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| import os | |
| import time | |
| import numpy as np | |
| from typing import BinaryIO, Union, Tuple, List | |
| import torch | |
| from transformers import pipeline | |
| from transformers.utils import is_flash_attn_2_available | |
| import gradio as gr | |
| import wget | |
| from modules.whisper_parameter import * | |
| from modules.whisper_base import WhisperBase | |
| class InsanelyFastWhisperInference(WhisperBase): | |
| def __init__(self): | |
| super().__init__( | |
| model_dir=os.path.join("models", "Whisper", "insanely_fast_whisper") | |
| ) | |
| self.available_compute_types = ["float16"] | |
| def transcribe(self, | |
| audio: Union[str, np.ndarray, torch.Tensor], | |
| progress: gr.Progress, | |
| *whisper_params, | |
| ) -> Tuple[List[dict], float]: | |
| """ | |
| transcribe method for faster-whisper. | |
| Parameters | |
| ---------- | |
| audio: Union[str, BinaryIO, np.ndarray] | |
| Audio path or file binary or Audio numpy array | |
| progress: gr.Progress | |
| Indicator to show progress directly in gradio. | |
| *whisper_params: tuple | |
| Gradio components related to Whisper. see whisper_data_class.py for details. | |
| Returns | |
| ---------- | |
| segments_result: List[dict] | |
| list of dicts that includes start, end timestamps and transcribed text | |
| elapsed_time: float | |
| elapsed time for transcription | |
| """ | |
| start_time = time.time() | |
| params = WhisperValues(*whisper_params) | |
| if params.model_size != self.current_model_size or self.model is None or self.current_compute_type != params.compute_type: | |
| self.update_model(params.model_size, params.compute_type, progress) | |
| if params.lang == "Automatic Detection": | |
| params.lang = None | |
| progress(0, desc="Transcribing...") | |
| segments = self.model( | |
| inputs=audio, | |
| chunk_length_s=30, | |
| batch_size=24, | |
| return_timestamps=True, | |
| ) | |
| segments_result = self.format_result( | |
| transcribed_result=segments, | |
| ) | |
| elapsed_time = time.time() - start_time | |
| return segments_result, elapsed_time | |
| def update_model(self, | |
| model_size: str, | |
| compute_type: str, | |
| progress: gr.Progress, | |
| ): | |
| """ | |
| Update current model setting | |
| Parameters | |
| ---------- | |
| model_size: str | |
| Size of whisper model | |
| compute_type: str | |
| Compute type for transcription. | |
| see more info : https://opennmt.net/CTranslate2/quantization.html | |
| progress: gr.Progress | |
| Indicator to show progress directly in gradio. | |
| """ | |
| progress(0, desc="Initializing Model..") | |
| model_path = os.path.join(self.model_dir, model_size) | |
| if not os.path.isdir(model_path) or not os.listdir(model_path): | |
| self.download_model( | |
| model_size=model_size, | |
| download_root=model_path, | |
| progress=progress | |
| ) | |
| self.current_compute_type = compute_type | |
| self.current_model_size = model_size | |
| self.model = pipeline( | |
| "automatic-speech-recognition", | |
| model=os.path.join(self.model_dir, model_size), | |
| torch_dtype=self.current_compute_type, | |
| device=self.device, | |
| model_kwargs={"attn_implementation": "flash_attention_2"} if is_flash_attn_2_available() else {"attn_implementation": "sdpa"}, | |
| ) | |
| def format_result( | |
| transcribed_result: dict | |
| ) -> List[dict]: | |
| """ | |
| Format the transcription result of insanely_fast_whisper as the same with other implementation. | |
| Parameters | |
| ---------- | |
| transcribed_result: dict | |
| Transcription result of the insanely_fast_whisper | |
| progress: gr.Progress | |
| Indicator to show progress directly in gradio. | |
| Returns | |
| ---------- | |
| result: List[dict] | |
| Formatted result as the same with other implementation | |
| """ | |
| result = transcribed_result["chunks"] | |
| for item in result: | |
| start, end = item["timestamp"][0], item["timestamp"][1] | |
| item["start"] = start | |
| item["end"] = end | |
| return result | |
| def download_model( | |
| model_size: str, | |
| download_root: str, | |
| progress: gr.Progress | |
| ): | |
| progress(0, 'Initializing model..') | |
| print(f'Downloading {model_size} to "{download_root}"....') | |
| os.makedirs(download_root, exist_ok=True) | |
| download_list = [ | |
| "model.safetensors", | |
| "config.json", | |
| "generation_config.json", | |
| "preprocessor_config.json", | |
| "tokenizer.json", | |
| "tokenizer_config.json", | |
| "added_tokens.json", | |
| "special_tokens_map.json", | |
| "vocab.json", | |
| ] | |
| download_host = f"https://huggingface.co/openai/whisper-{model_size}/resolve/main" | |
| for item in download_list: | |
| wget.download( | |
| download_host+"/"+item, | |
| download_root | |
| ) | |