DGMPGDec 1.4.0 Final! - Page 7

scharfis_brain · 5th June 2005, 18:02

the problem I saw is just this:

PAL-VCD has 352x288 pixels, that need to be streched te 384x288

the table above shows:
1000 0.9375 CCIR601, 625line

but 352 / 0.9375 = 375,7 ???

the same for NTSC-VCD:
352x240 is squeezed to 320x240

the table shows:
1100 1.1250 CCIR601, 525line

352 / 1.125 = 312,9

So I am asking:
what is going on here?

Arachnotron · 5th June 2005, 19:22

Quote:

Originally Posted by Sharfi

PAL-VCD has 352x288 pixels, that need to be streched te 384x288

the table above shows:
1000 0.9375 CCIR601, 625line

but 352 / 0.9375 = 375,7 ???

352x288 PAL VCD has a playback sample rate of 6.75 MHz, so the line length is 352/6.75 = 52.14815 µs. Square pixel 384 x 288 describes only 52 µs. So you need to crop of 2 pixels first before stretching.

Arachnotron · 5th June 2005, 20:40

@Sharfi

This link seems to explain where your 375 came from. I found it amongst the references at the end of this page.

[edit] it seems that somewhere along the way, they *defined* 352 pixels = 384 sq. pixels, even though with the VCD sample of 6.75 rate, 351 pels equals 384 as a sort of compromise to *simplify* things. (note that in this post the PAL acive area is set to 704 13.5 MHz pixels, while that should be 702)

So now there are two sets of values: those based on sample rates and the BT471 4:3 active window of 52 µs x 576 lines and those based on the assumption that the PAL active window is 704x576/352x288

I imagine something similar happend with NTSC.

[edit 2] 0.9375 is based on the (mistaken) assumption that the 720x576 DVD frame maps to a 4:3 area, so equals 768x576. That is of course wrong, it should either be 702x576 (if you want to be exact) or 704x576 (if you follow the compromise above)

Cyberia · 6th June 2005, 00:39

FYI - Here are two links to some very good Aspect Ratio conversion pages:

http://www.mir.com/DMG/aspect.html

http://www.uwasa.fi/~f76998/video/conversion/

neuron2 · 6th June 2005, 05:54

tritical sent a bug fix for the VFAPI support. I also added something. See if you can find it.

http://neuron2.net/dgmpgdec/dgmpgdec140b4.zip

SeeMoreDigital · 6th June 2005, 09:03

Cool....

....what do I win?

Cheers

mp3dom · 6th June 2005, 10:35

I have a problem with the 1.4.x version of DGIndex. I have a 50Mbps MPEG-2 (all I frames) produced with Pinnacle Chrome HD. When I open the 50 Mbps file in DGIndex I have a bad preview (all colors seems to be wrong) and the creation of D2V require a LOT of time (about 5 hours for a 30 min. movie).
This problem doesn't appear with the 1.3.x version (the D2V creation require about 5 min).

neuron2 · 6th June 2005, 14:53

Quote:

Originally Posted by mp3dom

I have a problem with the 1.4.x version of DGIndex. I have a 50Mbps MPEG-2 (all I frames) produced with Pinnacle Chrome HD. When I open the 50 Mbps file in DGIndex I have a bad preview (all colors seems to be wrong) and the creation of D2V require a LOT of time (about 5 hours for a 30 min. movie).
This problem doesn't appear with the 1.3.x version (the D2V creation require about 5 min).

Please upload the file or a portion of the beginning to my FTP server and notify here when it is there. Up to a couple hundred MBytes is fine.

Also, can you fill in the x and tell me exactly which was the first version to exhibit the problem?

Also, please see if it is being incorrectly decoded as MPEG1 by looking at the Profile field of the info dialog during preview. Does it say "[MPEG1]"?

E-Male · 7th June 2005, 20:55

is there a way to add many vob files at once via command line (i mean 100+)?

thx

Cyberia · 7th June 2005, 21:21

Quote:

Originally Posted by E-Male

is there a way to add many vob files at once via command line (i mean 100+)?

thx

RTM. Just a little poking around and you would have solved this for yourself. Read the file "CommandLine.txt" in the directory where you installed DGMPGDec.

Either the -BF or -AIF commands should be what you're looking for.

Admittedly, the information pertaining to DGIndex is scattered around several files/web pages/secret caches/etc. I am working on an actual DGIndex manual that will centralize all this witchcraft into one location.

