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Longer recording time with different filesystem
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Lorenzo Di Pietro  
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 More options Apr 11 2012, 4:50 pm
From: Lorenzo Di Pietro <lore...@lorenzodipietro.it>
Date: Wed, 11 Apr 2012 22:50:57 +0200
Local: Wed, Apr 11 2012 4:50 pm
Subject: Longer recording time with different filesystem

Hi guys,
I'm not a ARM developer (just a journalist, although i was an engineer) and I'm new to Magic Lantern, as I bought a canon 5D just a week ago. I'm testing Magic Lantern right now and, oh boy, it's great!

About the recording limit to 4Gb fixed by the FAT32 filesystem, I was just wondering if could it be possible to allow the 5D to write to another filesystem like NTFS, or other Apple/Linux filesystem. I suppose that an NTFS or whatever module could be taken from any other ARM device, like my very old stupid Network Attached Storage, which recognizes lots of file system.

What do you think?

--
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email: lore...@lorenzodipietro.it
web: www.lorenzodipietro.it
mobile: (+39) 3284137514
skype: lorenzodp


 
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Huey Lee  
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 More options Apr 12 2012, 2:24 am
From: Huey Lee <modol...@gmail.com>
Date: Thu, 12 Apr 2012 16:24:21 +1000
Local: Thurs, Apr 12 2012 2:24 am
Subject: Re: [ML] Longer recording time with different filesystem

I think it's hard to do so, otherwise Canon themselves could have
implemented that for 5D3 or 1DX. Would be great if it's possible though

On Thu, Apr 12, 2012 at 6:50 AM, Lorenzo Di Pietro <


 
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Wesley Clouden  
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 More options Apr 12 2012, 2:34 am
From: Wesley Clouden <wesley.clou...@gmail.com>
Date: Thu, 12 Apr 2012 02:34:57 -0400
Local: Thurs, Apr 12 2012 2:34 am
Subject: Re: [ML] Longer recording time with different filesystem

yep that been on my mind for last 6 weeks cooking some 7D version
but your have a point

On Wed, Apr 11, 2012 at 4:50 PM, Lorenzo Di Pietro <

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g3gg0  
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 More options Apr 12 2012, 4:39 am
From: g3gg0 <g3gg0...@gmail.com>
Date: Thu, 12 Apr 2012 01:39:10 -0700 (PDT)
Local: Thurs, Apr 12 2012 4:39 am
Subject: Re: [ML] Longer recording time with different filesystem

"too hard" is in my opinion never the reason for file system decisions in
consumer devices.
FAT is common, robust and is relatively cheap to license :)

Am Donnerstag, 12. April 2012 08:24:21 UTC+2 schrieb Huey Lee:


 
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nanomad  
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 More options Apr 12 2012, 6:24 am
From: nanomad <condel...@gmail.com>
Date: Thu, 12 Apr 2012 12:24:33 +0200
Local: Thurs, Apr 12 2012 6:24 am
Subject: Re: [ML] Longer recording time with different filesystem
And it's better for flash drives too

 
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nicolas pena  
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 More options Apr 12 2012, 12:43 pm
From: nicolas pena <nicolas.penaor...@gmail.com>
Date: Thu, 12 Apr 2012 18:43:57 +0200
Local: Thurs, Apr 12 2012 12:43 pm
Subject: Re: [ML] Longer recording time with different filesystem

There has been already working versions with exFAT (which does not have
this limit) but it looks that the recording is halted by a counter. That
is, the software does not try to write to the card over that limit so the
problem persist even though the memory card file system does not impose
such a restriction.
Maybe we could look at the firmware looking for the constant (4*1024*1024)
which could be being used to compare the present file size plus what is
going to be written prior to the commit of data to the card and place a
higher one IF a exFAT partition is being used (wild guess).

Nicolas.

