how to open PTZ camera

[shersoni610]

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Describe your Question

Hello,

I am trying to open a PTZ Camera on a MAC machine. I get the following errors:

(deff) $ python ex4.py 12:04:20 :: Utilities :: INFO :: Running DeFFcode Version: 0.2.4 12:04:21 :: FFhelper :: DEBUG :: Final FFmpeg Path: ffmpeg 12:04:21 :: FFhelper :: DEBUG :: FFmpeg validity Test Passed! 12:04:21 :: FFhelper :: DEBUG :: Found valid FFmpeg Version: b'5.1.2' installed on this system 12:04:21 :: Sourcer :: DEBUG :: Found valid FFmpeg executable: ffmpeg. 12:04:21 :: Sourcer :: CRITICAL :: Given source 0 is a valid device index. Enforcing 'auto' demuxer. 12:04:21 :: FFhelper :: DEBUG :: Auto-Searching for valid devices... 12:04:21 :: FFhelper :: INFO :: [0]: MINRRAY-TOP 12:04:21 :: FFhelper :: INFO :: [1]: OBS Virtual Camera 12:04:21 :: FFhelper :: INFO :: [2]: Capture screen 0 12:04:21 :: FFhelper :: DEBUG :: Auto-Search completed successfully! Found 3 valid device(s). 12:04:21 :: Sourcer :: DEBUG :: Successfully configured device MINRRAY-TOP at index 0 with demuxer avfoundation. Traceback (most recent call last): File "ex4.py", line 6, in decoder = FFdecoder("0", frame_format="bgr24", verbose=True).formulate() File "/Users/Projects/CompVis/OpenCV/VideoCapture/deffcode/deff/lib/python3.8/site-packages/deffcode/ffdecoder.py", line 188, in init Sourcer( File "/User/Projects/CompVis/OpenCV/VideoCapture/deffcode/deff/lib/python3.8/site-packages/deffcode/sourcer.py", line 307, in probe_stream raise ValueError( ValueError: Invalid source with no decodable audio or video stream provided. Aborting! (deff) $

Terminal log output(Optional)

No response

Python Code(Optional)

No response

DeFFcode Version

0.2.4

Python version

3.10

Operating System version

MAC

Any other Relevant Information?

No response

[abhiTronix]

@shersoni610 I don't think, FFmpeg directly supports PTZ camera You need to setup RTSP stream to be able to open that camera and use that RTSP stream address in FFdecoder.

[shersoni610]

But why integer index fails with the software. It works fine with opencv.

[abhiTronix]

It works fine with opencv.

@shersoni610 That's because OpenCV supports backends other than FFmpeg, like Gstreamer and v4l2 etc., which supports these cameras. But DeFFcode is made entirely to work with FFmpeg backend only.

[shersoni610]

I was able to use ffmpeg -i 0:0 to get images from the camera

[abhiTronix]

I was able to use ffmpeg -i 0:0 to get images from the camera

@shersoni610 Paste the output of ffmpeg -i 0:0 here.