[FFmpeg-trac] #5978(avformat:new): FFprobe calculates timecode wrong with mp4 ntsc framerates

FFmpeg trac at avcodec.org
Fri Nov 25 12:00:59 EET 2016


#5978: FFprobe calculates timecode wrong with mp4 ntsc framerates
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             Reporter:  haze.ortner   |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  normal        |                Component:  avformat
              Version:  git-master    |               Resolution:
             Keywords:  timecode mov  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by haze.ortner):

 Replying to [comment:5 cehoyos]:
 > It would be 2:58 if the timecode framerate were 60 instead of 59.

 I see, the file is straight from a gopro camera using this gear:
 [http://www.syncbac.com/ Timecode Systems Syncbac]

 FCXP, Adobe Premiere CC and Vegas reads the timecode right. Vegas can be
 off by a frame sometimes.

 If you shoot in 60fps on the gopro, the syncbac uses 29.97 ND for
 timecode.

 I have more test files if that helps?

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Ticket URL: <https://trac.ffmpeg.org/ticket/5978#comment:6>
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