[Bug 795424] New: qtdemux: Add MSE-style flush

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Fri Apr 20 22:27:56 UTC 2018


https://bugzilla.gnome.org/show_bug.cgi?id=795424

            Bug ID: 795424
           Summary: qtdemux: Add MSE-style flush
    Classification: Platform
           Product: GStreamer
           Version: unspecified
                OS: All
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: aboya at igalia.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

The abort() method of SourceBuffer in Media Source Extensions is
expected to flush the demuxer and discard the current fragment,
if any. The configuration of tracks, if any, should be preserved.

qtdemux already has an implementation of flush events geared towards
seeks which is not compatible with this use case.

For this reason, a new type of flush is added, identified by the
presence of a `media_source_extensions_flush` field in its FLUSH_STOP
structure that implements the behavior required by the MSE spec.

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