Changes for Amiga 68k/PPC port are documented in
 in "CHANGES.amiga". For usage information, please
 refer to "SETUP".

 PPC binary is called "jpeg.elf" and useable from Shell
 when being used with ppc.library V46+

 General information follows.

 --
 ARK, 7/Mar/99

************************************************************************
 Here's an excerpt from the documentation (parts left out by [...]):
************************************************************************

                 MPEG, CCITT H.261 (P*64), JPEG
  Image and Image sequence compression/decompression C software engines.


The Portable Video Research Group at Stanford have developed
image/image sequence compression and decompression engines (codecs)
for MPEG, CCITT H.261, and JPEG. The primary goal of these codecs is
to provide the functionality - these codecs are not optimized for
speed, rather completeness, and some of the code is kludgey.

Development of MPEG, P64, and JPEG engines has not been the primary
goal of the Portable Video Research Group.  Our research has been
focused on software and hardware for portable wireless digital video
communication.  The charter of this group ended in the summer of 1994.

[...]

III) PVRG-JPEG CODEC: (pub/jpeg/JPEGv1.2.tar.Z)

This public domain image encoder and decoder is based on the JPEG
Committee Draft.  It supports all of the baseline for encoding and
decoding.  The JPEG encoder is flexible in the variety of output
possible.  It also supports lossless coding, though not as speedy as
we would like.  The manual is approximately 50 pages long which
describes its use.  The display program for JFIF-style (YCbCr) files is
described in section IV) below.  The JFIF style is not a requirement
for this codec - it can compress and decompress CMYK, RGB, RGBalpha,
and other formats - this codec may be helpful if you wish to extract
information from non-JFIF encoded JPEG files.

This codec has been tested on publicly available JPEG data.  For
general purpose X display, you might want to try the program "xv"
(version 2.0 or greater).  The JPEG engine of the program "xv" is
based on the free, portable C code for JPEG compression available from
the Independent JPEG Group.  (anonymous login - ftp.uu.net (137.39.1.9
or 192.48.96.9) /graphics/jpeg/jpegsrc.v4.tar.Z).

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 2899    2899 100.0% -lh0- 3820 Mar  7  1999 pvrgjpeg/blkint.jpg
[generic]                 1351    2644  51.1% -lh5- dcd9 Mar  7  1999 pvrgjpeg/CHANGES
[generic]                  374     604  61.9% -lh5- d9cd Mar  7  1999 pvrgjpeg/CHANGES.amiga
[generic]                 2338    8528  27.4% -lh5- 92ce Mar  7  1999 pvrgjpeg/chendct.c
[generic]                 4053   14854  27.3% -lh5- 3be7 Mar  7  1999 pvrgjpeg/codec.c
[generic]                  725    2147  33.8% -lh5- c3de Mar  7  1999 pvrgjpeg/csize.h
[generic]                 1257    4348  28.9% -lh5- f7fc Mar  7  1999 pvrgjpeg/dct.h
[generic]               118322  474103  25.0% -lh5- f87f Mar  7  1999 pvrgjpeg/doc.ps
[generic]                 2713    7232  37.5% -lh5- dd06 Mar  7  1999 pvrgjpeg/globals.h
[generic]                 4785   16802  28.5% -lh5- 84ab Mar  7  1999 pvrgjpeg/huffman.c
[generic]                   53      53 100.0% -lh0- 63d9 Mar  7  1999 pvrgjpeg/include/sys/file.h
[generic]                 8461   30497  27.7% -lh5- a847 Mar  7  1999 pvrgjpeg/io.c
[generic]                 2639    6494  40.6% -lh5- 3464 Mar  7  1999 pvrgjpeg/jpeg.1
[generic]                14523   62366  23.3% -lh5- 57c6 Mar  7  1999 pvrgjpeg/jpeg.c
[generic]                80944  216750  37.3% -lh5- 9af2 Mar  7  1999 pvrgjpeg/jpeg.elf
[generic]                  387     835  46.3% -lh5- 6196 Mar  7  1999 pvrgjpeg/jpeg.info
[generic]                 2527    9325  27.1% -lh5- b962 Mar  7  1999 pvrgjpeg/leedct.c
[generic]                 9871   42283  23.3% -lh5- 3781 Mar  7  1999 pvrgjpeg/lexer.c
[generic]                 7012   28684  24.4% -lh5- df03 Mar  7  1999 pvrgjpeg/lexer.l
[generic]                  697    1639  42.5% -lh5- 00cd Mar  7  1999 pvrgjpeg/makefile
[generic]                 4645   18008  25.8% -lh5- fb4a Mar  7  1999 pvrgjpeg/marker.c
[generic]                  783    1783  43.9% -lh5- 4bea Mar  7  1999 pvrgjpeg/marker.h
[generic]                 2922    2922 100.0% -lh0- fa3e Mar  7  1999 pvrgjpeg/nonint.jpg
[generic]                 1811    3946  45.9% -lh5- 0488 Mar  7  1999 pvrgjpeg/param.h
[generic]                  242     365  66.3% -lh5- 816f Mar  7  1999 pvrgjpeg/PORTABILITY
[generic]                 1492    5108  29.2% -lh5- 5614 Mar  7  1999 pvrgjpeg/prototypes.h
[generic]                 1251    2464  50.8% -lh5- 2fd3 Mar  7  1999 pvrgjpeg/pvrgjpeg.readme
[generic]                 3313    7311  45.3% -lh5- 1df0 Mar  7  1999 pvrgjpeg/README
[generic]                  201     321  62.6% -lh5- f191 Mar  7  1999 pvrgjpeg/SCOPTIONS
[generic]                 1199    2601  46.1% -lh5- 44f6 Mar  7  1999 pvrgjpeg/SETUP
[generic]                  777    1739  44.7% -lh5- 7b00 Mar  7  1999 pvrgjpeg/smakefile
[generic]                  797    1803  44.2% -lh5- 8ecc Mar  7  1999 pvrgjpeg/smakefilePPC
[generic]                 6859   24441  28.1% -lh5- 5aca Mar  7  1999 pvrgjpeg/stream.c
[generic]                  746    1548  48.2% -lh5- 0497 Mar  7  1999 pvrgjpeg/stream.h
[generic]                 1474    3678  40.1% -lh5- 5af1 Mar  7  1999 pvrgjpeg/system.h
[generic]                 1530    4706  32.5% -lh5- 4faa Mar  7  1999 pvrgjpeg/tables.h
[generic]                  325     625  52.0% -lh5- b40c Mar  7  1999 pvrgjpeg/test.3stream
[generic]                 1010    3789  26.7% -lh5- c0fd Mar  7  1999 pvrgjpeg/test.huff
[generic]                  327     593  55.1% -lh5- e89e Mar  7  1999 pvrgjpeg/test.q
[generic]                 3227   11621  27.8% -lh5- 758e Mar  7  1999 pvrgjpeg/transform.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        40 files  300862 1032459  29.1%            Mar 17  1999