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# PipeWire 1.3.82 (2025-02-06)
This is the second 1.4 release candidate that is API and ABI
compatible with previous 1.2.x and 1.0.x releases.
## Highlights
- Various pw-stream improvements: timing information fixes,
avoid locking buffers in some cases and an improved drain
event.
- A new Telephony D-BUS API compatible with ofono.
- Documentation fixes and updates.
- More small fixes and improvements.
## PipeWire
- Improve timing information when rate is unknown.
- Avoid locked buffers in pw_stream in some cases.
- Improve pw_stream drain event emission.
- Improve manager socket handling. Applications can avoid hardcoding
the sockets so that they will respect the config settings.
## modules
- Fix header size calculation when using ipv6. (#4524)
## SPA
- Optimize byteswapped s16 conversions.
- Improve event handling for internal events.
- Optimize negiotiation when in convert mode, prefer the format
of the follower in adapter.
- Fix EnumPortConfig for videoadapter without converter.
- Fix libcamera property buffer size.
## Pulse-server
- Add systemwide systemd files.
## JACK
- Add a UMP example.
- Use the new JackPortMIDI2 flag to mark UMP ports to JACK.
## Bluetooth
- Support BAP hardware volume.
- Add a Telephony DBUS API.
## GStreamer
- Disable buffer pools for audio by default.
## Docs
- Improve the module documentation.
Older versions:
# PipeWire 1.3.81 (2025-01-23)
This is the first 1.4 release candidate that is API and ABI
compatible with previous 1.2.x and 1.0.x releases.
In addition to all the changes backported to 1.2.x, this release
also contains some new features:
## Highlights
- UMP support was added with MIDI 1.0 and MIDI 2.0 support in the ALSA
sequencer plugin. By default PipeWire will now use MIDI 2.0 in UMP
messages to transport MIDI in the graph, with conversions to/from legacy
MIDI where required. This requires UMP support in the kernel.
- client-rt.conf is no longer supported. Custom changes made to this
config should be moved to client.conf. Clients that try to load the
client-rt.conf will emit a warning and be directed to client.conf
automatically for backwards compatibility.
- The module-filter-chain code was moved to a new filter-graph plugin. This
made it possible to add filter-graph support directly in audioconvert. It
is now possible to run up to 8 run-time swappable filter-graphs inside
streams and nodes. This should make it easier to add effects to streams
and device nodes.
- Bluetooth support for BAP broadcast links and support for hearing aids
using ASHA was added.
- Many more bugfixes and improvements.
## PipeWire
- Nodes are now only scheduled when ready to signal the driver.
- Add slovenian translation. (#4156)
- Link errors are handled better.
- The videoadapter is now enabled by default but no videoconverter
is loaded yet by default.
- Streams now have support for ProcessLatency.
- Streams now have a method to emit events.
- The RequestProcess event and command can now pass around extra
properties.
- Local timestamps are now used for logging.
- client-rt.conf is no longer supported. Custom changes made to this
config should be moved to client.conf. Clients that try to load the
client-rt.conf will emit a warning and be directed to cliert.conf
automatically to preserve backwards compatibility.
- pw_stream now has an API to return unused buffers.
## modules
- module-combine-stream can now mix streams.
- Links in error are now destroyed by link-factory.
- The netjack2 driver can now also create streams that autoconnect when
specified. (#4125)
- Many updates and bugfixes to the RTP modules.
- The netjack2 driver can now bind to a custom IP and port pair. (#4144)
- The loopback module and module-raop have support for ProcessLatency, which
can be used to query and update the latency.
- The profiler module can now reduce the sampling rate.
- The filter-chain was optimized some more.
- The filter-chain gained some more plugins: param_eq, ebur128, dcblock.
- Support for fftw based convolver was added.
- Some module arguments can now be overridden.
- The VBAN receiver now creates new streams per stream name. (#4400)
- The RTP SAP module is now smarter with generating new SAP messages.
- The RTP source can now be paused when no data is received. (#4456)
## tools
- pw-cat can now stream most formats from stdin/stdout.
- pw-profiler has a JSON dump option to dump the raw profiler data.
- pw-cli now supports unload-module. (#4276)
## SPA
- The resampler can precompute some common coeficients now at compile
time.
