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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.

0.15.1 - 2026-02-28

Fixed

  • Don't convert push_event() false returns into flow errors.
  • rtp: rtprecv: Send mandatory events on the RTCP srcpad before buffers.
  • rtp: rtpav1pay: Insert sequence header if a keyframe is missing it.
  • speechmaticstranscriber: Fix first buffer PTS race condition.

0.15.0 - 2026-02-21

Fixed

  • audiornnoise: Fix audio level value reporting.

  • awspolly: Fix overflow budget calculation.

  • awspolly: Fix various panics.

  • awstranslate/awstranscriber2: Post error messages on connection errors.

  • dav1ddec: Various fixes to allocation query handling.

  • elevenlabssynthesizer: Improve gap handling in non-clip overflow modes.

  • gifenc: Avoid unnecessary resets on flush/caps change.

  • gtk4paintablesink: Fix odd-size subsampling workaround.

  • isobmff: Fix writing of EAC3 stream metadata.

  • isobmff: Make TAI timestamp support spec compliant.

  • isobmff: Write more complete vpcC box for VP8/VP9.

  • isobmff: fmp4: Don't overlap durations on fragment header buffers.

  • ndisrc: Fix audio corruption related to stride padding.

  • quinn: Various bugfixes and improvements.

  • livesync: Various fixes related to reverse playback and segment handling.

  • rtp: basepay: Consider size of header extensions in maximum payload size calculation.

  • rtprecv: Various bugfixes and performance improvements.

  • rtspsrc2: Fix appsrc max-time configuration.

  • sccparse: Handle streams with more than one byte tuple.

  • speech synthesizers: Various bugfixes and improvements.

  • speechmaticstranscriber: Fix handling of diarization=none.

  • st2038: Various fixes and support for more alignments.

  • threadshare: Some deadlock fixes.

  • transcriberbin: Fix latency reporting in various situations.

  • webrtcsink: Fix deadlock when recalculating latency.

  • webrtcsink: Fix deadlock between remote description and ICE handling.

  • webrtcsink: Handle NVIDIA encoder interfaces changes between versions / platforms.

  • webrtc: Only register data channels for internal use.

  • webrtc: Various minor fixes and improvements.

  • ... and many more fixes and minor improvements!

Added

  • analytics: Add YOLOX tensor decoder.
  • audiornnoise: Forward input metadata.
  • awss3: Support for S3-compatible URIs.
  • awstranscriber2: Add property for setting show_speaker_labels.
  • awstranslate: Expose property for turning brevity on.
  • burn: Add burn-based YOLOX inference element.
  • cea608: Non-relative positioning support.
  • cea708mux: Expose discarded-services property on sink pads.
  • debugseimetainserter: New plugin for testing SEI meta insertion.
  • deepgram: New speech-to-text transcription element.
  • demucs: Add audio source separation element based on demucs.
  • fallbacksrc: Support for encoded inputs.
  • gtk4paintablesink: Propose udmabuf allocator/pool if possible.
  • gtk4paintablesink: New property for configuration window-resize behaviour.
  • hlscmafsink: Support for I-frame-only playlists.
  • elevenlabs: New voice cloner element.
  • gif: New decoder element with support for animations and looping.
  • icecastsink: New icecast sink element.
  • inter: Various new properties to fine-tune behaviour.
  • isobmff: Implement gst::ChildProxy for accessing sinkpads.
  • isobmff: Support for raw audio (ISO 23003-5).
  • isobmff: Support for bayer video formats.
  • isobmff: Write (video) compressorname field.
  • isobmff: mp4mux: Add (limited) support for caps changes.
  • jsontovtt: Add property to enable per-cue line attributes.
  • mccparse: Add support for non-caption VANC data.
  • quinn: Support for QUIC/WebTransport connection/session sharing.
  • quinn: Improve TLS certificate configuration.
  • rtp: rtpmparobustdepay2: New depayloader.
  • rtp: smpte291: New payloader for SMPTE291 ancillary data.
  • speechmatics: Expose mask-profanities property.
  • speechmatics: Support for configuring audio events.
  • speechmatics: Add properties to control speaker identification.
  • s302mparse: New parser for S302M audio.
  • st2038: Add combiner/extractor elements for converting between ST2038 streams and GstAncillaryMeta.
  • speech synthesizers: New compression overflow mode.
  • textaccumulate: New element for accumulating text.
  • threadshare: ts-udpsink: Allow disabling IPv4 or IPv6 socket.
  • tttocea608: Expose speaker-prefix property.
  • validate: Add plugin with check-last-frame-qrcode validate action.
  • webrtc: Add WHEP client and server signallers and whepclientsrc / whepserversink elements.
  • webrtcsink: Add support for VA encoders.
  • webrtcsink: Add support for renegotiation.
  • webrtcsink: Negotiate H264 profile / level correctly.
  • webrtcsink: Support for specifying customs HTTP headers to signalling server.
  • webrtcsrc: Support forwarding encoded data.
  • webrtcsrc: Support request source pads.
  • whisper: New speech-to-text transcription element.

