Creates tensor in target device to avoid high CPU occupation. (#695)

anyvoice

2023-07-02 cf36ce977c0b8bd54c906e63ce31931ac060178f

 funasr/datasets/iterable_dataset.py

@@ -8,13 +8,14 @@
from typing import Iterator
from typing import Tuple
from typing import Union
from typing import List

import kaldiio
import numpy as np
import torch
import torchaudio
import soundfile
from torch.utils.data.dataset import IterableDataset
from typeguard import check_argument_types
import os.path

from funasr.datasets.dataset import ESPnetDataset
@@ -65,8 +66,17 @@
        bytes = f.read()
    return load_bytes(bytes)

def load_wav(input):
    try:
        return torchaudio.load(input)[0].numpy()
    except:
        waveform, _ = soundfile.read(input, dtype='float32')
        if waveform.ndim == 2:
            waveform = waveform[:, 0]
        return np.expand_dims(waveform, axis=0)

DATA_TYPES = {
    "sound": lambda x: torchaudio.load(x)[0].numpy(),
    "sound": load_wav,
    "pcm": load_pcm,
    "kaldi_ark": load_kaldi,
    "bytes": load_bytes,
@@ -110,7 +120,6 @@
            int_dtype: str = "long",
            key_file: str = None,
    ):
        assert check_argument_types()
        if len(path_name_type_list) == 0:
            raise ValueError(
                '1 or more elements are required for "path_name_type_list"'
@@ -129,7 +138,7 @@
        non_iterable_list = []
        self.path_name_type_list = []

        if not isinstance(path_name_type_list[0], Tuple):
        if not isinstance(path_name_type_list[0], (Tuple, List)):
            path = path_name_type_list[0]
            name = path_name_type_list[1]
            _type = path_name_type_list[2]
@@ -227,13 +236,9 @@
                name = self.path_name_type_list[i][1]
                _type = self.path_name_type_list[i][2]
                if _type == "sound":
                    audio_type = os.path.basename(value).split(".")[-1].lower()
                    if audio_type not in SUPPORT_AUDIO_TYPE_SETS:
                        raise NotImplementedError(
                            f'Not supported audio type: {audio_type}')
                    if audio_type == "pcm":
                        _type = "pcm"

                   audio_type = os.path.basename(value).lower()
                   if audio_type.rfind(".pcm") >= 0:
                       _type = "pcm"
                func = DATA_TYPES[_type]
                array = func(value)
                if self.fs is not None and (name == "speech" or name == "ref_speech"):
@@ -335,11 +340,8 @@
                # 2.a. Load data streamingly
                for value, (path, name, _type) in zip(values, self.path_name_type_list):
                    if _type == "sound":
                        audio_type = os.path.basename(value).split(".")[-1].lower()
                        if audio_type not in SUPPORT_AUDIO_TYPE_SETS:
                            raise NotImplementedError(
                                f'Not supported audio type: {audio_type}')
                        if audio_type == "pcm":
                        audio_type = os.path.basename(value).lower()
                        if audio_type.rfind(".pcm") >= 0:
                            _type = "pcm"
                    func = DATA_TYPES[_type]
                    # Load entry
@@ -391,3 +393,4 @@

        if count == 0:
            raise RuntimeError("No iteration")