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GStreamer Good Plugins 0.10 Plugins Reference Manual | ![]() |
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Top | Description |
Monoscope is an audio visualisation element. It creates a coloured curve of the audio signal like on an oscilloscope.
1 |
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 ] |
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 */ 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; };