public string GenerateRotationDescriptionMessageArgArgument(string messageArg)
{
return((FfmpegRotationArgumentDeterminer.GetRotationArgFromMessageArg(messageArg)) switch
{
"90" => "90° counter-clockwise",
"270" => "90° clockwise",
"180" => "180°",
_ => throw new ArgumentException("Invalid or empty rotation message."),
});
public void Rotate(string messageArg)
{
if (File.Exists("video.mp4"))
{
var rotationArg = FfmpegRotationArgumentDeterminer.GetRotationArgFromMessageArg(messageArg);
_ffmpegExecutor.ExecuteFfmpegCommandWithArgString($"-i video.mp4 -c copy -metadata:s:v:0 rotate={rotationArg} video_rotated.mp4");
}
if (File.Exists("video_rotated.mp4"))
{
Console.WriteLine("video rotated successfully!");
}
else
{
throw new VideoRotateException("Video rotation failed.");
}
}
