I remain unconvinced...
Getting the most used and perhaps advanced AV/MCH codecs to the PC platform would be IMO, interesting perhaps important. Innovation is stifled in the AVR sector because of their absence. A few years ago, an enthusiast could have build an HTPC with everything needed to have great sound and great video. Today he could but is limited to 5.1 or perhaps 7.1, no Atmos, No Dolby or DTS Advanced codecs, no Auro-3D ( ? IDK) either.
AVR are powerful but a PC with a modern processor, say an i5 or i3 or equivalent, is an extraordinary powerful machine capable of wonders for Audio and video purposes. You have all those video and video interface cards, some of these rather inexpensive, capable of prodigious processing prowess. With the proper set software one could have a special and spectacular anchor for your AV system (DRC/Dirac or equivalent, Decoding, etc) for pas top cher
...
What I saw is a hack , a geek affair. I stopped reading it after a few paragraphs. I (likely , most enthusiasts ) will continue to use my (their) AVR ...
Peace.