- UMP support was added with MIDI 1.0 and MIDI 2.0 support in the ALSA
sequencer plugin. By default PipeWire will now use MIDI 2.0 in UMP
messages to transport MIDI in the graph, with conversions to/from legacy
MIDI where required.
- Control types can now be negotiated.
- Support for writing ALSA bind controls was added.
- The ALSA sequencer now has better names for the ports.
- The F32 to S32 conversion now uses 25 bits for an extra bit of
precision.
- libcamera controls can now be set in all cases.
- The videoadapter has been improved and a dummy and ffmpeg based
videoconverter plugin was added.
- Negotiation was improved in audioadapter. First a passthrough format
is tried.
- Some JSON helper functions were added and some duplicate code removed
or simplified.
- Add support for RISC V CPU detection and add many optimizations in
the audio converters.
- Add an option to disable ALSA mixer path select. (#4311)
- Fix a potential bug with the cleanup of the loop queues.
- ALSA nodes now dynamically adjust the DLL bandwidth based on average
measured variance.
- The loop invoke queue was made more efficient and make it possible to
invoke from multiple threads.
- The filter-chain code was moved to a new filter-graph plugin.
- Most function macros are now static inlined and can also be built into a
libspa.so file. This should improve language bindings.
- V4l2 clock information was improved.
- Supported IEC958 codecs are now autodetected via ELD info.
- Audioconvert was optimized some more.
- Audioconvert can now include filter-graphs in its processing.
- webrtc-audio-processing-2 is now supported in AEC.
- The resampler now reports the delay and subsample delay. Also the
delay is reported in the samplerate of the input.
- The ALSA sequencer now handle kernels without UMP support. (#4507)
## Pulse-server
- Add quirk to block clients from making record and playback streams.
- The corked state is now set on stream to always report this state
correctly to other clients.
- Readiness notification was added to the pulse server with the
PIPEWIRE_PULSE_NOTIFICATION_FD environment variable. (#4347)
- The pulse.cmd config now supports conditions.
- A bug in clearing the ringbuffer was fixed. (#4464)
## GStreamer
- Support for the default devices was added to the deviceprovider. (#4268)
- The graph clock is now used as the source for the GStreamer clock.
- The sink now does some rate control.
## ALSA
- The ALSA plugin now supports DSD when explicitly enabled.
## JACK
- JACK now supports 2 new extension formats for OSC and UMP.
- JACK clients can receive UMP MIDI1 or MIDI2 messages when using
the new UMP port format extension.
- JACK now reports the PipeWire version in the minor/micro/proto.
- Implement more jackserver functions.
## Bluetooth
- Support BAP broadcast links.
- Support for ASHA was added.
- Delay reporting in A2DP sources was improved.
## Examples
- 2 new examples of pw-stream using spa_ringbuffer were added.
## Docs
- Many updates to the man pages.
- More documentation about thread safety of functions in stream
and filters. (#4521)
# PipeWire 1.2.7 (2024-11-26)
This is a bugfix release that is API and ABI compatible with the previous
1.2.x and 1.0.x releases.
## Highlights
- Backport support for lazy scheduling.
- Handle the case where processing would stop when an ALSA driver is
destroyed.
- Add support for v4l2loopback in the v4l2 plugin.
- Small bug fixes and improvements.
## PipeWire
- Invalidate the proxy ID when removed.
- Backport support for lazy scheduling.
- Fix profiler stats for async nodes.
- Fix EARLY_PROCESS again in pw-stream. (#3480)
## Modules
- Fix a crasher issue when nodes are created in the wrong order in
module-filter-chain.
- Fix unmap bug in lv2 uri tables.
- Add ratelimit to jack-tunnel xruns.
- Remove hardcoded limit in filter-chain sofa plugin.
- Handle the MTU size correctly in module-rtp and handle large MTUs.
(#4396)
- Fix JSON float parsing errors in equalizer module. (#4418)
## SPA
- Fix crash in audiotestsrc when using spa-inspect (#4365).
- Improve JSON float infinity checks.
- Improve resampler performace a little.
- Make audioconvert only output when there is something to output.
- Fix regression in v4l2 port flags which would disable support for
EXPBUF.
- Handle the case where an ALSA driver is destroyed and the follower
becomes a driver. Processing would stop. (#4401)
- Add support for v4l2loopback in the v4l2 plugin.
