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500d development

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Offline Coutts

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Re: 500d development
« Reply #350 on: 25 / February / 2011, 11:30:50 »
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Good call. Well I think the bit rate setting might be doing something, I took some test videos just now, 1080p @ 20fps (ffffuuu canon, it still blows my mind how they got away with selling a 20fps video camera.. suckered me in I guess..)

anyway my CBR videos were 37-38Mbit/s, while setting the VBR to -16 I had 56-58Mbit/s (even one at 80Mbit/s, but it was only about 3 seconds long :P). I'm just using quicktime to show me the bit rate. I don't know if I notice any difference, I guess I don't fully understand what the bit rate controls? Is it something to do with quality?

And also thank you for the education on that alins. I actually spent all of last night (i didnt' sleep) trying to setup the console..damn thing wouldn't work. no matter what I tried I couldn't get this one python module to install, I worked on it for seriously about 5 or 6 hours straight.

I'll look into IDA Pro and see what turns up in that direction!


I just got an error 70 while playing around with clear view while shooting a video, hm. i'll see if i can reproduce it again.
« Last Edit: 25 / February / 2011, 11:36:17 by Coutts »
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alins

Re: 500d development
« Reply #351 on: 25 / February / 2011, 11:43:28 »
o ya, the console is a b^tch to setup :) i remember that i spent few hours also on getting this to work.  the problem is that some of the packages listed in arm console page don't exist anymore or they are under a slightly different name (at least under ubuntu).

i would guess you have problems with the same python module that i had (the mathplotlib something package). you are on mac right?. i would suggest try and see if you can get the package trough the mac ports or whatever is the name of that package that can be used to install open source stuff. on ubuntu i installed the python-matplotlib package(s) with apt-get and the console start working.
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Offline a1ex

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Re: 500d development
« Reply #352 on: 25 / February / 2011, 11:54:29 »
To display shutter count, it should work by press MENU and then DISP. This is the documented way (read the PDF from a recent 550D build).

Before messing with properties, read this: http://groups.google.com/group/ml-devel/browse_thread/thread/cce670e003877214/d53add4018eb30f9?show_docid=d53add4018eb30f9 (it just scared me a bit)
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Offline LaLaPico

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Re: 500d development
« Reply #353 on: 25 / February / 2011, 12:11:41 »
Rate control would really only benefit 1080p recording, correct? I assume with 720p there would be no benefits to using a higher bit rate for the recording.
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Offline Coutts

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Re: 500d development
« Reply #354 on: 25 / February / 2011, 12:43:25 »
No, but 24p would be nice. All I really want out of the video features are manual exposure control and 24p.
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Offline pat_loonytoon

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Re: 500d development
« Reply #355 on: 25 / February / 2011, 12:56:54 »
Step up to join the thousand other T1i owners :)
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alins

Re: 500d development
« Reply #356 on: 25 / February / 2011, 13:18:21 »
Quote from: Coutts on 25 / February / 2011, 11:30:50

anyway my CBR videos were 37-38Mbit/s, while setting the VBR to -16 I had 56-58Mbit/s (even one at 80Mbit/s, but it was only about 3 seconds long :P). I'm just using quicktime to show me the bit rate. I don't know if I notice any difference, I guess I don't fully understand what the bit rate controls? Is it something to do with quality?

i'm guessing you played with qscale here?.  if that's true you can read more about what qscale in 550d use guide: http://magiclantern.wikia.com/wiki/550D/UserGuide#Movie

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Offline LaLaPico

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Re: 500d development
« Reply #357 on: 25 / February / 2011, 13:23:47 »
I would hope that, by the time 5DtoRGB (http://rarevision.com/5dtorgb/) is available for Windows, that there is something figured out (on 24p). Because I believe that 5DtoRGB only improves 1080p videos. But I am unsure of that, because I can't test the program.

It might be the same as rate control --- 720p doesn't benefit of these improvements because the resolution is too small to make these improvements noticeable.
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Offline silasje1

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Re: 500d development
« Reply #358 on: 25 / February / 2011, 14:16:04 »
nice job all! im new to this sort of things. i wanna ask this:
if i install the firmware of magic latern, and it fails, can i install the firmware 1.1.0 off canon website? or is this a fairy tail?
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Offline madnish30

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Re: 500d development
« Reply #359 on: 25 / February / 2011, 14:18:53 »
Off topic: But the 600D is out. Interesting look at the new features ( think somethings have changed in the video mode ! )
http://www.youtube.com/watch?v=Arr6ZYuabQY#
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Canon EOS 500D/T1i - What a  DSLR.
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