run_demo_ct2.py

#! /usr/bin/env python
# coding=utf-8
# Copyright 2022 Bofeng Huang

import datetime
import logging
import os
import re
import warnings

import gradio as gr
import pandas as pd
import psutil
import pytube as pt
import torch
# import whisper
from faster_whisper import WhisperModel
from huggingface_hub import hf_hub_download, snapshot_download
from transformers.utils.logging import disable_progress_bar

import nltk
nltk.download("punkt")

from nltk.tokenize import sent_tokenize

warnings.filterwarnings("ignore")
disable_progress_bar()

# DEFAULT_MODEL_NAME = "bofenghuang/whisper-large-v2-cv11-french"
DEFAULT_MODEL_NAME = "bofenghuang/whisper-large-v3-french"
# CHECKPOINT_FILENAME = "checkpoint_openai.pt"

GEN_KWARGS = {
    "task": "transcribe",
    "language": "fr",
    # "without_timestamps": True,
    # decode options
    # "beam_size": 1,
    # "patience": 2,
    # disable fallback
    # "compression_ratio_threshold": None,
    # "logprob_threshold": None,
    # vad threshold
    # "no_speech_threshold": None,
    # "condition_on_previous_text": False,  # todo: only for distilled version
    "vad_filter": True,
}

logging.basicConfig(
    format="%(asctime)s [%(levelname)s] [%(name)s] %(message)s",
    datefmt="%Y-%m-%dT%H:%M:%SZ",
)
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)

# device = 0 if torch.cuda.is_available() else "cpu"
# device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
device = "cuda" if torch.cuda.is_available() else "cpu"
logger.info(f"Model will be loaded on device `{device}`")

cached_models = {}


def format_timestamp(seconds):
    return str(datetime.timedelta(seconds=round(seconds)))


def _return_yt_html_embed(yt_url):
    video_id = yt_url.split("?v=")[-1]
    HTML_str = (
        f'<center> <iframe width="500" height="320" src="https://www.youtube.com/embed/{video_id}"> </iframe>' " </center>"
    )
    return HTML_str


def download_audio_from_youtube(yt_url, downloaded_filename="audio.wav"):
    yt = pt.YouTube(yt_url)
    stream = yt.streams.filter(only_audio=True)[0]
    # stream.download(filename="audio.mp3")
    stream.download(filename=downloaded_filename)
    return downloaded_filename


def download_video_from_youtube(yt_url, downloaded_filename="video.mp4"):
    yt = pt.YouTube(yt_url)
    stream = yt.streams.filter(progressive=True, file_extension="mp4").order_by("resolution").desc().first()
    stream.download(filename=downloaded_filename)
    logger.info(f"Download YouTube video from {yt_url}")
    return downloaded_filename


def _print_memory_info():
    memory = psutil.virtual_memory()
    logger.info(
        f"Memory info - Free: {memory.available / (1024 ** 3):.2f} Gb, used: {memory.percent}%, total: {memory.total / (1024 ** 3):.2f} Gb"
    )


def _print_cuda_memory_info():
    used_mem, tot_mem = torch.cuda.mem_get_info()
    logger.info(
        f"CUDA memory info - Free: {used_mem / 1024 ** 3:.2f} Gb, used: {(tot_mem - used_mem) / 1024 ** 3:.2f} Gb, total: {tot_mem / 1024 ** 3:.2f} Gb"
    )


def print_memory_info():
    _print_memory_info()
    _print_cuda_memory_info()


def maybe_load_cached_pipeline(model_name):
    model = cached_models.get(model_name)
    if model is None:
        # downloaded_model_path = hf_hub_download(repo_id=model_name, filename=CHECKPOINT_FILENAME)
        # downloaded_model_path = snapshot_download(repo_id=model_name)
        downloaded_model_path = snapshot_download(repo_id=model_name, allow_patterns="ctranslate2/*")
        downloaded_model_path = f"{downloaded_model_path}/ctranslate2"