## Pulse-server
- Give a better error message when running out of fds.
- Ensure positive latency reporting.
## GStreamer
- Fix memory leak in deviceprovider.
- Fix locking when emitting an error.
## Tools
- Fix pw-dot link labels.
# PipeWire 1.2.6 (2024-10-23)
This is a bugfix release that is API and ABI compatible with the previous
1.2.x and 1.0.x releases.
## Highlights
- The filter-chain param changes were not aggregated correctly, causing some
param changes to be ignored. (#4331)
- Clear the JACK io ports correctly when stopping to avoid crashes. (#4337)
- Some more small fixes and improvements.
## PipeWire
- Stream states are now updated based on the underlying node state.
- Exported nodes now have their state change done synchronously so that the
server can immediately start the driver and avoid some initial xruns.
- Improve stream flush handling and improve the docs.
- Don't send mix_info to destroyed ports to avoid some errors in the
JACK clients.
## Modules
- The filter-chain param changes were not aggregated correctly, causing some
param changes to be ignored. (#4331)
- The filter-chain now correctly optimizes unlinked nodes in all cases.
## SPA
- ALSA PCM node properties are now no longer overwritten with card properties.
(#4135)
- Increase the adapter retry count to avoid xruns in some cases. (#4334)
- Fix potential crash in cleanup of ALSA nodes.
## Bluetooth
- Fix a crash with broadcast sinks.
- Improve compatibility with Phonak hearing aids.
- Don't exit when DBus goes down.
## JACK
- Clear the io ports correctly when stopping to avoid crashes. (#4337)
## Docs
- Backport docs from master.
# PipeWire 1.0.9 (2024-10-22)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Fix an fd leak and confusion in the protocol that would cause leaks and
wrong memory to be used.
- Fix bug where the mixer would not be synced correctly after selecting
a port, leaving the audio muted. (#4084)
- Backport v4l2 systemd-logind support to avoid races when starting.
(#3539 and #3960).
- Other small fixed and improvements.
## PipeWire
- Fix a bug where renegotiation would sometimes fail to deactivate a link.
- Fix an fd leaks and confusion in the protocol.
## modules
- Fix a use-after-free in the rt module when stopping a thread.
## SPA
- Fix bug where the mixer would not be synced correctly after selecting
a port, leaving the audio muted. (#4084)
- Fix a compilation issue with empty initializers. (#4317)
- Backport v4l2 systemd-logind support to avoid races when starting.
(#3539 and #3960).
- Fix a potential crash when cleaning ALSA nodes.
## JACK
- align buffers to the max cpu alignment in order to allow more
optimizations.
# PipeWire 1.2.5 (2024-09-27)
This is an important bugfix release that is API and ABI compatible with the
previous 1.2.x and 1.0.x releases.
## Highlights
- Fix an fd mismatch in the protocol in some cases that could lead to
fd leaks and crashes.
- Fix a bug where the mixer was not updated after setting the port, which would
cause muted audio at boot or resume from suspend.
- Fix a potential use-after-free in module-rt when stopping a thread.
- Cached objects are now freed in the JACK API to avoid memory leaks.
- Some more fixes and improvements.
## PipeWire
- RequestProcess commands are now only sent after the node completes
the state change to RUNNING.
- More FreeBSD fixes.
- Handle ACTIVE links going to < PAUSED as well. This improves
renegotiation in some cases.
- Fix an fd mismatch in the protocol in some cases that could lead to
fd leaks and crashes.
## Modules
- Many of the network modules can now also accept hostnames instead of
IP addresses.
- Fix a potential use-after-free in module-rt when stopping the thread.
## SPA
- Support for elogind was added.
- Some more errors are checked when converting JSON to POD. (#4313)
- Fix a bug where the mixer was not updated after setting the port, which would
cause muted audio at boot or resume from suspend. (#4084)
## JACK
- The BBT transport handling was improved. Some fields were added to be able
to handle the JACK semantics correctly. (#4314)
- Buffers are now aligned according to the maximum CPU alignment instead of
the hardcoded 16 bytes alignment.
- Cached objects are now freed correctly.
## Doc
- Some small doc updates. (#4272)
# PipeWire 1.2.4 (2024-09-19)
This is a bugfix release that is API and ABI compatible with the
previous 1.2.x and 1.0.x releases.
