RE: [Linux] RE: [iPAQ] MPEG Video

        Thanks for the info, I have tried out several apps that use these
libraries. This is what things like xtheater and xanim use, and the
applications end up being quite big (not a good things for the iPAQ), with
some frame types not supported, plus the existing apps don't support audio
(at least that I have found). dvdview has good performance on StrongArm,
just relies on basic system libraries, and seems to support all MPEG frame
types. I think the SDL and smpeg libraries provide a superset of what is
needed for an MPEG video player.

-----Original Message-----
From: Derrell Lipman [mailto:Derrell.Lipman@UnwiredUniverse.com]
Sent: Friday, October 27, 2000 1:13 PM
To: Lawler, Tom
Cc: 'Erik Mouw'; 'linux@handhelds.org'; 'ipaq@handhelds.org'
Subject: Re: [Linux] RE: [iPAQ] MPEG Video

Try SDL (www.libsdl.org) and smpeg (referenced from there). SDL
provides both video and sound support, and smpeg which uses SDL does
as well. If I recall, however, the current version doesn't yet
provide synchronization between the sound and video.

Derrell

"Lawler, Tom" <Tom.Lawler@compaq.com> writes:

> Erik
> I have tried many different players, including dvdview, xtheater,
> xanim, and mp2dec (from the PocketLinux site, I believe this is
> mpeg2decode), and they all seem to do reasonably well with small 1/4
screen
> mpegs, but not so good with full screen (320x240) mpegs. The good thing
> about dvdview is it has audio support, which many of the other players do
> not have, so this seems like a good one to look at some more.
>
> Tom
>
> -----Original Message-----
> From: Erik Mouw [mailto:J.A.K.Mouw@ITS.TUDelft.NL]
> Sent: Friday, October 20, 2000 1:54 AM
> To: Lawler, Tom
> Cc: 'linux@handhelds.org'; 'ipaq@handhelds.org'
> Subject: Re: [iPAQ] MPEG Video
>
>
> On Thu, Oct 19, 2000 at 04:49:58PM -0500, Lawler, Tom wrote:
> > I have MPEG videos running at good frame rates on the iPAQ using
> > Video4Linux. It is currently writing directly to the frame buffer, and
> the
> > particular mpegs I have don't have audio. I'll be looking more at
> > Video4Linux to see about audio capabilities and co-existing with X, then
> > I'll package something up and make it available.
>
> What MPEG decoder are you using? We recently tried dvdview on the LART
> and were impressed by its performance. We didn't try mpeg2decode,
> because it only knows about 8bpp pseudocolor visuals and we didn't have
> time to hack a truecolor version.
>
> The nice thing about dvdview is that it doesn't use floating point, so
> it is very fast on a StrongARM CPU. Unfortunately it still needs some
> hacking, because the author crippled GNU autoconf+automake in such a
> way that it generates perfect makefiles for ix86 + gcc-2.7.2, but not
> for SA11x0 + gcc-2.95.2. Have a look at:
>
> http://rachmaninoff.ti.uni-mannheim.de/dvdview/
>
>
> Erik
>
> --
> J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
> of Electrical Engineering, Faculty of Information Technology and Systems,
> Delft University of Technology, PO BOX 5031, 2600 GA Delft, The
Netherlands
> Phone: +31-15-2783635 Fax: +31-15-2781843 Email:
J.A.K.Mouw@its.tudelft.nl
> WWW: http://www-ict.its.tudelft.nl/~erik/
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Received on Fri Oct 27 16:14:24 2000