The info structure needs to be cached because there is no way to request it from the implementation, unless we hack the add_listener API to be used for making info requests or add a new method that will be used just in the implementation (both are bad ideas). The params are cached because 1) a client doing enum_params + sync will not work correctly, since the sync call syncs with the server and not the implementation... we could block the client to solve that, but then there is also #2 2) the implementation is not aware of the clients and therefore it cannot keep track of who is subscribed and who is not, this needs to happen in the server. Then if we only keep track of the subscriptions in the server and keep requesting params from the impl, there is no way to know if a param event coming from the impl matches a call to enum_params or to subscribe or if it's just an update that needs to be forwarded to subscribers. |
||
|---|---|---|
| doc | ||
| man | ||
| pipewire-alsa | ||
| pipewire-jack | ||
| pipewire-pulseaudio | ||
| po | ||
| spa | ||
| src | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| _config.yml | ||
| autogen.sh | ||
| check_missing_headers.sh | ||
| CODE_OF_CONDUCT.md | ||
| config.h.meson | ||
| COPYING | ||
| LICENSE | ||
| Makefile.in | ||
| meson.build | ||
| meson_options.txt | ||
| NEWS | ||
| PROTOCOL | ||
| pw-uninstalled.sh | ||
| README.md | ||
PipeWire
PipeWire is a server and user space API to deal with multimedia pipelines. This includes:
- Making available sources of video (such as from a capture devices or application provided streams) and multiplexing this with clients.
- Accessing sources of video for consumption.
- Generating graphs for audio and video processing.
Nodes in the graph can be implemented as separate processes, communicating with sockets and exchanging multimedia content using fd passing.
Building
Pipewire uses the Meson and Ninja build system to compile. You can run it with:
$ meson build
$ cd build
$ ninja
You can see the available meson options in meson_options.txt file.
If you're not familiar with these tools, the included autogen.sh script will
automatically run the correct meson/ninja commands, and output a Makefile.
It follows that there are two methods to build Pipewire, however both rely
on Meson and Ninja to actually perform the compilation:
$ ./autogen.sh
$ make
Running
If you want to run PipeWire without installing it on your system, there is a script that you can run. This puts you in an environment in which PipeWire can be run from the build directory, and ALSA, PulseAudio and JACK applications will use the PipeWire emulation libraries automatically in this environment. You can get into this environment with:
$ ./pw-uninstalled.sh