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mutter-performance-source/src/org.gnome.Mutter.ScreenCast.xml
Jonas Ådahl 74ab2120fa screen-cast/session: Introduce RecordVirtual D-Bus API
The new RecordVirtual API creates a virtual monitor, i.e. a region of
the stage that isn't backed by real monitor hardware. It's intended to
be used by e.g. network screens on active sessions, virtual remote
desktop screens when running headless, and scenarios like that.

A major difference between the current Record* API's is that
RecordVirtual relies on PipeWire itself to negotiate the refresh rate
and size, as it can't rely on any existing monitor, for those details.

This also means that the virtual monitor is not created until the stream
negotiation has finished and a virtual monitor resolution has been
determined.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>
2021-03-12 15:09:45 +00:00

220 lines
6.6 KiB
XML

<!DOCTYPE node PUBLIC
'-//freedesktop//DTD D-BUS Object Introspection 1.0//EN'
'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd'>
<node>
<!--
org.gnome.Mutter.ScreenCast:
@short_description: Screen cast interface
This API is private and not intended to be used outside of the integrated
system that uses libmutter. No compatibility between versions are
promised.
-->
<interface name="org.gnome.Mutter.ScreenCast">
<!--
CreateSession:
@properties: Properties
@session_path: Path to the new session object
* "remote-desktop-session-id" (s): The ID of a remote desktop session.
Remote desktop driven screen casts
are started and stopped by the remote
desktop session.
* "disable-animations" (b): Set to "true" if the screen cast application
would prefer animations to be globally
disabled, while the session is running. Default
is "false". Available since version 3.
-->
<method name="CreateSession">
<arg name="properties" type="a{sv}" direction="in" />
<arg name="session_path" type="o" direction="out" />
</method>
<!--
Version:
@short_description: API version
-->
<property name="Version" type="i" access="read" />
</interface>
<!--
org.gnome.Mutter.ScreenCast.Session:
@short_description: Screen cast session
-->
<interface name="org.gnome.Mutter.ScreenCast.Session">
<!--
Start:
Start the screen cast session
-->
<method name="Start" />
<!--
Stop:
Stop the screen cast session
-->
<method name="Stop" />
<!--
Closed:
The session has closed.
-->
<signal name="Closed" />
<!--
RecordMonitor:
@connector: Connector of the monitor to record
@properties: Properties
@stream_path: Path to the new stream object
Record a single monitor.
Available @properties include:
* "cursor-mode" (u): Cursor mode. Default: 'hidden' (see below)
Available since API version 2.
* "is-recording" (b): Whether this is a screen recording. May be
be used for choosing appropriate visual feedback.
Default: false. Available since API version 4.
Available cursor mode values:
0: hidden - cursor is not included in the stream
1: embedded - cursor is included in the framebuffer
2: metadata - cursor is included as metadata in the PipeWire stream
-->
<method name="RecordMonitor">
<arg name="connector" type="s" direction="in" />
<arg name="properties" type="a{sv}" direction="in" />
<arg name="stream_path" type="o" direction="out" />
</method>
<!--
RecordWindow:
@properties: Properties used determining what window to select
@stream_path: Path to the new stream object
Supported since API version 2.
Record a single window. The cursor will not be included.
Available @properties include:
* "window-id" (t): Id of the window to record.
* "cursor-mode" (u): Cursor mode. Default: 'hidden' (see RecordMonitor).
* "is-recording" (b): Whether this is a screen recording. May be
be used for choosing panel icon.
Default: false. Available since API version 4.
-->
<method name="RecordWindow">
<arg name="properties" type="a{sv}" direction="in" />
<arg name="stream_path" type="o" direction="out" />
</method>
<!--
RecordArea:
@x: X position of the recorded area
@y: Y position of the recorded area
@width: width of the recorded area
@height: height of the recorded area
@properties: Properties
@stream_path: Path to the new stream object
Record an area of the stage. The coordinates are in stage coordinates.
The size of the stream does not necessarily match the size of the
recorded area, and will depend on DPI scale of the affected monitors.
Available @properties include:
* "cursor-mode" (u): Cursor mode. Default: 'hidden' (see below)
Available since API version 2.
* "is-recording" (b): Whether this is a screen recording. May be
be used for choosing panel icon.
Default: false. Available since API version 4.
Available cursor mode values:
0: hidden - cursor is not included in the stream
1: embedded - cursor is included in the framebuffer
2: metadata - cursor is included as metadata in the PipeWire stream
-->
<method name="RecordArea">
<arg name="x" type="i" direction="in" />
<arg name="y" type="i" direction="in" />
<arg name="width" type="i" direction="in" />
<arg name="height" type="i" direction="in" />
<arg name="properties" type="a{sv}" direction="in" />
<arg name="stream_path" type="o" direction="out" />
</method>
<!--
RecordVirtual:
@properties: Properties
@stream_path: Path to the new stream object
Record a virtual area that will be represented as a virtual monitor. The
width and height corresponds to the non-scaled intended stream size.
Available @properties include:
* "cursor-mode" (u): Cursor mode. Default: 'hidden' (see below)
Available since API version 2.
* "is-platform" (b): Whether this virtual output should be considered
part of the platform, meaning it will not be
interpreted as if the screen is shared, but more
transparently as if it was a real monitor.
Available since API version 3. Default: FALSE.
Available cursor mode values:
0: hidden - cursor is not included in the stream
1: embedded - cursor is included in the framebuffer
2: metadata - cursor is included as metadata in the PipeWire stream
-->
<method name="RecordVirtual">
<arg name="properties" type="a{sv}" direction="in" />
<arg name="stream_path" type="o" direction="out" />
</method>
</interface>
<!--
org.gnome.Mutter.ScreenCast.Stream:
@short_description: Screen cast stream
-->
<interface name="org.gnome.Mutter.ScreenCast.Stream">
<!--
PipeWireStreamAdded:
@short_description: Pipewire stream added
A signal emitted when PipeWire stream for the screen cast stream has
been created. The @node_id corresponds to the PipeWire stream node.
-->
<signal name="PipeWireStreamAdded">
<annotation name="org.gtk.GDBus.C.Name" value="pipewire-stream-added"/>
<arg name="node_id" type="u" direction="out" />
</signal>
<!--
Parameters:
@short_description: Optional stream parameters
Available parameters include:
* "position" (ii): Position of the source of the stream in the
compositor coordinate space.
* "size" (ii): Size of the source of the stream in the compositor
coordinate space.
-->
<property name="Parameters" type="a{sv}" access="read" />
</interface>
</node>