[Mplayer-dev-eng] MPlayer on IRIX ... (fwd)

[Arpi]

Hi,

> > Yes, it's very easy. Just diff mpeg2_internal.h and headers.c, you'll
> > see what i changed. They (bitrate and repeat_field flags) are required
> With which libmpeg2-version ? :-) (It has changed quite a bit in the last
> time)
It doesn't matter. header.c never changes :)

btw there is libmpeg2-0.2.0+about 3 weeks CVS version in MPlayer.

> > for proper seeking and timing.
> Yepp, I nearly thought so ... 
> 
> > The work can be splitted for these parts:
> > - demuxer: you have to make it portable, but it's much easier than
> >   current MPlayer's very complex demuxer.
> I am not good at those byte order problems, could you maybe give some
> examples (maybe from the code) of which pitfalls I should avoid ? 
> Is it mainly about taking care of the right order when reading from byte
> streams ? 
yes. mpeg needs dword reading for headers, you must change it.

> >   (mpeg2dec's demuxer can't handle all files nor audio... nor sync.
> >   it's only a fast hack to get PS streams work with libmpeg2 for testing.)
> Exactly .... pfff ... 
> 
> > - mpeg2 decoding - already portable...
> Yepp, that's good - and a friend of mine here, Patric, has made code to
> take better advantage of the MIPS-architecture - using double instead of
> int ! ;) ;)
ehh :)
is double faster than long long?
i used mips r5000 for a while and it's fpu is a shit.

> > - audio playback - steal it from mpg123 :)
> > - mp3lib - based on portable mpg123, so shouldn't big work
> >   and I already used it on IRIX a year ago, but it needs some small changes
> Hmmm, I need both the code from mpg123 and mp3lib ? 
> Ah, mpg123 is using mp3lib, right ? 
no. mp3lib is based on mpg123.

> > - libvo: drop everything except x11, gl, pgm and null
> >   (pgm and null are very usefull for testing)
> Yes, definitely, I wouldn't have hassled with anything else in the moment
> (although I already have an SDL up and running on this machine, but I
> won't trust it yet)
hmm. which SDL version? there are very buggy ones ;)
btw aalib at 2048x1600 looks good :)

> > btw we should move to mplayer-dev-eng with this topic...
> You mean: Stay on this list ? :-)
yes... i thought that we are on users. so many replies, its unusal here :)

> Ah, it feels much safer now that I know what to do - and it is good to
> know that there are no other opensource-projects for MPEG2-playback on
> IRIX - gives the whole thing a bit of a pioneer-feeling ;) 
> 
> Servus,
>   Gernot
> 
> BTW: If you ever feel that these questions get too much for you (I have
> nearly 6 hours/day available for this project during the next time),
> please tell me so, and I will shut up for a while ;) 
No problem, but i have no much time nowdays for mplayer, and i spent it to
answer mails on lists and fixing bugs :)
Unfortunately i have no time for irix porting, but i'm interested
(i'm administrating such systems at work)


A'rpi / Astral & ESP-team

--
mailto:arpi at thot.banki.hu
http://esp-team.scene.hu

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