Hi Jan, this is because the recorded file uses fseek, which isn't supported by a named pipe. So you'll need to pass the raw stream to your named pipe without using fseek (with pseudo wave header or without a wave header). I already managed it to play internet radio over a named pipe using madplay and pjsip. Recording is the same (but without wave header!!). I think what Benny said is the easiest way to solve it. You can also take a look at this custom port or try to compile the project ;-) http://svn.v3v.de/svn/dtmfbox/trunk/port_filestream.c You can write me an email, if you have any questions. Best regards Marco _____ Von: pjsip-bounces at lists.pjsip.org [mailto:pjsip-bounces at lists.pjsip.org] Im Auftrag von jvdsandt Gesendet: Dienstag, 19. Februar 2008 10:10 An: pjsip at lists.pjsip.org Betreff: [pjsip] Using pjsua to create a mp3 stream Hello, I'm trying to make the conversation of a conference call accessible as a Mp3 stream, similar to an Internet radio station. For this I tried to use pjsua with the options "--null-audio --rec-file=out.wav --auto-rec" and define out.wav as a named pipe. I can than use another program to convert the output to mp3 and make it available as a stream. Unfortunately pjsua doesn't work when out.wav is a named pipe instead of a normal file. Is there another way I can achieve the same result? Or do I need the help of a C programmer to create this customazation on top the pjsip libraries? Cheers, Jan. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080219/99483198/attachment.html