        # model = whisper.load_model(downloaded_model_path, device=device)
        model = WhisperModel(downloaded_model_path, device=device, compute_type="float16")
        logger.info(f"`{model_name}` has been loaded on device `{device}`")

        print_memory_info()

        cached_models[model_name] = model
    return model


def infer(model, filename, with_timestamps, return_df=False):
    if with_timestamps:
        # model_outputs = model.transcribe(filename, **GEN_KWARGS)
        model_outputs, _ = model.transcribe(filename, **GEN_KWARGS)
        model_outputs = [segment._asdict() for segment in model_outputs]
        if return_df:
            # model_outputs_df = pd.DataFrame(model_outputs["segments"])
            model_outputs_df = pd.DataFrame(model_outputs)
            # print(model_outputs)
            # print(model_outputs_df)
            # print(model_outputs_df.info(verbose=True))
            model_outputs_df = model_outputs_df[["start", "end", "text"]]
            model_outputs_df["start"] = model_outputs_df["start"].map(format_timestamp)
            model_outputs_df["end"] = model_outputs_df["end"].map(format_timestamp)
            model_outputs_df["text"] = model_outputs_df["text"].str.strip()
            return model_outputs_df
        else:
            return "\n\n".join(
                [
                    f'Segment {segment["id"]+1} from {segment["start"]:.2f}s to {segment["end"]:.2f}s:\n{segment["text"].strip()}'
                    # for segment in model_outputs["segments"]
                    for segment in model_outputs
                ]
            )
    else:
        # text = model.transcribe(filename, without_timestamps=True, **GEN_KWARGS)["text"]
        model_outputs, _ = model.transcribe(filename, without_timestamps=True, **GEN_KWARGS)
        text = " ".join([segment.text for segment in model_outputs])
        if return_df:
            return pd.DataFrame({"text": sent_tokenize(text)})
        else:
            return text


def transcribe(microphone, file_upload, with_timestamps, model_name=DEFAULT_MODEL_NAME):
    warn_output = ""
    if (microphone is not None) and (file_upload is not None):
        warn_output = (
            "WARNING: You've uploaded an audio file and used the microphone. "
            "The recorded file from the microphone will be used and the uploaded audio will be discarded.\n"
        )

    elif (microphone is None) and (file_upload is None):
        return "ERROR: You have to either use the microphone or upload an audio file"

    file = microphone if microphone is not None else file_upload

    model = maybe_load_cached_pipeline(model_name)
    # text = model.transcribe(file, **GEN_KWARGS)["text"]
    # text = infer(model, file, with_timestamps)
    text = infer(model, file, with_timestamps, return_df=True)

    logger.info(f'Transcription by `{model_name}`:\n{text.to_json(orient="index", force_ascii=False, indent=2)}\n')

    # return warn_output + text
    return text


def yt_transcribe(yt_url, with_timestamps, model_name=DEFAULT_MODEL_NAME):
    # html_embed_str = _return_yt_html_embed(yt_url)
    audio_file_path = download_audio_from_youtube(yt_url)

    model = maybe_load_cached_pipeline(model_name)
    # text = model.transcribe("audio.mp3", **GEN_KWARGS)["text"]
    # text = infer(model, audio_file_path, with_timestamps)
    text = infer(model, audio_file_path, with_timestamps, return_df=True)

    logger.info(f'Transcription by `{model_name}` of "{yt_url}":\n{text.to_json(orient="index", force_ascii=False, indent=2)}\n')

    # return html_embed_str, text
    return text


def video_transcribe(video_file_path, with_timestamps, model_name=DEFAULT_MODEL_NAME):
    if video_file_path is None:
        raise ValueError("Failed to transcribe video as no video_file_path has been defined")

    audio_file_path = re.sub(r"\.mp4$", ".wav", video_file_path)
    os.system(f'ffmpeg -hide_banner -loglevel error -y -i "{video_file_path}" -ar 16000 -ac 1 -c:a pcm_s16le "{audio_file_path}"')

    model = maybe_load_cached_pipeline(model_name)
    # text = model.transcribe("audio.mp3", **GEN_KWARGS)["text"]
    text = infer(model, audio_file_path, with_timestamps, return_df=True)

    logger.info(f'Transcription by `{model_name}`:\n{text.to_json(orient="index", force_ascii=False, indent=2)}\n')

    return text


# load default model
maybe_load_cached_pipeline(DEFAULT_MODEL_NAME)

# default_text_output_df = pd.DataFrame(columns=["start", "end", "text"])
default_text_output_df = pd.DataFrame(columns=["text"])

with gr.Blocks() as demo:

    with gr.Tab("Transcribe Audio"):
        gr.Markdown(
            f"""
              <div>
              <h1 style='text-align: center'>Whisper French Demo: Transcribe Audio</h1>
              </div>
              Transcribe long-form microphone or audio inputs!

