[Elphel-support] problems with the HDD

Tue Jan 31 03:38:22 PST 2012

On Mon, Jan 30, 2012 at 16:45, Carlos Padial <palidoestudio2 at gmail.com> wrote:
> ok, thank for the fast answer. Your explanation makes a lot of sense.
> Now i can record again from camogmgui
>
> but i cant find were to set fps or shutter in the camcv, but now it
> lets me to capture in HD at 13fps...

Shutter is the exposure time, the first slider with the "sun" symbol.
I am pretty sure you have an exposure time of longer than 40 ms thats
why the FPS decreases automatically.

>
> elphelvision gets the streaming but remains writing 0byte files even
> with the resolutions changed,
> but i find something strange...
> if i delete autosave.config and start elphelvision, it doesnt show me
> the stream (the no-video image is there) but then the recording is
> working correctly (but without stream)...

DisableLiveVideo=true

Thats why you see the image instead of the stream.

Stream and recording are 2 different things, they should not influence
each other in any way.

>
> i send you the two config files as i think some value is making all
> this, but i cant find it...
>
> I know elphelvision is a different project, but as the issues with the
> hdd where also in camogm i did know where to look...
> must i open an issue in the bugtracker?

Not yet, lets narrow down the source of the problem before we add any
issues to the bug tracker.

>
> it is common for the camogm not to update the hdd status?

actually: no but there seems to be a problem that triggers these symptoms.

Regards Sebastian

>
> thanks again
>
> 2012/1/30 Sebastian Pichelhofer <sebastian.pichelhofer at gmail.com>:
>> HI Carlos
>>
>> Good to see you are starting your hands-on with the camera ;)
>>
>>
>> ElphelVision is an Apertus product not an official Elphel one (I know
>> the name is especially confusing....we might have to rename it). So
>> the correct place to report bugs is:
>> http://bugs.apertus.org/thebuggenie/index.php
>>
>> The md5s are written by the Apertus in-camera scripts after recording
>> finished (under normal conditions).
>>
>> If the datarate is too high the circbuffer will immediately overflow
>> not writing anything to disk ( but the mov/jpeg header - which would
>> explain the few bytes you reported). This can be the case if JPEG
>> quality ratio is too high.
>>
>>
>> Since the camera returns to its default state after it has been
>> rebooted can you please test if everything works fine when you try
>> recording with a freshly booted camera with these settings applied in
>> camvc:
>> 1920x1088
>> 25fps
>> RGB color mode
>> 80% jpeg quality
>>
>> Why PHP and filezilla cannot see the files would need some further
>> investigation....
>>
>>
>> Regards Sebastian
>>
>> On Mon, Jan 30, 2012 at 13:43, Carlos Padial <palidoestudio2 at gmail.com> wrote:
>>> Hi
>>>
>>> I am in the first days with the 353 and i have been recording some
>>> videos the last two days
>>> and the hdd has been working right, but with some issues when camogm
>>> mount the devices.
>>>
>>> At first it doesnt recognice the device one each three times... then i
>>> started using elphelvision, the first time i start elphelvision, it
>>> doesn't recognice the hdd,
>>> but then i restart elphelvision and everything works. I managed to
>>> record some videos correctly. Also from camogm when it recognices the
>>> hdd.
>>>
>>> After that i tried some strange combinations of fps and resolutions
>>> (in elphelvision) and the mov files become blank...
>>> it creates a lot of mov files without md5 file, and the same size.
>>> also strange md5 files over md5 files... like
>>>
>>> 1327874552_117892.mov
>>> 1327874552_117892.mov.md5
>>> 1327874552_117892.mov.md5.md5
>>> 1327874552_117892.mov.md5.md5.md5
>>>
>>> now i cannot record with elphelvision, even sometimes it starts
>>> recording from the very start of the application...
>>>
>>> camogm no more detects the hdd. but it lets me to create folders...
>>> then it remains showing "nothing mounted" and nothing behind...
>>> if i use the php file browser i cant see the folder just created... if
>>> i use filezilla ftp i cant see it.
>>> but if i use telnet the folder is there...
>>>
>>> It also happens with movies in camogmgui, i can record (the UI changes
>>> to Record and so)
>>> but mov files are created, always with 784 bytes and ogm's with
>>> 145bytes, and no signal.
>>>
>>> when Streaming the camera works properly.
>>>
>>> I tried to format the hdd, following the wiki
>>> http://wiki.elphel.com/index.php?title=HDD_Format
>>> i dont know what to do in step 3.
>>>
>>> my cat /proc/partitions says:
>>>
>>> $ cat /proc/partitions
>>> major minor  #blocks  name
>>>
>>>   3     0  117220824 hda
>>>   3     1  117220820 hda1
>>>  31     0     131072 mtdblock0
>>>  31     1        256 mtdblock1
>>>  31     2       7936 mtdblock2
>>>  31     3      24576 mtdblock3
>>>  31     4      81920 mtdblock4
>>>  31     5      12288 mtdblock5
>>>
>>> i followed the wiki without any special commands in step3 and it seems
>>> to work , but im not sure.
>>> how can i chek the disk? ¿why i cannot see some files in the php
>>> browser or filezilla?
>>>
>>> the disk doesn seems to be damaged, as i can use it to copy files from
>>> ftp, it seems  to work right.
>>>
>>> but all videos are mov files 784 bytes and ogm's 145bytes, and black :(
>>>
>>> what do you think?
>>>
>>> thanks in advance.
>>> carlos padial.
>>>
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