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♻️ refactor: integrate `biliass` as a sub package (#301)

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Nyakku Shigure 2024-09-12 03:20:26 +08:00 committed by GitHub
parent 0283600930
commit 81d11c1a01
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18 changed files with 1945 additions and 9 deletions
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@ -10,7 +10,7 @@ install:
uv sync
test:
uv run pytest -m '(api or e2e or processor) and not (ci_only or ignore)'
uv run pytest -m '(api or e2e or processor or biliass) and not (ci_only or ignore)'
just clean
fmt:
@ -72,7 +72,7 @@ ci-lint:
just lint
ci-test:
uv run pytest -m "(api or processor) and not (ci_skip or ignore)" --reruns 3 --reruns-delay 1
uv run pytest -m "(api or processor or biliass) and not (ci_skip or ignore)" --reruns 3 --reruns-delay 1
just clean
ci-e2e-test:
@ -87,3 +87,6 @@ docker-build:
docker-publish:
docker buildx build --no-cache --platform=linux/amd64,linux/arm64 -t "{{DOCKER_NAME}}:{{VERSION}}" -t "{{DOCKER_NAME}}:latest" . --push
compile-protobuf:
cd packages/biliass; protoc protobuf/danmaku.proto --python_out=src/biliass --pyi_out=src/biliass

674
packages/biliass/LICENSE Normal file
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@ -0,0 +1,674 @@
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biliass, convert bilibili XML and protobuf danmaku into ASS
Copyright (C) 2024 Nyakku Shigure
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GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
biliass Copyright (C) 2024 Nyakku Shigure
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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# biliass
<p align="center">
<a href="https://python.org/" target="_blank"><img alt="PyPI - Python Version" src="https://img.shields.io/pypi/pyversions/biliass?logo=python&style=flat-square"></a>
<a href="https://pypi.org/project/biliass/" target="_blank"><img src="https://img.shields.io/pypi/v/biliass?style=flat-square" alt="pypi"></a>
<a href="https://pypi.org/project/biliass/" target="_blank"><img alt="PyPI - Downloads" src="https://img.shields.io/pypi/dm/biliass?style=flat-square"></a>
<a href="https://actions-badge.atrox.dev/yutto-dev/biliass/goto?ref=main"><img alt="Build Status" src="https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fyutto-dev%2Fbiliass%2Fbadge%3Fref%3Dmain&style=flat-square&label=Test" /></a>
<a href="LICENSE"><img alt="LICENSE" src="https://img.shields.io/github/license/yutto-dev/biliass?style=flat-square"></a>
<a href="https://gitmoji.dev"><img src="https://img.shields.io/badge/gitmoji-%20😜%20😍-FFDD67?style=flat-square" alt="Gitmoji"></a>
</p>
biliass，只是 Danmaku2ASS 的 bilili 与 yutto 适配版
原版：<https://github.com/m13253/danmaku2ass>
仅支持 bilibili 弹幕，支持 XML 弹幕和 Protobuf 弹幕
## Install
```bash
pip install biliass
```
## Usage
```bash
# XML 弹幕
biliass danmaku.xml -s 1920x1080 -o danmaku.ass
# protobuf 弹幕
biliass danmaku.pb -s 1920x1080 -f protobuf -o danmaku.ass
```
```python
from biliass import Danmaku2ASS
# xml
Danmaku2ASS(
xml_text_or_bytes,
width,
height,
input_format="xml",
reserve_blank=0,
font_face="sans-serif",
font_size=width / 40,
text_opacity=0.8,
duration_marquee=15.0,
duration_still=10.0,
comment_filter=None,
is_reduce_comments=False,
progress_callback=None,
)
# protobuf
Danmaku2ASS(
protobuf_bytes, # only bytes
width,
height,
input_format="protobuf",
reserve_blank=0,
font_face="sans-serif",
font_size=width / 40,
text_opacity=0.8,
duration_marquee=15.0,
duration_still=10.0,
comment_filter=None,
is_reduce_comments=False,
progress_callback=None,
)
```
## TODO
- 导出 bilibili 网页上的弹幕设置，并导入到 biliass

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// From: https://github.com/SocialSisterYi/bilibili-API-collect/issues/133
syntax = "proto3";
// DanmakuElem .
message DanmakuElem {
// 弹幕id
int64 id = 1;
// 弹幕位置
int32 progress = 2;
// 弹幕类型
int32 mode = 3;
// 弹幕字体
int32 fontsize = 4;
// 弹幕颜色
uint32 color = 5;
// 弹幕发送者md5哈希
string mid_hash = 6;
// 弹幕文本内容
string content = 7;
// 弹幕发送时间 时间戳
int64 ctime = 8;
// 弹幕动作
string action = 9;
// 弹幕池
int32 pool = 10;
// 弹幕id_str
string id_str = 11;
}
message DanmakuEvent {
repeated DanmakuElem elems = 1;
}

