| | |
| | | except: |
| | | print("urllib is not installed, if you infer from url, please install it first.") |
| | | import pdb |
| | | import subprocess |
| | | from subprocess import CalledProcessError, run |
| | | |
| | | def is_ffmpeg_installed(): |
| | | try: |
| | | output = subprocess.check_output(['ffmpeg', '-version'], stderr=subprocess.STDOUT) |
| | | return 'ffmpeg version' in output.decode('utf-8') |
| | | except (subprocess.CalledProcessError, FileNotFoundError): |
| | | return False |
| | | |
| | | use_ffmpeg=False |
| | | if is_ffmpeg_installed(): |
| | | use_ffmpeg = True |
| | | else: |
| | | print("Notice: ffmpeg is not installed. torchaudio is used to load audio\n" |
| | | "If you want to use ffmpeg backend to load audio, please install it by:" |
| | | "\n\tsudo apt install ffmpeg # ubuntu" |
| | | "\n\t# brew install ffmpeg # mac") |
| | | |
| | | def load_audio_text_image_video(data_or_path_or_list, fs: int = 16000, audio_fs: int = 16000, data_type="sound", tokenizer=None, **kwargs): |
| | | if isinstance(data_or_path_or_list, (list, tuple)): |
| | |
| | | return [load_audio_text_image_video(audio, fs=fs, audio_fs=audio_fs, data_type=data_type, **kwargs) for audio in data_or_path_or_list] |
| | | if isinstance(data_or_path_or_list, str) and data_or_path_or_list.startswith('http'): # download url to local file |
| | | data_or_path_or_list = download_from_url(data_or_path_or_list) |
| | | |
| | | if isinstance(data_or_path_or_list, str) and os.path.exists(data_or_path_or_list): # local file |
| | | if data_type is None or data_type == "sound": |
| | | data_or_path_or_list, audio_fs = torchaudio.load(data_or_path_or_list) |
| | | if kwargs.get("reduce_channels", True): |
| | | data_or_path_or_list = data_or_path_or_list.mean(0) |
| | | # if use_ffmpeg: |
| | | # data_or_path_or_list = _load_audio_ffmpeg(data_or_path_or_list, sr=fs) |
| | | # data_or_path_or_list = torch.from_numpy(data_or_path_or_list).squeeze() # [n_samples,] |
| | | # else: |
| | | # data_or_path_or_list, audio_fs = torchaudio.load(data_or_path_or_list) |
| | | # if kwargs.get("reduce_channels", True): |
| | | # data_or_path_or_list = data_or_path_or_list.mean(0) |
| | | try: |
| | | data_or_path_or_list, audio_fs = torchaudio.load(data_or_path_or_list) |
| | | if kwargs.get("reduce_channels", True): |
| | | data_or_path_or_list = data_or_path_or_list.mean(0) |
| | | except: |
| | | data_or_path_or_list = _load_audio_ffmpeg(data_or_path_or_list, sr=fs) |
| | | data_or_path_or_list = torch.from_numpy(data_or_path_or_list).squeeze() # [n_samples,] |
| | | elif data_type == "text" and tokenizer is not None: |
| | | data_or_path_or_list = tokenizer.encode(data_or_path_or_list) |
| | | elif data_type == "image": # undo |
| | |
| | | return array |
| | | |
| | | def extract_fbank(data, data_len = None, data_type: str="sound", frontend=None, **kwargs): |
| | | # import pdb; |
| | | # pdb.set_trace() |
| | | if isinstance(data, np.ndarray): |
| | | data = torch.from_numpy(data) |
| | | if len(data.shape) < 2: |
| | |
| | | data_len = torch.tensor([data_len]) |
| | | return data.to(torch.float32), data_len.to(torch.int32) |
| | | |
| | | def _load_audio_ffmpeg(file: str, sr: int = 16000): |
| | | """ |
| | | Open an audio file and read as mono waveform, resampling as necessary |
| | | |
| | | Parameters |
| | | ---------- |
| | | file: str |
| | | The audio file to open |
| | | |
| | | sr: int |
| | | The sample rate to resample the audio if necessary |
| | | |
| | | Returns |
| | | ------- |
| | | A NumPy array containing the audio waveform, in float32 dtype. |
| | | """ |
| | | |
| | | # This launches a subprocess to decode audio while down-mixing |
| | | # and resampling as necessary. Requires the ffmpeg CLI in PATH. |
| | | # fmt: off |
| | | cmd = [ |
| | | "ffmpeg", |
| | | "-nostdin", |
| | | "-threads", "0", |
| | | "-i", file, |
| | | "-f", "s16le", |
| | | "-ac", "1", |
| | | "-acodec", "pcm_s16le", |
| | | "-ar", str(sr), |
| | | "-" |
| | | ] |
| | | # fmt: on |
| | | try: |
| | | out = run(cmd, capture_output=True, check=True).stdout |
| | | except CalledProcessError as e: |
| | | raise RuntimeError(f"Failed to load audio: {e.stderr.decode()}") from e |
| | | |
| | | return np.frombuffer(out, np.int16).flatten().astype(np.float32) / 32768.0 |