[Bug 698306] New: Gapless playing using 'about-to-finish' callback fails wih HTTT-URIs

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=698306
  GStreamer | gst-plugins-base | 1.0.6

           Summary: Gapless playing using 'about-to-finish' callback fails
                    wih HTTT-URIs
    Classification: Platform
           Product: GStreamer
           Version: 1.0.6
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: henner.zeller+gnomebugzilla at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=241829)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=241829)
Program to reproduce. Find version with Makefile and test-sound on
https://github.com/hzeller/gstreamer-gapless-test

Using the 'about-to-finish' callback to set the next URI to play to get gapless
playback (as documented) works fine with file-URIs, but fails with a network
resource such as a HTTP-URI.

Instead of playing the resource set by the about-to-finish event, it quickly
re-emits the event without even having started to play the new resource --
looping forever, racing to the next resource.

Attached, you find a simple program to reproduce the problem. For easier
reproduction, a version including Makefile and test-sound can be found on
https://github.com/hzeller/gstreamer-gapless-test

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