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Maniphest T43833

mp4 VSE import audio/video out of sync
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Description

When importing mp4 video files into VSE (Drag into vse timestrip), the audio and track is out of sync. (it seems like the video track is not imported with the correct framerate)

Event Timeline

David Jeske (jeske) created this task.Feb 27 2015, 5:57 PM
David Jeske (jeske) raised the priority of this task from to 50.
David Jeske (jeske) updated the task description. (Show Details)
David Jeske (jeske) edited a custom field.
David Jeske (jeske) added a subscriber: David Jeske (jeske).

Here is a sample video..

https://dl.dropboxusercontent.com/u/428467/blender-import-sample-video.mp4

David Jeske (jeske) added a comment.Feb 27 2015, 6:03 PM

Here is a video of the problem occuring on said sample video..

https://www.youtube.com/watch?v=cECOL8bDQuc&feature=youtu.be

Bastien Montagne (mont29) changed the task status from Unknown Status to Archived.Feb 27 2015, 6:45 PM
Bastien Montagne (mont29) claimed this task.

That video is a 60fps one, just set Blender scene's FPS to that and everything is OK.

David Jeske (jeske) added a comment.EditedFeb 28 2015, 3:25 AM

So how can i mix together a 30fps video and a 60fps video to make a 30 fps video?

I don't want the scene fps to be 60 fps. I just want to bring on a 60 fps source. This is no problem in other video editors like Vegas or final cut. The source is a source and the output is an output.

Or is this another place where blender is choosing to be force users to be data editors instead of users?

Bastien Montagne (mont29) added a comment.Feb 28 2015, 8:59 AM

This is currently not possible, unless you use 'hacks' like the speed effect strip (but this is not really handy), you have to convert your videos which are not at the scene's FPS outside of Blender.

Currently, Blender does not have any automatic 'time remapping' to keep the real length of its videos, it’s on our TODO list.