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Properties
| gboolean | sync | Read / Write |
| gboolean | text-overlay | Read / Write |
| GstElement * | video-sink | Read / Write |
| gint | fps-update-interval | Read / Write |
| gdouble | max-fps | Read |
| gdouble | min-fps | Read |
| gboolean | signal-fps-measurements | Read / Write |
| guint | frames-dropped | Read |
| guint | frames-rendered | Read |
| gchar * | last-message | Read |
| gboolean | silent | Read / Write |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstBin ╰── GstFPSDisplaySink
Description
Can display the current and average framerate as a testoverlay or on stdout.
Example launch lines
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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 |
Synopsis
Element Information
plugin |
debugutilsbad |
author |
Zeeshan Ali <zeeshan.ali@nokia.com>, Stefan Kost <stefan.kost@nokia.com> |
class |
Sink/Video |
Property Details
The “sync” property
“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
The “text-overlay” property
“text-overlay” gboolean
Whether to use text-overlay.
Flags: Read / Write
Default value: TRUE
The “video-sink” property
“video-sink” GstElement *
Video sink to use (Must only be called on NULL state).
Flags: Read / Write
The “fps-update-interval” property
“fps-update-interval” gint
Time between consecutive frames per second measures and update (in ms). Should be set on NULL state.
Flags: Read / Write
Allowed values: >= 1
Default value: 500
The “max-fps” property
“max-fps” gdouble
Maximum fps rate measured. Reset when going from NULL to READY.-1 means no measurement has yet been done.
Flags: Read
Allowed values: >= -1
Default value: -1
The “min-fps” property
“min-fps” gdouble
Minimum fps rate measured. Reset when going from NULL to READY.-1 means no measurement has yet been done.
Flags: Read
Allowed values: >= -1
Default value: -1
The “signal-fps-measurements” property
“signal-fps-measurements” gboolean
If the fps-measurements signal should be emited.
Flags: Read / Write
Default value: FALSE
The “frames-dropped” property
“frames-dropped” guint
Number of frames dropped by the sink.
Flags: Read
Default value: 0
The “frames-rendered” property
“frames-rendered” guint
Number of frames rendered.
Flags: Read
Default value: 0
The “last-message” property
“last-message” gchar *
The message describing current status.
Flags: Read
Default value: NULL
The “silent” property
“silent” gboolean
Don't produce last_message events.
Flags: Read / Write
Default value: FALSE
Signal Details
The “fps-measurements” signal
void user_function (GstFPSDisplaySink *fpsdisplaysink, gdouble fps, gdouble droprate, gdouble avgfps, gpointer user_data)
Signals the application about the measured fps
Parameters
fpsdisplaysink |
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fps |
The current measured fps |
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droprate |
The rate at which buffers are being dropped |
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avgfps |
The average fps |
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user_data |
user data set when the signal handler was connected. |
Flags: Run Last