[FFmpeg-trac] #9882(ffmpeg:new): VP9 encoding progress broken on 1st pass

[FFmpeg]

#9882: VP9 encoding progress broken on 1st pass
----------------------------------+---------------------------------------
             Reporter:  nikolasr  |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  ffmpeg    |                  Version:  unspecified
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 Summary of the bug:
 When converting a video to VP9 (libvpx-vp9), the encoding progress is not
 displayed on first pass.
 Instead of current frames and fps ffmpeg always outputs

 {{{
 frame=    0 fps=0.0 q=0.0 Lsize=N/A time=-577014:32:22.77 bitrate=N/A
 speed=N/A    /s speed=N/A
 }}}
 Things seem to go wrong beginning at commit
 919638ff5c99e33d91974506b19d42dcee04690b.
 Last known good is 4740fea7ddf5f81577c9f5a0c096a8a16a54716e.

 At 919638ff5c99e33d91974506b19d42dcee04690b "time" display is still 0:0:0.
 To get the provided sample display try commit
 2d924b3a630869c65fe0c76568910500f54ed057.

 Expected "good" result should be a progress output of current frames and
 current fps.
 Last known good for me is commit 4740fea7ddf5f81577c9f5a0c096a8a16a54716e

 Build:
 OS: Windows 10 64bit using media autobuild suite

 How to reproduce:
 {{{
 % ffmpeg.exe  -i test.mp4  -quality good -threads 4  -lag-in-frames 25
 -cpu-used 3 -auto-alt-ref 1 -arnr-maxframes 7 -arnr-strength 4  -aq-mode 2
 -enable-tpl 1 -row-mt 1 -c:v libvpx-vp9 -b:v 0 -crf 28 -pass 1 -an -f null
 pass1
 ffmpeg version N-107504-g0cdc18b556-gd5544f6457+3 Copyright (c) 2000-2022
 the FFmpeg developers
   built with gcc 12.1.0 (Rev3, Built by MSYS2 project)
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9882>
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