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Spirent TestCenter: Is the VQA (video quality analyzer) "Video Frame Rate" counter the video stream's packet rate or video's encoded frame rate?

Environment/Versions
  • Spirent TestCenter 4.30
  • 2 * CM-1G-D12 ports connected back-to-back
    • One port is configured as a video server
    • One port is configured with a VQA probe
Answer

As seen below, the "Video Frame Rate" indicates the encoded frame rate and this is not the same as the frame rate of the stream the video is transported in.

 

Attachments
Attachment Description
Spirent TestCenter 4.30 back-to-back configuration file (Steps to run: 1) relocate ports; 2) start video server; 3) start vqa probe

Product : Access,Spirent TestCenter,Spirent TestCenter,Video,Video Quality