Opened 2 years ago
Last modified 17 months ago
#9882 new defect
VP9 encoding progress broken on 1st pass
Reported by: | nikolasr | Owned by: | |
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Priority: | normal | Component: | ffmpeg |
Version: | git-master | Keywords: | libvpx regression |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description (last modified by )
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 4e145f1dcdcbe19e8f8e98940dab04e9332a8b5b, maybe even 4740fea7ddf5f81577c9f5a0c096a8a16a54716e (not sure about that).
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.
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)
Attachments (1)
Change History (9)
by , 2 years ago
Attachment: | ffmpeg-20220818-221804.log added |
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comment:1 by , 2 years ago
Description: | modified (diff) |
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comment:2 by , 2 years ago
Description: | modified (diff) |
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comment:3 by , 2 years ago
Version: | unspecified → git-master |
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Still present in git-master. Could any dev please take a look at it? Maybe Anton Khirnov, pretty please?
comment:4 by , 2 years ago
Keywords: | fftools/ffmpeg_mux.c added |
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comment:5 by , 2 years ago
Component: | ffmpeg → undetermined |
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Keywords: | libvpx regression added; fftools/ffmpeg_mux.c removed |
comment:6 by , 2 years ago
Component: | undetermined → ffmpeg |
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Reproduced by developer: | set |
Regression since 4cd19eaffa1fba01a7e8622a0f47f210ca4e8bcf
comment:8 by , 17 months ago
still unresolved :'-(
Bug is also present even in *stable* 6.0 release!
report generated by ffmpeg