GLib.Error: gst_parse_error: no element "nvstreammux" (1)

[swo026]

Hello, I pulled the dockerfile you provided, but encountered GLib.Error when running ds_pipeline.py

root@c4762d0ad73c:/home/deepstream_video_pipeline# python3 ds_pipeline.py
nvstreammux name=mux0 gpu-id=0 enable-padding=1 width=300 height=300 batch-size=8 batched-push-timeout=1000000 ! 
nvinfer config-file-path=detector_default.config gpu-id=0 batch-size=8 ! fakesink enable-last-sample=0
filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_0 
filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_1 
filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_2 
filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_3 

Traceback (most recent call last):
  File "ds_pipeline.py", line 31, in <module>
    pipeline = Gst.parse_launch(pipeline_cmd)
GLib.Error: gst_parse_error: no element "nvstreammux" (1)

I also tried to run it in the miniconda environment, but another error occurred

(base) root@c4762d0ad73c:/home/deepstream_video_pipeline# python3 ds_pipeline.py 
Traceback (most recent call last):
  File "ds_pipeline.py", line 4, in <module>
    gi.require_version('Gst', '1.0')
  File "/opt/conda/lib/python3.8/site-packages/gi/__init__.py", line 126, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gst not available

Any idea about how to solve this? Many thanks.

[pbridger]

Try running python instead of python3?

…

On Mon, Dec 21, 2020 at 4:07 PM swo026 ***@***.***> wrote: Hello, I pulled the dockerfile you provided, but encountered GLib.Error when running ds_pipeline.py ***@***.***:/home/deepstream_video_pipeline# python3 ds_pipeline.py nvstreammux name=mux0 gpu-id=0 enable-padding=1 width=300 height=300 batch-size=8 batched-push-timeout=1000000 ! nvinfer config-file-path=detector_default.config gpu-id=0 batch-size=8 ! fakesink enable-last-sample=0 filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_0 filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_1 filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_2 filesrc location=media/in.mp4 num-buffers=512 ! qtdemux ! h264parse ! nvv4l2decoder gpu-id=0 ! mux0.sink_3 Traceback (most recent call last): File "ds_pipeline.py", line 31, in <module> pipeline = Gst.parse_launch(pipeline_cmd) GLib.Error: gst_parse_error: no element "nvstreammux" (1) I also tried to run it in the miniconda environment, but another error occurred (base) ***@***.***:/home/deepstream_video_pipeline# python3 ds_pipeline.py Traceback (most recent call last): File "ds_pipeline.py", line 4, in <module> gi.require_version('Gst', '1.0') File "/opt/conda/lib/python3.8/site-packages/gi/__init__.py", line 126, in require_version raise ValueError('Namespace %s not available' % namespace) ValueError: Namespace Gst not available Any idea about how to solve this? Many thanks. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABBLQECMOWP6KZE7BDYSDTSV4F4TANCNFSM4VD5YBXA> .

[swo026]

@pbridger when running python instead of python3 I got SyntaxError

root@c4762d0ad73c:/home/deepstream_video_pipeline# python da_pipeline.py
python: can't open file 'da_pipeline.py': [Errno 2] No such file or directory
root@c4762d0ad73c:/home/deepstream_video_pipeline# python ds_pipeline.py 
  File "ds_pipeline.py", line 21
    '''
      ^
SyntaxError: invalid syntax

and

(base) root@c4762d0ad73c:/home/deepstream_video_pipeline# python ds_pipeline.py 
Traceback (most recent call last):
  File "ds_pipeline.py", line 4, in <module>
    gi.require_version('Gst', '1.0')
  File "/opt/conda/lib/python3.8/site-packages/gi/__init__.py", line 126, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gst not available

[pbridger]

That implies an unexpected python version, which sounds like a broken container.

How are you starting it?