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

[Carl Eugen Hoyos]

Am Mi., 11. März 2020 um 16:46 Uhr schrieb Laurent ROCHER
<laurent.rocher.free at free.fr>:

> 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)

Should be fixed.

>
> 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

Please test current FFmpeg git head, if the issue is reproducible
please provide a sample file.

> 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*

This is a very minor warning and not the reason that you cannot read
a specific file.

Carl Eugen