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[project]
name = "biliass"
version = "1.3.12"
description = "将 B 站弹幕转换为 ASS 弹幕"
readme = "README.md"
requires-python = ">=3.9"
authors = [
{ name = "m13253" },
{ name = "Nyakku Shigure", email = "sigure.qaq@gmail.com" },
]
keywords = ["bilibili", "yutto", "Danmaku2ASS"]
license = { text = "GPLv3" }
classifiers = [
"Operating System :: OS Independent",
"License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
"Programming Language :: Python",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.9",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Programming Language :: Python :: Implementation :: CPython",
]
dependencies = ["protobuf>=5.28.0"]
[project.urls]
Homepage = "https://github.com/yutto-dev/biliass"
Documentation = "https://github.com/yutto-dev/biliass"
Repository = "https://github.com/yutto-dev/biliass"
Issues = "https://github.com/yutto-dev/biliass/issues"
[project.scripts]
biliass = "biliass.__main__:main"
[tool.pyright]
include = ["src/biliass"]
pythonVersion = "3.9"
typeCheckingMode = "basic"
[tool.ruff]
exclude = ["*_pb2.py"]
[tool.ruff.lint.isort]
known-first-party = ["biliass"]
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"

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from __future__ import annotations
from .biliass import (
Danmaku2ASS as Danmaku2ASS,
ReadCommentsBilibiliProtobuf as ReadCommentsBilibiliProtobuf,
ReadCommentsBilibiliXml as ReadCommentsBilibiliXml,
)
__version__ = "1.3.12"

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from __future__ import annotations
import argparse
import logging
import sys
from biliass import Danmaku2ASS
from biliass import __version__ as biliass_version
def main():
logging.basicConfig(format="%(levelname)s: %(message)s")
if len(sys.argv) == 1:
sys.argv.append("--help")
parser = argparse.ArgumentParser(
description="bilibili ASS Danmaku converter", prog="biliass"
)
parser.add_argument(
"-v", "--version", action="version", version=f"%(prog)s {biliass_version}"
)
parser.add_argument("-o", "--output", metavar="OUTPUT", help="Output file")
parser.add_argument(
"-s",
"--size",
metavar="WIDTHxHEIGHT",
required=True,
help="Stage size in pixels",
)
parser.add_argument(
"-fn",
"--font",
metavar="FONT",
help="Specify font face [default: sans-serif]",
default="sans-serif",
)
parser.add_argument(
"-fs",
"--fontsize",
metavar="SIZE",
help="Default font size [default: 25]",
type=float,
default=25.0,
)
parser.add_argument(
"-a", "--alpha", metavar="ALPHA", help="Text opacity", type=float, default=1.0
)
parser.add_argument(
"-dm",
"--duration-marquee",
metavar="SECONDS",
help="Duration of scrolling comment display [default: 5]",
type=float,
default=5.0,
)
parser.add_argument(
"-ds",
"--duration-still",
metavar="SECONDS",
help="Duration of still comment display [default: 5]",
type=float,
default=5.0,
)
parser.add_argument("-fl", "--filter", help="Regular expression to filter comments")
parser.add_argument(
"-flf",
"--filter-file",
help="Regular expressions from file (one line one regex) to filter comments",
)
parser.add_argument(
"-p",
"--protect",
metavar="HEIGHT",
help="Reserve blank on the bottom of the stage",
type=int,
default=0,
)
parser.add_argument(
"-r",
"--reduce",
action="store_true",
help="Reduce the amount of comments if stage is full",
)
parser.add_argument(
"-f",
"--format",
choices=["xml", "protobuf"],
default="xml",
help="Input danmaku format (xml or protobuf)",
)
parser.add_argument(
"file", metavar="FILE", nargs="+", help="Comment file to be processed"
)
args = parser.parse_args()
try:
width, height = str(args.size).split("x", 1)
width = int(width)
height = int(height)
except ValueError:
raise ValueError(f"Invalid stage size: {args.size!r}")
inputs: list[str | bytes] = []
for file in args.file:
try:
with open(file, "r" if args.format == "xml" else "rb") as f:
inputs.append(f.read())
except UnicodeDecodeError:
logging.error(
f"Failed to decode file {file}, if it is a protobuf file, please use `-f protobuf`"
)
sys.exit(1)
if args.output:
fout = open(
args.output, "w", encoding="utf-8-sig", errors="replace", newline="\r\n"
)
else:
fout = sys.stdout
output = Danmaku2ASS(
inputs,
width,
height,
args.format,
args.protect,
args.font,
args.fontsize,
args.alpha,
args.duration_marquee,
args.duration_still,
args.filter,
args.reduce,
)
fout.write(output)
fout.close()
if __name__ == "__main__":
main()

