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Forum > Sony Ericsson / Sony > Software, Firmware and Drivers > Modded Camera Driver for k800i/k810i

Author Modded Camera Driver for k800i/k810i
Power_VANO
K800 Black
Joined: Jun 02, 2007
Posts: 144
From: Georgia
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Posted: 2007-08-22 23:22
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mongoose3800
cam_ss_jpeg_buffer_size_1=249F0; // 150 KB buffer for 640x480 snap
cam_ss_jpeg_buffer_size_2=61A80; // 400 KB buffer for 1280x960 snap
cam_ss_jpeg_buffer_size_3=927C0; // 600 KB buffer for 1632x1244 snap
cam_ss_jpeg_buffer_size_4=DBBA0; // 900 KB buffer for 2000x1500 snap
cam_ss_jpeg_buffer_size_5=DBBA0; // 900 KB buffer for 2048x1536 snap


These are buffer size limits. Play with them around and check if your phone can handle 1 MB buffer or more the more buffer size the phone can handle the lower compression you can use
I do it from behind...

Permanent CamDriver Download Location:
http://downloads.wow-info.net/se/drivers/camera/
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 01:49
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Increased my buffer to 1MB, compression to 95%

This is a crop of a 90% picture (stock Driver):


This is a crop of a picture using 95% driver:


Now, at first glance the 95% driver seems a lot clearer, and this is exactly what I am hoping less compression can achieve. But before we get excited, I'd like to do more testing to ensure this result is easily repeatable.

mongoose3800
K800 Black
Joined: Nov 29, 2005
Posts: 416
From: Australia
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Posted: 2007-08-23 01:51
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I have played with the buffer size. I've been able to set the buffer to 1.5mb with no problems. The catch is you can't even set the max image size to 950 without making the camera instable.
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 01:54
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On 2007-08-23 01:51:19, mongoose3800 wrote:
I have played with the buffer size. I've been able to set the buffer to 1.5mb with no problems. The catch is you can't even set the max image size to 950 without making the camera instable.

I've got a 98% driver in at the moment, with only 1MB buffer, it seems to be working okay. But I have yet to take a lot of photos with it.
[c3]
K800 Black
Joined: Aug 18, 2004
Posts: 181
From: Kuwait
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Posted: 2007-08-23 01:55
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wohow, thats great good job max
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 01:58
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yes but fon't get too excited. I did a few pics and it seems to be true, but I haven't done enough comparisons to eliminate poor focus etc.

Looks promising, but more comparisons needed. Also, as mongoose says, driver may be unstable.
kopritis
K800 Black
Joined: Mar 11, 2007
Posts: 295
From: Loutsa-Greece
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Posted: 2007-08-23 01:59
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2.7 mod driver download:
http://rapidshare.com/files/50657666/camdriver0.rar.html


this is sample of my mod 2.7
The image was taken with K810i r6bc002 cid52



original size download: http://rapidshare.com/files/50657522/DSC00829.JPG.html

max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 02:01
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1. what did you mod in the driver?

and

2. can you post comparison of the same picture with standard driver also?
mongoose3800
K800 Black
Joined: Nov 29, 2005
Posts: 416
From: Australia
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Posted: 2007-08-23 02:03
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I've been able to get 99% and 100% working. But I couldn't get the image size to increase. So I kept trying to set the max image size value and increase the buffer size. I didn't think to try just the buffer size. It is interesting to note that even though the max image size is set at 900kb the camera can produce larger files off the original driver. I have a couple of images over 1mb in size.

MAX: What image sizes are you getting? I'm going to have to play again now. I'm about to try 99% with 1.5mb buffer.

max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 02:10
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Image sizes don't seem to be any larger than stock?

I think the buffer is more like a swap file - it probably doesn't need the whole image to fit in the buffer all at once.
kopritis
K800 Black
Joined: Mar 11, 2007
Posts: 295
From: Loutsa-Greece
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Posted: 2007-08-23 02:19
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On 2007-08-23 02:01:19, max_wedge wrote:
1. what did you mod in the driver?

and

2. can you post comparison of the same picture with standard driver also?



1. the sharpeness and the contrast settings improved

2.i can't right now because it's night.
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 02:30
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Cool
mongoose3800
K800 Black
Joined: Nov 29, 2005
Posts: 416
From: Australia
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Posted: 2007-08-23 02:41
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Well I don't get it. I just tried 1.5mb buffer and 99% compression. Did four sample shots and all for were smaller file sizes than photo's taken with original driver. I'm talking about 100-150kb smaller. So, I wonder what would happen if I dropped the number from 90 to 85?
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Posted: 2007-08-23 02:57
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odd. I noticed that in some(but not all) of the comparisons I did.

I wonder if 85% means LESS compression than 90%? Though I wouldn't imagine image compression would be read as image is compressed by 90% I would more have thought it means image is 90% of RAW. Meaning that higher percentage = less compression.

But maybe not?
rockygali
K810 Blue
Joined: Nov 21, 2005
Posts: > 500
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Posted: 2007-08-23 04:36
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ok guys lemme jump in for a moment...

@max and mongoose

what are you guys trying to achieve?! small compression but sharper pics?

koptris right here just made a minor tweak but it was gud. i mean the wall from afar is not over casted, tho i think using my K810 itll be overcasted.

@koptris
try night scenes.
"Darkness is the absence of light.. and not the opposite..."
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