import base64
import io
-import sys
+import struct
from .common import InfoExtractor
-from ..compat import (
- compat_b64decode,
- compat_struct_unpack,
-)
+from ..compat import compat_b64decode
from ..utils import (
- determine_ext,
ExtractorError,
+ determine_ext,
float_or_none,
qualities,
remove_end,
try_get,
)
-_bytes_to_chr = (lambda x: x) if sys.version_info[0] == 2 else (lambda x: map(chr, x))
-
class RTVEALaCartaIE(InfoExtractor):
IE_NAME = 'rtve.es:alacarta'
def _decrypt_url(png):
encrypted_data = io.BytesIO(compat_b64decode(png)[8:])
while True:
- length = compat_struct_unpack('!I', encrypted_data.read(4))[0]
+ length = struct.unpack('!I', encrypted_data.read(4))[0]
chunk_type = encrypted_data.read(4)
if chunk_type == b'IEND':
break
alphabet = []
e = 0
d = 0
- for l in _bytes_to_chr(alphabet_data):
+ for l in alphabet_data.decode('iso-8859-1'):
if d == 0:
alphabet.append(l)
d = e = (e + 1) % 4
f = 0
e = 3
b = 1
- for letter in _bytes_to_chr(url_data):
+ for letter in url_data.decode('iso-8859-1'):
if f == 0:
l = int(letter) * 10
f = 1