[gstreamer-bugs] [Bug 592232] New: [qtdemux] QT style string tag extraction fails

Tue Aug 18 08:36:32 PDT 2009

http://bugzilla.gnome.org/show_bug.cgi?id=592232

           Summary: [qtdemux] QT style string tag extraction fails
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: manauw at skynet.be
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


--- Comment #0 from Mark Nauwelaerts <manauw at skynet.be> 2009-08-18 15:36:28 UTC ---
Created an attachment (id=141087)
Use guint32 for tag fourcc

Apple trailers have some tags stored in QT style format, which a.o. means
fourcc starts with (C) symbol.  A specific code path tests for this using:
    if ((type >> 24) == 0xa9)
However, type is int, so sign-extension messes with shift and subsequent
comparison.

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