At Tue, 3 Aug 2010 23:32:45 +0300, Anssi Hannula wrote: > > pl bossart kirjoitti tiistai, 3. elokuuta 2010 23:15:28: > > > 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. > > I'm not sure I see how that will help with the problem of this thread, though, > i.e. NVIDIA MCP7A hdmi codec apparently assuming audio being fed in windows > channel order instead of alsa channel order. If we get the channel order, the channels could be remapped either by the app itself or an alsa-lib plugin. The channel-map API itself is just a bridge for that... Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
