ffmpeg -vcodec h264 -f mpegts -acodec mp3 -i udp://127.0.0.1:50001 -movflags isml+frag_keyframe -f ismv -threads 0 -c:a libfaac -ac 2 -b:a 64k -c:v libx264 -preset fast -profile:v baseline -g 48 -keyint_min 48 "http://myuser:mypassword@myserver/mystream.isml"