[gstreamer-bugs] [Bug 470456] New: [API] add gst_missing_*_installer_detail_new()

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: HEAD CVS
           Summary: [API] add gst_missing_*_installer_detail_new()
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: t.i.m at zen.co.uk
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


In Thoggen I know exactly what desirable plugins are missing (e.g.
ffdeinterlace) and want to call the external installer to have them installed. 
With the current API I need to first create a dummy GstElement, then a dummy
GstMessage, then get the installer detail string from the message, then unref
message and element and then call the installer with the installer detail
string retrieved.

This would be much easier if we could create installer detail strings directly,
ie:

gchar * gst_missing_uri_source_installer_detail_new (const gchar * protocol);

gchar * gst_missing_uri_sink_installer_detail_new (const gchar * protocol);

gchar * gst_missing_element_installer_detail_new (const gchar * factory_name);

gchar * gst_missing_decoder_installer_detail_new (const GstCaps * decode_caps);

gchar * gst_missing_encoder_installer_detail_new (const GstCaps * encode_caps);

The attached patch adds API, documentation and unit tests for that.


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