Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

Harry, Flash memory controllers use proprietary algorithms, so it is out of our control. I tried to contact CF manufacturer about another problem I discovered (described in this article: http://archive.linuxgizmos.com/open-source-camera-records-geotagged-video-to-sata-hdd/ ), but they could

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

image size 1136x960 at 7 fps is the normal usage for our application. With the old CF cards, we never had a problem. With the newer CF cards, although it is rare, we have seen communication failure between the image and the camera server/our application.This is a big concern for our existing

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

The reason I was asking this question was that the CF card (SandDisk Ultra at 30MB/sec) we purchased recently started to cause problems with an existing application occasionally in a random fanshion. However, the old CF cards (SanDisk Extreme III at 30MB/sec) doesn't cause any problems. The

Re: [Elphel-support] Get video stream with Opencv

Dear Andry, Thank you for your answer. We have several developments in OpenCV (C++), which use a http client based on cgi. Our previous cameras had an API to connect by this protocol, but we are not sure how to migrate to the Elphel one. We have tried rtsp, but it connects randomly. Also we

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

Andrey, I like to know how to estimate the maximal CF dead time it can tolerate because I think I can measure the excessive writing timeout on the card. We only use fixed image quality and don't skip any frames. If the image size in bytes is about 50KB at 10 fps, for 19MB buffer size, that is

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

Harry, With 10fps it should be 38 seconds. Andrey ___ Support-list mailing list Support-list@support.elphel.com http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

Harry, I need to know the average compressed frame size in bytes, not in pixels as I wrote in one of the previous messages. This depends on the image contents, dimensions as well as on the compression quality. As I wrote earlier, buffer size in the current firmware is 19MB, so it is possible

[Elphel-support] Get video stream with Opencv

Dear all, We received the Elphel stereo camera on Monday 9, and after one week, I can say that I'm desperated. We are not able to get video stream on our OpenCV code correctly. We have surfed through the entire wiki, looking for a solution, but we are completely stuck. Could someone help

Re: [Elphel-support] Is there a way to assign a higher priority to an application on the Elphel board?

I realized that you already answered my question in another e-mail. If there is any new information, please let me know. On Fri, Mar 13, 2015 at 8:09 AM, Harry Kim h...@redzone.com wrote: Hi Andrey, For your information, I attached a simple program that writes data chunk of 200KB 10,000

Re: [Elphel-support] Get video stream with Opencv

Hello Sergio, I'm very sorry you are having these problems. Can you provide more details - what you are trying to achieve, what did you try and what did not work? Andrey ___ Support-list mailing list Support-list@support.elphel.com