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Newsgroups: comp.sys.next.announce
From: gary@isr.recruit.co.jp (Gary K. Arakaki)
Subject: SUBMISSION: yav yet another video encoder/decoder for NeXT on cs.orst.edu & sonata.cc.purdue.edu
Organization: Next Announcements
Approved: sanguish@digifix.com
yav is a software only video encoder/decoder for NeXT
workstations. It will play a video with a reasonable frame
size (288x224 pixels) at a reasonable frame rate (greater than or
equal to 6 frames/second depending on cpu speed) with a synchronized
sound track for a reasonable length of time (greater than 10 minutes
depending on disk size). Since the above requirements necessitates
a computationally inexpensive algorithm for on the fly decompression,
the compressed format is not MPEG. Instead it is a format designed
primarily for easy decompression. It sacrifices both compression
ratio and quality in order to achieve a large frame size and high
frame rate. The encoder is not real time and requires from 2 to
6 minutes to encode a single frame depending on quality. Since
the design objective of yav is to implement a software encoder/decoder
for low-end workstations in general, yav is not a NeXTstep application.
Except for the imaging routines the yav source written in C is
completely machine independent and should be easy to port to any
UNIX platform.
Also included are utilities to convert MPEG format movies to
yav format movies. The MPEG convertor is derived from the
Berkeley public domain player. Unfortunately, the only video with
sound I have was captured from the TV and is not in the public
domain. However, a converted MPEG without sound is included.
The yav tar file "yet_another_video.tar" is available by
anonymous ftp from cs.orst.edu in next/submissions and
sonata.cc.purdue.edu in next/submissions.
gary@isr.recruit.co.jp
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Marcel Waldvogel and Netfuture.ch.