I wrote a bash script for this, it's working in ubuntu 16
Hopefully someone else can write it up in a less terrible language
Here's the script:
echo -e "HTTPPort 8090\nHTTPBindAddress 0.0.0.0\nMaxHTTPConnections 2000\nMaxClients 1000\nMaxBandwidth 1000\nCustomLog -\n<Stream stat.html>\nFormat status\n</Stream>"
num=1
for i in *.mp3; do
echo -e "<Stream \"$(urlencode $i)\">\nFile \"$(pwd)/$i\"\nFormat mp2\nAudioCodec libmp3lame\nAudioBitRate 64\nAudioChannels 1\nAudioSampleRate 44100\nNoVideo\n</Stream>"
done
save this as a bash script in the folder you want to serve, I'll refer to it as:
./gen_ffserver_conf.sh
it's hard coded for mp3, you'd have to sort through my echos to get it to do another format.
run the server with:
ffserver -f <(bash -e ./gen_ffserver_conf.sh)
I had to install a package for the url encoding:
sudo apt install gridsite-clients
(and of course you need ffserver as well, in the ffmpeg package)
I stream the files by going to:
http://<ip address of streaming server>:8090/stat.html
and clicking on the urlencoded values, (using chromium). This will open the stream and start playing.
Explanation:
ffserver doesn't like wildcards, or at least I never figured that out, so I'm just creating an entry for each file in the server. The urlencoding is annoying but necessary for the stat page links to work properly.