-This is GStreamer 1.6.0
+GStreamer 1.20 Release Notes
-The GStreamer team is proud to announce a new major feature release in the
-stable 1.x API series of your favourite cross-platform multimedia framework!
+GStreamer 1.20 has not been released yet. It is scheduled for release
+around October/November 2021.
-This release has been in the works for more than a year and is packed with new
-features, bug fixes and other improvements.
+1.19.x is the unstable development version that is being developed in
+the git main branch and which will eventually result in 1.20, and 1.19.2
+is the current development release in that series
-See http://gstreamer.freedesktop.org/releases/1.6/ for the full list of
-changes.
+It is expected that feature freeze will be in early October 2021,
+followed by one or two 1.19.9x pre-releases and the new 1.20 stable
+release around October/November 2021.
+
+1.20 will be backwards-compatible to the stable 1.18, 1.16, 1.14, 1.12,
+1.10, 1.8, 1.6,, 1.4, 1.2 and 1.0 release series.
+
+See https://gstreamer.freedesktop.org/releases/1.20/ for the latest
+version of this document.
+
+Last updated: Wednesday 22 September 2021, 18:00 UTC (log)
+
+Introduction
+
+The GStreamer team is proud to announce a new major feature release in
+the stable 1.x API series of your favourite cross-platform multimedia
+framework!
+
+As always, this release is again packed with many new features, bug
+fixes and other improvements.
Highlights
-- Stereoscopic 3D and multiview video support
-- Trick mode API for key-frame only fast-forward/fast-reverse playback etc.
-- Improved DTS (decoding timestamp) vs. PTS (presentation timestamp) handling
- to account for negative DTS
-- New GstVideoConverter API for more optimised and more correct conversion of
- raw video frames between all supported formats, with rescaling
-- v4l2src now supports renegotiation
-- v4l2transform can now do scaling
-- V4L2 Element now report Colorimetry properly
-- Easier chunked recording of MP4, Matroska, Ogg, MPEG-TS: new splitmuxsink
- and multifilesink improvements
-- Content Protection signalling API and Common Encryption (CENC) support for
- DASH/MP4
-- Many adaptive streaming (DASH, HLS and MSS) improvements
-- New PTP and NTP network client clocks and better remote clock tracking
- stability
-- High-quality text subtitle overlay at display resolutions with glimagesink
- or gtkglsink
-- RECORD support for the GStreamer RTSP Server
-- Retransmissions (RTX) support in RTSP server and client
-- RTSP seeking support in client and server has been fixed
-- RTCP scheduling improvements and reduced size RTCP support
-- MP4/MOV muxer acquired a new "robust" mode of operation which attempts to
- keep the output file in a valid state at all times
-- Live mixing support in aggregator, audiomixer and compositor was improved a
- lot
-- compositor now supports rescaling and converting inputs streams on the fly
-- New audiointerleave element with proper input synchronisation and live input
- support
-- Blackmagic Design DeckLink capture and playback card support was rewritten
- from scratch; 2k/4k support; mode sensing
-- KLV metadata support in RTP and MPEG-TS
-- H.265 video encoder (x265), decoders (libav, libde265) and RTP payloader and
- depayloaders
-- New DTLS plugin and SRTP/DTLS support
-- OpenGL3 support, multiple contexts and context propagation, 3D video,
- transfer/conversion separation, subtitle blending
-- New OpenGL-based QML video sink, Gtk GL video sink, CoreAnimation
- CAOpenGLLayerSink video sink
-- gst-libav switched to ffmpeg as libav-provider, gains support for
- 3D/multiview video, trick modes, and the CAVS codec
-- GstHarness API for unit tests
-- gst-editing-services got a completely new ges-launch-1.0 interface, improved
- mixing support and integration into gst-validate
-- gnonlin has been deprecated in favor of nle (Non Linear Engine) in
- gst-editing-services
-- gst-validate has a new plugin system, an extensive default testsuite,
- support for concurrent test runs and valgrind support
-- cerbero build tool for SDK binary packages gains new 'bundle-source' command
-- Various improvements to the Android, iOS, OS X and Windows platform support
+- this section will be completed in due course
+
+Major new features and changes
+
+Noteworthy new features and API
+
+- this section will be filled in in due course
+
+New elements
+
+- this section will be filled in in due course
+
+New element features and additions
+
+- this section will be filled in in due course
+
+Plugin and library moves
+
+- this section will be filled in in due course
+
+- There were no plugin moves or library moves in this cycle.
