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import os |
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import torch |
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import gradio as gr |
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from abc import ABC, abstractmethod |
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import gc |
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from typing import List |
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from datetime import datetime |
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import modules.translation.nllb_inference as nllb |
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from modules.utils.subtitle_manager import * |
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from modules.utils.files_manager import load_yaml, save_yaml |
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from modules.utils.paths import DEFAULT_PARAMETERS_CONFIG_PATH, NLLB_MODELS_DIR, TRANSLATION_OUTPUT_DIR |
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class TranslationBase(ABC): |
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def __init__(self, |
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model_dir: str = NLLB_MODELS_DIR, |
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output_dir: str = TRANSLATION_OUTPUT_DIR |
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): |
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super().__init__() |
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self.model = None |
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self.model_dir = model_dir |
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self.output_dir = output_dir |
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os.makedirs(self.model_dir, exist_ok=True) |
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os.makedirs(self.output_dir, exist_ok=True) |
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self.current_model_size = None |
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self.device = self.get_device() |
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@abstractmethod |
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def translate(self, |
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text: str, |
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max_length: int |
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): |
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pass |
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@abstractmethod |
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def update_model(self, |
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model_size: str, |
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src_lang: str, |
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tgt_lang: str, |
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progress: gr.Progress = gr.Progress() |
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): |
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pass |
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def translate_file(self, |
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fileobjs: list, |
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model_size: str, |
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src_lang: str, |
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tgt_lang: str, |
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max_length: int = 200, |
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add_timestamp: bool = True, |
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progress=gr.Progress()) -> list: |
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""" |
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Translate subtitle file from source language to target language |
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Parameters |
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---------- |
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fileobjs: list |
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List of files to transcribe from gr.Files() |
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model_size: str |
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Whisper model size from gr.Dropdown() |
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src_lang: str |
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Source language of the file to translate from gr.Dropdown() |
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tgt_lang: str |
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Target language of the file to translate from gr.Dropdown() |
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max_length: int |
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Max length per line to translate |
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add_timestamp: bool |
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Boolean value from gr.Checkbox() that determines whether to add a timestamp at the end of the filename. |
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progress: gr.Progress |
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Indicator to show progress directly in gradio. |
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I use a forked version of whisper for this. To see more info : https://github.com/jhj0517/jhj0517-whisper/tree/add-progress-callback |
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Returns |
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---------- |
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A List of |
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String to return to gr.Textbox() |
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Files to return to gr.Files() |
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""" |
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try: |
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if fileobjs and isinstance(fileobjs[0], gr.utils.NamedString): |
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fileobjs = [file.name for file in fileobjs] |
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self.cache_parameters(model_size=model_size, |
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src_lang=src_lang, |
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tgt_lang=tgt_lang, |
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max_length=max_length, |
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add_timestamp=add_timestamp) |
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self.update_model(model_size=model_size, |
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src_lang=src_lang, |
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tgt_lang=tgt_lang, |
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progress=progress) |
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files_info = {} |
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for fileobj in fileobjs: |
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file_name, file_ext = os.path.splitext(os.path.basename(fileobj)) |
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writer = get_writer(file_ext, self.output_dir) |
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segments = writer.to_segments(fileobj) |
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for i, segment in enumerate(segments): |
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progress(i / len(segments), desc="Translating..") |
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translated_text = self.translate(segment.text, max_length=max_length) |
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segment.text = translated_text |
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subtitle, file_path = generate_file( |
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output_dir=self.output_dir, |
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output_file_name=file_name, |
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output_format=file_ext, |
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result=segments, |
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add_timestamp=add_timestamp |
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) |
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files_info[file_name] = {"subtitle": subtitle, "path": file_path} |
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total_result = '' |
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for file_name, info in files_info.items(): |
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total_result += '------------------------------------\n' |
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total_result += f'{file_name}\n\n' |
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total_result += f'{info["subtitle"]}' |
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gr_str = f"Done! Subtitle is in the outputs/translation folder.\n\n{total_result}" |
