RELEASE: GStreamer Core and Plugins 1.1.90

Andoni Morales ylatuya at
Fri Sep 20 11:28:02 BST 2013

2013/9/19 Sebastian Dröge <slomo at>

> The GStreamer team is pleased to announce the first release candidatefor
> the 1.2 release series. The 1.2 release series is adding new features on
> top of the 1.0 series and is part of the API and ABI-stable 1.x release
> series of the GStreamer multimedia framework that contains new features.
> The 1.x series is a stable series targeted at end users. It is not API
> or ABI compatible with the 0.10.x series. It can, however, be installed
> in parallel with the 0.10.x series and will not affect an existing
> 0.10.x installation.
> The 1.1 development releases will lead to the next stable 1.2.x release
> series, which will be API and ABI compatible with 1.0.x and any other
> 1.x release series in the future. Compared to 1.0.x it contains some new
> features and more intrusive changes that were considered too risky as a
> bugfix. The newly added API and ABI can still change until the 1.2.0
> release, as such distribution packagers should not include 1.1.x in
> their distributions but wait until 1.2.0.
> The versioning scheme that is used in general is that 1.x.y is API and
> ABI backwards compatible with previous 1.x.y releases. If x is an even
> number it is a stable release series and all releases in this series
> will only contain important bugfixes, e.g. the 1.0 series with 1.0.7. If
> x is odd it is a development release series that will lead to the next
> stable release series 1.x+1 and contains new features and bigger
> changes. During the development release series, new API can still
> change.
> Changes since 1.0:
> New API:
>  • GstContext negotiation / sharing / announcing for sharing a
>    generic context between elements, e.g. a display handle
>  • GL texture upload conversion meta for allowing different
>    buffer types to be converted to an OpenGL texture
>  • GstCapsFeatures as extension to GstCaps for allowing the
>    negotiation of specific memory or meta requirements between
>    elements
>  • GstMemory flags for contiguous and non-mappable memory
>  • The stream-start event has optional flags now, e.g. for signalling
>    sparse streams
>  • The stream-start even has an optional group-id field now to signal
>    all streams that should be played together
>  • Allocators library in gst-plugins-base, currently only with generic
>    dmabuf memory support
>  • insertbin library for easier handling of dynamically linked
>    pipelines (in -bad for now)
>  • EGL helper library (in -bad for now)
>  • MPEG-TS data structure library (in -bad for now)
>  • New GstVideoRegionOfInterestMeta to describe a region of interest on
>    video frames.
>  • GstVideoDecoder/Encoder has new ::flush() vfunc to replace the
>    ill-defined ::reset() vfunc.
>  • The URI query allows to query the redirected URI now.
> Major changes:
>  • New tool: gst-play-1.0 in gst-plugins-base for basic playback
>    testing on the command line.
>  • New plugins:
>    ∘ mssdemux for Microsoft Smooth Streaming
>    ∘ dashdemux for DASH adaptive streaming protocol
>    ∘ bluez for interaction with Bluetooth devices
>    ∘ openjpeg for JPEG2000 decoding and encoding
>    ∘ daala for experimental Daala decoding and encoding
>    ∘ vpx plugin has experimental V9 decoding and encoding support
>    ∘ webp plugin for WebP decoding (encoding to be added later)
>    ∘ Various others: yadif, srtp, sbc, fluidsynth, midiparse,
>      mfc, ivtv, accuraterip and audiofxbad
>  • Moved plugins:
>    ∘ dtmf, vp8rtp, scaletempo and rtpmux plugins are in
>      gst-plugins-good now
>  • Video:
>    ∘ Fix handling of interlaced video in converters such as videoscale
>      and videoconvert (e.g. scale both fields independently)
>    ∘ videoconvert will try harder to minimise quality losses when
>      conversion is necessary
>    ∘ The experimental GstSurfaceConverter, GstSurfaceMeta and
>      GstVideoContext APIs from the (confusingly-named)
>      libgstbasevideo-1.0 library in gst-plugins-bad have now been
>      removed and been replaced by new APIs in GStreamer Core and
>      gst-plugins-base (see above). Since that was all that was left in
>      this library, the entire experimental libgstbasevideo-1.0 library
>      has been removed from gst-plugins-bad
>    ∘ Chroma subsampling and chroma siting conversion is better handled
>      in videoconvert and the support for interlaced video was improved.
>    ∘ New pinwheel and spoke patterns in videotestsrc
>    ∘ videomixer can now accept different video formats on its sinkpads
>      and converts to a common format during mixing
>  • Audio:
>    ∘ adder now allows muting/unmuting of its input streams, and also
>      per-input stream volume
>    ∘ pulseaudio elements can switch between devices during playback now
>    ∘ aacparse can convert between ADTS←→RAW
>  • Platform specific changes:
>    ∘ Caps, events, etc. are now printed in the GStreamer debug logs
>      with their content instead of just the pointer address even on
>      non-glibc platforms (e.g. Windows, OSX, Android).
>    ∘ Network elements (UDP/TCP) now work better with platforms,
>      where IPv6 sockets can't handle IPv4 (e.g. Windows)
>    ∘ Windows: d3dvideosink provides a bufferpool to upstream elements

