ardour/livetrax
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fix rounding issue when dragging video with fractional fps

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This commit is contained in:
Robin Gareus 2013-08-04 18:49:28 +02:00
parent 68fc5bbf6c
commit 00b694fd79
2 changed files with 2 additions and 2 deletions
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2
gtk2_ardour/editor_drag.cc
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@ -1665,7 +1665,7 @@ VideoTimeLineDrag::motion (GdkEvent* event, bool first_move)
}
framecnt_t dt = adjusted_current_frame (event) - raw_grab_frame() + _pointer_frame_offset;
dt = ARDOUR_UI::instance()->video_timeline->quantify_frames_to_apv(dt);
dt = ARDOUR_UI::instance()->video_timeline->quantify_frames_to_apv(_startdrag_video_offset+dt) - _startdrag_video_offset;
if (_max_backwards_drag >= 0 && dt <= - _max_backwards_drag) {
dt = - _max_backwards_drag;

2
gtk2_ardour/video_timeline.h
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@ -96,7 +96,7 @@ class VideoTimeLine : public sigc::trackable, public ARDOUR::SessionHandlePtr, p
float get_apv(); /* audio frames per video frame; */
ARDOUR::framecnt_t get_duration () { return video_duration;}
ARDOUR::frameoffset_t get_offset () { return video_offset;}
ARDOUR::frameoffset_t quantify_frames_to_apv (ARDOUR::frameoffset_t offset) { return floor(offset/get_apv())*get_apv(); }
ARDOUR::frameoffset_t quantify_frames_to_apv (ARDOUR::frameoffset_t offset) { return rint(offset/get_apv())*get_apv(); }
void set_offset (ARDOUR::frameoffset_t offset) { video_offset = quantify_frames_to_apv(offset); } // this function does not update video_offset_p, call save_undo() to finalize changes to this! - this fn is currently only used from editor_drag.cc
protected: