Support specifying providers in Python API (#198)

@@ -112,6 +112,7 @@ class OfflineRecognizer(object):
         feature_dim: int = 80,
         decoding_method: str = "greedy_search",
         debug: bool = False,
+        provider: str = "cpu",
     ):
         """
         Please refer to
@@ -138,6 +139,8 @@ class OfflineRecognizer(object):
             Valid values are greedy_search, modified_beam_search.
           debug:
             True to show debug messages.
+          provider:
+            onnxruntime execution providers. Valid values are: cpu, cuda, coreml.
         """
         self = cls.__new__(cls)
         model_config = OfflineModelConfig(
@@ -145,6 +148,7 @@ class OfflineRecognizer(object):
             tokens=tokens,
             num_threads=num_threads,
             debug=debug,
+            provider=provider,
         )
 
         feat_config = OfflineFeatureExtractorConfig(
@@ -170,6 +174,7 @@ class OfflineRecognizer(object):
         feature_dim: int = 80,
         decoding_method: str = "greedy_search",
         debug: bool = False,
+        provider: str = "cpu",
     ):
         """
         Please refer to
@@ -196,6 +201,8 @@ class OfflineRecognizer(object):
             Valid values are greedy_search, modified_beam_search.
           debug:
             True to show debug messages.
+          provider:
+            onnxruntime execution providers. Valid values are: cpu, cuda, coreml.
         """
         self = cls.__new__(cls)
         model_config = OfflineModelConfig(
@@ -203,6 +210,7 @@ class OfflineRecognizer(object):
             tokens=tokens,
             num_threads=num_threads,
             debug=debug,
+            provider=provider,
         )
 
         feat_config = OfflineFeatureExtractorConfig(

@@ -131,7 +131,7 @@ class OnlineRecognizer(object):
         self.recognizer = _Recognizer(recognizer_config)
         self.config = recognizer_config
 
-    def create_stream(self, contexts_list : Optional[List[List[int]]] = None):
+    def create_stream(self, contexts_list: Optional[List[List[int]]] = None):
         if contexts_list is None:
             return self.recognizer.create_stream()
         else:

@@ -72,6 +72,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 joiner=joiner,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s = recognizer.create_stream()
@@ -106,6 +107,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 joiner=joiner,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s0 = recognizer.create_stream()
@@ -143,6 +145,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 paraformer=model,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s = recognizer.create_stream()
@@ -172,6 +175,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 paraformer=model,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s0 = recognizer.create_stream()
@@ -214,6 +218,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 model=model,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s = recognizer.create_stream()
@@ -242,6 +247,7 @@ class TestOfflineRecognizer(unittest.TestCase):
                 model=model,
                 tokens=tokens,
                 num_threads=1,
+                provider="cpu",
             )
 
             s0 = recognizer.create_stream()

@@ -72,6 +72,7 @@ class TestOnlineRecognizer(unittest.TestCase):
                     tokens=tokens,
                     num_threads=1,
                     decoding_method=decoding_method,
+                    provider="cpu",
                 )
                 s = recognizer.create_stream()
                 samples, sample_rate = read_wave(wave0)
@@ -115,6 +116,7 @@ class TestOnlineRecognizer(unittest.TestCase):
                     tokens=tokens,
                     num_threads=1,
                     decoding_method=decoding_method,
+                    provider="cpu",
                 )
                 streams = []
                 waves = [wave0, wave1, wave2, wave3, wave4]