[bilibili]can't download for new format

[kesdoputr]

Bilibili seems change it's video number format
The two url direct to same video
https://www.bilibili.com/video/av98307847
https://www.bilibili.com/video/BV1JE411F741

youtube-dl can't download the second link with BV start

C:\Users\k7\Desktop>youtube-dl -F https://www.bilibili.com/video/BV1JE411F741
[generic] BV1JE411F741: Requesting header
WARNING: Falling back on generic information extractor.
[generic] BV1JE411F741: Downloading webpage
[generic] BV1JE411F741: Extracting information
WARNING: [generic] BV1JE411F741: Failed to parse JSON Invalid control character
at: line 1 column 106 (char 105)
ERROR: Unsupported URL: https://www.bilibili.com/video/BV1JE411F741

C:\Users\k7\Desktop>youtube-dl -F https://www.bilibili.com/video/av98307847
[BiliBili] 98307847: Downloading webpage
[BiliBili] 98307847: Downloading video info page
[info] Available formats for 98307847:
format code extension resolution note
0 flv unknown 2.21GiB

[SekiBetu]

eventually av-xxxxxxxx will gone

[mwx2006]

_VALID_URL = r'https?://(?:www\.|bangumi\.|)bilibili\.(?:tv|com)/(?:video/av|anime/(?P<anime_id>\d+)/play#)(?P<id>\d+)'

_VALID_URL = r'https?://(?:www\.|bangumi\.|)bilibili\.(?:tv|com)/(?:video/BV|anime/(?P<anime_id>\d+)/play#)(?P<id>\d+)'

[GrayXu]

share an AV<->BV transformation method from mcfx Zhihu

table='fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF'
tr={}
for i in range(58):
	tr[table[i]]=i
s=[11,10,3,8,4,6,2,9,5,7]
xor=177451812
add=100618342136696320

def dec(x):
	r=0
	for i in range(10):
		r+=tr[x[s[i]]]*58**i
	return (r-add)^xor

def enc(x):
	x=(x^xor)+add
	r=list('BV          ')
	for i in range(10):
		r[s[i]]=table[x//58**i%58]
	return ''.join(r)

print(dec('BV17x411w7KC'))
print(dec('BV1Q541167Qg'))
print(dec('BV1mK4y1C7Bz'))
print(enc(170001))
print(enc(455017605))
print(enc(882584971))

[SekiBetu]

share an AV<->BV transformation method from mcfx Zhihu

table='fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF'
tr={}
for i in range(58):
	tr[table[i]]=i
s=[11,10,3,8,4,6,2,9,5,7]
xor=177451812
add=100618342136696320

def dec(x):
	r=0
	for i in range(10):
		r+=tr[x[s[i]]]*58**i
	return (r-add)^xor

def enc(x):
	x=(x^xor)+add
	r=list('BV          ')
	for i in range(10):
		r[s[i]]=table[x//58**i%58]
	return ''.join(r)

print(dec('BV17x411w7KC'))
print(dec('BV1Q541167Qg'))
print(dec('BV1mK4y1C7Bz'))
print(enc(170001))
print(enc(455017605))
print(enc(882584971))

no, it's not a universal solution, it only works when av number < 2^30