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long term video playback on SEGA
Posted: Fri Feb 05, 2010 8:32 pm
by KRIKzz
i build flash cart with SD card support and now i try to play videofiles from SD card. i use 224x168 resolution and evry frame have 19kbyte of size. spi interface on cart have ~500kb/sec data rate, but realy i can take only ~260kb/sec, so i have 13-14fps. on 2gb SD card i can upload 2 hous of video
funny, right ? (:
here some demonstration videos:
low quality tv sync
starcraft
final fantasy
simpsons
transformers
Posted: Sat Feb 06, 2010 12:04 am
by Stef
awesome ! Just missing sound now :p
Posted: Sun Feb 07, 2010 5:35 am
by Christuserloeser
Maybe you could use TmEE's Z80 driver for PCM playback ?
Posted: Sun Feb 07, 2010 6:47 am
by KRIKzz
Christuserloeser wrote:Maybe you could use TmEE's Z80 driver for PCM playback ?
may be, but i think it will be difficult. in any case, i damage my cart, in some experiment, and now in waiting parts, for restore it
Posted: Sun Feb 07, 2010 9:09 am
by TmEE co.(TM)
one would need some coordination between the Z80 and 68K since you cannot really have asynchrounous playback of video and sound in such setup (I think).
Posted: Tue Feb 09, 2010 10:42 pm
by Huge
The SD card interface is impressive, but otherwise, let's just say "Sega CD".
Posted: Wed Feb 02, 2011 4:29 am
by sega16
You could start the z80 pcm then just play the video and hope it is similar (in sync)