Hi Sebastian,

IIRC the bufferpool for d3dvideosink is for now disabled.


>    ∘ Linux/BSD: v4l2 had many improvements and cleanups
>  • Other changes:
>    ∘ gst-libav now uses libav 9
>    ∘ Static linking of plugins is supported now (also in 1.0.7)
>    ∘ rtspsrc: add support for NetClientClock: when the server suggests a
>      GstNetTimeProvider in the SDP, set up a GstNetClientClock that
>      slaves to the remote clock and suggest this clock in provide_clock.
>      Simplifies synchronized playback of a resource from an RTSP server.
>      gst-rtsp-server now supports adding this to the SDP and can provide
>      a network clock
>    ∘ RTP retransmission / NACK support and big RTP jitterbuffer
> improvements
>    ∘ SRTP and DTLS support
>    ∘ Changes to many elements and core to use the correct sticky event
>      order and also not lose any important sticky events during flushing
>    ∘ >1000 fixed bug reports, and many other bug fixes and other
>      improvements everywhere that had no bug report
> Things to look out for:
>  • Single header includes for all libraries, e.g. #include
>    <gst/video/video.h> - this was needed for some bindings.
>  • Stricter (correct) caps subset checking in some cases where this was
>    not correct before. Caps will now always fail to be a compatible
>    subset of another set of caps if the subset caps are missing some
>    fields that the superset caps have. This might lead to not-negotiated
>    errors if caps are incomplete now. However, it also prevents possible
>    data corruption caused by piping data formatted in an
>    incompatible/unexpected way into some elements. Check your h264 caps
>    for stream-format and alignment fields and AAC caps for the
>    stream-format field. This change will also be included in the next
>    stable 1.0.8 release.
>  • Stricter checking for missing events and correct sticky event order
>    (stream-start, caps, segment) in some places; this is not enabled in
>    stable releases by default, but you may get warnings when using git
>    builds, development releases or when compiling with
>  • x264enc now outputs data in byte-stream by default if downstream has
>    ANY caps (e.g. appsink without caps set, filesink, udpsink,
>    tcpserversink etc.)
>  • The MPEG TS demuxer posts messages contain the PMT, PAT, etc. in a
>    different format now. This new format uses the data structures from
>    the new MPEGTS library
>  • The GstContext API has changed between 1.1.4 and 1.1.90
> Release tarballs can be downloaded directly from:
> b38e9cb70e4d20f9b17d2421da639eafe17dd917f7a32aaac3807ade3c165813 gstreamer-1.1.90.tar.xz
> c015fb8a6206fdff645b4ac63e080a3c1fff39e8747717cb17886d1ebe1d2a75 gst-plugins-base-1.1.90.tar.xz
> b113cf39d96c5977fbe1eef9c3ce05f5b4be797038fdb1f91971e0cbe6f78197 gst-plugins-good-1.1.90.tar.xz
> d9a1a45ae9f1bca700586e0aca8649fbb7ab182df7d3fb334fde7ff85a70923e gst-plugins-bad-1.1.90.tar.xz
> 316f315a5b6555c89c877ae0ba42e68ca82561bd951e2cb20c36be01cc84731d gst-plugins-ugly-1.1.90.tar.xz
> 3a7bb28209cc6d1aa6e1de71cb05664ad29f57c4d0564717a52d3f069f3f6aa4 gst-libav-1.1.90.tar.xz
> As always, please let us know of any issues you run into by filing a bug
> in Bugzilla:
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at

Andoni Morales Alastruey

LongoMatch:The Digital Coach
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