HELP: MPEG-1 player in pure Assembler

victim · 06 April 2009, 12:30

Hello Amiganer !

At time i try to programming a MPEG-1 decoder / player for the 68060 CPU in pure Assembler. So far I have not found the correct instructions on the construction of the MPEG-1 format.

Has anyone here perhaps a tutorial about the header structure of MPEG-1 or any assembler routines on this topic?

At Aminet site, I have this program with source code and some assembler routines found. http://aminet.net/package/gfx/show/aMiPEG_1.1_src

Now you can see a "discrete cosine transformation" is needed for MPEG-1 decoding.

Thanks for your help
greets, Victim

kriz · 06 April 2009, 12:48

heyy cool

The fastest now should be Riva..

alexh · 06 April 2009, 12:54

Quote:

Originally Posted by victim

Has anyone here perhaps a tutorial about the header structure of MPEG-1 or any assembler routines on this topic?

FFS, google man! There are millions of resources on the subject.

http://dvd.sourceforge.net/dvdinfo/mpeghdrs.html

Quote:

Originally Posted by victim

At Aminet site, I have this program with source code and some assembler routines found. http://aminet.net/package/gfx/show/aMiPEG_1.1_src

http://aminet.net/package/mus/play/MPEGA35

Quote:

Originally Posted by victim

Now you can see a "discrete cosine transformation" is needed for MPEG-1 decoding.

Erm, yeah....

Shame that RiVA development is over and the product has not been open sourced / made free. I wonder if the author makes any money from it?

The successor for OS4.0 seems to be recently active (1 year)

http://dvplayer.amigarevolution.com/

victim · 06 April 2009, 13:48

Thank your for the links

Quote:

FFS, google man! There are millions of resources on the subject.

http://dvd.sourceforge.net/dvdinfo/mpeghdrs.html

This is a good page for description of the MPEG headers

I have a lot on google search, but most documents on mpeg are absolutely incomplete

Quote:

http://aminet.net/package/mus/play/MPEGA35

This link is only for MPEG audio and not for the video format for the intended

Quote:

Erm, yeah....

Shame that RiVA development is over and the product has not been open sourced / made free. I wonder if the author makes any money from it?

The successor for OS4.0 seems to be recently active (1 year)

http://dvplayer.amigarevolution.com/

alexh · 06 April 2009, 14:20

Quote:

Originally Posted by victim

This link is only for MPEG audio and not for the video format for the intended

But it has some code for parsing MPEG headers. Perhaps not applicable.

Did you try RiVA to see what to aim for?

http://aminet.net/package/gfx/show/RiVA

exoticaga · 06 April 2009, 16:30

Besides Riva is there any good free mpeg players for the amiga ?
mpeg2 more than mpeg1, mpeg2 being the standard dvd format.

victim · 06 April 2009, 17:20

My goal is an MPEG player routine for demo programming to develop.
This player then I will later make open source for all ambitious amiga demo programmer.

Quote:

Originally Posted by alexh

FFS, google man! There are millions of resources on the subject.

http://dvd.sourceforge.net/dvdinfo/mpeghdrs.html

http://aminet.net/package/mus/play/MPEGA35

Erm, yeah....

Shame that RiVA development is over and the product has not been open sourced / made free. I wonder if the author makes any money from it?

The successor for OS4.0 seems to be recently active (1 year)

http://dvplayer.amigarevolution.com/

Quote:

Originally Posted by alexh

But it has some code for parsing MPEG headers. Perhaps not applicable.

Did you try RiVA to see what to aim for?

http://aminet.net/package/gfx/show/RiVA

alexh · 06 April 2009, 18:55

Quote:

Originally Posted by exoticaga

is there any good free mpeg players for the amiga?

There was Frogger.

http://frogger.rules.pl/

Quote:

Originally Posted by exoticaga

mpeg2 more than mpeg1, mpeg2 being the standard dvd format.

You're never going to be able to playback 720x576i MPEG2 with a 68k Amiga. AFAIR anything below an 060 struggles to do 352x288 MPEG1 (Hence CD32 FMV cart). You're gonna need a PPC and a gfx card with YUV frame buffer support.

exoticaga · 07 April 2009, 05:35

Thanks Alex that explains a great deal, will keep to pc for that.

Quote:

Originally Posted by victim

My goal is an MPEG player routine for demo programming to develop.
This player then I will later make open source for all ambitious amiga demo programmer.

Sounds a nice goal victim

06 April 2009, 12:30	#1
victim Registered User Join Date: Mar 2009 Location: N/A Posts: 23	HELP: MPEG-1 player in pure Assembler Hello Amiganer ! At time i try to programming a MPEG-1 decoder / player for the 68060 CPU in pure Assembler. So far I have not found the correct instructions on the construction of the MPEG-1 format. Has anyone here perhaps a tutorial about the header structure of MPEG-1 or any assembler routines on this topic? At Aminet site, I have this program with source code and some assembler routines found. http://aminet.net/package/gfx/show/aMiPEG_1.1_src Now you can see a "discrete cosine transformation" is needed for MPEG-1 decoding. Thanks for your help greets, Victim

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06 April 2009, 12:48	#2
kriz Junior Member Join Date: Sep 2001 Location: No(R)Way Age: 41 Posts: 3,188	heyy cool The fastest now should be Riva..

06 April 2009, 16:30	#6
exoticaga Registered User Join Date: Aug 2007 Location: UK Posts: 446	Besides Riva is there any good free mpeg players for the amiga ? mpeg2 more than mpeg1, mpeg2 being the standard dvd format.

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