FFmpeg UDP audio livestream

Question

Having trouble getting the following command to stream audio through UDP, is there a parameter missing?

ffmpeg -f alsa -ac 1 -i hw:1 -ar 44100 -f mpegts udp://10.255.255.255:10000?pkt_size=1316

The server recognizes it, here is a tcpdump on port 10000:

IP 10.255.255.255.54260 > 10.255.255.253.10000: UDP, length 1316
IP 10.255.255.255.54260 > 10.255.255.253.10000: UDP, length 1316
IP 10.255.255.255.54260 > 10.255.255.253.10000: UDP, length 940
IP 10.255.255.255.54260 > 10.255.255.253.10000: UDP, length 1316
IP 10.255.255.255.54260 > 10.255.255.253.10000: UDP, length 1316

After looking at the packets in WireShark:

source         destination    protocol size   description
192 kb/s       44.1 kHz       MPEG-1   1358   Audio Layer 3[Malformed Packet]
10.255.255.255 10.255.255.253 MPEG TS  1358   Source port: 46947  Destination port: distinct

I have been following this tutorial.

Answer 1

this is the command that worked:

ffmpeg -f alsa -i hw:1 -acodec libvo_aacenc -f mpegts udp://10.255.255.255:9999?pkt_size=1316