MPEG4 Modifier v1.3.4 Released (Updated 2005-Dec-14) - Page 23

Moitah · 16th September 2006, 03:31

The problem was that it set the keyframe flag wrong for OpenDML index entries. The keyframe flag is a single bit inside the chunk size field, a stupid mistake in the code made it set several bits instead which messed up the chunk size field for non-keyframes.

I found another bug too, I guess you didn't see it because the second RIFF chunk in your AVI is pretty small, but it tried to fully read RIFF extension chunks into memory which usually will cause an out of memory exception.

Fixed version coming soon...

ReinerSchweinlin · 16th September 2006, 09:22

Thanx for keeping up the work on this excellent tool!

rse · 16th September 2006, 11:02

Quote:

I found another bug too, I guess you didn't see it because the second RIFF chunk in your AVI is pretty small...

I was patient enough to watch the first 3 shown keyframes, but I didn´t test it to the end.

(I suppose the second RIFF chunk to contain the part of the Video > 2GB?) It didn´t work anyways.

Quote:

Fixed version coming soon...

Thanks a lot!

Moitah · 17th September 2006, 01:53

1.4.2 released.

Sumsebiene · 19th September 2006, 22:37

Ok i now answered my question which i had earlier in this thread by myself. Your tool really works ! Great job ! But it just worked with vlc-player for me. Media Player classic and windows media player same goes for winamp don't show the video file in 16:9. So i just changed to vlc player :O
Is this the same for you too ? Or with which media players should it work ?

Moitah · 19th September 2006, 23:05

@Sumsebiene: It depends which DirectShow decoder you're using. It will work with XviD 1.1.0, and ffdshow if you have the "Use overlay mixer" and "Allow output format changes during playback" options checked ("Output" section in ffdshow config).

Sumsebiene · 20th September 2006, 11:48

ah big thx to you

Bear · 22nd September 2006, 10:15

I tried to add packed bitstream for some files, but I got this error message:

cannot pack a file with drop frames

How can I fix it?

altufaltu · 9th October 2006, 09:57

Hi,

I get following error with UnpackCL v1.2.1:

Loading: 73.7%Error: This is not a valid MPEG-4 video (startcode not found at beginning of frame).

The error got shifted to 74.3% when I made another .avi through VirtualDub (direct stream copy).

Please help me get rid of this error.

Thank you.

ReinerSchweinlin · 9th October 2006, 10:47

Maybe your AVI-File needs re-indexing? Just a guess, but try loading it in VD with "extended options" in the "open video file" dialog. then chose re-index. Afterwards save it again usind "direct stream copy". Might help.

Moitah · 9th October 2006, 22:49

@Bear: There's not really anything you can do about it. I'll see if there's a better way to handle this for newer versions.

@altufaltu: The video is probably corrupt at that location. If you really need it unpacked, I think you're stuck with reencoding.

altufaltu · 10th October 2006, 08:44

Thanks for the help. I ran it through AVIFixed 2.0 b1 and now I get another error:

Loading: 98.5%Error: Too many VOPs in a frame.

Please help.

Bear · 10th October 2006, 11:57

I found the problem. I load the avi in virtualdub, I found some drop frame in the file, after I remove those drop frame, your program can pack the video without problem.

Is there any chance your program can handle drop frame as well?

eXistenZ_69 · 12th October 2006, 22:03

@Moitah

Hi,

I upgraded from MPEG4Modifier v1.3.4 to 1.4.2 a few days ago and noticed that unpacking the same avi in both versions results in files with different md5 checksums. The frame lists are identical though. Is this supposed to be like this? Has the non-OpenDML avi writing code been changed? Should I worry?

Kind regards,

eXistenZ_69

Moitah · 13th October 2006, 03:01

@eXistenZ_69: The new AVI writing code is used all the time, not just for OpenDML, so it's normal for the files to be different than those written by previous versions. This is due to differences in the structure of the AVI files (padding or other small things) but the video/audio data are the same.

eXistenZ_69 · 13th October 2006, 18:47

Ah ok. Hopefully there are no new bugs or player compatibility problems then...

Greetz,

eXistenZ_69

jack3216 · 19th October 2006, 13:13

could you give me the link please to download MPEG4 Modifier v1.3.4

ReinerSchweinlin · 19th October 2006, 13:17

check moitah´s sig

jack3216 · 19th October 2006, 17:59

i have a video file which is not mpeg4 how can i convert it to use MPEG MODIFIER

foxyshadis · 19th October 2006, 19:29

If it's not mpeg4 you can't use it at all. You just re-encode with divx or xvid, setting the options correctly so that you don't need mpeg4 modifier afterward.

