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Chanito Newbie

Joined: 24 Sep 2004 Posts: 6
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Posted: Sat Sep 25, 2004 9:47 pm Post subject: Cells commands |
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I have a couple of questions. I've been experimenting with cell commands but I'm a bit disappointed with them because I found out that they only execute if you reach the end of the chapter at normal speed, if you skip to the next chapter or reach the end of the chapter fast forwarding they don't get called... is this correct? My other doubt, is: what does the restricted checkbox in the cell properties mean? And a third question now that I'm on it... I noticed very often the VMGR Root Menu or the Autoplay, or other menus for that matter start with something like: if (R[1] == R[0]) Link PGC 2 otherwise they start the first program in the current PGC. My doubt, is, in tracing the sequence of things from the Autoplay these registers are never given an initial value, R[0] is almost never given any value, just used in comparisons. Am I correct in assuming all of them have a default initial value of 0, or where are they defined? I'm sorry if this has been answered before, I searched for it but couldn't find anything. Thanks!  |
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MackemX DVD Specialist
Joined: 10 Nov 2003 Posts: 815
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Posted: Tue Sep 28, 2004 3:36 pm Post subject: |
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| Chanito wrote: | | And a third question now that I'm on it... I noticed very often the VMGR Root Menu or the Autoplay, or other menus for that matter start with something like: if (R[1] == R[0]) Link PGC 2 otherwise they start the first program in the current PGC. My doubt, is, in tracing the sequence of things from the Autoplay these registers are never given an initial value, R[0] is almost never given any value, just used in comparisons. Am I correct in assuming all of them have a default initial value of 0, or where are they defined? | I think they all start at 0 by default but I'm not 100% sure as for the restricted cell, all I've ever seen was is that it stops trick play http://dvd.sourceforge.net/dvdinfo/pgc.html |
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Mirx Respected Member

Joined: 17 Apr 2004 Posts: 696
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Posted: Tue Sep 28, 2004 6:13 pm Post subject: |
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| Yes, default value is 0 |
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Chanito Newbie

Joined: 24 Sep 2004 Posts: 6
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Posted: Wed Sep 29, 2004 2:23 pm Post subject: |
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| Thanks Mirx. Any clue of what trick play means ? |
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Mirx Respected Member

Joined: 17 Apr 2004 Posts: 696
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Posted: Wed Sep 29, 2004 4:32 pm Post subject: |
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| http://www.eetasia.com/ARTICLES/1999JAN/1999JAN01_ID_DSP_MSD_EMS_TA.PDF Trick play is a term used for a intelligent way of handling disc content. It is used for seamless palyback and that sort of routines. When you reach a section where you get multiple routes, the "disc" already pre-loads a small section of all possibilities, so that a choice of a route will seem seamless. |
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