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28th December 2005, 09:11 | #1 | Link |
EphMan
Join Date: May 2004
Posts: 737
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Chapter Import With MuxMan
How can I properly add chapter points using timecodes?
Below is what I have been trying to import from a simple text file called "chapters.txt": ------------------------------------- 00:08:05:819 00:09:06:546 00:15:26:634 00:15:57:832 00:24:37:810 00:25:16:265 00:34:54:509 ------------------------------------- When authored, there are no chapter points. Am I entering the timecodes invalidly? They start just a bit after 8 minutes in, and the last chapter is nearing the 35 min mark. |
28th December 2005, 22:07 | #3 | Link |
EphMan
Join Date: May 2004
Posts: 737
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I tried entering frame numbers the last time I used MuxMan to author a dvd, and it still did not work.
Does the text file with the chapter points have to be imported at a specific time during the authoring? Or do the frame numbers have to fall on an I-frame or something? |
28th December 2005, 22:38 | #4 | Link |
Moderator
Join Date: Oct 2001
Posts: 3,530
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Since the information in the chapter list is needed for the creation of the default navigation, the list must be imported before navigation is created. This happens whenever the project is saved or multiplexed, so import the list prior to saving or running the project.
Chapter points can only be set at the start of a GOP. This is not the same as an I-frame, as closed GOPs (which are quite common) begin with B-frames. MuxMan starts the chapter at the first GOP at or beyond the frame number. Last edited by mpucoder; 28th December 2005 at 22:47. |
28th December 2005, 22:43 | #5 | Link |
Registered User
Join Date: Feb 2005
Posts: 272
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If your timecode were HH:MM:SS:FR (frame) instead of HH:MM:SS:TH (thousandth), you can use PgcEdit's "Celltimes" plugin to convert from timecode to frame numbers and back.
goonix Last edited by goonix; 28th December 2005 at 22:46. |
28th December 2005, 23:48 | #7 | Link | |
Aging Video Hobbyist
Join Date: Dec 2004
Location: Off the Map
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29th December 2005, 06:07 | #8 | Link |
EphMan
Join Date: May 2004
Posts: 737
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Okay, I imported the encoded .mpv into VirtualDubMod, and used the frame numbers it gave me, and saved that as the new chapters.txt.
Although it did work, and the end result did have chapters now, they were all off by many minutes. Why is this? An example is the second chapter was to start around the 8 min 30 sec mark, but starts during the 6 min mark. |
29th December 2005, 07:29 | #9 | Link |
Moderator
Join Date: Oct 2001
Location: Hawaii
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Maybe you got the frame numbers based on 23.976fps? You have to use the pulled down 29.97fps frame count. You can multiply the current ones by 1.25 to get the correct frame numbers.
Last edited by manono; 29th December 2005 at 07:31. |
30th December 2005, 06:05 | #10 | Link | |
EphMan
Join Date: May 2004
Posts: 737
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Quote:
I guess VirtualDubMod removes the pulldown and only lets you view the 23.976 stream. I wonder if there's an option to disable that, so I can get proper frame numbers. |
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30th December 2005, 09:06 | #11 | Link | |
Moderator
Join Date: Oct 2001
Location: Hawaii
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Hi-
I don't believe that VDubMod has that option, but VDub-MPEG-2 does: http://fcchandler.home.comcast.net/stable/ And the ChangeLog for Version 1.6.8 build 23638 (July 4, 2005) says: Quote:
Last edited by manono; 30th December 2005 at 09:08. |
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