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sw5163

Life is busy, havent been able to monitor the development of DV. Can someone explain why is it a big deal CMv2.9 vs. CMv4.0? I see the latter mentioned a lot here. I read the official document, but dont understand why its a big deal. Thanks! CM v4.0 provides creators more control over tone mapping,...

sw5163

kazuma wrote: ↑
Mon Apr 29, 2024 8:26 am
what is cmv4.0 and cmv2.9 exactly?

https://professionalsupport.dolby.com/s ... uage=en_US
DV P5 are getting harder and harder to find on BT sites these days.

sw5163

what is a dual-track and dual-layer exactly? can someone describe in simple terms? Dolby Vision is really complicated, you may want to do more research to learn how it actually works. In human words: BL(base layer): an HDR10 2160p YCbCr 4:2:0 10-bit video. Dolby Vision fall back to this when not su...

sw5163

You've noted that P5 > P8 due to the colourspace being equivalent to 11.5-bit YCbCr > 10-bit YCbCr. Is there a noticeable difference between P8 and P5, assuming that it's the same master/streaming quality, on consumer-grade 10-bit panels ? Difference, yes. Noticeable, no. https://www.avsforum.com/t...

sw5163

texwatson wrote: ↑
Wed Apr 10, 2024 12:26 am
Hi guys, any FEL P7 sample available to donwload? Thanks.

Under @RESET_9999's signature DoVi Playback Devices, select DoVi TEST FILES/PATTERNS, and FEL TEST is there. It's a little hard to find.

sw5163

Does anyone know of any software that can losslessly splice P5 DV HEVC streams while keeping the P5 DV metadata in tact? Splicing on I-frames, obviously. You could try: ffmpeg -f concat -i "filelist.txt" -c copy -strict -2 test.mp4 filelist.txt: file 1.mp4 file 2.mp4 I won't guarantee it ...

sw5163

Has anyone figured out how to convert P5 MKVs to MP4? I've tried an FFMPEG command found here: ffmpeg -i "S01E01.mkv" -map 0:v -map 0:a -map 0:s:0 -c:v copy -c:a copy -c:s mov_text -strict unofficial "S01E01.mp4" That command seems right. Make sure you are using the latest tools...

sw5163

Cannikin wrote: ↑
Tue Mar 05, 2024 5:46 pm
Is there an easy ffmpeg command to convert an .mp4 with embedded DV (profile 5) to .mkv?

Looks like ffmpeg doesn't support dvh1 codec in mkv.
Try something like:

Code: Select all

ffmpeg -i dvh1.mp4 -c copy -vtag dvhe dvhe.mkv

I don't know if the mkv will play proper Dolby Vision though.

sw5163

RESET_9999 wrote: ↑
Tue Feb 06, 2024 9:18 pm
no i think the OS HDR always sends incorrect static HDR10 metadata.

ok thanks, at this point I think I'm giving up on playing movies on PC.

sw5163

If I'm right, it looks like if I want to play video correctly in Movies & TV, I need to either set EDID to 10000nits and let my TV to do the tone mapping. Or disable tone mapping on TV and set EDID to 0-1350nits and let windows do the tone mapping. Since Dolby Vision Extensions is unlikely to w...

sw5163

RESET_9999 wrote: ↑
Tue Feb 06, 2024 3:44 am
Yep, LLDV is useless without a custom or original edid with min target 0 and I bet its the same reason why all LG TVs has raised black since their internal config file is not 0.

Is that normal both my Oled G8 and S95Z don't provide Max/Min luminance in the EDID HDR Static Metadata session?

sw5163

Hi RESET, I still notice raised black level when using Microsoft Hardware Video Decoder in the Energy player. I think I find out what's going on here. My theory is Win11 expects us to play everything under HGiG mode, gaming, streaming, playing local files. It wants us to disable tone mapping on dis...

sw5163

as I said, in LLDV player led if your edid min target is not 0, you'll get raised blacks. I replicated on my C2 too, if I use the default c2 edid its raised, if I use a custom edid with min target set to 0 and reboot, then black is black. My C2 is in a room with black velvet on floor ceiling and wa...

sw5163

idk I can't replicate what I did :( ... https://i.ibb.co/fxyMM10/Capture-d-cran-2024-02-04-102438.png HDR10 in that photo looks way off, I came across once when I dragged Movies & TV app from laptop SDR display to external HDR display while it was playing. But it's not the same this time, on my...

sw5163

Yes, you're right. I couldn't see it on my Samsung monitor because it's in a bright room but on the C2 I can see the slightly raised blacks. QD-OLED will lit up by ambient light, I tend to use it in a dark room. G9 is really wide... The problem seem to be the Microsoft HEVC extension because it's a...

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