1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
"""
Monkey-patch for mpegdash to handle non-integer AdaptationSet id/group attributes.
TIDAL recently started returning MPD manifests with string values like "main"
for the AdaptationSet `id` and `group` attributes, which mpegdash expects to be integers.
This causes a ValueError: invalid literal for int() with base 10: 'main'
This patch modifies the parse_attr_value function to gracefully handle
non-integer values for attributes that are expected to be integers.
"""
import logging
import re
logger = logging.getLogger(__name__)
_patched = False
def _safe_int(value: str) -> int | None:
"""Safely convert a value to int, returning None if conversion fails."""
try:
return int(value)
except (ValueError, TypeError):
return None
def _convert_list(attr_val: str, value_type) -> list[str]:
attr_type = value_type[0] if value_type else str
try:
return [attr_type(elem) for elem in re.split(r"[, ]", attr_val)]
except (ValueError, TypeError):
return [str(elem) for elem in re.split(r"[, ]", attr_val)]
def _convert_single(attr_name: str, attr_val: str, value_type):
if value_type == int:
result = _safe_int(attr_val)
if result is None:
logger.debug(
"mpegdash: Could not convert '%s'='%s' to int, using None",
attr_name,
attr_val,
)
return result
try:
return value_type(attr_val)
except (ValueError, TypeError):
logger.debug(
"mpegdash: Could not convert '%s'='%s' to %s, using None",
attr_name,
attr_val,
value_type.__name__,
)
return None
def apply_mpegdash_patch() -> None:
"""
Apply a monkey-patch to mpegdash to handle string values in integer fields.
This patches the parse_attr_value function in mpegdash.utils to gracefully
handle non-integer values (like "main") for attributes expected to be integers.
"""
global _patched
if _patched:
return
try:
from mpegdash import utils as mpegdash_utils
def patched_parse_attr_value(xmlnode, attr_name, value_type):
if attr_name not in xmlnode.attributes:
return None
attr_val = xmlnode.attributes[attr_name].nodeValue
if isinstance(value_type, list):
return _convert_list(attr_val, value_type)
return _convert_single(attr_name, attr_val, value_type)
mpegdash_utils.parse_attr_value = patched_parse_attr_value
_patched = True
logger.debug("mpegdash patch applied successfully")
except ImportError:
logger.warning("Could not import mpegdash, patch not applied")
except Exception as e:
logger.warning("Failed to apply mpegdash patch: %s", e)
|
