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Release notes for GStreamer Base Plugins 1.11.1

The GStreamer team is pleased to announce the first release of the unstable 1.11 release series. The 1.11 release series is adding new features on top of the 1.0, 1.2, 1.4, 1.6, 1.8 and 1.10 series and is part of the API and ABI-stable 1.x release series of the GStreamer multimedia framework. The unstable 1.11 release series will lead to the stable 1.12 release series in the next weeks. Any newly added API can still change until that point.

Full release notes will be provided at some point during the 1.11 release cycle, highlighting all the new features, bugfixes, performance optimizations and other important changes.

Binaries for Android, iOS, Mac OS X and Windows will be provided in the next days.

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)

Bugs fixed in this release

  • 678301 : audioringbuffer: introspection fixes and API clean up for bindings
  • 699077 : videorate: add " rate " property to modify clip speed
  • 744191 : encodebin: Need more buffers in output queue for better performance
  • 749567 : tcpclientsrc: add timeout property
  • 752052 : appsrc: Initialize min and max vars in get_property() for fix compiler warnings
  • 756628 : audioclock: Add run time type check safety
  • 758259 : discoverer: Add support to dump dot files
  • 759358 : Add GST_CAPS_FEATURE_MEMORY_DMABUF " memory:DMABuf "
  • 765796 : rtp depayloaders output bad segment events when input stream is a non time segment
  • 767450 : video-format: Add VYUY a packed 4:2:2 format
  • 769698 : sdp: add support for rtcp-fb attributes
  • 770355 : id3v2: Fix parsing extended header and string lists in UTF-16
  • 771376 : video: Add top-field-first / bottom-field-first information to raw video caps if interlaced-mode=interleaved & proxy colorimetry in compressed caps too
  • 772445 : urisourcebin: minor enhancements
  • 772550 : urisourcebin: Fix minor typo and some FIXME list
  • 772832 : parsebin: Rename variables include 'decode' to 'parse'
  • 772864 : audioconvert: mask calculation optimization
  • 773073 : audioconvert: endian conversion optimization
  • 773102 : videotestsrc: Make snow deterministic
  • 773165 : videodecoder: add _allocate_output_frame_with_params() to pass custom GstBufferPoolAcquireParams [API]
  • 773341 : urisourcebin: Cleanup unused output slot
  • 773944 : meson: Generate girs
  • 774445 : meson: vorbis: Add -DTREMOR to flags for gstivorbisdec
  • 774454 : playbin3: remove dead code
  • 774484 : videodecoder, audiodecoder: parse format before checking in src_query_default
  • 774588 : video-info: Catch overflows in the video frame size calculation
  • 774728 : Subtitle showing as rectangular box in android platform
  • 774878 : tag: fix some warnings in mklicensestables
  • 774959 : rtpbuffer: fix ensure_buffers
  • 775310 : playbin: Fix caps memory leak in usage of gst_static_caps_get() API
  • 775369 : Audio distortion since commit 010b954 (regression)
  • 775917 : tests: Do not use 'auto-select-streams' property in playbin3 test app
  • 776038 : audioringbuffer: do not require 4 byte multiples for encoded audio
  • 776188 : encodebin: Fallback to other profile if we fail with one
  • 776447 : videotimecode: New GstVideoTimeCodeDiff type, ability to add to a GstVideoTimeCode
  • 776458 : urisourcebin: Always configure typefind
  • 777009 : urisourcebin: Never push actual EOS event to slot
  • 772764 : GstVideoTimeCode lacks GstValue functions


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

  • Arun Raghavan
  • Carlos Rafael Giani
  • Changbok Chea
  • Edward Hervey
  • Evan Nemerson
  • Garima Gaur
  • Guillaume Desmottes
  • Jan Alexander Steffens (heftig)
  • Jan Schmidt
  • Joris Valette
  • Julien Isorce
  • Marcin Kolny
  • Mark Nauwelaerts
  • Matthew Waters
  • Miguel Paris
  • Nicola Murino
  • Nicolas Dechesne
  • Nicolas Dufresne
  • Patricia Muscalu
  • Petr Kulhavy
  • Reynaldo H. Verdejo Pinochet
  • Scott D Phillips
  • Sebastian Dröge
  • Seungha Yang
  • Song Bing
  • Stian Selnes
  • Stuart Weaver
  • Thibault Saunier
  • Thomas Bluemel
  • Tim-Philipp Müller
  • Tobias Mueller
  • Tomasz Zajac
  • Ulf Olsson
  • Vincent Penquerc'h
  • Vineeth TM
  • Vivia Nikolaidou
  • Wonchul Lee
  • hoonhee.lee

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