Format-location for splitmuxing

[dathuynh1108]

Hello, i have a pipeline receive from rtspsrc and record to multi file by using splitmuxing:
rtspsrc location="__URL__" name=demux is-live=true demux. ! queue ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! videoscale ! video/x-raw,is-live=true ! x264enc bitrate=1024 speed-preset=ultrafast interlaced=true key-int-max=20 tune=zerolatency byte-stream=true name=encoder ! tee name=video_tee ! queue ! video/x-h264,stream-format=byte-stream ! h264parse ! appsink name=videosink sync=false video_tee. ! queue ! h264parse ! splitmuxsink name=splitmuxsink muxer=matroskamux location="/videos/record_%d.mkv"
i want to rename recording files to time.Now().UnixNano(). So i use format-location callback:

element, _ :=pipeline.GetElementByName("splitmuxsink")
element.Connect("format-location", func(
			this *gst.Element, index uint,
		) string {
			return fmt.Sprintf("/videos/%v.mkv", time.Now().UnixNano())
})

The pipeline creates new file as I return in the callback but then crashes immediately. Can you help me find the problem, thanks!

[RSWilli]

@dathuynh1108 move this issue to https://github.com/go-gst/go-gst (where future development of the bindings will take place) if you think it is necessary.