[gstreamer-bugs] [Bug 349943] New: [QOS] documentation/code mismatch

[GStreamer (bugzilla.gnome.org)]

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 GStreamer | gstreamer (core) | Ver: HEAD CVS

           Summary: [QOS] documentation/code mismatch
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: julien at moutte.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


part-qos.txt mentions Jitter as being negative when the buffer arrived late and
positive if it arrived in time. It also mentions that :

Using the jitter we can calculate the time when the buffer arrived in the
sink:

  T1 = B1 - J1.                                (1)

The time the buffer leaves the sink after synchronisation is measured as:

  T2 = B1 - (J1 < 0 ? J1 : 0)                  (2)

When Basesink code does it the other way around :

/* this is the time the buffer entered the sink */
entered = start + jitter;
/* this is the time the buffer left the sink */
left = start + (jitter < 0 ? 0 : jitter);


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