gstreamer/subprojects/gst-libav/NEWS

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GStreamer 1.20 Release Notes
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GStreamer 1.20 has not been released yet. It is scheduled for release in
November 2021.
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1.19.x is the unstable development version that is being developed in
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the git main branch and which will eventually result in 1.20, and 1.19.3
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is the current development release in that series
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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.
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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
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version of this document.
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Last updated: Monday 1 November 2021, 01:00 UTC (log)
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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!
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As always, this release is again packed with many new features, bug
fixes and other improvements.
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Highlights
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- this section will be completed in due course
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Major new features and changes
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Noteworthy new features and API
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- this section will be filled in in due course
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New elements
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- this section will be filled in in due course
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New element features and additions
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- this section will be filled in in due course
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Plugin and library moves
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- this section will be filled in in due course
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- There were no plugin moves or library moves in this cycle.
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Plugin removals
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The following elements or plugins have been removed:
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- this section will be filled in in due course
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- The ofa audio fingerprinting plugin has been removed. The MusicIP
database has been defunct for years so this plugin is likely neither
useful nor used by anyone.
- The mms plugin containing mmssrc has been removed. It seems unlikely
anyone still needs this or that there are even any streams left out
there. The MMS protocol was deprecated in 2003 (in favour of RTSP)
and support for it was dropped with Microsoft Media Services 2008,
and Windows Media Player apparently also does not support it any
more.
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Miscellaneous API additions
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- this section will be filled in in due course
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Miscellaneous performance, latency and memory optimisations
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- this section will be filled in in due course
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Miscellaneous other changes and enhancements
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- this section will be filled in in due course
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Tracing framework and debugging improvements
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- this section will be filled in in due course
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Tools
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- this section will be filled in in due course
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GStreamer RTSP server
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- this section will be filled in in due course
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GStreamer VAAPI
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- this section will be filled in in due course
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GStreamer OMX
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- this section will be filled in in due course
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GStreamer Editing Services and NLE
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- this section will be filled in in due course
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GStreamer validate
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- this section will be filled in in due course
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GStreamer Python Bindings
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- this section will be filled in in due course
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GStreamer C# Bindings
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- this section will be filled in in due course
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GStreamer Rust Bindings and Rust Plugins
The GStreamer Rust bindings are released separately with a different
release cadence thats tied to gtk-rs, but the latest release has
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already been updated for the upcoming new GStreamer 1.20 API.
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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 dont miss out on all those potentially useful
elements that have no C equivalent.
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- FIXME: add new elements
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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
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Build and Dependencies
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- Meson 0.59 or newer is required to build GStreamer now.
- FIXME: this section will be filled in in due course
Explicit opt-in required for build of certain plugins with (A)GPL dependencies
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Some plugins have GPL- or AGPL-licensed dependencies and those plugins
will no longer be built by default unless you have explicitly opted in
to allow (A)GPL-licensed dependencies by passing -Dgpl=enabled to Meson,
even if the required dependencies are available.
See Building plugins with (A)GPL-licensed dependencies for more details
and a non-exhaustive list of plugins affected.
gst-build: replaced by Monorepo
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- this section will be filled in in due course
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- FIXME: describe + link to Monorepo FAQ
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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.
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General improvements
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- this section will be filled in in due course
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macOS / iOS
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- this section will be filled in in due course
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Windows
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- this section will be filled in in due course
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Windows MSI installer
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- this section will be filled in in due course
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Linux
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- this section will be filled in in due course
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Android
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- this section will be filled in in due course
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Platform-specific changes and improvements
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Android
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- this section will be filled in in due course
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macOS and iOS
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- this section will be filled in in due course
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Windows
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- this section will be filled in in due course
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Linux
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- this section will be filled in in due course
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Documentation improvements
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- this section will be filled in in due course
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Possibly Breaking Changes
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- FIXME: this section will be filled in in due course
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- 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.
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- playbin and uridecodebin now emit the source-setup signal before the
element is added to the bin and linked so that the source element is
already configured before any scheduling query comes in, which is
useful for elements such as appsrc or giostreamsrc. (Merge Request)
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Known Issues
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- 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
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Contributors
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- this section will be filled in in due course
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… and many others who have contributed bug reports, translations, sent
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suggestions or helped testing.
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Stable 1.20 branch
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After the 1.20.0 release there will be several 1.20.x bug-fix releases
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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
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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.
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1.20.0
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1.20.0 is scheduled to be released around October/November 2021.
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Schedule for 1.22
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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
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development of 1.21/1.22 will happen in the git main branch.
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The plan for the 1.22 development cycle is yet to be confirmed.
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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.
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------------------------------------------------------------------------
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These release notes have been prepared by Tim-Philipp Müller with
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contributions from …
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License: CC BY-SA 4.0