ERROR while running example run_appsrc.py

[serbuh]

Trying to run appsrc example on Jetson Nano (arm64 architechture). And getting the following error

INFO | pygst.GstPipeline | 16.03 16:09:26.601 | MainThread | GstPipeline
gst-launch-1.0 appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! videoconvert ! autovideosink
INFO | pygst.GstPipeline | 16.03 16:09:26.689 | MainThread | Starting GstPipeline
DEBUG | pygst.GstPipeline | 16.03 16:09:26.691 | MainThread | GstPipeline Setting pipeline state to PLAYING ...
DEBUG | pygst.GstPipeline | 16.03 16:09:26.692 | MainThread | GstPipeline Pipeline state set to PLAYING
ERROR | pygst.GstPipeline | 16.03 16:09:26.718 | Thread-1 | Gstreamer.GstPipeline: Error gst-stream-error-quark: Internal data stream error. (1): gstbasesrc.c(3055): gst_base_src_loop (): /GstPipeline:pipeline0/GstAppSrc:appsrc0:
streaming stopped, reason not-negotiated (-4).
DEBUG | pygst.GstPipeline | 16.03 16:09:26.718 | Thread-1 | GstPipeline Stopping pipeline ...
DEBUG | pygst.GstPipeline | 16.03 16:09:26.719 | Thread-1 | GstPipeline Reseting pipeline state ....
INFO | pygst.GstPipeline | 16.03 16:09:27.638 | MainThread | GstPipeline Shutdown requested ...
INFO | pygst.GstPipeline | 16.03 16:09:27.638 | MainThread | GstPipeline successfully destroyed
DEBUG | pygst.GstContext | 16.03 16:09:27.638 | MainThread | GstContext Quitting main loop ...
DEBUG | pygst.GstContext | 16.03 16:09:27.640 | MainThread | GstContext Joining main loop thread...

I am new to the gstreamer and it is hard to figure out what is actually gone wrong.
Will appreciate your help. Thank you.

[jackersson]

Hi @serbuh ,

The main issue is autovideosink. Change it to fakesink, for example:

python launch_pipeline/run_appsrc.py -p "appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! videoconvert ! fakesink"

Previous command worked on Jetson Nano ;)

The problem is that autovideosink chooses the best suitable plugin and on Jetson Nano it is nvoverlaysink. nvoverlaysink requires GPU located buffers (video/x-raw(memory:NVMM), and in run_appsrc.py it is CPU located memory (video/x-raw). That's why there is an negotiation error.

Best regards,

[tadam98]

I am getting the same error on Jetson. With the suggested method there is no problem but nothing is displayed.

And I am getting this error as well when running is a terminal of the desktop:
python launch_pipeline/run_appsrc.py -p 'appsrc emit-signals=True is-live=True c aps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! videoco nvert ! fakesink'

When running from x-term there is no error but no result either.

(gst-aptsrc) pyimagesearch@pyimagesearch-nano:~/Downloads/share/gstreamer/appsrc/gst-python-tutorials$ ./runme_appsrc INFO | pygst.GstPipeline | 04.05 10:09:34.632 | MainThread | GstPipeline gst-launch-1.0 appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! videoconvert ! fakesink INFO | pygst.GstPipeline | 04.05 10:09:34.652 | MainThread | Starting GstPipeline DEBUG | pygst.GstPipeline | 04.05 10:09:34.654 | MainThread | GstPipeline Setting pipeline state to PLAYING ... DEBUG | pygst.GstPipeline | 04.05 10:09:34.655 | MainThread | GstPipeline Pipeline state set to PLAYING DEBUG | pygst.GstPipeline | 04.05 10:09:35.499 | Thread-1 | Gstreamer.GstPipeline: Received stream EOS event DEBUG | pygst.GstPipeline | 04.05 10:09:35.499 | Thread-1 | GstPipeline Stopping pipeline ... DEBUG | pygst.GstPipeline | 04.05 10:09:35.500 | Thread-1 | GstPipeline Sending EOS event ... DEBUG | pygst.GstPipeline | 04.05 10:09:35.502 | Thread-1 | GstPipeline Reseting pipeline state .... INFO | pygst.GstPipeline | 04.05 10:09:35.599 | MainThread | GstPipeline Shutdown requested ... INFO | pygst.GstPipeline | 04.05 10:09:35.600 | MainThread | GstPipeline successfully destroyed DEBUG | pygst.GstContext | 04.05 10:09:35.600 | MainThread | GstContext Quitting main loop ... DEBUG | pygst.GstContext | 04.05 10:09:35.604 | MainThread | GstContext Joining main loop thread... (gst-aptsrc) pyimagesearch@pyimagesearch-nano:~/Downloads/share/gstreamer/appsrc/gst-python-tutorials$

