Video streaming (over Wi-Fi) method with minimum delay/latency

[DaneLLL]

Hi,
We have tried the RTSP with default camera source:

Problems minimizing latency and maximizing quality for rtsp and mpeg-ts.

We do not observe long latency in streaming with nvcamerasrc: Server $ ./test-launch "nvcamerasrc ! video/x-raw(memory:NVMM),width=640,height=480 ! tee name=t t. ! queue ! nvoverlaysink overlay-x=50 overlay-y=50 overlay-w=640 overlay-h=480 t. ! queue ! omxh264enc ! video/x-h264,profile=baseline ! rtph264pay name=pay0 pt=96" Client $ export RTSP_PATH=rtsp://127.0.0.1:8554/test $ gst-launch-1.0 rtspsrc location="$RTSP_PATH" latency=500 ! rtph264depay ! h264parse ! omxh264dec ! nvoverlaysink ov…

We set latency=500 to rtspsrc and the result looks fine. So RTSP should be OK, although is is done on r28 release. For r32, we have deprecated nvcamerasrc and omx plugins, but the result should be the same.
Suggest you check source latency. To clarify how much in 2-3 second is from the source. If you have the default camera board, you may also try it as a reference.