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from __future__ import annotations
import json
import logging
import math
import random
import re
import xml.dom.minidom
from collections.abc import Callable, Generator
from typing import TypeVar, Union
from biliass.protobuf.danmaku_pb2 import DanmakuEvent
#
# ReadComments**** protocol
#
# Input:
# text: Input XML string
# fontsize: Default font size
#
# Output:
# yield a tuple:
# (timeline, timestamp, no, comment, pos, color, size, height, width)
# timeline: The position when the comment is replayed
# timestamp: The UNIX timestamp when the comment is submitted
# no: A sequence of 1, 2, 3, ..., used for sorting
# comment: The content of the comment
# pos: 0 for regular moving comment,
# 1 for bottom centered comment,
# 2 for top centered comment,
# 3 for reversed moving comment
# color: Font color represented in 0xRRGGBB,
# e.g. 0xffffff for white
# size: Font size
# height: The estimated height in pixels
# i.e. (comment.count('\n')+1)*size
# width: The estimated width in pixels
# i.e. CalculateLength(comment)*size
#
T = TypeVar("T")
Comment = tuple[float, float, int, str, Union[int, str], int, float, float, float]
def ReadCommentsBilibiliXml(
text: str | bytes, fontsize: float
) -> Generator[Comment, None, None]:
if isinstance(text, bytes):
text = text.decode()
text = FilterBadChars(text)
dom = xml.dom.minidom.parseString(text)
version = dom.version
assert version in ["1.0", "2.0"], f"未知的 XML 版本号 {version}"
if version == "1.0":
return ReadCommentsBilibiliXmlV1(text, fontsize)
else:
return ReadCommentsBilibiliXmlV2(text, fontsize)
def ReadCommentsBilibiliXmlV1(
text: str, fontsize: float
) -> Generator[Comment, None, None]:
dom = xml.dom.minidom.parseString(text)
comment_element = dom.getElementsByTagName("d")
for i, comment in enumerate(comment_element):
try:
p = str(comment.getAttribute("p")).split(",")
assert len(p) >= 5
assert p[1] in ("1", "4", "5", "6", "7", "8")
if comment.childNodes.length > 0:
if p[1] in ("1", "4", "5", "6"):
c = str(comment.childNodes[0].wholeText).replace("/n", "\n")
size = int(p[2]) * fontsize / 25.0
yield (
float(p[0]),
int(p[4]),
i,
c,
{"1": 0, "4": 2, "5": 1, "6": 3}[p[1]],
int(p[3]),
size,
(c.count("\n") + 1) * size,
CalculateLength(c) * size,
)
elif p[1] == "7": # positioned comment
c = str(comment.childNodes[0].wholeText)
yield (
float(p[0]),
int(p[4]),
i,
c,
"bilipos",
int(p[3]),
int(p[2]),
0,
0,
)
elif p[1] == "8":
pass # ignore scripted comment
except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
logging.warning(f"Invalid comment: {comment.toxml()}")
continue
def ReadCommentsBilibiliXmlV2(
text: str, fontsize: float
) -> Generator[Comment, None, None]:
dom = xml.dom.minidom.parseString(text)
comment_element = dom.getElementsByTagName("d")
for i, comment in enumerate(comment_element):
try:
p = str(comment.getAttribute("p")).split(",")
assert len(p) >= 7
assert p[3] in ("1", "4", "5", "6", "7", "8")
if comment.childNodes.length > 0:
time = float(p[2]) / 1000.0
if p[3] in ("1", "4", "5", "6"):
c = str(comment.childNodes[0].wholeText).replace("/n", "\n")
size = int(p[4]) * fontsize / 25.0
yield (
time,
int(p[6]),
i,
c,
{"1": 0, "4": 2, "5": 1, "6": 3}[p[3]],
int(p[5]),
size,
(c.count("\n") + 1) * size,
CalculateLength(c) * size,
)
elif p[3] == "7": # positioned comment
c = str(comment.childNodes[0].wholeText)
yield (time, int(p[6]), i, c, "bilipos", int(p[5]), int(p[4]), 0, 0)
elif p[3] == "8":
pass # ignore scripted comment
except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
logging.warning(f"Invalid comment: {comment.toxml()}")
continue
def ReadCommentsBilibiliProtobuf(
protobuf: bytes | str, fontsize: float
) -> Generator[Comment, None, None]:
assert isinstance(protobuf, bytes), "protobuf 仅支持使用 bytes 转换"
target = DanmakuEvent()
target.ParseFromString(protobuf)
for i, elem in enumerate(target.elems):
try:
assert elem.mode in (1, 4, 5, 6, 7, 8)
if elem.mode in (1, 4, 5, 6):
c = elem.content.replace("/n", "\n")
size = int(elem.fontsize) * fontsize / 25.0
yield (
elem.progress / 1000, # 视频内出现的时间
elem.ctime, # 弹幕的发送时间（时间戳）
i,
c,
{1: 0, 4: 2, 5: 1, 6: 3}[elem.mode],
elem.color,
size,
(c.count("\n") + 1) * size,
CalculateLength(c) * size,
)
elif elem.mode == 7: # positioned comment
c = elem.content
yield (
elem.progress / 1000,
elem.ctime,
i,
c,
"bilipos",
elem.color,
elem.fontsize,
0,
0,
)
elif elem.mode == 8:
pass # ignore scripted comment
except (AssertionError, AttributeError, IndexError, TypeError, ValueError):
logging.warning(f"Invalid comment: {elem.content}")
continue
class AssText:
def __init__(self):
self._text = ""
def WriteCommentBilibiliPositioned(self, c, width, height, styleid):
# BiliPlayerSize = (512, 384) # Bilibili player version 2010
# BiliPlayerSize = (540, 384) # Bilibili player version 2012
# BiliPlayerSize = (672, 438) # Bilibili player version 2014
BiliPlayerSize = (891, 589) # Bilibili player version 2021 (flex)
ZoomFactor = GetZoomFactor(BiliPlayerSize, (width, height))
def GetPosition(InputPos, isHeight):
isHeight = int(isHeight) # True -> 1
if isinstance(InputPos, int):
return ZoomFactor[0] * InputPos + ZoomFactor[isHeight + 1]
elif isinstance(InputPos, float):
if InputPos > 1:
return ZoomFactor[0] * InputPos + ZoomFactor[isHeight + 1]
else:
return (
BiliPlayerSize[isHeight] * ZoomFactor[0] * InputPos
+ ZoomFactor[isHeight + 1]
)
else:
try:
InputPos = int(InputPos)
except ValueError:
InputPos = float(InputPos)
return GetPosition(InputPos, isHeight)
try:
comment_args = safe_list(json.loads(c[3]))
text = ASSEscape(str(comment_args[4]).replace("/n", "\n"))
from_x = comment_args.get(0, 0)
from_y = comment_args.get(1, 0)
to_x = comment_args.get(7, from_x)
to_y = comment_args.get(8, from_y)
from_x = GetPosition(from_x, False)
from_y = GetPosition(from_y, True)
to_x = GetPosition(to_x, False)
to_y = GetPosition(to_y, True)
alpha = safe_list(str(comment_args.get(2, "1")).split("-"))
from_alpha = float(alpha.get(0, 1))
to_alpha = float(alpha.get(1, from_alpha))
from_alpha = 255 - round(from_alpha * 255)
to_alpha = 255 - round(to_alpha * 255)
rotate_z = int(comment_args.get(5, 0))
rotate_y = int(comment_args.get(6, 0))
lifetime = float(wrap_default(comment_args.get(3, 4500), 4500))
duration = int(comment_args.get(9, lifetime * 1000))
delay = int(comment_args.get(10, 0))
fontface = comment_args.get(12)
