CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning, specifically the variant used by Rust.

0.13.4 - 2024-12-24

Fixed

• cea608overlay: Fix rendering when roll-up base row is at the top.
• cea708mux: Handle CEA608 data correctly and output padding by default.
• cea708mux: Clear leftover pending codes correctly.
• cea708overlay: Produce better CEA608 layouts.
• cea708overlay: Fix background/foreground types and enable black background by default.
• cea708overlay: Clear correctly on caption timeout.
• mpegtslivesrc: Various fixes related to stream discontinuities.
• tttocea708: Fix various conformance issues.
• togglerecord: Fix various deadlocks and simplify mutexes.
• webrtcsink: Fix various deadlocks.
• webrtcsink: Set caps-change-mode=delayed on encoder capsfilter.
• webrtcsink: Ignore more fields on caps changes.

Added

• awss3putobjectsink: Add next-file support.
• tracers: Add signal to force writing log file to queue-levels and buffer-lateness tracers.
• webrtc: Handle some more Janus events.
• webrtcsink: Add support for openh264enc and nvh265enc.
• webrtcsrc: Add connect-to-first-producer property.

0.13.3 - 2024-11-02

Fixed

• gtk4paintablesink: Don't check for a GL context when filtering dmabuf caps.
• gtk4paintablesink: Use a correctly typed None value when retrieving paintable property fails.
• mpegtslivesrc: Parse PAT/PMT to lock to a single program/PCR in case multiple are in the stream.
• rtp: Fix reference timestamp meta de-duplication in depayloaders.
• quinn: Specify a default crypto provider to avoid conflicts.
• transcriberbin: Fix linking of user-provided transcriber.
• webrtcsink: Allow pixel-aspect-ratio changes.
• webrtcsink: Fix naming of error dot files of discovery pipelines.
• webrtcsink: Fix session not in place errors.
• webrtc: janus: Do not block in end_session().

Added

• awstranscriber: Post warning message with details when items are too late.
• transcriberbin: Support both latency and translate-latency properties.
• webrtc: janus: Add janus-state property.

Changed

• gtk4paintablesink: Deprecated "wayland" feature and call it "waylandegl" as it has nothing to do with generic Wayland support.

0.13.2 - 2024-09-28

Fixed

• cea608overlay: Avoid overflow when deciding which lines to retain.
• cea708mux: Actually push gap events downstream.
• cea708mux: Stop with EOS once all pads are EOS.
• cea708mux: Fix off-by-one when deciding if a buffer belongs to this or the next frame.
• mpegtslivesrc: Various timestamp tracking fixes.
• onvifmetadatapay: Set output caps earlier.
• transcriberbin: Fix passthrough state change.
• webrtcsink: Fix setting of RFC7273 attributes in the SDP.

Added

• dav1ddec: Add properties for film grain synthesis and in-loop filters.
• mpegtslivesrc: Handle PCR discontinuities.
• rtpav1depay: Add wait-for-keyframe and request-keyframe properties.
• webrtcsrc: Expose msid property on source pads.

Changed

• spotify: Reduce dependencies.

0.13.1 - 2024-08-27

Fixed

• transcriberbin: Fix gst-inspect with missing elements.
• gtk4paintablesink: Move dmabuf cfg to the correct bracket level.
• webrtcsrc: Don't hold the state lock while removing sessions.
• rtpbasepay: Various fixes to payloader base class.
• webrtcsink: Fix various assertions when finalizing.
• webrtcsrc: Make sure to always call end_session() without state lock.
• mpegtslivesrc: Handle PCR discontinuities as errors.
• ndisrc: Calculate timestamps for metadata buffers too.
• Various new clippy warnings.
• webrtcsink: Fix segment format mismatch when using a remote offer.
• awstranscriber: Fix sanity check in transcribe loop.
• whepsrc: Fix incorrect default caps.

Changed

• gtk4paintablesink: Enable gtk::GraphicsOffload::black-background when building with GTK 4.16 or newer.
• gstwebrtc-api: Always include index file in dist for convenience.
• rtpbasepay: Negotiate SSRC/PT with downstream via caps for backwards compatibility.
• hlssink3: Use more accurate fragment duration from splitmuxsink if available.

Added

• gtk4paintablesink: Add window-width and window-height properties.
• gtk4paintablesink: Add custom widget for automatically updating window size.
• fmp4mux / mp4mux: Add image orientation tag support.
• webrtcsink: Add nvv4l2av1enc support.
• cmafmux: Add Opus support.

