Clemens Ladisch <clemens-P6GI/4k7KOmELgA04lAiVw@xxxxxxxxxxxxxxxx> writes: > David Kastrup wrote: >> I have a Minidisc deck with various digital in- and outputs using >> S/PDIF. If you connect another MD deck or a CD player digitally and >> record from it, it will faithfully reproduce the titling (not sure about >> alphanumeric titles, but at least the starting points of the tracks will >> be accurate and reliable and not just based on pauses like when >> recording via the analog inputs). > > It's possible that these sourcees send invalid or different data during > the pauses between tracks. I think it works even with track marks on continuous play. Not sure about it, though. I need to check whether I have any CDs of that kind: my digital-output CD player is too old to deal with any self-written CDs. Assuming that its belts are still in working order. >> Now how do I get this information when recording an S/PDIF signal >> into the computer? > > If that information is present, it must be in the channel status bits. > >> Does this information get back out of the ALSA driver (I can use >> an RME Multiface here) in some manner? > > As far as I can see, this driver does not give you access to the > channel status bits of the capture stream. (And even C-Media cards > give you only the first 32 bits.) Huh. Is that an ALSA shortcoming? It would seem like something worth unifying over several drivers capable of S/PDIF. Oh, and what's the deal with Dolby Surround via S/PDIF? That would also need some sort of access different to PCM, wouldn't it? -- David Kastrup _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
