Thanks Tanu for the detailed reply.. A) I would great if whatever I am intending to do could be added to pulseaudio. But I feel what I need to do is already implemented in the module "Module-role-cork" --> Essentially priority assignment between the streams played by pulseaudio. B) The only differentiator is that instead of the (media player or skype) application assigning the media.role variable, I want the Audio Manager or Routing system (to which the other applications like skype and media player register) to manage assignment of this variable.. C) I have a question in this regard. I have listed it below. So "*if I can keep the Module-role-cork running by adding it to the default.pa <http://default.pa> file, I hope that assignment of the media role variable will take care of priority (what is to be corked and uncorked).*" -- Is this assumption right ?? D) So the module intent to write has the following aim :- Based on the Audio Manager or routing mechanism status, media.role priority of the particular audio stream needs to be assigned.. *E) I have a few doubts in my mind abt the way in which the module can be called*. In your reply, you have mentioned that the module can call and consult the Audio Manager. Is the other way possible. In order words, *Is their by any chance the module can loaded from my routing mechanism code itself.. * >From the simple test I could carry out, the command line arguments for this prioritizing functionality seems to go like this "*pactl load-module <module-name>*". Is there by any chance I can load these modules from a C++ program. F) I also tried to carry out a few simple test to check how the routing works in pulse audio when media player is playing when a phone call over skype arrives.. But in ubuntu 12.10, the MODULE-ROLE-CORK command doesnt seem to working. I am using pulseaudio 2.0. I had tried in ubuntu 12.04 LTS. the module "MODULE-CORK-MUSIC-ON-PHONE" seems to be working good for me (pulseaudio 1.1). *Is that I should upgrade to the latest ubuntu version 13.10 and check..* G) The command format I used in pulseaudio 2.0 to load the "module-role-cork" is like this * pactl load-module module-role-cork trigger_roles="phone" cork_roles="video"* Is this the right way to do this.. Thanks, Sathish On 19 November 2013 16:03, Tanu Kaskinen <tanu.kaskinen at linux.intel.com>wrote: > On Tue, 2013-11-19 at 14:57 +0530, sathishkumar sivagurunathan wrote: > > Thanks Tanu, > > > > What I want to do is something like this. > > > > 1) The task is very similar to the module-role-cork.. Ex:- when a call > > comes from skype, if I am playing rhythmbox, it should pause and after I > > finish the call, it should restart. The skype and rhythmbox are managed > by > > a Audio Manager. > > > > 2) The applications that I use (like skype and rhythmbox) might not have > > the media role property. > > > > 3) In such a case, how to assign media roles to them.. > > > > 4) The Audio Manager or routing engine has the information about the > media > > role variable.. > > > > The above points are the things I want to acheive.. > > > > *" Essentially, if I write a module, it should take the media role > > information from Audio Manager and set the media role variable in pulse > > audio.."* > > > > Is this what you implied when you replied you have to write a module > > (written within quotes and faced in bold)?? > > Well, I had no knowledge of there being any Audio Manager software, so > naturally I didn't imply that the module would take information from > such software, but if there must be a separate Audio Manager, then yes, > the module would take input from the Audio Manager and set the media > role variables according to the input. > > > Are there any other ways to do > > it ?? > > I assume that the information about how to map streams to media roles is > pretty static, so perhaps the module doesn't need to have a connection > to the Audio Manager. Instead, the module could have its own > configuration file that tells how to map streams to media roles. But if > you want to keep the configuration in the Audio Manager, then the module > should connect to the Audio Manager. > > Note that upstream PulseAudio doesn't support writing out-of-tree > modules, so if you want to write a module, you need to modify > PulseAudio. One option is to modify the build system so that the > internal headers are installed so that they're available to external > code - this is what e.g. Tizen and Sailfish do to facilitate their > custom PulseAudio modules. If you don't need to keep your module > separate from the PulseAudio source, you can of course add the module > directly to the PulseAudio sources, so the build system doesn't need to > be modified (except to the extent that it builds your module). > > The optimal solution would be that you would upstream your module, so > you wouldn't have to maintain a modified version PulseAudio, you > wouldn't have to port the module whenever you update PulseAudio, and > also other people than you would get benefit from the module. This > option requires that you convince us that it makes sense for us to take > and maintain your module. If this is what you want, then we need to > discuss the details of what the module does. > > -- > Tanu > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20131120/4cb0efae/attachment-0001.html>
