[FFmpeg-trac] #7617(undetermined:new): ffmpeg performance on OSX
FFmpeg
trac at avcodec.org
Sat Dec 15 20:20:28 EET 2018
#7617: ffmpeg performance on OSX
-------------------------------------+-------------------------------------
Reporter: monochromec | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: osx | Blocked By:
performance | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: eliminating a track from an MKV container on 10.14.2
(model 14,2 16 GB main memory) takes two hours vs. five minutes on an
Armada XP (32 ARM v7). Video file is approx. 2.5 GB.
How to reproduce:
{{{
% ffmpeg -i in.mkv -map 0 -map -1:a:0 out.mkv
ffmpeg version: Installed via homebrew
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1 --enable-shared
--enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-
avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay
--enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-
videotoolbox
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
}}}
More than happy to provide more info as required - please let me know if
this should go to homebrew instead but I suspect a more generic issue in
code base.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7617>
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