[FFmpeg-trac] #9497(undetermined:reopened): ffmpeg reports wrong display aspect ratio (DAR) for matroska files.

FFmpeg trac at avcodec.org
Sat Nov 6 10:29:26 EET 2021


#9497: ffmpeg reports wrong display aspect ratio (DAR) for matroska files.
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             Reporter:  Rikitiki     |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by Rikitiki):

 * status:  closed => reopened
 * resolution:  wontfix =>

Comment:

 To prevent the rounding, can ffmpeg store Sample Aspect Ratio in its
 internal contexts as rational number? Something like
 [https://www.boost.org/doc/libs/1_77_0/libs/rational/rational.html] or
 [https://docs.python.org/3/library/fractions.html].
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Ticket URL: <https://trac.ffmpeg.org/ticket/9497#comment:2>
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