But still, is "CommandLine.txt" not obvious enough?

E-Male · 7th June 2005, 21:43

in my commandline.txt there only are 2 input options:
-AIF <-- won't work, the filenames aren't 'numbered' enough
-IF <-- won't work either, or can i put 100+ filenames in one command-line

EDIT:
my file was outdated (and the new updates don't contain commandline.txt)
found -BF

neuron2 · 8th June 2005, 01:40

Quote:

Originally Posted by E-Male

my file was outdated (and the new updates don't contain commandline.txt)

The beta releases don't include all the documents. Go back to the last released version; in this case, 1.3.0. Sorry for the inconvenience.

neuron2 · 8th June 2005, 01:43

Quote:

Originally Posted by mp3dom

I have a problem with the 1.4.x version of DGIndex.

Are you still there? I'm getting a release package together and I'm really keen to get this issue resolved before the next release. I responded to your post with a query for some further information (see several posts above). Thank you.

SCIF · 8th June 2005, 02:50

neuron2, update link for DGMPEGDec 1.4.0 beta 4 at your home page.
Thanks for your great work.

neuron2 · 8th June 2005, 03:47

Quote:

Originally Posted by SCIF

neuron2, update link for DGMPEGDec 1.4.0 beta 4 at your home page.
Thanks for your great work.

Thanks for the pointer, but I don't update the home page until I'm reasonably confident of the stability. You Doom9'ers are the guinea pigs. Right now, I'm waiting for mp3dom to elaborate on his problem, because if it's true, it is a big deal.

E-Male · 8th June 2005, 10:16

Quote:

Originally Posted by neuron2

The beta releases don't include all the documents. Go back to the last released version; in this case, 1.3.0. Sorry for the inconvenience.

i now have 1.3.0 and beta 4 copied over it
thx

neuron2 · 9th June 2005, 03:06

I've now reached feature cutoff for 1.4.0 with this beta. This version adds the following changes:

* The integrated DGParse info now shows the GOP structure.

* Fixed a bug such that during preview the info dialog did not show the audio track information for transport streams and PVA streams.

* The Detect PIDs dialog now has a "Done" button.

http://neuron2.net/dgmpgdec/dgmpgdec140b5.zip

Now we are in bug fixing mode only for 1.4.0. So pound away!

neuron2 · 10th June 2005, 04:00

This beta fixes mp3dom's reported bug.

http://neuron2.net/dgmpgdec/dgmpgdec140b6.zip

Everybody should get this correction because b5 is significantly broken. I've also corrected the D2V format document after Cyberia pointed out several problems in it.

Thanks mp3dom for catching this bug, and Cyberia for the corrections.

neuron2 · 11th June 2005, 16:23

This one fixes some bugs in the integrated Parse D2V feature, and enhances it to properly show the effect of the field operations.

http://neuron2.net/dgmpgdec/dgmpgdec140b7.zip

len0x · 12th June 2005, 18:38

Does current version open DAT files (VCD) directly without renaming to mpg extension?
(I'd try myself but don't have any VCDs at hand).

5th June 2005, 18:02	#121 \| Link
scharfis_brain brainless Join Date: Mar 2003 Location: Germany Posts: 3,484	the problem I saw is just this: PAL-VCD has 352x288 pixels, that need to be streched te 384x288 the table above shows: 1000 0.9375 CCIR601, 625line but 352 / 0.9375 = 375,7 ??? the same for NTSC-VCD: 352x240 is squeezed to 320x240 the table shows: 1100 1.1250 CCIR601, 525line 352 / 1.125 = 312,9 So I am asking: what is going on here? __________________ Don't forget the 'c'! Don't PM me for technical support, please.

5th June 2005, 20:40	#123 \| Link
Arachnotron Alias fragger Join Date: Jul 2003 Location: the Netherlands Posts: 863	@Sharfi This link seems to explain where your 375 came from. I found it amongst the references at the end of this page. [edit] it seems that somewhere along the way, they defined 352 pixels = 384 sq. pixels, even though with the VCD sample of 6.75 rate, 351 pels equals 384 as a sort of compromise to simplify things. (note that in this post the PAL acive area is set to 704 13.5 MHz pixels, while that should be 702) So now there are two sets of values: those based on sample rates and the BT471 4:3 active window of 52 µs x 576 lines and those based on the assumption that the PAL active window is 704x576/352x288 I imagine something similar happend with NTSC. [edit 2] 0.9375 is based on the (mistaken) assumption that the 720x576 DVD frame maps to a 4:3 area, so equals 768x576. That is of course wrong, it should either be 702x576 (if you want to be exact) or 704x576 (if you follow the compromise above) Last edited by Arachnotron; 5th June 2005 at 21:15.

