Re: [PATCH v9 0/1] MR7288: winegstreamer: Avoid large buffer pushes in wg_transform.

[Yuxuan Shui (＠yshui)]

updates:

1. flush wg_stepper in wg_transform_flush.
2. allow events to passthrough wg_stepper unimpeded when there are no buffers in fifo - to keep the flushing behavior the same as before this change.