package FFMPEG;

public abstract class VideoStream extends Stream
{
    public final String manifest;

    protected VideoStream(String manifest)
    {
        this.manifest = manifest;
        // test
        this.getManifestExtension();
    }

    @Override
    public final String getManifest()
    {
        String ext = "." + this.getManifestExtension();
        if (this.manifest.endsWith(ext))
        {
            return this.manifest;
        }
        else
        {
            return this.manifest + ext;
        }
    }

    public final String getManifestExtension()
    {
        return getManifestExtension(this.getClass());
    }

    public static String getManifestExtension(Class c)
    {
        VideoStreamDirectory videoStreamDirectory = c.getAnnotation(VideoStreamDirectory.class);
        if (videoStreamDirectory == null)
        {
            throw new RuntimeException("Class that extends " +
                    VideoStream.class.getName() +
                    " must have annotation " +
                    VideoStreamDirectory.class.getName());
        }
        return videoStreamDirectory.manifestExtension();
    }
}