[Elphel-support] Record and watch simultaneously?

[Sebastian Pichelhofer]

Circbuffer is in rather fast RAM so access times are not really an issue
here I think, even with the embedded Etrax CPU.

Regards Sebastian

On Sat, Mar 19, 2011 at 15:27, Brian Burke <burke.brian.a at gmail.com> wrote:

> Great to hear - thanks Sebastian. I figured if there were "problems", it'd
> be due to the processor not being able to keep pace, or with two processes
> trying to grab images from the circbuf at the same time.
>
>
> On Mar 19, 2011, at 9:54 AM, Sebastian Pichelhofer <
> sebastian.pichelhofer at gmail.com> wrote:
>
> Yes, works very well.
>
> Ethernet is 100Mbit/s and storage media max ~144Mbit/s (also depends on how
> fast you can write to your HDD/SSD/CF card)
>
> So if you get near the max. of Ethernet bandwidth with your video stream
> you could have short shuttering in your live video but not in your camogm
> recording.
>
> If you get over the bandwidth limit of ~144Mbit/s, the circbuffer will
> overflow and camogm will have to restart recording loosing a bunch of
> frames.
>
>
> A tool that might be interesting for this is the buffer monitor which helps
> monitor the state of the circbuffer:
> <http://wiki.elphel.com/index.php?title=Buffer_monitor>
> http://wiki.elphel.com/index.php?title=Buffer_monitor
>
> Regards Sebastian
>
> On Sat, Mar 19, 2011 at 13:52, Brian Burke < <burke.brian.a at gmail.com>
> burke.brian.a at gmail.com> wrote:
>
>> If recording to storage media using camogm, can one also watch the
>> stream live using rtsp without any problems? "problems" being dropped
>> frames in the recording, reduced frame rate, etc.
>>
>> _______________________________________________
>> Support-list mailing list
>>  <Support-list at support.elphel.com>Support-list at support.elphel.com
>> <http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com>
>> http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://support.elphel.com/pipermail/support-list_support.elphel.com/attachments/20110319/95c42d90/attachment-0002.html>