tree 98f7d68cb0dd6cf71e7674b19c40193862d4cb1b
parent 2b9fa09fa3e3379fd8e76490c394f25670352ef2
author Chen Xing <chxg@google.com> 1565964030 +0200
committer Commit Bot <commit-bot@chromium.org> 1565966986 +0000

Add helper functions to convert between integer milliseconds and fixed-point seconds.

This change adds the following helper functions to convert between "integer milliseconds"-style timestamps and durations, and "UQ32.32 and Q32.32"-style NTP timestamps and durations:
- Int64MsToQ32x32
- UInt64MsToUQ32x32
- Q32x32ToInt64Ms
- UQ32x32ToUInt64Ms

The Q-format NTP timestamps and durations are used by some RTP/RTCP packets.

Bug: webrtc:10739
Change-Id: I89123d2dba7370f26e239d722a4975bf5ac6e668
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/148444
Commit-Queue: Chen Xing <chxg@google.com>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28878}