fix paraformer online fbank cache bug

haoneng.lhn

2023-05-18 47bd60924c47baefd37f9f12866ec0d24055bc62

fix paraformer online fbank cache bug

 funasr/bin/asr_infer.py

@@ -749,10 +749,13 @@
            feats = cache_en["feats"]
            feats_len = torch.tensor([feats.shape[1]])
            self.asr_model.frontend = None
            self.frontend.cache_reset()
            results = self.infer(feats, feats_len, cache)
            return results
        else:
            if self.frontend is not None:
                if cache_en["start_idx"] == 0:
                    self.frontend.cache_reset()
                feats, feats_len = self.frontend.forward(speech, speech_lengths, cache_en["is_final"])
                feats = to_device(feats, device=self.device)
                feats_len = feats_len.int()