monoscope

## monoscope monoscope — Displays a highly stabilised waveform of audio input |

## Synopsis

    struct              GstMonoscope;

## Description

Monoscope is an audio visualisation element. It creates a coloured curve of the audio signal like on an oscilloscope.

### Example launch line

    1
    gst-launch-1.0 -v audiotestsrc ! audioconvert ! monoscope ! videoconvert ! ximagesink

## Synopsis

### Element Information

plugin | monoscope
author | Richard Boulton <richard@tartarus.org>
class | Visualization

### Element Pads

name | sink
direction | sink
presence | always
details | audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)2, endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true

name | src
direction | source
presence | always
details | video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)256, height=(int)128, framerate=(fraction)[ 0/1, 2147483647/1 ]

## Details

### struct GstMonoscope

    struct GstMonoscope {
      GstElement element;

      /* pads */
      GstPad      *sinkpad;
      GstPad      *srcpad;

      GstAdapter  *adapter;

      guint64      next_ts;             /* expected timestamp of the next frame */
      guint64      frame_duration;      /* video frame duration    */
      gint         rate;                /* sample rate             */
      guint        bps;                 /* bytes per sample        */
      guint        spf;                 /* samples per video frame */
      GstBufferPool *pool;

      GstSegment   segment;

      /* QoS stuff *//* with LOCK */
      gdouble      proportion;
      GstClockTime earliest_time;

      /* video state */
      gint         fps_num;
      gint         fps_denom;
      gint         width;
      gint         height;
      guint        outsize;

      /* visualisation state */
      struct monoscope_state *visstate;
    };

## See Also

goom