Tag: Configuration

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H.264 Camera Configuration for Time-lapse Recording

H.264 compression uses a Group of Pictures (GOP) or Group of Video (GOV) to define how many P-frames are sent between each I-frame. (I-frames are complete pictures, whereas P-frames are partial frames reconstructed based on the last I-frame and all the P-frames in between.) Time-lapse recording stores I-frames. If time-lapse recording is configured at short intervals (about 30 seconds or less) on H.264/MPEG-4, time-lapse scheduling might not be able to record as fast as desired.

To ensure time-lapse records at the desired rate, the camera must be configured for a GOP/frame rate setting equal to or less than the time-lapse setting, in seconds. For example, suppose you have a camera with a GOP of 30 configured to record 5 frames per second (fps), which produces an I-frame once every 6 seconds (30 divided by 5). In this case, time-lapse recording cannot capture I-frames more than once every 6 seconds. Thus, the time-lapse interval must be greater than 6 seconds. If you want to record time-lapse video at shorter interval, you must reduce the GOP setting.

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H.264-Camera-Configuration-for-Time-lapse-Recording.pdf
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Knowledge Support Support exacqVision Client exacqVision Server Categories Products

How to export and import server configuration settings

To export and import an exacqVision system configuration and apply it to another exacqVision system, complete the following steps in exacqVision Client:

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  1. Open the Configuration page by clicking the Config (Setup) Page button.
  2. Find the system name in the site navigation tree and select Configure System. If necessary, click the plus button next to the system name to display the Configure System option.
  3. Click Export Settings.
  4. Enter a name for the .config file and select a network location or portable drive to save it to.
  5. Click Save
  6. Click OK to acknowledge.

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On the system where you would like to import the configuration, complete the following steps in exacqVision Client:

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  1. Open the Configuration page by clicking the Config (Setup) Page button.
  2. Find the system name in the site navigation tree and select Configure System. If necessary, click the plus button next to the system name to display the Configure System option.
  3. Click Import Settings.
  4. Navigate to the network location or portable drive containing the .config file created in the first procedure.
  5. Select the file and click Open.
  6. Click OK to acknowledge.

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Knowledge Support Support exacqVision Server Categories Products

Adding/Configuring Locales on Ubuntu Linux

For Ubuntu, adding a new locale (language) is a two-step process. First, determine the UTF8-encoded locale name, then generate the UTF8-encoded locale.

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Determine Locale Name

Open a command line window and type:

less /user/share/i18n/SUPPORTED

This will list all of the locales Ubuntu supports. Scroll down to find the one that matches the ISO 639-1/ISO 3369-1 language codes of the language you are wanting to add.

Please be aware that some of the locales will not have a suffix (look closely – there is no period (‘.’) between the xx_YY language code and the following characters). Others will have a suffix of ‘.UTF-8.’ Still others will have suffixes like ‘@euro’ and ‘.EUC-KR.’ For ExacqVision, you must use the locale with the ‘UTF-8’ suffix.

For example, Irish in Ireland has these three locales:

...
ga_IE.UTF-8 UTF-8
ga_IE ISO-8859-1
ga_IE@euro ISO-8859-15
...

The first one has a ‘UTF-8’ suffix and should be used. The second and third ones do not have the ‘UTF-8’ suffix and should NOT be used.

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Generate Locale

Since we’ve now determined the proper locale to generate, head back to the command prompt and type (once for each locale you wish to generate):

sudo locale-gen ga_IE.UTF-8

To actually trigger Ubuntu to generate the locale(s), type:

sudo dpkg-reconfigure locales

To verify that the locale(s) were generated, type:

locale -a

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Change the Locale

For any given run of any program

Also, you may run the exacqVision Client from the command line preceded by an env setting. For example:

env LANG=es_CL.utf8 /usr/local/exacq/client/edvrclient

will cause the exacqVision Client to run with the Chilean Spanish translation.

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Permanently

To change the locale, you may change the entire operating system by going to System->Administration->Language Support and changing the default language dropdown. This will require a reboot.

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