DGMPGDec 1.4.3 Final! - Page 5

neuron2 · 24th August 2005, 14:29

Quote:

Originally Posted by midnightsun

would it be possible for dgindex to have the capability to write a .txt-like file of all the I-frames positions in a given video stream? Some sort of "parse .D2V and write I-frames' positions" option

Tools/Parse D2V already makes this information available, e.g.:

[GOP]
15 [B]: 15,15...................2
16 [B]: 16,16...................2
17 [I]: 17,17...................2
18 [B]: 18,18...................2
19 [B]: 19,19...................2
20 [P]: 20,20...................2
21 [B]: 21,21...................2
22 [B]: 22,22...................2
23 [P]: 23,23...................2
24 [B]: 24,24...................2
25 [B]: 25,25...................2
26 [P]: 26,26...................2
27 [B]: 27,27...................2
28 [B]: 28,28...................2
29 [P]: 29,29...................2
[GOP]
30 [B]: 30,30...................2
31 [B]: 31,31...................2
32 [I]: 32,32...................2
33 [B]: 33,33...................2
34 [B]: 34,34...................2
35 [P]: 35,35...................2

If you are looking for the specific output format you've given, then you could write a simple utility to generate it from the Parse D2V output, for example (using 'awk'). What is the motivation?

zettai · 25th August 2005, 03:13

I'm getting blocking when decoding a vob file using RC1 for making the d2v and decoding using avisynth 2.5.5

I've uploaded a demuxed section which should show the problem on frame 150 or so. Look for file VTS_28_PGC_01_1.demuxed.m2v on the ftp to confirm. This problem doesnt appear when using virtualdubmod to load the m2v.

I dont know if this is also a problem with older versions of dgindex yet.

Esc · 25th August 2005, 04:06

Hi Donald,
I have a problem with RC1. If I drag the scroller with mouse, the information window is closed. I really hope it's not a new feature.

Thanks for the great work!

neuron2 · 25th August 2005, 04:36

Quote:

Originally Posted by Esc

Hi Donald,
I have a problem with RC1. If I drag the scroller with mouse, the information window is closed.

Yes, it's a new feature. The information is intended to be valid only during a play/preview operation. What were you using it for?

neuron2 · 25th August 2005, 04:52

Quote:

Originally Posted by zettai

I'm getting blocking when decoding a vob file using RC1 for making the d2v and decoding using avisynth 2.5.5

I've uploaded a demuxed section which should show the problem on frame 150 or so. Look for file VTS_28_PGC_01_1.demuxed.m2v on the ftp to confirm. This problem doesnt appear when using virtualdubmod to load the m2v.

I see that the first two frames are bad because the stream claims that the first GOP is closed but it isn't. If it was properly marked as open, then they would be replaced with the first decodable frame. VirtualDub MPEG2 just discards those frames.

But I don't see any blocking at or around frame 150. Please give me your script and tell me the exact frame number. Also give me the DGIndex settings. I'm not reproducing the problem. A screenshot of the blocking would be useful, too.

neuron2 · 25th August 2005, 05:25

Quote:

Originally Posted by zettai

I'm getting blocking when decoding a vob file using RC1 for making the d2v and decoding using avisynth 2.5.5.

The problem is that every GOP is marked as closed when they aren't. Did you rip this directly off a commercial DVD? I need to know the origin of this VOB before deciding what to do. Is it something you encoded and erroneously forced the setting of the closed GOP flag?

Technical note: If the GOPs are closed, DGDecode doesn't need to decode the previous GOP when trying to decode randomly-accessed leading B frames. But your stream has leading B frames that require the previous GOP, but the GOPs are marked as closed. So strictly it is a bad stream. I could work around it by always assuming GOPs are open, but that would degrade responsiveness of random access.

This problem is present in previous versions because it is in fact a stream problem.

Note that this affects only random access; it doesn't occur if you just play linearly from the start, so your encodes will be OK.

Finally, it's possible to edit the D2V file to make it work (clear the bits that say the frames don't require the previous GOP). It might be worth adding a utility to do that.

zettai · 25th August 2005, 12:34

It's a commercial DVD I'm afraid. Plus, I actually need to be able to view this with random access if at all possible as I'm editing it in a NLE. I'd be happy to hack the d2v file if that will fix the problem.

neuron2 · 25th August 2005, 15:01

OK. I'll add a new entry to the option menu tonight and release a new RC.

Esc · 25th August 2005, 15:03

Quote:

Originally Posted by neuron2

Yes, it's a new feature. The information is intended to be valid only during a play/preview operation. What were you using it for?

Those PGC numbers are very handy for tracing anime episodes that are recorded as 1 program. I would slide the scroller looking at them. And if I see 1-3, 1-4, etc., then I am still on ep1. If they have switched to 2-1, 2-2, it's time to stop and go back. Eventually I zero out on the moment where first 1 becomes 2 and it's the best place to cut off the first episode. I mark this point as the end of selection, make my d2v and continue with the second ep, and so on.
Why don't you just blank the incorrect information at the time of scrolling? Isn't that what you used to do in earlier versions, anyway?

neuron2 · 25th August 2005, 15:46

@zettai

Try Version 1.4.1 RC2:

http://neuron2.net/dgmpgdec/dgmpgdec141rc2.zip

Set the "Force Open GOPs in D2V File" option before saving your project.

neuron2 · 25th August 2005, 16:07

Quote:

Originally Posted by Esc

Those PGC numbers are very handy for tracing anime episodes that are recorded as 1 program.

