ffmpeg doesn't have included codecs

[synthercat]

I tried both ffmpeg-nightly-vulkan (100653) & ffmpeg-nightly (100653)

If I try to compress using a video using libvpx-VP9 codec
ffmpeg -i inputfile c:v libvpx-vp9 -sn -dn -an outputfile
I get a message that there is no libvpx-vp9 (I don't remember the exact output right now)
However if I type
ffmpeg -codecs
the codec is there.

For the time being I am forced to download directly from https://github.com/BtbN/FFmpeg-Builds/releases
(for example) ffmpeg-N-100653-geb0f532c98-win64-gpl-vulkan.zip

[synthercat]

I just realized it's a duplicate unresolved issue #2018 with a workarround being to use ffmpeg.exe literally in PowerShell (meaning no '.\ in files and also typing ffmpeg.exe instead of ffmpeg).

That is inconvinient. I hope it somehow get's resolved.
Have a nice day whoever reading this!

[HUMORCE]

$ ffmpeg -i .\input.webm -codec libvpx-vp9 -sn -dn -an out.mkv
ffmpeg version n4.3.1-29-g89daac5fe2 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 9.3-win32 (GCC) 20200320
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-opencl --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
  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
Input #0, matroska,webm, from '.\input.webm':
  Metadata:
    ENCODER         : Lavf58.45.100
  Duration: 00:00:54.46, start: -0.007000, bitrate: 11560 kb/s
    Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, bt709), 2560x1440, SAR 1:1 DAR 16:9, 60 fps, 60 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      DURATION        : 00:00:54.449000000
    Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:00:54.461000000
Stream mapping:
  Stream #0:0 -> #0:0 (vp9 (native) -> vp9 (libvpx-vp9))
Press [q] to stop, [?] for help
[libvpx-vp9 @ 0000021549020780] v1.9.0
[libvpx-vp9 @ 0000021549020780] Neither bitrate nor constrained quality specified, using default CRF of 32
Output #0, matroska, to 'out.mkv':
  Metadata:
    encoder         : Lavf58.45.100
    Stream #0:0(eng): Video: vp9 (libvpx-vp9) (VP90 / 0x30395056), yuv420p, 2560x1440 [SAR 1:1 DAR 16:9], q=-1--1, 60 fps, 1k tbn, 60 tbc (default)
    Metadata:
      DURATION        : 00:00:54.449000000
      encoder         : Lavc58.91.100 libvpx-vp9
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Error writing trailer of out.mkv: Immediate exit requested bitrate=   6.6kbits/s speed=0.145x
frame=   66 fps=8.0 q=0.0 Lsize=     454kB time=00:00:01.08 bitrate=3433.2kbits/s speed=0.132x
video:453kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.226866%
Exiting normally, received signal 2.

powershell can't handle args like:

-c:v / -c:a / -codec:v / -codec:a ...

try:

-c / -codec / -vcodec / -acodec

[synthercat]

Downloading ffmpeg directly from it's repository and placing it in a folder that is included in PATH variable can accept -codec:v etc but I guess your solution will work too as I was always using : character. I guess all I got to do is find all the equivalent arguments.
Thank you for your time!

[HUMORCE]

maybe it's the shim problem.

try this:
https://gist.github.com/HUMORCE/7ce41aba793085e8c3c5f6e8fd1266b9