RELEASE: GStreamer Base Plug-ins 0.10.33 "Relaxing Distractions"

This mail announces the release of GStreamer Base Plug-ins 0.10.33 "Relaxing Distractions".

GStreamer Base Plug-ins is a well-groomed and well-maintained collection
of GStreamer plug-ins and elements, spanning the range of possible types
of elements one would want to write for GStreamer.  It also contains
helper libraries and base classes useful for writing elements. A wide
range of video and audio decoders, encoders, and filters are included.

Highlights of this release:

  - support for 16-bit-per-component video formats
  - playbin2 fixes and improvements for custom and non-raw sinks
  - oggmux muxes based on running time now
  - orc 0.4.14 or newer recommended
  - many other fixes and improvements

For more information, see

To report bugs, request features or submit patches, please go to

Direct links:

MD5 sums (for tarballs downloaded from
5a9701bd55a9bb7e0d0a486be5a57ee5  gst-plugins-base-0.10.33.tar.gz
8120aa48802eff56987a65f5bf1f8911  gst-plugins-base-0.10.33.tar.bz2


Release notes for GStreamer Base Plug-ins 0.10.33 "Relaxing Distractions"

The GStreamer team is proud to announce a new release
in the 0.10.x stable series of the
GStreamer Base Plug-ins.

The 0.10.x series is a stable series targeted at end users.
It is not API or ABI compatible with the stable 0.8.x series.
It is, however, parallel installable with the 0.8.x series.

This module contains a set of reference plugins, base classes for other
plugins, and helper libraries.

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, gnomevfssrc, giosrc
  network: tcp
  typefind functions
  audio processing: audioconvert, adder, audiorate, audioresample, volume
  visualisation: libvisual
  video processing: ffmpegcolorspace
  aggregate elements: uridecodebin, playbin2, decodebin2, decodebin, playbin, encodebin
  libraries: app, audio, cdda, fft, interfaces, netbuffer, pbutils, riff, rtp, rtsp, sdp, tag, video

Other modules containing plug-ins are:

contains a set of well-supported plug-ins under our preferred license
contains a set of well-supported plug-ins, but might pose problems for
contains a set of less supported plug-ins that haven't passed the
    rigorous quality testing we expect


Features of this release
      * audioringbuffer: make sure to not start if the may_start flag is FALSE
      * baseaudiosink: arrange for running clock when rendering eos
      * baseaudiosink: don't allow aligning behind the read-segment
      * baseaudiosink: start ringbuffer upon going to PLAYING and already EOS
      * riff: Add support for video/x-camstudio
      * rtcpbuffer: fix invalid read in validation of padding in rtcp packet
      * rtcpbuffer: Round to next 32bit word, not current 32bit word at end of SDES chunk
      * rtpbuffer: Off-by-one error when creating RTP header extensions with a two-byte header
      * rtsptransport: ensure valid int result when parsing ranges
      * tag: map the ID3v2 TENC frame to GST_TAG_ENCODED_BY
      * tag: add a new GstTagXmpWriter interface to select XMP schemas to be used
      * tagdemux: also push cached events downstream when operating in pull mode
      * video: add GST_VIDEO_BUFFER_PROGRESSIVE flag
      * video: add ARGB64 and AYUV64 (16 bits per channel) formats
      * video: add r210 (10 bits per channel) format
      * video: add gst_video_format_get_component_depth() and _new_template_caps()
      * video: fix creation of grayscale caps and height calculation for YUV9/YVU9
      * appsink: emit "new-buffer-list" signal for buffer lists if handled by app
      * audiorate: add "skip-to-first" property
      * decodebin2: don't use the same parser element multiple times in the same chain
      * decodebin2: improve detection of raw caps in expose-all-streams=false mode
      * discoverer: don't wait for subtitle streams to preroll; leak fixes
      * discoverer: use nominal bitrate if bitrate tag is unavailable
      * encodebin: add an audioconvert after the audio resampler
      * encodebin: fix refcounting issues and leaks related to request pads
      * encodebin: return a new reference of the pad for the "request-pad" signal
      * encodebin: set all elements to NULL and remove them from the bin when removing a source group
      * encodebin: tear down old profiles when setting new ones
      * multifdsink: disconnect inactive clients in the select loop too
      * oggmux: prefer headers from caps to determine stream type (for VP8)
      * oggmux: fix issue with ogg page numbering and discont flag handling
      * oggmux: ensure stream serial numbers are unique
      * oggmux: use running time for muxing instead of timestamps
      * oggparse: better detection of delta unit flag
      * playbin2, uridecodebin: add "source-setup" signal
      * playbin2: always prefer the custom set sink and also set it back to NULL in all cases
      * playbin2: check if an already existing sink supports the non-raw format too
      * playbin2: fix handling of non-raw custom sinks
      * playbin2: if a sink claims to support ANY caps assume that it only supports the usual raw formats
      * playbin2: only consider the audio/video sinks in autoplug_continue for the normal uridecodebin
      * playbin2: use gst_pad_accept_caps() instead of intersecting with the getcaps caps
      * playbin2: set sinks to READY before checking if it accept caps
      * textoverlay: add support for ARGB and other RGB alpha variants, and xBGR and RGBx
      * textoverlay: add support for vertical center alignment
      * textoverlay: converted AYUV to use 'A OVER B' alpha compositing
      * textoverlay: use a class wide mutex to work around pango reentrance issues
      * theoraenc: don't reset the video quality when setting the bitrate
      * theoraenc: allow adjustment of the speed level while running
      * theoraenc: set speed-level property defaults from libtheora's defaults
      * typefinding: MPEG-TS detection fixes
      * typefinding: detect HTTP live streaming m3u8 playlists
      * typefinding: detect windows icon files and DEGAS images (to avoid false positives)
      * typefinding: detect raw h.263
      * typefinding: add depth and endianness fields to DTS caps
      * uridecodebin: Add default handler for autoplug-select
      * uridecodebin: add https:// to protocols for which to enable buffering
      * uridecodebin: expose "autoplug-sort" signal
      * uridecodebin: post proper error message if decodebin2/typefind elements are missing
      * uridecodebin: Return NULL from the default autoplug-sort handler
      * videorate: fix "skip-to-first" timestamp setup
      * videoscale: add 16-bit-channel support (ARGB64, AYUV64), fix ARGB bilinear scaling
      * videotestsrc: add 16-bit-per-channel support (ARGB64, AYUV64)
      * vorbis: add support for using tremolo on android
      * vorbistag: Add support for METADATA_BLOCK_PICTURE tags
      * win32: fix DEFAULT_AUDIOSINK, should be direct*sound*sink
      * xvimagesink: don't paint the window black when going to NULL