Would you be happy if that information appeared in the DGIndex window's title bar?

Esc · 25th August 2005, 16:21

Quote:

Originally Posted by neuron2

Would you be happy if that information appeared in the DGIndex window's title bar?

I just need the information. I don't care where does it come from as long as it's usable.

How about using status bar instead, btw?

neuron2 · 25th August 2005, 21:13

Quote:

Originally Posted by Esc

I just need the information. I don't care where does it come from as long as it's usable.

I'm going to pretend that you said "That would be fine. Thank you very much."

Esc · 25th August 2005, 21:49

THANK YOU A GREAT BUNCH! Your work is valuable beyond all limits. DGIndex is one of the most useful utilities in video processing and I praise your talent and dedication every time I open it. I had no intention of offending you since I fully comprehend the fact that your work is one hundred percent voluntary and unrewarded.
I humbly suggest using status bar though. But only because I think it would look cooler and not overcrowd the title bar. Of course, if it is not too much bother.

neuron2 · 26th August 2005, 05:29

What have we here?

* New DGIndex users manual created by Cyberia.

* VOB/CELL IDs now displayed in the title bar.

* Log quant matrices menu item moved to Options.

Thank you Cyberia, for the great users manual!

http://neuron2.net/dgmpgdec/dgmpgdec141rc3.zip

Zep · 26th August 2005, 08:58

Quote:

Originally Posted by neuron2

All the users who kindly provide feedback need to be acknowledged too.

You're just in time for 141RC1. Avery (phaeron) told me how to reliably play back at real time rate in a relatively easy way (no messy threads and thread sync).

Avery is helping out now too? wow you have one heck of good team i must say

What is funny I DL a new version come back 2 days later and there is a
newer version. I can't keep up! (that is a VERY good thing lol )

Thx

SeeMoreDigital · 26th August 2005, 10:33

Quote:

Originally Posted by Zep

Avery is helping out now too? wow you have one heck of good team i must say

Agreed.... I use DGindex all the time for my part-time projects... I don't know where I'd be without it...

Many, many, thanks guys

zettai · 26th August 2005, 12:48

Just to let you know, my problems are now fixed with the new GOP options. Thanks!

neuron2 · 26th August 2005, 13:59

Quote:

Originally Posted by Zep

Avery is helping out now too?

Not formally as in contributing code. I had posted at the VirtualDub forum asking how he achieved playback pacing in VirtualDub, and he responded with some valuable ideas. Here is the posting for those interested to see it:

http://forums.virtualdub.org/index.p...ST&f=11&t=9985

Cyberia · 26th August 2005, 14:52

Quote:

Originally Posted by neuron2

Thank you Cyberia, for the great users manual!

Gonna make me blush.

Thank YOU for the great work!

25th August 2005, 15:46	#90 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,635	Version 1.4.1 RC 2 @zettai Try Version 1.4.1 RC2: http://neuron2.net/dgmpgdec/dgmpgdec141rc2.zip Set the "Force Open GOPs in D2V File" option before saving your project.

26th August 2005, 05:29	#95 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,635	Version 1.4.1 RC 3 with DGIndex User Manual! What have we here? * New DGIndex users manual created by Cyberia. * VOB/CELL IDs now displayed in the title bar. * Log quant matrices menu item moved to Options. Thank you Cyberia, for the great users manual! http://neuron2.net/dgmpgdec/dgmpgdec141rc3.zip

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25th August 2005, 03:13	#82 \| Link
zettai Fascinated Lurker Join Date: Feb 2002 Location: Durham, UK Posts: 237	I'm getting blocking when decoding a vob file using RC1 for making the d2v and decoding using avisynth 2.5.5 I've uploaded a demuxed section which should show the problem on frame 150 or so. Look for file VTS_28_PGC_01_1.demuxed.m2v on the ftp to confirm. This problem doesnt appear when using virtualdubmod to load the m2v. I dont know if this is also a problem with older versions of dgindex yet.

25th August 2005, 04:06	#83 \| Link
Esc Registered User Join Date: Jan 2005 Posts: 69	Hi Donald, I have a problem with RC1. If I drag the scroller with mouse, the information window is closed. I really hope it's not a new feature. Thanks for the great work!

25th August 2005, 12:34	#87 \| Link
zettai Fascinated Lurker Join Date: Feb 2002 Location: Durham, UK Posts: 237	It's a commercial DVD I'm afraid. Plus, I actually need to be able to view this with random access if at all possible as I'm editing it in a NLE. I'd be happy to hack the d2v file if that will fix the problem.

25th August 2005, 15:01	#88 \| Link
neuron2 _ Join Date: Jan 2002 Posts: 16,635	OK. I'll add a new entry to the option menu tonight and release a new RC.

25th August 2005, 21:49	#94 \| Link
Esc Registered User Join Date: Jan 2005 Posts: 69	THANK YOU A GREAT BUNCH! Your work is valuable beyond all limits. DGIndex is one of the most useful utilities in video processing and I praise your talent and dedication every time I open it. I had no intention of offending you since I fully comprehend the fact that your work is one hundred percent voluntary and unrewarded. I humbly suggest using status bar though. But only because I think it would look cooler and not overcrowd the title bar. Of course, if it is not too much bother.

26th August 2005, 12:48	#98 \| Link
zettai Fascinated Lurker Join Date: Feb 2002 Location: Durham, UK Posts: 237	Just to let you know, my problems are now fixed with the new GOP options. Thanks!