alejandro wrote: >> > > Lee and James, > > It is not possible to sync two interfaces if we don't have timestamped > frame numbering (UST/MSC pairs). That means that we need to know, from a > common clock, the time at which a (numbered) frame will be output or was > input from a jack. Current time is not usable, because obviously there > is an unknown delay between function calls. If the system is not able to > produce timestamp/frame count pairs, there is no possibility to sync > audio streams or audio to video streams. I have looked at JACK, and the > situation is the same as with the ALSA API. > > There are cards in the market with such timestamped operations supported > in the hardware and proprietary APIs, but is there a way to accessing > these operations from ALSA or JACK? > > Thank you, > > Alejandro > > I think you are wrong. Just take a look at xine playing a DVD. The audio and video are in perfect sync. It can be done with the current API. James _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
