Basler pylon Gstreamer for python

[mgabell]

Hi,

I have seen the library InstantCameraAppSrc library from Imaginghub that can be used to utilize Gstreamer and Basler camera. It does not however consider python. Its all C code. Anyone here who knows about a libs that support pypylon/python and Gstreamer?

br, Mgabell

[thiesmoeller]

@mgabell It works this way:

+------------+        +--------------+     +-------------+
|            |        |              |     |             
|   PYPYLON  +------->+   appsrc     +----->     gst     
|            |        |              |     |     pipeline..
+------------+        +--------------+     +-------------+

see this explanation: http://lifestyletransfer.com/how-to-use-gstreamer-appsrc-in-python/

[mgabell]

Hi,

Thanks for the response. That means that you will go to the CPU buffer and back into (whatever GPU buffer of sorts) which would decrease performance?

Br, Magnus

From: Thies Möller notifications@github.com Sent: den 23 februari 2021 09:45 To: basler/pypylon pypylon@noreply.github.com Cc: Gabell, Magnus magnus.gabell@uponor.com; Mention mention@noreply.github.com Subject: Re: [basler/pypylon] Basler pylon Gstreamer for python (#328)

@mgabellhttps://github.com/mgabell It works this way:

+------------+ +--------------+ +-------------+

| | | | |

| PYPYLON +------->+ appsrc +-----> gst

| | | | | pipeline..

+------------+ +--------------+ +-------------+

see this explanation: http://lifestyletransfer.com/how-to-use-gstreamer-appsrc-in-python/

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHubhttps://github.com/basler/pypylon/issues/328#issuecomment-784010014, or unsubscribehttps://github.com/notifications/unsubscribe-auth/AS2O5NH2O72KMADN4ON5N2LTANTKTANCNFSM4XQXIJ2Q.

[Christina-ko]

Hi,

Can you provide me a guide on how to do the installation of GStreamer in ubuntu 18.04. I followed the steps stated in https://github.com/joshdoe/gst-plugins-vision. However, when I try this command: gst-launch-1.0 pylonsrc ! autovideoconvert ! autovideosink

I got the error: WARNING: erroneous pipeline: no element "pylonsrc"

Do you have any ideas what caused this error?

[MagnusGabell]

Hi, I dont know exactly. Ensure you have pylon library installed. Also g-streamer, of course. Then for the code attached you also need pypylon. For windows I dont know how to install and get this to work, but in linux it should. not a direct answer to your question but I also struggle with the pipelines. simple_gstr.zip

[MagnusGabell]

Hi,

Can you provide me a guide on how to do the installation of GStreamer in ubuntu 18.04. I followed the steps stated in https://github.com/joshdoe/gst-plugins-vision. However, when I try this command: gst-launch-1.0 pylonsrc ! autovideoconvert ! autovideosink

I got the error: WARNING: erroneous pipeline: no element "pylonsrc"

Do you have any ideas what caused this error?

Try this "gst-inspect-1.0 | grep pylon" (without the quote signs ") to ensure you have the pylon plugins installed properly check also the follow thread on the matter. I had the same problem as you... : https://github.com/joshdoe/gst-plugins-vision/issues/50

[Christina-ko]

Hi, I dont know exactly. Ensure you have pylon library installed. Also g-streamer, of course. Then for the code attachedyou also need pypylon. For windows I dont know how to install and get this to work, but in linux it should. not a direct answer to your question but I also struggle with the pipelines. simple_gstr.zip

Hi,

Thanks for the reply and sharing.

I have installed the pylon 6.2 in my Ubuntu 18.04 PC. How can I check whether my g-streamer is successfully installed in my PC?

[MagnusGabell]

If gst-launch works responds and gst-inspect you probably have it. More likely the pylon-plugin is not.

//Magnus

[Christina-ko]

If gst-launch works responds and gst-inspect you probably have it. More likely the pylon-plugin is not.

//Magnus

Thank you Do you have any document on how to install g-streamer correctly in ubuntu 18.04 ? Do you think this document is useful (https://gitlab.com/zingmars/gst-pylonsrc)?

[thiesmoeller]

Check that GST_PLUGIN_PATH for local install or for a systemwide install GST_PLUGIN_SYSTEM_PATH is pointing to where you installed pylonsrc

Christina-ko @.***> schrieb am Fr., 17. Dez. 2021, 08:25:

If gst-launch works responds and gst-inspect you probably have it. More likely the pylon-plugin is not.

//Magnus

Thank you Do you have any document on how to install g-streamer correctly in ubuntu 18.04 ? Do you think this document is useful ( https://gitlab.com/zingmars/gst-pylonsrc)?

— Reply to this email directly, view it on GitHub https://github.com/basler/pypylon/issues/328#issuecomment-996495449, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABKCYJKYAMS5JQ2JP44JZILURLQVZANCNFSM4XQXIJ2Q . You are receiving this because you commented.Message ID: @.***>

[Christina-ko]

Check that GST_PLUGIN_PATH for local install or for a systemwide install GST_PLUGIN_SYSTEM_PATH is pointing to where you installed pylonsrc Christina-ko @.> schrieb am Fr., 17. Dez. 2021, 08:25: … If gst-launch works responds and gst-inspect you probably have it. More likely the pylon-plugin is not. //Magnus Thank you Do you have any document on how to install g-streamer correctly in ubuntu 18.04 ? Do you think this document is useful ( https://gitlab.com/zingmars/gst-pylonsrc)? — Reply to this email directly, view it on GitHub <#328 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABKCYJKYAMS5JQ2JP44JZILURLQVZANCNFSM4XQXIJ2Q . You are receiving this because you commented.Message ID: @.>

Hi,

I will check it and try it again. Thank you for your help

[mgabell]

I found that it was easy to follow the instruction to get gstreamer to work but to get pylon to work was tricky. I think the solution was in the thread I referred to.