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import base64
import gc
import io
from pathlib import Path
import gradio as gr
import numpy as np
import torch
import whisper
from pydub import AudioSegment
from modules import shared
input_hijack = {
'state': False,
'value': ["", ""]
}
# parameters which can be customized in settings.yaml of webui
params = {
'whipser_language': 'english',
'whipser_model': 'small.en',
'auto_submit': True
}
startup_device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
WHISPERMODEL = whisper.load_model(params['whipser_model'], device=startup_device)
def chat_input_modifier(text, visible_text, state):
global input_hijack
if input_hijack['state']:
input_hijack['state'] = False
return input_hijack['value']
else:
return text, visible_text
def do_stt(audio, whipser_language):
# use pydub to convert sample_rate and sample_width for whisper input
dubaudio = AudioSegment.from_file(io.BytesIO(audio))
dubaudio = dubaudio.set_channels(1)
dubaudio = dubaudio.set_frame_rate(16000)
dubaudio = dubaudio.set_sample_width(2)
# same method to get the array as openai whisper repo used from wav file
audio_np = np.frombuffer(dubaudio.raw_data, np.int16).flatten().astype(np.float32) / 32768.0
if len(whipser_language) == 0:
result = WHISPERMODEL.transcribe(audio=audio_np)
else:
result = WHISPERMODEL.transcribe(audio=audio_np, language=whipser_language)
return result["text"]
def auto_transcribe(audio, auto_submit, whipser_language):
if audio is None or audio == "":
print("Whisper received no audio data")
return "", ""
audio_bytes = base64.b64decode(audio.split(',')[1])
transcription = do_stt(audio_bytes, whipser_language)
if auto_submit:
input_hijack.update({"state": True, "value": [transcription, transcription]})
return transcription
def reload_whispermodel(whisper_model_name: str, whisper_language: str, device: str):
if len(whisper_model_name) > 0:
global WHISPERMODEL
WHISPERMODEL = None
if torch.cuda.is_available():
torch.cuda.empty_cache()
gc.collect()
if device != "none":
if device == "cuda":
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
WHISPERMODEL = whisper.load_model(whisper_model_name, device=device)
params.update({"whipser_model": whisper_model_name})
if ".en" in whisper_model_name:
whisper_language = "english"
audio_update = gr.Audio.update(interactive=True)
else:
audio_update = gr.Audio.update(interactive=False)
return [whisper_model_name, whisper_language, str(device), audio_update]
def ui():
with gr.Accordion("Whisper STT", open=True):
with gr.Row():
audio = gr.Textbox(elem_id="audio-base64", visible=False)
record_button = gr.Button("Rec.", elem_id="record-button", elem_classes="custom-button")
with gr.Row():
with gr.Accordion("Settings", open=False):
auto_submit = gr.Checkbox(label='Submit the transcribed audio automatically', value=params['auto_submit'])
device_dropd = gr.Dropdown(label='Device', value=str(startup_device), choices=["cuda", "cpu", "none"])
whisper_model_dropd = gr.Dropdown(label='Whisper Model', value=params['whipser_model'], choices=["tiny.en", "base.en", "small.en", "medium.en", "tiny", "base", "small", "medium", "large"])
whisper_language = gr.Dropdown(label='Whisper Language', value=params['whipser_language'], choices=["english", "chinese", "german", "spanish", "russian", "korean", "french", "japanese", "portuguese", "turkish", "polish", "catalan", "dutch", "arabic", "swedish", "italian", "indonesian", "hindi", "finnish", "vietnamese", "hebrew", "ukrainian", "greek", "malay", "czech", "romanian", "danish", "hungarian", "tamil", "norwegian", "thai", "urdu", "croatian", "bulgarian", "lithuanian", "latin", "maori", "malayalam", "welsh", "slovak", "telugu", "persian", "latvian", "bengali", "serbian", "azerbaijani", "slovenian", "kannada", "estonian", "macedonian", "breton", "basque", "icelandic", "armenian", "nepali", "mongolian", "bosnian", "kazakh", "albanian", "swahili", "galician", "marathi", "punjabi", "sinhala", "khmer", "shona", "yoruba", "somali", "afrikaans", "occitan", "georgian", "belarusian", "tajik", "sindhi", "gujarati", "amharic", "yiddish", "lao", "uzbek", "faroese", "haitian creole", "pashto", "turkmen", "nynorsk", "maltese", "sanskrit", "luxembourgish", "myanmar", "tibetan", "tagalog", "malagasy", "assamese", "tatar", "hawaiian", "lingala", "hausa", "bashkir", "javanese", "sundanese"])
audio.change(
auto_transcribe, [audio, auto_submit, whisper_language], [shared.gradio['textbox']]).then(
None, auto_submit, None, _js="(check) => {if (check) { document.getElementById('Generate').click() }}")
device_dropd.input(reload_whispermodel, [whisper_model_dropd, whisper_language, device_dropd], [whisper_model_dropd, whisper_language, device_dropd, audio])
whisper_model_dropd.change(reload_whispermodel, [whisper_model_dropd, whisper_language, device_dropd], [whisper_model_dropd, whisper_language, device_dropd, audio])
whisper_language.change(lambda x: params.update({"whipser_language": x}), whisper_language, None)
auto_submit.change(lambda x: params.update({"auto_submit": x}), auto_submit, None)
def custom_js():
"""
Returns custom javascript as a string. It is applied whenever the web UI is
loaded.
:return:
"""
with open(Path(__file__).parent.resolve() / "script.js", "r") as f:
return f.read()