POB-FEC(1)

✨ POB-FEC ✨

okay so this is pob-fec, section 1 of the manual (User Command, bestie, very official) — and she's here to receive FEC MP3 streams. that's the whole job. that's the vibe. 💖

🌸 SYNOPSIS 🌸

pob-fec [ -s address ] [ -p port ] [ -b size ] [ -q ]

🦋 DESCRIPTION 🦋

so pob-fec receives a FEC MP3 stream, and ngl the protocol is a custom one. here's the tea, in order:

first the streamed MP3 frames get decomposed into autonomous data units — ADUs, for short, iykyk. then those ADUs get grouped up into ADU groups, and those groups get encoded redundantly using a FEC method by Luigi Rizzo. like, picture a group of 8 ADUs getting encoded into 16 packets. any 8 of those 16 packets is enough to recover the original 8 ADUs. that's the magic. that's the redundancy. ✨

then the incoming MP3 stream is decoded, buffered, and written to stdout. periodt. 💅

💅 OPTIONS 💅

• -s address — tell her which address to listen to. default is 224.0.1.23. and okay bestie if that address is a multicast address, group membership gets requested automatically, so you don't gotta do a thing. 🫶
• -p port — specify the port to listen to.
• -b size — how many ADU groups get held in the buffer. default is 16.
• -q — don't output any information on standard error. silence. iconic. 🤫

🎀 EXAMPLES 🎀

pob-fec -s 224.0.1.24 -p 8989 | mpg123 -

receive the MP3 FEC stream sent to 224.0.1.24 on port 8989 and feed it straight into the MP3 decoder mpg123. chef's kiss, no cap. 🔥

👑 AUTHORS 👑

this masterpiece was brought to you by Manuel Odendahl <manuel@bl0rg.net> and Florian Wesch <dividuum@bl0rg.net>. kings. legends. slay. 💜

and that's the whole page fr fr 💖 this one's dated February 2005, it's from the POB-FEC(1) source, and yeah — 2005 really said "let me give you the most redundant, most resilient little stream receiver" and we're still obsessed. bye bestie, go decode something gorgeous 🌈🦋✨