## Highlights
- Avoid a crash in cleanup of globals. (#4250)
- Use systemd-logind to scan for new devices in v4l2.
- Some more bugfixes and improvements.
## PipeWire
- Avoid a crash in cleanup of globals. (#4250)
- Improve RequestProcess dispatch.
## Tools
- Improve float parsing. (#4234)
## SPA
- Clear the ringbuffer when stopping in libcamera.
- Use systemd-logind to scan for new devices in v4l2. (#3539, #3960)
- Queue dropped first buffer in v4l2.
- Unlink pcm devices when moving drivers to avoid broken pipe.
## JACK
- Emit buffer_size callback in jack_activate() to improve
compatibility with GStreamer. (#4260)
# PipeWire 1.0.8 (2024-09-19)
This is a small bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Backport support for explicit sync.
- FFADO backport fixes.
- Fix some races in JACK.
- More small fixes and improvements.
## PipeWire
- Add support for mandatory metadata and explicit sync metadata.
- Fix RequestProcess again.
- Include config.h to use malloc_trim() when cleaning nodes.
- Avoid crash when destroying a global. (#4250)
## Modules
- FFADO fixes: improve timing reporting, avoid some xruns, improve
samplerate and period size handling, implement freewheeling.
- Decrease memory usage of the profiler.
## Tools
- Fix pw-dump metadata changes fix. (#4053)
- Support large params in pw-cli. (#4166)
## SPA
- Improve libcamera devices reporting to properly filter out duplicates in
all cases.
- Improve property reporting in v4l2.
- Fix lost buffer in v4l2.
## Bluetooth
- Improve compatibility with some devices.
## JACK
- Fix some races when shutting down.
- Fix rt-priority on the main thread when using custom thread create
function. (#4099)
## ALSA
- Handle format renegotiation. (#3856)
# PipeWire 1.2.3 (2024-08-22)
This is a bugfix release that is API and ABI compatible with the
previous 1.2.x and 1.0.x releases.
## Highlights
- Implement freewheeling support in the FFADO driver. Also improve
buffersize and samplerate handling.
- Improve some locking on spa_loop. Remove a possible deadlock when
the queue was full.
- Allocate more space for the libcamera devices string to properly
deduplicate libcamera and v4l2 devices.
- Some more bugfixes and improvements.
## PipeWire
- Improve activation state changes and xrun detection some more.
(#4182)
- Avoid a memory leak when a link in error is destroyed.
## Modules
- Improve samplerate and buffersize handling in FFADO driver so that
it is possible to force a rate and buffer size.
- Implement freewheeling support in the ffado driver.
- Always set the server side clock.quantum-limit on nodes. This fixes
a buffer size problem in Midi-bridge. (#4005)
## SPA
- Improve some locking on spa_loop. Remove a possible deadlock when
the queue was full. (#4114)
- Allocate more space for the libcamera devices string to properly
deduplicate libcamera and v4l2 devices.
- Fix a potential race when enumerating v4l2 udev devices. (#3960)
## Bluetooth
- Improve compatibility with some devices (Soundcore Motion 300).
## Tools
- pw-cli can now handle arbitrarily large input and params. (#4166)
- Avoid some compiler warnings in pw-top.
# PipeWire 1.2.2 (2024-07-31)
This is a bugfix release that is API and ABI compatible with the
previous 1.2.x and 1.0.x releases.
## Highlights
- Fix some more fallout of the async nodes rewrite. Fixes some
crackling, xruns and possibly also some crashes in some cases.
- Fix freewheeling timeouts in case of xruns. This fixes ardour export.
- Fix event mixdown in JACK. Fixes qsynth and possibly other apps.
- Some more small fixes and improvements.
## PipeWire
- Add a new SPA_IO_CLOCK_FLAG_XRUN_RECOVER flag when the process function
is called because of xrun recovery.
- Properly stop nodes in all cases, this avoids spurious xruns and
scheduling errors. (#4122)
- Make sure async nodes receive an async link in all cases. Do the
processing of source output ports slightly differently to make sure we
don't cause latency for sources. (#4138) (#4133)
- Fix some races when negotiating and starting nodes. (#4094)
- Actually include the config.h header to use malloc_trim() to reduce
memory usage in pulse-server.
