At Tue, 3 Aug 2010 13:15:28 -0700, pl bossart wrote: > > > Well, this is one of my looong-standing TODOs. > > Originally I wanted to implement a new API to get/set the > > channel-mapping, mainly for HDMI. > > But, I've been recently too busy for other tasks (I can spend little > > time for ALSA), thus it's pending forever. > > You would only need an API to get the channel mapping. The HDMI sink > will report its speaker configuration through a CEA code (section 7.4 > of the spec), and if we parsed the EDID info we could present the > relevant channel order to user-space apps. But if the hardware is capable of channel-remapping (the intel hdmi code actually does even now), it's better as it works without any software-side channel swaps. Ditto for analog surrounds. Of course, setting the channel-map is optional. The first step is to provide the API to get the map. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