Bugs fixed in this release
      * 618516 : [typefinding] need raw H.263 typefinder
      * 619778 : oggdemux: fails on zero-length pages with Patent_Absurdity_HD_3540kbit.ogv
      * 633837 : videoscale: invalid reads after conversion to orc linear scaling
      * 412678 : random segfaults or memory corruptions with multiple textoverlays (pango not reentrant)
      * 620364 : [typefinding] .ico file detected as AAC
      * 625129 : typefinding: file incorrectly detected as audio/x-dts
      * 626152 : [playbin2] add " source-setup " signal
      * 627268 : [tag] add GST_TAG_ENCODED_BY and map id3v2 TENC frame
      * 629196 : oggmux: re-tagging an Ogg Vorbis file may corrupt audio data
      * 632291 : discoverer: sparse tracks cause prerolling to hang till timeout
      * 632889 : [multifdsink] [PATCH] Disconnect inactive clients in the select loop too
      * 635669 : [vorbistag] Support METADATA_BLOCK_PICTURE for Vorbis cover art
      * 635784 : ringbuffer: make sure to not start if the may_start flag is FALSE
      * 635800 : xvimagesink flashes black when going from READY_TO_NULL
      * 636886 : baseaudiosink: no running clock when eos leads to hang in PLAYING
      * 639136 : [oggparse]code is not safe when using libogg fuctions
      * 639159 : [textoverloay] Add vertical center alignment option
      * 639237 : textoverlay: patch to use " A OVER B " alpha compositing
      * 639744 : [oggdemux] Removing dead code:
      * 640189 : oggmux: cleanup
      * 640211 : oggmux: ensure serialnos are unique
      * 640607 : appsink never sends " new-buffer-list " signal
      * 640709 : [typefindfunctions] h264 typefinder registered with MPEG_VIDEO_CAPS
      * 640804 : checks: encodebin test fails if theora or vorbis plugins are not available
      * 641706 : discoverer: Keep references on discoverer objects for callbacks
      * 641860 : discoverer: Use nominal bitrate if bitrate tag is unavailable
      * 641917 : [gdppay] Ensure buffer's medata is writeable before setting it
      * 641927 : [encodebin] refcount issue with the " request-pad " signal
      * 641952 : [videoscale] assertion on fixate_caps
      * 642174 : Playbin2 cannot work with non-raw custom sinks
      * 642232 : theoraenc sets Video quality to zero when explicitely setting the bitrate to 0
      * 642274 : [playbin2] arbitrary audio-sink is chosen even though explicitely having set a custom audio-sink bin
      * 642381 : potential memleak in decodebin2
      * 642466 : playbin2: after replacing a video sink with the pipeline in NULL state I still get the old one
      * 642720 : audiotestsrc: pipelines with multiple instances with wave=gaussian-noise, white-noise, or pink-noise are very slow
      * 642942 : adder: offset_end field of outgoing buffers is set to GST_BUFFER_OFFSET_NONE
      * 642949 : pbutils: encoding-target: chaining error object in loading target from file may cause crash if there is no error
      * 643775 : [oggmux] use running time instead of timestamps
      * 644416 : [encodebin] Cannot be reused
      * 644745 : [oggmux] Fails to mux Speex content, doesn't preroll
      * 644845 : [alsa] Comparison of unsigned int < 0 always false in gstalsamixer.c
      * 644996 : libsABI check doesn't depend only on architecture
      * 645167 : [xmp] Add a new XmpConfig interface
      * 645437 : encoding-profile: Fix syntax in Example: Creating a profile
      * 646570 : baseaudiosink: don't allow aligning behind the read-segment
      * 646572 : baseaudiosrc: protect against ringbuffer disappearing while in a query
      * 646573 : baseaudiosrc: Add src object lock around call to ringbuffer parse caps
      * 646575 : rtcpbuffer: Round to next 32bit word, not current 32bit word at end of SDES chunk
      * 646576 : rtcpbuffer: fix invalid read in validation of padding in rtcp packet
      * 646923 : video: Remove unused variable
      * 646924 : rtp: Remove unused variables
      * 646925 : encoding-profile: Remove unused variables
      * 646952 : Fix the strlol return type mismatch :
      * 647399 : Bad typo in ID3 tags: psychadelic - > psychedelic
      * 647721 : Remove excessive checking for video.c
      * 647781 : [playbin2] missing shutdown steps and inconsistent error behaviour
      * 647856 : [oggmux] Assumes that the first buffer can be used to detect the stream type
      * 647857 : [xvimagesink/ximagesink] Handle NULL caps in buffer_alloc()
      * 647942 : [pango] Use different Pango contexts for the different subclasses
      * 647943 : [pango] Class global pango mutex not always used
      * 648459 : tag: exif: register common tags from tag library
      * 648466 : Ogg to LPCM transcoding fails
      * 648548 : videoscale broken with orc 0.4.13
      * 642667 : [playbin2] autoplug-factories code does not do what it claims to do
      * 642732 : [playbin2] sinks set to READY after activating groups causes bad autoplug-continue decisions
      * 646744 : libgsttag: Minor issues building gst-plugins-base with MS compiler
      * 647294 : gst-plugins-base doesn't compile with GCC 4.6

