Fully functioning version

This commit is contained in:
RealStickman 2022-10-04 18:16:56 +02:00
parent 3732eadf27
commit 1ecd83723a

View File

@ -1,41 +1,46 @@
#!/usr/bin/env python3
# ffmpeg wrapper
from os import sched_get_priority_max
import multiprocessing
from os.path import isdir, isfile
import ffmpy
# argument parsing
import argparse
# multiprocessing stuff
from multiprocessing import Pool
from multiprocessing import cpu_count
# executing some commands
import subprocess
# parsing json output of loudnorm
import json
# file/directory handling
import os
# most recent starttime for program
import time
from random import randint
"""
parser = argparse.ArgumentParser(description="")
# Input file
parser.add_argument("-i", "--input-file", required=True, type=str, help="Input file")
args = parser.parse_args()
inputfile = args.input_file
"""
"""
ffmpeg -y -i FalKKonE\ -\ 01\ Aria\ \(From\ \"Berserk:\ The\ Golden\ Age\ Arc\"\).flac -pass 1 -filter:a loudnorm=print_format=json -f flac /dev/null
ffmpeg -i FalKKonE\ -\ 01\ Aria\ \(From\ \"Berserk:\ The\ Golden\ Age\ Arc\"\).flac -pass 2 -filter:a loudnorm=I=-30.0:linear=true:measured_I=-4.52:measured_LRA=1.90:measured_thresh=-14.64 -c:a libopus -b:a 320k test441.opus
ffmpeg -i $FILE -c:v libx264 -b:v 4000k -pass 2 -filter:a loudnorm=linear=true:measured_I=$input_i:measured_LRA=$input_lra:measured_tp=$input_tp:measured_thresh=$input_thresh -c:a aac -b:a 256k $FILE.mkv
"""
# FIXME
inputfile = (
'/home/marc/Downloads/FalKKonE - 01 Aria (From "Berserk: The Golden Age Arc").flac'
)
# inputfile = (
# '/home/marc/Downloads/FalKKonE - 01 Aria (From "Berserk: The Golden Age Arc").flac'
# )
# inputfile = "/home/marc/Downloads/test441.opus"
outputfile = "/home/marc/Downloads/test441_out.opus"
# outputfile = "/home/marc/Downloads/test441_out.opus"
# srcfolder = "/home/marc/Downloads/MusikRaw"
# destfolder = "/home/marc/Downloads/Musik"
musicfile_extensions = (".flac", ".wav", ".mp3", ".m4a", ".aac", ".opus")
def get_format(inputfile) -> str:
@ -45,8 +50,7 @@ def get_format(inputfile) -> str:
ff = ffmpy.FFprobe(
inputs={inputfile: None},
global_options=(
"-v",
"quiet",
"-v quiet",
"-select_streams a",
"-show_entries stream=codec_name",
"-of default=noprint_wrappers=1:nokey=1",
@ -66,6 +70,25 @@ def get_format(inputfile) -> str:
return format
def remove_picture(inputfile):
"""
This function makes sure no image is attached to the audio stream.
An image might cause problems for the later conversion to opus.
Parameters:
inputfile (str): Path to file
"""
tmpfile = os.path.splitext(inputfile)[0] + ".tmp" + os.path.splitext(inputfile)[1]
ff = ffmpy.FFmpeg(
inputs={inputfile: None},
outputs={tmpfile: "-vn -c:a copy"},
global_options=("-v error"),
)
ff.run()
os.remove(inputfile)
os.rename(tmpfile, inputfile)
def loudness_info(inputfile) -> dict[str, str]:
# get format from file
# inputformat = get_format(inputfile)
@ -91,6 +114,8 @@ def loudness_info(inputfile) -> dict[str, str]:
# decode json to dict
loudness: dict[str, str] = json.loads(loudness_json)
# print(loudness_json)
# print(ff.cmd)
print("Measuring loudness of ", os.path.basename(inputfile))
return loudness
@ -117,11 +142,107 @@ def convert(inputfile, outputfile, loudness):
input_thresh=loudness["input_thresh"],
)
},
global_options=("-v error"),
)
print(ff.cmd)
# print(ff.cmd)
print("Working on ", os.path.basename(inputfile))
ff.run()
if __name__ == "__main__":
def main(inputfile: str):
"""
Main program loop
Parameters:
inputfile (str): Path to input file
"""
# set output folder to parent path + "normalized"
outputfolder = os.path.join(os.path.dirname(inputfile), "normalized")
# NOTE create output folder
# because multiple parallel processes are at work here,
# there might be conflicts with one trying to create the directory although it already exists
# this while loop makes sure the directory does exist
# the try/except block ensures the error is caught and (hopefully) doesn't happen again just after with random sleep
# there's very likely a better way to do this, idk
while not os.path.isdir(outputfolder):
try:
os.mkdir(outputfolder)
except:
time.sleep(randint(0, 4))
# output file path
noext_infile: str = os.path.splitext(os.path.basename(inputfile))[0]
outputfile: str = os.path.join(outputfolder, noext_infile + ".opus")
# print(inputfile)
# print(os.path.dirname(inputfile))
# print(os.path.basename(inputfile))
# print(outputfile)
remove_picture(inputfile=inputfile)
loudness = loudness_info(inputfile=inputfile)
convert(inputfile=inputfile, outputfile=outputfile, loudness=loudness)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="")
# Input directory
parser.add_argument(
"-i", "--input-dir", required=True, type=str, help="Input source directory"
)
# number of cpus/threads to use, defaults to all available
parser.add_argument(
"-c",
"--cpu-count",
required=False,
type=int,
help="Number of cpu cores",
default=multiprocessing.cpu_count(),
)
args = parser.parse_args()
srcfolder = args.input_dir
cpu = args.cpu_count
# NOTE DEALING WITH TIME
# so it only runs for the modified files since the last run
# time of this run
starttime = time.time()
# file where last run is stored
timefile = os.path.join(srcfolder, "run.time")
# get time of previous run
if os.path.isfile(timefile):
with open(timefile, "r") as file:
timeprev = file.read()
else:
timeprev = 0
# FIXME
timeprev = 0
# print(timeprev)
musicfiles = []
for root, dirs, files in os.walk(srcfolder):
# ignore the "normalized" subfolder
dirs[:] = [d for d in dirs if d not in ["normalized"]]
for file in files:
if file.endswith(musicfile_extensions):
filepath = os.path.join(root, file)
# only file newer than the last run are added
if os.path.getmtime(filepath) >= float(timeprev):
musicfiles.append(os.path.join(root, file))
# print(musicfiles)
with Pool(cpu) as p:
p.map(main, musicfiles)
# write this run's time into file
with open(timefile, "w") as file:
file.write(str(starttime))