[libdv-dev] Re: libdv for AMD64

[Dan D. <da...@de...>]

On Tue, 2004-10-12 at 00:32 -0700, Dean Kolosiek wrote:
> Hello,
> 
> I ported the assembly language of libdv-0.103 to AMD64. I left a copy of it 
> at http://www.users.qwest.net/~kdean6/libdv-0.103-AMD64.tar.gz if you want 
> it. There's no web page for it, just that file, so go directly to it.

I am very happy to announce that this has been committed to CVS with
only a minor build fix. Thank you for the hard work you put into this.

> I also found a bug with multi-threading when I ran 
> enctest.  _dv_prepare_reorder_tables gets called by each thread during 
> initialization, but it's not written to run multiple times. I got 
> segmentation faults at random times because the time slicing was random, 
> but many times it worked fine. I did not try to fix it.

OK, not looked at yet.

> I did not bother translating the use_mmx parts because it is my 
> understanding that AMD64 chips will always have mmx functionality. This 
> should be double-checked, and it may not be true for Intel chips.

I have not yet looked into this either.

> It needs more testing before distribution. I've only tested it with enctest 
> and playdv, and in kino (linking the new code) I played one .avi file made 
> by grabdv. playdv plays the pond.dv example. I'm not really a video person, 
> so I don't know how to come up with tests for it. I'm running it on a 
> Fedora Core 2 x86-64 Opteron system.

I hope now that it is in CVS we can get some testing. I will post a
message to the Kino website to solicit testers.