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Release notes for GStreamer Base Plug-ins 0.10.36 "Better"

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

Features of this release

  • audio: new IEC 61937 payloading library
  • audio: new GstAudioFormat, GstAudioFormatInfo and GstAudioInfo API
  • audio: new GstAudioDecoder and GstAudioEncoder base classes
  • audio: baseaudiosink: allow subclasses to provide payloaders
  • audio: baseaudiosink: fix latency calculation for live elements
  • audio: baseaudiosink: make discont-wait configurable
  • audio: baseaudiosink: split "drift-tolerance" into "alignment-threshold"
  • codec-utils: Add method to convert H.264 text level in a level_idc
  • discoverer: add support for subtitles; try harder to extract language and duration
  • encoding-profile: add function to create a profile from a discoverer info
  • ringbuffer: add support for AAC, DTS, E-AC3 and MPEG audio buffers
  • rtcpbuffer: Add feedback message types from RFC 510
  • rtcpbuffer: prevent overflow of 16bit header length
  • rtspconnection: make hostname lookup thread-safe; OSX portability fixes
  • rtspconnection: only send new data immediately if there are no queued messages
  • tags: add new GstTagMux base class
  • tags: add convenience API to handle creative commons licenses
  • tags: add API to parse ID3v2 tags
  • tags: various exif and xmp tag writing fixes
  • tags: xmp: add Iptc4xmpExt schema support
  • tags: gstvorbistag: map ENCODER Vorbis comment to application-name
  • video: add video overlay composition API for subtitles
  • video: fix a RGB ordering mixup in colorspace conversion code
  • alsasink: fix high sample rates being rejected, and negotiation to "nearest" rate
  • audioresample: don't emit DISCONT buffers if no discontinuity happened
  • audioresample: fix quality setting being ignored; use SSE/SSE2 when possible
  • audiotestsrc: add red (brownian) and blue/violet noise generator
  • cdparanoiasrc: fix build issue on OSX (caused by broken cdparanoia port and broken system headers)
  • decodebin2: improve handling of multi-stream chains (e.g. mpeg-ts)
  • decodebin2: Cache the upstream seekability for demuxer decode chains and use it for the non-preroll multiqueue limits
  • decodebin2: add support for autoplugging parsers and parser-converters, and negotiate stream-format conversions properly as needed
  • decodebin2: link elements before testing if they can reach the READY state, so allow hw-accelerated elements can query the video context
  • decodebin2: use a TIME limit for pre-rolling in live streams and not in non-live streams
  • decodebin2: fix preroll for HLS streams at low bitrates
  • decodebin2: add source pads to stream-topology element messages
  • decodebin, decodebin2: don't plug the same parser multiple times in a row, so we can make parsers accept parsed input as well (and use them to convert to different stream formats)
  • encodebin: add flags to disable conversion elements
  • encodebin: autoplug formatters; re-enable parsers
  • gnomevfssrc: add support for cancelling read operations
  • oggdemux, oggmux: add support for new Opus audio codec
  • oggdemux: implement push mode seeking (e.g. for http)
  • oggdemux: assume input is live stream if byte size cannot be determined
  • oggdemux: fix hang on small truncated files
  • oggmux: add skeleton write support
  • oggmux: sync input streams and select input buffers based on running time
  • oggmux: headers should always have granpos 0
  • oggmux: refactor how EOS is determined
  • oggmux: support sparse streams as input (e.g. kate subtitle streams)
  • playbin2: fix decoder-sink compatibility check for raw audio/video formats
  • playbin2: make sure that the decoders we plug are compatible with the fixed sink
  • playsink: Add audio and video converter convenience bins
  • playbin2: improve stream switching
  • playbin2/playsink: Decide if A/V caps are raw only inside playsink
  • playbin2/playsink: better support for raw + compressed streams (audio passthrough)
  • playbin2/playsink: improve handling of "non-raw" formats (for hw-accelerated video decoding)
  • playsinkconvertbin: Reconfigure if we switch from raw to incompatible raw caps
  • subparse: subtitle format typefinding improvements
  • subtitleoverlay: handle non raw video streams (add suport for hardware accelerated videos)
  • textoverlay: support more video formats
  • textoverlay: add "outline-color" and "shadow" properties
  • textoverlay: attach GstVideoOverlayComposition to buffers if input is not raw video
  • theoraenc: do not automatically override quality when using target bitrate
  • theoraenc: proxy downstream caps restrictions upstream
  • typefinding: extract SOF marker in jpeg typefinder (to distinguish lossless JPEG)
  • typefinding: add typefinder for WAP WBMP bitmaps (mostly to avoid false positives)
  • typefinding: typefind UTF-16 and UTF-32 with BOMs (to avoid false positives)
  • typefinding: recognize Asylum modules
  • videorate: add a "max-rate" property; optionally ensure maximum average output frame rate
  • videorate: add "force-fps" property to force an output framerate or change it on the fly
  • videorate: optionally only drop frames to ensure maximum frame rate
  • videoscale: add modified Lanczos scaling method
  • volume: Fix handling of volume>=4.0 for 8 and 16 bit integer formats
  • vorbisenc: relax overly tight jitter tolerances (make it work better with non-perfect input streams)
  • xvimagesink, ximagesink: fall back to non-XShm mode if allocating the XShm image failed

