[Elphel-support] Recording fullHD JP4 being limited to 7 seconds

Sun Apr 29 03:38:13 PDT 2012

I remember settings FPS can be a bit tricky at first:

There are 2 modes which require the FPS to be set differently:

In parsedit/autocampars:

Free running mode (default):
FPSFLAGS=1
FP1000SLIM=desired_FPS x 1000

Triggered mode (requires some flags to be set in advance):
FPSFLAGS=0
TRIG_PERIOD=96000000 / desired_FPS

ElphelVision deals with all the above automatically when you go to
Settings->Custom FPS.

Regards Sebastian

On Sat, Apr 28, 2012 at 19:53, flavio soares <qazav3.0 at gmail.com> wrote:
> Hello, everyone,
>
> I've rechecked pretty much everything, found an easy way to connect
> the camera directly to a PC (I'll update the info at the wiki page),
> installed GStreamer and everything is working fine. I haven't really
> studied GStreamer's documentation to feel comfortable about changing
> the parameters, but that will come with time.
>
> So now I can see and debayer the live streaming at a lower resolution,
> as expected. (an observation: the documentation on "how to install"
> and run GStreamer is quite good and the examples work. I have an issue
> on compiling for 32bits, where is the best place to get in touch with
> them? for 64 bits everything if fine).
>
>
> As to recording, I noticed that when I fix a video to be, say,
> 1024x768 in camvc, I refresh Elphel's page in Firefox/Iceweasel and
> that information is updated in the "disk recorder" section. I notice,
> however, that when I set camvc to have:
>
> Video Streamer: on;
> Limit the frame rate: on;
> Frame rate limit: 25 fps;
> Mantain the frame rate: on.
>
> Up there, right below the icons, it shows me this:
> 1024x768 @ 63.591 (in blue color, as expected) fps --- 47k.
>
> I mention this just to be sure I'm passing the right information.
>
> Now, this is what the web page shows me when I update it:
>
> Filename:       -
> Image Resolution:       1024 x 768
> JPEG Quality    80 %
> Framerate:      63.754 fps
> Record Time:    -
> File Size:      -
> Data Rate:      -
> Data Rate:      -
>
> The question is: if I fixed my framerate to be 25 fps, why doesn't it
> update here? Also, I see at the recorded videos that they are being
> recorded at this same fps, see below mplayer's (edited) output:
>
> livre at laika:~/Desktop$ mplayer http://192.168.1.9:var/hdd/1335633763_711797.mov
> Playing http://192.168.1.9:var/hdd/1335633763_711797.mov.
> [lavf] stream 0: video (mjpeg), -vid 0
> VIDEO:  [jpeg]  1024x768  24bpp  63.694 fps    0.0 kbps ( 0.0 kbyte/s)
>
> I guess that by fixing this issue, we'll be quite ready to do a first
> testing recording. =)
>
> Also, I will update my CF card then. It will give us a lot of
> mobility. So, I'll wait for your advice on which card exactly shoulf
> we buy. I believe a 8GB will be good enough, but it can be a 16GB. I
> also found the tests we made here quite important, so I'll also update
> this info at the wiki.
>
> Cheers everyone, and thanks for the help!
>
> flavio
>
> 2012/4/26, Andrey Filippov <support-list at support.elphel.com>:
>> Flavio,
>>
>> That you for the nice words. The link a gave you is posted to the public
>> mailing list, and it is hosted on the public server, so there is no secret
>> about it and you  may show it (all the content on the that server is
>> released under the GNU FDL 1.3). We just did not want to make much buzz
>> about it yet - these are our first images with the new series of the
>> cameras and there is a lot to be done yet, and there are many processing
>> parameters to tweak - i took them from the previous camera settings (i.e.
>> some de-mosaic artifacts are visible). But we definitely consider it a
>> proof that our concepts worked, the difference with the first Eyesis that
>> had the same sensors and same lenses (not to count the top fisheye) is
>> significant. We will publish more details later - so far we were very busy
>> as we had to make our first customers to wait extra 4 months - we had to
>> completely redesign and re-build the critical part of the cameras - the
>> sensor front end mechanics.
>>
>> We are going to demonstrate the new camera together with the camera
>> calibration machine and the process of calibration at this year SIGGRAPH in
>> Los Angeles (https://www.google.com/search?q=siggraph+elphel) - the booth
>> number is different as we had to increase the size - could not fit in 3x3
>> meters.
>>
>> Andrey
>>
>> On Thu, Apr 26, 2012 at 2:48 AM, flavio soares <qazav3.0 at gmail.com> wrote:
>>
>>>
>>>>  With Eyesis we use 97-98%, but that is only because we use aberration
>>>> correction by de-convolution that amplifies the noise and artifacts. BTW
>>>> -
>>>> here are our last panoramas made with the new camera (viewing requires
>>>> good
>>>> videocard and WebGL-capable browser)
>>>> http://community.elphel.com/files/eyesis/pano-db-3/webgl_panorama_editor.html?kml=mainstreet_ro.kml&proto=mainstreet_ro.kml&ntxt=2&as_camera=95&start=result_1334548264_780764_1.jpeg&range=95&labels=false&keepzoom=false&closest2d=false&seethrough=0.4&transition=5&mask=&azimuth=23.2&elevation=-70.5&zoom=0.386&follow=false&mv3d=false
>>>>
>>>
>>> o.O
>>>
>>> Man, this is really impressive. Is this link public, I mean, can I show it
>>> around?
>>>
>>> _______________________________________________
>>> Support-list mailing list
>>> Support-list at support.elphel.com
>>> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
>>>
>>>
>>
>
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