On Tue, Jun 2, 2009 at 10:27 PM, Fabio Cherchi <fabio.cherchi at yahoo.it>wrote: > Hi Benny, > > thanks for your prompt reply, see comments inline. > > > Hmmm, I'm a bit lost here. Did you implemented a sound device at all for > your device, or did you implement it all using a custom pjmedia_port? > > I've implemented a custom pjmedia_port solution. Actually I can have 16 > different audio devices (1 each pcma channel) and related streams. I tried > in the past to use either the conf bridge, or a master port for each > channel, to connect them. > It would work best if your media port is the "passive" one, meaning it just waits for its get_frame()/put_frame() to be called. The master port hasn't been tested to handle extended frame yet. > > > If all you did so far is implementing it with a custom pjmedia_port and you > don't have existing sound device implementation, actually you don't need to > implement a pjmedia-audiodev device for this. You can just modify your > pjmedia_port to work with PJMEDIA_FRAME_TYPE_EXTENDED rather than normal PCM > frames. > > Above solution looks the best, I should only add the extended frame > additional info. > > > > Then you can use any existing pjmedia-audiodev device (or a master clock) > to drive the conf_switch clock. But, you won't be able to connect anything > to slot 0 in the conf_switch, since slot 0 has PCM format. I don't think > this is a problem if you've implemented your device as pjmedia_port. > > In fact I don't need the slot 0 with the audiodev. > > > > Is it possible to re-use the same code, by simply replacing the conf >> bridge with the conf switch and by removing the pcma2linear conversion? >> > > I don't think so. There are other checks in the code, especially to handle > the size conversion between PCM and PCMA. > > So definitely there is no way to use passthrough codec + conf switch if I > don't use the audio device solution? > > Sorry I don't get you. There *is* a way, just like what we're discussing above? cheers Benny -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090603/bfec26aa/attachment.html>
