[FFmpeg-trac] #6817(avfilter:new): scale2ref produce stuttering with HD MPEG (HD-DVD, EVO)

[FFmpeg]

#6817: scale2ref produce stuttering with HD MPEG (HD-DVD, EVO)
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             Reporter:  Sami32      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  minor       |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:  scale2ref   |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Sami32):

 That the following command line without the first scaling filter give the
 same stuttering output:

 {{{
 % ffmpeg -i "F:\!MEDIA_TEST_FILES\UMS Video Testing Suite
 (20150121)\TESTS\INTERNAL SUBTITLES\DVBSUB_.mkv" -filter_complex
 [0:s:0][0v]scale2ref[sub][video];[video][sub]overlay -sn -an -map_metadata
 -1 -bufsize 1835k -maxrate 9800k -muxrate 9800k -g 25 -qmax 7 -qmin 2 -c:v
 mpeg2video -f mpeg NUL
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6817#comment:4>
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