Changed

  • Updated to gtk-rs-core 0.22 APIs.

  • Updated with final GStreamer 1.28.0 APIs and upcoming 1.30 APIs.

  • Updated minimum supported Rust version to 1.92.

  • awspolly: Port improvements from elevenlabssynthesizer.

  • isobmff: fmp4 and mp4 plugins are merged into a single plugin.

  • gtk4: Require at least GStreamer 1.18 instead of 1.16.

  • mccparse: Outputs ST2038 now instead of CEA608/708.

  • quinn: Rename quinnwtserversink to quinnsink and quinwtclientsrc to quinnsrc.

  • threadshare: Relicense to MPL-2.0.

Removed

  • aws: Legacy rusotos3src / rusotos3sink element factories are dropped now.
  • threadshare: ts-rtpjitterbuffer: All its use-cases are covered by rtprecv.
  • webrtchttp: Not removed yet but deprecated in favour of the webrtc plugin.

0.14.5 - 2026-02-28

Fixed

  • audiornnoise: Fix audio level value reporting.
  • awspolly: Fix various panics.
  • dav1ddec: Various fix to allocation query handling.
  • gtk4paintablesink: Fix odd-size subsampling workaround.
  • isobmff: fmp4: Don't overlap durations on fragment header buffers.
  • livesync: Ignore upstream latency when upstream is not live.
  • rtp: basepay: Consider size of header extensions in maximum payload size calculation.
  • rtp: rtprecv: Don't panic if no buffers of a bufferlist can be directly forwarded
  • rtp: rtprecv: Send mandatory events on the RTCP srcpad before buffers.
  • rtp: smpte291: Use video media type instead of application.
  • rtp: smpte291: Use upper-case encoding-name.
  • rtp: smpte291: Drop the current packet after processing if it was empty.
  • speechmaticstranscriber: Fix handling of diarization=none.
  • st2038combiner: Various minor fixes.
  • transcriberbin: Fix latency reporting in various situations.
  • webrtcsink: Don't upscale when mitigating low bitrate.
  • webrtcsink: Handle NVIDIA encoder interfaces changes between versions / platforms.
  • webrtc: Only register data channels for internal use.

Added

  • gtk4paintablesink: Propose udmabuf allocator/pool if possible.
  • gtk4paintablesink: New property for configuration window-resize behaviour.
  • st2038extractor: Add always-add-st2038-pad property.
  • threadshare: ts-udpsink: Allow disabling IPv4 or IPv6 socket.

Changed

  • gtk4: Require at least GStreamer 1.18 instead of 1.16.

0.14.4 - 2025-12-02

Fixed

  • analyticssplitter / combiner: Update to latest batch meta API.
  • audiornnoise: Copy input metadata to output.
  • fmp4mux: Fix EAC-3 datarate calculation and substream writing.
  • fmp4mux: Fix potential deadlock when requesting a pad.
  • gtk4paintablesink: Add property to control the reconfigure-event behaviour.
  • jsongstparse: Don't send error messages on flushing
  • mccparse / sccparse: Don't send error messages on flushing
  • mp4mux: Fix potential deadlock when requesting a pad.
  • ndisrcdemux: Fix audio corruption when padding is used for non-interleaved audio.
  • rtpsmtpe291: New RTP payloader / depayloader for SMPTE 291 ancillary data.
  • st2038: Forward framerate in caps if available and set frame alignment.
  • st2038: Fix checksum calculation.
  • webrtcsink: Fix deadlock
  • webrtcsink: Don't block tokio runtime thread when recalculating latency.
  • webrtcsrc: Clean up EOS/session handling.

Added

  • fmp4mux: Implement childproxy interface.
  • mp4mux: Implement childproxy interface.
  • st2038extractor / combiner: New elements.
  • webrtcsink: Add support for VA encoders.

