[FFmpeg-user] FFmpeg 3.2.14 "Hypatia" : libavformat version is not 57. 56.100 as written but 57. 56.101

[Laurent ROCHER]

Hello,

ffmpeg run well for many videos (Thanks !) but for some I had an error 
message which make me think that I would need a ffmpeg version running 
the 57.56.100 version of libavformat.

On your page https://ffmpeg.org/download.html the version of libavformat 
of  ffmpeg 3.2.14 is said to be 57.57.100 but in fact it is 57.56.101 
(cf version.h of libavformat)

My error message is the following :

When running ffmpeg :

-----------------------------

 > ffmpeg -i Cyrano.wmv Cyrano.mp4
 > ffmpeg version 3.2.14 Copyright (c) 2000-2019 the FFmpeg developers
 >   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
 >   configuration:
 >   libavutil      55. 34.101 / 55. 34.101
 >   libavcodec     57. 64.101 / 57. 64.101
 >   libavformat    57. 56.100 / 57. 56.100
 >   libavdevice    57.  1.100 / 57.  1.100
 >   libavfilter     6. 65.100 /  6. 65.100
 >   libswscale      4.  2.100 /  4.  2.100
 >   libswresample   2.  3.100 /  2.  3.100
 > Cyrano.wmv: Invalid data found when processing input

When running mencoder :

---------------------------------

 > mencoder Cyrano.wmv -ofps 23.976 -ovc lavc -oac copy -o Cyrano.avi
 > MEncoder 1.3.0 (Debian), built with gcc-6.2.1 (C) 2000-2016 MPlayer Team
 > success: format: 0  data: 0x0 - 0x75b09ffa
 > *libavformat version 57.56.101* (external)
 > *Mismatching header version 57.56.100*


As I have plenty of videos VHS tapes which have been converted to wmv 
files (via "VHS to DVD 4.0 SE" software) with possibly a header version 
57.56.100 of libavformat (if I can understand well the error message), I 
would really be thankfull for any help you could give me.

Sincerely yours,

Laurent