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GStreamer Buzztard Reference Manual | ![]() |
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GstTempo; void gst_tempo_change_tempo (GstTempo *self, glong beats_per_minute, glong ticks_per_beat, glong subticks_per_tick);
"beats-per-minute" gulong : Read / Write "subticks-per-tick" gulong : Read / Write "ticks-per-beat" gulong : Read / Write
This interface offers three GObject properties to specify a rythmic tempo of
the GStreamer pipeline. The tempo can be changed from the application side by
calling gst_tempo_change_tempo()
.
GstElements that implement this interface should use the given tempo, to
adjust their gst_object_sync_values()
cycle.
The difference between the tempo iface and the tempo-tag metadata is that the metadata describes the overall tempo, but the iface allows to change the tempo during playback.
beats-per-minute
" property"beats-per-minute" gulong : Read / Write
the number of beats per minute the top level pipeline uses.
Allowed values: >= 1
subticks-per-tick
" property"subticks-per-tick" gulong : Read / Write
the number of subticks (for smoothing) per tick the top level pipeline uses.
Allowed values: >= 1
ticks-per-beat
" property"ticks-per-beat" gulong : Read / Write
the number of ticks (events) per beat the top level pipeline uses.
Allowed values: >= 1