[jackersson]

Hi @tadam98 ,

Instead of fakesink you can use: gtksink, ximagesink, xvimagesink
To use nvoverlaysink, use nvvideoconvert plugin:
"appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! nvvideoconvert ! nvoverlaysink"

Hope this helps ;)

[tadam98]

Hi, I have a USB camera and nothing happened. Not sure how to change it accordingly. Can I do the same "H.264 file in" to "H.264file out" ? Will these be using the Jetson CUDA? ====================== INFO | pygst.GstPipeline | 04.05 13:56:48.636 | MainThread | GstPipeline gst-launch-1.0 appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! videoconvert ! fakesink INFO | pygst.GstPipeline | 04.05 13:56:48.656 | MainThread | Starting GstPipeline DEBUG | pygst.GstPipeline | 04.05 13:56:48.657 | MainThread | GstPipeline Setting pipeline state to PLAYING ... DEBUG | pygst.GstPipeline | 04.05 13:56:48.659 | MainThread | GstPipeline Pipeline state set to PLAYING DEBUG | pygst.GstPipeline | 04.05 13:56:49.482 | Thread-1 | Gstreamer.GstPipeline: Received stream EOS event DEBUG | pygst.GstPipeline | 04.05 13:56:49.484 | Thread-1 | GstPipeline Stopping pipeline ... DEBUG | pygst.GstPipeline | 04.05 13:56:49.485 | Thread-1 | GstPipeline Sending EOS event ... DEBUG | pygst.GstPipeline | 04.05 13:56:49.487 | Thread-1 | GstPipeline Reseting pipeline state .... INFO | pygst.GstPipeline | 04.05 13:56:49.583 | MainThread | GstPipeline Shutdown requested ... INFO | pygst.GstPipeline | 04.05 13:56:49.583 | MainThread | GstPipeline successfully destroyed DEBUG | pygst.GstContext | 04.05 13:56:49.584 | MainThread | GstContext Quitting main loop ... DEBUG | pygst.GstContext | 04.05 13:56:49.587 | MainThread | GstContext Joining main loop thread...

…

________________________________ From: Taras <notifications@github.com> Sent: Monday, May 4, 2020 8:13 AM To: jackersson/gst-python-tutorials <gst-python-tutorials@noreply.github.com> Cc: tadam98 <tadam_98@hotmail.com>; Mention <mention@noreply.github.com> Subject: Re: [jackersson/gst-python-tutorials] ERROR while running example run_appsrc.py (#2) Hi @tadam98<https://github.com/tadam98> , Instead of fakesink you can use: gtksink, ximagesink, xvimagesink To use nvoverlaysink, use nvvideoconvert plugin: "appsrc emit-signals=True is-live=True caps=video/x-raw,format=RGB,width=640,height=480,framerate=30/1 ! queue ! nvvideoconvert ! nvoverlaysink" Hope this helps ;) — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#2 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AFBMCTZSEKY3HOPIIGSTZ5LRPZ2I3ANCNFSM4LMJK6JA>.