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TDA4VH-Q1: v4l2h265enc cannot work with videotestsrc when pattern is snow

Part Number: TDA4VH-Q1
Other Parts Discussed in Thread: TDA4VH

Hi,

I am working ok TDA4VH with sdk9.0.

We encountered a problem about v4l2h265enc recently, we use gstreamer v4l2h265enc to encode camera video and then send it to net. The problem is, the video stream will disappear after some time. I find it may have something to do with the v4l2h265enc plugin when the input is a snow image, so I tried this cmdline:

gst-launch-1.0 videotestsrc pattern=snow is-live=true num-buffers=999999 ! video/x-raw, witdh-1920, height=1080, framerate=30/1, format=NV12 ! v4l2h265enc ! filesink location=/data/test.h265

This cmdline cannot work!

the cmdline works well if the pattern is default value "smpte".

Please help check with this, thanks.