import cv2

#cap = cv2.VideoCapture("rtspsrc location=rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov ! application/x-rtp, media=video ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! video/x-raw, format=BGRx ! videoconvert ! video/x-raw, format=BGR ! appsink", cv2.CAP_GSTREAMER)



#cmd = 'filesrc location=/home/thebears/local/source/reduced.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h264parse ! nvv4l2decoder ! nvvidconv ! appsink'

cmd = 'filesrc location=/home/thebears/local/source/full.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h265parse ! nvv4l2decoder ! nvvidconv ! appsink sync=false'
#cmd = 'filesrc location=/home/thebears/local/source/full.mp4 ! qtdemux name=demux demux.video_0 ! h265parse ! avdec_h265 ! videoconvert ! appsink'


#cmd = 'videotestsrc ! autovideosink'

cap = cv2.VideoCapture(cmd, cv2.CAP_GSTREAMER)


import time
st = time.time()
fr = 0
while True:
    good, frf = cap.read()
    fr+=1
    print(good, fr)
    if not good:
        break


et = time.time()

print(et-st, fr/(st-et))