395 lines
16 KiB
Python
Executable File
395 lines
16 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import calendar
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import colorsys
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import gettext
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import io
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import json
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import logging
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import math
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import os
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import random
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import re
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import sys
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import time
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import xml.dom.minidom
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__all__ = ["Danmaku2ASS"]
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gettext.install('danmaku2ass', os.path.join(os.path.dirname(os.path.abspath(os.path.realpath(sys.argv[0] or 'locale'))), 'locale'))
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def SeekZero(function):
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def decorated_function(file_):
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file_.seek(0)
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try:
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return function(file_)
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finally:
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file_.seek(0)
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return decorated_function
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def EOFAsNone(function):
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def decorated_function(*args, **kwargs):
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try:
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return function(*args, **kwargs)
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except EOFError:
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return None
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return decorated_function
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@SeekZero
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@EOFAsNone
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def ProbeCommentFormat(f):
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tmp = f.read(1)
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if tmp == '[':
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return 'Acfun'
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elif tmp == '{':
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tmp = f.read(14)
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if tmp == '"status_code":':
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return 'Tudou'
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elif tmp == '"root":{"total':
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return 'sH5V'
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elif tmp == '<':
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tmp = f.read(1)
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if tmp == '?':
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tmp = f.read(38)
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if tmp == 'xml version="1.0" encoding="UTF-8"?><p':
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return 'Niconico'
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elif tmp == 'xml version="1.0" encoding="UTF-8"?><i':
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return 'Bilibili'
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elif tmp == 'xml version="1.0" encoding="utf-8"?><i':
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return 'Bilibili' # tucao.cc, with the same file format as Bilibili
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elif tmp == 'xml version="1.0" encoding="Utf-8"?>\n<':
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return 'Bilibili' # Komica, with the same file format as Bilibili
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elif tmp == 'xml version="1.0" encoding="UTF-8"?>\n<':
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return 'MioMio'
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elif tmp == 'p':
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return 'Niconico' # Himawari Douga, with the same file format as Niconico Douga
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#
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# ReadComments**** protocol
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#
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# Input:
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# f: Input file
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# fontsize: Default font size
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#
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# Output:
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# yield a tuple:
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# (timeline, timestamp, no, comment, pos, color, size, height, width)
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# timeline: The position when the comment is replayed
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# timestamp: The UNIX timestamp when the comment is submitted
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# no: A sequence of 1, 2, 3, ..., used for sorting
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# comment: The content of the comment
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# pos: 0 for regular moving comment,
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# 1 for bottom centered comment,
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# 2 for top centered comment
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# color: Font color represented in 0xRRGGBB,
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# e.g. 0xffffff for white
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# size: Font size
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# height: The estimated height in pixels
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# i.e. (comment.count('\n')+1)*size
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# width: The estimated width in pixels
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# i.e. CalculateLength(comment)*size
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#
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# After implementing ReadComments****, make sure to update ProbeCommentFormat
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# and CommentFormatMap.
