Exception: jetson.utils -- failed to create videoSource device

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hi,
jetson-containers run $(autotag nano_llm)
python3 -m nano_llm.vision.video
–model Efficient-Large-Model/VILA1.5-3b
–max-images 8
–max-new-tokens 48
–video-input /data/my_video.mp4
–video-output /data/my_output.mp4
–prompt ‘What changes occurred in the video?’
When running the above command on the Jetson AGX Orin, I received the following errors:
[gstreamer] initialized gstreamer, version 1.20.3.0
[gstreamer] gstDecoder – couldn’t find file ‘/data/gun_detection_sample_3.mp4’
[gstreamer] gstDecoder – failed to create decoder for file:///data/gun_detection_sample_3.mp4
Traceback (most recent call last):
File “/usr/lib/python3.10/runpy.py”, line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File “/usr/lib/python3.10/runpy.py”, line 86, in _run_code
exec(code, run_globals)
File “/opt/NanoLLM/nano_llm/vision/video.py”, line 77, in
video_source = VideoSource(**vars(args), cuda_stream=0)
File “/opt/NanoLLM/nano_llm/plugins/video/video_source.py”, line 67, in init
self.stream = videoSource(video_input, options=options)
Exception: jetson.utils – failed to create videoSource device
Could you please help me resolve this issue?

image
image1318×323 24 KB

4

Hi,

According to this:

[gstreamer] gstDecoder – couldn’t find file ‘/data/gun_detection_sample_3.mp4’

Could you check if the video exists?
Thanks.

5

Yes, video is exists.

image
image1099×361 28.6 KB

6

Hi,

Could you move the video to another folder that is owned by the $USER account?

To check if a file exists, jetson-utils will execute the “stat” command to the file.

This experiment can help us to verify if this issue is related to the permission or not.

Thanks.

7

File Location: /home/jetson/gun_detection_sample_3.mp4
File exists.
File Size: 6012915 bytes
Owner UID: 1000
Permissions: 0o100664
File is readable
File is writable

8

Hi,

Since you run the command inside the container, could you verify if the file exists within the container?

For example:

jetson-containers run $(autotag nano_llm) bash

Then check if /data/gun_detection_sample_3.mp4 is there.

Thanks.

10

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