ccsub2ass.py

# -*- coding: utf-8 -*-
import sys
import json

head_str = """[Script Info]
; Script generated by Aegisub
ScriptType: v4.00+
WrapStyle: 0
ScaledBorderAndShadow: yes
YCbCr Matrix: TV.709
PlayResX: 1920
PlayResY: 1080

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Microsoft YaHei,58,&H00FFFFFF,&H000000FF,&HFF000000,&H80000000,0,0,0,0,100,100,0,0,3,8,1,2,10,10,35,1

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
"""


def SectoTime(second):
    return f"{int(second) // 3600}:{int(second) // 60 % 60}:{int(second % 60)}.{int(second * 1000) % 1000 // 10}"


def toASS(filename):
    subdata = json.load(open(f"{filename}.json", "r", encoding="utf-8"))
    assdata = [head_str]
    for line in subdata["body"]:
        linecount = len(line["content"].split("\n")) - 1
        for n, content in enumerate(line["content"].split("\n")):
            assdata.append(
                f"Dialogue: 0,{SectoTime(line['from'])},{SectoTime(line['to'])},Default,,0,0,{(linecount - n) * 75 + 35},,{content}\n"
            )
    return assdata


def main(filename):
    with open(f"{filename}.ass", "w", encoding="utf-8") as f:
        f.writelines(toASS(filename))


if __name__ == "__main__":
    main(sys.argv[-1])