'Twas brillig, and Liam Girdwood at 25/02/11 16:27 did gyre and gimble: > 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. Could Card Profiles represent the verbs and the Sink Ports represent the modifiers? Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]
