MinGW generated executable gives "Decoder not found" on Windows 10

[ngasull]

In short: stream.codec().decoder().video() returns error Decoder not found on Win10 through MinGW linux build with target x86_64-pc-windows-gnu.

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First of all, thanks to all contributors for making such projects possible! I'll try to be concise.

This code runs well on my linux but not on Win 10 through mingw:

    ffmpeg::init()?;
    let input_path = std::env::current_dir().unwrap().join("video.mp4");
    let input_str = input_path.to_string_lossy().into_owned();
    let mut input = ffmpeg::format::input(&input_str)?;
    let (video_stream_id, mut video_decoder) = {
        let stream = input
            .streams()
            .best(ffmpeg::util::media::Type::Video)
            .ok_or(anyhow!("Failed to get video stream"))?;
        (stream.index(), stream.codec().decoder().video()?)
    };

Features (because can't find libavresample):

[dependencies.ffmpeg]
version = "^0.2.0-alpha"
default-features = false
features = ["codec", "format", "software-resampling", "software-scaling"]

The linking lib and dll are 4.2.1 and come from here: https://ffmpeg.zeranoe.com/builds/

build.rs:

use std::env;
use std::path::PathBuf;

fn main() {
    let target = env::var("TARGET").unwrap();
    if target.contains("pc-windows") {
        let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
        let mut lib_dir = manifest_dir.clone();
        lib_dir.push("lib");
        lib_dir.push(&target);
        lib_dir.push("lib");
        println!("cargo:rustc-link-search=all={}", lib_dir.display());
    }
}

I'm trying to open this video.

Output of the exe with wine64:

0009:fixme:thread:SetThreadStackGuarantee (0x33fbf0): stub
Error: Decoder not found

I'm also having the issue on a real Windows 10 installed on dual boot. I've tried many tweaks and seemingly searched the whole internet DuckDuckGo in order to find some sort of solution with no clue. I started to have cold sweats when I realized the complex story of ffmpeg and libav and that I might have just used the wrong libs or something.

Any help is welcome, thanks a lot for reading me! 🙏

Edit: forgot to mention target = x86_64-pc-windows-gnu