Get FPS of a video using Python, OpenCV and Ffmpeg.

get_video_fps.py

import cv2
import ffmpeg


def get_fps_fast(video_path):
    # using only opencv-python package, fast but can be inaccurate
    cap = cv2.VideoCapture(video_path)
    if not cap.isOpened():
        raise Exception(f"Cannot open {video_path}")
    fps = cap.get(cv2.CAP_PROP_FPS)
    cap.release()
    return fps


def get_fps_accurate(video_path):
    # using opencv-python and ffmpeg-python packages, slow but more accurate
    cap = cv2.VideoCapture(video_path)
    if not cap.isOpened():
        raise Exception(f"Cannot open {video_path}")
    metadata = ffmpeg.probe(video_path)
    duration = metadata["format"]["duration"]
    duration = float(duration)
    if duration == 0:
        raise ZeroDivisionError("Video duration is zero!")
    frames = 0
    while True:
        ret, _ = cap.read()
        if not ret:
            break
        frames += 1
    cap.release()
    return frames / duration