that's the problem! I've had this same problem in AVI RAW!!! If I had a small enough file of that to post it online I would but avi raw is invariably huge. And when I have this issue in a raw bit of video it won't play correctly in any player, though blender will play it fine.
It's possible that it's the width/height of the video rendered but I remember clearly that I had this happen at 640x480 as well (but I think that was set at 50%) but that was a long time ago.
Posted: Thu Feb 12, 2004 4:26 pm
Joined: 16 Oct 2002
Posts: 1177
When I was talking about optimised version, I meant version of Blender, not DivX. And by optimised, I mean anything forcing optimisation higher than the O3 level that is current used for release. That includes anything compiled with the intel compiler, which we have found cause some problem with the rendering (optimisation errors).
Martin
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Posted: Fri Feb 13, 2004 2:09 am
Joined: 18 Nov 2003
Posts: 255
I meant... official release of blender combined with divx 5.3 or something.. Not official divx release.
So it's not optimised, not an "unofficial build" just blender 2.32 and I've been bumping into this problem on and off for quite a few versions now.. .can't remember when it first happened but it may well have been 6 months ago.
And might I say... no other app on my oc has ever created a similarly flawed file, and I work with lots of video... all I can say... it's definitely a blender bug.
Posted: Fri Feb 13, 2004 2:53 am
Joined: 06 Apr 2003
Posts: 217
That movie plays fine here. (mplayer)
Posted: Fri Feb 13, 2004 3:30 am
Joined: 20 Oct 2002
Posts: 13
| alien-xmp wrote: |
| That movie plays fine here. (mplayer) |
It worked here too.
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Posted: Fri Feb 13, 2004 4:20 am
Joined: 16 Oct 2002
Posts: 1177
| macouno wrote: |
| And might I say... no other app on my oc has ever created a similarly flawed file, and I work with lots of video... all I can say... it's definitely a blender bug. |
Ok, lets just assume it is.
Does it happen all the time or only when using particular settings?
If it happens with a particular set of settings, does it happen everytime or randomly?
If you can create a blend file that will always render incorrectly (to AVI raw, that way we can be sure the problem is Blender), than please upload the blend file so we can look at it.
Martin
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Posted: Fri Feb 13, 2004 2:13 pm
Joined: 18 Nov 2003
Posts: 255
Nope not always the same settings, not always the same file.
A lot of times a pc restart will fix it, and after the same render will turn out ok. That's the annoying thing... it looks like it's quite random. It does seem to me that it happens more often with smaller render sizes.
That's why I posted this video file. In the hope that someone could see what the flaw in it is.
Posted: Fri Feb 13, 2004 7:17 pm
Joined: 16 Oct 2002
Posts: 1177
If a reboot solves it, than I really doubt it's a Blender bug.
Martin
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