Update encode_audio.py
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LightArrowsEXE
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encode_audio.py
135
encode_audio.py
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@ -1,121 +1,64 @@
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#!/usr/bin/env python
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"""
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Attempts to encode audio from every video file in a directory.
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If the file is incompatible with ffmpeg or has no audio, it will be ignored.
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wav, m4a, opus, and flac files will also be ignored.
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A script to automate my audio-encoding setup.
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Intended usage is for encoding BDMV audio to a target codec.
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Dependencies:
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- eac3to (https://www.videohelp.com/software/eac3to)
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- flac (https://xiph.org/flac/index.html)
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- qaac (https://github.com/nu774/qaac)
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Dependencies (in PATH):
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* ffmpeg
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* qaac
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"""
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import subprocess
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import argparse
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import glob
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import mimetypes
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import os
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import re
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import subprocess
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__author__ = "LightArrowsEXE"
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__license__ = 'MIT'
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__version__ = '1.0'
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# Functions for every supported codec
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def wav(f):
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f,"-vn", f"{os.path.splitext(f)[0]}.wav"])
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def aac(f, cut=False):
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if cut:
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f,"-vn", f"{os.path.splitext(f)[0]}_temp.wav"])
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subprocess.call(["qaac", f"{os.path.splitext(f)[0]}_temp.wav", "-V 127", "--no-delay"])
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try:
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os.rename(f"{os.path.splitext(f)[0]}_temp.m4a", f"{os.path.splitext(f)[0]}.m4a")
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except:
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pass
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try:
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os.remove(f"{os.path.splitext(f)[0]}_temp.wav")
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except OSError:
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pass
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else:
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f,"-vn", f"{os.path.splitext(f)[0]}.wav"])
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subprocess.call(["qaac", f"{os.path.splitext(f)[0]}.wav", "-V 127", "--no-delay"])
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def flac(f):
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f,"-vn", "-c:a", "flac", "-sample_fmt", "s16", "-compression_level", "12", f"{os.path.splitext(f)[0]}.flac"])
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def opus(f):
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f, "-c:a", "libopus", "-b:a", f"{args.bitrate}", f"{os.path.splitext(f)[0]}.opus"])
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# audio encoding and Main functions
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def encode_audio(f):
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if args.cut_only:
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if f.endswith("wav") and re.search(r"_cut.", f):
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if args.encode_all:
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aac(f, True)
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flac(f)
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opus(f)
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elif args.codec in ["aac"]:
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aac(f, True)
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elif args.codec in ["flac"]:
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flac(f)
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elif args.codec in ["opus"]:
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opus(f)
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else:
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if args.encode_all:
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aac(f, False)
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flac(f)
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opus(f)
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elif args.wav_only:
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subprocess.call(["ffmpeg", "-loglevel", "panic", "-stats", "-i", f,"-vn", f"{os.path.splitext(f)[0]}.wav"])
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elif args.codec in ["aac"]:
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aac(f, False)
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elif args.codec in ["flac"]:
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flac(f)
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elif args.codec in ["opus"]:
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opus(f)
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ignored_formats = ["audio/opus", "audio/aac"]
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def main():
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filelist = glob.glob('**/*', recursive=True) if args.recursive else glob.glob('*')
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for f in filelist:
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# TO-DO: Figure out a reliable way to only loop through audio files, but ignore the following three. Maybe messing with MIME recognition?
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if not re.search(r'\.(m4a|opus|flac|lwi|ffindex|py)$', f):
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if args.cut_only and not re.search(r"_cut", f):
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print(f)
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elif args.cut_only is False:
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print(f)
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encode_audio(f)
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if args.encode_all:
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print(f"Done encoding {os.path.splitext(f)[0]}.wav in AAC, FLAC, and opus\n")
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else:
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print(f"Done encoding {os.path.splitext(f)[0]}.{args.codec}\n")
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mime = mimetypes.types_map.get(os.path.splitext(f)[-1], "")
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if mime.startswith("audio/") or mime.startswith("video/") or f.endswith('.m2ts'):
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if mime not in ignored_formats:
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encode(f)
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def encode(f):
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print(f"\n{f}\n")
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if args.wav_only:
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if args.core:
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subprocess.call(["eac3to", f, "-log=NUL", f"{args.track}:", f"{os.path.splitext(f)[0]}.wav", "-core"])
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else:
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subprocess.call(["eac3to", f, "-log=NUL", f"{args.track}:" f"{os.path.splitext(f)[0]}.wav"])
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else:
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subprocess.call(["flac", f, "-8", "-o", f"{os.path.splitext(f)[0]}.flac"])
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subprocess.call(["qaac", f, "-V 127", "--no-delay"])
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument("-R", "--recursive",
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help="check recursively", action="store_true")
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parser.add_argument("-C", "--codec",
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default="aac",
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choices=('aac', 'flac', 'opus'),
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metavar='',
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help="encode using a specific codec (default: %(default)s)")
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parser.add_argument("-B", "--bitrate",
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action="store", type=int, default=64000,
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metavar='',
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help="set bitrate for the opus encoder in bps (default: %(default)s)")
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action="store_true", default=False,
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help="Encode files recursively (default: %(default)s)")
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parser.add_argument("-W", "--wav_only",
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action="store_true",
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help="Encode just a PCM file (default: False)")
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parser.add_argument("-c", "--cut_only",
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action="store_true",
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help="Only encode wav files with \"_cut\" at the end. For use with ocsuite and .wav files")
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parser.add_argument("-e", "--encode_all",
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action="store_true",
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help="Encodes target files in aac, flac, and opus")
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action="store_true", default=False,
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help="Encode just a PCM file (default: %(default)s)")
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parser.add_argument("-C", "--core",
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action="store_true", default=False,
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help="Decodes DTS core. Only select if you're dealing with DTS audio (default: %(default)s)")
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parser.add_argument("-T", "--track",
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action="store", type=int, default=2,
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help="Track to trim using eac3to (default: %(default)s)")
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parser.parse_args()
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args = parser.parse_args()
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main()
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main()
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