Rockbox Development > Feature Ideas
What would you do with slow and limited TV out?
LambdaCalculus:
TV out for the JPEG plugin would be useful. Although the iPod 4G color has TV out as well, that model doesn't have a Broadcom chip in it. I need to look again to see what the 4G color uses for TV out.
soap:
I'd be more likely to want to display WPS than jpeg.
dreamlayers:
Regarding frame rates and displaying the WPS, the main problem is that the TV out signal is lost for a short time while switching images. (And I mean lost; not even sync is output.) This might be acceptable for slideshows but I don't think it would be acceptable for WPS or video.
Frame rate is certainly enough for slide shows, even at 720x480. I'll time it tomorrow.
Finally, here are the benchmarks:
30 Mhz:
320x240, NTSC: 52.5 FPS, 42% CPU
720x480, NTSC: 6.6 FPS, 24% CPU
720x576, PAL: 5.5 FPS, 24% CPU
80 Mhz:
320x240, NTSC: 72 FPS, 21% CPU
720x480, NTSC: 7.7 FPS, 11% CPU
720x576, PAL: 6.4 FPS, 10% CPU
The speed increase at 80 Mhz comes purely from faster loading of data into the BCM. The amount of time the BCM takes after that is unchanged.
jswetzen:
I can see the potential of presenting slide shows with a much higher resolution than the OF, if that is possible. 320x240 pixels gets too blurry for serious presentations. Powerpoint-like presentations would also be a possibility, perhaps using something like the WPS syntax for formatting?
pabouk:
--- Quote from: jswetzen on January 23, 2009, 10:07:02 AM ---Powerpoint-like presentations would also be a possibility, perhaps using something like the WPS syntax for formatting?
--- End quote ---
I think that much more feasible would be to convert the slides of the presentation to bitmaps (PNG, BMP...) The already existing image viewer would need just some enhancements to be better suited for presentations.
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