Max allowed version of lra is 20

Author: WyattBlue

auto_editor/help.py

@@ -169,7 +169,7 @@
    ; Integrated loudness target
    - i (and/c (or/c int? float?) (>=/c -70) (<=/c -5)) : -24.0
    ; Loudness range target
-   - lra (and/c (or/c int? float?) (>=/c 1) (<=/c 50)) : 7.0
+   - lra (and/c (or/c int? float?) (>=/c 1) (<=/c 20)) : 7.0
    ; Set maximum true peak
    - tp (and/c (or/c int? float?) (>=/c -9) (<=/c 0)) : -2.0
    ; Set offset gain. Gain is applied before the true-peak limiter

auto_editor/render/audio.py

@@ -18,11 +18,14 @@
 from auto_editor.utils.types import Args
 from auto_editor.wavfile import AudioData, read, write
 
+# only newer versions of ffmpeg support lra to 50.
+# Ubuntu Latest and my static ffmpeg build for Windows are the main blockers
+
 norm_types = {
     "ebu": smallAttrs(
         "ebu",
         smallAttr("i", -24.0, andc(is_int_or_float, gte_c(-70), lte_c(-5))),
-        smallAttr("lra", 7.0, andc(is_int_or_float, gte_c(1), lte_c(50))),
+        smallAttr("lra", 7.0, andc(is_int_or_float, gte_c(1), lte_c(20))),
         smallAttr("tp", -2.0, andc(is_int_or_float, gte_c(-9), lte_c(99))),
         smallAttr("gain", 0.0, andc(is_int_or_float, gte_c(-99), lte_c(99))),
     ),

auto_editor/subcommands/test.py

@@ -7,7 +7,6 @@
 import sys
 from dataclasses import dataclass, field
 from fractions import Fraction
-from platform import system
 from time import perf_counter
 from typing import Any, Callable
 
@@ -601,10 +600,8 @@ def audio_norm_f():
         return run.main(["example.mp4"], ["--audio-normalize", "#f"])
 
     def audio_norm_ebu():
-        lra = 20 if system() == "Linux" else 40
-        # Some old versions only support lra [1 - 20]
         return run.main(
-            ["example.mp4"], ["--audio-normalize", f"ebu:i=-5,lra={lra},gain=5,tp=-1"]
+            ["example.mp4"], ["--audio-normalize", f"ebu:i=-5,lra=20,gain=5,tp=-1"]
         )
 
     def palet():