Page 1 of 2 1 2
Reply
Thread Tools Search this Thread
pinsh is offline pinsh
04-17-2010 , 08:41 AM
Posts: 74 | Thanked: 141 times | Joined on Oct 2009 @ Chicago, US
#1
This is an interesting article on Theora decoding on the DSP of the N900:

http://blog.mjg.im/2010/04/16/theora-on-n900.html

it is also covered on Slashdot:

http://news.slashdot.org/story/10/04...Firefox-Mobile

The N900 is the first phone with DSP accelerated Theora playback
 

The Following 4 Users Say Thank You to pinsh For This Useful Post:
filologen is offline filologen
04-17-2010 , 08:48 AM
Posts: 145 | Thanked: 87 times | Joined on Nov 2009 @ Copenhagen
#2
This surely looks interesting!
 
zimon is offline zimon
04-17-2010 , 08:59 AM
Posts: 1,305 | Thanked: 621 times | Joined on Feb 2010
#3
That DSP opimized Theora decoder should be ported to gstreamer also, so native media player could play Theora video efficiently also.
 
dreadnought is offline dreadnought
04-17-2010 , 09:52 AM
Posts: 242 | Thanked: 103 times | Joined on Nov 2009 @ Sheffield, UK
#4
Can anyone explain to the non-technical among us why this is a good thing?
 
R-R's Avatar
R-R is offline R-R
04-17-2010 , 10:02 AM
Posts: 738 | Thanked: 226 times | Joined on Sep 2007 @ Montreal
#5
Originally Posted by dreadnought View Post
Can anyone explain to the non-technical among us why this is a good thing?
efficient optimized playback saves battery, lets you do more while the video is playing, support patent-free formats, competition, level playing field and other buzzwords will follow ;-)
__________________
Please vote for the following Bugs:
Last edited by R-R; 04-17-2010 at 12:12 PM.
 

The Following 3 Users Say Thank You to R-R For This Useful Post:
pinsh is offline pinsh
04-17-2010 , 10:02 AM
Posts: 74 | Thanked: 141 times | Joined on Oct 2009 @ Chicago, US
#6
Originally Posted by dreadnought View Post
Can anyone explain to the non-technical among us why this is a good thing?
Doing video decoding on the DSP (Digital Signal Processor) is a good thing since:
  • It frees up the CPU to do other things (e.g. only 20% CPU is used for full screen video playback).
  • For signal processing related instructions, the DSP is more power efficient than the CPU. Therefore decoding video on the DSP should increase battery life.


Apart from that, that it is possible for anyone (who has the expertise) to develop code for the DSP of the N900 is cool.. and no other phone has DSP accelerated Theora decoding.
 

The Following User Says Thank You to pinsh For This Useful Post:
dreadnought is offline dreadnought
04-17-2010 , 10:45 AM
Posts: 242 | Thanked: 103 times | Joined on Nov 2009 @ Sheffield, UK
#7
Thanks for the explanation guys, sounds pretty cool!
 
www.rzr.online.fr's Avatar
www.rzr.online.fr is offline www.rzr.online.fr
04-20-2010 , 08:18 AM
Posts: 740 | Thanked: 515 times | Joined on Jan 2009 @ fr/35/rennes
#8
what about older OMAP ?

http://talk.maemo.org/showthread.php...ghlight=theora
__________________
http://rzr.online.fr/q/please# Please support my #MeeGo #HarmattanDev #n9 / #n950club contribs :

http://store.ovi.com/content/269879/reviews# #Redak #Text #Editor in #Store for 1 EUR but free sources

http://rzr.online.fr/q/harmattan# Shared Repo over 1K projects .. *update url*
.
Last edited by www.rzr.online.fr; 04-20-2010 at 01:54 PM.
 
ME2g's Avatar
ME2g is offline ME2g
03-01-2011 , 06:56 PM
Posts: 166 | Thanked: 58 times | Joined on Aug 2010 @ Vienna
#9
Originally Posted by pinsh View Post
This is an interesting article on Theora decoding on the DSP of the N900:

http://blog.mjg.im/2010/04/16/theora-on-n900.html

it is also covered on Slashdot:

http://news.slashdot.org/story/10/04...Firefox-Mobile

The N900 is the first phone with DSP accelerated Theora playback
Was there any software for N900 coming out of this?
I did not find anything here or on internet.

http://wss.co.uk/pinknoise/theorarm/ seems to be work in progress.


Thanks in advance
 
pali is offline pali
04-01-2011 , 07:20 AM
Posts: 1,625 | Thanked: 6,168 times | Joined on May 2010
#10
Originally Posted by zimon View Post
That DSP opimized Theora decoder should be ported to gstreamer also, so native media player could play Theora video efficiently also.
So is this DSP Theora decoder working with gstreamer?
Or how can I use this decoder?
 
Reply
Page 1 of 2 1 2

« Previous Thread | Next Thread »
Thread Tools Search this Thread
Search this Thread:

Advanced Search

 
Forum Jump


All times are GMT -4. The time now is 02:38 PM.

Contact Us - Home - Archive - Top