Batch SFD mux / demux (Multiplexer / DeMultiplexer) | M1V, ADX, SFA | Python 3, ffmpeg, SFDmux

sfd_demux.py

#!/usr/bin/env python3
from pathlib import Path
from os import system
import sys

overwrite = ''
if len(sys.argv) > 1 and sys.argv[1] == '-y':
    overwrite = '-y'

p = Path('.')
for sfd_path in p.glob('*.sfd'):
    print('#### {}'.format(sfd_path))
    m1v_path = sfd_path.with_suffix('.m1v')
    sfa_path = sfd_path.with_suffix('.sfa')

    system(r'ffmpeg -i "{}" -c:v copy "{}" {}'.format(sfd_path, m1v_path, overwrite))
    system(r'ffmpeg -i "{}" -c:a copy -f adx "{}" {}'.format(sfd_path, sfa_path, overwrite))

    # Keep original number of samples (adx)
    with open(sfa_path, "r+b") as f_sfa:
        detect_str = f_sfa.read(0x0C)
        b = sfd_path.read_bytes()
        i = b.find(detect_str)
        if i != -1:
            i += len(detect_str)
            # False positive detection
            if b.find(detect_str, i) != -1:
                f_sfa.seek(0x10)
                detect_str = f_sfa.read(1024)
                i = b.find(detect_str)
                if i != -1:
                    i += len(detect_str)
                    # False positive detection
                    if b.find(detect_str, i) != -1:
                        print('Original number of samples not found! (3)')
                        continue
                    print("Second attempt!")
                    i -= 4
                else:
                    print('Original number of samples not found! (2)')
                    continue
            num_samples = b[i: i + 4]
            f_sfa.seek(0x0C)
            f_sfa.write(num_samples)
            print("Keep original number of samples")
        else:
            print('Original number of samples not found! (1)')

sfd_mux.py

#!/usr/bin/env python3
from pathlib import Path
from os import system
import sys

overwrite = False
if len(sys.argv) > 1 and sys.argv[1] == '-y':
    overwrite = True

p = Path('.')
for m1v_path in p.glob('*.m1v'):
    print('#### {}'.format(m1v_path))
    sfd_path = m1v_path.with_suffix('.sfd')
    audio_suf = ['.sfa', '.adx']
    for suffix in audio_suf:
        audio_path = m1v_path.with_suffix(suffix)
        if audio_path.exists():
            print('#### {}'.format(audio_path))
            break
    else:
        print('File not found: {} + {}'.format(m1v_path.with_suffix(''), " | ".join(audio_suf)))
        continue

    if sfd_path.exists() and not overwrite:
        answer = input("File '{}' already exists. Overwrite ? [y/N]".format(sfd_path))
        if answer.strip().lower() != 'y':
            continue

    system(r'Sfdmux "-V={}" "-A={}" "-S={}"'.format(m1v_path, audio_path, sfd_path))

To wich point does sfd_mux work? I ran the script and i can only make it print the files' paths.

To wich point does sfd_mux work? I ran the script and i can only make it print the files' paths.

It's just a batch script. You need to add Sfdmux.exe and Sfdmux.dll to the script directory (https://forum.xentax.com/viewtopic.php?t=3084#p25927, registration required). The script searches the current directory for all .m1v + .sfa or .adx and runs Sfdmux.exe, for example:
Sfdmux "-V=file.m1v" "-A=file.adx" "-S=file.sfd"