MuxMan problem (non-existant scene) [Archive]

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ripaholic

29th December 2005, 14:45

I'm using this guide to add subtitles to Lost Highway R2:
http://forum.videohelp.com/viewtopic.php?t=275603

Everything goes fine until just before the end MuxMan gives this error: Reference to non-existant scene "Segment_1_scn51" from PGC "VTS01_TTL01_PGC1".
When I open the ripped unedited dvd with VobBlanker, it shows that there is 51 cells, but only 50 Prg and Cha. Could this cause the problem and is there anything I can do get around this?

Thanks,
ripaholic

goonix

29th December 2005, 15:32

@ripaholic

The entries in Celltimes.txt should point to programs, not cells.
Open your original DVD in PgcEdit and compare the chapters of the main movie with Celltimes.txt. Then delete the wrong line in Celltimes.txt.

Maybe its the last one, if you have accidentally checked the "Include end time" check box in PgcDemux.

goonix

mpucoder

29th December 2005, 16:43

Maybe its the last one, if you have accidentally checked the "Include end time" check box in PgcDemux.
This is the usual reason, or the chapter list was created by IfoEdit or another program that adds the total number of frames as the last line.

krosswindz

19th June 2008, 06:21

I am facing a similar error

Reference to non-existant scene "Segment_1_scn25" from PGC "VTS01_TTL01_PGC1".

I opened the original DVD using PGCedit. I opened the PGC of the main movie exported the cell times with the following options:

Offset 0 frames
Output only programs
Output frame numbers (Muxman,IfoEdit)

Any Idea how I might be able to fix this. any help appreciated.

krosswindz

19th June 2008, 07:17

My celltimes.txt

PGCEdit:

15844
23882
37579
48770
60827
67013
75053
89950
107295
120321
137601
144718
147024
167034
177766
192539
210966
216455
229474
243118
267489
276766
301517
310633
317321

from pgcdemux

15844
23882
37579
48770
60827
67013
75053
89950
107295
120321
137601
144718
147024
167034
177766
192539
210966
216455
229474
243118
267489
276766
301517
310633
317321

krosswindz

19th June 2008, 19:53

PGCEdit shows 25 Programs 25 Chapters and 26 Cells. The main movie has 24 Chapters in its menu. Muxman keeps giving me the following error:

Reference to non-existant scene "Segment_1_scn25" from PGC "VTS01_TTL01_PGC1".

If I remove the last entry of celltimes.txt it works fine but the last chapter does not work. I am not sure what the problem is. Any help solving this problem is appreciated.

Main movie pgc program/cells PGCEdit shows the following.

http://img367.imageshack.us/img367/3383/pgceditcp2.jpg

frank

19th June 2008, 19:55

krosswindz

19th June 2008, 20:26

Delete the last cell time.
Muxman has a problem with the last cell when there is only one GOP (12/15 frames, 0.5 s).
This last short chapter is for jumping to the end of title.
Later you can add a black cell with PgcEdit.

Its a bug.

When I used PGCDemux it gave me 26 cell times, then I exported using PGCEdit exporting only programs gave me 25 cell times. When I use the new cell times with 25 cell times I get the same error. When I remove the last line I am able to mux it but my last chapter doesnt work.

vav

22nd June 2008, 00:03

My celltimes.txt

PGCEdit:

15844
23882
...
...
...
...
...
...
...
...
317321

the bug mentioned before is indeed the problem, not the number of cells vs. programs or chapters. if you want to replicate the same strcuture of your existing dvd, then export cells, but remember to change correct cell to 'cell' only, not a program, so you'll have 26 cells but 25 chapters/programs.
anyway - the alst cell (being 00:00:00.15) is the problem. what I do is manually change celltimes.txt last line by reducing 25 frames (for PAL) or 30 (for NTSC) from the last number. in your example I'd write instead of 317321 --> 317291 (assuming NTSC). that should solve the problem without really changing navigation (last chapter will jump to a position 1 sec earlier than before...).
Good luck.

frank

24th June 2008, 21:04

As said, delete the last chapter index.
Mux.
Import/replace title in PgcEdit and Create new cell.
Check cell commands.

It works perfectly!

krosswindz

26th June 2008, 06:44

As said, delete the last chapter index.
Mux.
Import/replace title in PgcEdit and Create new cell.
Check cell commands.

It works perfectly!

Thanks I will try that out in the same DVD and report back.

Susana

26th June 2008, 10:20

Sorry but there is no bug in muxman. The problem is not a GOP, Cell, Program related one; the problem is dummy cells or demux error in non-contiguous cells. For some reason, some authoring programs include a dummy cell/non-contiguous cell as the last cell (I also remember to have seen a/some PGC opening dummy cell/s).

