private static async Task ReplaceBackgroundColorAsync()
{
var input = "/Users/colin/Downloads/macos64/src.mp4";
var output = "/Users/colin/Downloads/macos64/src-3.mp4";
await FFmpegHelper.ReplaceBackgroundAsync(input, output, "70de77", 0.1f, 0.2f, "000000", 640, 480,
TimeSpan.FromSeconds(10));
}
private static async Task ReplaceBackgroundAsync()
{
var input = "/Users/zhangcheng/Desktop/macos64/src.mp4";
var output = "/Users/zhangcheng/Desktop/macos64/src-3.mp4";
var background = "/Users/zhangcheng/Desktop/macos64/bg.mp4";
await FFmpegHelper.ReplaceBackgroundAsync(input, output, "70de77", 0.1f, 0.2f, background,
TimeSpan.FromSeconds(10));
}