app.py

import streamlit as st
from annotator.utils import *
st.set_page_config(layout='wide')
from fastcore.xtras import globtastic
from pathlib import Path
import subprocess

SRT_PATH = Path('srt')
if not SRT_PATH.exists(): SRT_PATH.mkdir(exist_ok=True)

AUDIO_PATH = Path('./audio')
if not AUDIO_PATH.exists(): AUDIO_PATH.mkdir(exist_ok=True)


def make_sidebar():
    with st.sidebar:
        st.markdown('## yt-video-annotator')
        st.write('Link to the GitHub repo')

@st.cache(allow_output_mutation=True)
def caption_from_url(url):
    audio_src = get_audio(url)
    v = get_v_from_url(url)
    audio_src = globtastic(AUDIO_PATH, file_glob='*.mp3', file_re=v)[0]
    result = annotate(audio_src)
    df = df_from_result(result)
    return audio_src, df




def main():
    url, name = None, None
    make_sidebar()
    col1, col2 = st.columns([1.2, 1])
    with col1:
        url = st.text_input('Enter URL for the YT video')
        st.video(url)

    with col2:
        default_opt = 'Search for words'
        opt = st.radio('What do you wish to do?', [default_opt, 'Generate subtitles for the entire video'])
        if opt == default_opt:
            st.markdown('### Search for words in the video')
            words = st.text_input('Enter words separated by a comma')
            words = words.split(',')

            if st.button('Get Timestamps'):
                audio_src, df = caption_from_url(url)
                times = find_word_timestamp(df, *words)
                times = np.asarray(times).reshape(len(words), -1)
                # st.write(times)
                for i, word in enumerate(words):
                    st.write(f"{word} is said on {times[i].flatten()} timestamp")

        else:
            if st.button('Generate SRT'):
                audio_src, df = caption_from_url(url)
                name = Path(audio_src).stem
                s = generate_srt(df)
                with working_directory(SRT_PATH):
                    write_srt(s, name)

        if name is not None:
            with working_directory(SRT_PATH):
                key = get_v_from_url(url)
                srt = globtastic('.', file_glob='*.srt', file_re=key)[0]
                with open(srt) as f:
                    st.download_button('Download SRT', f, file_name=f'{name}.srt')

    # subprocess.run(['rm', '-rf', 'audio'])
    # subprocess.run(['rm', '-rf', 'srt'])


if __name__ == "__main__":
    main()