| 1 |
<meino.cramer <at> gmx.de> writes: |
| 2 |
|
| 3 |
> I found it before...this is the updated, more recent version: |
| 4 |
> |
| 5 |
http://www.oz9aec.net/index.php/gstreamer/487-using-the-logitech-c920-webcam-with-gstreamer-12 |
| 6 |
|
| 7 |
|
| 8 |
Thanks, I do not keep current with video anymore.... |
| 9 |
|
| 10 |
> It works so far as I can view the stream...but cannot trigger a |
| 11 |
> record. |
| 12 |
|
| 13 |
You cannot record with any of several application or just one in |
| 14 |
particular? |
| 15 |
|
| 16 |
It seems like I vaguely remember somewhere a howto, to setup |
| 17 |
a generic small ram drive to 'enhance' the performance of |
| 18 |
recording on a linux system, but I cannot find the link right now. |
| 19 |
|
| 20 |
I use to have problems with resources where if much of anything else |
| 21 |
was using the HD, even though (record) bandwidth of the mobo sata |
| 22 |
chip and the drive were no where near the limit, I'd have problems with |
| 23 |
sustained video recording. Buffer overload? Registers can't keep up? |
| 24 |
Commerical system all have CAM (Content Addressible Memory) to |
| 25 |
put the memory on steroids for all sorts of low latency performance |
| 26 |
capabilities and gains.... I never tracked down that problem nor found a fix |
| 27 |
that was not too expensive. My guess is it would be a customized, |
| 28 |
minimized, highly tweaked kernel that would work best for video recording |
| 29 |
and latency-bandwidth issues, etc..... I was working on multiple |
| 30 |
medium resolution streams. A singular, hi-res video stream might |
| 31 |
be even more problematic. It would be an interesting test |
| 32 |
to put your recording efforts onto a multi disk (raid) array |
| 33 |
specifically tuned for write speed and see if that fixes your issues? |
| 34 |
Drop the quality way down and see if you can record then. It that works, |
| 35 |
then what I just wrote about is your demon. If not, then it's a bug, |
| 36 |
syntax,decoding or other algorithmic issue..... |
| 37 |
|
| 38 |
Dunno. |
| 39 |
|
| 40 |
> (Background: I am watching crows with this cam, and if anything |
| 41 |
> interesting happens I want to press REC to capture everything to |
| 42 |
> disk) |
| 43 |
|
| 44 |
If you are drawing a paycheck, for watching crows, or just maximizing |
| 45 |
crop yeilds, you are my new, favorite hero....... |
| 46 |
|
| 47 |
Black Crows are one of my favs...... |
| 48 |
Red-headed woodpeckers are a close second....... (we have lots in Florida) |
| 49 |
|
| 50 |
hth, |
| 51 |
James |
Archives