pat-e/encoding-scripts
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat: adjust loudnorm integrated loudness and true peak targets in ffmpeg filter.

Browse Source
This commit is contained in:
pat-e
2025-11-21 09:35:18 +01:00
parent 85fb3d6016
commit 961297293a
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
av1_opus_encoder.py
View File

@@ -72,7 +72,7 @@ def convert_audio_track(index, ch, lang, audio_temp_dir, source_file, should_dow
# The stats are printed to stderr, so we must use subprocess.run directly to capture it. # The stats are printed to stderr, so we must use subprocess.run directly to capture it.
print(" - Pass 1: Analyzing...") print(" - Pass 1: Analyzing...")
result = subprocess.run( result = subprocess.run(
["ffmpeg", "-v", "info", "-i", str(temp_extracted), "-af", "loudnorm=I=-24:LRA=7:tp=-2:print_format=json", "-f", "null", "-"], ["ffmpeg", "-v", "info", "-i", str(temp_extracted), "-af", "loudnorm=I=-23:LRA=7:tp=-1:print_format=json", "-f", "null", "-"],
capture_output=True, text=True, check=True) capture_output=True, text=True, check=True)
# Find the start of the JSON block in stderr and parse it. # Find the start of the JSON block in stderr and parse it.
@@ -100,7 +100,7 @@ def convert_audio_track(index, ch, lang, audio_temp_dir, source_file, should_dow
print(" - Pass 2: Applying normalization...") print(" - Pass 2: Applying normalization...")
run_cmd([ run_cmd([
"ffmpeg", "-v", "quiet", "-stats", "-y", "-i", str(temp_extracted), "-af", "ffmpeg", "-v", "quiet", "-stats", "-y", "-i", str(temp_extracted), "-af",
f"loudnorm=I=-24:LRA=7:tp=-2:measured_i={stats['input_i']}:measured_lra={stats['input_lra']}:measured_tp={stats['input_tp']}:measured_thresh={stats['input_thresh']}:offset={stats['target_offset']}", f"loudnorm=I=-23:LRA=7:tp=-1:measured_i={stats['input_i']}:measured_lra={stats['input_lra']}:measured_tp={stats['input_tp']}:measured_thresh={stats['input_thresh']}:offset={stats['target_offset']}",
"-c:a", "flac", str(temp_normalized) "-c:a", "flac", str(temp_normalized)
]) ])