[Bug 764966] New: oggdemux: Gaps when playing test sine wave VBR file

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=764966

            Bug ID: 764966
           Summary: oggdemux: Gaps when playing test sine wave VBR file
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: dv at pseudoterminal.org
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 325821
  --> https://bugzilla.gnome.org/attachment.cgi?id=325821&action=edit
ogg vorbis file that is played with a gap

When playing a test sine wave file, after ~2 seconds, a gap can be heard. This
gap is caused by a gap event.

A git bisect reveals that commit 87fd62811d759bd2b6dfb22cf7638b2d70979560
"oggdemux: fix seeking in files with a "missing" stream" caused this. Prior to
this commit, the file plays without any gaps. This commit was added as part of
https://bugzilla.gnome.org/show_bug.cgi?id=745980 .

I am not sure if the file itself is broken or if this is a bug in oggdemux, but
with VLC, ffplay, mplayer, the file plays fine. oggdec also decodes without a
gap.

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