6th June 2005, 05:54	#125 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,633	Version 1.4.0 Beta 4 tritical sent a bug fix for the VFAPI support. I also added something. See if you can find it. http://neuron2.net/dgmpgdec/dgmpgdec140b4.zip

6th June 2005, 09:03	#126 \| Link
SeeMoreDigital Life looks better in HDTV Join Date: Jun 2003 Location: UK Posts: 10,008	Cool.... ....what do I win? Cheers __________________ Still confused about anamorphic images? Then look here! \| Main Encoding Interests: Hardware device playback \| My Gear \|

7th June 2005, 21:43	#131 \| Link
E-Male mad computer-scientist Join Date: Mar 2002 Posts: 1,377	in my commandline.txt there only are 2 input options: -AIF <-- won't work, the filenames aren't 'numbered' enough -IF <-- won't work either, or can i put 100+ filenames in one command-line EDIT: my file was outdated (and the new updates don't contain commandline.txt) found -BF Last edited by E-Male; 7th June 2005 at 21:46.

6th June 2005, 00:39	#124 \| Link
Cyberia Moderator Join Date: Nov 2002 Location: Inside Posts: 718	FYI - Here are two links to some very good Aspect Ratio conversion pages: http://www.mir.com/DMG/aspect.html http://www.uwasa.fi/~f76998/video/conversion/

6th June 2005, 10:35	#127 \| Link
mp3dom Registered User Join Date: Jul 2003 Posts: 209	I have a problem with the 1.4.x version of DGIndex. I have a 50Mbps MPEG-2 (all I frames) produced with Pinnacle Chrome HD. When I open the 50 Mbps file in DGIndex I have a bad preview (all colors seems to be wrong) and the creation of D2V require a LOT of time (about 5 hours for a 30 min. movie). This problem doesn't appear with the 1.3.x version (the D2V creation require about 5 min).

7th June 2005, 20:55	#129 \| Link
E-Male mad computer-scientist Join Date: Mar 2002 Posts: 1,377	is there a way to add many vob files at once via command line (i mean 100+)? thx

8th June 2005, 02:50	#134 \| Link
SCIF AMD fan Join Date: Jan 2005 Location: Russia, Vladivostok Posts: 49	neuron2, update link for DGMPEGDec 1.4.0 beta 4 at your home page. Thanks for your great work.

9th June 2005, 03:06	#137 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,633	Version 1.4.0 beta 5 I've now reached feature cutoff for 1.4.0 with this beta. This version adds the following changes: * The integrated DGParse info now shows the GOP structure. * Fixed a bug such that during preview the info dialog did not show the audio track information for transport streams and PVA streams. * The Detect PIDs dialog now has a "Done" button. http://neuron2.net/dgmpgdec/dgmpgdec140b5.zip Now we are in bug fixing mode only for 1.4.0. So pound away!

10th June 2005, 04:00	#138 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,633	1.4.0 beta 6 This beta fixes mp3dom's reported bug. http://neuron2.net/dgmpgdec/dgmpgdec140b6.zip Everybody should get this correction because b5 is significantly broken. I've also corrected the D2V format document after Cyberia pointed out several problems in it. Thanks mp3dom for catching this bug, and Cyberia for the corrections.

11th June 2005, 16:23	#139 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,633	1.4.0 beta 7 This one fixes some bugs in the integrated Parse D2V feature, and enhances it to properly show the effect of the field operations. http://neuron2.net/dgmpgdec/dgmpgdec140b7.zip

12th June 2005, 18:38	#140 \| Link
len0x I'm afraid we've to stop Join Date: Mar 2003 Location: Amongst mad people Posts: 5,402	Does current version open DAT files (VCD) directly without renaming to mpg extension? (I'd try myself but don't have any VCDs at hand). __________________ Gordian Knot Family: Gordian Knot: website, download Auto Gordian Knot: Website and download, tutorial, FAQ

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