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import argparse |
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import os |
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import pathlib |
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from urllib.parse import urlparse |
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import warnings |
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import numpy as np |
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import whisper |
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import torch |
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from app import LANGUAGES, WhisperTranscriber |
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from src.download import download_url |
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from src.utils import optional_float, optional_int, str2bool |
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def cli(): |
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parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter) |
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parser.add_argument("audio", nargs="+", type=str, help="audio file(s) to transcribe") |
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parser.add_argument("--model", default="small", choices=["tiny", "base", "small", "medium", "large"], help="name of the Whisper model to use") |
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parser.add_argument("--model_dir", type=str, default=None, help="the path to save model files; uses ~/.cache/whisper by default") |
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parser.add_argument("--device", default="cuda" if torch.cuda.is_available() else "cpu", help="device to use for PyTorch inference") |
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parser.add_argument("--output_dir", "-o", type=str, default=".", help="directory to save the outputs") |
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parser.add_argument("--verbose", type=str2bool, default=True, help="whether to print out the progress and debug messages") |
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parser.add_argument("--task", type=str, default="transcribe", choices=["transcribe", "translate"], help="whether to perform X->X speech recognition ('transcribe') or X->English translation ('translate')") |
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parser.add_argument("--language", type=str, default=None, choices=sorted(LANGUAGES), help="language spoken in the audio, specify None to perform language detection") |
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parser.add_argument("--vad", type=str, default="none", choices=["none", "silero-vad", "silero-vad-skip-gaps", "periodic-vad"], help="The voice activity detection algorithm to use") |
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parser.add_argument("--vad_merge_window", type=optional_float, default=5, help="The window size (in seconds) to merge voice segments") |
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parser.add_argument("--vad_max_merge_size", type=optional_float, default=150, help="The maximum size (in seconds) of a voice segment") |
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parser.add_argument("--vad_padding", type=optional_float, default=1, help="The padding (in seconds) to add to each voice segment") |
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parser.add_argument("--temperature", type=float, default=0, help="temperature to use for sampling") |
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parser.add_argument("--best_of", type=optional_int, default=5, help="number of candidates when sampling with non-zero temperature") |
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parser.add_argument("--beam_size", type=optional_int, default=5, help="number of beams in beam search, only applicable when temperature is zero") |
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parser.add_argument("--patience", type=float, default=None, help="optional patience value to use in beam decoding, as in https://arxiv.org/abs/2204.05424, the default (1.0) is equivalent to conventional beam search") |
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parser.add_argument("--length_penalty", type=float, default=None, help="optional token length penalty coefficient (alpha) as in https://arxiv.org/abs/1609.08144, uses simple lengt normalization by default") |
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parser.add_argument("--suppress_tokens", type=str, default="-1", help="comma-separated list of token ids to suppress during sampling; '-1' will suppress most special characters except common punctuations") |
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parser.add_argument("--initial_prompt", type=str, default=None, help="optional text to provide as a prompt for the first window.") |
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parser.add_argument("--condition_on_previous_text", type=str2bool, default=True, help="if True, provide the previous output of the model as a prompt for the next window; disabling may make the text inconsistent across windows, but the model becomes less prone to getting stuck in a failure loop") |
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parser.add_argument("--fp16", type=str2bool, default=True, help="whether to perform inference in fp16; True by default") |
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parser.add_argument("--temperature_increment_on_fallback", type=optional_float, default=0.2, help="temperature to increase when falling back when the decoding fails to meet either of the thresholds below") |
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parser.add_argument("--compression_ratio_threshold", type=optional_float, default=2.4, help="if the gzip compression ratio is higher than this value, treat the decoding as failed") |
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parser.add_argument("--logprob_threshold", type=optional_float, default=-1.0, help="if the average log probability is lower than this value, treat the decoding as failed") |
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parser.add_argument("--no_speech_threshold", type=optional_float, default=0.6, help="if the probability of the <|nospeech|> token is higher than this value AND the decoding has failed due to `logprob_threshold`, consider the segment as silence") |
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args = parser.parse_args().__dict__ |
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model_name: str = args.pop("model") |
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model_dir: str = args.pop("model_dir") |
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output_dir: str = args.pop("output_dir") |
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device: str = args.pop("device") |
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os.makedirs(output_dir, exist_ok=True) |
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if model_name.endswith(".en") and args["language"] not in {"en", "English"}: |
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warnings.warn(f"{model_name} is an English-only model but receipted '{args['language']}'; using English instead.") |
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args["language"] = "en" |
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temperature = args.pop("temperature") |
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temperature_increment_on_fallback = args.pop("temperature_increment_on_fallback") |
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if temperature_increment_on_fallback is not None: |
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temperature = tuple(np.arange(temperature, 1.0 + 1e-6, temperature_increment_on_fallback)) |
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else: |
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temperature = [temperature] |
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vad = args.pop("vad") |
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vad_merge_window = args.pop("vad_merge_window") |
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vad_max_merge_size = args.pop("vad_max_merge_size") |
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vad_padding = args.pop("vad_padding") |
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model = whisper.load_model(model_name, device=device, download_root=model_dir) |
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transcriber = WhisperTranscriber(deleteUploadedFiles=False) |
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for audio_path in args.pop("audio"): |
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sources = [] |
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if (uri_validator(audio_path)): |
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for source_path in download_url(audio_path, maxDuration=-1, destinationDirectory=output_dir, playlistItems=None): |
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source_name = os.path.basename(source_path) |
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sources.append({ "path": source_path, "name": source_name }) |
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else: |
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sources.append({ "path": audio_path, "name": os.path.basename(audio_path) }) |
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for source in sources: |
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source_path = source["path"] |
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source_name = source["name"] |
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result = transcriber.transcribe_file(model, source_path, temperature=temperature, |
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vad=vad, vadMergeWindow=vad_merge_window, vadMaxMergeSize=vad_max_merge_size, |
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vadPadding=vad_padding, **args) |
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transcriber.write_result(result, source_name, output_dir) |
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transcriber.clear_cache() |
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def uri_validator(x): |
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try: |
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result = urlparse(x) |
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return all([result.scheme, result.netloc]) |
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except: |
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return False |
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if __name__ == '__main__': |
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cli() |
