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- Path: dedal.man.szczecin.pl!usenet
- From: Miloslaw Smyk <smykm@felix.univ.szczecin.pl>
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Is a real good mpeg player possible on the amiga ?
- Date: Wed, 24 Jan 1996 13:25:40 +0100
- Organization: Technical University of Szczecin
- Message-ID: <31062544.2781@felix.univ.szczecin.pl>
- References: <4e2gqu$5ca@caers3.unicaen.fr>
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-
- Samuel Devulder wrote:
- >
- > Hi !
- >
- > Is it possible to write a real good mpeg player for the amiga ?
-
- Yes.
- >
- > I've tried mp and mpeg_play, but they are too sloow (even on my
- > 68030@40Mhz). I think this is due to the fact they come from
- > unix-world and don't try to use amiga-specific features.
-
- No. Take a look at the sources. A lot of them has optimized chunky to
- planar converters and some time-critical parts moved to assembler.
-
- >
- > I'm not an expert, but may be doing some pre-processing on the
- > file (an index to start of frames for example) and only working
- > on luminance values (and skipping the decoding of other color
- > informations) could speed up the thing.
-
- Nearly every MPEG player does so, when you specify -dither gray on the
- command line. For example you could try Michael Van Elst's mp or new
- version of aMiPEG (v0.5) which I enhanced with CyberGraphX support.
-
- >
- > It would be great if standard amigas could play mpeg anims with
- > a good speed. I don't think the color is always usefull, working
- > in black&white/grey mode at 20fps is better in my mind than having
- > a pseudo truecolor anim in ham8 at 2fps !!. Further more, if our
-
- aMiPEG plays DebbieHarry.mpg 6.5 fps full screen HAM8 on 68040/25MHz and
- 7.1 on 24-bit screen in window.
-
- > computer claims to be a "multimedia" machine, it is a pity that it
- > can't display mpeg in a correct way !
-
- It is correct. Perhaps fast CPU is an answer. MPEG is very
- computation-intensive and no Amiga-specific features can help it.
-
- Greetings,
- Milek
-
- Ps. aMiPEG v0.5 will be on Aminet in the end of this week.
- --
- Life is too short to use Windows.
-