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Release notes for GStreamer 1.0.1

The GStreamer team is proud 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.

The 1.x series has been reworked for more flexible memory handling, improved caps negotiation and re-negotiation, better handling of dynamic pipelines, and increased performance in general. It also features countless other feature additions and enhancements.

This module, gstreamer, only contains core functionality. For actual media playback, you will need other modules.

contains a basic set of well-supported plugins
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

  • Parallel installability with 0.10.x series
  • Capsfilter prefers filter caps over passthrough now
  • Application Development Manual, Plugin Writer's Guide and other documentation updated and extended for 1.0
  • Bug fixes

Bugs fixed in this release

  • 680862 : " identity " with single-segment=true gives buffer.pts of CLOCK_TIME_NONE
  • 684538 : baseparse: no timestamps after seeking in mp3 or aac
  • 684755 : typo - whithin > within
  • 684765 : Plugins without a klass in the metadata crashes autoaudiosink
  • 684809 : proxypad don't hold a ref to their internal pad while streaming through it
  • 684970 : Don't register printf extension for %p when glib is not using system printf
  • 684981 : Pipeline hangs on PREROLLING negotiating caps
  • 685072 : memory: map(READ)/unmap clears the READONLY status

API changes

  • API additions
    • gst_base_transform_set_prefer_passthrough ()


You can find source releases of gstreamer in the gstreamer 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 gstreamer 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

  • Jan Schmidt
  • Josep Torra Valles
  • Mark Nauwelaerts
  • Olivier Blin
  • Olivier Crête
  • Sebastian Dröge
  • Tim-Philipp Müller
  • Wim Taymans

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