## Modules
- Avoid unloading some modules on stream errors because it is possible to
recover from the error. (#4121)
- Fix a (harmless) warning in module-rtp because of comparing samples and
time. (#4095)
## SPA
- Let the freewheel driver detect xrun recovery and handle the timeouts
correctly. This fixes an issue with ardour export.
- Remove the HDMI/AC3 profiles. they turn out to fail on some hardware
with no way to detect this.
- Signal the eventfd when the loop is full to make sure the other thread
is woken up to process the queue.
## JACK
- Don't check timestamps when mixing down events. The timestamps are only
checked when writing new events with the public API. This fixes an
issue where qsynth would not receive midi events anymore.
- Fix the jack_get_time() function, it was returning nano instead of micro
seconds.
# PipeWire 1.2.1 (2024-07-12)
This is a bugfix release that is API and ABI compatible with previous
the previous 1.2.0 release and the 1.0.x releases.
## Highlights
- Fix a regression in the node activation counters that would break audio
when using KODI.
- Fix a regression in ardour export because of mishandling of sync groups.
- Fix a regression in KDE screen preview because of the new async
scheduling.
- Fix a regression in context.exec argument parsing that would break some
existing scripts.
- More small bug fixes and improvements.
## PipeWire
- Fix a regression in the node activation counters that would break audio
when using KODI. (#4087)
- Fix a regression in ardour export because of mishandling of sync groups.
(#4083)
- Fix a regression in KDE screen preview because of the new async
scheduling. Disable async for driver nodes. (#4092)
- Slightly improve node shutdown to cause less xruns.
- Fix a regression in context.exec argument parsing that would break some
existing scripts.
- Support custom thread create functions.
## Modules
- Improve snapcast address parsing. (#4093)
## SPA
- Fix multiple %f parsing in ACP for the new plug+a52 profiles.
- Improve v4l2 param generation. Improve recovery when framesize or rates
are unknown, support vivid. (#4063)
## JACK
- Use the custom thread create function to correctly let module-rt kit
manage threads so that we don't end up with priorities on the wrong
threads. (#4099)
## GStreamer
- Fix a crash when destroying a stream.
# PipeWire 1.2.0 (2024-06-27)
This is the 1.2 release that is API and ABI compatible with previous
1.1.x and 1.0.x releases.
This release contains some of the bigger changes that happened since
the 1.0 release last year, including:
* Support for asynchronous processing has been implemented. Nodes can choose
(or be forced) to be scheduled asynchronously. The graph will not wait for
the output of the node to continue processing but it will use the output
of the previous cycle (or silence) instead. This adds one cycle of latency
but it can avoid having some nodes blocking the processing graph. Non realtime
streams and filters now also use this asynchronous processing instead of
their own slightly broken version.
* The concept of node.sync-group was added. This groups nodes with overlapping
sync-group together when one of them sets the node.sync = true. This is now
used to make sure all nodes are scheduled together when JACK transport is
started so that they all see the same transport time.
* Config parsing errors are reported earlier and much better with line and
column numbers where the parsing started to fail.
* Add support for mandatory metadata when negotiating buffer parameters. This
can be used to only negotiate extra buffer planes when certain metadata is
negotiated. One use case is the explicit sync support that requires 2
extra fds for the timelines.
* Explicit sync metadata and support was added.
* Support was added for making and using multiple data-loops in the server
and clients. Support for CPU affinity and priorities was added to the
data-loops as well.
* The log topic debug levels can now be changed at runtime with metadata.
The log levels in the pulse server can be dynamically changed with a
/core message.
* The UCM conflicting devices patches were merged.
* Add snapcast-discover module to stream to snapcast servers.
* Rework how peers are linked and the counters are updated. Resume the
peers when a node is unlinked and not yet processed. This should cause
less occasional dropouts in the graph when reconnecting things.
* Many GStreamer element updates.
* Many more fixes and improvements.
Enjoy the summer vacation!
## Highlights (since the previous 1.1.83 release)
- Small fixes here and there.
## PipeWire
- Compilation fixes after enabling -Werror=float-conversion
## Modules
- The module-rtp-sap now propagates the cleanup.sec property to the
rtp-source and the rtp-source now sets a property with the receiving
status.