0.13.0 - 2024-07-16

Added

• rtp: New RTP payloader and depayloader base classes, in addition to new payloader and depayloaders for: PCMA, PCMU, AC-3, AV1 (ported to the new base classes), MPEG-TS, VP8, VP9, MP4A, MP4G, JPEG, Opus, KLV.
• originalbuffer: New pair of elements that allows to save a buffer, perform transformations on it and then restore the original buffer but keeping any new analytics and other metadata on it.
• gopbuffer: New element for buffering an entire group-of-pictures.
• tttocea708: New element for converting timed text to CEA-708 closed captions.
• cea708mux: New element for muxing multiple CEA-708 services together.
• transcriberbin: Add support for generating CEA-708 closed captions and CEA-608-in-708.
• cea708overlay: New overlay element for CEA-708 and CEA-608 closed captions.
• dav1ddec: Signal colorimetry in the caps.
• webrtc: Add support for RFC7273 clock signalling and synchronization to webrtcsrc and webrtcsink.
• tracers: Add a new pad push durations tracer.
• transcriberbin: Add support for a secondary audio stream.
• quinn: New plugin with a QUIC source and sink element.
• rtpgccbwe: New mode based on linear regression instead of a kalman filter.
• rtp: New rtpsend and rtprecv elements that provide a new implementation of the rtpbin element with a separate send and receive side.
• rtpsrc2: Add support for new rtpsend / rtprecv elements instead of rtpbin.
• webrtcsrc: Add multi-producer support.
• livesync: Add sync property for enabling/disabling syncing of the output buffers to the clock.
• mpegtslivesrc: New element for receiving an MPEG-TS stream, e.g. over SRT or UDP, and exposing the remote PCR clock as a local GStreamer clock.
• gtk4paintablesink: Add support for rotations / flipping.
• gtk4paintablesink: Add support for RGBx formats in non-GL mode.

Fixed

• livesync: Queue up to latency buffers instead of requiring a queue of the same size in front of livesync.
• livesync: Synchronize the first buffer to the clock too.
• livesync: Use correct duration for deciding whether a filler has to be inserted or not.
• audioloudnorm: Fix possible off-by-one in the limiter when handling the very last buffer.
• webrtcsink: Fix property types for rav1enc.

Changed

• sccparse, mccparse: Port from nom to winnow.
• uriplaylistbin: Rely on uridecodebin3 gapless logic instead of re-implementing it.
• webrtc: Refactor of JavaScript API.
• janusvrwebrtcsink: New use-string-ids property to distinguish between integer and string room IDs, instead of always using strings and guessing what the server expects.
• janusvrwebrtcsink: Handle more events and expose some via signals.
• dav1ddec: Require dav1d 1.3.0.
• closedcaption: Drop libcaption C code and switch to a pure Rust implementation.

0.12.7 - 2024-06-19

Fixed

• aws, spotifyaudiosrc, reqwesthttpsrc, webrtchttp: Fix race condition when unlocking
• rtp: Allow any payload type for the AV1 RTP payloader/depayloader
• rtp: Various fixes to the AV1 RTP payloader/depayloader to work correctly with Chrome and Pion
• meson: Various fixes to the meson-based build system around cargo
• webrtcsink: Use correct property names for configuring av1enc
• webrtcsink: Avoid lock poisoning when setting encoder properties

Added

• ndi: Support for NDI SDK v6
• webrtcsink: Support for AV1 via nvav1enc, av1enc or rav1enc

Changed

• Update to async-tungstenite 0.26

0.12.6 - 2024-05-23

Fixed

• Various Rust 1.78 clippy warnings.
• gtk4paintablesink: Fix plugin description.

Added

• fmp4mux / mp4mux: Add support for adding AV1 header OBUs into the MP4 headers.
• fmp4mux / mp4mux: Take track language from the tags if provided.
• gtk4paintablesink: Add GST_GTK4_WINDOW_FULLSCREEN environment variable to create a fullscreen window for debugging purposes.
• gtk4paintablesink: Also create a window automatically when called from gst-play-1.0.
• webrtc: Add support for insecure TLS connections.
• webrtcsink: Add VP9 parser after the encoder.

Changed

• webrtcsink: Improve error when no discovery pipeline runs.
• rtpgccbwe: Improve debug output in various places.

