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Release notes for GStreamer Base Plugins 1.0.6

The GStreamer team is pleased to announce a new bug-fix release in the 1.x stable series of the core of the GStreamer streaming media framework.

The 1.x series is a stable series targeted at end users. It is not API or ABI compatible with the stable 0.10.x series. It is, however, parallel installable with the 0.10.x series and will not affect an existing 0.10.x installation.

This module contains a set of reference plugins, base classes for other plugins, and helper libraries. It also includes essential elements such as audio and video format converters, and higher-level components like playbin, decodebin, encodebin, and discoverer. This module is kept up-to-date together with the core developments. Element writers should look at the elements in this module as a reference for their development. This module contains elements for, among others:

  • device plugins: x(v)imagesink, alsa, v4lsrc, cdparanoia
  • containers: ogg
  • codecs: vorbis, theora
  • text: textoverlay, subparse
  • sources: audiotestsrc, videotestsrc, giosrc
  • network: tcp
  • typefind functions
  • audio processing: audioconvert, adder, audiorate, audioresample, volume
  • visualisation: libvisual
  • video processing: videoconvert, videoscale
  • high-level components: playbin, uridecodebin, decodebin, encodebin, discoverer
  • libraries: app, audio, fft, pbutils, riff, rtp, rtsp, sdp, tag, video
Other modules containing plugins are:
contains a set of well-supported plugins under our preferred license
contains a set of well-supported plugins, but might pose problems for distributors
contains a set of less supported plugins that haven't passed the rigorous quality testing we expect, or are still missing documentation and/or unit tests
contains a set of codecs plugins based on libav (formerly gst-ffmpeg)

Features of this release

  • adder: fix setting caps via the "caps" property
  • alsasink: don't use 100% CPU
  • appsrc: fix locking order
  • encodebin: sync muxer state with parent bin so encodebin can be added dynamically to pipeline
  • libvisual: fix improper video frame clear operation
  • pango: fix attribute list handling
  • playbin: fix playsink caps handling so that converters get plugged when needed
  • playbin: fix subtitleoverlay caps handling to avoid not-negotiated errors when plugins are missing
  • videoscale: Correct DAR and border calculations
  • ximagesink: fon't access structures of EMPTY caps
  • typefinding: fix y4m caps
  • build: fix build with automake 1.13

Bugs fixed in this release

  • 688476 : Seek in matroska file fails with not-negotiated error when using playsink
  • 688803 : playbin: converters don't work? not-negotiated error with non-1/1 PAR and ximagesink
  • 690937 : alsasink: playing video files with gst-launch causes CPU 100%
  • 691687 : GstImageType documentation is misleading
  • 693224 : appsrc deadlocks when setting pad caps before pushing buffer
  • 693372 : 1.0 branch is still using AM_CONFIG_HEADER
  • 693981 : subparse: fix bogus discontinuity detection if offset not set on buffers
  • 696019 : videoscale does not preserve DAR with add-borders=TRUE


You can find source releases of gst-plugins-base in the gst-plugins-base download directory.

The git repository and details how to clone it can be found at .


The project's website is

Support and Bugs

We use GNOME's bugzilla for bug reports and feature requests.

Please submit patches via bugzilla as well.

For help and support, please subscribe to and send questions to the gstreamer-devel mailing list (see below for details).

Find us on IRC at #gstreamer.


Git is hosted on You can browse the gst-plugins-base repository.

All code is in Git and can be checked out from there.

Interested developers of the core library, plugins, and applications should subscribe to the gstreamer-devel list.

Contributors to this release

  • Arnaud Vrac
  • Greg Rutz
  • Jan Schmidt
  • Jan Schole
  • Olivier Crête
  • Sebastian Dröge
  • Stefan Sauer
  • Tim-Philipp Müller
  • Vincent Penquerc'h
  • Wim Taymans
  • yanghuolin

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