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Update decoding.py #154

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Update decoding.py #154

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79de666
Update decoding.py
FernanOrtega Mar 27, 2023
dc6b8eb
Update decoding.py
FernanOrtega Mar 31, 2023
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7 changes: 7 additions & 0 deletions whisperx/decoding.py
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Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,13 @@ def apply(self, logits: Tensor, tokens: Tensor):
# timestamps shouldn't decrease; forbid timestamp tokens smaller than the last
logits[k, self.tokenizer.timestamp_begin : timestamps[-1]] = -np.inf

# to force that timestamps are strictly increasing
if last_was_timestamp and not penultimate_was_timestamp:
timestamp_last = timestamps[-1]
else:
timestamp_last = timestamps[-1] + 1
logits[k, self.tokenizer.timestamp_begin: timestamp_last] = -np.inf

if tokens.shape[1] == self.sample_begin:
# suppress generating non-timestamp tokens at the beginning
logits[:, : self.tokenizer.timestamp_begin] = -np.inf
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