msbc codec: do not decode zero-filled frame

Zero-stuffed frame is not decoded and passed up the stack.
Instead, codec context is reset and frame collecting starts over.

Credit: @smarter
0 jobs for !254 with bt-msbc-out
latest yaml invalid error merge request

Found errors in your .gitlab-ci.yml:

  • build-container: unknown keys in `extends` (.ubuntu@container-ifnot-exists)
You can also test your .gitlab-ci.yml in CI Lint