[Feature Request] MasteringDisplay_ColorPrimaries - optional numeric values B/G/R/WP instead of "readable" name

[gitoss]

Current mediainfo Histroy_CLI.txt shows a change "+ colour_description: some changes in order to have more readable names (DCI P3, Display P3, sRGB)"

Alas, I need to get the numeric values to feed them into svtencapp --mastering-display "G(x,y)B(x,y)R(x,y)WP(x,y)L(max,min)" - and "Display P3" doesn't seem to be an alias for a single G/B/R/WP combination?

For luma, there alreads is
MasteringDisplay_Luminance_Min
MasteringDisplay_Luminance_Max

=> It would be nice to have
MasteringDisplay_ColorPrimaries_Numeric

=> or even (maybe overkill b/c manual parsing is easy)
MasteringDisplay_ColorPrimaries_G_X
MasteringDisplay_ColorPrimaries_G_Y
MasteringDisplay_ColorPrimaries_B_X
MasteringDisplay_ColorPrimaries_B_Y
MasteringDisplay_ColorPrimaries_R_X
MasteringDisplay_ColorPrimaries_R_Y
MasteringDisplay_ColorPrimaries_WP_Min
MasteringDisplay_ColorPrimaries_WP_Max

... current mediainfo:

MasteringDisplay_ColorPrimaries  : Display P3
MasteringDisplay_Luminance       : min: 0.0001 cd/m2, max: 1000 cd/m2
MaxCLL/String                    : 1078 cd/m2
MaxFALL/String                   : 96 cd/m2

... ffmpeg:

   Side data:
      Mastering display metadata: has_primaries:1 has_luminance:1 r(0.6800,0.3200) g(0.2650,0.6900) b(0.1500 0.0600) wp(0.3127, 0.3290) min_luminance=0.000100, max_luminance=1000.000000
      Content light level metadata: MaxCLL=1078, MaxFALL=96

[JeromeMartinez]

and "Display P3" doesn't seem to be an alias for a single G/B/R/WP combination?

"Display P3" is an alias for {13250, 34500, 7500, 3000, 34000, 16000, 15635, 16450}} (G, B, R, W pairs, x values then y values, x50000).
We have some tolerance for catching buggy encoder (+/- 25 ticks).

=> or even (maybe overkill b/c manual parsing is easy)

You mean _x and _y, right?
On one side, it is overkill, on the other it is the way to show this bunch of values, especially for applying a policy in MediaConch.
and it would be hidden by default, doable.

[gitoss]

You mean _x and _y, right?

... correct, this hdr stuff is rather new to me :-) ... corrected in the op

"Display P3" is an alias for {13250, 34500, 7500, 3000, 34000, 16000, 15635, 16450}} (G, B, R, W pairs, x values then y values, x50000).

Right, I've found a method with fprobe to get these values - but ffmpeg shows other values than ffprobe, probably b/c of the odd x50000 multiplication,.

ffprobe -select_streams v -show_frames -read_intervals "%+#1" -show_entries "frame=side_data_list" -i

[SIDE_DATA]
side_data_type=Mastering display metadata
red_x=34000/50000
red_y=16000/50000
green_x=13250/50000
green_y=34500/50000
blue_x=7500/50000
blue_y=3000/50000
white_point_x=15635/50000
white_point_y=16450/50000
min_luminance=1/10000
max_luminance=10000000/10000
[/SIDE_DATA]

On one side, it is overkill, on the other it is the way to show this bunch of values, especially for applying a policy in MediaConch. and it would be hidden by default, doable.

Well, I this is simply an alias, I can hardcode it.

Considering the many options mediainfo already has, having a way to get the numeric values might be nice - because it took me a long time to understand the connection between the name and the values, I failed to simply google that.

So I'll leave the ticket open, feel free to close b/c of overkill :-)