Dolby Vision now possible through MP4 Mux.

[deadchip12]

@RESET9999

Do you mind checking A Complete Unknown (2024)? It seems the movie crushes blacks heavy. I tried raising the brightness slider on my a95l from the default 50 to 51 and a lot of shadow details became visible, but that surely was not the right way to do it.
Is there a dolby vision test pattern to test black crush?

[RESET_9999]

I haven't watched it, but if you restore CMv4.0, it shouldn't be more crushed than HDR10. The movie is 99.99% under 500 nits, but the trim does have a couple of shots that get darker because of the slope adjustments. If I recall correctly, your TV has a target higher than 1000 nits, so that won't affect you because the RPU MDL is 1000 nits.

black crush test files:
https://drive.google.com/drive/u/1/fold ... uQRVdsXINM

[RESET_9999]

mmm. Interestingly, the Windows Movies and TV app has the same red push bug as the Shield. It also has exactly the same blue banding with the ''Multi'' pattern.

mp4 files that works in windows app: https://drive.google.com/drive/folders/ ... drive_link

and this app can play DV in HDR10. Support mkv/ts/mp4 and lossless audio. Also cmv4.0 and L5 and ST P7.. Now that we have two player on windows capable of dynamic metadata, its very easy to compare two sources.
https://apps.microsoft.com/detail/9P9ZH ... n-ms&gl=MS

I just noticed that Windows 11 doesn't have the red push bug when using the Energy player in LLDV-HDR10 mode: only my Windows 10 PC does. This red push issue is directly related to the blue ramp banding seen in the Spears & Munsil color space pattern. I remember noticing the same banding on the Shield.

SM colorspace pattern: https://drive.google.com/file/d/1OhnEb_ ... drive_link
red push samples: https://drive.google.com/drive/folders/ ... drive_link




Explanation of the SM ramps:
https://spearsandmunsil.com/portfolio-i ... r-space-3/

A “ramp” is a smooth gradient of color or gray that goes from one color to another or one level to another as you move across or down the screen. There are six ramps on the Color Space Evaluation pattern: two vertical ramps on each side (one luma and one chroma per side), and two horizontal red and blue ramps just above and below the chroma alignment patterns.

Each of the ramps should look smooth and even, with no bands or streaks anywhere along it. The two ramps in the center should not have a wide solid colored area in the center, but should vary from black to full red or blue at a thin peak in the center and back to black.

If you see really large streaks and wildly varying levels in the ramp, that’s a sign that either your black level isn’t set quite right, or that the device doing the color conversion is prematurely clipping channels, or that it isn’t doing the Y’CbCr->RGB conversion correctly.