Fixing Python OpenCV RTSP Buffer Lag & Frame Accumulation
Prevent OpenCV from falling multiple seconds behind live camera feeds during slow inference loops.
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#1Setting OpenCV Environment Flags
Export FFMPEG capture options prior to initializing VideoCapture:
import os
import cv2
os.environ["OPENCV_FFMPEG_CAPTURE_OPTIONS"] = "rtsp_transport;tcp|fflags;nobuffer|max_delay;500000"
cap = cv2.VideoCapture("rtsp://rtsplink.com/live/test?token=demo", cv2.CAP_FFMPEG)
cap.set(cv2.CAP_PROP_BUFFERSIZE, 1)Ready to test your live RTSP video stream?
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