mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-12-14 23:32:33 +00:00
176 lines
4.7 KiB
Python
176 lines
4.7 KiB
Python
"""No longer used and new code should not use. Exists only for API compat."""
|
|
|
|
import platform
|
|
import struct
|
|
import sys
|
|
import urllib.parse
|
|
import zlib
|
|
|
|
from ._utils import decode_base_n, preferredencoding
|
|
from .traversal import traverse_obj
|
|
from ..dependencies import certifi, websockets
|
|
|
|
# isort: split
|
|
from ..cookies import YoutubeDLCookieJar # noqa: F401
|
|
|
|
has_certifi = bool(certifi)
|
|
has_websockets = bool(websockets)
|
|
|
|
|
|
def load_plugins(name, suffix, namespace):
|
|
from ..plugins import load_plugins
|
|
ret = load_plugins(name, suffix)
|
|
namespace.update(ret)
|
|
return ret
|
|
|
|
|
|
def traverse_dict(dictn, keys, casesense=True):
|
|
return traverse_obj(dictn, keys, casesense=casesense, is_user_input=True, traverse_string=True)
|
|
|
|
|
|
def decode_base(value, digits):
|
|
return decode_base_n(value, table=digits)
|
|
|
|
|
|
def platform_name():
|
|
""" Returns the platform name as a str """
|
|
return platform.platform()
|
|
|
|
|
|
def get_subprocess_encoding():
|
|
if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
|
|
# For subprocess calls, encode with locale encoding
|
|
# Refer to http://stackoverflow.com/a/9951851/35070
|
|
encoding = preferredencoding()
|
|
else:
|
|
encoding = sys.getfilesystemencoding()
|
|
if encoding is None:
|
|
encoding = 'utf-8'
|
|
return encoding
|
|
|
|
|
|
# UNUSED
|
|
# Based on png2str() written by @gdkchan and improved by @yokrysty
|
|
# Originally posted at https://github.com/ytdl-org/youtube-dl/issues/9706
|
|
def decode_png(png_data):
|
|
# Reference: https://www.w3.org/TR/PNG/
|
|
header = png_data[8:]
|
|
|
|
if png_data[:8] != b'\x89PNG\x0d\x0a\x1a\x0a' or header[4:8] != b'IHDR':
|
|
raise OSError('Not a valid PNG file.')
|
|
|
|
int_map = {1: '>B', 2: '>H', 4: '>I'}
|
|
unpack_integer = lambda x: struct.unpack(int_map[len(x)], x)[0]
|
|
|
|
chunks = []
|
|
|
|
while header:
|
|
length = unpack_integer(header[:4])
|
|
header = header[4:]
|
|
|
|
chunk_type = header[:4]
|
|
header = header[4:]
|
|
|
|
chunk_data = header[:length]
|
|
header = header[length:]
|
|
|
|
header = header[4:] # Skip CRC
|
|
|
|
chunks.append({
|
|
'type': chunk_type,
|
|
'length': length,
|
|
'data': chunk_data
|
|
})
|
|
|
|
ihdr = chunks[0]['data']
|
|
|
|
width = unpack_integer(ihdr[:4])
|
|
height = unpack_integer(ihdr[4:8])
|
|
|
|
idat = b''
|
|
|
|
for chunk in chunks:
|
|
if chunk['type'] == b'IDAT':
|
|
idat += chunk['data']
|
|
|
|
if not idat:
|
|
raise OSError('Unable to read PNG data.')
|
|
|
|
decompressed_data = bytearray(zlib.decompress(idat))
|
|
|
|
stride = width * 3
|
|
pixels = []
|
|
|
|
def _get_pixel(idx):
|
|
x = idx % stride
|
|
y = idx // stride
|
|
return pixels[y][x]
|
|
|
|
for y in range(height):
|
|
basePos = y * (1 + stride)
|
|
filter_type = decompressed_data[basePos]
|
|
|
|
current_row = []
|
|
|
|
pixels.append(current_row)
|
|
|
|
for x in range(stride):
|
|
color = decompressed_data[1 + basePos + x]
|
|
basex = y * stride + x
|
|
left = 0
|
|
up = 0
|
|
|
|
if x > 2:
|
|
left = _get_pixel(basex - 3)
|
|
if y > 0:
|
|
up = _get_pixel(basex - stride)
|
|
|
|
if filter_type == 1: # Sub
|
|
color = (color + left) & 0xff
|
|
elif filter_type == 2: # Up
|
|
color = (color + up) & 0xff
|
|
elif filter_type == 3: # Average
|
|
color = (color + ((left + up) >> 1)) & 0xff
|
|
elif filter_type == 4: # Paeth
|
|
a = left
|
|
b = up
|
|
c = 0
|
|
|
|
if x > 2 and y > 0:
|
|
c = _get_pixel(basex - stride - 3)
|
|
|
|
p = a + b - c
|
|
|
|
pa = abs(p - a)
|
|
pb = abs(p - b)
|
|
pc = abs(p - c)
|
|
|
|
if pa <= pb and pa <= pc:
|
|
color = (color + a) & 0xff
|
|
elif pb <= pc:
|
|
color = (color + b) & 0xff
|
|
else:
|
|
color = (color + c) & 0xff
|
|
|
|
current_row.append(color)
|
|
|
|
return width, height, pixels
|
|
|
|
|
|
def register_socks_protocols():
|
|
# "Register" SOCKS protocols
|
|
# In Python < 2.6.5, urlsplit() suffers from bug https://bugs.python.org/issue7904
|
|
# URLs with protocols not in urlparse.uses_netloc are not handled correctly
|
|
for scheme in ('socks', 'socks4', 'socks4a', 'socks5'):
|
|
if scheme not in urllib.parse.uses_netloc:
|
|
urllib.parse.uses_netloc.append(scheme)
|
|
|
|
|
|
def handle_youtubedl_headers(headers):
|
|
filtered_headers = headers
|
|
|
|
if 'Youtubedl-no-compression' in filtered_headers:
|
|
filtered_headers = {k: v for k, v in filtered_headers.items() if k.lower() != 'accept-encoding'}
|
|
del filtered_headers['Youtubedl-no-compression']
|
|
|
|
return filtered_headers
|