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Amiga Plus Extra 1997 #6
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cyberavi.readme
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1997-01-27
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Short: AVI animation player for CyberGraphX/AGA and 68020+
Uploader: tboeckel@uni-paderborn.de (Thore Boeckelmann)
Author: tboeckel@uni-paderborn.de (Thore Boeckelmann)
Type: gfx/show
Replaces: gfx/show/CyberAVI17.lha
CyberAVI is a fast AVI animation player for 020+ machines with AmigaOS 3.0 or
higher and a graphic board with CyberGraphX or AGA.
minimum hardware requirements:
-Amiga with AmigaOS 3.0 (V39)
-MC68020
-graphic board with CyberGraphX (eg. CyberVision64, Picasso II, Retina, etc)
or AGA chipset
-2MB of FastRAM, 512K of ChipRAM
software requirements
-CyberGraphX 2.16 or higher (if used with a graphic board)
-asyncio.library V37 (included)
recommended hardware requirements:
-Amiga with AmigaOS 3.1 (V40)
-MC68040 at 25MHz minimum
-graphic board with CyberGraphX
Supported encodings until now:
Radius CinePak (CVID) 8/24 bit (8 bit is gray-only)
Microsoft Video 1 (MSVC) 8/16 bit
Microsoft RGB (RGB) 4/8/16/24/32 bit
Microsoft RLE8 (RLE8) 8 bit
IBM Ultimotion (ULTI) 16 bit
Component Video (YUV2) 24 bit
Intel Raw (YUV9) 16/24 bit
PCM 8 bit Mono/Stereo
PCM 16 bit Mono/Stereo
ADPCM 4 bit Mono
CyberAVI is Copyright (c)1996-1997 by Thore Boeckelmann.
Changes since V1.7:
- added support for 8bit gray Cinepak (CVID) compression. Thanks to Arjo
Rozendaal for his hint where to find such animations.
- improved selection of screenmode id, when selection by requester failed
because of no suitable screenmodes
- added support for 4bit RGB compression. Thanks to Philippe Reux for his
sample animation.
- now there is also a german documentation
- fixed some bugs when reading palette
- fixed a big bug in CVID decoder that could hurt innocent memory. Damn that
difference between ">" and ">=". This bug existed since the time CyberAVI
supported CVID :(
- playback on public screens is not aborted anymore when a mousebutton is
pressed
- AGA routines now use an additional TmpRas of 4K. Again approx. DOUBLE
playback speed is archived for most animations (on my MC68060)!
- added option HAM8 to force playback of truecolor animations on a HAM8
screen with AGA
- some speed optimizations for all decoders. Sometimes upto 15fps more (with
68060, compared to V1.7) can be archived!
- Truecolor animations are now rendered much better in grayscale mode with
AGA. Now all 256 grayscale colors are used instead of just a few.
- fixed a really bad bug with ADPCM samples, that was introduced with V1.7
- fixed a bug that could lead to lockups in some situations when sound
playback was switched on.
- fixed problems with skipping. Sometimes not enough frames were skipped =>
garbage in display
- skipping is now also possible for AVIs where every frame is a keyframe (eg:
RGB, YUV9)
- 15bit screen modes are now also possible for selection. How could I forget
this before?
- senseless values for video buffer sizes are now ignored (Sven Ottemann
reported this "out of memory" bug)
- option SOUND has been renamed to NOSOUND. Sound playback is now switched on
by default.
- added option NOVIDEO to switch off video playback
- fixed very bad bug with 8bit PCM stereo samples that trashed memory
- CyberAVI crashed when audio.device was unavailable, now fixed.