On Fri, Jan 08, 2016 at 10:46:23AM +0000, Russell King - ARM Linux wrote: > Given that, I'd like to throw in here another detail: iirc, i915's > HDMI exports the ELD to userspace via a control called "ELD" - see > eld_bytes_ctl in sound/pci/hda/patch_hdmi.c. This allows userspace > to monitor, and read the ELD including which compressed audio formats > are supported. I'm not currently aware of anything that makes use of > this, but as there is this precedent for exporting this information, > maybe it should become a standard way, so that video playback > applications can then select an appropriate audio stream depending on > the current properties of the connected device? That makes sense to me.
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