Function dynamic_linking

build.rs:362–397

(env_vars: &EnvVars)

}

fn dynamic_linking(env_vars: &EnvVars) {
    let ffmpeg_dll_path = env_vars.ffmpeg_dll_path.as_ref().unwrap();

    let output_binding_path = &env_vars.out_dir.as_ref().unwrap().join("binding.rs");

    // Extract dll name and the dir the dll is in.
    let (ffmpeg_dll_name, ffmpeg_dll_dir) = {
        let mut ffmpeg_dll_path = PathBuf::from(ffmpeg_dll_path);
        // Without extension.
        let ffmpeg_dll_filename = ffmpeg_dll_path.file_stem().unwrap();
        let ffmpeg_dll_name = if cfg!(target_os = "windows") {
            ffmpeg_dll_filename
        } else {
            ffmpeg_dll_filename.trim_start_matches("lib")
        }
        .to_string();
        // Remove file name.
        ffmpeg_dll_path.pop();
        let ffmpeg_dll_path = ffmpeg_dll_path.to_string();
        (ffmpeg_dll_name, ffmpeg_dll_path)
    };

    println!("cargo:rustc-link-lib=dylib={}", ffmpeg_dll_name);
    println!("cargo:rustc-link-search=native={}", ffmpeg_dll_dir);

    if let Some(ffmpeg_binding_path) = env_vars.ffmpeg_binding_path.as_ref() {
        use_prebuilt_binding(ffmpeg_binding_path, output_binding_path);
    } else if let Some(ffmpeg_include_dir) = env_vars.ffmpeg_include_dir.as_ref() {
        generate_bindings(ffmpeg_include_dir, &HEADERS)
            // Is it correct to generate binding to one file? :-/
            .write_to_file(output_binding_path)
            .expect("Cannot write binding to file.");
    } else {
        panic!("No binding generation method is set!");
    }
}

fn static_linking(env_vars: &EnvVars) {
    let output_binding_path = &env_vars.out_dir.as_ref().unwrap().join("binding.rs");