isborder = comment_args.get(11, "true")
from_rotarg = ConvertFlashRotation(
rotate_y, rotate_z, from_x, from_y, width, height
)
to_rotarg = ConvertFlashRotation(
rotate_y, rotate_z, to_x, to_y, width, height
)
styles = ["\\org(%d, %d)" % (width / 2, height / 2)]
if from_rotarg[0:2] == to_rotarg[0:2]:
styles.append("\\pos({:.0f}, {:.0f})".format(*from_rotarg[0:2]))
else:
styles.append(
"\\move({:.0f}, {:.0f}, {:.0f}, {:.0f}, {:.0f}, {:.0f})".format(
*(from_rotarg[0:2] + to_rotarg[0:2] + (delay, delay + duration))
)
)
styles.append(
"\\frx{:.0f}\\fry{:.0f}\\frz{:.0f}\\fscx{:.0f}\\fscy{:.0f}".format(
*from_rotarg[2:7]
)
)
if (from_x, from_y) != (to_x, to_y):
styles.append(f"\\t({delay:d}, {delay + duration:d}, ")
styles.append(
"\\frx{:.0f}\\fry{:.0f}\\frz{:.0f}\\fscx{:.0f}\\fscy{:.0f}".format(
*to_rotarg[2:7]
)
)
styles.append(")")
if fontface:
styles.append(f"\\fn{ASSEscape(fontface)}")
styles.append("\\fs%.0f" % (c[6] * ZoomFactor[0]))
if c[5] != 0xFFFFFF:
styles.append(f"\\c&H{ConvertColor(c[5])}&")
if c[5] == 0x000000:
styles.append("\\3c&HFFFFFF&")
if from_alpha == to_alpha:
styles.append(f"\\alpha&H{from_alpha:02X}")
elif (from_alpha, to_alpha) == (255, 0):
styles.append(f"\\fad({lifetime * 1000:.0f},0)")
elif (from_alpha, to_alpha) == (0, 255):
styles.append(f"\\fad(0, {lifetime * 1000:.0f})")
else:
styles.append(
f"\\fade({from_alpha:d}, {to_alpha:d}, {to_alpha:d}, 0, {lifetime * 1000:.0f}, {lifetime * 1000:.0f}, {lifetime * 1000:.0f})"
)
if isborder == "false":
styles.append("\\bord0")
self._text += "Dialogue: -1,{start},{end},{styleid},,0,0,0,,{{{styles}}}{text}\n".format(
start=ConvertTimestamp(c[0]),
end=ConvertTimestamp(c[0] + lifetime),
styles="".join(styles),
text=text,
styleid=styleid,
)
except (IndexError, ValueError):
try:
logging.warning(f"Invalid comment: {c[3]!r}")
except IndexError:
logging.warning(f"Invalid comment: {c!r}")
def WriteASSHead(self, width, height, fontface, fontsize, alpha, styleid):
self._text += """[Script Info]
; Script generated by biliass (based on Danmaku2ASS)
; https://github.com/yutto-dev/biliass
Script Updated By: biliass (https://github.com/yutto-dev/biliass)
ScriptType: v4.00+
PlayResX: %(width)d
PlayResY: %(height)d
Aspect Ratio: %(width)d:%(height)d
Collisions: Normal
WrapStyle: 2
ScaledBorderAndShadow: yes
YCbCr Matrix: TV.601
[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: %(styleid)s, %(fontface)s, %(fontsize).0f, &H%(alpha)02XFFFFFF, &H%(alpha)02XFFFFFF, &H%(alpha)02X000000, &H%(alpha)02X000000, 0, 0, 0, 0, 100, 100, 0.00, 0.00, 1, %(outline).0f, 0, 7, 0, 0, 0, 0
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
""" % {
"width": width,
"height": height,
"fontface": fontface,
"fontsize": fontsize,
"alpha": 255 - round(alpha * 255),
"outline": max(fontsize / 25.0, 1),
"styleid": styleid,
}
def WriteComment(
self,
c,
row,
width,
height,
bottomReserved,
fontsize,
duration_marquee,
duration_still,
styleid,
):
text = ASSEscape(c[3])
styles = []
if c[4] == 1:
styles.append(
"\\an8\\pos(%(halfwidth)d, %(row)d)"
% {"halfwidth": width / 2, "row": row}
)
duration = duration_still
elif c[4] == 2:
styles.append(
"\\an2\\pos(%(halfwidth)d, %(row)d)"
% {
"halfwidth": width / 2,
"row": ConvertType2(row, height, bottomReserved),
}
)
duration = duration_still
elif c[4] == 3:
styles.append(
"\\move(%(neglen)d, %(row)d, %(width)d, %(row)d)"
% {"width": width, "row": row, "neglen": -math.ceil(c[8])}
)
duration = duration_marquee
else:
styles.append(
"\\move(%(width)d, %(row)d, %(neglen)d, %(row)d)"
% {"width": width, "row": row, "neglen": -math.ceil(c[8])}
)
duration = duration_marquee
if not (-1 < c[6] - fontsize < 1):
styles.append(f"\\fs{c[6]:.0f}")
if c[5] != 0xFFFFFF:
styles.append(f"\\c&H{ConvertColor(c[5])}&")
if c[5] == 0x000000:
styles.append("\\3c&HFFFFFF&")
self._text += "Dialogue: 2,{start},{end},{styleid},,0000,0000,0000,,{{{styles}}}{text}\n".format(
start=ConvertTimestamp(c[0]),
end=ConvertTimestamp(c[0] + duration),
styles="".join(styles),
text=text,
styleid=styleid,
)
def to_file(self, f):
f.write(self._text)
def to_string(self):
return self._text
# Result: (f, dx, dy)
# To convert: NewX = f*x+dx, NewY = f*y+dy
def GetZoomFactor(SourceSize, TargetSize):
try:
if (SourceSize, TargetSize) == GetZoomFactor.Cached_Size:
return GetZoomFactor.Cached_Result
except AttributeError:
pass
GetZoomFactor.Cached_Size = (SourceSize, TargetSize)
try:
SourceAspect = SourceSize[0] / SourceSize[1]
TargetAspect = TargetSize[0] / TargetSize[1]
if TargetAspect < SourceAspect: # narrower
ScaleFactor = TargetSize[0] / SourceSize[0]
GetZoomFactor.Cached_Result = (
ScaleFactor,
0,
(TargetSize[1] - TargetSize[0] / SourceAspect) / 2,
)
elif TargetAspect > SourceAspect: # wider
ScaleFactor = TargetSize[1] / SourceSize[1]
GetZoomFactor.Cached_Result = (
ScaleFactor,
(TargetSize[0] - TargetSize[1] * SourceAspect) / 2,
0,
)
else:
GetZoomFactor.Cached_Result = (TargetSize[0] / SourceSize[0], 0, 0)
return GetZoomFactor.Cached_Result
except ZeroDivisionError:
GetZoomFactor.Cached_Result = (1, 0, 0)
return GetZoomFactor.Cached_Result
# Calculation is based on https://github.com/jabbany/CommentCoreLibrary/issues/5#issuecomment-40087282
# and https://github.com/m13253/danmaku2ass/issues/7#issuecomment-41489422
# ASS FOV = width*4/3.0
# But Flash FOV = width/math.tan(100*math.pi/360.0)/2 will be used instead
# Result: (transX, transY, rotX, rotY, rotZ, scaleX, scaleY)
def ConvertFlashRotation(rotY, rotZ, X, Y, width, height):
def WrapAngle(deg):
return 180 - ((180 - deg) % 360)
rotY = WrapAngle(rotY)
rotZ = WrapAngle(rotZ)
if rotY in (90, -90):
rotY -= 1
if rotY == 0 or rotZ == 0:
outX = 0
outY = -rotY # Positive value means clockwise in Flash
outZ = -rotZ
rotY *= math.pi / 180.0
rotZ *= math.pi / 180.0
else:
rotY *= math.pi / 180.0
rotZ *= math.pi / 180.0
outY = (
math.atan2(-math.sin(rotY) * math.cos(rotZ), math.cos(rotY)) * 180 / math.pi
)
outZ = (
math.atan2(-math.cos(rotY) * math.sin(rotZ), math.cos(rotZ)) * 180 / math.pi
)
outX = math.asin(math.sin(rotY) * math.sin(rotZ)) * 180 / math.pi
trX = (
(X * math.cos(rotZ) + Y * math.sin(rotZ)) / math.cos(rotY)
+ (1 - math.cos(rotZ) / math.cos(rotY)) * width / 2
- math.sin(rotZ) / math.cos(rotY) * height / 2
)
trY = (
Y * math.cos(rotZ)
- X * math.sin(rotZ)
+ math.sin(rotZ) * width / 2
+ (1 - math.cos(rotZ)) * height / 2
)
