I have tried a couple, but they seem to just be pulling a series of still images from the camera/DVR instead of connecting to the RTSP stream of H264,
The last one I tried is called "IP Camera Viewer full" which was a few bucks and will connect to both my dahua cameras, some other brand cameras and my cheap no brand DVR, but its a series of still images.
The windows CMS software that came with the camera can connect to everything just fine and stream smooth 25/30FPS H264. But I want something to run on the firetv not a windows app.