On Wed, Apr 11, 2012 at 10:50 PM, Lorenzo Di Pietro <


 
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Chucho Saldana  
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 More options Apr 12 2012, 4:06 pm
From: Chucho Saldana <chuchosaldan...@gmail.com>
Date: Thu, 12 Apr 2012 13:06:38 -0700 (PDT)
Local: Thurs, Apr 12 2012 4:06 pm
Subject: Re: Longer recording time with different filesystem
The ARM926EJ-S can access external USB hdd. There some function that
call for hdd drive with in the eos firmware which look different from
the ptp computer hdd function.

 
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Jim Burnes  
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 More options Apr 12 2012, 12:46 pm
From: Jim Burnes <jvbur...@gmail.com>
Date: Thu, 12 Apr 2012 10:46:55 -0600
Local: Thurs, Apr 12 2012 12:46 pm
Subject: Re: [ML] Longer recording time with different filesystem

The ultimate solution is to purchase an HDMI digital video recorder and
records the live view stream (with on-screen information turned off -- see
the docs).

If you're not recording, there is no recording counter to time-out.

Both Atomos and Blackmagic have solutions for this.  Plan to pay around
$350 for the BlackMagic and $999 for the Atomos (better solution IMHO).

erisian

On Thu, Apr 12, 2012 at 10:43 AM, nicolas pena
<nicolas.penaor...@gmail.com>wrote:


 
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Lorenzo Di Pietro  
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 More options Apr 12 2012, 4:28 pm
From: Lorenzo Di Pietro <lore...@lorenzodipietro.it>
Date: Thu, 12 Apr 2012 22:28:18 +0200
Local: Thurs, Apr 12 2012 4:28 pm
Subject: Re: [ML] Longer recording time with different filesystem

It sounds like saying that is stupid to find cheaper solutions, although we can. Why should i put extra stuff, more gadget to recharge (wishing the charge is enough for the time i need it), and spend tons of € ($) buying huge and fast SSDs, when with some workaround i can probably get what I want in my CF card?

Just a personal example: I've to get to a refugee camp in Africa, I have to be light, easy moving and the less possible things to charge and batteries to check while working.The less the better.

Il giorno 12/apr/2012, alle ore 18:46, Jim Burnes ha scritto:

The ultimate solution is to purchase an HDMI digital video recorder and records the live view stream (with on-screen information turned off -- see the docs).

If you're not recording, there is no recording counter to time-out.

Both Atomos and Blackmagic have solutions for this.  Plan to pay around $350 for the BlackMagic and $999 for the Atomos (better solution IMHO).

erisian

On Thu, Apr 12, 2012 at 10:43 AM, nicolas pena <nicolas.penaor...@gmail.com> wrote:

There has been already working versions with exFAT (which does not have this limit) but it looks that the recording is halted by a counter. That is, the software does not try to write to the card over that limit so the problem persist even though the memory card file system does not impose such a restriction.
Maybe we could look at the firmware looking for the constant (4*1024*1024) which could be being used to compare the present file size plus what is going to be written prior to the commit of data to the card and place a higher one IF a exFAT partition is being used (wild guess).

Nicolas.  

On Wed, Apr 11, 2012 at 10:50 PM, Lorenzo Di Pietro <lore...@lorenzodipietro.it> wrote:
Hi guys,
I'm not a ARM developer (just a journalist, although i was an engineer) and I'm new to Magic Lantern, as I bought a canon 5D just a week ago. I'm testing Magic Lantern right now and, oh boy, it's great!

About the recording limit to 4Gb fixed by the FAT32 filesystem, I was just wondering if could it be possible to allow the 5D to write to another filesystem like NTFS, or other Apple/Linux filesystem. I suppose that an NTFS or whatever module could be taken from any other ARM device, like my very old stupid Network Attached Storage, which recognizes lots of file system.

What do you think?

--
Lorenzo Di Pietro
email: lore...@lorenzodipietro.it
web: www.lorenzodipietro.it
mobile: (+39) 3284137514
skype: lorenzodp

--
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