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GObject ╰── GstObject ╰── GstElement ╰── GstBaseTransform ╰── GstVideoFilter ╰── GstVideoAnalyse
This plugin analyses every video frame and if the “message” property is TRUE, posts an element message with video statistics called
"GstVideoAnalyse"
.
The message's structure contains these fields:
GstClockTime
"timestamp"
:
the timestamp of the buffer that triggered the message.
GstClockTime
"stream-time"
:
the stream time of the buffer.
GstClockTime
"running-time"
:
the running_time of the buffer.
GstClockTime
"duration"
:
the duration of the buffer.
gdouble
"brightness"
:
the average brightness of the frame.
gdouble
"brightness-variance"
:
the brightness variance of the frame.
1 |
gst-launch -m videotestsrc ! videoanalyse ! ffmpegcolorspace ! ximagesink |
Last reviewed on 2007-05-30 (0.10.5)
“message”
property“message” gboolean
Post statics messages.
Flags: Read / Write / Construct
Default value: TRUE