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Exact beat - provide audio->music mapping for region split.

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- for those not in the know, this series provides a way to
	  remove the temporal distortion introduced when using an
	  audio frame-based gui for music-locked objects.

	  In short, the gui uses an audio frame representation to move
	  objects. It displays the object using frame_at_beat(), quantizing
	  the time value to audio frames. This is fine until the user selects
	  that frame but expects it to be interpreted as a beat.
	  Thus beat_at_frame() would not produce the user-expected beat
	  (temporal quantization error of up to 0.5 audio samples).
	  This is one method of mapping audio time to music time accurately.
This commit is contained in:
nick_m 2016-06-16 00:18:27 +10:00
parent 2d5238d875
commit 94e0a15325
25 changed files with 115 additions and 102 deletions
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2
gtk2_ardour/editor_mouse.cc
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@ -1037,7 +1037,7 @@ Editor::button_press_handler_1 (ArdourCanvas::Item* item, GdkEvent* event, ItemT
if (!prev) {
_drags->set (new RegionCreateDrag (this, item, parent), event);
} else {
prev->set_length (t - prev->position ());
prev->set_length (t - prev->position (), get_grid_music_divisions (event->button.state));
}
}
} else {