HDR10
HDR10 is the basic, most common HDR format, using one set of brightness data for a whole film.
HDR10 is the most common kind of HDR. Almost every HDR TV, 4K Blu-ray and streaming service supports it.
It sends one short note with the film that says how bright the brightest parts get, like a label on a whole box instead of a label on every item.
The TV reads that note once and uses it for the whole film.
Does the HDfury Vertex support HDR10?
YESYes. The Vertex passes HDR10, shows its metadata on the GUI, OSD and OLED, and can replace it with your own values or remove it completely (p.19, p.32–33).
How to use it with the Vertex:
- Use an EDID with HDR, for example table 11 '4K60-444 600MHz HDR BT2020 All Sound' (p.15).
- Short-press INFO/OLED to reach page 3 (HDR 1) or 4 (HDR 2), or use IR vertex_oledpage3 (p.9, p.42, p.81).
- To send your own HDR10 data: EOTF SMPTE ST 2084, set the values, Create IF, Send HDR (p.32–33).
- To remove HDR data: Disable HDR or RS232 #set hdrdisable on (p.32, p.51).
What it is
HDR10 was announced by the Consumer Technology Association in 2015. It uses 10-bit video, the BT.2020 colour range and the PQ brightness curve (SMPTE ST 2084).
Next to the picture it carries static metadata: information about the mastering monitor (SMPTE ST 2086) plus MaxCLL and MaxFALL, the brightest pixel and the brightest average frame in the film. 'Static' means the values stay the same from start to end. Over HDMI this data travels in the HDR InfoFrame; HDMI added this in version 2.0a.
Because the data is the same for bright and dark scenes, a TV that is less bright than the mastering monitor must guess how to squeeze the image. HDR10+ and Dolby Vision add scene-by-scene data to help with that.
On the Vertex
The Vertex reads the HDR10 InfoFrame and shows it in plain words in the GUI and on the OSD (p.32); the OLED HDR pages show the raw and decoded values (p.19, p.42).
With the Custom HDR generator you can build your own HDR10 data (EOTF, primaries, white point, max/min luminance, MaxCLL, MaxFALL) and send it instead of the original (p.32–33). The factory example is SMPTE ST 2084, DCI-P3, D65, 4000/0.005 nits, MaxCLL 1000, MaxFALL 400 (p.32). Disable HDR removes all HDR data instead (p.32).
In Automix mode the RS232 command '#set edidhdr10 on' forces HDR10 support into the EDID (p.50). Note: the GUI calls this Automix flag [HDR 10+] (p.28), while RS232 describes it as HDR10 (p.50).
Common questions
Is HDR10 worse than Dolby Vision?
Not always. HDR10 has one set of data for the whole film, Dolby Vision can change it per scene. On a bright, good TV the difference can be small; on dimmer displays the extra data helps more.
What are MaxCLL and MaxFALL?
Two numbers in the HDR10 data: the brightest single pixel and the brightest frame average of the film, in nits. Displays can use them to choose their tone mapping.
Can I change the HDR10 data with the Vertex?
Yes. Use the Custom HDR metadata generator in the HDR INFOFRAME tab, then Send HDR (p.32–33).
- https://en.wikipedia.org/wiki/HDR10
- https://www.hdmi.org/spec21sub/dynamichdr
- manual p.19, 28, 32-33, 42, 50