GstLevelFilter

GstLevelFilter — An audio level filter

Synopsis

#include <gst/filters/gst-level-filter.h>

                    GstLevelFilter;
GstLevelFilter *    gst_level_filter_new                (void);

Object Hierarchy

  GObject
   +----GstFilter
         +----GstLevelFilter

Signals

  "level"                                          : Run Last

Description

This filter will report the audio level on a pipeline by sending a GstLevelFilter::level signal with the RMS level value in dB.

Details

GstLevelFilter

typedef struct _GstLevelFilter GstLevelFilter;

An audio level filter

gst_level_filter_new ()

GstLevelFilter *    gst_level_filter_new                (void);

Creates a new level filter. This filter will add a 'level' element to the pipeline and will transform its result from the GstMessage on the bus into a signal with the RMS average for all channels.

Returns :

 A new GstLevelFilter See also: "level" See also: gst_filter_handle_message()

Signal Details

The "level" signal

void                user_function                      (GstLevelFilter *self,
                                                        gdouble         level,
                                                        gpointer        user_data)      : Run Last

This signal is emitted when sound is transmitted and determines the level of sound in dB.

self :

 GstLevelFilter that emitted the signal

level :

 The RMS level value in dB

user_data :

 user data set when the signal handler was connected.
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