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-
- {center}
- {subhead} CyberQT 1.4 Vs. QT 1.4{def}{p}
- Review by Leto Kauler
- {left}
- {p} {p}
-
- It's high noon on the Amiga corale. The two competitors saunter into
- the deserted street, their arms tense by their sides, fingers
- twitching. It's the showdown of the decade.... to prove who's the
- fastest Quicktime in the West....
- {p} {p}
- {center}
- {bold}CyberQT 1.4{nobold}{p}
- -----------{p}
- (c)1996-1997{p}
- {bold}Thore Boeckelmann{nobold}
- {p} {p}
- {subhead}{bold}Vs.{def}{nobold}
- {p} {p}
- {bold}QT 1.4{nobold}{p}
- ------{p}
- (c)1996-1997{p}
- {bold}Marcus Comstedt{nobold}
- {p} {p}
- {left}
- Heard of Quicktime? It's a special video and audio format, created
- by Apple. Quicktime movie clips are pretty good for the Internet
- because they are well compressed and therefore can be sent about
- fairly quickly. There are HEAPS of quicktime files available on the
- Internet, and I'll give you the low-down on the best programs to
- play them.
- {p} {p}
- You might have noticed that both CyberQT and QT are getting a bit
- old now (1997), and I think, unfortunately, they aren't supported
- by their authors anymore either.
- {p} {p}
- Both programs have very similar options to alter the playback of
- your quicktimes, but they essentially work quite differently.
- The main difference is that QT will load the whole file (both
- audio and video) into RAM. While this supposedly speeds up
- playback, it means you need a LOT of RAM. If you've got a
- quicktime movie larger than available memory, then you can forget
- about being able to play it. CyberQT on the other hand can play
- a movie in very little memory. In fact, on my A1200 I was still
- able to watch clips with only 250K Chip and 200K Fast.
- {p} {p}
- One problem with Quicktimes I've encountered is that there is
- actually many different video and audio formats under the title
- "quicktime". The player requires a decoder for each format, and
- if a decoder for a certain format is not available you may not
- be able to play the video or audio or both. CyberQT has numerous
- more decoders than QT, but still doesn't cover them all. Therefore
- you will come across quicktime files which you simply won't be
- able to play. This is more common for newer quicktimes. As far
- as I know, neither program can run Quicktime 3 or higher encoded
- movies.
- {p} {p}
- Now for the important information: the frame rates! Please note
- that I've only got a standard 68020... so the FPS (frames per
- second) really is quite low. My CPU does pretty well, but any
- processor higher than this I imagine would cook quicktimes to a crisp.
- Also note that the variety of video and audio formats make a
- difference to speed.
- {p} {p}
- {center}{bold}
- RESULTS{nobold}
- {left}
- {p} {p}
- Movies played on a custom lo-res screen unless otherwise stated.
- {p} {p}
- ------------------------------------------------------{p}
- StarTrek Voyager episode trailer 313 frames @ 10 fps{p}
- Video: Radius Cinepak, 24 bit, 160x120 1.74MB file{p}
- Audio: PCM 8 bit Mono, 11,127 Hz{p}
- ------------------------------------------------------{p}
- {bold}CyberQT{nobold}{p}
- ------------------------------------------------------{p}
- Options / Settings FPS{p}
- ------------------------------------------------------{p}
- 1. 8bit colour 7.85{p}
- 2. 8bit colour, HiRes screen 7.72{p}
- 3. 8bit colour, dither 7.14{p}
- 4. 8bit colour, dither, audio preload 7.51{p}
- 5. 8bit grey 9.36{p}
- 6. 8bit grey, audio preload 9.88{p}
- 7. HAM8 2.17{p}
- ------------------------------------------------------{p}
- {bold}QT{nobold} (always preloads video and audio){p}
- ------------------------------------------------------{p}
- 1. 8bit colour 7{p}
- 2. 8bit colour, dither 2{p}
- 3. 8bit grey 7{p}
- 4. HAM8 4{p}
- ------------------------------------------------------
- {p} {p}
- ------------------------------------------------------{p}
- StarWars IV clip 281 frames @ 10 fps{p}
- Video: Radius Cinepak, 24 bit, 160x100 1.2MB file{p}
- Audio: IMA ADPCM 16 bit Mono, 11,025 Hz{p}
- ------------------------------------------------------{p}
- {bold}CyberQT{nobold}{p}
- ------------------------------------------------------{p}
- Options / Settings FPS{p}
- ------------------------------------------------------{p}
- 1. 8bit colour 7.95{p}
- 2. 8bit colour, dither 7.13{p}
- 3. 8bit colour, dither, audio preload 8.77{p}
- 4. 8bit grey, audio preload 10.00{p}
- 5. HAM8 2.39{p}
- ------------------------------------------------------{p}
- {bold}QT{nobold} (always preloads video and audio){p}
- ------------------------------------------------------{p}
- 1. 8bit colour 8{p}
- 2. 8bit colour, dither 3{p}
- 3. 8bit grey 8{p}
- 4. HAM8 4{p}
- ------------------------------------------------------
- {p} {p}
- As you can see, CyberQT really does a good job for Quicktime playback,
- especially for dithering. QT is faster for HAM8 though (which
- actually looks horrible in both programs). But as I said before, this
- is on a 68020 processor, so if you've got anything higher then you're
- laughing.
- {p} {p}
- I have no idea how CyberGFX playback works, but both programs support
- it and apparently play the movies in windows on Workbench. With AGA
- you have to watch them on a custom screen.
- {p} {p}
- As far as playing Quicktime files, CyberQT is my favourite program,
- mainly for the direct-from-disk playback feature. QT is still a
- good program, but just doesn't reach a high enough frame rate.
- {p} {p}
- My suggestion is to try both on your system and decide for yourself.
- {p} {p}
- You can find the Quicktime movies above at the following links, along
- with plenty more to keep you busy for ages.
- {p} {p}
- {link http://cnn.com/EVENTS/1997/star.wars.anniversary/clips/index.html}http://cnn.com/EVENTS/1997/star.wars.anniversary/clips/index.html{end}
- {link http://graffiti.u-bordeaux.fr/MAPBX/roussel/anim-e_all.html}http://graffiti.u-bordeaux.fr/MAPBX/roussel/anim-e_all.html{end}
- {p} {p}
- Both CyberQT and QT can be found on Aminet.
- {p} {p}
- {bold}CyberQT.lha{nobold} 300K{p}
- {bold}qt14.lha{nobold} 266K
- {p} {p}
- Email : {bold}letok@netspace.net.au{nobold}{p}
- URL : {link http://letostarfish.cjb.net}http://letostarfish.cjb.net{end} AND {link http://lyle.cjb.net}http://lyle.cjb.net{end}