0.12.5 - 2024-04-29

Fixed

• hrtfrender: Use a bitmask instead of an int in the caps for the channel-mask.
• rtpgccbwe: Don't log an error when pushing a buffer list fails while stopping.
• webrtcsink: Don't panic in bitrate handling with unsupported encoders.
• webrtcsink: Don't panic if unsupported input caps are used.
• webrtcsrc: Allow a None producer-id in request-encoded-filter signal.

Added

• aws: New property to support path-style addressing.
• fmp4mux / mp4mux: Support FLAC instead (f)MP4.
• gtk4: Support directly importing dmabufs with GTK 4.14.
• gtk4: Add force-aspect-ratio property similar to other video sinks.

0.12.4 - 2024-04-08

Fixed

• aws: Use fixed behaviour version to ensure that updates to the AWS SDK don't change any defaults configurations in unexpected ways.
• onvifmetadataparse: Fix possible deadlock on shutdown.
• webrtcsink: Set perfect-timestamp=true on audio encoders to work around bugs in Chrome's audio decoders.
• Various clippy warnings.

Changed

• reqwest: Update to reqwest 0.12.
• webrtchttp: Update to reqwest 0.12.

0.12.3 - 2024-03-21

Fixed

• gtk4paintablesink: Fix scaling of texture position.
• janusvrwebrtcsink: Handle 64 bit numerical room ids.
• janusvrwebrtcsink: Don't include deprecated audio/video fields in publish messages.
• janusvrwebrtcsink: Handle various other messages to avoid printing errors.
• livekitwebrtc: Fix shutdown behaviour.
• rtpgccbwe: Don't forward buffer lists with buffers from different SSRCs to avoid breaking assumptions in rtpsession.
• sccparse: Ignore invalid timecodes during seeking.
• webrtcsink: Don't try parsing audio caps as video caps.

Changed

• webrtc: Allow resolution and framerate changes.
• webrtcsrc: Make producer-peer-id optional.

Added

• livekitwebrtcsrc: Add new LiveKit source element.
• regex: Add support for configuring regex behaviour.
• spotifyaudiosrc: Document how to use with non-Facebook accounts.
• webrtcsrc: Add do-retransmission property.

0.12.2 - 2024-02-26

Fixed

• rtpgccbwe: Don't reset PTS/DTS to None as otherwise rtpsession won't be able to generate valid RTCP.
• webrtcsink: Fix usage with 1.22.

Added

• janusvrwebrtcsink: Add secret-key property.
• janusvrwebrtcsink: Allow for string room ids and add string-ids property.
• textwrap: Don't split on all whitespaces, especially not on non-breaking whitespace.

0.12.1 - 2024-02-13

Added

• gtk4: Create a window for testing purposes when running in gst-launch-1.0 or if GST_GTK4_WINDOW=1 is set.
• webrtcsink: Add msid property.

0.12.0 - 2024-02-08

Changed

• ndi: ndisrc passes received data downstream without an additional copy, if possible.
• webrtc: Cleanups to webrtcsrc/sink default signalling protocol, JavaScript implementation and server implementation.
• webrtc: whipwebrtcsink is renamed to whipclientsink and deprecate old whipsink.

Fixed

• gtk4: Fix Windows build when using EGL.
• gtk4: Fix ARGB pre-multiplication with GTK 4.14. This requires building with the gtk_v4_10 or even better gtk_v4_14 feature.
• gtk4: Fix segfault if GTK3 is used in the same process.
• gtk4: Always draw background behind the video frame and not only when borders have to be added to avoid glitches.
• livekitwebrtcsink: Add high-quality layer for video streams.
• webrtc: Fix potential hang and fd leak in signalling server.
• webrtc: Fix closing of WebSockets.
• webrtchttp: Allow setting None for audio/video caps for WHEP.

Added

• New awss3putobjectsink that works similar to awss3sink but with a different upload strategy.
• New hlscmafsink element for writing HLS streams with CMAF/ISOBMFF fragments.
• New inter plugin with intersink / intersrc elements that allow to connect different pipelines in the same process.
• New janusvrwebrtcsink element for the Janus VideoRoom API.
• New rtspsrc2 element.
• New whipserversrc element.
• gtk4: New background-color property for setting the color of the background of the frame and the borders, if any.
• gtk4: New scale-filter property for defining how to scale the frames.
• livesync: Add support for image formats.
• ndi: Closed Caption support in ndisrc / ndisink.
• textwrap: Add support for gaps.
• tracers: Optionally only show late buffers in buffer-lateness tracer.
• webrtc: Add support for custom headers.
• webrtcsink: New payloader-setup signal to configure payloader elements.
• webrtcsrc: Support for navigation events.