Changed

  • Fix a couple of new clippy / compiler warnings.
  • Update some dependencies.

0.14.3 - 2025-10-31

Fixed

  • fallbacksrc: Fix custom source re-use.
  • gtk4paintablesink: Implement cropped imports for odd resolutions and padded input frames.
  • livekitwebrtc: Fix deadlock.
  • onvifmetadatapay: Copy metadata from source buffer.
  • reqwest: Use the platform's native certificates again.
  • rtpamrpay2: Set frame quality indicator flag correctly.
  • rtpbasepay2: Re-use last PTS if no PTS is available.
  • rtpbaseaudiopay2: Fix marker bit handling.
  • rtp: Add L8/16/24 RTP payloaders / depayloaders.
  • threadshare: Fix/add latency reporting.
  • threadshare: Fix shutdown in error states.
  • threadshare: Fix flush-start and query handling.
  • ts-audiotestsrc: Act as a pseudo live source by default.
  • tracers: Fix inverted append logic when writing log files.
  • uriplaylistbin: Add details into upstream error message.

Added

  • ts-audiotestsrc: Support more audio formats.

Changed

  • Various dependency updates.
  • Remove constraints on AWS SDK dependencies and tune optimizations.

0.14.2 - 2025-09-18

Fixed

  • analyticscombiner: Fix running with latest GStreamer git main.
  • aws: Ensure pad tasks are stopped during PAUSED->READY state change.
  • cea608overlay: Support non-system memory properly.
  • fallbacksrc: Fix panic during retries in parallel with element shutdown.
  • fallbacksrc: Don't restart source if element is being shut down.
  • fallbacksrc: Fix deadlock when using a custom source element.
  • fallbacksrc: Signal no-more-pads for streams-unaware parent elements.
  • gtk4paintablesink: Also try importing dmabufs if not signalled via caps.
  • gtk4paintablesink: Add support for 10/12/16 bit YUV formats in sysmem.
  • rtpgccbwe: Avoid panic when min-bitrate > max-bitrate.
  • rtpmp4gdepay2: Fix handling of specific caps.
  • rtprecv: Fix deadlock race condition when receiving the first buffer.
  • spotify: Fixes for spotify API changes that broke the element.
  • ts-audiotestsrc: Fix deadlock when setting samples-per-buffer property.
  • ts-inter: Fix latency handling.
  • ts-intersink: Fix deadlock on shutdown.
  • threadshare: Fix potential panics during state changes.
  • transcriberbin: Fix various deadlocks.
  • webrtcsink: Fix setting URI and CA file in signaller.

Added

  • intersink: Allow setting sync=false.
  • intersrc: Allow setting bytes/time/buffers limits.
  • ts-blocking-adapter: New element to translate between threadshare upstream elements and blocking downstream elements.

Changed

  • Various elements were switched from tokio-native-tls to rustls due to the former being unmaintained and buggy.
  • Various dependency updates.

0.14.1 - 2025-08-10

Fixed

  • Various new clippy 1.89 warnings.
  • awstranscriber2 / awstranslate: Handle multiple stream-start events.
  • hlssmultivariantsink: Set correct master playlist version.
  • mpegtslivesrc: Remove leftover debug message.
  • rtpbasepay2: Fix timestamp property's range.
  • rtpbin2: Add examples.
  • rtprecv: Fix deadlock when receiving muxed RTCP on the RTP pad.
  • threadshare: Fix flushing in various elements.
  • transcriberbin: Fix latency handling.
  • transcriberbin: Don't hold mutex while sending caps event.
  • ts-audiotestsrc: Fix element to behave in a more expected way.
  • ts-proxysrc / ts-proxysink: Fix race condition on shutdown.
  • ts-rtpdtmfsrc: Fix various property ranges.
  • ts-intersrc / ts-udpsrc / ts-tcpclientsrc: Fix latency handling.

Added

  • cea608overlay / cea708overlay: Add support for dmabuf, GL and other memory types.
  • threadshare: Add cur-level-XXX properties to queue-like elements.

Changed

  • Update a couple of dependencies.
  • pipeline-snapshot: Reduce WebSocket connection log level.
  • webrtcsink: Move videorate before conversion to potentially improve performance.

0.14.0 - 2025-07-16

Changed

  • Update to gtk-rs-core 0.21 / gtk4-rs 0.10 / gstreamer-rs 0.24.
  • Update various dependencies.
  • Update MSRV to 1.83.
  • gtk4: Update minimum GTK version to 4.6 but require 4.10 by default.

