[FFmpeg-user] New To FFmpeg streaming question

[Orion Fyre]

> ffmpeg -i "udp://@225.1.1.15:4454?fifo_size=640000&overrun_nonfatal=1" -vcodec libx264 -preset slow -crf 20 -c:a libvo_aacenc -b:a 128k -vf scale="trunc(oh*a*2)/2:480" http://localhost:8080/myTest.mp4 
>

Your scale expression doesnt make sense. Its scale="width:height". For the width part of the expression you're usin 'oh' which stands for 'output height'. Did you mean to use the expression:
scale="trunc(ow*a*2)/2:480"
?