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timeoverlay

timeoverlay

Properties

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseTextOverlay
                    ╰── GstTimeOverlay

Description

This element overlays the buffer time stamps of a video stream on top of itself. You can position the text and configure the font details using the properties of the GstBaseTextOverlay class. By default, the time stamp is displayed in the top left corner of the picture, with some padding to the left and to the top.

1
gst-launch-1.0 -v videotestsrc ! timeoverlay ! autovideosink
Display the time stamps in the top left corner of the video picture.
1
gst-launch-1.0 -v videotestsrc ! timeoverlay halignment=right valignment=bottom text="Stream time:" shaded-background=true font-desc="Sans, 24" ! autovideosink
Another pipeline that displays the time stamps with some leading text in the bottom right corner of the video picture, with the background of the text being shaded in order to make it more legible on top of a bright video background.

Synopsis

Element Information

plugin

pango

author

Tim-Philipp Müller <tim@centricular.net>

class

Filter/Editor/Video

Element Pads

name

video_sink

direction

sink

presence

always

details

video/x-raw, format=(string){ BGRx, RGBx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, I420, YV12, AYUV, YUY2, UYVY, v308, Y41B, Y42B, Y444, NV12, NV21, A420, YUV9, YVU9, IYU1, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

video/x-raw(ANY), format=(string){ I420, YV12, YUY2, UYVY, VYUY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, IYU2, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE, P010_10LE, P010_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name

src

direction

source

presence

always

details

video/x-raw, format=(string){ BGRx, RGBx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, I420, YV12, AYUV, YUY2, UYVY, v308, Y41B, Y42B, Y444, NV12, NV21, A420, YUV9, YVU9, IYU1, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

video/x-raw(ANY), format=(string){ I420, YV12, YUY2, UYVY, VYUY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, IYU2, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE, P010_10LE, P010_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstTimeOverlay

struct GstTimeOverlay;

Opaque timeoverlay data structure.


enum GstTimeOverlayTimeLine

Members

GST_TIME_OVERLAY_TIME_LINE_BUFFER_TIME

   

GST_TIME_OVERLAY_TIME_LINE_STREAM_TIME

   

GST_TIME_OVERLAY_TIME_LINE_RUNNING_TIME

   

GST_TIME_OVERLAY_TIME_LINE_TIME_CODE

   

Property Details

The “time-mode” property

  “time-mode”                GstTimeOverlayTimeLine

What time to show.

Flags: Read / Write

Default value: buffer-time

See Also

GstBaseTextOverlay, GstClockOverlay

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