trZ = (trX - width / 2) * math.sin(rotY)
FOV = width * math.tan(2 * math.pi / 9.0) / 2
try:
scaleXY = FOV / (FOV + trZ)
except ZeroDivisionError:
logging.error(f"Rotation makes object behind the camera: trZ == {trZ:.0f}")
scaleXY = 1
trX = (trX - width / 2) * scaleXY + width / 2
trY = (trY - height / 2) * scaleXY + height / 2
if scaleXY < 0:
scaleXY = -scaleXY
outX += 180
outY += 180
logging.error(
f"Rotation makes object behind the camera: trZ == {trZ:.0f} < {FOV:.0f}"
)
return (
trX,
trY,
WrapAngle(outX),
WrapAngle(outY),
WrapAngle(outZ),
scaleXY * 100,
scaleXY * 100,
)
def ProcessComments(
comments,
width,
height,
bottomReserved,
fontface,
fontsize,
alpha,
duration_marquee,
duration_still,
filters_regex,
reduced,
progress_callback,
):
styleid = f"biliass_{random.randint(0, 0xFFFF):04x}"
ass = AssText()
ass.WriteASSHead(width, height, fontface, fontsize, alpha, styleid)
rows = [[None] * (height - bottomReserved + 1) for i in range(4)]
for idx, i in enumerate(comments):
if progress_callback and idx % 1000 == 0:
progress_callback(idx, len(comments))
if isinstance(i[4], int):
skip = False
for filter_regex in filters_regex:
if filter_regex and filter_regex.search(i[3]):
skip = True
break
if skip:
continue
row = 0
rowmax = height - bottomReserved - i[7]
while row <= rowmax:
freerows = TestFreeRows(
rows,
i,
row,
width,
height,
bottomReserved,
duration_marquee,
duration_still,
)
if freerows >= i[7]:
MarkCommentRow(rows, i, row)
ass.WriteComment(
i,
row,
width,
height,
bottomReserved,
fontsize,
duration_marquee,
duration_still,
styleid,
)
break
else:
row += freerows or 1
else:
if not reduced:
row = FindAlternativeRow(rows, i, height, bottomReserved)
MarkCommentRow(rows, i, row)
ass.WriteComment(
i,
row,
width,
height,
bottomReserved,
fontsize,
duration_marquee,
duration_still,
styleid,
)
elif i[4] == "bilipos":
ass.WriteCommentBilibiliPositioned(i, width, height, styleid)
else:
logging.warning(f"Invalid comment: {i[3]!r}")
if progress_callback:
progress_callback(len(comments), len(comments))
return ass.to_string()
def TestFreeRows(
rows, c, row, width, height, bottomReserved, duration_marquee, duration_still
):
res = 0
rowmax = height - bottomReserved
targetRow = None
if c[4] in (1, 2):
while row < rowmax and res < c[7]:
if targetRow != rows[c[4]][row]:
targetRow = rows[c[4]][row]
if targetRow and targetRow[0] + duration_still > c[0]:
break
row += 1
res += 1
else:
try:
thresholdTime = c[0] - duration_marquee * (1 - width / (c[8] + width))
except ZeroDivisionError:
thresholdTime = c[0] - duration_marquee
while row < rowmax and res < c[7]:
if targetRow != rows[c[4]][row]:
targetRow = rows[c[4]][row]
try:
if targetRow and (
targetRow[0] > thresholdTime
or targetRow[0]
+ targetRow[8] * duration_marquee / (targetRow[8] + width)
> c[0]
):
break
except ZeroDivisionError:
pass
row += 1
res += 1
return res
def FindAlternativeRow(rows, c, height, bottomReserved):
res = 0
for row in range(height - bottomReserved - math.ceil(c[7])):
if not rows[c[4]][row]:
return row
elif rows[c[4]][row][0] < rows[c[4]][res][0]:
res = row
return res
def MarkCommentRow(rows, c, row):
try:
for i in range(row, row + math.ceil(c[7])):
rows[c[4]][i] = c
except IndexError:
pass
def ASSEscape(s):
def ReplaceLeadingSpace(s):
sstrip = s.strip(" ")
slen = len(s)
if slen == len(sstrip):
return s
else:
llen = slen - len(s.lstrip(" "))
rlen = slen - len(s.rstrip(" "))
return "".join(("\u2007" * llen, sstrip, "\u2007" * rlen))
return "\\N".join(
ReplaceLeadingSpace(i) or " "
for i in str(s)
.replace("\\", "\\\\")
.replace("{", "\\{")
.replace("}", "\\}")
.split("\n")
)
def CalculateLength(s):
return max(map(len, s.split("\n"))) # May not be accurate
def ConvertTimestamp(timestamp):
timestamp = round(timestamp * 100.0)
hour, minute = divmod(timestamp, 360000)
minute, second = divmod(minute, 6000)
second, centsecond = divmod(second, 100)
return "%d:%02d:%02d.%02d" % (int(hour), int(minute), int(second), int(centsecond))
def ConvertColor(RGB, width=1280, height=576):
if RGB == 0x000000:
return "000000"
elif RGB == 0xFFFFFF:
return "FFFFFF"
R = (RGB >> 16) & 0xFF
G = (RGB >> 8) & 0xFF
B = RGB & 0xFF
if width < 1280 and height < 576:
return f"{B:02X}{G:02X}{R:02X}"
else: # VobSub always uses BT.601 colorspace, convert to BT.709
def ClipByte(x):
return 255 if x > 255 else 0 if x < 0 else round(x)
return "{:02X}{:02X}{:02X}".format( # noqa: UP032
ClipByte(
R * 0.00956384088080656
+ G * 0.03217254540203729
+ B * 0.95826361371715607
),
ClipByte(
R * -0.10493933142075390
+ G * 1.17231478191855154
+ B * -0.06737545049779757
),
ClipByte(
R * 0.91348912373987645
+ G * 0.07858536372532510
+ B * 0.00792551253479842
),
)
def ConvertType2(row, height, bottomReserved):
return height - bottomReserved - row
def FilterBadChars(string: str) -> str:
return re.sub("[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f]", "\ufffd", string)
class safe_list(list):
def get(self, index, default=None):
try:
return self[index]
except IndexError:
return default
def wrap_default(value: T | None, default: T) -> T:
return default if value is None else value
def Danmaku2ASS(
inputs: list[str | bytes] | str | bytes,
stage_width: int,
stage_height: int,
input_format: str = "xml",
reserve_blank: float = 0,
font_face: str = "sans-serif",
font_size: float = 25.0,
text_opacity: float = 1.0,
duration_marquee: float = 5.0,
duration_still: float = 5.0,
comment_filter: str | None = None,
is_reduce_comments: bool = False,
progress_callback: Callable[..., None] | None = None,
) -> str:
comment_filters: list[str] = [comment_filter] if comment_filter is not None else []
filters_regex = []
for comment_filter in comment_filters:
try:
if comment_filter:
filters_regex.append(re.compile(comment_filter))
except: # noqa: E722
raise ValueError(f"Invalid regular expression: {comment_filter}")
comments: list[Comment] = []
if not isinstance(inputs, list):
inputs = [inputs]
for input in inputs:
if input_format == "xml":
comments.extend(ReadCommentsBilibiliXml(input, font_size))
else:
if isinstance(input, str):
logging.warning("Protobuf 只能使用 bytes 转换")
comments.extend(ReadCommentsBilibiliProtobuf(input, font_size))
comments.sort()
return ProcessComments(
comments,
stage_width,
stage_height,
reserve_blank,
font_face,
font_size,
text_opacity,
duration_marquee,
duration_still,
filters_regex,
is_reduce_comments,
progress_callback,
)

