Hi,
[email protected] wrote:
Greetings,
I'm figuring out the best way to record a conference. I know I can
connect an AmAudio object to the conference mixer, but then I need to
get sems to pump the data to it. Rather than reinventing the wheel,
would it be possible to create an AmSession object, which is not
actually connected to an RTP channel, and hook it to the conference,
thereby causing the media processor to do the pumping? I would set up
the AmSession so that its audio output (sent from the conference
mixer) is set to an AmAudio file for recording. If this hack would
work, how exactly would I construct the AmSession object?
its a bit of a waste, constructing the full AmSession, including RTP
stream, but anyway...
you can use the "local audio" feature - if you set input or output to
local, instead of receiving from RTP it gets audio from the
LocalInput/LocalOutput, which you can set with
setLocalInput/setLocalOutput just like you usually do
setInput/setOutput. This is used e.g. for generating local ringtone
(on receiving 180).
So it would go like this:
string conf_id="myconf";
AmSession* r_sess = new AmSession();
AmConferenceChannel* chan = AmConferenceStatus::getChannel(conf_id,
r_sess->getLocalTag());
AmAudioFile* m_file = new AmAudioFile();
m_file->open("/tmp/rec.wav", AmAudioFile::Write);
r_sess->setLocalInput(chan);
r_sess->setInput(m_file);
r_sess->setAudioLocal(AM_AUDIO_IN, true);
AmMediaProcessor::instance()->addSession(r_sess, conf_id);
bonus points: make a DSM action out of this, saving the AmAudioFile to
avar, and using transferOwnership. so that you can also stop the
recording with another action, and its automatically stopped when the
session that owns it ends. Also, don't forget to remove from
conference channel in destructor. With the SystemDSM, these conf
recordings then can also be done of a whole conference (unrelated to
the sessions of who is dialing in and leaves).
Stefan
--
Stefan Sayer
VoIP Services Consulting and Development
Warschauer Str. 24
10243 Berlin
tel:+491621366449
sip:[email protected]
email/xmpp:[email protected]
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