Add Windows ARM64 support for FFmpeg videoio plugin build#106

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pratham-mcw wants to merge 1 commit into

opencv:ffmpeg/4.x_20250625_srcfrom

pratham-mcw:ffmpeg/4.x_20250625_src

pratham-mcw commented Apr 8, 2026

PR Description:

This change adds support for building the OpenCV FFmpeg videoio plugin (opencv_videoio_ffmpeg_64.dll) for Windows ARM64 (aarch64).

Key changes:

Added ARM64 build targets for OpenCV and videoio plugin.
Integrated llvm-mingw toolchain for cross-compilation.
Extended build scripts to support ARM64 (libvpx, openh264, aom, FFmpeg).
Updated Docker environment to use Ubuntu 22.04 and LLVM-based toolchain.
Adjusted linker flags and build configuration for ARM64 compatibility.

These changes enable generation of FFmpeg-based videoio binaries for Windows ARM64, similar to existing x86/x64 builds.


          Add Windows ARM64 support for FFmpeg videoio plugin build

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