Added

  • analytics: New plugin with relationmeta2onvifmeta element that converts relation metadata to ONVIF metadata.
  • analytics: New analyticscombiner and analyticssplitter elements that allow temporal batching of one or more streams.
  • awspolly: New AWS Polly based text-to-speech element.
  • cdpserviceinject: New element to inject CEA708 CDP service information.
  • dav1ddec: Support decoding into downstream-provided buffer pools.
  • elevenlabs: New speech synthesis elements based on ElevenLabs.
  • fallbacksrc: Add multi-stream support.
  • fmp4mux: Add send-headers and split-at-running-time action signals.
  • fmp4mux: Add support for caps changes.
  • fmp4mux: Add support for writing edts to handle audio priming.
  • fmp4mux: Add support for serialized split-now event.
  • fmp4mux: Add send-force-keyunit, decode-time-offset and start-fragment-sequence-number properties.
  • fmp4mux: Write prft and btrt boxes.
  • fmp4mux: Add support for AC-3/EAC-3.
  • gtk4: Add colorimetry support.
  • gtk4: Add support for YUV memory textures.
  • hlscmafsink: Add new-playlist signal and playlist-root-init property.
  • hlssink3: Support NTP timestamp metadata.
  • janusvrwebrtcsrc: New Janus VideoRoom source element.
  • memory-tracer: New tracer to track memory usage.
  • mp4mux: Add support for edit lists and handle audio priming.
  • mp4mux: Support ISO/IEC 23001-17 uncompressed video.
  • mp4mux: Support HEIF output.
  • mp4mux: Write btrt box.
  • mp4mux: Add support for taic clock information box.
  • ndisrc: Add new clocked timestamp mode that provides a gst::Clock to the pipeline.
  • onvimetadataextractor: New element that extracts ONVIF metadata from buffers that can then be used by rtponvifpay for example.
  • pcap-writer: New tracer to write streams of arbitrary pads as PCAP files.
  • pipeline-snapshot: New tracer that allows to create snapshots of pipelines.
  • quinn: Support multiple stream connections in quinnquicsrc.
  • quinnquicmux/demux: New elements to support QUIC stream multiplexing and support for it in the other elements.
  • quinnroqmux/demux: New elements to support RTP over QUIC (ROQ).
  • quinnserversink/clientsrc: New elements for QUIC-based WebTransport.
  • rtpamrpay2/depay2: New AMR NB/WB RTP payloader / depayloader.
  • rtpbin2: Reduce number of threads and make better use of thread pools.
  • skia: New skia-based compositor element.
  • speechmatics: New transcriber element based on Speechmatics.
  • spotifylyricssrc: New element to retrieve synchronized lyrics from Spotify.
  • closedcaption: Set of new elements that handle ST2038 streams and allow extracting / inserting closed captions into them: st2038ancdemux, st2038ancmux, st2038anctocc and cctost2038anc.
  • streamgrouper: New element that allows combining streams with different group-ids in their stream-start events to use the same one.
  • transcriberbin: Various improvements and fixes.
  • transcriberbin: Add support for speech synthesis.
  • ts-intersrc/sink: New 1:N inter pipeline elements.
  • ts-rtpdtmfsrc: New RTP DTMF source element.
  • ts-proxysink: Add event-types property.
  • ts-udpsrc: Add buffer-size and loop properties.
  • ts-udpsrc/udpsink: Add multicast-iface property.
  • vvdec: New VVC/H266 decoder element using VVdeC.
  • webrtc: Add support for raw payload formats.
  • webrtcsink: Add support for answering SDP offers.
  • webrtcsink: Add generic data channel control mechanism and generic mechanism to forward metas over the control channel.
  • webrtcsink: Add define-encoder-bitrates signal for customizing congestion control behaviour.
  • webrtcsink: Add signal to configure congestion control mitigation modes.

Fixed

  • rtpgccbwe: Handle out-of-order packets better.

