home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Datafile PD-CD 3
/
PDCD_3.iso
/
utilities
/
utilsm
/
mpeg
/
!MPEG
/
!Help
< prev
next >
Wrap
Text File
|
1993-06-01
|
3KB
|
108 lines
====================
!Help file for !MPEG
====================
Version 2.0.6 (01 Jun 1993)
Based on the public domain player written by:
Lawrence A. Rowe, Ketan Patel, and Brian Smith
Computer Science Division-EECS, Univ. of California
at Berkeley.
Acorn port and additional RISCOS-specific
support code and display routines by:
Paul LeBeau
(plebeau@cix.compulink.co.uk)
--------------------------------------------------
This software is FREEWARE.
Permission for non-profit distribution of this
software is granted, provided it is distributed
"as is", without change.
Further information about (and the source for) the
Berkeley player is available from the Berkeley
FTP site listed below.
Thanks are due to:
Roger Wilson at Acorn
Chris Marshall
Andrew Hersee
If you find any bugs or have technical questions,
then feel free to email me. Use the email address
above, or alternatively try mailing me at the
following address:
c/- 4Mation
14 Castle Park Rd
Barnstaple
Devon
EX32 8PA
U.K.
---------------------------------------------------
!MPEG Frequently Asked Question list {8-b
(1) How do I make it work?
1. Set your MPEG file to filetype &BF8 ("MPEG")
2. Double click on it (make sure !MPEG
has been seen by the filer first).
Remember also, that the player doesn't run
directly (it runs when you double-click on
an MPEG file), so if you are getting funny
crashes when you run a file, check that
you have a reasonable amount of memory in
your 'Next' slot in the Task display.
(2) Where do I get MPEG files from?
Try the following FTP sites:
toe.cs.berkeley.edu (128.32.149.117)
in the directory /pub/multimedia/mpeg
phoenix.oulu.fi (130.231.240.17)
in the directory /pub/mpeg
Remember to ensure you are in 'binary'
mode before downloading any files.
(3) What about sound?
As far as I know, the part of the MPEG standard
that deals with sound has not been completely
finalised as yet. There is certainly no software
that supports it yet. When the Berkeley sources
(which this port is based on) support it, then
I will.
(4) Why isn't it faster?
The MPEG file decoding and decompression is
written in C. The DCT (Discrete Cosine Transform)
compression method is pretty slow (have you tried
decoding a JPEG file lately!). I have a few ideas
for speeding it up and I intend to implement these
eventually.
(5) How does this affect Replay?
It doesn't.
I've used the same colour translation/dithering tables
and methods as Replay (courtesy of Roger Wilson) but
that's pretty much as far as it goes.