Add a clock name to the clock, remove the old api/clock_id. This makes it easier to add descriptive names Place the alsa card number in the clock name. Check the clock name of the master clock and if it matches our own clock, disable rate matching.
We don't need to look at the data type, we just just be happy when the data pointer is filled in.
SPA_FLAG_CHECK -> SPA_FLAG_IS_SET SPA_FLAG_UNSET -> SPA_FLAG_CLEAR Add SPA_FLAG_UPDATE
Rename some alsa filenames.