feat: sync with latest code, added legacy v1 model support

fixes #2

app_multi.py

@@ -19,6 +19,8 @@ import edge_tts
 import config
 import util
 from infer_pack.models import (
+    SynthesizerTrnMs256NSFsid,
+    SynthesizerTrnMs256NSFsid_nono,
     SynthesizerTrnMs768NSFsid,
     SynthesizerTrnMs768NSFsid_nono
 )
@@ -110,15 +112,32 @@ for model_name in multi_cfg.get('models'):
     tgt_sr = cpt['config'][-1]
     cpt['config'][-3] = cpt['weight']['emb_g.weight'].shape[0]  # n_spk
 
+    cpt_version = cpt.get('version', 'v1')
+    print(f'Model version: {cpt_version}')
+
     if_f0 = cpt.get('f0', 1)
-    net_g: Union[SynthesizerTrnMs768NSFsid, SynthesizerTrnMs768NSFsid_nono]
+
+    net_g: Union[
+        SynthesizerTrnMs256NSFsid, SynthesizerTrnMs256NSFsid_nono,
+        SynthesizerTrnMs768NSFsid, SynthesizerTrnMs768NSFsid_nono
+    ]
+
     if if_f0 == 1:
-        net_g = SynthesizerTrnMs768NSFsid(
-            *cpt['config'],
-            is_half=util.is_half(config.device)
-        )
+        if cpt_version == 'v2':
+            net_g = SynthesizerTrnMs768NSFsid(
+                *cpt['config'],
+                is_half=config.is_half
+            )
+        else:
+            net_g = SynthesizerTrnMs256NSFsid(
+                *cpt['config'],
+                is_half=config.is_half
+            )
     else:
-        net_g = SynthesizerTrnMs768NSFsid_nono(*cpt['config'])
+        if cpt_version == 'v2':
+            net_g = SynthesizerTrnMs768NSFsid_nono(*cpt['config'])
+        else:
+            net_g = SynthesizerTrnMs256NSFsid_nono(*cpt['config'])
 
     del net_g.enc_q
 
@@ -136,7 +155,8 @@ for model_name in multi_cfg.get('models'):
         vc=vc,
         net_g=net_g,
         if_f0=if_f0,
-        target_sr=tgt_sr
+        target_sr=tgt_sr,
+        version=cpt_version
     ))
 
 print(f'Models loaded: {len(loaded_models)}')
@@ -209,7 +229,7 @@ def vc_func(
         model['target_sr'],
         resample,
         rms_mix_rate,
-        'v2'
+        model['version']
     )
 
     out_sr = (