|  |  |  | GStreamer Good Plugins 0.10 Plugins Reference Manual |  | 
|---|---|---|---|---|
| Top | Description | ||||
Monoscope is an audio visualisation element. It creates a coloured curve of the audio signal like on an oscilloscope.
gst-launch -v audiotestsrc ! audioconvert ! monoscope ! ffmpegcolorspace ! ximagesink
| plugin | monoscope | 
| author | Richard Boulton <richard@tartarus.org> | 
| class | Visualization | 
| 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 ] | 
typedef struct {
  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 */
  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;
} GstMonoscope;