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output_file_paths = [item["path"] for key, item in files_info.items()] |
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return [gr_str, output_file_paths] |
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except Exception as e: |
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print(f"Error translating file: {e}") |
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raise |
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finally: |
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self.release_cuda_memory() |
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def translate_text(self, |
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input_list_dict: list, |
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model_size: str, |
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src_lang: str, |
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tgt_lang: str, |
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max_length: int = 200, |
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add_timestamp: bool = True, |
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progress=gr.Progress()) -> list: |
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""" |
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Translate text from source language to target language |
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Parameters |
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---------- |
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str_text: str |
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List[dict] to translate |
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model_size: str |
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Whisper model size from gr.Dropdown() |
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src_lang: str |
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Source language of the file to translate from gr.Dropdown() |
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tgt_lang: str |
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Target language of the file to translate from gr.Dropdown() |
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max_length: int |
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Max length per line to translate |
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add_timestamp: bool |
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Boolean value that determines whether to add a timestamp |
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progress: gr.Progress |
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Indicator to show progress directly in gradio. |
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I use a forked version of whisper for this. To see more info : https://github.com/jhj0517/jhj0517-whisper/tree/add-progress-callback |
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Returns |
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---------- |
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A List of |
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List[dict] with translation |
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""" |
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try: |
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self.cache_parameters(model_size=model_size, |
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src_lang=src_lang, |
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tgt_lang=tgt_lang, |
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max_length=max_length, |
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add_timestamp=add_timestamp) |
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self.update_model(model_size=model_size, |
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src_lang=src_lang, |
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tgt_lang=tgt_lang, |
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progress=progress) |
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total_progress = len(input_list_dict) |
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for index, dic in enumerate(input_list_dict): |
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progress(index / total_progress, desc="Translating..") |
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translated_text = self.translate(dic["text"], max_length=max_length) |
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dic["text"] = translated_text |
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return input_list_dict |
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except Exception as e: |
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print(f"Error translating file: {e}") |
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raise |
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finally: |
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self.release_cuda_memory() |
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def offload(self): |
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"""Offload the model and free up the memory""" |
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if self.model is not None: |
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del self.model |
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self.model = None |
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if self.device == "cuda": |
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self.release_cuda_memory() |
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gc.collect() |
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@staticmethod |
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def get_device(): |
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if torch.cuda.is_available(): |
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return "cuda" |
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elif torch.backends.mps.is_available(): |
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return "mps" |
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else: |
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return "cpu" |
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@staticmethod |
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def release_cuda_memory(): |
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if torch.cuda.is_available(): |
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torch.cuda.empty_cache() |
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torch.cuda.reset_max_memory_allocated() |
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@staticmethod |
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def remove_input_files(file_paths: List[str]): |
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if not file_paths: |
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return |
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for file_path in file_paths: |
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if file_path and os.path.exists(file_path): |
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os.remove(file_path) |
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@staticmethod |
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def cache_parameters(model_size: str, |
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src_lang: str, |
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tgt_lang: str, |
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max_length: int, |
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add_timestamp: bool): |
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def validate_lang(lang: str): |
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if lang in list(nllb.NLLB_AVAILABLE_LANGS.values()): |
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flipped = {value: key for key, value in nllb.NLLB_AVAILABLE_LANGS.items()} |
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return flipped[lang] |
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return lang |
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cached_params = load_yaml(DEFAULT_PARAMETERS_CONFIG_PATH) |
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cached_params["translation"]["nllb"] = { |
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"model_size": model_size, |
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"source_lang": validate_lang(src_lang), |
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"target_lang": validate_lang(tgt_lang), |
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"max_length": max_length, |
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} |
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cached_params["translation"]["add_timestamp"] = add_timestamp |
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save_yaml(cached_params, DEFAULT_PARAMETERS_CONFIG_PATH) |
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