In RTPSenderVideoFrameTransformerDelegate::TransformFrame(), the encoder
queue might still be null when a frame queued by a previous delegate
arrives. This could happen in the context of renegotiation that results
in a codec reset. In this case, the frame should be dropped.
Bug: webrtc:12691
Change-Id: Ib738ce31738cffc7e01053dbc82237f457fc2286
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/216393
Commit-Queue: Guido Urdaneta <guidou@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33866}
bd27adb714