pipewire/NEWS

PipeWire 0.3.6

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- Extensive memory leak fixing and stress testing was done.
  A big leak in screen sharing with DMA-BUF was fixed.
- Compile fixes
- Stability improvements in jack and pulseaudio layers.
- Added the old portal module to make the Camera portal
  work again. This will be moved to the session manager in
  future versions.
- Improvements to the GStreamer source and sink shutdown.
- Fix compatibility with v2 clients again when negotiating
  buffers.


Older versions:


PipeWire 0.3.5

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- Compiler fixes
- Add pw-midiplay and pw-midirecord aliases
- Add pw-mididump tool
- Add pw-metadata tool to inspect, add and remove metadata
  for objects.
- Docs updates, man pages
- install alsa config files
- Fix linked sink/source in pulseaudio
- ratelimit graph processing warnings
- improve buffer handling in GStreamer elements
- Fix power usage by removing the queue for the alsa
  sequencer system announce messages.
- Fix metadata clear() method dispatch.
- Improve parameter enumeration, make it possible to detect
  missing parameters vs no-compatible parameters so that we
  can use defaults in the first case and error in the second
  case.
- Fix cleanup of proxy objects. Stability improvements on
  plug/unplug in session manager.
- Make it possible to set log level from config file
- improve debug of param negotiation errors. Log the
  parameters to stderr/journal.
- Make it possible to configure global logger
  implementation.
- Fix NEON detection
- JACK and PulseAudio compatibility improvements


PipeWire 0.3.4

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- A quick update with some important stability fixes.


PipeWire 0.3.3

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- NEON optimizations for audio conversion (32 and 64 bits)
- rework of session manager implementation
- Add option to disable modules in the session manager
- Release midi hardware devices when suspended
- various build fixes
- Clean up options of various utils
- Stability improvements
- Mayor improvements in pulseaudio emulation. Improved
  timings and compatibility.
- Implementation of drain and flush in pulse and alsa
  emulation.
- Implement poll on file descriptors.
- Improvement of metadata for jack emulation.
- Fix memory and thread problems in jack emulation.
- Simplification of state changes. Should make more use
  cases work in the jack emulation.
- Improvements in the gstreamer elements. Removal of
  extra internal queue. pipewiresink can now be used to
  play audio.
- Add pw-jack and pw-pulse scripts to run pulseaudio and
  jack applications with the right library path.


PipeWire 0.3.2

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- build fixes
- Added support for data type negotiation. This makes it
  possible for a client to say that it can handle DMABuf
  and MemFd and then let the server select a compatible
  format.
- Handle errors when enumerating parameters better.
- Add support for rate, format, channels and period_bytes
  to the alsa config file to restrict what alsa apps can
  negotiate.
- Fix JACK midi output.
- Optimizations in common audio format conversions using
  AVX2. Small optimizations to plugins.
- Change the vulkan compute example to an MIT licensed
  shader.
- Remove some hardcoded defaults in the audio and video
  processing and use the values from the processing
  context. This also fixes the vulkan example.
- Correct the documentation and defaults in the daemon
  config file.
- Fix alsa and v4l2 buffer recycle. A paused client could
  cause the server to leak all buffers.
- Remove some warnings that should be ignored.
- Fix a crash in the bluez5 plugins.
- Try to select higher quality formats first when
  negotiating a format with an audio device.
- Fix an infinite loop in udev detection in some cases.
- Add non-interactive mode to pw-cli. You can now just
  do "pw-cli ls Port" to get a listing of all ports.
  pw-cli will now also connect to the default server by
  default and has options to select a different server.
- Allow the server to go up to the maximum quantum (8192
  samples or ~=180ms) if a client explicitly wants this.


PipeWire 0.3.1

This is a bugfix release that is API and ABI compatible
with previous 0.3.x releases.