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#
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def ReadCommentsNiconico(f, fontsize):
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NiconicoColorMap = {'red': 0xff0000, 'pink': 0xff8080, 'orange': 0xffc000, 'yellow': 0xffff00, 'green': 0x00ff00, 'cyan': 0x00ffff, 'blue': 0x0000ff, 'purple': 0xc000ff, 'black': 0x000000}
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dom = xml.dom.minidom.parse(f)
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comment_element = dom.getElementsByTagName('chat')
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for comment in comment_element:
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try:
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c = str(comment.childNodes[0].wholeText)
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pos = 0
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color = 0xffffff
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size = fontsize
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for mailstyle in str(comment.getAttribute('mail')).split():
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if mailstyle == 'ue':
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pos = 1
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elif mailstyle == 'shita':
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pos = 2
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elif mailstyle == 'big':
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size = fontsize*1.44
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elif mailstyle == 'small':
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size = fontsize*0.64
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elif mailstyle in NiconicoColorMap:
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color = NiconicoColorMap[mailstyle]
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yield (max(int(comment.getAttribute('vpos')), 0)*0.01, int(comment.getAttribute('date')), int(comment.getAttribute('no')), c, pos, color, size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %s') % comment.toxml())
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continue
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def ReadCommentsAcfun(f, fontsize):
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comment_element = json.load(f)
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i = 0
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for comment in comment_element:
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try:
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p = str(comment['c']).split(',')
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assert len(p) >= 6
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assert p[2] in ('1', '2', '4', '5')
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c = str(comment['m'])
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size = int(p[3])*fontsize/25.0
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yield (float(p[0]), int(p[5]), i, c, {'1': 0, '2': 0, '4': 2, '5': 1}[p[2]], int(p[1]), size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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i += 1
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %r') % comment)
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continue
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def ReadCommentsBilibili(f, fontsize):
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dom = xml.dom.minidom.parse(f)
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comment_element = dom.getElementsByTagName('d')
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i = 0
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for comment in comment_element:
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try:
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p = str(comment.getAttribute('p')).split(',')
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assert len(p) >= 5
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assert p[1] in ('1', '4', '5')
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c = str(comment.childNodes[0].wholeText).replace('/n', '\\n')
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size = int(p[2])*fontsize/25.0
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yield (float(p[0]), int(p[4]), i, c, {'1': 0, '4': 2, '5': 1}[p[1]], int(p[3]), size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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i += 1
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %s') % comment.toxml())
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continue
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def ReadCommentsTudou(f, fontsize):
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comment_element = json.load(f)
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i = 0
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for comment in comment_element['comment_list']:
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try:
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assert comment['pos'] in (3, 4, 6)
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c = str(comment['data'])
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assert comment['size'] in (0, 1, 2)
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size = {0: 0.64, 1: 1, 2: 1.44}[comment['size']]*fontsize
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yield (int(comment['replay_time']*0.001), int(comment['commit_time']), i, c, {3: 0, 4: 2, 6: 1}[comment['pos']], int(comment['color']), size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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i += 1
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except Exception:
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raise
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %r') % comment)
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continue
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def ReadCommentsMioMio(f, fontsize):
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NiconicoColorMap = {'red': 0xff0000, 'pink': 0xff8080, 'orange': 0xffc000, 'yellow': 0xffff00, 'green': 0x00ff00, 'cyan': 0x00ffff, 'blue': 0x0000ff, 'purple': 0xc000ff, 'black': 0x000000}
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dom = xml.dom.minidom.parse(f)
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comment_element = dom.getElementsByTagName('data')
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i = 0
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for comment in comment_element:
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try:
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message = comment.getElementsByTagName('message')[0]
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c = str(message.childNodes[0].wholeText)
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pos = 0
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size = int(message.getAttribute('fontsize'))*fontsize/25.0
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yield (float(comment.getElementsByTagName('playTime')[0].childNodes[0].wholeText), int(calendar.timegm(time.strptime(comment.getElementsByTagName('times')[0].childNodes[0].wholeText, '%Y-%m-%d %H:%M:%S')))-28800, i, c, {'1': 0, '4': 2, '5': 1}[message.getAttribute('mode')], int(message.getAttribute('color')), size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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i += 1
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %s') % comment.toxml())
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continue