API changed in this release
- API additions:
      * gst_tag_list_to_xmp_buffer_full()
      * gst_tag_xmp_list_schemas()
      * gst_tag_xmp_writer_add_all_schemas()
      * gst_tag_xmp_writer_add_schema()
      * gst_tag_xmp_writer_get_type()
      * gst_tag_xmp_writer_has_schema()
      * gst_tag_xmp_writer_remove_all_schemas()
      * gst_tag_xmp_writer_remove_schema()
      * gst_tag_xmp_writer_tag_list_to_xmp_buffer()
      * gst_video_format_get_component_depth()
      * gst_video_format_new_template_caps()


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

GStreamer Homepage

More details can be found on the project's website:

Support and Bugs

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


GStreamer is stored in Git, hosted at, and can be cloned from there.
Interested developers of the core library, plug-ins, and applications should
subscribe to the gstreamer-devel list. If there is sufficient interest we
will create more lists as necessary.

Contributors to this release
      * Akihiro Tsukada
      * Alessandro Decina
      * Andoni Morales Alastruey
      * Arun Raghavan
      * Bastien Nocera
      * Benjamin Otte
      * Blaise Gassend
      * Cai Yuanqing
      * Christian Fredrik Kalager Schaller
      * David Schleef
      * Edward Hervey
      * Felipe Contreras
      * Fraxinas
      * Haakon Sporsheim
      * Havard Graff
      * Håvard Graff
      * Josep Torra
      * Lane Brooks
      * Leo Singer
      * Luis de Bethencourt
      * Marc Plano-Lesay
      * Mark Nauwelaerts
      * Mart Raudsepp
      * Ole André Vadla Ravnås
      * Olivier Crête
      * Parthasarathi Susarla
      * Pascal Buhler
      * Philippe Normand
      * Ralph Giles
      * Robert Swain
      * Sebastian Dröge
      * Sjoerd Simons
      * Sreerenj Balachandran
      * Stefan Kost
      * Stian Johansen
      * Teemu Katajisto
      * Thiago Santos
      * Thibault Saunier
      * Tim-Philipp Müller
      * Trond Andersen
      * Vincent Penquerc'h
      * Víctor Manuel Jáquez Leal
      * Wim Taymans
      * Yang Xichuan
      * tskd2 yahoo co jp

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