Gstreamer and Blackmagic Decklink Duo
Posted: Mon Jun 17, 2019 1:42 pm
Hi,
I don't have a very deep knowledge of GStreamer and this problem is making me crazy:
In Ubuntu 18.04, if I try to send a video to ximagesink, this command works perfectly:
but when I try to send that stream to my Decklink Duo Card, it does not work: no errors, the command seems to work but I only have a black screen:
Does anybody have an idea of what the problem could be?
Thanky in advance,
Davide
I don't have a very deep knowledge of GStreamer and this problem is making me crazy:
In Ubuntu 18.04, if I try to send a video to ximagesink, this command works perfectly:
- Code: Select all
gst-launch-1.0 rtpbin name=rtpbin latency=1000 debug=true udpsrc address=127.0.0.1 port=60010 caps="application/x-rtp, media=video, encoding-name=VP8, clock-rate=90000" ! rtpbin.recv_rtp_sink_1 rtpbin. ! rtpvp8depay ! vp8dec ! autovideoconvert ! ximagesink
but when I try to send that stream to my Decklink Duo Card, it does not work: no errors, the command seems to work but I only have a black screen:
- Code: Select all
gst-launch-1.0 rtpbin name=rtpbin latency=1000 debug=true udpsrc address=127.0.0.1 port=60010 caps="application/x-rtp, media=video, encoding-name=VP8, clock-rate=90000" ! rtpbin.recv_rtp_sink_1 rtpbin. ! rtpvp8depay ! vp8dec ! autovideoconvert ! decklinkvideosink device-number=1 mode=17
Does anybody have an idea of what the problem could be?
Thanky in advance,
Davide