From 4daea3711063c64485be3c00eaa9727404549f51 Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期五, 24 二月 2023 17:55:00 +0800
Subject: [PATCH] onnx

---
 funasr/export/models/predictor/cif.py |    3 +
 funasr/export/export_model.py         |  105 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 funasr/export/models/__init__.py      |    1 
 3 files changed, 108 insertions(+), 1 deletions(-)

diff --git a/funasr/export/export_model.py b/funasr/export/export_model.py
index 3c73152..e1d5fdb 100644
--- a/funasr/export/export_model.py
+++ b/funasr/export/export_model.py
@@ -117,6 +117,111 @@
             dynamic_axes=model.get_dynamic_axes()
         )
 
+
+class ASRModelExport:
+    def __init__(self, cache_dir: Union[Path, str] = None, onnx: bool = True):
+        assert check_argument_types()
+        self.set_all_random_seed(0)
+        if cache_dir is None:
+            cache_dir = Path.home() / ".cache" / "export"
+        
+        self.cache_dir = Path(cache_dir)
+        self.export_config = dict(
+            feats_dim=560,
+            onnx=False,
+        )
+        print("output dir: {}".format(self.cache_dir))
+        self.onnx = onnx
+    
+    def _export(
+        self,
+        model: Speech2Text,
+        tag_name: str = None,
+        verbose: bool = False,
+    ):
+        
+        export_dir = self.cache_dir / tag_name.replace(' ', '-')
+        os.makedirs(export_dir, exist_ok=True)
+        
+        # export encoder1
+        self.export_config["model_name"] = "model"
+        model = get_model(
+            model,
+            self.export_config,
+        )
+        model.eval()
+        # self._export_onnx(model, verbose, export_dir)
+        if self.onnx:
+            self._export_onnx(model, verbose, export_dir)
+        else:
+            self._export_torchscripts(model, verbose, export_dir)
+        
+        print("output dir: {}".format(export_dir))
+    
+    def _export_torchscripts(self, model, verbose, path, enc_size=None):
+        if enc_size:
+            dummy_input = model.get_dummy_inputs(enc_size)
+        else:
+            dummy_input = model.get_dummy_inputs_txt()
+        
+        # model_script = torch.jit.script(model)
+        model_script = torch.jit.trace(model, dummy_input)
+        model_script.save(os.path.join(path, f'{model.model_name}.torchscripts'))
+    
+    def set_all_random_seed(self, seed: int):
+        random.seed(seed)
+        np.random.seed(seed)
+        torch.random.manual_seed(seed)
+    
+    def export(self,
+               tag_name: str = 'damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch',
+               mode: str = 'paraformer',
+               ):
+        
+        model_dir = tag_name
+        if model_dir.startswith('damo/'):
+            from modelscope.hub.snapshot_download import snapshot_download
+            model_dir = snapshot_download(model_dir, cache_dir=self.cache_dir)
+        asr_train_config = os.path.join(model_dir, 'config.yaml')
+        asr_model_file = os.path.join(model_dir, 'model.pb')
+        cmvn_file = os.path.join(model_dir, 'am.mvn')
+        json_file = os.path.join(model_dir, 'configuration.json')
+        if mode is None:
+            import json
+            with open(json_file, 'r') as f:
+                config_data = json.load(f)
+                mode = config_data['model']['model_config']['mode']
+        if mode.startswith('paraformer'):
+            from funasr.tasks.asr import ASRTaskParaformer as ASRTask
+        elif mode.startswith('uniasr'):
+            from funasr.tasks.asr import ASRTaskUniASR as ASRTask
+        
+        model, asr_train_args = ASRTask.build_model_from_file(
+            asr_train_config, asr_model_file, cmvn_file, 'cpu'
+        )
+        self._export(model, tag_name)
+    
+    def _export_onnx(self, model, verbose, path, enc_size=None):
+        if enc_size:
+            dummy_input = model.get_dummy_inputs(enc_size)
+        else:
+            dummy_input = model.get_dummy_inputs()
+        
+        # model_script = torch.jit.script(model)
+        model_script = model  # torch.jit.trace(model)
+        
+        torch.onnx.export(
+            model_script,
+            dummy_input,
+            os.path.join(path, f'{model.model_name}.onnx'),
+            verbose=verbose,
+            opset_version=12,
+            input_names=model.get_input_names(),
+            output_names=model.get_output_names(),
+            dynamic_axes=model.get_dynamic_axes()
+        )
+
+
 if __name__ == '__main__':
     import sys
     
diff --git a/funasr/export/models/__init__.py b/funasr/export/models/__init__.py
index ca2c813..27a65af 100644
--- a/funasr/export/models/__init__.py
+++ b/funasr/export/models/__init__.py
@@ -1,5 +1,6 @@
 from funasr.models.e2e_asr_paraformer import Paraformer
 from funasr.export.models.e2e_asr_paraformer import Paraformer as Paraformer_export
+from funasr.models.e2e_uni_asr import UniASR
 
 def get_model(model, export_config=None):
 
diff --git a/funasr/export/models/predictor/cif.py b/funasr/export/models/predictor/cif.py
index 5518cb8..fcfcd5f 100644
--- a/funasr/export/models/predictor/cif.py
+++ b/funasr/export/models/predictor/cif.py
@@ -109,7 +109,8 @@
 	frames = torch.stack(list_frames, 1)
 	list_ls = []
 	len_labels = torch.round(alphas.sum(-1)).int()
-	max_label_len = len_labels.max()
+	max_label_len = len_labels.max().item()
+	print("type: {}".format(type(max_label_len)))
 	for b in range(batch_size):
 		fire = fires[b, :]
 		l = torch.index_select(frames[b, :, :], 0, torch.nonzero(fire >= threshold).squeeze())

--
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