Hello Steven, when I look at your flow graph, that is exactly what I have tried to do (use a UDP source and UDP sink) but it did not work. Could it be because I had not put a throttle between source and sink?
I will try to reproduce what you have done and see if it works (I don't know 'socat' and have never used it before). Ralf Am 04.04.2021 um 18:09 schrieb Steven Barbo:
Hello. If the question is, how can one receive an multicast udp transport stream into udp gr source block? as a test, i've an encoder that encodes a transport stream to udp://239.255.42.42:5004 <http://239.255.42.42:5004> - socat udp4-recv:5004,ip-add-membership=239.255.42.42.0:0.0.0 udp4-sendto:192.168.12.12:5006 <http://192.168.12.12:5006> now send it back out using multicast address 239.255.99.99 <http://239.255.99.99>: 5008 from gr block - mc.png On Sat, Apr 3, 2021 at 2:48 PM Ralf Gorholt <ralf.gorh...@gmx.de <mailto:ralf.gorh...@gmx.de>> wrote: Dear all, instead of using a file source, I would like to get data from a video stream into GNU Radio. Is this possible? With VLC, I can connect to the stream using a URL like udp://230.0.0.10:1234 <http://230.0.0.10:1234>. How can I do this in GNU Radio? I have tried to use a UDP source with this address and payload size 1316 (needed for VLC when it connects to a UDP sink in GNU Radio) and to pass the data to a UDP sink at address 230.0.0.20:10000 <http://230.0.0.20:10000> and payload size 1316 to which I can connect with VLC to see if it works but when I start the flow graph, nothing seems to come out, VLC tries in vain to connect. Thank you very much and happy easter! Kind regards, Ralf -- If something is requisite, how can it possibly be, prerequisite? vanitas vanitatum omnia vanitas later, steve http://umn.edu/~barbo <http://umn.edu/~barbo>