- Fix for ROC 0.3, explicitly specify sender encoding. (#4070)
- Some fixes to the RAOP sink module, including a format fix for 32 bit
machines.
## Tools
- Fix pw-cli monitoring code.
## SPA
- Revert peer_enum_params again because it was not used and flawed.
- Fix multichannel processing in webrtc AEC.
## GStreamer
- Logging improvements.
- Fix a race in the bufferpool activation.
## Bluetooth
- Improvements to BAP broadcast code parsing.
# PipeWire 1.1.83 (2024-06-17)
This is the third and hopefully the last 1.2 release candidate that is
API and ABI compatible with previous 1.0.x releases.
Some last minute changes went in to clean up the node activation and
scheduling that justify another pre-release.
## Highlights
- Rework how peers are linked and the counters are updated. Resume the
peers when a node is unlinked and not yet processed. This should cause
less occasional dropouts in the graph when reconnecting things.
- Improve xruns in module-ffado.
- Many GStreamer element updates.
- More fixes and improvements.
## PipeWire
- Rework how peers are linked and the counters are updated. Resume the
peers when a node is unlinked and not yet processed. This should cause
less dropouts in the graph when reconnecting. (#4026)
- Improve debug of xruns.
- Evaluate node.rules and device.rules before loading the plugin so that
extra properties can be passed to the plugin init function.
## Modules
- Improve timing reporting in module-ffado some more.
- Prealloc less memory in the profiler by default.
- Improve xrun handling in module-ffado.
## Tools
- Fix a crash in pw-link when a link fails.
- Fix pw-dump update for metadata. (#4053)
## SPA
- Improve handling of controls. (#4028)
- Fix the string size in v4l2 to hold the device and vendor id.
- Support meta_videotransform on buffers in v4l2. This can be used to
signal that the buffer was rotated for example.
- Add HDMI/AC3 profile to ALSA when supported.
- Make it possible to disable the webrtc dependency
## GStreamer
- Improve caps handling in the elements.
- Set buffer duration when we can.
- Post an element error when all the elements buffers are removed.
(#1980)
- Improve DMA_DRM caps selection.
- Some refactoring work.
- Improve state handling in the elements.
## JACK
- Improve how links are activated.
- Fix some races when freeing memory.
## Bluetooth
- Support multiple BIS in the broadcast source.
# PipeWire 1.1.82 (2024-05-24)
This is the second 1.2 release candidate that is API and ABI
compatible with previous 1.0.x releases.
Not so many things needed to be fixed so this might already be the
last prerelease if everything goes well...
## Highlights
- Fix problem when moving nodes that could cause nodes to be scheduled
wrongly and cause errors. (#4017)
- Add snapcast-discover module to stream to snapcast servers.
- Work around wrong kernel provided MTU for USB controllers.
- Fix some spelling mistakes all over the codebase.
- More small fixes and improvements.
## PipeWire
- Remove the private cleanup.h header and use the public SPA version.
- Fix problem when moving nodes that could cause nodes to be scheduled
wrongly and cause errors. (#4017)
## Modules
- Handle IPv6 in module-protocol-simple and support port allocation.
- Add snapcast-discover module to stream to snapcast servers.
## Bluetooth
- Work around wrong kernel provided MTU for USB controllers.
# PipeWire 1.0.7 (2024-05-24)
This is a small bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Fix a potential race/crash.
- Fix some problems with negotiation of large integers and floats.
- Fix JACK sysex MIDI event handling.
- Some more smaller fixes and improvements.
## PipeWire
- Fix a potential race when adding/removing a port to be scheduled.
## Modules
- Fix FFADO default device handling. (#4023)
## SPA
- Fix in integer overflow and float/double compare in POD.
## JACK
- Copy larger MIDI events correctly.
# PipeWire 1.1.81 (2024-05-16)
This is the first 1.2 release candidate that is API and ABI
compatible with previous 1.0.x releases.
In addition to all the changes backported to 1.0.x, this release
also contains some new features:
## Highlights
- Support for asynchronous processing has been implemented. Nodes can choose
(or be forced) to be scheduled asynchronously. The graph will not wait for
the output of the node to continue processing but it will use the output
of the previous cycle (or silence) instead. This adds one cycle of latency
but it can avoid having some nodes blocking the processing graph. Non realtime
streams and filters now also use this asynchronous processing instead of
their own slightly broken version.