16th September 2006, 03:31	#441 \| Link
Moitah Registered User Join Date: Feb 2004 Location: Virginia, USA Posts: 334	The problem was that it set the keyframe flag wrong for OpenDML index entries. The keyframe flag is a single bit inside the chunk size field, a stupid mistake in the code made it set several bits instead which messed up the chunk size field for non-keyframes. I found another bug too, I guess you didn't see it because the second RIFF chunk in your AVI is pretty small, but it tried to fully read RIFF extension chunks into memory which usually will cause an out of memory exception. Fixed version coming soon... __________________ moitah.net

17th September 2006, 01:53	#444 \| Link
Moitah Registered User Join Date: Feb 2004 Location: Virginia, USA Posts: 334	1.4.2 released. __________________ moitah.net

19th September 2006, 23:05	#446 \| Link
Moitah Registered User Join Date: Feb 2004 Location: Virginia, USA Posts: 334	@Sumsebiene: It depends which DirectShow decoder you're using. It will work with XviD 1.1.0, and ffdshow if you have the "Use overlay mixer" and "Allow output format changes during playback" options checked ("Output" section in ffdshow config). __________________ moitah.net

9th October 2006, 22:49	#451 \| Link
Moitah Registered User Join Date: Feb 2004 Location: Virginia, USA Posts: 334	@Bear: There's not really anything you can do about it. I'll see if there's a better way to handle this for newer versions. @altufaltu: The video is probably corrupt at that location. If you really need it unpacked, I think you're stuck with reencoding. __________________ moitah.net

13th October 2006, 03:01	#455 \| Link
Moitah Registered User Join Date: Feb 2004 Location: Virginia, USA Posts: 334	@eXistenZ_69: The new AVI writing code is used all the time, not just for OpenDML, so it's normal for the files to be different than those written by previous versions. This is due to differences in the structure of the AVI files (padding or other small things) but the video/audio data are the same. __________________ moitah.net

16th September 2006, 09:22	#442 \| Link
ReinerSchweinlin Registered User Join Date: Oct 2001 Posts: 454	Thanx for keeping up the work on this excellent tool!

19th September 2006, 22:37	#445 \| Link
Sumsebiene Registered User Join Date: Aug 2006 Posts: 5	Ok i now answered my question which i had earlier in this thread by myself. Your tool really works ! Great job ! But it just worked with vlc-player for me. Media Player classic and windows media player same goes for winamp don't show the video file in 16:9. So i just changed to vlc player :O Is this the same for you too ? Or with which media players should it work ?

20th September 2006, 11:48	#447 \| Link
Sumsebiene Registered User Join Date: Aug 2006 Posts: 5	ah big thx to you

22nd September 2006, 10:15	#448 \| Link
Bear Registered User Join Date: Oct 2001 Posts: 83	I tried to add packed bitstream for some files, but I got this error message: cannot pack a file with drop frames How can I fix it?

9th October 2006, 09:57	#449 \| Link
altufaltu Registered User Join Date: Oct 2005 Posts: 3	Hi, I get following error with UnpackCL v1.2.1: Loading: 73.7%Error: This is not a valid MPEG-4 video (startcode not found at beginning of frame). The error got shifted to 74.3% when I made another .avi through VirtualDub (direct stream copy). Please help me get rid of this error. Thank you.

9th October 2006, 10:47	#450 \| Link
ReinerSchweinlin Registered User Join Date: Oct 2001 Posts: 454	Maybe your AVI-File needs re-indexing? Just a guess, but try loading it in VD with "extended options" in the "open video file" dialog. then chose re-index. Afterwards save it again usind "direct stream copy". Might help.

10th October 2006, 08:44	#452 \| Link
altufaltu Registered User Join Date: Oct 2005 Posts: 3	Thanks for the help. I ran it through AVIFixed 2.0 b1 and now I get another error: Loading: 98.5%Error: Too many VOPs in a frame. Please help.

10th October 2006, 11:57	#453 \| Link
Bear Registered User Join Date: Oct 2001 Posts: 83	I found the problem. I load the avi in virtualdub, I found some drop frame in the file, after I remove those drop frame, your program can pack the video without problem. Is there any chance your program can handle drop frame as well?

12th October 2006, 22:03	#454 \| Link
eXistenZ_69 Registered User Join Date: Mar 2003 Posts: 87	@Moitah Hi, I upgraded from MPEG4Modifier v1.3.4 to 1.4.2 a few days ago and noticed that unpacking the same avi in both versions results in files with different md5 checksums. The frame lists are identical though. Is this supposed to be like this? Has the non-OpenDML avi writing code been changed? Should I worry? Kind regards, eXistenZ_69

13th October 2006, 18:47	#456 \| Link
eXistenZ_69 Registered User Join Date: Mar 2003 Posts: 87	Ah ok. Hopefully there are no new bugs or player compatibility problems then... Greetz, eXistenZ_69

19th October 2006, 13:13	#457 \| Link
jack3216 Registered User Join Date: Dec 2005 Posts: 6	could you give me the link please to download MPEG4 Modifier v1.3.4

19th October 2006, 13:17	#458 \| Link
ReinerSchweinlin Registered User Join Date: Oct 2001 Posts: 454	check moitah´s sig

19th October 2006, 17:59	#459 \| Link
jack3216 Registered User Join Date: Dec 2005 Posts: 6	i have a video file which is not mpeg4 how can i convert it to use MPEG MODIFIER

19th October 2006, 19:29	#460 \| Link
foxyshadis Angel of Night Join Date: Nov 2004 Location: Tangled in the silks Posts: 9,559	If it's not mpeg4 you can't use it at all. You just re-encode with divx or xvid, setting the options correctly so that you don't need mpeg4 modifier afterward.