GitHub
github.com › opencv › opencv › issues › 24000
.get(cv2.CAP_PROP_FPS) returns incorrect FPS · Issue #24000 · opencv/opencv
July 17, 2023 - System Information OpenCV Python version: 4.8.074 OS: Microsoft Windows 10 Enterprise , version 10.0.19045 Python version: 3.11.4 Detailed description This mp4 video (attached below) has a length of 24:22mins, and a frame rate of 14.9 fp...
GitHub
github.com › opencv › opencv-python › issues › 281
set property of cv2.VideoCapture is returning false for cv2.CAP_PROP_FPS · Issue #281 · opencv/opencv-python
January 6, 2020 - import cv2 video_url = "https://www.sample-videos.com/video123/mp4/720/big_buck_bunny_720p_5mb.mp4" capture = cv2.VideoCapture(video_url) fps = capture.get(cv2.CAP_PROP_FPS) capture.set(cv2.CAP_PROP_FPS, 10) operating system ubuntu 19.04 · architecture 64 bit · opencv-python version 4.1.2.30 ·
Author: opencv
GitHub
github.com › opencv › opencv › issues › 26250
Windows get camera cv2.CAP_PROP_FPS incorrect value for low fps. · Issue #26250 · opencv/opencv
October 4, 2024 - from datetime import datetime,timedelta import cv2 cap = cv2.VideoCapture(0) cap.grab() # Remove this line to get correct real FPS cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640) cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480) cap.set(cv2.CAP_PROP_BUFFERSIZE, 1) cap.set(cv2.CAP_PROP_FPS, 2) # Set low FPS print("Real fps: ", cap.get(cv2.CAP_PROP_FPS)) for i in range(100): cv2.waitKey(1) cap.grab() # Grab a frame now = datetime.now() print(f'{now.strftime("%M:%S")} ') Typical output: Click to expand · python.exe : [ WARN:0@3.110] global cap_msmf.cpp:929 CvCapture_MSMF::initStream Failed to select stream 0 AB@>:
GitHub
github.com › opencv › opencv › blob › master › samples › python › video_v4l2.py
opencv/samples/python/video_v4l2.py at master · opencv/opencv
import cv2 as cv · · def main(): · def decode_fourcc(v): v = int(v) return "".join([chr((v >> 8 * i) & 0xFF) for i in range(4)]) · font = cv.FONT_HERSHEY_SIMPLEX · color = (0, 255, 0) · cap = cv.VideoCapture(0) cap.set(cv.CAP_PROP_AUTOFOCUS, 0) # Known bug: https://github.com/opencv/opencv/pull/5474 · · cv.namedWindow("Video") · convert_rgb = True · fps = int(cap.get(cv.CAP_PROP_FPS)) focus = int(min(cap.get(cv.CAP_PROP_FOCUS) * 100, 2**31-1)) # ceil focus to C_LONG as Python3 int can go to +inf ·
Author: opencv
GitHub
gist.github.com › anujonthemove › e879ef6e2bd3f0ee1743c4c48ef779c1
A handy list of VideoCapture object parameters taken from official OpenCV docs. · GitHub
""" # List of properties to demonstrate properties = { "CAP_PROP_POS_MSEC": cv2.CAP_PROP_POS_MSEC, "CAP_PROP_POS_FRAMES": cv2.CAP_PROP_POS_FRAMES, "CAP_PROP_POS_AVI_RATIO": cv2.CAP_PROP_POS_AVI_RATIO, "CAP_PROP_FRAME_WIDTH": cv2.CAP_PROP_FRAME_WIDTH, "CAP_PROP_FRAME_HEIGHT": cv2.CAP_PROP_FRAME_HEIGHT, "CAP_PROP_FPS": cv2.CAP_PROP_FPS, "CAP_PROP_FOURCC": cv2.CAP_PROP_FOURCC, "CAP_PROP_FRAME_COUNT": cv2.CAP_PROP_FRAME_COUNT, "CAP_PROP_BRIGHTNESS": cv2.CAP_PROP_BRIGHTNESS, "CAP_PROP_CONTRAST": cv2.CAP_PROP_CONTRAST, "CAP_PROP_SATURATION": cv2.CAP_PROP_SATURATION, "CAP_PROP_HUE": cv2.CAP_PROP_HUE,
GitHub
gist.github.com › barisx › 34f58b4010b0d86b3afe577f458e4788
Detect video fps with OpenCV - Python · GitHub
Detect video fps with OpenCV - Python. GitHub Gist: instantly share code, notes, and snippets.
