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Code Issues Releases Wiki Activity

stats.lua: display hdr metadata and peak detection

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This commit is contained in:
Kacper Michajłow 2023-08-29 10:24:08 +02:00 committed by Niklas Haas
parent 3cf71fd7c7
commit 15ada7c41c
1 changed files with 67 additions and 6 deletions
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73
player/lua/stats.lua
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@ -695,6 +695,66 @@ local function append_resolution(s, r, prefix, w_prop, h_prop)
end
local function pq_eotf(x)
if not x then
return x;
end
local PQ_M1 = 2610.0 / 4096 * 1.0 / 4
local PQ_M2 = 2523.0 / 4096 * 128
local PQ_C1 = 3424.0 / 4096
local PQ_C2 = 2413.0 / 4096 * 32
local PQ_C3 = 2392.0 / 4096 * 32
x = x ^ (1.0 / PQ_M2)
x = max(x - PQ_C1, 0.0) / (PQ_C2 - PQ_C3 * x)
x = x ^ (1.0 / PQ_M1)
x = x * 10000.0
return x
end
local function append_hdr(s, hdr)
if not hdr then
return
end
if (hdr["max-cll"] and hdr["max-cll"] > 203) or
hdr["max-luma"] and hdr["max-luma"] > 203 then
append(s, "", {prefix="HDR10:"})
if hdr["min-luma"] and hdr["max-luma"] and hdr["max-luma"] > 203 then
append(s, format("%.2g / %.0f", hdr["min-luma"], hdr["max-luma"]),
{prefix="Mastering display:", suffix=" cd/m²", nl=""})
end
if hdr["max-cll"] and hdr["max-cll"] > 203 then
append(s, hdr["max-cll"], {prefix="maxCLL:", suffix=" cd/m²", nl=""})
end
if hdr["max-fall"] and hdr["max-fall"] > 0 then
append(s, hdr["max-fall"], {prefix="maxFALL:", suffix=" cd/m²", nl=""})
end
end
if hdr["scene-max-r"] or hdr["scene-max-g"] or
hdr["scene-max-b"] or hdr["scene-avg"] then
append(s, "", {prefix="HDR10+:"})
append(s, format("%.1f / %.1f / %.1f", hdr["scene-max-r"] or 0,
hdr["scene-max-g"] or 0, hdr["scene-max-b"] or 0),
{prefix="MaxRGB:", suffix=" cd/m²", nl=""})
append(s, format("%.1f", hdr["scene-avg"] or 0),
{prefix="Avg:", suffix=" cd/m²", nl=""})
end
if hdr["max-pq-y"] and hdr["avg-pq-y"] then
append(s, "", {prefix="PQ(Y):"})
append(s, format("%.2f cd/m² (%.2f%% PQ)", pq_eotf(hdr["max-pq-y"]),
hdr["max-pq-y"] * 100), {prefix="Max:", nl=""})
append(s, format("%.2f cd/m² (%.2f%% PQ)", pq_eotf(hdr["avg-pq-y"]),
hdr["avg-pq-y"] * 100), {prefix="Avg:", nl=""})
end
end
local function add_video(s)
local r = mp.get_property_native("video-params")
local ro = mp.get_property_native("video-out-params")
@ -763,13 +823,14 @@ local function add_video(s)
append(s, r["colormatrix"], {prefix="Colormatrix:"})
append(s, r["primaries"], {prefix="Primaries:", nl=""})
append(s, r["gamma"], {prefix="Transfer:", nl=""})
-- Append HDR metadata conditionally (only when present and interesting)
local hdrpeak = r["sig-peak"] or 0
if hdrpeak > 1 then
append(s, format("%.0f", hdrpeak * 203),
{prefix="(HDR peak", suffix=" nits)", nl="",
indent=" ", prefix_sep=": ", no_prefix_markup=true})
local hdr = mp.get_property_native("hdr-metadata")
if not hdr then
local hdrpeak = r["sig-peak"] or 0
hdr = {["max-cll"]=math.floor(hdrpeak * 203)}
end
append_hdr(s, hdr)
append_property(s, "packet-video-bitrate", {prefix="Bitrate:", suffix=" kbps"})
append_filters(s, "vf", "Filters:")
end