[FFmpeg-trac] #8443(undetermined:new): A/V drift when reencoding NTSC

FFmpeg trac at avcodec.org
Fri Dec 27 04:34:11 EET 2019

#8443: A/V drift when reencoding NTSC
             Reporter:               |                    Owner:
  madscientist159                    |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by madscientist159):

 Sorry, wasn't clear.  Yes, much longer sample (hours).  Drift was

 I'm currently running a long test to see if it's the encoding side
 affected or, ironically, if I fixed the encoding side some months back
 (through a bit of hacking to force proper hardware timestamps, etc. in a
 different ffmpeg tree than the one I'm testing with here), then got messed
 up by this bug affecting the recording / waveform extraction.

Ticket URL: <https://trac.ffmpeg.org/ticket/8443#comment:12>
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