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spa-monitor 命令

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复制后可按需替换文件名、目录或参数。

常用示例

Load a SPA plugin

spa-monitor [path/to/plugin.so]

Debug the JACK compatibility plugin

spa-monitor /usr/lib/x86_64-linux-gnu/spa-0.2/jack/libspa-jack.so

Debug the ALSA plugin

spa-monitor /usr/lib/x86_64-linux-gnu/spa-0.2/alsa/libspa-alsa.so

Debug the Bluetooth plugin

spa-monitor /usr/lib/x86_64-linux-gnu/spa-0.2/bluez5/libspa-bluez5.so

Debug the V4L2 video plugin

spa-monitor /usr/lib/x86_64-linux-gnu/spa-0.2/v4l2/libspa-v4l2.so

说明

spa-monitor is a small debugging utility shipped with PipeWire. It loads a SPA (Simple Plugin API) shared-object plugin and instantiates a device object from it so that developers can observe how the plugin enumerates hardware, advertises nodes, and emits events. The tool is not intended for end users; it exists to help plugin authors and PipeWire developers verify that a SPA plugin initializes correctly, exposes the expected interfaces, and reports devices on the system bus. Running spa-monitor against a plugin prints diagnostic output describing the devices discovered and any errors encountered during instantiation. Typical usage is pointing it at one of the plugin libraries under _/usr/lib/<triplet>/spa-0.2/_ to inspect how that plugin behaves on the current machine.

FAQ

What is the spa-monitor command used for?

spa-monitor is a small debugging utility shipped with PipeWire. It loads a SPA (Simple Plugin API) shared-object plugin and instantiates a device object from it so that developers can observe how the plugin enumerates hardware, advertises nodes, and emits events. The tool is not intended for end users; it exists to help plugin authors and PipeWire developers verify that a SPA plugin initializes correctly, exposes the expected interfaces, and reports devices on the system bus. Running spa-monitor against a plugin prints diagnostic output describing the devices discovered and any errors encountered during instantiation. Typical usage is pointing it at one of the plugin libraries under _/usr/lib/<triplet>/spa-0.2/_ to inspect how that plugin behaves on the current machine.

How do I run a basic spa-monitor example?

Run `spa-monitor [path/to/plugin.so]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.

Where can I find more spa-monitor examples?

This page includes 5 examples for spa-monitor, plus related commands for nearby Linux tasks.