0.13.7 - 2025-07-16

Fixed

  • awss3sink: Write to S3 on output stream flush.
  • cea608overlay: Reset output size on flush stop.
  • cea708mux: Improve caption overflow handling.
  • cea708mux: Correctly clip input buffers on the segment.
  • cea708overlay: Reset output size on flush stop.
  • dav1ddec: Use video decoder base class API for latency reporting and notify application about latency changes.
  • gopbuffer: Push GOPs in the correct order on EOS.
  • hlssink3: Use correct closed segment location when writing playlist.
  • janusvrwebrtcsink: Various websocket handling improvements.
  • mccparse: Use correct byte representation for "U".
  • rtpbin2: Fix race condition when handling serialized queries.
  • rtpbin2: Fix panic caused by race condition when retrieving clock-rate.
  • rtpbin2: Send SSRC collision event in the correct direction.
  • rtpbin2: Fix usage of min RTCP interval in senders.
  • rtpbin2: Drop packets with an unknown payload type or clock-rate instead of panicking.
  • rtpbin2: Improve detection of RTP inline, rtcp-mux RTCP packets.
  • tttocea608: Disallow Pango markup as input.
  • tttocea708: Handle caption overflows better.
  • tttocea708: Disallow Pango markup as input.
  • webrtcsink: Fix a couple of deadlocks.
  • webrtcsink: Don't require an UUID for discovery to speed up startup on systems with low entropy.

0.13.6 - 2025-05-13

Fixed

  • buffer-lateness: Avoid integer overflows when logging.
  • cdg: Fix division by zero in the typefinder.
  • cea708mux: Improve support for overflowing input captions.
  • dav1ddec: Use downstream buffer pool to copy into if videometa is not supported by downstream.
  • dav1ddec: Fix handling of incomplete colorimetry information.
  • dav1ddec: Drain decoder on caps changes.
  • fmp4mux: Fix latency configuration for properties set during construction.
  • fmp4mux: Write v0 tfdt box if decode time is small enough for improved compatibility.
  • fmp4mux: Fix handling of multiple tags per taglist.
  • fmp4mux: Parse language tags correctly as ISO 639-2T.
  • fmp4mux: Fix tfdt value to be actually according to the spec.
  • fmp4mux: Fix handling of negative DTS in composition time offset.
  • gtk4paintablesink: Consider surface scale factor when proposing window dimensions to improve rendering quality with scale factors > 1.
  • mp4mux: Don't write composition time offsets if they're all zero.
  • mp4mux: Fix handling of multiple tags per taglist.
  • mp4mux: Store language tags per stream and not globally.
  • mp4mux: Parse language tags correctly as ISO 639-2T.
  • mpegtslivesrc: Fix deadlock caused by pushing buffers downstream while keeping the state locked.
  • mpegtslivesrc: Increase threshold for PCR / PTS discont detection.
  • tttocea708: Fix origin-row handling for roll-up modes.
  • webrtc/signalling: Don't error out on messages from unknown sessions.
  • webrtcsink: Emit signals without holding mutexes, fix locking order and various deadlocks.

Added

  • dav1ddec: Add support for RGB encoded AV1.
  • fmp4mux: Write lmsg compatibility brand into the last fragment.

Changed

  • Various updated dependencies.
  • colordetect: Move to videofilter base class and allow working in passthrough mode.

0.13.5 - 2025-03-04

Fixed

  • cdg: Fix typefind errors on specific file sizes.
  • cea608overlay: Ensure lines are rendered in order.
  • cea608overlay: Clear output on each switch.
  • cea608overlay / cea708overlay: Fix field lookup for S334-1A captions.
  • cea608tocea708: Fix S334-1A field flag usage.
  • closedcaption: Fix rollup mode not always using the correct base row.
  • closedcaption: Only increase dtvcc packet sequence if there are services.
  • fmp4mux: Fix state cleanup on flush.
  • fmp4mux: Handle language/orientation tags as per-stream tags.
  • hlssink3: Write playlist atomically.
  • inter: Don't leak hashmap objects.
  • mpegtslivesrc: Handle zero-byte adaptation fields correctly.
  • mpegtslivesrc: Consider initial calibration of the clock.
  • mpegtslivesrc: Ignore NIT programs from the PAT.
  • onvifmetadatacombiner: Unset PTS/DTS of metadata.
  • rtpbasepay / rtpbasedepay: Only forward buffers after a segment event.
  • rtpac3depay2: Fix handling of non-fragmented payloads.
  • togglerecord: Drop locks before sending queries to avoid deadlocks.
  • tttocea708: Don't reset service writer for every incoming caption.
  • whipserversrc: Handle concurrent POSTs.

Added

  • mpegtslivesrc: Take adaptation field discontinuity flag into account.
  • uriplaylistbin: Add caching support

Changed

  • Updated various dependencies.

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