05f8f1d273
This change adds helper classes to manipulate Absolute Capture Time header extensions. Both classes support the "timestamp interpolation" optimization. Bug: webrtc:10739 Change-Id: I08eff46eb8910842a6dbaa3288b976004fabe1c7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/149801 Commit-Queue: Chen Xing <chxg@google.com> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28936}