public AssImage RenderFrame([NotNull] AssTrack track, long timestamp, out FrameChange frameChange)
{
this.EnsureNotDisposed();
if (_width <= 0 || _height <= 0)
{
throw new AssException("Cannot render frame: frame dimensions are not initialized");
}
var framePointer = NativeMethods.ass_render_frame(_nativePointer, track.NativePointer, timestamp, out frameChange);
// framePointer == nullptr => the image is blank
return(new AssImage(this, framePointer));
}
public AssImage RenderFrame([NotNull] AssTrack track, long timestamp)
{
return(RenderFrame(track, timestamp, out _));
}