Bugs fixed in this release

  • 643202 : [encodebin] streamcombiner not completely implemented
  • 654270 : oggmux unit test fails after latest changes
  • 658984 : Fix typos in gst-plugins-base
  • 555437 : [tag] add GstTagMux base class
  • 556648 : [typefind] detect lossless jpeg
  • 563251 : oggmux should have option to create Ogg Skeleton stream
  • 584811 : playbin2's get-text-tags sometimes fails in text stream 0
  • 607619 : [typefind] utf-16 text file mistakenly identified as layer 1 mpeg audio
  • 607742 : API: add gst_event_new_{upstream,downstream}_force_key_unit() etc.
  • 609918 : [OS X] configure: cdda_interface.h: present but cannot be compiled (if VERSION is defined)
  • 610443 : baseaudiosink: clock can jump on setcaps
  • 612443 : oggdemux: only use information from skeleton if we have nothing better
  • 615131 : playing an ogg over http does not report duration correctly
  • 615342 : [gstalsamixer] leaks
  • 621897 : [oggdemux] reports wrong duration, and push mode seeking support
  • 628337 : [gnomevfssrc] Add support for cancelling read operations
  • 628764 : [videorate] add new option for max frame rate
  • 629212 : [oggdemux] Improve support for push mode (seeking, duration)
  • 630322 : make seek example work with windows
  • 630442 : xvimagesink, ximagesink: fallback to X*CreateImage() if X*ShmCreateImage() fails
  • 630497 : [seek] sprinkle GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS to dump pipeline to dot file
  • 632788 : [playbin2] Doesn't support files with a streams that are supported compressed by a sink and streams that need decoding
  • 635556 : [oggdemux] bad duration estimate in streaming mode with vertical-overview.ogg
  • 637812 : vorbisenc: choppy sound due to input timestamp jitter
  • 638897 : [textrender] allow setting the canvas size using peer caps + bugfixes
  • 639055 : discoverer: add support for subtitle streams
  • 640041 : textoverlay: Added parameters to control text outline color and whether shadowing is enabled
  • 640564 : Remuxing a Theora stream generates a stream that oggz-validate complains about
  • 640859 : basesink incorrectly categorizes timestamp jitter as drift
  • 642690 : [baseaudio] GstBaseAudioEncoder and GstBaseAudioDecoder class
  • 642878 : encoding-profile: add a function to create a profile from a discoverer info
  • 643578 : [encodebin] - broken remuxing
  • 644284 : Suspicious max_latency computation in gstbaseaudiosink.c
  • 647648 : videorate: support for caps modifications in a running pipeline
  • 647769 : [decodebin2] Fix preroll for streams at low bitrate
  • 649319 : Add boiler plate code to xvimagesink
  • 649642 : [volume] Overflows with volume > =4.0 and 8/16 bit integer formats
  • 649969 : [audiotestsrc] Add more noise variants
  • 650406 : vorbisdec does not handle headers in caps
  • 651089 : [xvimagesink/ximagesink] Remove g_assert from Interface query
  • 651294 : WBMP images are not supported by typefind
  • 651496 : encodebin seems to fail to pick up container variant
  • 651615 : [vorbisenc] Too small jitter tolerance
  • 651788 : [theoraenc] separate encode and push block in theora_enc_chain
  • 651855 : elements/volume unit test fails
  • 652342 : encoding-target: set name on audio and video profiles when reading from keyfile
  • 652642 : typefind: NULL check in degas_type_find
  • 652838 : gst_discoverer_discover_uri Allow NULL GError* argument
  • 653461 : [theoraenc] element causes encoder to drop frames?
  • 654295 : [typefind] audio/x-sap detection doesn't work
  • 654434 : [basertppayload] RTP timestamps not longer reproducible
  • 654959 : textoverlay would flicker if it receives not timestampes text on input
  • 655244 : encodebin has to provide the downstream possible caps to h264parse
  • 655268 : decodebin2: deadlock after multi-stream chains change
  • 655279 : [playbin2] Don't reset sinks when not needed
  • 655347 : theoradec: segfault on 0-byte ogg_packet in _chain_reverse
  • 655503 : pbutils: Add MPEG-4 SP levels 4a, 5 and 6
  • 655574 : ogg: crash determining duration of empty vorbis packet
  • 656022 : volume: fix sample depth typo
  • 656034 : gstvorbistag: map ENCODER Vorbis comment to application-name
  • 656392 : audioresample: add FFT based checks
  • 656715 : playbin2, playsink: reference count ts_offset to avoid crashes
  • 656775 : oggmux: various cleanups
  • 656781 : resample.c has warnings treated as errors that prevent compilation
  • 657049 : textoverlay: buffer leaks
  • 657062 : oggdemux: do not skip sparse streams when determining start times
