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@ -4,7 +4,22 @@ import sys
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import argh
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CHAT_BOX = (1220, 100, 1910, 810)
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def encode_ass(sections):
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"""
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Create an ASS text file from an ordered dict of {section name: entries}.
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Each entries value is a list (line type, fields).
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fields is a list of fields, to be comma-seperated.
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Values are NOT escaped, you should ensure you only have allowed characters
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(eg. only use a comma in the final field of a Dialogue).
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"""
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lines = []
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for section, entries in sections.items():
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lines.append(f"[{section}]")
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lines += [
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"{}: {}".format(type, ", ".join(map(str, fields)))
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for type, fields in entries
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]
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return "\n".join(lines)
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def encode_time(time):
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hours, time = divmod(time, 3600)
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@ -12,7 +27,7 @@ def encode_time(time):
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return f"{int(hours)}:{int(mins):02d}:{secs:05.2f}"
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def encode_dialogue(start, end, text):
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return f"Dialogue: {encode_time(start)}, {encode_time(end)}, Chat, {text}"
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return ("Dialogue", [encode_time(start), encode_time(end), "Chat", text])
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def message_to_line(message, time_base):
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time = message["time"] - time_base
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@ -37,38 +52,81 @@ def message_to_line(message, time_base):
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text = f"{{ \\c&H{color}& }}" + text
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return time, text
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def lines_to_dialogue(start, end, lines):
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def lines_to_dialogue(chat_box, start, end, lines):
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lines = "\\N".join([text for start, text in lines][::-1])
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clip_args = ",".join(map(str, CHAT_BOX))
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clip_args = ",".join(map(str, chat_box))
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text = f"{{ \\clip({clip_args}) }}" + lines
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return encode_dialogue(start, end, text)
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def gen_dialogues(messages, time_base, message_ttl=10):
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def gen_dialogues(chat_box, messages, time_base, message_ttl=10):
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window = []
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prev_start = None
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for message in messages:
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next_start, text = message_to_line(message, time_base)
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while window and window[0][0] + message_ttl < next_start:
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end = window[0][0] + message_ttl
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yield lines_to_dialogue(prev_start, end, window)
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yield lines_to_dialogue(chat_box, prev_start, end, window)
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window.pop(0)
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prev_start = end
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window.append((next_start, text))
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if prev_start is not None:
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yield lines_to_dialogue(prev_start, next_start, window)
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yield lines_to_dialogue(chat_box, prev_start, next_start, window)
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prev_start = next_start
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# flush remaining messages
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while window:
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end = window[0][0] + message_ttl
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yield lines_to_dialogue(prev_start, end, window)
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yield lines_to_dialogue(chat_box, prev_start, end, window)
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window.pop(0)
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prev_start = end
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def main(time_base=0):
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def gen_prelude(title, author, resolution, style_options):
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return {
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"Script Info": [
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("Title", [title]),
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("Original Script", [author]),
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("Script Type", ["V4.00+"]),
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("PlayResX", [resolution[0]]),
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("PlayResY", [resolution[1]]),
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],
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"V4+ Styles": [
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("Format", ["Name"] + list(style_options.keys())),
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("Style", ["Chat"] + list(style_options.values())),
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],
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}
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def comma_sep(n, type):
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def parse_comma_sep(s):
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parts = s.split(",")
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if len(parts) != n:
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raise ValueError("Wrong number of parts")
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return list(map(type, parts))
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@argh.arg("--pos", metavar="LEFT,TOP,RIGHT,BOTTOM", type=comma_sep(4, int))
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@argh.arg("--resolution", metavar="WIDTH,HEIGHT", type=comma_sep(2, int))
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def main(
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title,
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time_base=0,
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resolution=(1920, 1080),
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pos=(1220, 100, 1910, 810),
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font_size=40,
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outline_width=1,
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shadow_width=1,
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):
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messages = sys.stdin.read().strip().split("\n")
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messages = [json.loads(line) for line in messages]
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for dialogue in gen_dialogues(messages, time_base):
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print(dialogue)
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ass = gen_prelude(title, "Video Strike Team", (1920, 1080), {
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"Fontsize": font_size,
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"BorderStyle": 1, # outline + shadow
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"Outline": outline_width,
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"Shadow": shadow_width,
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"Alignment": 9, # top-right
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"MarginL": pos[0],
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"MarginR": resolution[0] - pos[2],
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"MarginV": pos[1],
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})
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ass["Events"] = [("Format", ["Start", "End", "Style", "Text"])]
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ass["Events"] += list(gen_dialogues(pos, messages, time_base))
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print(encode_ass(ass))
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if __name__ == '__main__':
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argh.dispatch_command(main)
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