On Fri, 2011-02-25 at 10:10 -0600, pl bossart wrote: > > Modifiers can be used in the following situations:- > > > > 1) Music is being played. Pulseaudio has configured the Music use case > > verb via UCM. The system wants to play a tone, this could be a beep or > > even a ring tone for an incoming call. Pulseaudio would then check for a > > UCM "play tone" modifier for the current verb and then enable the > > modifier if it exists. This "play tone" modifier would setup the > > hardware to play both Music (i.e the verb) and additionally tones (the > > modifier). The modifier may use a different ALSA pcm and hardware volume > > controls to that of the main verb. > > > > If no "play tone" modifier exists then Pulsewould mix the tone into the > > music being played in software as it does atm. > > > > 2) Phone call is in progress. Pulseaudio has enabled the phone call UCM > > verb. The user wants to play music on the phone call. The modifier would > > be "Music" so Pulseaudio will check that a modifier exist for this when > > the phone call verb is active and enable this modifier. > > > > If no music modifier is available in the phone call verb configuration > > then pulseaudio would mix the music and voice in software. > > Make sense. > But I am not sure the profiles as defined today in PulseAudio can work > with modifiers. What we discussed yesterday is that when a profile is > selected then you would set the UCM verb and know about all possible > sinks. We would need additional logic to have profile modifiers, or we > would need extra profiles to represent all possible combinations > (speech, speech+tone, speech+music, etc). Yeah, I'm thinking it may be easier to add the extra profiles here. We could match a profile and it's UCM verb+modifier at init time. Liam
