Follow H.265 spec section 7.4.2.4.4 to set is_first_packet_in_frame flag
in rtp header, to make sure we only set it to true when corresponding
NALU can be the first NALU in a frame.
Bug: chromium:384391181
Change-Id: I082c38513d9d213f8d354633539028b57777368f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/372742
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43651}
abadbce1fa