- The concept of node.sync-group was added. This groups nodes with overlapping
sync-group together when one of them sets the node.sync = true. This is now
used to make sure all nodes are scheduled together when JACK transport is
started so that they all see the same time.
- Config parsing errors are reported earlier and much better with line and
column numbers where the parsing started to fail.
- Add support for mandatory metadata when negotiation buffer parameters. This
can be used to only negotiate extra buffer planes when certain metadata is
negotiated. One use case is the explicit sync support that requires 2
extra fds for the timelines.
- Support was added for making and using multiple data-loops in the server
and clients. Support for CPU affinity and priorities was added to the
data-loops as well.
- The log topic debug levels can now be changed at runtime with metadata.
The log levels in the pulse server can be dynamically changed with a
/core message.
- The UCM conflicting devices patches were merged.
## PipeWire
- snap support has been added.
- Implement async processing. (#3509)
- Support for explicit sync was added.
- Config parsing errors are reported earlier and much better.
- A -P option was added to provide extra properties to the context. This can be
used to enable some features that use rules.
- properties.rules was added to enhance properties based on some rules.
This deprecates the vm.overrides.
- Support was added for security-context. This makes it possible for a flatpak
to request a socket with specific properties from pipewire to mount in the
flatpak. The session manager can then assign permissions based on the connection
properties.
- Support for fixed arrays in pw_array was improved.
- PipeWire server and clients can now use multiple threads to process the nodes
in parallel.
- device.rules and node.rules were added to update device and node properties
based on rules.
- device.param and node.param can now be used to configure params when devices
and nodes are created.
- Memory will now try to use MFD_NOEXEC_SEAL.
- The driver id of a node is now placed in the properties.
- A potential race was fixed when adding and removing ports to the scheduling
lists.
## Modules
- Priorities for the FFADO threads can be configured now.
- The loopback module now has support for up and downmixing.
- Extra properties can now be configured per native-connection socket.
- The pulse-tunnel can now automatically reconnect when the connection is
broken.
- The RTP module now supports the PTP management protocol.
- The RTP sender can now use a timer to send out multiple packets per
quantum.
- A new module was added for loading Parametric EQ.
- The simple-protocol module now has per stream configurable properties
and can also be used to interface with a snapcast server.
- Support for local services was added to raop, rtp and pulse avahi
discoverers. Support for IPv6 on local services was added to RAOP.
## SPA
- Support for reporting JSON parsing errors has been added.
- Some extra checks are added when iterating POD structures.
- Port and profiles can now be hidden from ALSA nodes with
api.acp.hidden-ports and api.acp.hidden-profiles properties.
- The UCM conflicting devices patches were merged.
- Profiles and Routes can now also be set by name.
- Hires timestamps are now used when possible in IRQ based scheduling to
get more accurate wakeup times.
- udev can now be an optional dependency.
- audioadapter now has an option to automatically configure its ports.
- Camera rotation was added to the libcamera node.
- invoke on loops can now be done from multiple threads at the same time.
- Make sure we use CLOCK_MONOTONIC everywhere in the io_clock.
- Vulkan bit and convert filters were added.
- ALSA will now always read the HW ringbuffer pointer when followers are
not on the same card.
- Support for larger MIDI sysex messages was improved. Configuration of
the client input and output pool was added. (#4005)
## Bluetooth
- Support Google OPUS codec.
- Support the LC3-SWB codec.
- Support the AAC-ELD codec.
- Broadcast source configuration support was added.
## pulseaudio-server
- The GSettings schemas are now optionally installed.
- Extensions were moved to the modules.
- The log level of the pulse server can dynamically be changed with
a core object message.
- snap access control was added to pulse-server.
- The old pacmd describe-module functionality is now implemented with
a core message pipewire-pulse:describe-module.
- An option was added to disable module loading and unloading.
## JACK
- OSC messages can now also be placed in JACK MIDI and the translation
layer will detect and tag the right PipeWire control message types.
- A jack.other-connect-mode was added to limit the connections that an
app can do to ports it doesn't own.
- The way the transport is started and how the nodes are grouped together
in the transport was improved using the new sync groups. (#3850)
- Fix large MIDI messages handling. (#4005)
## ALSA
- Fix format renegotiation. (#3858)
- Handle period events better. (#3676)
- Improve handling of the eventfd wakeups.