0.11.3 - 2023-12-18

Fixed

• ndi: Mark a private type as such and remove a wrong Clone impl of internal types.
• uriplaylistbin: Fix a minor clippy warning.
• fallbacksrc: Fix error during badly timed timeout scheduling.
• webrtcsink: Fail gracefully if webrtcbin pads can't be requested instead of panicking.
• threadshare: Fix deadlock in ts-udpsrc notify::used-socket signal emission.

Changed

• Update to AWS SDK 1.0.
• Update to windows-sys 0.52.
• Update to async-tungstenite 0.24.
• Update to bitstream-io 2.0.
• tttocea608: De-duplicate some functions.
• gtk4: Use async-channel instead of deprecated GLib main context channel.

0.11.2 - 2023-11-11

Fixed

• filesink / s3sink: Set sync=false to allow processing faster than real-time.
• hlssink3: Various minor bugfixes and cleanups.
• livesync: Various minor bugfixes and cleanups that should make the element work more reliable.
• s3sink: Fix handling of non-ASCII characters in URIs and keys.
• sccparse: Parse SCC files that are incorrectly created by CCExtractor.
• ndisrc: Assume > 8 channels are unpositioned.
• rtpav1depay: Skip unexpected leading fragments instead of repeatedly warning about the stream possibly being corrupted.
• rtpav1depay: Don't push stale temporal delimiters downstream but wait until a complete OBU is collected.
• whipwebrtcsink: Use correct URL during redirects.
• webrtcsink: Make sure to not miss any ICE candidates.
• webrtcsink: Fix deadlock when calling set-local-description.
• webrtcsrc: Fix reference cycles that prevented the element from being freed.
• webrtcsrc: Define signaller property as CONSTRUCT_ONLY to make it actually possible to set different signallers.
• webrtc: Update livekit signaller to livekit 0.2.
• meson: Various fixes to the meson-based build system.

Added

• audiornnoise: Attach audio level meta to output buffers.
• hlssink3: Allow adding EXT-X-PROGRAM-DATE-TIME tag to the manifest.
• webrtcsrc: Add turn-servers property.

Changed

• aws/webrtc: Update to AWS SDK 0.57/0.35.

0.11.1 - 2023-10-04

Fixed

• fallbackswitch: Fix various deadlocks.
• webrtcsink: Gracefully fail if adding the TWCC RTP header extension fails.
• webrtcsink: Fix codec selection discovery.
• webrtcsink: Add support for D3D11 memory and qsvh264enc.
• onvifmetadataparse: Skip metadata frames with unrepresentable UTC times.
• gtk4paintablesink: Pre-multiply alpha when creating GL textures with alpha.
• gtk4paintablesink: Only support RGBA/RGB in the GL code path.
• webrtchttp: Respect HTTP redirects.
• fmp4mux: Specify unit of fragment-duration property.

Changed

• threadshare: Port to polling 3.1.

0.11.0 - 2023-08-10

Changed

• Updated MSRV to 1.70.
• Compatible with gtk-rs 0.18 and gstreamer-rs 0.21.
• awstranscriber: Move to HTTP2-based API via the aws-sdk-transcribestreaming crate instead of our own implementation around the WebSocket API.

Added

• webrtcsink: Add AWS KVS signaller and corresponding aws-kvs-webrtcsink element.
• awstranscriber / transcriberbin: Add support for translations and outputting transcriptions from a single audio stream in multiple languages at once.
• gstwebrtc-api: JavaScript API for interacting with the default signalling protocol used by webrtcsink / webrtcsrc.
• cea608to708: New element for converting CEA608 to CEA708 closed captions.
• webrtcsink: Expose the signaller as property and allow implementing a custom signaller by connecting signal handlers to the default signaller.
• webrtcsink: Add support for pre-encoded streams.
• togglerecord: Add support for non-live input streams.
• webrtcsink: New whipwebrtcsink that implements WHIP around webrtcsink. The existing whipsink still exists but will sooner or later be deprecated.
• webrtcsink: Add LiveKit signaller and corresponding livekitwebrtcsink element.

