[Bug 723134] New: [hlsdemux] Playback may not always start when using a file:// url

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=723134
  GStreamer | gst-plugins-bad | git

           Summary: [hlsdemux] Playback may not always start when using a
                    file:// url
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: dpalmer at digisoft.tv
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=267357)
 View: https://bugzilla.gnome.org/attachment.cgi?id=267357
 Review: https://bugzilla.gnome.org/review?bug=723134&attachment=267357

Fix; check downloader->priv->download->completed before waiting.

We use hlsdemux with a file:// url, and have a change in place to set the file
blocksize to 64k, rather than the default 4k. This change exposes a race in
uridownloader; gst_uri_downloader_fetch_uri_with_range() races with EOS
handling in gst_uri_downloader_sink_event(). We sometimes see the EOS event
being raised, and the downloader->priv->cond condition then being missed by
gst_uri_downloader_fetch_uri_with_range(), which hangs.

I've attached a fix.

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