fpsdisplaysink

Can display the current and average framerate as a testoverlay or on stdout.

Example launch lines

 gst-launch-1.0 videotestsrc ! fpsdisplaysink
 gst-launch-1.0 videotestsrc ! fpsdisplaysink text-overlay=false
 gst-launch-1.0 filesrc location=video.avi ! decodebin name=d ! queue ! fpsdisplaysink d. ! queue ! fakesink sync=true
 gst-launch-1.0 playbin uri=file:///path/to/video.avi video-sink="fpsdisplaysink" audio-sink=fakesink

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBin
                    ╰──fpsdisplaysink

Implemented interfaces

Factory details

Authors: – Zeeshan Ali , Stefan Kost

Classification: – Sink/Video

Rank – none

Plugin – debugutilsbad

Package – GStreamer Bad Plug-ins

Pad Templates

sink

ANY

Presence – always

Direction – sink

Object type – GstPad

Signals

fps-measurements 

fps_measurements_callback (GstElement * fpsdisplaysink,
                           gdouble fps,
                           gdouble droprate,
                           gdouble avgfps,
                           gpointer udata)
def fps_measurements_callback (fpsdisplaysink, fps, droprate, avgfps, udata):
    #python callback for the 'fps-measurements' signal
function fps_measurements_callback(fpsdisplaysink: GstElement * fpsdisplaysink, fps: gdouble fps, droprate: gdouble droprate, avgfps: gdouble avgfps, udata: gpointer udata): {
    // javascript callback for the 'fps-measurements' signal
}

Signals the application about the measured fps

Parameters:

fpsdisplaysink –

a fpsdisplaysink

fps –

The current measured fps

droprate –

The rate at which buffers are being dropped

avgfps –

The average fps

udata –
No description available

Flags: Run Last

Properties

fps-update-interval 

“fps-update-interval” gint

Time between consecutive frames per second measures and update (in ms). Should be set on NULL state

Flags : Read / Write

Default value : 500

frames-dropped 

“frames-dropped” guint

Number of frames dropped by the sink

Flags : Read

Default value : 0

frames-rendered 

“frames-rendered” guint

Number of frames rendered

Flags : Read

Default value : 0

last-message 

“last-message” gchararray

The message describing current status

Flags : Read

Default value : NULL

max-fps 

“max-fps” gdouble

Maximum fps rate measured. Reset when going from NULL to READY.-1 means no measurement has yet been done

Flags : Read

Default value : -1

min-fps 

“min-fps” gdouble

Minimum fps rate measured. Reset when going from NULL to READY.-1 means no measurement has yet been done

Flags : Read

Default value : -1

signal-fps-measurements 

“signal-fps-measurements” gboolean

If the fps-measurements signal should be emitted.

Flags : Read / Write

Default value : false

silent 

“silent” gboolean

Don't produce last_message events

Flags : Read / Write

Default value : false

sync 

“sync” gboolean

Sync on the clock (if the internally used sink doesn't have this property it will be ignored

Flags : Read / Write

Default value : true

text-overlay 

“text-overlay” gboolean

Whether to use text-overlay

Flags : Read / Write

Default value : true

video-sink 

“video-sink” GstElement *

Video sink to use (Must only be called on NULL state)

Flags : Read / Write

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