[XviD-devel] Bitstream size limit

[Christoph Lampert]

On Sun, 4 May 2003, Dirk Knop wrote:

> Hi all,
> 
> I just got a "bug report" over at doom9's forums  about an avi file (on 
> ntfs)  which is >4GB and is unplayable. Do we have 32 bit counters 
> internally, thus limiting the bitstream size to 4GB, is that the MPEG4 
> standard or what's this all about? ;)

As far as I know, there are no counters that could overflow in XviD or
MPEG-4 at all. After all, it's also intended for streaming, where a stream
could flow for months and years without upper limit on the amount of data.  

Only the AVI-file (index etc.) has 31 or 32 bit limits. I'm pretty
sure that the codec doesn't follow filesize so far. As long a single frame
isn't more than 2**31 bits long, I would rather blame the encoding app.

gruel