textrender

textrender

Properties

gchar * font-desc Write
GstTextRenderHAlign halignment Read / Write
GstTextRenderLineAlign line-alignment Read / Write
GstTextRenderVAlign valignment Read / Write
gint xpad Read / Write
gint ypad Read / Write

Types and Values

struct GstTextRender

Object Hierarchy

    GObject
    ╰── GstObject
        ╰── GstElement
            ╰── GstTextRender

Description

This plugin renders text received on the text sink pad to a video buffer (retaining the alpha channel), so it can later be overlayed on top of video streams using other elements.

The text can contain newline characters. (FIXME: What about text wrapping? It does not make sense in this context)

Example launch lines

1
 
gst-launch -v filesrc location=subtitles.srt ! subparse ! textrender ! xvimagesink

Functions

Types and Values

struct GstTextRender

struct GstTextRender;

Opaque textrender data structure.

Property Details

The “font-desc” property

  “font-desc”                gchar *

Pango font description of font to be used for rendering. See documentation of pango_font_description_from_string for syntax.

Flags: Write

Default value: ""

The “halignment” property

  “halignment”               GstTextRenderHAlign

Horizontal alignment of the text.

Flags: Read / Write

Default value: center

The “line-alignment” property

  “line-alignment”           GstTextRenderLineAlign

Alignment of text lines relative to each other.

Flags: Read / Write

Default value: center

The “valignment” property

  “valignment”               GstTextRenderVAlign

Vertical alignment of the text.

Flags: Read / Write

Default value: baseline

The “xpad” property

  “xpad”                     gint

Horizontal paddding when using left/right alignment.

Flags: Read / Write

Allowed values: >= 0

Default value: 25

The “ypad” property

  “ypad”                     gint

Vertical padding when using top/bottom alignment.

Flags: Read / Write

Allowed values: >= 0

Default value: 25

See Also

GstTextOverlay

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