mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-23 05:15:05 +00:00
59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
"""
|
|
Canon CR2 raw image data, version 2.0 image metadata extractor.
|
|
|
|
Authors: Fernando Crespo
|
|
Creation date: 21 february 2017
|
|
"""
|
|
|
|
from hachoir.metadata.metadata import (registerExtractor, RootMetadata)
|
|
from hachoir.parser.image import CR2File
|
|
from hachoir.metadata.safe import fault_tolerant
|
|
|
|
|
|
class CR2Metadata(RootMetadata):
|
|
key_to_attr = {
|
|
"ImageWidth": "width",
|
|
"ImageLength": "height",
|
|
"ImageDescription": "comment",
|
|
"DocumentName": "title",
|
|
"XResolution": "width_dpi",
|
|
"YResolution": "height_dpi",
|
|
}
|
|
|
|
def extract(self, tiff):
|
|
if "ifd[0]" in tiff:
|
|
self.useIFD(tiff["ifd[0]"])
|
|
self.camera_manufacturer = tiff["ifd[0]"]["value[4]"].value
|
|
self.camera_model = tiff["ifd[0]"]["value[5]"].value
|
|
|
|
if "exif[0]" in tiff:
|
|
self.date_time_original = tiff["exif[0]"]["value[7]"].value
|
|
self.date_time_digitized = tiff["exif[0]"]["value[8]"].value
|
|
|
|
def useIFD(self, ifd):
|
|
attr = {}
|
|
for entry in ifd.array("entry"):
|
|
self.processIfdEntry(ifd, entry, attr)
|
|
if 'BitsPerSample' in attr and 'SamplesPerPixel' in attr:
|
|
self.bits_per_pixel = attr[
|
|
'BitsPerSample'] * attr['SamplesPerPixel']
|
|
|
|
@fault_tolerant
|
|
def processIfdEntry(self, ifd, entry, attr):
|
|
tag = entry["tag"].display
|
|
if tag in {"BitsPerSample", "SamplesPerPixel"}:
|
|
value = ifd.getEntryValues(entry)[0].value
|
|
attr[tag] = value
|
|
return
|
|
|
|
try:
|
|
attrname = self.key_to_attr[tag]
|
|
except KeyError:
|
|
return
|
|
value = ifd.getEntryValues(entry)[0].value
|
|
if tag in {"XResolution", "YResolution"}:
|
|
value = round(value)
|
|
setattr(self, attrname, value)
|
|
|
|
|
|
registerExtractor(CR2File, CR2Metadata)
|