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Old 18th March 2004, 11:11   #1  |  Link
oddball
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Packed bitstream in XviD workaround for MT1389 players

At present players like the Elta 8883 will not playback XviD with packed bitstream correctly. If you have already got encodes in this format and do not wish to re-encode here is what you need to do in order to strip the packed bitstream out LOSSLESSY.

Tools you will need

3divx from http://www.3ivx.com
VirtualDubMod from http://virtualdubmod.sourceforge.net
Graphedit (Google it not hard to find)

Install 3ivx etc

First you need to demux the audio in VirtualDubMod. Open the AVI file in VirtualDubMod. Select menu 'Streams', 'Stream list' select audio file and click on 'demux' give it a name and remember where you saved it.

After that is demuxed close VirtualDubMod.

Open Graphedit. Drag the avi file onto Graphedit. It opens a graph. Delete all the boxes except the first two boxes (One says open file in one box and AVI Splitter in the other).

Go to menu 'filters' and add filter from 3ivx '3ivx muxer' and from DirectShow section 'filewriter' and give it name video.mp4 (Must give extension or it will bork).

right click on top out pin of AVI Splitter box and click render pin. It should connect itself to the 3ivx muxer and then to the file writer box. Right click on the 3ivx filter and select properties. Tick the Click on play button. Exit Graphedit when file completes.

Now click on 'File' 'New' in Graphedit. Drag the newly created MP4 file into Graphedit. Delete stuff after 3ivx splitter. Go to filters again and add AVI Mux and Filewriter under the DirectShow tree list. Right click on '3ivx Splitter' properties. Tick 'Allow Unsupported Decoders' and apply/OK it. Rick click on '3ivx Splitter and select 'Render pins'. Now click on play in Graphedit. This will render the file back to an AVI file ready for the final step.

Open VirtualDubMod again and open the newest AVI file. Go to stream list menu and select 'Add' and add back the audio file you demuxed earlier. If AC3 don't forget to right click the newly added audio file, select 'Interleave' and set audio interleave to 64 or 96 milliseconds (Preload can be left as is).

OK it and then make sure on the 'Video' menu it is set to 'Direct Stream Copy'. Go to 'File', 'Save as' and save to a new filename. This is your finished movie file with packed bitstream removed.

Done.

Word of warning. Check the audio is in sync. If not you may need to remux again in VirtualDubMod adjusting the audio delay slightly (That's another topic though). Also make sure 'Direct Stream Copy' is set under VirtualDubMod's 'Video' menu or it will try to re-encode the video (You don't want to do that).

Longwinded but works. Waiting for a tool that removes packed bitstream for you in one easy step.

EDIT: Updated. No need for MP4UI (And I heard it can cause probs).
EDIT: Corrected filter to use on muxing MP4 back to AVI. Thanks for the heads up.

Last edited by oddball; 20th March 2004 at 12:21.
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Old 18th March 2004, 11:27   #2  |  Link
bond
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Quote:
Originally posted by oddball
Waiting for a tool that removes packed bitstream for you in one easy step.
waiting for a hardware player which doesnt only handle this old outdated avi container, which this packed bitstream hack was invented for, to be able to use the .mp4 file directly
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Old 19th March 2004, 09:38   #3  |  Link
monty0815
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Does anybody know, how I can tell, if packed bitstream was turned on during the encode? Is there any app that shows this kind of information?
I simply can't remember, on which movies I had this enabled, since starting of with Xvid 1.0.
cheers, monty
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Old 19th March 2004, 12:40   #4  |  Link
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Re: Packed bitstream in XviD workaround for MT1389 players

Quote:
Originally posted by oddball
Go to filters again and add AVI Splitter and Filewriter under the DirectShow tree list
I think you mean AVI Mux

You can also download GraphEdit from the 3ivx windows download page
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Old 19th March 2004, 12:49   #5  |  Link
bond
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Quote:
Originally posted by monty0815
Does anybody know, how I can tell, if packed bitstream was turned on during the encode?
no way
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Old 19th March 2004, 13:26   #6  |  Link
manono
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DRF Analyzer
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Old 19th March 2004, 13:31   #7  |  Link
bond
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cool, didnt know that
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Old 19th March 2004, 15:13   #8  |  Link
ashley
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I've just tried DRF analyser, and in part of the report it says "The file has Packeted Frames"

Is this the part that means that packed bitstream was used?
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Old 19th March 2004, 17:44   #9  |  Link
manono
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Yes, and if Packed Bitstream isn't used, then it says nothing at all about it.
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Old 19th March 2004, 18:42   #10  |  Link
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thanks, manono

You just saved me a lot of burning on dvd-rw and testing on my standalone.
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Old 20th March 2004, 00:21   #11  |  Link
oddball
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Stux corrected. Thanks.
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Old 20th March 2004, 10:20   #12  |  Link
FZero
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does packed bitstream cause problems on all standalones? I have the liteon lvd-2002.
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Old 20th March 2004, 12:37   #13  |  Link
oddball
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I don't know. But XvID with Packed bitstream or QPEL or GMC enabled can cause the MT1389 chips to b0rk.
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Old 20th March 2004, 12:46   #14  |  Link
bond
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guys

it also depends on whether you used 1 or more than 1 consecutive b-frames with packed bitstream
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Old 20th March 2004, 13:24   #15  |  Link
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I'd rather they not use any of those options at all at the moment. Then again I'd rather they fix the damned firmware and hurry up and release it!
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Old 21st March 2004, 13:58   #16  |  Link
Sharro
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Quote:
Originally posted by oddball
... or QPEL ... can cause the MT1389 chips to b0rk.
Either I read it wrong... or you are wrong ... QPEL plays flawlessly on MT1389DE.

All the best.

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Old 21st March 2004, 18:21   #17  |  Link
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I have an XviD encoded with QPEL and all I get is sound and no video playback.
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Old 21st March 2004, 18:37   #18  |  Link
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Then surely the problem is not qpel.

Wrong muxing ? You could try to remux with Virtualdub
Custom Matrices ? Some will not play.
Horizontal resolution above 720 ? Does not work also.
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Old 22nd March 2004, 22:27   #19  |  Link
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All in all... very nice work oddball

Cheers
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Old 23rd March 2004, 13:51   #20  |  Link
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Hoing back to the QPEL issue. I had a file with packed bitstream AND QPEL. I did the usual to get rid of the packed bitstream but now that file will not play video in the Elta. It just plays the audio and remains stuck on the file selection screen. If the file is played on the computer it plays fine (But if you seek you have to wait until it catches up to the next keyframe).

Does QPEL have various settings?
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