| GStreamer Good Plugins 0.10 Plugins Reference Manual | ||||
|---|---|---|---|---|
GstMonoscope;
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 | 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 ] |
| 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 |
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;