GitHub
github.com › astropy › astropy › issues › 9824
Too fast video capturing OpenCV2 python · Issue #9824 · astropy/astropy
December 30, 2019 - import numpy as np import cv2 import time import os import random import sys width = 864 height = 640 video_codec = cv2.VideoWriter_fourcc("D", "I", "V", "X") name = random.randint(0, 1000) if os.path.isdir(str(name)) is False: name = random.randint(0, 1000) name = str(name) print(name) name = os.path.join(os.getcwd(), str(name)) print("ALl logs saved in dir:", name) os.mkdir(name) cap = cv2.VideoCapture(0) fps = cap.get(cv2.CAP_PROP_FPS) ret = cap.set(3, 864) ret = cap.set(4, 480) cur_dir = os.path.dirname(os.path.abspath(sys.argv[0])) start = time.time() video_file_count = 1 video_file = os.
Author: astropy
Daniels Coding Blog
danielcorcoranssql.wordpress.com › 2019 › 04 › 10 › cv2-extracting-images-from-videos
Python : Extracting images from videos with cv2 – Daniels Coding Blog
April 11, 2019 - import cv2 video_path = './sample.mp4' capture = cv2.VideoCapture(video_path) (major_ver, minor_ver, subminor_ver) = (cv2.__version__.split('.')) if int(major_ver) < 3: fps = capture.get(cv2.cv.CV_CAP_PROP_FPS) print("Frames per second using video.get(cv2.cv.CV_CAP_PROP_FPS): {0}".format(fps)) else: fps = capture.get(cv2.CAP_PROP_FPS) print("Frames per second using video.get(cv2.CAP_PROP_FPS) : {0}".format(fps)) capture.release() To run it use · python3 get-fps.py ·
GitHub
gist.github.com › yoshi4869 › 30a9cf10dd600d2a197c38901001245e
撮影画像のFPSを表示しつつ,定期的に画像を保存する
撮影画像のFPSを表示しつつ,定期的に画像を保存する. GitHub Gist: instantly share code, notes, and snippets.
ProgramCreek
programcreek.com › python › example › 89372 › cv2.CAP_PROP_FPS
Python Examples of cv2.CAP_PROP_FPS
def clahe(filename): os.chdir(os.path.dirname(filename)) print('Applying CLAHE, this might take awhile...') currentVideo = os.path.basename(filename) fileName, fileEnding = currentVideo.split('.',2) saveName = str('CLAHE_') + str(fileName) + str('.avi') cap = cv2.VideoCapture(currentVideo) imageWidth = int(cap.get(3)) imageHeight = int(cap.get(4)) fps = cap.get(cv2.CAP_PROP_FPS) fourcc = cv2.VideoWriter_fourcc(*'XVID') out = cv2.VideoWriter(saveName, fourcc, fps, (imageWidth, imageHeight), 0) try: while True: ret, image = cap.read() if ret == True: im = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
Raspberry Pi Forums
forums.raspberrypi.com › board index › programming › python
Cannot get frame from cv2 - Raspberry Pi Forums
June 17, 2023 - #!/usr/bin/python3 import sys import cv2 import mediapipe as mp import math import time import os os.system('clear') cap = cv2.VideoCapture(0) print(type(cap)) print(cap.isOpened()) print(int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))) res, img = cap.read() cv2.imwrite("/home/pi/test.png", img) cap.release() cv2.destroyAllWindows() I get the output
OpenCV Q&A Forum
answers.opencv.org › question › 214375 › changing-the-fps-of-a-video
changing the fps of a video? - OpenCV Q&A Forum
The correct flag is cv2.CAP_PROP_FPS and change it to so when setting your cap.