Thread: [WIP]Raspberry Pi as USB HDMI-out (via USB Networking)
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Fabry is offline Fabry
2012-01-09 , 22:00
Posts: 362 | Thanked: 426 times | Joined on Nov 2010 @ Italy, Lombardia
#15
Originally Posted by Estel View Post
Quite interesting info - thanks for sharing. Yet, considering WiFi bandwidth limitation, I don't believe it's true "mirroring" (especially in case of videos decoded via N900 dsp) - it's too much for USB, not to mention WiFi.

Anyway, fortunately, using Raspberry Pi we should be able to achieve that with FOSS components, so we're not FCKD up, if some random guy decide, that he's not going to support Maemo. Not to mention, that I bet my left shoe, that his toy would be priced 2-3x of what we need to pay for Raspberry Pi.

/Estel
Bandwidth is not a problem since I suppose that external hw only receive a video stream like a film.
So 2-3mbit (H264) could be sufficient for an 800x480 video stream

I think that Apple's AirPlay works in the same manner, and we can try do it only on software (since it is only software even on Ipad2).

We need to record Omap gfx framebuffer with at least 30fps and encode that stream with a fast cpu based encoder (i.e. MJPEG to use low cpu) or with a dsp based encoder.

If you stream by WiFi what is displayed on N900's lcd, the external player (VLC on PC, Rasberry connected to TV, SmartTV ...etc) becomes like a Wireless HDMI for N900

A starting point: http://talk.maemo.org/showpost.php?p...01&postcount=9
Last edited by Fabry; 2012-01-09 at 22:06.
 

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