Object class 'GstBin' has no property named 'sync'

There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks

1.You should to make sure the parameters can be changed when the pipeline is playing.

gst-inspect-1.0  your_plugin

2.If the parameters can be changed when the pipeline is playing, you need to implement the relevant logic yourself in your demo code.

If you have new problems, please open a new topic. We try to ensure that the problems are consistent with the title for the convenience of others’ reference. Thanks