I am recording with openCV
, at first the recording goes well, but I want that when I hit the spacebar, everything that is recorded then is saved on the device (this is where it gets damaged). I get the following errors:
OpenCV: FFMPEG: tag 0x4745504d/'MPEG' is not supported with codec id 2 and format 'mp4 / MP4 (MPEG-4 Part 14)' OpenCV: FFMPEG: fallback to use tag 0x7634706d/'mp4v'
and then the window freezes.
this is the code:
def record_video():
capture = cv2.VideoCapture(0)
while capture.isOpened():
res, video = capture.read()
cv2.imshow("Recording Window", video)
if cv2.waitKey(1) == 27: #ESC key to stop recording
break
elif cv2.waitKey(1) == 32: #SPACE key to start recording and save it to the device
width = int(capture.get (cv2.CAP_PROP_FRAME_WIDTH))
height = int(catch.get (cv2.CAP_PROP_FRAME_HEIGHT))
code = cv2.VideoWriter_fourcc (* 'MPEG') #format
recorder = cv2.VideoWriter("video.mp4",code,20,(width, height))
while True:
result, video_record = capture.read()
recorder.write(video_record)
if cv2.waitKey(1) & 0xFF == ord("q"): #q key to stop recording
break
recorder.release()
capture.release()
cv2.destroyAllWindows()
capture.release()
cv2.destroyAllWindows()
For.mp4 video creation, you need to initialize as *mp4v
code = cv2.VideoWriter_fourcc(*'mp4v') #format
But if the above initialization won't work for you, then you need to compile ffmpeg
with opencv
. Other option is using Motion-JPEG video format, which is much lower quality compared to .mp4
code = cv2.VideoWriter_fourcc(*'MJPG') #format
recorder = cv2.VideoWriter("video.avi",code,20,(width, height))
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