[vdr] Re: vdr / change MaxVideoFileSize > 2000MB

[Matthias Schniedermeyer <ms@citd.de>]

On Thu, Jul 11, 2002 at 09:37:23AM +0200, Rienecker, Fa. Evenio, ITS P, M wrote:
> There was a thread some time ago seriously discussing the pros and cons of this topic.
> 
> In short:
> The index.vdr file format has 4 bytes to store file positions. As does vdr itself.
> While the latter might be changed seamlesly the former would require a change of file formats to support files > 2GB.
> Actually, there will be no advantage compared to the current situation having large file support.

So far thats correct. But you could "missuse" the file-field for another
8 bits. So you could create 512MB files.

This way you don't have to change index.vdr format and still be able to
get files bigger than 2GB. (With unsigned. You could get 1TB files)

And if i'm not wrong than there are another 2 "unused" Bytes. (At least
in "Stone old" VDR they seam to be unused)
8 Bytes per Frame:
4 Bytes offset
1 Byte file
1 Byte Frame-type
2 Bytes "fill"?

With the 2 Bytes you could get
a) 32768/65336 TB
or if you don't use "file" and only this 2 Bytes
b) 128/256 TB

Think that should be enough for the next few years. :-)




Bis denn

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