0.10.11 - 2023-07-20

Fixed

• fallbackswitch: Fix pad health calculation and notifies.
• fallbackswitch: Change the threshold for trailing buffers.
• webrtcsink: Fix pipeline when input caps contain a max-framerate field.
• webrtcsink: Set VP8/VP9 payloader properties based on payloader element factory name.
• webrtcsink: Set config-interval=-1 and aggregate-mode=zero-latency for H264/5 payloaders.
• webrtcsink: Translate force-keyunit events to custom force-IDR API of NVIDIA encoders.
• webrtcsink: Configure only 4 threads instead of 12 for x264enc for Chrome compatibility.
• fmp4mux: Fix draining in chunk mode if keyframes are after the desired fragment end.

0.10.10 - 2023-07-05

Fixed

• livesync: Improve EOS handling to be in sync with queue's behaviour.
• livesync: Wait for the end timestamp of the previous buffer before looking at queue to actually make use of the available latency.
• webrtcsink: Avoid panic on unprepare from an async tokio context.
• webrtc/signalling: Fix race condition in message ordering.
• webrtcsink: Use the correct property types when configuring nvvideoconvert.
• videofx: Minimize dependencies of the image crate.
• togglerecord: Fix segment clipping to actually work as intended.

Added

• gtk4paintablesink: Support for WGL/EGL on Windows.
• gtk4paintablesink: Add Python example application to the repository.

0.10.9 - 2023-06-19

Fixed

• mp4mux/fmp4mux: Fix byte order in Opus extension box.
• webrtcsrc: Add twcc extension to the codec-preferences when present.
• webrtcsink: Don't try using cudaconvert if it is not present.
• mccparse: Don't offset the first timecode to a zero PTS.
• Correctly use MPL as license specifier instead of MPL-2 for plugins that compile with GStreamer < 1.20.

Added

• fallbackswitch: Add stop-on-eos property.

0.10.8 - 2023-06-07

Fixed

• fmp4mux: Use updated start PTS when checking if a stream is filled instead of a stale one.
• fmp4mux: Fix various issues with stream gaps, especially in the beginning.
• fmp4mux: Fix waiting in live pipelines.
• uriplaylistbin: Prevent deadlocks during property notifications.
• webrtcsink: Fix panics during twcc-stats callback and related issues.
• awstranscriber: Handle stream disconts correctly.
• roundedcorners: Fix caps negotiation to not use I420 if a border radius is configured.
• whipsink: Use the correct pad template to request pads from the internal webrtcbin.
• fallbacksrc: Don't apply fallback audio caps to the main stream.
• webrtcsrc: Fix caps handling during transceiver creation.

Changed

• rtpgccbwe: Improve packet handling.

0.10.7 - 2023-05-09

Fixed

• ffv1dec: Drop rank until the implementation is feature-complete.
• spotifyaudiosrc: Check cached credentials before use and fix usage of credentials cache.
• tttocea608: Specify raw CEA608 field.
• gtk4paintablesink: Fix compilation on non-Linux UNIX systems.
• webrtcsrc: Don't set stun-server to the empty string if none was set.
• webrtcsink: Abort statistics collection before stopping the signaller.
• rtpgccbwe: Don't process empty lists.

Changed

• ndi: Update to libloading 0.8.
• aws: Update to AWS SDK 0.55/0.27.
• webrtcsink: Order pads by serial number.
• Update to async-tungstenite 0.22.

Added

• webrtcsink/webrtcsrc: Add request-encoded-filter signal to add support for inserting custom filters between encoder/payloader or depayloader/decoder. This allows interacting with the "insertable streams" API from Chrome.

0.10.6 - 2023-04-06

Fixed

• webrtcsink: Fix max/min-bitrate property blurb/nick.
• uriplaylistbin: Add missing queues to example.
• tttocea608: Fix pushing of caps events that sometimes contained unfixed caps.
• tttocea608: Fix disappearing text after special character in non-popon mode.
• transcriberbin: Fix deadlock on construction.
• transcriberbin: Fix initial bin setup.
• fallbacksrc: Handle incompatible downstream caps without panicking.
• ndisrc: Fix copying of raw video frames with different NDI/GStreamer strides.
• livesync: Correctly assume zero upstream latency if latency query fails.

Added

• webrtcsink: Add ice-transport-policy property that proxies the same webrtcbin property.

0.10.5 - 2023-03-19

Fixed

• gtk4: Fix build with OpenGL support on macOS.
• threadshare: Fix symbol conflicts when statically linking the plugin.

