[pjsip] Using pjsua to create a mp3 stream

jvdsandt jvdsandt at gmail.com
Fri Feb 22 15:17:50 EST 2008


Marco,

Great, I have build your modifications and the playfile en recfile examples
work. Is it possible to use these new "raw" ports from the pjsua program. Or
is there more coding required for this?

Thanks,
Jan.

On Fri, Feb 22, 2008 at 4:19 PM, Marco Zissen <maz at gmx.net> wrote:

>  Hi Jan,
>
> I just copied and modified the wav_player.c and wav_writer.c and created
> two new ports in pjsip (raw_player.c, raw_writer.c).
> With these ports you are able to play and record from/to a named pipe (raw
> pcm data without a wave header).
>
> Maybe others will also find it useful, so I post it to the list. Just
> unpack the tar archive in pjproject-0.8.0.
> It will overwrite a Makefile and the playfile.c/recfile.c example to show
> how it works.
>
> Best regards,
> Marco
>
> ps: The functions can be much more improved and are poorly tested. I think
> it's a good "startpoint" to work with.
>
>  ------------------------------
> *Von:* pjsip-bounces at lists.pjsip.org [mailto:pjsip-bounces at lists.pjsip.org]
> *Im Auftrag von *jvdsandt
> *Gesendet:* Dienstag, 19. Februar 2008 20:01
> *An:* pjsip list
> *Betreff:* Re: [pjsip] Using pjsua to create a mp3 stream
>
> Hello,
>
> Thank you all for your responses. I think it is possible to use
> pjsip/pjsau to stream a VoIP conversation as an mp3 stream without to much
> work.
>
> Unfortunately I am not a C programmer. I will look for someone who can
> help me to write the correct extension to pjsip/pjsua.
>
> Chhers,
> Jan.
>
> On Feb 19, 2008 7:15 PM, <buldozer at aufbix.org> wrote:
>
> > Regarding MP3 recording ... what I do, is to re-add the code to
> > pjsua-lib,
> > which was there until mp3 writer was moved to the third-party folder.
> > Just find
> >
> >
> >    if (file_format == FMT_WAV) {
> >        status = pjmedia_wav_writer_port_create(pool, path,
> >
> >  pjsua_var.media_cfg.clock_rate,
> >
> >  pjsua_var.mconf_cfg.channel_count,
> >
> >  pjsua_var.mconf_cfg.samples_per_frame,
> >
> >  pjsua_var.mconf_cfg.bits_per_sample,
> >                                                options, 0, &port);
> >
> > in pjsua_media.c and add the following lines right after
> >
> >    } else if (file_format == FMT_MP3) {
> >        status = pjmedia_mp3_writer_port_create(pjsua_var.pool, path,
> >
> >  pjsua_var.media_cfg.clock_rate,
> >
> >  pjsua_var.mconf_cfg.channel_count,
> >
> >  pjsua_var.mconf_cfg.samples_per_frame,
> >
> >  pjsua_var.mconf_cfg.bits_per_sample,
> >                                                enc_param, &port);
> >
> > ... and include mp3_writer.c and mp3_port.h to pjsua-lib project. This
> > works
> > for any pjsua-lib based applications.
> >
> >
> > Greets, Toni
> >
> > ----------------------------------------------------------------
> > This message was sent using IMP, the Internet Messaging Program.
> >
> >
> >
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> >
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> >
>
>
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