+
+Plugin removals
+
+The following elements or plugins have been removed:
+
+- this section will be filled in in due course
+
+Miscellaneous API additions
+
+- this section will be filled in in due course
+
+Miscellaneous performance, latency and memory optimisations
+
+- this section will be filled in in due course
+
+Miscellaneous other changes and enhancements
+
+- this section will be filled in in due course
+
+Tracing framework and debugging improvements
+
+- this section will be filled in in due course
+
+Tools
+
+- this section will be filled in in due course
+
+GStreamer RTSP server
+
+- this section will be filled in in due course
+
+GStreamer VAAPI
+
+- this section will be filled in in due course
+
+GStreamer OMX
+
+- this section will be filled in in due course
+
+GStreamer Editing Services and NLE
+
+- this section will be filled in in due course
+
+GStreamer validate
+
+- this section will be filled in in due course
+
+GStreamer Python Bindings
+
+- this section will be filled in in due course
+
+GStreamer C# Bindings
+
+- this section will be filled in in due course
+
+GStreamer Rust Bindings and Rust Plugins
+
+The GStreamer Rust bindings are released separately with a different
+release cadence that’s tied to gtk-rs, but the latest release has
+already been updated for the upcoming new GStreamer 1.20 API.
+
+gst-plugins-rs, the module containing GStreamer plugins written in Rust,
+has also seen lots of activity with many new elements and plugins.
+
+What follows is a list of elements and plugins available in
+gst-plugins-rs, so people don’t miss out on all those potentially useful
+elements that have no C equivalent.
+
+- FIXME: add new elements
+
+Rust audio plugins
+
+- audiornnoise: New element for audio denoising which implements the
+ noise removal algorithm of the Xiph RNNoise library, in Rust
+- rsaudioecho: Port of the audioecho element from gst-plugins-good
+ rsaudioloudnorm: Live audio loudness normalization element based on
+ the FFmpeg af_loudnorm filter
+- claxondec: FLAC lossless audio codec decoder element based on the
+ pure-Rust claxon implementation
+- csoundfilter: Audio filter that can use any filter defined via the
+ Csound audio programming language
+- lewtondec: Vorbis audio decoder element based on the pure-Rust
+ lewton implementation
+
+Rust video plugins
+
+- cdgdec/cdgparse: Decoder and parser for the CD+G video codec based
+ on a pure-Rust CD+G implementation, used for example by karaoke CDs
+- cea608overlay: CEA-608 Closed Captions overlay element
+- cea608tott: CEA-608 Closed Captions to timed-text (e.g. VTT or SRT
+ subtitles) converter
+- tttocea608: CEA-608 Closed Captions from timed-text converter
+- mccenc/mccparse: MacCaption Closed Caption format encoder and parser
+- sccenc/sccparse: Scenarist Closed Caption format encoder and parser
+- dav1dec: AV1 video decoder based on the dav1d decoder implementation
+ by the VLC project
+- rav1enc: AV1 video encoder based on the fast and pure-Rust rav1e
+ encoder implementation
+- rsflvdemux: Alternative to the flvdemux FLV demuxer element from
+ gst-plugins-good, not feature-equivalent yet
+- rsgifenc/rspngenc: GIF/PNG encoder elements based on the pure-Rust
+ implementations by the image-rs project
+
+Rust text plugins
+
+- textwrap: Element for line-wrapping timed text (e.g. subtitles) for
+ better screen-fitting, including hyphenation support for some
+ languages
+
+Rust network plugins
+
+- reqwesthttpsrc: HTTP(S) source element based on the Rust
+ reqwest/hyper HTTP implementations and almost feature-equivalent
+ with the main GStreamer HTTP source souphttpsrc
+- s3src/s3sink: Source/sink element for the Amazon S3 cloud storage
