From 630832e434707ec84db6dcda305f00119022559d Mon Sep 17 00:00:00 2001
From: rlaphoenix <rlaphoenix@pm.me>
Date: Sun, 23 Apr 2023 17:38:12 +0100
Subject: [PATCH] Ignore failed parsing of tenc boxes
Some services accidentally (? I presume) mix up the `tenc` box's data with that of an `avc1` box or similar. This causes total failure and crashing. However, in these scenarios there's usually a 2nd box further down the stream that is not an error and will parse correctly. So just skip these errors and continue.
---
devine/core/utilities.py | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/devine/core/utilities.py b/devine/core/utilities.py
index 9c5a236..541b054 100644
--- a/devine/core/utilities.py
+++ b/devine/core/utilities.py
@@ -16,6 +16,7 @@ from urllib.parse import urlparse
import pproxy
import requests
+from construct import ConstError
from langcodes import Language, closest_match
from pymp4.parser import Box
from unidecode import unidecode
@@ -146,6 +147,12 @@ def get_boxes(data: bytes, box_type: bytes, as_bytes: bool = False) -> Box:
except IOError:
# TODO: Does this miss any data we may need?
break
+ except ConstError as e:
+ if box_type == b"tenc":
+ # ignore this error on tenc boxes as the tenc definition isn't consistent
+ # some services don't even put valid data and mix it up with avc1...
+ continue
+ raise e
if as_bytes:
box = Box.build(box)
yield box