Error when creating graph composer extension for splitmuxsink

[bram9]

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version 6.2
• JetPack Version (valid for Jetson only)
• TensorRT Version 8.5.1
• NVIDIA GPU Driver Version (valid for GPU only) 525.105.17
• Issue Type( questions, new requirements, bugs) Issue
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)

In the Deepstream graph composer, it is possible to generate an extension via Tools | Generate Extension. When I execute this for jpegenc, is works successfully. However, when I try this for splitmuxsink, I get the following error:

2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: Traceback (most recent call last):
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream/tools/graph_extension_generator/generate_extensions.py", line 77, in <module>
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: generator.generateExtension(autogenBasePath, pluginName, pluginElements)
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream-6.2/tools/graph_extension_generator/graph_gstextension_generator.py", line 86, in generateExtension
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: generator.generateComponent(autogenBasePath, elem)
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream-6.2/tools/graph_extension_generator/graph_gstcomponent_generator.py", line 894, in generateComponent
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: self.__generateComponent(
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream-6.2/tools/graph_extension_generator/graph_gstcomponent_generator.py", line 802, in __generateComponent
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: (classCode, interfaceDefs) = self.__generateClass(elementName)
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream-6.2/tools/graph_extension_generator/graph_gstcomponent_generator.py", line 431, in __generateClass
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: _signal_set_str) = self.__generateSignal(elementName, signal, className)
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: File "/opt/nvidia/deepstream/deepstream-6.2/tools/graph_extension_generator/graph_gstcomponent_generator.py", line 388, in __generateSignal
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: factory_add_code = factory_add_code.replace("<BRIEF>", yamlSignalDef["brief"])
2023-06-09 09:37:50  [Error] [omni.kit.app._impl] [py stderr]: KeyError: 'brief'

(Empty lines from these error messages were removed for brevity).

splitmuxsink is available on the deepstream-6.2-devel container:

# gst-inspect-1.0 splitmuxsink
Factory Details:
  Rank                     none (0)
  Long-name                Split Muxing Bin
  Klass                    Generic/Bin/Muxer
  Description              Convenience bin that muxes incoming streams into multiple time/size limited files
  Author                   Jan Schmidt <jan@centricular.com>

Plugin Details:
  Name                     multifile
  Description              Reads/Writes buffers from/to sequentially named files
  Filename                 /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstmultifile.so
  Version                  1.16.3
  License                  LGPL
  Source module            gst-plugins-good
  Source release date      2020-10-21
  Binary package           GStreamer Good Plugins (Ubuntu)
  Origin URL               https://launchpad.net/distros/ubuntu/+source/gst-plugins-good1.0

Is there a way to fix this locally in the current version of Deepstream 6.2?

Thanks in advance!

[Fiona.Chen]

@bram9

When I execute this for jpegenc, is works successfully. However, when I try this for splitmuxsink, I get the following error:

What do you mean by generate extension with jpegenc or slitmuxsink? How did you do that? Can you provide the complete steps and commands?

[bram9]

Fiona,

Below the steps to reproduce:

1. Start the Docker Deepstream development container (nvcr.io/nvidia/deepstream:6.2-devel).
2. Install xterm (a missing package, required to install the dependencies for generate and/or building the extension):
   apt install xterm
3. Open the graph composer:
   composer &
4. Sync the ngc repository (Registry | Sync):
   
5. Open Tools | Generate Extension:
   
   
6. Fill in the gstreamer element name for which to generate the extension, and the destination path:
   
   
7. Click “Install Dependencies”, then “Generate”, then “Build”.

This works for jpegenc (and probably for some other gstreamer elements). Below the screenshot after generating for jpegenc:

When this succeeds, the jpegenc extension is visible in graph composer’s list of components:

The name only shows <DISPLAY_NAME>, but it is in fact the jpegenc component.

This doesn’t work for splitmuxsink, with the error message as posted in the first message.

[Fiona.Chen]

I can reproduce the problem. We are investigating the problem, will be back when there is any progress.

[rob.hammett]

Any updates to this?

[Fiona.Chen]

The bug is fixed since DeepStream 6.4