0
packages/biliass/src/biliass/protobuf/__init__.py Normal file
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38
packages/biliass/src/biliass/protobuf/danmaku_pb2.py Normal file
View File

@ -0,0 +1,38 @@
# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler. DO NOT EDIT!
# NO CHECKED-IN PROTOBUF GENCODE
# source: protobuf/danmaku.proto
# Protobuf Python Version: 5.28.0
"""Generated protocol buffer code."""
from google.protobuf import descriptor as _descriptor
from google.protobuf import descriptor_pool as _descriptor_pool
from google.protobuf import runtime_version as _runtime_version
from google.protobuf import symbol_database as _symbol_database
from google.protobuf.internal import builder as _builder
_runtime_version.ValidateProtobufRuntimeVersion(
_runtime_version.Domain.PUBLIC,
5,
28,
0,
'',
'protobuf/danmaku.proto'
)
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x16protobuf/danmaku.proto\"\xba\x01\n\x0b\x44\x61nmakuElem\x12\n\n\x02id\x18\x01 \x01(\x03\x12\x10\n\x08progress\x18\x02 \x01(\x05\x12\x0c\n\x04mode\x18\x03 \x01(\x05\x12\x10\n\x08\x66ontsize\x18\x04 \x01(\x05\x12\r\n\x05\x63olor\x18\x05 \x01(\r\x12\x10\n\x08mid_hash\x18\x06 \x01(\t\x12\x0f\n\x07\x63ontent\x18\x07 \x01(\t\x12\r\n\x05\x63time\x18\x08 \x01(\x03\x12\x0e\n\x06\x61\x63tion\x18\t \x01(\t\x12\x0c\n\x04pool\x18\n \x01(\x05\x12\x0e\n\x06id_str\x18\x0b \x01(\t\"+\n\x0c\x44\x61nmakuEvent\x12\x1b\n\x05\x65lems\x18\x01 \x03(\x0b\x32\x0c.DanmakuElemb\x06proto3')
_globals = globals()
_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'protobuf.danmaku_pb2', _globals)
if not _descriptor._USE_C_DESCRIPTORS:
DESCRIPTOR._loaded_options = None
_globals['_DANMAKUELEM']._serialized_start=27
_globals['_DANMAKUELEM']._serialized_end=213
_globals['_DANMAKUEVENT']._serialized_start=215
_globals['_DANMAKUEVENT']._serialized_end=258
# @@protoc_insertion_point(module_scope)