## GStreamer
- The GStreamer elements can now negotiate and use DMABUF.
## Tools
- The T flag is used in pw-top when the transport is running.
- A new pw-container tool was added to start a new security context and
run an application in it.
- pw-dot handles properties with quotes better. Nodes are grouped with the
node.link-group.
- pw-link has a --wait option to wait for all links to be created.
# PipeWire 1.0.6 (2024-05-09)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- A bitfield race was fixed that could cause some crashes or undefined
behaviour when moving nodes between drivers.
- Fix to some invalid memory access in the pw-mon and pw-dump.
- A regression in kodi with IEC958 formats playback was fixed.
- A race in the ALSA plugin was fixed when updating the eventfd.
- Improvements and fixes to module-combine-stream.
- Negotiation was improved in pipewiresrc.
- Some more small fixes and improvements.
## PipeWire
- Context properties are now set early so that client properties can be
matched with rules.
- A bitfield race was fixed that could cause some crashes or undefined
behaviour when moving nodes between drivers.
## Tools
- Fix failure to hide properties in pw-mon. (#3997)
- Fix some memleaks and a crash in pw-dump. (#4001)
## Modules
- The combine-stream module now prevents resampling to avoid broken
audio because of different samplerates.
- Fix a potential double free in module-loopback when calculating the
delay. (#3748)
- The FFADO module now only starts when ports are negotiated to avoid
startup races. (#3968)
- The combine-stream module will now forward tags.
## SPA
- Monitor volumes are now also clamped to the min/max volumes. (#3962)
- V4l2 and libcamera now encodes the device ids into a JSON array. This
is part of the deduplication code of devices.
- A regression in kodi with IEC958 formats playback was fixed.
## Bluetooth
- Improved buffer handling and queued data when stopping.
## ALSA
- A race was fixed when updating the eventfd. (#3711)
## GStreamer
- Handle some errors better instead of crashing. (#3994)
- Fix a memleak in the stream params handling.
- Negotiation was improved in pipewiresrc.
# PipeWire 1.0.5 (2024-04-15)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- pw_stream can now report timestamps on buffers and the expected
amount of samples for the resampler.
- The GStreamer element now has more correct timestamps using the new
pw_stream timestamps as a fallback.
- The FFADO module now handles suspend and resume better.
- A regression in v4l2 was fixed when parsing malformed filters.
- A potential memory/fd leak was fixed in client-node.
- Many more small bugfixes and improvements.
## PipeWire
- pw_stream now reports the expected resampler input or output size in
the pw_time structure. (#3750)
- pw_stream now also adds a time field to the buffer, which contains the
time of the graph when the buffer was received in the stream.
- Fix a compiler error when compiling with -Werror=shadow. (#3915)
- The config parser will warn when invalid config is detected.
## Modules
- The FFADO module now opens and closes when suspending. This fixes some
problems when FFADO properties are changed while suspended. (#3558)
- Filter-chain will now warn when invalid config is detected.
- Echo-cancel will now handle manage the state of the echo-cancel plugin
better, making sure run() is not called after deactivate().
- Fix some potential memory/fd leaks in client-node.
## SPA
- Improve reading the bound ALSA controls.
- The resampler can now also report the number of expected output samples.
- The ALSA ACP device objects have some more properties like the card.id
and alsa.components. (#3912)
- Fix a potential string corruption when parsing JSON strings.
- V4l2 now sets the latency on the port. (#3910)
- alsa-udev now has an option to expose the device even if busy. (#3914)
- Improve null-audio-sink channel handling. (#3931)
- v4l2 will now drop the first frame because it often contains wrong
timestamps or garbage. (#3910)
- A regression in v4l2 was fixed where invalid/empty properties in the
filter would make it error early. (#3959)
## GStreamer
- The source now falls back to the new pw_buffer time for the timestamps.
## Docs
- Sync with the master branch.
# PipeWire 1.0.4 (2024-03-13)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Track memfd better to avoid inconsistent memory. Also make sure the
mixer info is removed correctly in all cases on destroyed ports.
- Correctly handle removed objects in the metadata.
- Add an option to set the server and client priorities instead of using
a hardcoded value of 88.