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1999-11-18
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Short: Ultimate MPEG video player (68k & PPC v1.43)
Author: Miloslaw Smyk, Sebastian Jedruszkiewicz, Przemyslaw Gruchala
Uploader: Sebastian Jedruszkiewicz <bjsebo@jota.wi.tuniv.szczecin.pl>
Type: gfx/show
WWW: http://amiga.com.pl/frogger/
Replaces: gfx/show/?rogger.lha
Short
------
Frogger is the ultimate MPEG video player, with MPEG-2 layer support.
Frogger was oryginally relased by Miloslaw Smyk (thorgal@wfmh.org.pl),
recently, the development has been taken over by Sebasian Jedruszkiewicz
(bjsebo@jota.wi.tuniv.szczecin.pl) Additional programming was made
by Przemyslaw Gruchala.
Please refer to guide inside archive for more info.
Changes in this release:
- Optimized asyncio routines, by replacing memcopy routines with
two buffers and simple buffer swap operation.
- fixed and optimized timer routines.
- AsyncIO task is now properly closed when new mpeg file is opened.
- Frame rate is now set to 29.970, if there is no valid frame
rate information in stream.
- Asl requester now remember file path.
- Sound was played only once, when LOOP was used. Fixed.
- Added BGR16PC pixel format in 68k version.
- Optimized grey dithering. Only luminance channel is decoded
if user requested grey output. This gives about twice faster decoding
in grey. 68k users will benefit from that ;)
- changed default bufer sizes to: 16384 (when there is no audio track)
and 32768 when audio track is detected. This gives much smoother
playback.
- fixed Amiga+4 hot key, window is resized now to screen_height - 1.
- New parametter: AHIUNIT, let you specify your prefered AHI unit.
default is still 0.
- Optimized video decoding a bit, by using a faster memset replacement.
- changed ALLFRAMES to NOSKIP. This is better name for that switch,
I think. Also changed DITHER keyword to DISPLAY.
- Cleaned the code a bit. Removed unused functions, executable size is
smaller.
- Optimized VLAYERGREY conversion routine (1-2%).
- BUFSIZE, FPS, and AHIUNIT parametters were wrong converted, when
Frogger was started from icon. Fixed.
- New switch: NOVIDEO.
- Optimized IDCT in 68k version.
- Fixed PLL calculation in timer routines.
- Added P96 display.
- I have just discovered, that Frogger fails to find valid audio track
in some movies. In that case try to increase BUFSIZE (65536 or even
more). It will be fixed in next version. Also I had to disable audio
preloading, so it may be not enough data to start audio in the same
time as video is started. In this case use AUDIO16 and/or FORCESTEREO,
so the audio buffer will be filled faster, and the sound will be less
delayed.