Hi,

Please report a bug following this FAQ :
https://answers.launchpad.net/openshot/+faq/2197

You should update your version of MLT. Take a look at this other FAQ :
https://answers.launchpad.net/openshot/+faq/1861

Thanks.

2013/3/13 Victor Trac <email address hidden>

> Public bug reported:
>
> 1) Ubuntu 12.10
> 2) apt-get install openshot
> 3) Openshot 1.4.3
> 4) melt 0.8.0
>
> I was adding a still image to a track and messing with the fades. I'm
> not sure what happened, but OpenShot crashed. It must have saved the
> project right before the crash, because all subsequent tries to open the
> file resulted in OpenShot crashing. Running OpenShot from the command
> line showed a ZeroDivisionError:
>
> Traceback (most recent call last):
>   File "/usr/lib/pymodules/python2.7/openshot/windows/MainGTK.py", line
> 881, in recent_item_activated
>     self.open_project(file_to_open)
>   File "/usr/lib/pymodules/python2.7/openshot/windows/MainGTK.py", line
> 886, in open_project
>     self.project.Open(file_to_open)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 347, in Open
>     open_project.open_project(self, file_path)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/open_project.py",
> line 123, in open_project
>     project_object.RefreshXML()
>   File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 287, in RefreshXML
>     self.GenerateXML(os.path.join(self.USER_DIR, "sequence.mlt"))
>   File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 258, in GenerateXML
>     self.sequences[0].GenerateXML(dom, tractor1)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/sequences.py", line
> 232, in GenerateXML
>     MyTrack.GenerateXML(dom, multitrack, fps=fps)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/track.py", line 111,
> in GenerateXML
>     current_frame = MyClip.GenerateXML(dom, playlist, current_frame,
> fps=fps)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line 654,
> in GenerateXML
>     self.GenerateComposites(dom, current_frame, ending_frame,
> preview_mode, fps=fps)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line 754,
> in GenerateComposites
>     self.CreateCompositeXML(dom, current_frame, end, "fade in", fps=fps)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line 829,
> in CreateCompositeXML
>     h1, h2 = self.get_keyframe_values("height", current_frame, end_frame,
> fps, clip_length_frames, kf_start, kf_end)
>   File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line 1026,
> in get_keyframe_values
>     units = prop_diff / clip_length_frames
> ZeroDivisionError: float division by zero
>
> Editing /usr/lib/pymodules/python2.7/openshot/classes/clip.py with this
> fixed my problem:
>
> -               if prop_diff != 0:
> +               if prop_diff != 0 and clip_length_frames > 0.0:
>
> ** Affects: openshot
>      Importance: Undecided
>          Status: New
>
> --
> You received this bug notification because you are a member of OpenShot
> Bugs, which is subscribed to OpenShot Video Editor.
> https://bugs.launchpad.net/bugs/1154416
>
> Title:
>   ZeroDivisionError: float division by zero
>
> Status in OpenShot Video Editor:
>   New
>
> Bug description:
>   1) Ubuntu 12.10
>   2) apt-get install openshot
>   3) Openshot 1.4.3
>   4) melt 0.8.0
>
>   I was adding a still image to a track and messing with the fades. I'm
>   not sure what happened, but OpenShot crashed. It must have saved the
>   project right before the crash, because all subsequent tries to open
>   the file resulted in OpenShot crashing. Running OpenShot from the
>   command line showed a ZeroDivisionError:
>
>   Traceback (most recent call last):
>     File "/usr/lib/pymodules/python2.7/openshot/windows/MainGTK.py", line
> 881, in recent_item_activated
>       self.open_project(file_to_open)
>     File "/usr/lib/pymodules/python2.7/openshot/windows/MainGTK.py", line
> 886, in open_project
>       self.project.Open(file_to_open)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 347, in Open
>       open_project.open_project(self, file_path)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/open_project.py",
> line 123, in open_project
>       project_object.RefreshXML()
>     File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 287, in RefreshXML
>       self.GenerateXML(os.path.join(self.USER_DIR, "sequence.mlt"))
>     File "/usr/lib/pymodules/python2.7/openshot/classes/project.py", line
> 258, in GenerateXML
>       self.sequences[0].GenerateXML(dom, tractor1)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/sequences.py",
> line 232, in GenerateXML
>       MyTrack.GenerateXML(dom, multitrack, fps=fps)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/track.py", line
> 111, in GenerateXML
>       current_frame = MyClip.GenerateXML(dom, playlist, current_frame,
> fps=fps)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line
> 654, in GenerateXML
>       self.GenerateComposites(dom, current_frame, ending_frame,
> preview_mode, fps=fps)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line
> 754, in GenerateComposites
>       self.CreateCompositeXML(dom, current_frame, end, "fade in", fps=fps)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line
> 829, in CreateCompositeXML
>       h1, h2 = self.get_keyframe_values("height", current_frame,
> end_frame, fps, clip_length_frames, kf_start, kf_end)
>     File "/usr/lib/pymodules/python2.7/openshot/classes/clip.py", line
> 1026, in get_keyframe_values
>       units = prop_diff / clip_length_frames
>   ZeroDivisionError: float division by zero
>
>   Editing /usr/lib/pymodules/python2.7/openshot/classes/clip.py with
>   this fixed my problem:
>
>   -             if prop_diff != 0:
>   +             if prop_diff != 0 and clip_length_frames > 0.0:
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/openshot/+bug/1154416/+subscriptions
>
> --
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>



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