/usr/share/doc-base/gstreamer-1.0-libs-ref is in gstreamer1.0-doc 1.8.0-1.
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Title: GStreamer 1.0 Library Reference Manual
Abstract: API documentation for libraries from GStreamer 1.0.
Section: Programming/C
Format: HTML
Files: /usr/share/doc/gstreamer1.0-doc/gstreamer-libs-1.0/*.html
Index: /usr/share/doc/gstreamer1.0-doc/gstreamer-libs-1.0/index.html
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