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def ReadCommentsSH5V(f, fontsize):
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comment_element = json.load(f)
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i = 0
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for comment in comment_element["root"]["bgs"]:
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try:
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c_at = str(comment['at'])
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c_type = str(comment['type'])
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c_date = str(comment['timestamp'])
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c_color = str(comment['color'])
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c = str(comment['text'])
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size = fontsize
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yield (float(c_at), int(c_date), i, c, {'0': 0, '1': 0, '4': 2, '5': 1}[c_type], int(c_color[1:], 16), size, (c.count('\n')+1)*size, CalculateLength(c)*size)
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i += 1
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except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
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logging.warning(_('Invalid comment: %r') % comment)
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continue
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CommentFormatMap = {None: None, 'Niconico': ReadCommentsNiconico, 'Acfun': ReadCommentsAcfun, 'Bilibili': ReadCommentsBilibili, 'Tudou': ReadCommentsTudou, 'MioMio': ReadCommentsMioMio, 'sH5V': ReadCommentsSH5V}
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def ProcessComments(comments, f, width, height, bottomReserved, fontface, fontsize, alpha, lifetime, reduced):
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styleid = 'Danmaku2ASS_%04x' % random.randint(0, 0xffff)
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WriteASSHead(f, width, height, fontface, fontsize, alpha, styleid)
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rows = [[None]*(height-bottomReserved), [None]*(height-bottomReserved), [None]*(height-bottomReserved)]
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for i in comments:
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row = 0
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rowmax = height-bottomReserved-i[7]
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while row < rowmax:
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freerows = TestFreeRows(rows, i, row, width, height, bottomReserved, lifetime)
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if freerows >= i[7]:
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MarkCommentRow(rows, i, row)
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WriteComment(f, i, row, width, height, bottomReserved, fontsize, lifetime, styleid)
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break
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else:
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row += freerows or 1
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else:
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if not reduced:
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row = FindAlternativeRow(rows, i, height, bottomReserved)
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MarkCommentRow(rows, i, row)
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WriteComment(f, i, row, width, height, bottomReserved, fontsize, lifetime, styleid)
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def TestFreeRows(rows, c, row, width, height, bottomReserved, lifetime):
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res = 0
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rowmax = height-bottomReserved-c[7]
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while row < rowmax and res < c[7]:
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if c[4] in (1, 2):
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if rows[c[4]][row] and rows[c[4]][row][0]+lifetime > c[0]:
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break
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else:
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if rows[c[4]][row] and rows[c[4]][row][0]+lifetime*(rows[c[4]][row][8]+c[8])/width > c[0]:
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break
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row += 1
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res += 1
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return res
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def FindAlternativeRow(rows, c, height, bottomReserved):
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res = 0
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for row in range(height-bottomReserved-math.ceil(c[7])):
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if not rows[c[4]][row]:
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return row
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elif rows[c[4]][row][0] < rows[c[4]][res][0]:
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res = row
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return res
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def MarkCommentRow(rows, c, row):
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try:
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for i in range(row, row+math.ceil(c[7])):
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rows[c[4]][i] = c
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except IndexError:
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pass
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def WriteASSHead(f, width, height, fontface, fontsize, alpha, styleid):
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f.write(
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'''\ufeff
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[Script Info]
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; Script generated by Danmaku2ASS
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; https://github.com/m13253/danmaku2ass
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ScriptType: v4.00+
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Collisions: Normal
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PlayResX: %(width)s
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PlayResY: %(height)s
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[V4+ Styles]
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Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
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Style: %(styleid)s, %(fontface)s, %(fontsize)s, &H%(alpha)02XFFFFFF, &H%(alpha)02XFFFFFF, &H%(alpha)02X000000, &H%(alpha)02X000000, 0, 0, 0, 0, 100, 100, 0.00, 0.00, 1, 1, 0, 7, 20, 20, 20, 0
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[Events]
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Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
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''' % {'width': width, 'height': height, 'fontface': fontface, 'fontsize': round(fontsize), 'alpha': 255-round(alpha*255), 'styleid': styleid}
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)
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def WriteComment(f, c, row, width, height, bottomReserved, fontsize, lifetime, styleid):
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text = c[3].replace('\\', '\\\\').replace('\n', '\\N')
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if c[4] == 1:
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styles = '{\\an8}{\\pos(%(halfwidth)s, %(row)s)}' % {'halfwidth': round(width/2), 'row': row}
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elif c[4] == 2:
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styles = '{\\an2}{\\pos(%(halfwidth)s, %(row)s)}' % {'halfwidth': round(width/2), 'row': ConvertType2(row, height, bottomReserved)}
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else:
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styles = '{\\move(%(width)s, %(row)s, %(neglen)s, %(row)s)}' % {'width': width, 'row': row, 'neglen': -math.ceil(c[8])}
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if not (-1 < c[6]-fontsize < 1):
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styles += '{\\fs%s}' % round(c[6])
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if c[5] != 0xffffff:
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styles += '{\\c&H%02X%02X%02x&}' % (c[5] & 0xff, (c[5] >> 8) & 0xff, (c[5] >> 16) & 0xff)
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if c[5] == 0x000000:
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styles += '{\\3c&HFFFFFF&}'
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f.write('Dialogue: 3,%(start)s,%(end)s,%(styleid)s,,0000,0000,0000,,%(styles)s%(text)s\n' % {'start': ConvertTimestamp(c[0]), 'end': ConvertTimestamp(c[0]+lifetime), 'styles': styles, 'text': text, 'styleid': styleid})
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def CalculateLength(s):
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return max(map(len, s.split('\n'))) # May not be accurate
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def ConvertTimestamp(timestamp):
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hour, minute = divmod(timestamp, 3600)
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minute, second = divmod(minute, 60)
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centsecond = round((second-int(second))*100.0)
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return '%d:%02d:%02d.%02d' % (int(hour), int(minute), int(second), centsecond)
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def ConvertType2(row, height, bottomReserved):
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return height-bottomReserved-row
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def NeedWhiteBorder(rgb):
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h, l, s = colorsys.rgb_to_hls(((rgb >> 16) & 0xff)/255.0, ((rgb >> 8) & 0xff)/255.0, (rgb & 0xff)/255.0)
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return (1/12 < h < 7/12 and l < 1/3) or l < 5/12
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def ConvertToFile(filename_or_file, *args, **kwargs):
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if isinstance(filename_or_file, str):
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return open(filename_or_file, *args, **kwargs)
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else:
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return filename_or_file
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def FilterBadChars(f):
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s = f.read()
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s = re.sub('[\\x00-\\x19]', '\ufffd', s)
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return io.StringIO(s)
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def Danmaku2ASS(input_files, output_file, stage_width, stage_height, reserve_blank=0, font_face=_('(FONT) sans-serif')[7:], font_size=25.0, text_opaque=1.0, comment_duration=5.0, is_reduce_comments=False):
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if isinstance(input_files, str):
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input_files = [input_files]
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comments = []
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for i in input_files:
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with ConvertToFile(i, 'r', encoding='utf-8') as f:
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CommentProcesser = CommentFormatMap[ProbeCommentFormat(f)]
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if not CommentProcesser:
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raise ValueError(_('Unknown comment file format: %s') % i)
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for comment in CommentProcesser(FilterBadChars(f), font_size):
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comments.append(comment)
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try:
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if output_file:
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fo = ConvertToFile(output_file, 'w', encoding='utf-8', newline='\r\n')
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else:
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fo = sys.stdout
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comments.sort()
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ProcessComments(comments, fo, stage_width, stage_height, reserve_blank, font_face, font_size, text_opaque, comment_duration, is_reduce_comments)
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finally:
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if output_file:
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fo.close()
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('-o', '--output', metavar=_('OUTPUT'), help=_('Output file'))
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parser.add_argument('-s', '--size', metavar=_('WIDTHxHEIGHT'), required=True, help=_('Stage size in pixels'))
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parser.add_argument('-fn', '--font', metavar=_('FONT'), help=_('Specify font face'), default=_('(FONT) sans-serif')[7:])
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parser.add_argument('-fs', '--fontsize', metavar=_('SIZE'), help=(_('Default font size')), type=float, default=25.0)
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parser.add_argument('-a', '--alpha', metavar=_('ALPHA'), help=_('Text opaque'), type=float, default=1.0)
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parser.add_argument('-l', '--lifetime', metavar=_('SECONDS'), help=_('Duration of comment display'), type=float, default=5.0)
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parser.add_argument('-p', '--protect', metavar=_('HEIGHT'), help=_('Reserve blank on the bottom of the stage'), type=int, default=0)
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parser.add_argument('-r', '--reduce', action='store_true', help=_('Reduce the amount of comments if stage is full'))
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parser.add_argument('file', metavar=_('FILE'), nargs='+', help=_('Comment file to be processed'))
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args = parser.parse_args()
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try:
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width, height = str(args.size).split('x', 1)
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width = int(width)
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height = int(height)
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except ValueError:
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raise ValueError(_('Invalid stage size: %r') % args.size)
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Danmaku2ASS(args.file, args.output, width, height, args.protect, args.font, args.fontsize, args.alpha, args.lifetime, args.reduce)
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if __name__ == '__main__':
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main()
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