What does this men

[James Linder]

My recordings are full of these

Application provided invalid, non monotonically increasing dts to muxer in stream 0: 230 >= 230

20min yields 750

What do they mean (The video has crackels)
How to get rid of them

Using 18.5 from distro and 20.0 built from scratch

Checked with
ffmpeg -v error -i $1 -f null - 2>error.log

James

PS recording pipeline

        pipeline = gst_parse_launch (
                 "v4l2src name=source ! video/x-h264,width=1920,height=1080,framerate=30/1 ! "
                 "h264parse ! "
                 "tee name=vt "

	         “vt. ! queue ! "
                 "avdec_h264 ! "
                 "xvimagesink name=sink1 sync=true "

	         “vt. ! queue ! "
                 "avdec_h264 ! "
                 "xvimagesink name=sink2 sync=true "

                 “vt. ! queue max-size-buffers=0 max-size-bytes=0 max-size-time=1000000000 ! "
                 "mux. pulsesrc name=pulse ! "
                 "queue ! "
                 "audioconvert ! "
                 "audioresample ! audio/x-raw, rate=48000 ! "
                 "queue ! "
                 "avenc_aac ! "
                 "queue ! "
                 "mux. mp4mux name=mux ! "
                 "filesink name=file", NULL);