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unicode -> ascii #5

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Merged
artfwo merged 1 commit into from
Sep 22, 2022
Merged

unicode -> ascii #5

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10 changes: 5 additions & 5 deletions tinyxmp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -210,14 +210,14 @@ def _process(self, new_xmp=None):
file_pos = f.tell()
chunk_length, chunk_type, chunk_data, chunk_crc = self._read_chunk(f)

if chunk_type == "IHDR":
if chunk_type == b'IHDR':
xmp_seg_pos = f.tell()
elif chunk_type == "iTXt" and chunk_data.startswith(b'XML:com.adobe.xmp\x00\x00\x00\x00\x00'):
elif chunk_type == b'iTXt' and chunk_data.startswith(b'XML:com.adobe.xmp\x00\x00\x00\x00\x00'):
xmp_seg_pos = file_pos
xmp_seg_size = chunk_length + 12
xmp_packet = chunk_data[22:] # strip namespace
break
elif chunk_type == "IEND":
elif chunk_type == b'IEND':
break
finally:
f.close()
Expand All @@ -240,7 +240,7 @@ def _process(self, new_xmp=None):
temp.write(buf)

new_xmp = pad_packet(new_xmp, (len(new_xmp) // 4000 + 1) * 4000)
self._write_chunk(temp, "iTXt", b'XML:com.adobe.xmp\x00\x00\x00\x00\x00' + new_xmp)
self._write_chunk(temp, b'iTXt', b'XML:com.adobe.xmp\x00\x00\x00\x00\x00' + new_xmp)

f.seek(xmp_seg_size, 1)
buf = f.read()
Expand All @@ -258,7 +258,7 @@ def _process(self, new_xmp=None):
f = open(self.filename, "r+b")
f.seek(xmp_seg_pos)
new_xmp = pad_packet(new_xmp, len(xmp_packet))
self._write_chunk(f, "iTXt", b'XML:com.adobe.xmp\x00\x00\x00\x00\x00' + new_xmp)
self._write_chunk(f, b'iTXt', b'XML:com.adobe.xmp\x00\x00\x00\x00\x00' + new_xmp)
finally:
f.close()

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