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Chdk for SX130 IS ?

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Re: Chdk for SX130 IS ?
« Reply #870 on: 10 / September / 2011, 02:06:32 »
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sorry for butting in,
as the talk for movie mode is going on - does CHDK support controlling the fps - can i set the move to 5fps for eg.

there does seem to be a propertycase for it(listed for Digic II not for IV on te propertycase wiki) but will it work if i set it to an arbitary value maybe 5fps or 7fps. 

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Offline srsa_4c

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Re: Chdk for SX130 IS ?
« Reply #871 on: 10 / September / 2011, 08:10:52 »
sorry for butting in,
as the talk for movie mode is going on - does CHDK support controlling the fps - can i set the move to 5fps for eg.
I can only tell my experiences with my old cameras and the SX100IS. The old A420 survives setting the framerate propcase, but the effect is not what one would expect. First, several routines in the firmware check the framerate, and only accept those that are supported (in the A420 this means 10, 15, 20, 30, 60 fps). Other values cause an assert. Setting something that the camera doesn't support (like 320x240, 10fps) cause a strange mode to appear (which is ~5fps and only uses the top of the sensor, so the picture is vertically distorted). Setting 30fps at 640x480 causes 30fps with upsampled(!) 640x480 picture (actual resolution is around 320x240). The setting takes effect on half-shoot. Recording is possible, and what the most fun is, it doesn't know the actual framerate (so at a setting of 640x480, 30fps the elapsed time display counts at triple speed (the 640x480 mode is 10fps originally). As this model doesn't have audio recording capability, I don't know what happens with that.

On the other hand, setting the framerate propcase on the SX100 causes the camera to stop responding after the first half-shoot (and I get a preview picture with vertical synch lost).
Quote
there does seem to be a propertycase for it(listed for Digic II not for IV on te propertycase wiki) but will it work if i set it to an arbitary value maybe 5fps or 7fps. 
Try it, you'll get a crash. The setting should be changed elsewhere, but I haven't managed to find it yet. Any suggestions?  :)

Seriously, it would be big help if somebody would find the part of the firmware that sets the sensor/ADC/DSP parameters...

IMO the time limit is probably due to heat
Maybe. But what would prevent the user to hit the record button again?  ;)

Re: Chdk for SX130 IS ?
« Reply #872 on: 10 / September / 2011, 09:49:13 »
Canon is probably counting on some kind of cooling pause between recordings.  Wish I could set the 130 on a tripod using HD video (wide is sometimes good) and 50% quality, push the record button and not come back for a few hours.  The closest I can come to this is using miniature mode which has the stupid out of focus edges.   SRSA info on frame rates is very interesting.   Would be a great break-through to be able to control fps without any glitches.

Re: Chdk for SX130 IS ?
« Reply #873 on: 10 / September / 2011, 11:05:36 »
@srsa
i would certainly like to try setting it. i would think the SX 130 would behave in a simiar manner to the SX 100 and i woulld certainly get a crash as you have reported.

still i would like to try finding out the propcase for the frame rate if i can.

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Offline srsa_4c

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Re: Chdk for SX130 IS ?
« Reply #874 on: 10 / September / 2011, 11:16:08 »
Simple ubasic script for setting an integer propcase (first param is the propcase number, second is the value):
Code: [Select]
@title set a propcase
@param a Propcase num
@default a 1
@param b Propcase val
@default b 0
set_prop a b

http://chdk.wikia.com/wiki/PropertyCase

Oh, and what I got was worse than a crash, I had to open the battery door  :'(
« Last Edit: 10 / September / 2011, 11:18:59 by srsa_4c »

Re: Chdk for SX130 IS ?
« Reply #875 on: 20 / September / 2011, 05:23:00 »
There is a bug with reboot function. When camera is in play mode with lens retracted it reboots normally. Otherwise it freezes and I need to remove battery to turn it on again.
if (2*b || !2*b) {
    cout<<question
}

Compile error: poor Yorick

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Pilda

Re: Chdk for SX130 IS ?
« Reply #876 on: 20 / September / 2011, 17:17:16 »
outslider:
what reboot function do you mean?

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Offline reyalp

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Re: Chdk for SX130 IS ?
« Reply #877 on: 20 / September / 2011, 23:18:29 »
There is a bug with reboot function. When camera is in play mode with lens retracted it reboots normally. Otherwise it freezes and I need to remove battery to turn it on again.
You could try calling the StoreLensForShutdown eventproc first. See http://chdk.setepontos.com/index.php?topic=6857.msg73227#msg73227

Edit:
I would suggest making sure you are in play mode before calling that.
Don't forget what the H stands for.

Re: Chdk for SX130 IS ?
« Reply #878 on: 21 / September / 2011, 04:12:46 »
Does it require native function call to be enabled? I'm not sure if it is enabled on the official build... I have no camera here, so I'm asking before I'll try.
if (2*b || !2*b) {
    cout<<question
}

Compile error: poor Yorick

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Pilda

Re: Chdk for SX130 IS ?
« Reply #879 on: 21 / September / 2011, 05:26:56 »
Thank you for ignoring me. I just wanted to help and test it with my camera.
« Last Edit: 21 / September / 2011, 05:40:08 by Pilda »

 

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