I’m capturing a video stream from an AV.io 4k using the JavaScript MediaStream (i.e. MediaDevices.getUserMedia()) interface. The input resolution to the Epiphan is 2560x1440. If I specify exactly that resolution in the JavaScript, the results are perfect. However, I would like to get output from the Epiphan scaled down to 1920x1080 to make the stream more bandwidth-friendly. It does not appear that specifying 1920x1080 in the getUserMedia constraints is “seen” by the Epiphan, as the resulting output is pretty poor. Conversely, if I use something like ffmpeg to capture from the Epiphan and specify 1920x1080, I get very clean (and smaller!) output.
Does anyone know if there is a way to accomplish what I am trying to do?
Thanks!
Matt