How to use web camera source?

[lightlu]

Web Camera Source section is noted as TBD in customizing_pipeline_requests.md. Is v4l2src source supported now? Thank you.

[whbruce]

@lightlu Response has been updated with a simplified solution.

The pipeline definition file needs a tweak as gavdetect cannot deal with webcam input directly. As an example update object_detection/person_vehicle_bike pipeline/pipeline.json template as follows

• add videoconvert element between uridecodebin and gvadetect
• add add-empty-results=true property to gvametaconvert for debugging

  "template": ["uridecodebin name=source ! videoconvert",
                    " ! gvadetect model={models[object_detection][person_vehicle_bike][network]} name=detection",
                    " ! gvametaconvert name=metaconvert add-empty-results=true ! gvametapublish name=destination",
                    " ! appsink name=appsink"
                    ],

  then re-start service and start pipeline as follows

  $ ./vaclient/vaclient.sh run object_detection/person_vehicle_bike v4l2:///dev/video0

[whbruce]

@lightlu does this answer your question?

[lightlu]

@whbruce Thank you & sorry for late reply Let me provide patch to use webcam on /dev/video0 for samples/record_frames/ which based on this git commit: v0.6.0-beta origin/master 2534d9b4d8487864bfdccdfcdc746ccf0f5627d7 0001-Force-samples-record_frames-to-use-dev-video0-webcam.zip

[whbruce]

@lightlu thanks for contribution. In the short term we have updated our docs. Our next release will contain a "universal" VA Serving source so that pipelines can take media from anywhere.