Re: [hatari-devel] OS X menu items and shortcuts

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 08/06/2014 22:46, Thomas Huth a écrit :
> Am Sat, 7 Jun 2014 12:52:32 -0500
> schrieb Bob Carpenter <hatari@xxxxxxxxxx>:
>
> > Thomas,
> >
> > Thank you for committing the patch. I downloaded the most recent code
> > and the animation capture/end capture works fine. I was concerned
> > when I received an AVI index error when trying to play the AVI.
> > However, I received the same error when doing the capture through the
> > SDL menu so it is not related to my very small change.
> >
> > Since the AVI files were so huge (20 GB for 3 minutes), I would not
> > have kept them in that format anyway. I simply used VLC to convert
> > the AVI file to M4V format. VLC helpfully offered to recreate the
> > index and everything played perfectly. It also allowed me to play the
> > AVI directly if I used VLC. QuickTime complained about the bad index
> > and only played a few seconds of the video.
>
>   Bob,
>
> as far as I know, AVI files have normally a limit of 4 GB since some
> fields in the header of the AVI file only have a size of 32 bits. So it
> sounds quite "normal" that some programs like Quicktime might refuse
> bigger AVI files. Not sure why your file got so big though, could you
> maybe have a look at your hatari.cfg file to see which value is set in
> the AviRecordVcodec variable?

Hello

many fields in the AVI structure are indeed 32 bit, so 4 GB might be the 
limit, at least for the index part (I think a non indexed avi could be 
bigger than 4 GB).
Maybe there's an extended AVI format with 64 bit values, but it's not 
the one I used (mkv would certainly be a better candidate in that case).

As for the 20 GB filesize, I think it was recorded in BMP format and 
with x2 zooming. In all cases, it is not recommended to use x2 zooming 
when recording video : it wastes cpu and disk space.
Without zooming, you will save some CPU and this might be enough to use 
png recording instead of bmp and save a lot of disk space.

Nicolas