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# 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 wakup 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.
Older versions:
# 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.
- The FFADO module has been fixed. Audio and MIDI now works with
the same latency as the JACK driver. This has now also been
tested with a Focusrite Saffire Pro 14.
- The JACK library has seen some important fixes. Some ardour crackling
has been fixed when looping and multiple MIDI ports on a client should
now work.
- Small bugfixes and improvements.
## PipeWire
- Track memfd better to avoid inconsistent memory. Also make sure the
mixer info is removed correctly in all cases on destroyed ports.
- Fix Props param emission again in pw_stream. (#3833)
- Add MAPPABLE flag to buffer data to indicate that the fd can be
mmapped directly. Use this on DMABUF from v4l2. (#3840)
- Correctly handle removed object in the metadata.
- FreeBSD build and compatibility fixes.
- Add an option to set the server and client priorities instead of using
a hardcoded value of 88.
- Read config overrides in the right order.
- Fix PIPEWIRE_QUANTUM rate handling in pw_stream and pw_filter.
- Fix pw_context_parse_conf_section(), actually use the conf argument.
- A new pw_stream_get_nsec() and pw_filter_get_nsec() function was added
to get the current time of the stream/filter without having to assume a
particular clock.
- A new default.clock.quantum-floor property was added to configure the
absolute lowest buffer-size. (#3908)
## docs
- Many doc updates.
## tools
- Make sure we always quit pw-cli when the server stops. (#3837)
- pw-top now prints all drivers in batch mode. (#3899)
## modules
- Don't destroy the client in protocol-simple on EAGAIN.
- Handle IPv6 better in the RTP modules. Fix IPv6 SAP header
parsing. (#3851)
- The FFADO module has been fixed. Audio and MIDI now works with
the same latency as the JACK driver. This has now also been
tested with a Focusrite Saffire Pro 14. (#3558)
## pulse-server
- Make sure the peer_name is filled to avoid protocol errors.
## SPA
- Small resampler tweaks to improve stability of adaptive resampler.
- Add ALSA option to control htimestamp autodisable.
- Avoid some potential crashes in audioconvert when ports are removed.
- Improve HDMI jack detection on some SOCs.
- The audioconvert now has a monitor.passthrough option to pass the
latency information on the monitor ports. (#3888)
## GStreamer
- Don't use timeouts when autoconnect=false in pipewiresrc. (#3884)
- pipewiresrc and pipewiresink can now be automatically selected as
audio source and sink.
- An invalid memory access was fixed when destroying the device
provider.
## JACK
- Remove properties correctly with the object id, not serial.
- Improve sync with the data thread by pausing the core. Also improve
handling of port io to avoid invalid buffer access.
- Fix PIPEWIRE_QUANTUM rate handling.
- Support multiple MIDI input ports per client. (#3901)
- The output buffer size is now always correctly set. (#3892)
## ALSA
- Handle errors from eventfd_create correctly.
# PipeWire 1.0.3 (2024-02-02)
This is a quick bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Fix ALSA version check. This should allow the alsa plugin to work again.
- Some small fixes and improvements.
## PipeWire
- Escape @DEFAULT_SINK@ in the conf files.
## Modules
- Improve logging in module-pipe-tunnel.
## SPA
- Always recheck rate matching in ALSA when moving drivers. This fixes a
potential issue where the adaptive resampler would not be activated in
some cases.
## ALSA
- Fix version check. This should allow the alsa plugin to work again
with version 1.0.2.
# PipeWire 1.0.2 (2024-01-31)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Fix v4l2 enumeration with filter. This should fix negotiation in some
GStreamer pipelines with capsfilter. Also probe for EXPBUF support
before using it.
- Fix max-latency property and Buffer param when dealing with small
ALSA device buffers. This should fix stuttering with some AMD
based soundcards.
- More small cleanups an improvements.
## Modules
- Improve netjack2 channel positions.
- Improve RAOP module state after suspend/resume. (#3778)
- Avoid crash in some LV2 plugins by configuring the Atom ports. (#3815)
## SPA
- Bump libcamera requirements to 0.2.0.
- Try to avoid unaligned load exceptions. (#3790)
- Fix v4l2 enumeration with filter. (#1793)
- Fix max-latency property and Buffer param when dealing with small
ALSA device buffers. This should fix stuttering with some AMD
based soundcards. (#3744,#3622)
- Add a resync.ms option to node.driver to make it possible to resync
fast to clock jumps.
- Probe for EXPBUF support in v4l2 before using it. (#3821)
## pulse-server
- Also emit change events when the port list change.
## Bluetooth
- Log a more verbose explanation when other soundservers seem to be
interfering with bluetooth.
- Add quirks for Rockbox Brick. (#3786)
- Add quirks for SoundCore mini2. (#2927)
## JACK
- Improve check for the running state of clients. (#3794)
# PipeWire 1.0.1 (2024-01-11)
This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.
## Highlights
- Work around the buggy ALSA backend in libcanberra by forcing the pulse
backend in module-x11-bell.
- Fix a race in the device info updates in pulse-server.
- Fix timing and rate matching in ALSA sequencer.
- Improve timing information in JACK and from the ALSA driver.
- More small fixes and improvements.
## PipeWire
- Fix a build issue when examples where disabled.
- Avoid some compiler warnings.
- Avoid some bitfield data races. (#3706)
## Modules
- Bump the PTP driver priority. (#3217)
- Support the previous "allowed" permission in the access module.
- Fix filename leak in module-filter-chain.
- Work around the buggy ALSA backend in libcanberra by forcing the pulse
backend in module-x11-bell. (#3688)
- Fix a race in the device info updates in pulse-server.
- Fix compatibility in RAOP. (#3698)
## SPA
- Handle ALSA picth control errors correctly
- Clamp buffer-frames correctly. (#3000)
- Fix timing and rate matching in ALSA sequencer. (#3657)
- Revert a commit that could result in current time in the future in the
timing updates.
- Improve adapter state checks.
- Remove the timer from the ALSA pcm.
- Fix timeout in freewheel driver.
## Pulse-server
- Also handle active ports for monitor sources.
- Fix zeroconf-publish format properties.
## JACK
- Improve timing and transport calculations.
- Handle -ENOENT from the core and don't error out.
## GStreamer
- Handle node port removal in the device provider. (#3708)
- Improve error handling while connecting.
- Fix dts_offset.
# PipeWire 1.0.0 (2023-11-26)
The PipeWire project is immensely proud to announce the 1.0 release
@ -76,9 +519,6 @@ Happy Holidays!
- Manpages are now made with Doxygen.
- Add docs for pulse-modules
Older versions:
# PipeWire 0.3.85 (2023-11-16)
This is the fifth (and last) 1.0 release candidate that is API and ABI

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project('pipewire', ['c' ],
version : '1.1.0',
version : '1.1.81',
license : [ 'MIT', 'LGPL-2.1-or-later', 'GPL-2.0-only' ],
meson_version : '>= 0.61.1',
default_options : [ 'warning_level=3',