  • 657151 : ogg: another cleanup round
  • 657257 : discoverer: retrieve audio track language from tags too
  • 657261 : resindvd: regression in git: no more button highlights in menus
  • 657319 : videorate should use basetransform
  • 657333 : theoraenc: fix caps leak
  • 657504 : gtk-doc distcheck failure: files left in build directory after distclean:
  • 657872 : [subparse] Doesn't detect some SRT subtitle files
  • 658294 : gst-inspect videorate hangs
  • 658416 : decodebin2: refcounting bugs causing criticals
  • 658443 : theoraenc: do not automatically override quality when using target bitrate
  • 658514 : typefinding: recognize .amf (Asylum Music File) files for modplug
  • 658609 : Handle subtitles with non raw caps video streams in subtitle overlay
  • 658846 : Playbin2 pipeline stuck while prerolling if decoder is missing
  • 658901 : textoverlay: crash when the video sink pad has no parent
  • 659562 : videorate: gst_mini_object_unref: assertion `GST_IS_MINI_OBJECT (mini_object)' failed
  • 660150 : baseaudio: compiler warnings if debugging system is disabled
  • 660170 : alsasrc: broken timestamps lead to alsasrc ! audiorate endless loop
  • 660301 : playbin2: Fix mingw compiler warnings
  • 660304 : videotestsrc: Fix mingw compiler warning
  • 660598 : playbin2: Make sure that elements that are plugged are compatible with the fixed sink
  • 660604 : textoverlay: add YV12 support
  • 660816 : dvd menus got broken
  • 661105 : audiotestsrc: add missing break
  • 661106 : tests: actually test what we said we would
  • 661122 : videotestsrc does not build on Solaris
  • 661202 : decodebin2: fire drained signal where appropriate
  • 661738 : Deadlock between threads in gstaudiosink and gstringbuffer
  • 661897 : oggdemux: do not retry seeking indefinitely
  • 661983 : Regression: Reverse playback does not work for vorbis
  • 662049 : oggdemux/oggmux in push mode cause preroll to wedge
  • 662108 : Assertion in base audio decoder when decoding vorbis
  • 662330 : [decodebin2] Should link and add elements to the bin before checking if they can reach READY state
  • 662475 : oggdemux: Improvements on the push mode seeking algorithm.
  • 662829 : [textoverlay] - silent property looks not well implemented
  • 663174 : oggmux: set collectpads2 not to wait on sparse streams
  • 663312 : decodebin2: Post all source pads in stream-topology messages as " element-srcpad " values
  • 663390 : theoraenc: fix speed level failure test
  • 663391 : theoraenc: misc small tweaks
  • 663465 : baseaudiosink: fix late buffers leaking
  • 663766 : [0.11] oggmux: split request pad templates into audio/video/subtitle
  • 663892 : [playbin2] visualisation leads to not-negotiated error
  • 663893 : playbin2: g_object_set_valist: construct property " use-volume " for object `GstPlaySinkAudioConvert' can't be set after construction
  • 664818 : Autoplugger sink bin receives strange caps while it gets the correct ones in 0.10.35 and earlier
  • 665004 : audioresample emits spurious disconts
  • 665074 : [gstfft] headers are not bracketed
  • 665080 : API: subtitle overlays for raw and non-raw video buffers
  • 665120 : playbin2: decoder not selected for audio-sink=autoaudiosink
  • 666395 : playbin2: set uri to a non-existed file in " about-to-finish " causes a CRITICAL warning
  • 667210 : videotestsrc/generate_sine_table needs to link against glib
  • 667306 : discoverer: don't use unportable vararg macro
  • 667311 : fix various unlikely, but still potential memoryleaks
  • 667312 : appsrc: implement get_caps
  • 667313 : rtcpbuffer: prevent overflow of 16bit header length.
  • 667315 : videotestsrc: keep the calculation fixed-point
  • 667316 : pango: Changes includes from brackets to quotes for local files
  • 667917 : alsasink: Rate doesn't match (requested 88200Hz, get 0Hz)
  • 668097 : [subtitleoverlay] fix state change stall on PAUSED- > READY- > PAUSED (patch)
  • 669039 : gstrtspconnection: new data may get sent even-though there is a queued message in the GstRTSPWatch
  • 669164 : oggdemux generates invalid granpos which causes asserts in theoraparse
  • 669167 : vorbisparse drops certain data buffers on the floor mistakenly thinking they're headers
  • 669203 : playbin2: totem segfaults in gst_stream_get_other_pad_from_pad()
  • 646868 : tag: Provide Creative Commons helper functions
  • 654388 : [tags] API: move id3 parsing from id3demux to tag lib
  • 311486 : [oggmux] theora bos must come before any audio bos pages

