import pysrt
import pandas as pd


def parse_srt_to_df(filepath: str, encoding: str = "cp1251") -> pd.DataFrame:
    subs = pysrt.open(filepath, encoding=encoding)
    rows = []

    for sub in subs:
        text = sub.text.replace('\n', ' ').strip()
        if text:
            rows.append({
                "start": sub.start.to_time(),
                "end": sub.end.to_time(),
                "text": text
            })

    return pd.DataFrame(rows)