71
packages/biliass/src/biliass/protobuf/danmaku_pb2.pyi Normal file
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@ -0,0 +1,71 @@
from google.protobuf.internal import containers as _containers
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from typing import (
ClassVar as _ClassVar,
Iterable as _Iterable,
Mapping as _Mapping,
Optional as _Optional,
Union as _Union,
)
DESCRIPTOR: _descriptor.FileDescriptor
class DanmakuElem(_message.Message):
__slots__ = (
"id",
"progress",
"mode",
"fontsize",
"color",
"mid_hash",
"content",
"ctime",
"action",
"pool",
"id_str",
)
ID_FIELD_NUMBER: _ClassVar[int]
PROGRESS_FIELD_NUMBER: _ClassVar[int]
MODE_FIELD_NUMBER: _ClassVar[int]
FONTSIZE_FIELD_NUMBER: _ClassVar[int]
COLOR_FIELD_NUMBER: _ClassVar[int]
MID_HASH_FIELD_NUMBER: _ClassVar[int]
CONTENT_FIELD_NUMBER: _ClassVar[int]
CTIME_FIELD_NUMBER: _ClassVar[int]
ACTION_FIELD_NUMBER: _ClassVar[int]
POOL_FIELD_NUMBER: _ClassVar[int]
ID_STR_FIELD_NUMBER: _ClassVar[int]
id: int
progress: int
mode: int
fontsize: int
color: int
mid_hash: str
content: str
ctime: int
action: str
pool: int
id_str: str
def __init__(
self,
id: _Optional[int] = ...,
progress: _Optional[int] = ...,
mode: _Optional[int] = ...,
fontsize: _Optional[int] = ...,
color: _Optional[int] = ...,
mid_hash: _Optional[str] = ...,
content: _Optional[str] = ...,
ctime: _Optional[int] = ...,
action: _Optional[str] = ...,
pool: _Optional[int] = ...,
id_str: _Optional[str] = ...,
) -> None: ...
class DanmakuEvent(_message.Message):
__slots__ = ("elems",)
ELEMS_FIELD_NUMBER: _ClassVar[int]
elems: _containers.RepeatedCompositeFieldContainer[DanmakuElem]
def __init__(
self, elems: _Optional[_Iterable[_Union[DanmakuElem, _Mapping]]] = ...
) -> None: ...