In that cell, when demuxed, there is no video and muxman is unable to insert there a new chapter.

For example:

http://img57.imageshack.us/img57/6163/snap1pv2.gif

Celltimes.txt:
300 --> start cell 2
..
..
159388 --> start cell 25
164453 --> start cell 26

video frames:
http://img57.imageshack.us/img57/9694/snap1rv1.gif

last frame is 164450 < start cell 26

It's a ntsc dvd: pgcdemux -> dgindex (honor pulldown flags) -> avisynth -> vdubmod. There are 2 pgc's, and the main feature (pgc#1) last cell is the pgc#2 second cell:
pgc1c1 pgc1c2 ... pgc1c25 pgc2c1 pgc2c2/pgc1c26

A counter-argument:

http://img70.imageshack.us/img70/3789/snap1hd8.gif

Celltimes.txt:
15850 --> start cell 2
36285 --> start cell 3
40874 --> start cell 4

video frames:
http://img166.imageshack.us/img166/8295/snap1eb3.gif

last frame is 40874 = start cell 4

http://img80.imageshack.us/img80/5693/snap1bk5.gif

krosswindz

24th July 2008, 12:05

^ what would be the correct way to solve this problem. If it isnt removing the last cell or reducing it, what should one do?

krosswindz

24th July 2008, 12:35

All this while I have always got errors with missing scene towards the end. This time I am getting it right at the start saying:

Reference to non-existant scene "Segment_1_scn4" from PGC "VTS01_TTL01_PGC1".

I would really appreciate it if someone could help me fix the celltimes.txt that I use for input of muxman.

pgcdemux celltimes.txt

12
24
36
15213
32088
38230
49117
60297
66878
72614
84053
92177
102707
113334
118745
127974
139072
153697
163155
177682
193119
196222
209157
221150
228121
236311
249945
262571
271817
279260
292048

pgcedit celltimes.txt outputing only programs

15213
32088
38230
49117
60297
66878
72614
84053
92177
102707
113334
118745
127974
139072
153697
163155
177682
193119
196222
209157
221150
228121
236311
249945
262571
271817
279260
292048

pgcedit chapter listing
http://img172.imageshack.us/img172/7825/pgcedituy1.jpg

Sir Didymus

24th July 2008, 17:18

... what would be the correct way to solve this problem. If it isnt removing the last cell or reducing it, what should one do?

Who say the correct way is not to remove the last cell?

The reply from frank and Susana above are both clear and very detailed on the matter...

Concerning your last post, as you can see from the PgcEdit screenshot, you have a number of cells with different VOB IDs (1 and 2) respect to the VOB ID of the main feature (3). The second and the third cells are reused. There are also a couple of cell commands, evidencing (or residual from) some protection schemes.

Demux the original with PgcDemux by VOB ID (not by Pgc) and you will get the assets (video, audio, celltimes) ready for a straight reauthoring based on MuxMan. The "problem" of the last cell will still be present, but you can then apply the suggestions already provided.

Cheers,
SD

krosswindz

24th July 2008, 18:10

Who say the correct way is not to remove the last cell?

The reply from frank and Susana above are both clear and very detailed on the matter...

Concerning your last post, as you can see from the PgcEdit screenshot, you have a number of cells with different VOB IDs (1 and 2) respect to the VOB ID of the main feature (3). The second and the third cells are reused. There are also a couple of cell commands, evidencing (or residual from) some protection schemes.

Demux the original with PgcDemux by VOB ID (not by Pgc) and you will get the assets (video, audio, celltimes) ready for a straight reauthoring based on MuxMan. The "problem" of the last cell will still be present, but you can then apply the suggestions already provided.

Cheers,
SD

The reason i said this was the first thing i did was to remove the last cell and use muxman and I got the same error again.

Reference to non-existant scene "Segment_1_scn4" from PGC "VTS01_TTL01_PGC1".

The way I normally do my backup is

PGCdemux using pgc -> create avs script -> encode using HC Encoder -> muxman -> vob blanker etc.

If I use VOB IDs for demuxing would it change the way I encode the back up.

Sir Didymus

24th July 2008, 20:06

You have to get rid of the useless cells if you want to perform the authoring using MuxMan.

For the specific compilation you have posted, you may do:

PGCdemux using VOB ID -> create avs script -> encode using HC Encoder -> muxman -> PgcEdit to recreate the exact same DVD structure of the original -> vob blanker etc.

Or, in general:

PgcEdit to get rid of the useless cells -> PGCdemux using PGC -> create avs script -> encode using HC Encoder -> muxman -> PgcEdit to recreate the exact same DVD structure of the original -> vob blanker etc.

krosswindz

24th July 2008, 20:32