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.

• still pictures
• animated gifs

• ardour-svn1686 OSC Canvas (v6) | same as below, but with a few Hunks offset.
• ardour-svn1640 OSC Canvas (v6) | sourceforge mirror (v6) - added Config & En/Disable via Options-menu “SendOSC”
• ardour-svn1640 OSC Canvas (v4) | sourceforge mirror (v4) - hardcoded, always on

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>

 void
 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);
 }

• read http://ardour.org/building

svn co -r 1640 http://subversion.ardour.org/svn/ardour2/trunk ardour2
cd ardour2
patch -p0 < .../ardour-svn1640-osccanvas_6.diff
scons