Setting Properties for Elements in Gst-nvmultiurisrcbin and Gst-nvurisrcbin Plugins

[alfonso-corrado]

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version 7.0 (docker image: nvcr.io/nvidia/deepstream:7.0-sample-multiarch)
• NVIDIA GPU Driver Version (valid for GPU only) 535.171.04

Hi,

I would like to use the Gst-nvmultiurisrcbin and Gst-nvurisrcbin plugins.

From the file located at:
/opt/nvidia/deepstream/deepstream-7.0/sources/gst-plugins/gst-nvmultiurisrcbin/gstdsnvurisrcbin.h
I see that the GstDsNvUriSrcBin contains the elements cap_filter and nvvidconv.
I need to set properties such as src-crop for the Gst-nvvideoconvert plugin and the width and height for the capsfilter element.

How can I set these properties for that elements contained within Gst-nvmultiurisrcbin or Gst-nvurisrcbin plugins?

Thank you.

[junshengy]

1.These values ​​cannot be adjusted directly through properties or configuration files

2.They can be handled via the child-added signal. You can refer to the decodebin_child_added function in /opt/nvidia/deepstream/deepstream-7.0/sources/apps/apps-common/src/deepstream_source_bin.c

g_signal_connect (G_OBJECT (object), "child-added", G_CALLBACK (decodebin_child_added), user_data);

[alfonso-corrado]

Thanks for the answer.

I have another related question. Is there a way to see all the elements inside Gst-nvurisrcbin? I did not find these elements inside the dot file produced with the function GST_DEBUG_BIN_TO_DOT_FILE(bin, details, file_name), even when setting the details to GST_DEBUG_GRAPH_SHOW_ALL.

[junshengy]

@alfonso-corrado

GST_DEBUG_BIN_TO_DOT_FILE

You can try to store the .dot file when the pipeline state switches. and try to save it after PLAYING