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Posts: 424 | Thanked: 196 times | Joined on Mar 2010 @ Sweden
#51
Be aware.
I Unplugged my phone from the powercord this morning and notice that it was quite hot, or atleast warmer the usual.
Later today I notes that the battery drained very fast today so I started Conky to see it there was a process that might eating my phone. And yes HDRCapture did 100% CPU most of the time. And suddenly I remember that I used FCAM apps yesterday.
So when you have used some FCAM related apps, be sure to check processlist after.
 
Posts: 87 | Thanked: 277 times | Joined on Feb 2010 @ Helsinki, Finland
#52
fcams image browser is awesome.

It's way smoother and faster than default Maemo 5 Images app. Someone should replace default Images app with something like this. Swipe effect, zooming etc. are great!
 
Posts: 3,401 | Thanked: 1,255 times | Joined on Nov 2005 @ London, UK
#53
Originally Posted by toxaris View Post
And suddenly I remember that I used FCAM apps yesterday.
So when you have used some FCAM related apps, be sure to check processlist after.
Presumably by this you mean "I took a boat load of pictures with the hdrcapture app"?

As you've discovered each hdrcapture image takes a long while to process in the background. I never got a reply to my question as to whether FCam uses or can use any hardware acceleration but it could certainly use its help as the N900 battery probably won't last long enough to take more than a dozen hdrcapture images. Perhaps an option to delay background processing until the N900 is on AC power would be useful.
 

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#54
is it not possible to view the pictures taken with fcamera? I've installed the fcam drivers, hdrcapture and lowlight but cant see where the viewer is? Thanks.
 
Posts: 14 | Thanked: 7 times | Joined on Jul 2010
#55
Originally Posted by andyph666 View Post
is it not possible to view the pictures taken with fcamera? I've installed the fcam drivers, hdrcapture and lowlight but cant see where the viewer is? Thanks.
swipe up while in fcamera to view delete or share images if you dont have access to open dng files

swipe down to enable auto jpg

hdr pics go in camera, lowlight pics go in images -both as jpg, so should be automatically picked up from gallery
 
Posts: 169 | Thanked: 83 times | Joined on Dec 2009
#56
i keep getting notified of an update to the fcam drivers...but can't install it because of a conflict with the 'power users' kernel I also have installed.

Do I understand correctly that any updates to the fcam drivers have to be incorporated into the 'power users' kernel before I can use them? The other option being that I uninstall the power users kernel?
 
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Posts: 2,427 | Thanked: 2,986 times | Joined on Dec 2007
#57
Originally Posted by Milhouse View Post
I never got a reply to my question as to whether FCam uses or can use any hardware acceleration
Can it? Should be able to. The Standford class where this comes from did a project on this very subject.

Does it?

I think the answer is yes and no. If you're referring to JPEG creation on the dsp, I don't think they are. There just using Nokia's closed source libjpeg62 and it doesn't have any reference to /lib/dsp/jpegenc_sn.dll64P. But Nokia's closed source libjpeg62 does seem to be using NEON calls to help with the discrete cosine transform (DCT):

jpeg_fdct_ifast_neon
jpeg_idct_4x4_neon
jpeg_idct_ifast_neon

The debian version of libjpeg62 doesn't have these calls.
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#58
Originally Posted by daperl View Post
Can it? Should be able to. The Standford class where this comes from did a project on this very subject.

Does it?

I think the answer is yes and no. If you're referring to JPEG creation on the dsp, I don't think they are. There just using Nokia's closed source libjpeg62 and it doesn't have any reference to /lib/dsp/jpegenc_sn.dll64P. But Nokia's closed source libjpeg62 does seem to be using NEON calls to help with the discrete cosine transform (DCT):

jpeg_fdct_ifast_neon
jpeg_idct_4x4_neon
jpeg_idct_ifast_neon

The debian version of libjpeg62 doesn't have these calls.
The jpg conversion doesn't seem to be a problem (the jpg images appear quickly etc, even when saving in RAW at the same time)

It's the background processing that appears as though it would benefit the most from hardware acceleration as this seems to be all CPU based - for instance, hdrcapture and lowlight both grind away in the background for sometimes minutes at a time and frankly kills the battery in short order.
 
Posts: 14 | Thanked: 7 times | Joined on Jul 2010
#59
Has anyone noticed a slight vignetting effect on pictures taken from fcamera when not in direct sunlight (darker edges, brighter centre)?
 
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Posts: 2,427 | Thanked: 2,986 times | Joined on Dec 2007
#60
Yes, I have. Very strange.
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