OGG Vorbis file save fails: mutagen.ogg.error: unable to read full header; got b'\x00\x00' about mutagen HOT 3 OPEN

Without a file to look into it's not really possible to say much about this. mutagen fails reading an ogg page header inside the file, so it looks like there is at least some corrupted data structure inside the file.

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Without a file to look into it's not really possible to say much about this. mutagen fails reading an ogg page header inside the file, so it looks like there is at least some corrupted data structure inside the file.

I have the same issue and have a file I can share. How can I share you the file privately?

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Ran into the same issue.
As a quick workaround you can disable metadata padding during save:

mutagen_file.save(padding=lambda info: 0)

Ref.: https://mutagen.readthedocs.io/en/latest/user/padding.html

Attached below is a test file and a minimal example to reproduce the issue
Sinewave_Sweep.zip

import mutagen

file_path = "Sinewave_Sweep.ogg"
mutagen_handle = mutagen.File(file_path)

mutagen_handle["artist"] = u'AAAAAAAAAAAAAAAABBBBBBBBBBBBBBBB'
mutagen_handle["title"] = u'CCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDD'
mutagen_handle["album"] = u'EEEEEEEEEEEEEEEEFFFFFFFFFFFFFFFF'
mutagen_handle["comment"] = u'GGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHH'  

mutagen_handle.save()

From my example
Header at offset 2899534
b'OggS\x00\x04\xac\xaak\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa6\x02\x00\x00\x87\xb8\x86\xa7\x10'
oggs b'OggS', version 0, type flags 4, position 7056044, serial 0, sequence 678, crc -1484343161, segments 16
Header at offset 2902121
b'\x00\x00' -> throws in ogg.py line 91 trying to struct.unpack("<4sBBqIIiB", ..) these bytes.

It always throws at the last Ogg page, trying to interpret the last couple null bytes as a header.
The file still gets saved and once ran, the same ogg file will no longer cause the issue.

However, the offsets also wildly change. On the file that errored previously the last two segments are now
Header at offset 27
b'OggS\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#SN\xcb\x01'
oggs b'OggS', version 0, type flags 2, position 0, serial 0, sequence 0, crc -884059357, segments 1
Header at offset 85
b'OggS\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe6\xe6(\x8e\x11'
oggs b'OggS', version 0, type flags 0, position 0, serial 0, sequence 1, crc -1909922074, segments 17

The same error will return once if you massively increase the size of the metadata (say * 100 for each tag).
(also if the metadata is being reduced a lot)
Maybe there's something in the file messing up the padding calculation when resizing the metadata section.

Couldn't tell what about my file is corrupt though. I hope someone more familiar with the format can spot the problem :)

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