Change improve fault tolerance of Hachoir jpeg parser.

Ignore fields not required for GPS tag parsing.

CHANGES.md

@@ -180,6 +180,7 @@
 * Fix never set episodes without airdate to wanted
 * Change improve getting the local timezone information
 * Change hachoir_parser to close input stream if no parser is found e.g. due to file corruption
+* Change improve fault tolerance of Hachoir jpeg parser
 * Change reduce time taken to parse avi RIFF metadata during post processing and other times
 * Change avi metadata extraction is more fault tolerant and the chance of hanging due to corrupt avi files is reduced
 * Change fuzzyMoment to handle air dates before ~1970 on display show page

HACKS.txt

@@ -4,6 +4,7 @@ Libs with customisations...
 /lib/dateutil/zoneinfo/__init__.py
 /lib/hachoir_core/config.py
 /lib/hachoir_core/stream/input_helpers.py
+/lib/hachoir_metadata/jpeg.py
 /lib/hachoir_metadata/metadata.py
 /lib/hachoir_metadata/riff.py
 /lib/hachoir_parser/guess.py

lib/hachoir_metadata/jpeg.py

@@ -210,6 +210,10 @@ class JpegMetadata(RootMetadata):
         datestamp = None
         for entry in ifd.array("entry"):
             tag = entry["tag"].display
+            if tag not in ["GPSLatitudeRef", "GPSLongitudeRef","GPSAltitudeRef",
+                           "GPSLatitude", "GPSLongitude", "GPSAltitude",
+                           "GPSDateStamp", "GPSTimeStamp"]:
+                continue
             values = [v.value for v in ifd.getEntryValues(entry)]
             if tag == "GPSLatitudeRef":
                 if values[0] == "N":