kwargs in decode() for convenience (#1061)

* kwargs in decode() for convenience

* formatting fix

Author: jongwook

whisper/decoding.py

@@ -1,4 +1,4 @@
-from dataclasses import dataclass, field
+from dataclasses import dataclass, field, replace
 from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Sequence, Tuple, Union
 
 import numpy as np
@@ -778,7 +778,10 @@ def run(self, mel: Tensor) -> List[DecodingResult]:
 
 @torch.no_grad()
 def decode(
-    model: "Whisper", mel: Tensor, options: DecodingOptions = DecodingOptions()
+    model: "Whisper",
+    mel: Tensor,
+    options: DecodingOptions = DecodingOptions(),
+    **kwargs,
 ) -> Union[DecodingResult, List[DecodingResult]]:
     """
     Performs decoding of 30-second audio segment(s), provided as Mel spectrogram(s).
@@ -802,6 +805,9 @@ def decode(
     if single := mel.ndim == 2:
         mel = mel.unsqueeze(0)
 
+    if kwargs:
+        options = replace(options, **kwargs)
+
     result = DecodingTask(model, options).run(mel)
 
     return result[0] if single else result