Stream Statistics
Every Data Stream of Coaxlink features a Stream Statistics Tool that monitors the image data stream at the card output and provides the application with averaged frame-, line- and data-rate.
Stream Statistics Sampling Methods
The sampling method determines the averaging interval. It can be any of the following:
LastSecond
orLastTenSeconds
: The last completed time slot of 1 or 10 seconds.Last2Buffers
,Last10Buffers
,Last100Buffers
,Last1000Buffers
: The last 2, 10, 100, or 1000 acquired buffersLastAcquisition
: The last acquisition activity period. Namely since the last DSStartAcquisition() function call until now, if the acquisition is still active otherwise until the last DSStopAcquisition() function call.LastAcquisition
: Time interval betweenStatisticsStartSampling
andStatisticsStopSampling
commands.
The default sampling method is LastSecond
.
Statistical Data
The statistical data is effectively computed when getting any of the following feature:
StatisticsFrameRate
reports the averaged frame rate expressed in in frames/second (area-scan).StatisticsLineRate
reports the average line rate expressed in lines/second (line-scan).StatisticsDataRate
reports the average data rate expressed in megabytes/second
For every GenTL buffer filled during the averaging interval, the tool counts:
- The number of filled GenTL buffers and the corresponding number of frames (area-scan) or lines (line-scan)
- The number of transferred bytes of image data.
The related GenICam features rare gathered into the Stream Statistics Category of the GenTL Data Stream Module.