kmssink

kmssink — A KMS/DRM based video sink

Properties

gint connector-id Read / Write / Construct
gchar * driver-name Read / Write / Construct
gint plane-id Read / Write / Construct
gboolean force-modesetting Read / Write / Construct
gchar * bus-id Read / Write / Construct
gboolean can-scale Read / Write / Construct
gint display-height Read
gint display-width Read
GstValueArray render-rectangle Write
GstStructure * connector-properties Read / Write
gboolean force-aspect-ratio Read / Write
GstStructure * plane-properties Read / Write
gboolean restore-crtc Read / Write / Construct
GstKMSSyncMode sync-mode Read / Write

Types and Values

struct GstKMSSink

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseSink
                    ╰── GstVideoSink
                        ╰── GstKMSSink

Implemented Interfaces

GstKMSSink implements GstVideoOverlay.

Description

kmssink is a simple video sink that renders video frames directly in a plane of a DRM device.

Example launch line

1
 
gst-launch-1.0 videotestsrc ! kmssink

Synopsis

Element Information

plugin

 kms

author

 Víctor Jáquez <vjaquez@igalia.com>

class

 Sink/Video

Element Pads

name

 sink

direction

 sink

presence

 always

details

 video/x-raw, format=(string){ BGRA, BGRx, RGBA, RGBx, RGB, BGR, UYVY, YUY2, YVYU, I420, YV12, Y42B, NV12, NV21, NV16, NV12_10LE40 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstKMSSink

struct GstKMSSink;

Property Details

The “connector-id” property

  “connector-id”             gint

DRM connector id.

Flags: Read / Write / Construct

Allowed values: >= G_MAXULONG

Default value: -1

The “driver-name” property

  “driver-name”              gchar *

DRM device driver name.

Flags: Read / Write / Construct

Default value: NULL

The “plane-id” property

  “plane-id”                 gint

DRM plane id.

Flags: Read / Write / Construct

Allowed values: >= G_MAXULONG

Default value: -1

The “force-modesetting” property

  “force-modesetting”        gboolean

When enabled, the sink try to configure the display mode.

Flags: Read / Write / Construct

Default value: FALSE

The “bus-id” property

  “bus-id”                   gchar *

DRM bus ID.

Flags: Read / Write / Construct

Default value: NULL

The “can-scale” property

  “can-scale”                gboolean

User can tell kmssink if the driver can support scale.

Flags: Read / Write / Construct

Default value: TRUE

The “display-height” property

  “display-height”           gint

Height of the display surface in pixels.

Flags: Read

Allowed values: >= 0

Default value: 0

The “display-width” property

  “display-width”            gint

Width of the display surface in pixels.

Flags: Read

Allowed values: >= 0

Default value: 0

The “render-rectangle” property

  “render-rectangle”         GstValueArray

The render rectangle ('<x, y, width, height>').

Flags: Write

The “connector-properties” property

  “connector-properties”     GstStructure *

Additionnal properties for the connector.

Flags: Read / Write

The “force-aspect-ratio” property

  “force-aspect-ratio”       gboolean

When enabled, scaling will respect original aspect ratio.

Flags: Read / Write

Default value: TRUE

The “plane-properties” property

  “plane-properties”         GstStructure *

Additionnal properties for the plane.

Flags: Read / Write

The “restore-crtc” property

  “restore-crtc”             gboolean

When enabled and CRTC was set with a new mode, previous CRTC mode willbe restored when going to NULL state.

Flags: Read / Write / Construct

Default value: TRUE

The “sync-mode” property

  “sync-mode”                GstKMSSyncMode

Prefered frame syncing mode.

Flags: Read / Write

Default value: Sync with page flip or vblank event

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