libgsm encoder is missing on Windows

[EntityinArray]

FFmpeg build: autobuild-2023-01-13-12-58 98b1aa8
OS: Microsoft Windows 10 Home 22H2 64-bit

I'm using ffmpeg on Windows and I want to take a music file, encode it in GSM via libgsm and back again to achieve authentic telephone-like sound effect. However, I noticed that this build is missing GSM encoder. Under linux gsm encoding worked fine.
Is there any way to get GSM encoder?

Thanks!

[BtbN]

libgsm isn't enabled in these builds on either platform, so I'm more confused how it would possibly have worked on Linux than anything else.
You probably used your distributions ffmpeg, not this build.

It shouldn't be impossible to add libgsm, I'll take a look at it at some point, but can't promise when exactly.

[MartinEesmaa]

Hello, @EntityinArray. I already added libgsm support to my forked repo.

See my file shell script of libgsm: https://github.com/MartinEesmaa/FFmpeg-Builds/blob/master/scripts.d/50-libgsm.sh

Thanks! :)

• Martin Eesmaa