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| import argparse | |
| import os | |
| import pathlib | |
| from urllib.parse import urlparse | |
| import warnings | |
| import numpy as np | |
| import whisper | |
| import torch | |
| from app import LANGUAGES, WhisperTranscriber | |
| from download import download_url | |
| from utils import optional_float, optional_int, str2bool | |
| def cli(): | |
| parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter) | |
| parser.add_argument("audio", nargs="+", type=str, help="audio file(s) to transcribe") | |
| parser.add_argument("--model", default="small", choices=["tiny", "base", "small", "medium", "large"], help="name of the Whisper model to use") | |
| parser.add_argument("--model_dir", type=str, default=None, help="the path to save model files; uses ~/.cache/whisper by default") | |
| parser.add_argument("--device", default="cuda" if torch.cuda.is_available() else "cpu", help="device to use for PyTorch inference") | |
| parser.add_argument("--output_dir", "-o", type=str, default=".", help="directory to save the outputs") | |
| parser.add_argument("--verbose", type=str2bool, default=True, help="whether to print out the progress and debug messages") | |
| 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')") | |
| parser.add_argument("--language", type=str, default=None, choices=sorted(LANGUAGES), help="language spoken in the audio, specify None to perform language detection") | |
| parser.add_argument("--vad", type=str, default="none", choices=["none", "silero-vad", "silero-vad-skip-gaps", "silero-vad-expand-into-gaps", "periodic-vad"], help="The voice activity detection algorithm to use") | |
| parser.add_argument("--vad_merge_window", type=optional_float, default=5, help="The window size (in seconds) to merge voice segments") | |
| parser.add_argument("--vad_max_merge_size", type=optional_float, default=30, help="The maximum size (in seconds) of a voice segment") | |
| parser.add_argument("--vad_padding", type=optional_float, default=1, help="The padding (in seconds) to add to each voice segment") | |
| parser.add_argument("--vad_prompt_window", type=optional_float, default=3, help="The window size of the prompt to pass to Whisper") | |
| parser.add_argument("--temperature", type=float, default=0, help="temperature to use for sampling") | |
| parser.add_argument("--best_of", type=optional_int, default=5, help="number of candidates when sampling with non-zero temperature") | |
| parser.add_argument("--beam_size", type=optional_int, default=5, help="number of beams in beam search, only applicable when temperature is zero") | |
| 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") | |
| 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") | |
| 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") | |
| parser.add_argument("--initial_prompt", type=str, default=None, help="optional text to provide as a prompt for the first window.") | |
| 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") | |
| parser.add_argument("--fp16", type=str2bool, default=True, help="whether to perform inference in fp16; True by default") | |
| 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") | |
| 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") | |
| 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") | |
| 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") | |
| args = parser.parse_args().__dict__ | |
| model_name: str = args.pop("model") | |
| model_dir: str = args.pop("model_dir") | |
| output_dir: str = args.pop("output_dir") | |
| device: str = args.pop("device") | |
| os.makedirs(output_dir, exist_ok=True) | |
| if model_name.endswith(".en") and args["language"] not in {"en", "English"}: | |
| warnings.warn(f"{model_name} is an English-only model but receipted '{args['language']}'; using English instead.") | |
| args["language"] = "en" | |
| temperature = args.pop("temperature") | |
| temperature_increment_on_fallback = args.pop("temperature_increment_on_fallback") | |
| if temperature_increment_on_fallback is not None: | |
| temperature = tuple(np.arange(temperature, 1.0 + 1e-6, temperature_increment_on_fallback)) | |
| else: | |
| temperature = [temperature] | |
| vad = args.pop("vad") | |
| vad_merge_window = args.pop("vad_merge_window") | |
| vad_max_merge_size = args.pop("vad_max_merge_size") | |
| vad_padding = args.pop("vad_padding") | |
| vad_prompt_window = args.pop("vad_prompt_window") | |
| model = whisper.load_model(model_name, device=device, download_root=model_dir) | |
| transcriber = WhisperTranscriber(deleteUploadedFiles=False) | |
| for audio_path in args.pop("audio"): | |
| sources = [] | |
| # Detect URL and download the audio | |
| if (uri_validator(audio_path)): | |
| # Download from YouTube/URL directly | |
| for source_path in download_url(audio_path, maxDuration=-1, destinationDirectory=output_dir, playlistItems=None): | |
| source_name = os.path.basename(source_path) | |
| sources.append({ "path": source_path, "name": source_name }) | |
| else: | |
| sources.append({ "path": audio_path, "name": os.path.basename(audio_path) }) | |
| for source in sources: | |
| source_path = source["path"] | |
| source_name = source["name"] | |
| result = transcriber.transcribe_file(model, source_path, temperature=temperature, | |
| vad=vad, vadMergeWindow=vad_merge_window, vadMaxMergeSize=vad_max_merge_size, | |
| vadPadding=vad_padding, vadPromptWindow=vad_prompt_window, **args) | |
| transcriber.write_result(result, source_name, output_dir) | |
| transcriber.clear_cache() | |
| def uri_validator(x): | |
| try: | |
| result = urlparse(x) | |
| return all([result.scheme, result.netloc]) | |
| except: | |
| return False | |
| if __name__ == '__main__': | |
| cli() |