View Full Version : Add GOP timecode option in 490
September 24th, 2006, 05:32 PM
Announcement for 490 has ...
490 - Enhance: Added Shift+Tools>Options, "Add GOP Timecode to all GOPs" to add GOP header time codes to GOPs which don't have them.
Sounds useful. Why is the default 'false'? It would seem that accuracy is always preferred so why not set this to 'true'?
I'm guessing the reason has to do with why the option is hidden from the normal 'tools>options' and requires a secret decoder ring that tells you to use the 'shift' key. :)
September 24th, 2006, 06:02 PM
It has nothing to do with accuracy. Each GOP can have an optional GOP header with a timecode block in it. Most MPEG files already have it, but some don't. A couple users reported that some downstream applications required this block and were having problems on source files that didn't contain it.
Since VideoReDo already updates existing GOP headers with the correct time code, we simply added the code to add such a header if it didn't exist.
The reason its on the "super secret" page is that a release is right around the corner and we didn't want to have to fully test and document it. By making it FALSE, for now, only users who need it will set it to true and other users won't be affected. Assuming it works OK, we will add it to the Tools>Options>Stream page in a subsequent release.
September 24th, 2006, 08:25 PM
..and besides, there are hundeds (hopefully thousands) of us rabid users who have been running VRD for years and it never mattered for us.
September 25th, 2006, 06:29 PM
I have run a couple of projects using this option and it appears to work quite well.
One of them seemed to have an issue though where the VS10 package was still a bit sluggish in seeking in the file and also jumped quite a bit when I expected just one I frame step.
Consider this a heads up rather than a bug report. It certainly helps to have this function included.
If I find this kind of behaviour is common I will try to determine what is going on and make a more formal report about it.
Thanks for the prompt inclusion of this feature! :)
September 25th, 2006, 06:36 PM
Glad to help out. Keep us posted if you see any issues.
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