#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
#  MIT License  (https://opensource.org/licenses/MIT)

from funasr import AutoModel

wav_file = "https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/vad_example.wav"

model = AutoModel(model="iic/speech_fsmn_vad_zh-cn-16k-common-pytorch")

res = model.generate(input=wav_file)
print(res)

# [[beg1, end1], [beg2, end2], .., [begN, endN]]
# beg/end: ms


import soundfile
import os

wav_file = os.path.join(model.model_path, "example/vad_example.wav")
speech, sample_rate = soundfile.read(wav_file)

chunk_size = 200  # ms
chunk_stride = int(chunk_size * sample_rate / 1000)

cache = {}

total_chunk_num = int(len((speech) - 1) / chunk_stride + 1)
for i in range(total_chunk_num):
    speech_chunk = speech[i * chunk_stride : (i + 1) * chunk_stride]
    is_final = i == total_chunk_num - 1
    res = model.generate(
        input=speech_chunk,
        cache=cache,
        is_final=is_final,
        chunk_size=chunk_size,
        disable_pbar=True,
    )
    # print(res)
    if len(res[0]["value"]):
        print(res)


# 1. [[beg1, end1], [beg2, end2], .., [begN, endN]]; [[beg, end]]; [[beg1, end1], [beg2, end2]]
# 2. [[beg, -1]]
# 3. [[-1, end]]
# beg/end: ms