fix asr result is empty and punc error

lzr265946

2023-01-18 ad873c50eed0d97dd3fe3c7f13a5dea9dc4c5369

fix asr result is empty and punc error

 funasr/bin/asr_inference_paraformer_vad_punc.py

@@ -635,9 +635,15 @@
                        text_postprocessed, time_stamp_postprocessed, word_lists = postprocessed_result[0], \
                                                                                   postprocessed_result[1], \
                                                                                   postprocessed_result[2]
                        text_postprocessed_punc, punc_id_list = text2punc(word_lists, 20)
                        text_postprocessed_punc_time_stamp = "predictions: {}  time_stamp: {}".format(
                            text_postprocessed_punc, time_stamp_postprocessed)
                        if len(word_lists) > 0: 
                            text_postprocessed_punc, punc_id_list = text2punc(word_lists, 20)
                            text_postprocessed_punc_time_stamp = "predictions: {}  time_stamp: {}".format(
                                text_postprocessed_punc, time_stamp_postprocessed)
                        else:
                            text_postprocessed_punc = ""
                            punc_id_list = []
                            text_postprocessed_punc_time_stamp = ""
                            
                    else:
                        text_postprocessed = ""
                        time_stamp_postprocessed = ""