Jittery video with Wirecast 10

I'm testing Wirecast 10.1.0 to replace Wirecast 6.  I discovered while streaming that the video would sometimes start jittering the frames.  I was able to capture the effect by enabling a recording of the same encode on Wirecast.  The screenshot shows a good example of the crazy during a camera move.   It will be streaming fine, then start jittering the frames, and then clear up after a while.  Did not observe any issues with CPU usage.

OS: Windows 7 Enterprise SP 1
Wirecast: 10.1.0 Pro
CPU: Intel Xeon E31220 3.1GHz  (Just missed the onboard encoding bandwagon)
Memory: 12 GB
Input: Magewell (not sure which model)  720p 59.94 Hz
Canvas: 720p
Output: 360p
RTMP connection to Wowza for streams.
Encode settings: x264, 640x360, 30fps, 785kbps, Quality:3, Profile: Main, keyframe: 60, Strict constant bitrate and keyframe aligned checked (I usually have multiple bitrates).  Audio: Stereo, 96kbps, 48kHz. 

Wirecast 6 uses the same hardware and settings without issue.  I also sometimes manage our encoders remotely with VNC.  Never been an issue for Wirecast 6, but is it a variable for 10? 

Other than the bad encode, there was no interruption to the stream.

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  • 3 yrs agoLast active
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