API changes

  • API additions
    • gst_audio_decoder_finish_frame()
    • gst_audio_decoder_get_audio_info()
    • gst_audio_decoder_get_byte_time()
    • gst_audio_decoder_get_delay()
    • gst_audio_decoder_get_drainable()
    • gst_audio_decoder_get_latency()
    • gst_audio_decoder_get_max_errors()
    • gst_audio_decoder_get_min_latency()
    • gst_audio_decoder_get_needs_format()
    • gst_audio_decoder_get_parse_state()
    • gst_audio_decoder_get_plc()
    • gst_audio_decoder_get_plc_aware()
    • gst_audio_decoder_get_tolerance()
    • gst_audio_decoder_get_type()
    • gst_audio_decoder_set_byte_time()
    • gst_audio_decoder_set_drainable()
    • gst_audio_decoder_set_latency()
    • gst_audio_decoder_set_max_errors()
    • gst_audio_decoder_set_min_latency()
    • gst_audio_decoder_set_needs_format()
    • gst_audio_decoder_set_plc()
    • gst_audio_decoder_set_plc_aware()
    • gst_audio_decoder_set_tolerance()
    • gst_audio_encoder_finish_frame()
    • gst_audio_encoder_get_audio_info()
    • gst_audio_encoder_get_drainable()
    • gst_audio_encoder_get_frame_max()
    • gst_audio_encoder_get_frame_samples_max()
    • gst_audio_encoder_get_frame_samples_min()
    • gst_audio_encoder_get_hard_min()
    • gst_audio_encoder_get_hard_resync()
    • gst_audio_encoder_get_latency()
    • gst_audio_encoder_get_lookahead()
    • gst_audio_encoder_get_mark_granule()
    • gst_audio_encoder_get_perfect_timestamp()
    • gst_audio_encoder_get_tolerance()
    • gst_audio_encoder_get_type()
    • gst_audio_encoder_merge_tags()
    • gst_audio_encoder_proxy_getcaps()
    • gst_audio_encoder_set_drainable()
    • gst_audio_encoder_set_frame_max()
    • gst_audio_encoder_set_frame_samples_max()
    • gst_audio_encoder_set_frame_samples_min()
    • gst_audio_encoder_set_hard_min()
    • gst_audio_encoder_set_hard_resync()
    • gst_audio_encoder_set_latency()
    • gst_audio_encoder_set_lookahead()
    • gst_audio_encoder_set_mark_granule()
    • gst_audio_encoder_set_perfect_timestamp()
    • gst_audio_encoder_set_tolerance()
    • gst_audio_iec61937_frame_size()
    • gst_audio_iec61937_payload()
    • gst_audio_info_clear()
    • gst_audio_info_convert()
    • gst_audio_info_copy()
    • gst_audio_info_free()
    • gst_audio_info_from_caps()
    • gst_audio_info_init()
    • gst_audio_info_to_caps()
    • gst_base_audio_sink_get_alignment_threshold()
    • gst_base_audio_sink_get_discont_wait()
    • gst_base_audio_sink_set_alignment_threshold()
    • gst_base_audio_sink_set_discont_wait()
    • gst_codec_utils_h264_get_level_idc()
    • gst_discoverer_audio_info_get_language()
    • gst_discoverer_info_get_subtitle_streams()
    • gst_discoverer_subtitle_info_get_language()
    • gst_discoverer_subtitle_info_get_type()
    • gst_encoding_profile_from_discoverer()
    • gst_tag_get_license_description()
    • gst_tag_get_license_flags()
    • gst_tag_get_license_jurisdiction()
    • gst_tag_get_license_nick()
    • gst_tag_get_license_title()
    • gst_tag_get_license_version()
    • gst_tag_get_licenses()
    • gst_tag_license_flags_get_type()
    • gst_tag_get_id3v2_tag_size()
    • gst_tag_list_from_id3v2_tag()
    • gst_tag_mux_get_type()
    • gst_video_buffer_get_overlay_composition()
    • gst_video_buffer_set_overlay_composition()
    • gst_video_event_is_force_key_unit()
    • gst_video_event_new_downstream_force_key_unit()
    • gst_video_event_new_upstream_force_key_unit()
    • gst_video_event_parse_downstream_force_key_unit()
    • gst_video_event_parse_upstream_force_key_unit()
    • gst_video_get_size_from_caps()
    • gst_video_overlay_composition_add_rectangle()
    • gst_video_overlay_composition_blend()
    • gst_video_overlay_composition_copy()
    • gst_video_overlay_composition_get_rectangle()
    • gst_video_overlay_composition_get_seqnum()
    • gst_video_overlay_composition_get_type()
    • gst_video_overlay_composition_make_writable()
    • gst_video_overlay_composition_n_rectangles()
    • gst_video_overlay_composition_new()
    • gst_video_overlay_rectangle_copy()
    • gst_video_overlay_rectangle_get_pixels_argb()
    • gst_video_overlay_rectangle_get_pixels_unscaled_argb()
    • gst_video_overlay_rectangle_get_render_rectangle()
    • gst_video_overlay_rectangle_get_seqnum()
    • gst_video_overlay_rectangle_get_type()
    • gst_video_overlay_rectangle_new_argb()
    • gst_video_overlay_rectangle_set_render_rectangle()

