[FFmpeg-user] Encoding Warnings

[Jim]

On 06/29/20 17:39, Carl Eugen Hoyos wrote:
> Interesting that this warning is not present in the windows version of
> ffmpeg yet is on Linux.  Any idea why that would be?  Even more
> You do realize that FFmpeg offers neither a "windows version" nor
> a "Linux" version but only source code?
>
I absolutely do understand that Carl.  I am sorry - should have phrased 
it differently.  'Windows version' = the older version that I had 
running on the computer that recently died which ran the windows xp 
professional operating system, the full version of which was reported in 
my original post:

ffmpeg version N-78758-g5156578 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b
--enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme
--enable-libgsm
--enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus
--enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex
--enable-libtheora --enable-libtwolame --enable-libvidstab
--enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
--enable-lzma
--enable-decklink --enable-zlib
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 27.100 / 57. 27.100
libavformat 57. 26.100 / 57. 26.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 37.100 / 6. 37.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100



When I said 'Linux version', I was referring to the newer version I am 
running on the Linux machine:

ffmpeg version 4.3-statichttps://johnvansickle.com/ffmpeg/   Copyright (c)
2000-2020 the FFmpeg developers
   built with gcc 8 (Debian 8.3.0-6)
   configuration: --enable-gpl --enable-version3 --enable-static
--disable-debug --disable-ffplay --disable-indev=sndio
--disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-gmp --enable-libgme --enable-gray
--enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf
--enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband
--enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis
--enable-libopus --enable-libtheora --enable-libvidstab
--enable-libvo-amrwbenc --enable-libvpx --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d
--enable-libxvid --enable-libzvbi --enable-libzimg
   libavutil      56. 51.100 / 56. 51.100
   libavcodec     58. 91.100 / 58. 91.100
   libavformat    58. 45.100 / 58. 45.100
   libavdevice    58. 10.100 / 58. 10.100
   libavfilter     7. 85.100 /  7. 85.100
   libswscale      5.  7.100 /  5.  7.100
   libswresample   3.  7.100 /  3.  7.100
   libpostproc    55.  7.100 / 55.  7.100



What I should have said was: "Interesting that this warning is not 
present in ffmpeg version N-78758-g5156578 running on a windows xp 
operating system yet is on ffmpeg version 4.3-static running on Ubuntu 
Linux 20.04, each with the above reported compilation options & versions 
of the related libraries, when operating on identical files."  I 
apologize - did not realize that using shorthand as I did would cause 
confusion.

I've no idea how N-78758-g5156578 compares with 4.3-static as far as age 
goes, other than it's older because I've been running it for years.  
(And this is assuming it's not something to do with the underlying 
operating system and not ffmpeg itself.)  I am curious as to why the 
older version doesn't issue a warning that the newer version does, but 
it's not important either.

Jim