returnn.tf.util.open_fst¶
This provides ops as wrappers around OpenFst.
- returnn.tf.util.open_fst.get_fst(filename)[source]¶
- Parameters:
filename (str) – to OpenFst file
- Returns:
TF resource handle representing the FST
- Return type:
tf.Tensor
- returnn.tf.util.open_fst.fst_transition(fst_handle, states, inputs)[source]¶
- Parameters:
fst_handle (tf.Tensor) – via
get_fst()states (tf.Tensor) – [batch], int32
inputs (tf.Tensor) – [batch], int32
- Returns:
(next_states, output_labels, weights). next_states can be -1 if invalid. all are shape [batch].
- Return type:
(tf.Tensor,tf.Tensor,tf.Tensor)