[FFmpeg-trac] #11126(ffmpeg:new): Filter "setpts=PTS-STARTPTS" in 2-pass VP9 may cause abnormal bitrate allocation

FFmpeg trac at avcodec.org
Tue Aug 6 02:20:01 EEST 2024


#11126: Filter "setpts=PTS-STARTPTS" in 2-pass VP9 may cause abnormal bitrate
allocation
-------------------------------------+-------------------------------------
             Reporter:  Saul Baker   |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  ffmpeg
              Version:  git-master   |               Resolution:
             Keywords:  regression   |               Blocked By:
  2-pass                             |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by MasterQuestionable):

 ͏    Well... it just appears to be Base64 encoded raw data.
 ͏    Decoded non-Plain-Text: why even the bother..?

 ͏    Both Base64 strings decode to 269,784 Bytes each.
 ͏    Mostly of alike difference:
 [[Image(
 "https://raw.githubusercontent.com/MasterInQuestion/attach/main/@ext/trac.ffmpeg.org/ticket/11126/passlog.webp",
 alt="͏
 https://github.com/MasterInQuestion/attach/raw/main/@ext/trac.ffmpeg.org/ticket/11126/passlog.webp"
 )]]

 ͏    Meanwhile I wonder why did you insist the timestamps meddling?
 ͏    Didn't it work without..? Or try without touching timestamps for
 "-pass 1"?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11126#comment:10>
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