作者：姥姥的妹妹的儿子跟我没关系 | 来源：互联网 | 2023-09-11 19:06
test_fingerprint_by_splitting.pycreateslongfilefromtheexistingfilesinmp3/.
test_fingerprint_by_splitting.py creates long file from the existing files in mp3/.
to fingerprint with a length check you should use
djv.fingerprint_with_duration_check(long_song, song_name="Concatenates_test")
as shown in the split-test file
该提问来源于开源项目：worldveil/dejavu
The solution that worked for me to get the offsets correct is to (A) extract the offset (in seconds) as defined by the split file name (ex. start_sec60_end_sec120.mp3), (B) convert the seconds value to the equivalent sampling offset value, and (C) add the derived sampling offset value to the offset as determined by the fingerprinting process for the given file.
Note: I am using a different fork so some of the smaller details may be different ex. database.py naming.
(A) Extract Offset Data & (B) Extract Offset Data
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| # __init__.py
def _fingerprint_worker(filename, limit&＃061;None, song_name&＃061;None):
...
channel_amount &＃061; len(channels)
# Get Offset from name.
try:
first_split &＃061; song_name.split("start_sec", 1)
select_second &＃061; first_split[1]
second_split &＃061; select_second.split("_end_sec", 1)
# Convert second_split[0] to sampling offset
split_offset &＃061; round(
int(second_split[0]) * fingerprint.DEFAULT_FS /
fingerprint.DEFAULT_WINDOW_SIZE / fingerprint.DEFAULT_OVERLAP_RATIO,
5
)
except:
split_offset &＃061; 0
...
return song_name, result, file_hash, split_offset |
Iterate and Pass the Value
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| # __init__.py
while True:
try:
song_name, hashes, file_hash, split_offset &＃061; next(iterator)
...
else:
#sid &＃061; self.db.insert_song(song_name, file_hash) # REMOVE
if treat_as_split and song_name_for_the_split:
sid &＃061; self.db.insert_song(song_name_for_the_split, file_hash)
if not treat_as_split:
sid &＃061; self.db.insert_song(song_name, file_hash)
self.db.insert_hashes(sid, hashes, split_offset)
... |
(C) Apply Offset
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| # database.py
def insert_hashes(self, sid, hashes, split_offset&＃061;0):
...
for hash, offset in set(hashes):
fingerprints.append(
Fingerprint(
hash&＃061;binascii.unhexlify(hash),
song_id&＃061;sid,
offset&＃061;int(offset&＃043;split_offset)
)
)
self.session.bulk_save_objects(fingerprints) |
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