+- awstranscriber: Live audio to timed text transcription element using
+ the Amazon AWS Transcribe API
+
+Generic Rust plugins
+
+- sodiumencrypter/sodiumdecrypter: Encryption/decryption element based
+ on libsodium/NaCl
+- togglerecord: Recording element that allows to pause/resume
+ recordings easily and considers keyframe boundaries
+- fallbackswitch/fallbacksrc: Elements for handling potentially
+ failing (network) sources, restarting them on errors/timeout and
+ showing a fallback stream instead
+- threadshare: Set of elements that provide alternatives for various
+ existing GStreamer elements but allow to share the streaming threads
+ between each other to reduce the number of threads
+- rsfilesrc/rsfilesink: File source/sink elements as replacements for
+ the existing filesrc/filesink elements
+
+Build and Dependencies
+
+- this section will be filled in in due course
+
+gst-build
+
+- this section will be filled in in due course
+
+Cerbero
+
+Cerbero is a meta build system used to build GStreamer plus dependencies
+on platforms where dependencies are not readily available, such as
+Windows, Android, iOS and macOS.
+
+General improvements
+
+- this section will be filled in in due course
+
+macOS / iOS
+
+- this section will be filled in in due course
+
+Windows
+
+- this section will be filled in in due course
+
+Windows MSI installer
+
+- this section will be filled in in due course
+
+Linux
+
+- this section will be filled in in due course
+
+Android
+
+- this section will be filled in in due course
+
+Platform-specific changes and improvements
+
+Android
+
+- this section will be filled in in due course
+
+macOS and iOS
+
+- this section will be filled in in due course
+
+Windows
+
+- this section will be filled in in due course
+
+Linux
+
+- this section will be filled in in due course
+
+Documentation improvements
+
+- this section will be filled in in due course
+
+Possibly Breaking Changes
+
+- this section will be filled in in due course
+- MPEG-TS SCTE-35 API changes (FIXME: flesh out)
+- gst_parse_launch() and friends now error out on non-existing
+ properties on top-level bins where they would silently fail and
+ ignore those before.
+
+Known Issues
+
+- this section will be filled in in due course
+
+- There are a couple of known WebRTC-related regressions/blockers:
+
+ - webrtc: DTLS setup with Chrome is broken
+ - webrtcbin: First keyframe is usually lost
+
+Contributors
+
+- this section will be filled in in due course
+
+… and many others who have contributed bug reports, translations, sent
+suggestions or helped testing.
+
+Stable 1.20 branch
+
+After the 1.20.0 release there will be several 1.20.x bug-fix releases
+which will contain bug fixes which have been deemed suitable for a
+stable branch, but no new features or intrusive changes will be added to
+a bug-fix release usually. The 1.20.x bug-fix releases will be made from
+the git 1.20 branch, which will be a stable branch.
+
+1.20.0
+
+1.20.0 is scheduled to be released around October/November 2021.
+
+Schedule for 1.22
+
+Our next major feature release will be 1.22, and 1.21 will be the
+unstable development version leading up to the stable 1.22 release. The
+development of 1.21/1.22 will happen in the git main branch.
+
+The plan for the 1.22 development cycle is yet to be confirmed.
+
+1.22 will be backwards-compatible to the stable 1.20, 1.18, 1.16, 1.14,
+1.12, 1.10, 1.8, 1.6, 1.4, 1.2 and 1.0 release series.
+
+------------------------------------------------------------------------
+
+These release notes have been prepared by Tim-Philipp Müller with
+contributions from …
+License: CC BY-SA 4.0
projects / platform / upstream / gstreamer.git / blobdiff