The code currently issues frames for encode before scheduling
a new repeat. Swap this order to account for time taken by for
slow encodes.
Bug: webrtc:15456
Change-Id: I74177069e30c1bf65268231ffba033411a0f7b9a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/318580
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40690}