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Since WCS build 5.2.1395 a more strict jitter buffer implementation was added. The stric strict jitter buffer waits for key frame receiving from a publisher and does not pass an incomplete frames to the server engine. It may look like video freeze until key frame is received and collected if stream publisher channel is bad, and buffer capacity is not enough to collect the frame from all its parts which are not received in time due to packet losses. The strict jitter buffer can be enabled by the following parameter
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When using a higher publishing bitrate, or if packet losses are huge, it is recommended to inclreas increase the capacity, for example, to 30
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