tree 57218286102704b4a90c6a52b5d7bd823e4a0cb2
parent a9b40ae0a4710f26e6943c51661ae3cf202ee81a
author Philipp Hancke <phancke@meta.com> 1734544904 -0800
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1737958227 -0800

srtp: stop using private libsrtp function to determine packet index

instead use the standard API to get the rollover counter and
determine the extended sequence number which is the basis for the packet index.

See https://github.com/cisco/libsrtp/issues/738 and
https://github.com/cisco/libsrtp/issues/721

BUG=webrtc:357776213

Change-Id: I90c5a4a538f56132158aa48db8700187fcdb47d2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/371960
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43802}