"WF" == Wu Fengguang fengguang.wu@intel.com writes:
WF> ... If only the stereo playback capability is reported, the user WF> won't be able to start 8-channel playback; if the 8-channel ELD is WF> reported, then user space applications may send 8-channel samples WF> down, however the user may actually be listening to the 2-channel WF> monitor and not connecting speakers to the 8-channel monitor.
WF> Overall, it's more safe to report maximum profiles to the user WF> space, so that the user can at least be able to do 8-channel WF> playback if he want to.
Be aware that many TVs will either refuse the display anything or pop-up an OSD warning whenever they receive hdmi audio which they cannot handle.
Sending 8-channel in your example may render the stereo-only monitor useless.
That said, one step at a time is reasonable. But eventually you will require configurability and/or per-monitor audio control even when the video is cloned.
-JimC