[FFmpeg-trac] #8691(undetermined:new): Artefact on mp4 convertion to mpg

FFmpeg trac at avcodec.org
Thu May 28 18:13:22 EEST 2020

#8691: Artefact on mp4 convertion to mpg
             Reporter:  cybel        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug:
 How to reproduce:
 % ffmpeg -i input -target ntsc-dvd -codec:v mpeg2video -vf
 scale=720x576,interlace -b:v 4000k -codec:a ac3 -b:a 192k -ar 48000 output
 ffmpeg version last
 built on ...

 I downloaded a mp4 video from the web on my computer with good quality.
 I converted it with the specified command with FFMPEG.
 All did okay.
 But when i write it on a DVD, my lector transmited some artefacts on my
 monitor at every view changement.
 Is it possible to convert with quality some mp4 videos to mpg with FFMPEG
 or did i maked a mistake with the command.

Ticket URL: <https://trac.ffmpeg.org/ticket/8691>
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