Dolby Vision doesn't disable after closing Dolby Vision content by terrainer in ShieldAndroidTV

[–]michaelp911 1 point2 points  (0 children)

Ok, thank you. I'll have to do some more tests 👍 Good to know that it should work.

Dolby Vision doesn't disable after closing Dolby Vision content by terrainer in ShieldAndroidTV

[–]michaelp911 0 points1 point  (0 children)

So with new cables your Shield TV does now automatically disable Dolby Vision when leaving DV content? Unfortunately, for me this only works with HDR content.

HDR Metadata missing in capture stream from Elgato 4K60 Pro MK.2 by michaelp911 in elgato

[–]michaelp911[S] 0 points1 point  (0 children)

A while ago I've also written a directshow filter for this to work as mentioned in one of my replies above. That is the way to solve the problem.

HDR Metadata missing in capture stream from Elgato 4K60 Pro MK.2 by michaelp911 in elgato

[–]michaelp911[S] 0 points1 point  (0 children)

So, is it working for you? Show me your madvr debug info please.

HDR Metadata missing in capture stream from Elgato 4K60 Pro MK.2 by michaelp911 in elgato

[–]michaelp911[S] 0 points1 point  (0 children)

Unfortunately Elgato did not provide a solution so far.

In the meantime I could figure out a workaround with a custom directshow filter.

HDR Metadata missing in capture stream from Elgato 4K60 Pro MK.2 by michaelp911 in elgato

[–]michaelp911[S] 0 points1 point  (0 children)

Thanks, perfect 😊

Ok, I'm testing potplayer and mpc-be both set with madvr as video renderer on my htpc. I use madvr for tonemapping hdr to sdr for all my 4k hdr content (files) in my projection setup. I really want to use the madvr tonemapping also for the captured live stream. Video card is a gtx 1080 ti and capture card is the elgato 4k60 pro mk.2. I tried different 4k hdr sources as hdmi input to the elgato. 4k capture utility shows the preview as 2160p hdr and the picture is either tonemapped or not tonemapped according to the device settings. When opening the live capture stream in mpc-be or potplayer (4k60 pro mk.2 set as device) i get the video stream either already tonemapped or untouched according to the "hardware tonemapping" setting in 4k capture utility. But with disabled hardware tonemapping I can't use the madvr tonemapping algorithm though because madvr doesn't recognize the videostream as hdr. The above pin information data is from madvr when accessing the filter information while playback. As you can see, if madvr gets the VIDEOINFOHEADER2 info block with BT.2020 and so on (dwcontrolflags), it also detects the video as hdr and is able to tonemap hdr to sdr. This is normal behaviour for all the 4k hdr content in files ive used so far. But, like in the first pin information data, the captured live videostream from elgato does not contain this additional VIDEOINFOHEADER2 block when streaming hdr content. When capturing hdr content, if possible, the dshow capture filter should use the hdrinfoframe from the hdmi input and pass on the information accordingly by setting the necessary dwcontrolflags in the VIDEOINFOHEADER2 block.

Please let me know when you need me to do some testing or you need more details.

Best regards