- Don't load the rtkit module by default. It can cause a
  sigkill, which is not desirable for mutter, for example.
  Only enable this for the jack library for now.
- Don't use pthread cancel by default because it uses a
  signal that might crash some apps. Only use it for
  the jack library because jack clients really expect this.
- Build fixes for -Werror=suggest-attribute=format
- improve error messages, don't report harmless errors and
  warnings. Try to send error messages to the proxy that
  started the operation or is the owner of the object.
- pw-cat: midi improvement, add midi recording and dump
  in verbose mode
- fix properties when loading spa-nodes from the config
- Fix and update some examples
- jack: check arguments and don't crash when invalid
- Fix buffer memory upload.
- jack: fix compatibility with zrythm. Fix timemaster
  install, improve sample_rate callback. Fix reposition
  handling.
- fix crash in port after buffer negotiation error.
- add support for control ports in pw_filter
- fix cleanup of the metadata module
- improve param enumeration.
- Clear stream buffers when the format is cleared.
- Add create-object command in the config file to create
  object from a factory.
- Fix crash after the driver was not removed from unassigned
  nodes. Also properly pause inactive nodes.
- Use "true" and "false" in properties when we are talking
  about a boolean.
- pulseaudio: improve compatibility


PipeWire 0.3.0

The 0.3 release is a major milestone in the developement of
PipeWire. It features a complete redesign of the scheduling
mechanisms that make it possible to run a JACK compatibility
layer with comparable performance to JACK2.

The API has been reworked and is declared stable now. All
developement files and runtime paths are versioned so that
future incompatible changes can be done without breaking
exising applications.

PipeWire 0.3 also includes a (now mandatory) session manager
that populates and controls the PipeWire graph. This example
session manager is very simple and not configurable. It is
expected that future version will either switch to a more
flexible session manager (like WirePlumber) or improve the
configuration options of the example session manager.

PipeWire 0.3 includes both PulseAudio, JACK and ALSA
compatibility libraries that are known to support a wide range
of applications. The ALSA library is pretty complete at this
point. The JACK and mostly the PulseAudio compatibility
libraries need more work. See the Wiki pages for the current
compatibility problems. We do not yet encourage people to
switch away from their existing audio solutions (PulseAudio
or JACK) but we would love to hear from people who try it
anyways. Future versions will mostly focus on improving
compatibility further to make PipeWire a drop-in replacement.

PipeWire comes with some GStreamer plugins to consume and
produce data for PipeWire. The consumer (pipewiresrc) is
working well in most cases. The sink (pipewiresink) is known
to be somewhat problematic for now.

PipeWire 0.2.97

Eigth pre-release for upcomming 0.3:

- Build fixes
- pw-cat improvement: Fix remote name, add midi support
- add device subscribe params for completeness
- jack and pulseaudio compatibility fixes
- Fix a bug in resampler, add quality option, tweaked quality
  settings, tested now against https://src.infinitewave.ca/
  testsignals and submitted results for publication.
- Fix awkwardness in buffer negotiations, the default number of
  buffers was 4 and jack could only handle 2, causing
  corruption. Also implement negotiation of Step ranges.
- Fix device reservation to work together with pulseaudio,
  previously we would block pulseaudio.

PipeWire 0.2.96

Seventh pre-release for upcomming 0.3:

- jack: improve compatibility
- Fix unit test
- Fix license of jack and alsa libs
- Make start/stop more threadsafe
- Fix rt-kit again, add params to configure things, increase default
  soft/hard limits to avoid being killed.
- version 0 compatibility improvements, tested with firefox, cheese,
  GStreamer and chrome using compat layers.
- Fix timing for gstreamer source
- Require libspa in pkg-config file
- Limit buffers to 16 to support old clients

PipeWire 0.2.95

Sixth pre-release for upcomming 0.3:

- Fix tests for big endian some more
- Improve v2 compatibility mode: improve type negotiation and
  update_permissions
- Workaround for firefox screen sharing


PipeWire 0.2.94

Fifth pre-release for upcomming 0.3:

- Fix man page names
- Fix jack set_sync_timeout
- Improve JACK compatibility with apps that cache buffer pointers.
- Improve mlock failure warning message, add property to configure
  if mlock should be used.
- Improve OBJECT_PATH in alsa objects
- Install in versioned directory
- Add pw-profiler tool
- Improve pulseaudio compatibility wrt pa_operations
- Thread safety fixes in remote nodes when activating/deactivating
- Improve JACK names on duplicates
- Add option to ignore failure when loading modules

PipeWire 0.2.93

Fourth pre-release for upcomming 0.3:

- Fix unit tests on 32 bits
- Append -pw version to pulse and jack libs. This way we can install
  it next to the real libraries and use a symlink to enable it.
- Improve jack support by killing threads with pthread_cancel. This
  then also remove the eventfd from the data-loop, making it
  maybe a little faster.
- Fix jack_client_close() compatibility
- Fix some segfaults in the session manager
- Improve debug of protocol messages
- Add examples options
- Don't fail when alsa is not found
- Fix some compiler warnings with a new spa_aprintf() helper.
- Add pw-cat, the simple audio playback/record tool
- Rename pipewire tools to pw- prefix
- Add improve pw-cli object dump feature


PipeWire 0.2.92

Third pre-release for upcomming 0.3:

- Improve old version check some more
- Fix unit tests on little/big endian
- Fix compilation when CPU has no optimisations
- Install jack and pulse libraries
- Handle -EACCESS in flatpack access module


PipeWire 0.2.91

It is mostly a bugfix release to make the new version install and
run correctly in distros.

- Install session manager, fix path to find the session manager
- Fix alsa buffer reuse
- Small fixes for crasher bugs
- Implement pw_core_set_paused() to suspend/resume even
  processing. This can be used when using multiple connections
  to a daemon and one needs to pause one connection until the
  other one completes an action. Used by session managers.
- Improve old version check


PipeWire 0.2.90

This is the first pre-release of the 0.3 version. It consists of a
major rewrite and is not API or ABI compatible with the 0.2
branch.


PipeWire 0.2.7

This is mostly a bugfix release and is API/ABI compatible with
previous 0.2 versions.

Work is ongoing in the work branch that features a completely new
scheduling method that will enable audio support. Some of these
API changes are backported in this branch.

- Add support for alsa-lib 1.1.9 which changed the include path
- Improve error checking and reporting in the protocol
- deviceprovider: fix probing without starting
- add sentinel to some functions
- compiler fixes for musl
- Revert object tree permission checks that broke things, this is
  probably not a good idea (and the tree of objects is going to
  be removed later)


PipeWire 0.2.6

- Improve error checking for threads
- Fix some memory and fd leaks
- Fix compilation with C++ compilers and clang
- DISABLE_RTKIT should now not try to use dbus at all
- Camera Portal fixes:
	- add Camera media.role
	- Rename module-flatpak to module-portal
	- Use the portal permissions store for camera checks
- Actually use the passed fd in pipewiresrc
- Make properties with "pipewire." prefix read-only
- Add security label to client object
- Enforce link permissions
- Permissions of objects are now combined with parent permissions
- Remove libv4l2 dependency, it is not used
- Improve format negotiation in autolink #146
- Try to avoid list corruption with event emmission #143
- Fix destroy of client-node memory corruption
- Various small improvements

PipeWire 0.2.5

- build fixes for systemd
- Add cursor and bitmap metadata. This can be used to send a cursor
  sprite with the video stream.
- permissions were set too strict for non-flatpak clients
- Fix crash in loop caused by thread unsafe hook emission
- Add more error checking for thread-loop
- Small cleanups and bugfixes

PipeWire 0.2.4

- Install man pages in right directory
- Add systemd socket activation
- Various memory leak and corruption fixes in properties, dbus and
  buffer mmaped memory.
- Fix v4l2 crash on unplug
- improve stream cleanup

PipeWire 0.2.3

- Fix deviceprovider caps introspection
- Refcounting fixes in pipewiresrc
- Remove clock interpolation from stream
- Improve clock in gstreamer elements
- Remove spalib
- Fix crash with pw_map
- Add version number to hook list
- Improve driver mode in gstreamer elements
- add daemon options
- add man pages

PipeWire 0.2.2

- Increment API version and .so version

PipeWire 0.2.1

- Various fixes to memory handling
- Fixes for shutdown
- v4l2 fix enumeration of frame intervals
- Make the daemon stop when the setup commands fail
- Improve safety of hooks
- Update stream API to more future proof version
- Add more options to stream API such as scheduling in the
  main thread and automatic mapping of buffers
- Add version file and macros to check compile time and
  runtime versions of pipewire
- Future proof some structs


PipeWire 0.1.9

- Various build fixes
- Do more permission checks
- Add support for doing async connections. This can be used to
  make connections through the portal later.
- Fix device creation from the GStreamer device monitor
- v4l2 experiment with controls
- move rtkit to a module to avoid dbus dependency
- use dmabuf allocator in gstreamer elements
- Add DSP module for pro audio cases, remove jack module. The
  idea is to make a replacement jack client library that talks
  pipewire directly instead of trying to emulate a jack server.
- Various memory handling improvements