#8523: ffmpeg converts 30fps input to 29.97fps when converting to .mxf
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Reporter: reakon | Owner:
Type: defect | Status: open
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mxf | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by reakon):
The closest to a spec I can find is a mention about IEC61937-14:2017
standard in kexoplayer's source code covering similar functionality.
Though, since rates for 30/1.001 an 60/1.001 are already defined, we can
calculate average rate for remaining 120/1.001 as such:
{{{
samplerate/framerate = samples/frames = 48000/(120/1.001) = 4004/10 =
400.4
}}}
Spreading it to 5 frames would give 2x 401 sample frames and 3x 400
frames. I'm not sure if these should be put in a specific sequence tho.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8523#comment:10>
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