Download

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 git.freedesktop.org .

Homepage

The project's website is https://gstreamer.freedesktop.org.

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).

There is also a #gstreamer IRC channel on the Freenode IRC network.

Developers

Git is hosted on git.freedesktop.org. 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.

Applications

Contributors to this release

  • Age Bosma
  • Alessandro Decina
  • Alex Lancaster
  • Alexey Fisher
  • Andoni Morales Alastruey
  • Anssi Hannula
  • Benjamin Otte
  • Brian Cameron
  • Christian Fredrik Kalager Schaller
  • Christophe Fergeau
  • Colin Walters
  • David Schleef
  • Edward Hervey
  • Erich Schubert
  • Felipe Contreras
  • Havard Graff
  • Iago Toral
  • Idar Tollefsen
  • James "Doc" Livingston
  • James Doc Livingston
  • Jan Schmidt
  • Jason Kivlighn
  • Jens Georg
  • Jonathan Liu
  • Jonathan Matthew
  • Josep Torra
  • Julien Moutte
  • Kipp Cannon
  • LoneStar
  • Luis de Bethencourt
  • Mark Nauwelaerts
  • Mart Raudsepp
  • Mersad Jelacic
  • Michael Smith
  • Monty Montgomery
  • Nicolas Dufresne
  • Ognyan Tonchev
  • Olivier Crête
  • Pascal Buhler
  • Philip Jägenstedt
  • Philippe Normand
  • Piotr Fusik
  • Raimo Järvi
  • René Stadler
  • Reynaldo H. Verdejo Pinochet
  • Robert Swain
  • Sebastian Dröge
  • Sergey Scobich
  • Sergey Scobich)
  • Sjoerd Simons
  • Stefan Kost
  • Stefan Sauer
  • Sébastien Moutte
  • Thiago Santos
  • Thibault Saunier
  • Thomas Vander Stichele
  • Tim-Philipp Müller
  • Tommi Myöhänen
  • Vincent Penquerc'h
  • Wim Taymans
  • Youness Alaoui

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