espnet.nets.pytorch_backend.transducer.utils.get_decoder_input

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espnet.nets.pytorch_backend.transducer.utils.get_decoder_input(labels: Tensor, blank_id: int, ignore_id: int) → Tensor

Prepare decoder input.

• Parameters:labels – Label ID sequences. (B, L)
• Returns: Label ID sequences with blank prefix. (B, U)
• Return type: decoder_input