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350 lines
13 KiB
350 lines
13 KiB
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import argparse
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import os
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import subprocess
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from collections import OrderedDict
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from typing import List
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from typing import Optional
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from typing import Union
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import kaldiio
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import numpy as np
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import paddle
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import soundfile
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from kaldiio import WriteHelper
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from yacs.config import CfgNode
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from ..executor import BaseExecutor
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from ..log import logger
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from ..utils import cli_register
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from ..utils import download_and_decompress
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from ..utils import MODEL_HOME
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from ..utils import stats_wrapper
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from .pretrained_models import kaldi_bins
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from .pretrained_models import model_alias
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from .pretrained_models import pretrained_models
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from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
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from paddlespeech.s2t.utils.dynamic_import import dynamic_import
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from paddlespeech.s2t.utils.utility import UpdateConfig
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__all__ = ["STExecutor"]
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@cli_register(
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name="paddlespeech.st", description="Speech translation infer command.")
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class STExecutor(BaseExecutor):
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def __init__(self):
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super().__init__()
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self.model_alias = model_alias
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self.pretrained_models = pretrained_models
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self.kaldi_bins = kaldi_bins
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self.parser = argparse.ArgumentParser(
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prog="paddlespeech.st", add_help=True)
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self.parser.add_argument(
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"--input", type=str, default=None, help="Audio file to translate.")
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self.parser.add_argument(
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"--model",
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type=str,
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default="fat_st_ted",
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choices=[
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tag[:tag.index('-')] for tag in self.pretrained_models.keys()
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],
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help="Choose model type of st task.")
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self.parser.add_argument(
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"--src_lang",
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type=str,
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default="en",
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help="Choose model source language.")
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self.parser.add_argument(
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"--tgt_lang",
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type=str,
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default="zh",
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help="Choose model target language.")
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self.parser.add_argument(
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"--sample_rate",
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type=int,
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default=16000,
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choices=[16000],
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help='Choose the audio sample rate of the model. 8000 or 16000')
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self.parser.add_argument(
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"--config",
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type=str,
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default=None,
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help="Config of st task. Use deault config when it is None.")
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self.parser.add_argument(
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"--ckpt_path",
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type=str,
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default=None,
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help="Checkpoint file of model.")
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self.parser.add_argument(
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"--device",
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type=str,
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default=paddle.get_device(),
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help="Choose device to execute model inference.")
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self.parser.add_argument(
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'-d',
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'--job_dump_result',
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action='store_true',
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help='Save job result into file.')
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self.parser.add_argument(
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'-v',
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'--verbose',
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action='store_true',
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help='Increase logger verbosity of current task.')
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def _set_kaldi_bins(self) -> os.PathLike:
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"""
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Download and returns kaldi_bins resources path of current task.
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"""
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decompressed_path = download_and_decompress(self.kaldi_bins, MODEL_HOME)
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decompressed_path = os.path.abspath(decompressed_path)
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logger.info("Kaldi_bins stored in: {}".format(decompressed_path))
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if "LD_LIBRARY_PATH" in os.environ:
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os.environ["LD_LIBRARY_PATH"] += f":{decompressed_path}"
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else:
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os.environ["LD_LIBRARY_PATH"] = f"{decompressed_path}"
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os.environ["PATH"] += f":{decompressed_path}"
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return decompressed_path
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def _init_from_path(self,
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model_type: str="fat_st_ted",
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src_lang: str="en",
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tgt_lang: str="zh",
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cfg_path: Optional[os.PathLike]=None,
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ckpt_path: Optional[os.PathLike]=None):
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"""
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Init model and other resources from a specific path.
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"""
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if hasattr(self, 'model'):
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logger.info('Model had been initialized.')
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return
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if cfg_path is None or ckpt_path is None:
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tag = model_type + "-" + src_lang + "-" + tgt_lang
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res_path = self._get_pretrained_path(tag)
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self.cfg_path = os.path.join(res_path,
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pretrained_models[tag]["cfg_path"])
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self.ckpt_path = os.path.join(res_path,
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pretrained_models[tag]["ckpt_path"])
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logger.info(res_path)
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logger.info(self.cfg_path)
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logger.info(self.ckpt_path)
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else:
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self.cfg_path = os.path.abspath(cfg_path)
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self.ckpt_path = os.path.abspath(ckpt_path)
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res_path = os.path.dirname(
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os.path.dirname(os.path.abspath(self.cfg_path)))
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#Init body.
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self.config = CfgNode(new_allowed=True)
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self.config.merge_from_file(self.cfg_path)
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self.config.decode.decoding_method = "fullsentence"
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with UpdateConfig(self.config):
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self.config.cmvn_path = os.path.join(res_path,
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self.config.cmvn_path)
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self.config.spm_model_prefix = os.path.join(
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res_path, self.config.spm_model_prefix)
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self.text_feature = TextFeaturizer(
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unit_type=self.config.unit_type,
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vocab=self.config.vocab_filepath,
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spm_model_prefix=self.config.spm_model_prefix)
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model_conf = self.config
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model_name = model_type[:model_type.rindex(
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'_')] # model_type: {model_name}_{dataset}
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model_class = dynamic_import(model_name, self.model_alias)
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self.model = model_class.from_config(model_conf)
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self.model.eval()
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# load model
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params_path = self.ckpt_path
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model_dict = paddle.load(params_path)
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self.model.set_state_dict(model_dict)
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# set kaldi bins
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self._set_kaldi_bins()
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def _check(self, audio_file: str, sample_rate: int):
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_, audio_sample_rate = soundfile.read(
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audio_file, dtype="int16", always_2d=True)
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if audio_sample_rate != sample_rate:
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raise Exception("invalid sample rate")
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sys.exit(-1)
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def preprocess(self, wav_file: Union[str, os.PathLike], model_type: str):
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"""
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Input preprocess and return paddle.Tensor stored in self.input.
