[Bug 755172] New: dashdemux: seeking in a stream that uses a SegmentList downloads all fragments

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=755172

            Bug ID: 755172
           Summary: dashdemux: seeking in a stream that uses a SegmentList
                    downloads all fragments
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: bugzilla at ashley-family.net
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

I have produced two DASH streams from the same fragmented MP4 files. The first
uses a single file for each Representation and a SegmentList with SegmentURL
elements to extract each fragment from the file. The second has separate MP4
files for each fragment.

Seeking when using the version with separate MP4 files is working, but the
version using the SegmentList is exhibiting some odd behaviour. If I seek to
the middle of the stream, dashdemux is downloading all fragments between the
start and the chosen seek point.

The version with a SegmentList:
http://test-media.youview.co.uk/ondemand/bbb/timecode/range/timecode.mpd

The version with separate files:
http://test-media.youview.co.uk/ondemand/bbb/timecode/sep/timecode.mpd

There are also versions with a single Representation per AdaptationSet (i.e. no
adaptive bitrate).

Single bitrate with a SegmentList:
http://test-media.youview.co.uk/ondemand/bbb/timecode/range/timecode-sbr.mpd

Single bitrate with separate files:
http://test-media.youview.co.uk/ondemand/bbb/timecode/sep/timecode-sbr.mpd

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