1973705 - receiveTime (and probably captureTime) appear to have the wrong time base

Status: RESOLVED DUPLICATE of bug 1937776

(Core :: WebRTC: Audio/Video, defect)

Description

[Randell Jesup [:jesup] (needinfo me)]

This is causing problems with XBox cloud gaming; they look at these values and decide they're not reliable.

Example metadata from Edge for an xCloud session:
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":342369.6,"height":1080,"mediaTime":0.001332,"presentationTime":342369.6,"presentedFrames":2,"processingDuration":0.0231,"receiveTime":342345.7,"rtpTimestamp":3640013127,"width":1920}
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":352389.8,"height":1080,"mediaTime":10.004628,"presentationTime":352373.5,"presentedFrames":302,"processingDuration":0.001,"receiveTime":352371.5,"rtpTimestamp":3640913937,"width":1920}
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":362407,"height":1080,"mediaTime":20.020315,"presentationTime":362390.6,"presentedFrames":603,"processingDuration":0.0006,"receiveTime":362387.6,"rtpTimestamp":3641817807,"width":1920}

Example metadata from Firefox for an xCloud session:
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":78316.5,"height":1080,"mediaTime":0,"presentationTime":78299.82,"presentedFrames":3,"processingDuration":0.0049,"receiveTime":1747256065194,"rtpTimestamp":3481432426,"width":1920} StreamLogger.ts:90:17
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":88310.28,"height":1080,"mediaTime":0,"presentationTime":88310.28,"presentedFrames":307,"processingDuration":0.0104,"receiveTime":1747256075333,"rtpTimestamp":3482345476,"width":1920} StreamLogger.ts:90:17
GameStreamingSDK: Video frame metadata: {"expectedDisplayTime":98317.62,"height":1080,"mediaTime":0,"presentationTime":98317.62,"presentedFrames":607,"processingDuration":0.0044,"receiveTime":1747256085343,"rtpTimestamp":3483246376,"width":1920} StreamLogger.ts:90:17