The default audio framework operates on raw audio. The mod_native_file triggers a special flag that tells the higher level api's for recording not to transcode the audio first.
It would probably be easier for you to use the api_hangup_hook variable to trigger a sox command to wrap the files in a wav or use a batch process in cron to do so than to try to figure it out in the code. On Wed, Jan 21, 2009 at 1:05 PM, <[email protected]> wrote: > Thanks for the quick reply. > > I'm new to this project so I'm not familiar with the inner workings just > yet but at looking at mod_native_file.c it seems this is a thin wrapper > around the switch's own file input and output routines? Would it be best to > change this class or register a new file type, like .ul? If so, where would > be a good starting point. > > > ----- Original Message ----- > From: "Anthony Minessale" <[email protected]> > To: [email protected] > Sent: Wednesday, January 21, 2009 10:56:45 AM GMT -07:00 US/Canada Mountain > Subject: Re: [Freeswitch-users] Recording ULAW files > > no, there is currently no way to do that. > It would be feasible to add an option to mod_native_file to write wav > headers around the raw data but it has not been attempted. > > > > On Wed, Jan 21, 2009 at 10:48 AM, <[email protected]> wrote: > >> Hi, I'm recording files using the pcmu extension in order to save them in >> the g.711 ulaw format, which is what everything in my network uses. It >> appears that the recorded file is just raw data without a header. Is there >> any way to save this as a wav type with a header (keeping the ulaw format)? >> >> for example, running the unix command 'file' on the recording prints: >> /tmp/185065_f7bb8e0c-e641-11dd-800d-5ffe41c540dd.PCMU: data >> >> if I run it through sox which just outputs the same data (ulaw,8000,mono) >> but specifying the type as wav >> /usr/bin/sox -t .ul -r 8000 -c 1 -b -U file.pcmu -t wav -r 8000 -c 1 -b -U >> file.wav >> >> it produces a file that shows: >> /tmp/185065_f7bb8e0c-e641-11dd-800d-5ffe41c540dd.wav: RIFF (little-endian) >> data, WAVE audio, ITU G.711 mu-law, mono 8000 Hz >> >> if I try and save it within freeswitch using the wav extension, it >> trans-codes it to a pcm format >> RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 8000 >> Hz >> >> Is there any way to have freeswitch record the file as ulaw with the RIFF >> wav header? >> >> Thanks! >> >> _______________________________________________ >> Freeswitch-users mailing list >> [email protected] >> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users >> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users >> http://www.freeswitch.org >> >> > > > -- > Anthony Minessale II > > FreeSWITCH http://www.freeswitch.org/ > ClueCon http://www.cluecon.com/ > > AIM: anthm > MSN:[email protected] <msn%[email protected]> > GTALK/JABBER/PAYPAL:[email protected]<paypal%[email protected]> > IRC: irc.freenode.net #freeswitch > > FreeSWITCH Developer Conference > sip:[email protected] <sip%[email protected]> > iax:[email protected]/888 > googletalk:[email protected]<googletalk%3aconf%[email protected]> > pstn:213-799-1400 > > _______________________________________________ Freeswitch-users mailing > list [email protected] > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE: > http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > > _______________________________________________ > Freeswitch-users mailing list > [email protected] > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > > -- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ AIM: anthm MSN:[email protected] <msn%[email protected]> GTALK/JABBER/PAYPAL:[email protected]<paypal%[email protected]> IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:[email protected] <sip%[email protected]> iax:[email protected]/888 googletalk:[email protected]<googletalk%3aconf%[email protected]> pstn:213-799-1400
_______________________________________________ Freeswitch-users mailing list [email protected] http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
