maemo.org - Talk

maemo.org - Talk (https://talk.maemo.org/index.php)
-   Applications (https://talk.maemo.org/forumdisplay.php?f=41)
-   -   fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc) (https://talk.maemo.org/showthread.php?t=58983)

toxaris 2010-07-30 08:28

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
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.

Ministeri 2010-07-30 10:15

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
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!

Milhouse 2010-07-30 13:14

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Quote:

Originally Posted by toxaris (Post 770013)
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.

andyph666 2010-08-03 02:41

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
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.

silent tim 2010-08-03 07:55

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Quote:

Originally Posted by andyph666 (Post 773805)
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

col37400 2010-08-05 00:39

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
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?

daperl 2010-08-05 04:00

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Quote:

Originally Posted by Milhouse (Post 770257)
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.

Milhouse 2010-08-05 11:13

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Quote:

Originally Posted by daperl (Post 776131)
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.

silent tim 2010-08-07 13:04

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Has anyone noticed a slight vignetting effect on pictures taken from fcamera when not in direct sunlight (darker edges, brighter centre)?

daperl 2010-08-07 13:43

Re: fcam & fcamera and HDRcapture Thread (Bugs, Ideas..etc)
 
Yes, I have. Very strange.


All times are GMT. The time now is 12:07.

vBulletin® Version 3.8.8