/// <summary>
/// Render subtitles on video texture if enabled and available.
/// </summary>
protected override void PostProcessTexture(Texture targetTexture)
{
_subtitleRenderer.DrawOverlay(targetTexture);
}
/// <summary>
/// Render BluRay OSD on video surface if available.
/// </summary>
protected override void PostProcessTexture(Surface targetSurface)
{
_osdRenderer.DrawOverlay(targetSurface);
_subtitleRenderer.DrawOverlay(targetSurface);
}