              Demo uses the fine-tuned checkpoint: <a href='https://huggingface.co/{DEFAULT_MODEL_NAME}' target='_blank'><b>{DEFAULT_MODEL_NAME}</b></a> to transcribe audio files of arbitrary length.

              Efficient inference is supported by [faster-whisper](https://github.com/guillaumekln/faster-whisper) and [CTranslate2](https://github.com/OpenNMT/CTranslate2).
          """
        )

        microphone_input = gr.Audio(sources="microphone", type="filepath", label="Record")
        upload_input = gr.Audio(sources="upload", type="filepath", label="Upload File")
        with_timestamps_input = gr.Checkbox(label="With timestamps?")

        microphone_transcribe_btn = gr.Button("Transcribe Audio")

        # gr.Markdown('''
        #     Here you will get generated transcrit.
        # ''')

        # microphone_text_output = gr.outputs.Textbox(label="Transcription")
        text_output_df2 = gr.DataFrame(
            value=default_text_output_df,
            label="Transcription",
            wrap=True,
        )

        microphone_transcribe_btn.click(
            transcribe, inputs=[microphone_input, upload_input, with_timestamps_input], outputs=text_output_df2
        )

    # with gr.Tab("Transcribe YouTube"):
    #     gr.Markdown(
    #         f"""
    #           <div>
    #           <h1 style='text-align: center'>Whisper French Demo: Transcribe YouTube</h1>
    #           </div>
    #           Transcribe long-form YouTube videos!

    #           Demo uses the fine-tuned checkpoint: <a href='https://huggingface.co/{DEFAULT_MODEL_NAME}' target='_blank'><b>{DEFAULT_MODEL_NAME}</b></a> to transcribe video files of arbitrary length.
    #       """
    #     )

    #     yt_link_input2 = gr.inputs.Textbox(lines=1, placeholder="Paste the URL to a YouTube video here", label="YouTube URL")
    #     with_timestamps_input2 = gr.Checkbox(label="With timestamps?", value=True)

    #     yt_transcribe_btn = gr.Button("Transcribe YouTube")

    #     # yt_text_output = gr.outputs.Textbox(label="Transcription")
    #     text_output_df3 = gr.DataFrame(
    #         value=default_text_output_df,
    #         label="Transcription",
    #         row_count=(0, "dynamic"),
    #         max_rows=10,
    #         wrap=True,
    #         overflow_row_behaviour="paginate",
    #     )
    #     # yt_html_output = gr.outputs.HTML(label="YouTube Page")

    #     yt_transcribe_btn.click(yt_transcribe, inputs=[yt_link_input2, with_timestamps_input2], outputs=[text_output_df3])

    with gr.Tab("Transcribe Video"):
        gr.Markdown(
            f"""
              <div>
              <h1 style='text-align: center'>Whisper French Demo: Transcribe Video</h1>
              </div>
              Transcribe long-form YouTube videos or uploaded video inputs!

              Demo uses the fine-tuned checkpoint: <a href='https://huggingface.co/{DEFAULT_MODEL_NAME}' target='_blank'><b>{DEFAULT_MODEL_NAME}</b></a> to transcribe video files of arbitrary length.

              Efficient inference is supported by [faster-whisper](https://github.com/guillaumekln/faster-whisper) and [CTranslate2](https://github.com/OpenNMT/CTranslate2).
          """
        )

        yt_link_input = gr.Textbox(lines=1, placeholder="Paste the URL to a YouTube video here", label="YouTube URL")
        download_youtube_btn = gr.Button("Download Youtube video")
        downloaded_video_output = gr.Video(label="Video file", mirror_webcam=False)
        download_youtube_btn.click(download_video_from_youtube, inputs=[yt_link_input], outputs=[downloaded_video_output])

        with_timestamps_input3 = gr.Checkbox(label="With timestamps?", value=True)
        video_transcribe_btn = gr.Button("Transcribe video")
        text_output_df = gr.DataFrame(
            value=default_text_output_df,
            label="Transcription",
            wrap=True,
        )

        video_transcribe_btn.click(video_transcribe, inputs=[downloaded_video_output, with_timestamps_input3], outputs=[text_output_df])

# demo.queue(max_size=10).launch(server_name="0.0.0.0", debug=True, ssl_certfile="/home/bhuang/tools/cert.pem", ssl_keyfile="/home/bhuang/tools/key.pem", ssl_verify=False)
demo.queue(max_size=10).launch()