0
packages/biliass/src/biliass/py.typed Normal file
View File

8
pyproject.toml
View File

@ -48,8 +48,14 @@ dev-dependencies = [
"typos>=1.23.7",
]
[tool.uv.sources]
biliass = { workspace = true }
[tool.uv.workspace]
members = ["packages/*"]
[tool.pytest.ini_options]
markers = ["api", "e2e", "processor", "ignore", "ci_skip", "ci_only"]
markers = ["api", "e2e", "processor", "biliass", "ignore", "ci_skip", "ci_only"]
[tool.pyright]
include = ["yutto", "tests"]

4
tests/conftest.py
View File

@ -8,6 +8,10 @@ if TYPE_CHECKING:
import pytest
TEST_DIR = Path("./__test_files__")
BILIBILI_HEADERS = {
"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
"Referer": "https://www.bilibili.com/",
}
def pytest_sessionstart(session: pytest.Session):

0
tests/test_biliass/__init__.py Normal file
View File

31
tests/test_biliass/test_protobuf.py Normal file
View File

@ -0,0 +1,31 @@
from __future__ import annotations
from typing import TYPE_CHECKING
import httpx
import pytest
from biliass import ReadCommentsBilibiliProtobuf
from ..conftest import BILIBILI_HEADERS, TEST_DIR
if TYPE_CHECKING:
from pathlib import Path
def gen_protobuf(base_dir: Path):
filename = "test.pb"
filepath = base_dir / filename
cid = "18678311"
resp = httpx.get(
f"http://api.bilibili.com/x/v2/dm/web/seg.so?type=1&oid={cid}&segment_index={1}",
headers=BILIBILI_HEADERS,
)
with filepath.open("wb") as f:
f.write(resp.content)
@pytest.mark.biliass
def test_protobuf():
gen_protobuf(TEST_DIR)
with TEST_DIR.joinpath("test.pb").open("rb") as f:
ReadCommentsBilibiliProtobuf(f.read(), 10)

40
tests/test_biliass/test_xml.py Normal file
View File

@ -0,0 +1,40 @@
from __future__ import annotations
from typing import TYPE_CHECKING
import httpx
import pytest
from biliass import ReadCommentsBilibiliXml
from ..conftest import BILIBILI_HEADERS, TEST_DIR
if TYPE_CHECKING:
from pathlib import Path
def gen_xml_v1(base_dir: Path):
filename = "test_v1.xml"
filepath = base_dir / filename
cid = "18678311"
resp = httpx.get(
f"http://comment.bilibili.com/{cid}.xml",
headers=BILIBILI_HEADERS,
follow_redirects=True,
)
resp.encoding = "utf-8"
with filepath.open("w", encoding="utf-8") as f:
f.write(resp.text)
@pytest.mark.biliass
def test_xml_v1_text():
gen_xml_v1(TEST_DIR)
with TEST_DIR.joinpath("test_v1.xml").open("r") as f:
ReadCommentsBilibiliXml(f.read(), 10)
@pytest.mark.biliass
def test_xml_v1_bytes():
gen_xml_v1(TEST_DIR)
with TEST_DIR.joinpath("test_v1.xml").open("rb") as f:
ReadCommentsBilibiliXml(f.read(), 10)

17
uv.lock
View File

@ -1,6 +1,12 @@
version = 1
requires-python = ">=3.9"
[manifest]
members = [
"biliass",
"yutto",
]
[[package]]
name = "aiofiles"
version = "24.1.0"
@ -28,14 +34,13 @@ wheels = [
[[package]]
name = "biliass"
version = "1.3.12"
source = { registry = "https://pypi.org/simple" }
source = { editable = "packages/biliass" }
dependencies = [
{ name = "protobuf" },
]
sdist = { url = "https://files.pythonhosted.org/packages/e2/97/869ad7b7aa3bd4f732f9670ae23ea0015e8d0f997b0ad41ccf6a8be8541d/biliass-1.3.12.tar.gz", hash = "sha256:fb1ab9a96fbc94a6f8428ce9f80effff2e27894e77402d46ad42cf1257766d19", size = 23677 }
wheels = [
{ url = "https://files.pythonhosted.org/packages/8b/e8/cd9a77bd738e7cae8b1f4481b61380b9188baf91082dbef2b5013d231616/biliass-1.3.12-py3-none-any.whl", hash = "sha256:5da4e02fd70307def68ab538026ee3f2454177a1551c235315d382cc718d5ba2", size = 24449 },
]
[package.metadata]
requires-dist = [{ name = "protobuf", specifier = ">=5.28.0" }]
[[package]]
name = "certifi"
@ -356,7 +361,7 @@ dev = [
[package.metadata]
requires-dist = [
{ name = "aiofiles", specifier = ">=24.1.0" },
{ name = "biliass", specifier = "==1.3.12" },
{ name = "biliass", editable = "packages/biliass" },
{ name = "colorama", marker = "sys_platform == 'win32'", specifier = ">=0.4.6" },
{ name = "dict2xml", specifier = ">=1.7.6" },
{ name = "httpx", extras = ["http2", "socks"], specifier = ">=0.27.0" },