No fps info in h264: is losseless patching possible?

I have an h264 (TS) file which lacks information on fps, and hence I cannot load it to VideoReDo for cutting and chaptering. It's not a problem of the container but the video stream itself. I googled, and tried several tools, including h264info (produced even more weird stream), and modified ffmpeg but no luck.

So, do you know if anything like DVDPatcher exists for h264 to correct the file without reconverting it? Any suggestions are welcome. Thanks