gjvideotimeline and ardour

I’ve succeeded to “overlay” a video-timeline always-on-top over the ardour editor window synchronizing ardour’s canvas zoom level via OSC.

run gjvidtimeline version >= 0.1.1 (svn 10) with -o 5280 command line argument (OSC server). connect gjvidtimeline to JACK and select Follow: osc in gjvt’s task-bar. - choose “always-on-top” from the windowmanager and adjust the window over the ardour-edit-canvas.


Note: ardours playhead is in sync with the (red+green=yellow) start/end location markers in gjvidtimeline. So are the start/end positions of the canvas.

ardour OSC patch

latest version:

simple patch to outline the idea (v1):

. --- gtk2_ardour/editor_canvas.cc        (revision 1633)
. +++ gtk2_ardour/editor_canvas.cc        (working copy)
@@ -703,6 +703,7 @@
        return FALSE;

+#include <lo/lo.h>

 Editor::canvas_horizontally_scrolled ()
@@ -724,5 +725,9 @@
        update_fixed_rulers ();

        tempo_map_changed (Change (0), !_dragging_hscrollbar);
+       //printf("DEBUG: hscroll! %lu %lu\n",(long unsigned) leftmost_frame,(long unsigned) rightmost_frame);
+       lo_address a= lo_address_new ("localhost", "5280");
+       lo_send(a,"/ardour2/info/canvas","ii",(unsigned long) leftmost_frame, (unsigned long) rightmost_frame);
+       lo_address_free(a);

Building Ardour with the patch

svn co -r 1640 http://subversion.ardour.org/svn/ardour2/trunk ardour2
cd ardour2
patch -p0 < .../ardour-svn1640-osccanvas_4.diff

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