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constant frame rate miscalculation on video import to VSE
Closed, InvalidPublic

Description

System Information
Windows 10 v.1709 (OS Build 16299.19)
Nvidia GTX 1060 (6GB)
Intel i5 3570K
16GB RAM

Blender Version
Broken: (2.79)
Worked: (2.78c)

Short description of error
Blender's ability to calculate a video's FPS on import seems to have degraded in blender 2.79. I have a constant 24 fps video that was animated out by blender and is 5789 (video frames) and 5788 (audio frames). When I import it into blender VSE, through drag and drop or "Add-> Movie" menu, blender 2.79 will detect that the video has a "Custom (-0.02 fps)." The the video strip imports and shows that it is a correct 5788 frames but the audio strip is -4 frames. Blender 2.78c does not have this same issue. It auto detects the frame rate from the same imported video correctly.

The video I am importing was animated out by blender using the following encoding settings:

Video Resolution: 1920 x 1080
Color Mode: RGB
Container: MPEG-4
Output Quality: High Quality
Encoding Speed : Medium Speed
FPS: 24 fps
keyframe interval: 12
Max B-frames: Unchecked
Audio Codec: AAC
Bitrate: 320

Work around:
If you manually set the correct fps, it will display the strips correctly in the Video Sequencer. It seems that this is just a glitch with the FPS autodetection.

Details

Type
Bug

Event Timeline

Sergey Sharybin (sergey) triaged this task as Needs Information from User priority.Dec 11 2017, 3:29 PM

Please always attach files which demonstrates the issue.

Fable Fox (fablefox) closed this task as Invalid.Dec 18 2017, 12:39 PM
Fable Fox (fablefox) claimed this task.

Since last asking for information it has been 7 or more days, due to the policy of our bug tracker we will have to archive the report until the requested information is given.