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Input content can be a file(wav).
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"""
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audio_file = os.path.abspath(wav_file)
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logger.info("Preprocess audio_file:" + audio_file)
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if "fat_st" in model_type:
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cmvn = self.config.cmvn_path
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utt_name = "_tmp"
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# Get the object for feature extraction
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fbank_extract_command = [
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"compute-fbank-feats", "--num-mel-bins=80", "--verbose=2",
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"--sample-frequency=16000", "scp:-", "ark:-"
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]
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fbank_extract_process = subprocess.Popen(
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fbank_extract_command,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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fbank_extract_process.stdin.write(
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f"{utt_name} {wav_file}".encode("utf8"))
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fbank_extract_process.stdin.close()
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fbank_feat = dict(
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kaldiio.load_ark(fbank_extract_process.stdout))[utt_name]
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extract_command = ["compute-kaldi-pitch-feats", "scp:-", "ark:-"]
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pitch_extract_process = subprocess.Popen(
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extract_command,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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pitch_extract_process.stdin.write(
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f"{utt_name} {wav_file}".encode("utf8"))
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process_command = ["process-kaldi-pitch-feats", "ark:", "ark:-"]
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pitch_process = subprocess.Popen(
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process_command,
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stdin=pitch_extract_process.stdout,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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pitch_extract_process.stdin.close()
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pitch_feat = dict(kaldiio.load_ark(pitch_process.stdout))[utt_name]
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concated_feat = np.concatenate((fbank_feat, pitch_feat), axis=1)
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raw_feat = f"{utt_name}.raw"
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with WriteHelper(
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f"ark,scp:{raw_feat}.ark,{raw_feat}.scp") as writer:
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writer(utt_name, concated_feat)
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cmvn_command = [
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"apply-cmvn", "--norm-vars=true", cmvn, f"scp:{raw_feat}.scp",
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"ark:-"
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]
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cmvn_process = subprocess.Popen(
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cmvn_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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process_command = [
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"copy-feats", "--compress=true", "ark:-", "ark:-"
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]
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process = subprocess.Popen(
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process_command,
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stdin=cmvn_process.stdout,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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norm_feat = dict(kaldiio.load_ark(process.stdout))[utt_name]
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self._inputs["audio"] = paddle.to_tensor(norm_feat).unsqueeze(0)
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self._inputs["audio_len"] = paddle.to_tensor(
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self._inputs["audio"].shape[1], dtype="int64")
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else:
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raise ValueError("Wrong model type.")
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@paddle.no_grad()
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def infer(self, model_type: str):
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"""
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Model inference and result stored in self.output.
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"""
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cfg = self.config.decode
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audio = self._inputs["audio"]
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audio_len = self._inputs["audio_len"]
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if model_type == "fat_st_ted":
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hyps = self.model.decode(
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audio,
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audio_len,
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text_feature=self.text_feature,
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decoding_method=cfg.decoding_method,
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beam_size=cfg.beam_size,
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word_reward=cfg.word_reward,
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decoding_chunk_size=cfg.decoding_chunk_size,
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num_decoding_left_chunks=cfg.num_decoding_left_chunks,
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simulate_streaming=cfg.simulate_streaming)
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self._outputs["result"] = hyps
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else:
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raise ValueError("Wrong model type.")
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def postprocess(self, model_type: str) -> Union[str, os.PathLike]:
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"""
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Output postprocess and return human-readable results such as texts and audio files.
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"""
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if model_type == "fat_st_ted":
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return self._outputs["result"]
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else:
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raise ValueError("Wrong model type.")
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def execute(self, argv: List[str]) -> bool:
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"""
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Command line entry.
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"""
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parser_args = self.parser.parse_args(argv)
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model = parser_args.model
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src_lang = parser_args.src_lang
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tgt_lang = parser_args.tgt_lang
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sample_rate = parser_args.sample_rate
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config = parser_args.config
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ckpt_path = parser_args.ckpt_path
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device = parser_args.device
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if not parser_args.verbose:
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self.disable_task_loggers()
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task_source = self.get_task_source(parser_args.input)
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task_results = OrderedDict()
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has_exceptions = False
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for id_, input_ in task_source.items():
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try:
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res = self(input_, model, src_lang, tgt_lang, sample_rate,
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config, ckpt_path, device)
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task_results[id_] = res
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except Exception as e:
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has_exceptions = True
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task_results[id_] = f'{e.__class__.__name__}: {e}'
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self.process_task_results(parser_args.input, task_results,
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parser_args.job_dump_result)
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if has_exceptions:
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return False
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else:
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return True
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@stats_wrapper
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def __call__(self,
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audio_file: os.PathLike,
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model: str='fat_st_ted',
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src_lang: str='en',
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tgt_lang: str='zh',
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sample_rate: int=16000,
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config: Optional[os.PathLike]=None,
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ckpt_path: Optional[os.PathLike]=None,
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device: str=paddle.get_device()):
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"""
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Python API to call an executor.
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"""
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audio_file = os.path.abspath(audio_file)
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self._check(audio_file, sample_rate)
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paddle.set_device(device)
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self._init_from_path(model, src_lang, tgt_lang, config, ckpt_path)
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self.preprocess(audio_file, model)
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self.infer(model)
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res = self.postprocess(model)
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return res
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