0.10.4 - 2023-03-14

Fixed

• fmp4mux: Return a running time from AggregatorImpl::next_time() to fix waiting in live pipelines.
• fmp4mux: Fix hls_live example to set properties on the right element.
• uriplaylistbin: Reset element when switching back to NULL state.
• livesync: Handle variable framerates correctly in fallback buffer duration calculation.
• meson: Fix GStreamer version feature detection.

Added

• webrtc: New webrtc element.

0.10.3 - 2023-03-02

Added

• tracers: queue_levels tracer now also supports printing the appsrc levels.
• webrtc: webrtcsink can use nvvidconv if nvvideoconvert does not exist on an NVIDIA platform.

Fixed

• gtk4: Set the sync point on the video frame after mapping it as otherwise the frame might not be ready yet for further usage.
• livesync: Correctly calculate the fallback buffer duration from the video framerate.
• ndi: Handle caps changes correctly in ndisinkcombiner.

Changed

• webrtc: Minor cleanup.

0.10.2 - 2023-02-23

Fixed

• hlssink3: Allow signal handlers to return None
• gtk4: Make GL context sharing more reliable in pipelines with multiple gtk4paintablesinks
• gtk4: Attach channel receiver to the main context from the correct thread to make it possible to start the sink from a different thread than the main thread without having retrieved the paintable from the main thread before.
• fmp4mux/mp4mux: Ignore caps changes if only the framerate changes.

Changed

• gtk4: Simplify and refactor GL context sharing. Apart from being more reliable this reduces GL resource usage.

0.10.1 - 2023-02-13

Fixed

• rtpav1pay: Fix calculation of Leb128 size size to work correctly with streams from certain encoders.

0.10.0 - 2023-02-10

Fixed

• audiornnoise: Use correct value range for the samples
• awss3sink: Treat stopping without EOS as an error for multipart upload
• awss3hlssink: Fix the name of the hlssink child element
• awss3hlssink: Fix deadlock on EOS
• dav1d: Various fixes to improve performance, to handle decoding errors more gracefully and to make sure all frames are output in the end
• fmp4mux: Various fixes to fragment splitting behaviour, output formatting and header generation
• gtk4: Various stability and rendering fixes
• meson: Various fixes and improvements to the meson-based build system
• ndi: provide non-Linux/macOS UNIX fallback for the soname
• ndisrc: Use default channel mask for audio output to allow >2 channels to work better
• rav1e: Correctly enable threading support
• rtpav1: Various fixes to the payloader and depayloader to handle streams more correctly and to handle errors more cleanly
• rtpav1depay: Set caps on the source pad
• spotify: fix "start a runtime from within a runtime" with static link
• textahead: fix previous buffers
• textwrap: Don't panic on empty buffers
• tttocea608: Don't fail if a GAP event contains no duration
• webrtchttp: whipsink: construct TURN URL correctly
• webrtcsink: fix panic on pre-bwe request error
• whipsink: Send ICE candidates together with the offer
• whipsink: Various cleanups and minor fixes

Added

• audiornnoise: Add voice detection threshold property
• awss3hlssink: Add stats property
• awss3sink: Add properties to set Content-Type and Content-Disposition
• fmp4mux: add 'offset-to-zero' property
• fmp4mux/mp4mux: add support for muxing Opus, VP8, VP9 and AV1 streams
• fmp4mux/mp4mux: Make media/track timescales configurable
• fmp4mux: Add support for CMAF-style chunking, e.g. low-latency / LL HLS and DASH
• gtk4: Support for rendering GL textures on X11/EGL, X11/GLX, Wayland and macOS
• hlssink3: Allow generating i-frame-only playlist
• livesync: New element that allows maintaining a contiguous live stream without gaps from a potentially unstable source.
• mp4mux: New non-fragmented MP4 muxer element
• spotifyaudiosrc: Support configurable bitrate
• textahead: add settings to display previous buffers
• threadshare: Introduce new ts-audiotestsrc
• webrtcsink: Support nvv4l2vp9enc
• whepsource: Add a WebRTC WHEP source element

Changed

• audiofx: Derive from AudioFilter where possible
• dav1ddec: Lower rank to primary to allow usage of hardware decoders with higher ranks
• fmp4mux: Only push fragment_offset if write-mfra is true to reduce memory usage
• webrtcsink: Make the turn-server property a turn-servers list
• webrtcsink: Move from async-std to tokio