[Request] Source converter/songs for .s3p containers

[thomasasfk]

We have beatmaps for these, but no .ogg - we could either source the songs manually and line them up, or find/write some converter for the .s3p files.

シュガーソングとビターステップ (30)
Break Free ft.Zedd (56)
What Do You Mean? (57)
BANG BANG BANG (58)
POP TEAM EPIC (78)
U.S.A. ANOTHER EDITION (298)

[thomasasfk]

import argparse
import os
import struct

def get_s3v0_header(file):
    header = {}
    magic = file.read(4)
    if magic != b'S3V0':
        raise ValueError("Invalid S3V0 magic")

    header['size'], header['original_size'], header['data_hash'] = struct.unpack("<III", file.read(12))
    file.read(16)  # skip 16 bytes
    return header

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument('--input', help='Input S3P file', required=True)
    args = parser.parse_args()

    with open(args.input, "rb") as infile:
        magic = infile.read(4)
        if magic != b'S3P0':
            raise ValueError("Invalid S3P0 magic")

        num_files = struct.unpack("<I", infile.read(4))[0]
        index = []

        for i in range(num_files):
            offset, size = struct.unpack("<II", infile.read(8))
            index.append((offset, size))

        for i, (offset, size) in enumerate(index):
            infile.seek(offset, 0)
            header = get_s3v0_header(infile)
            data = infile.read(header['original_size'])
            output_file = os.path.join(f"{i}.wma")
            with open(output_file, "wb") as outfile:
                outfile.write(data)

Converter was easy... but the .s3p files I have are only of the intro/preview sections, not the whole songs :/

[thomasasfk]

Sorted in https://github.com/thomasasfk/drs2dd/pull/4 - found the files elsewhere :)