Plex Web Player ignores PAR

There is definitely a discrepancy between the aspect ratio information embedded in the stream, vs. what’s in the container:

Width                                    : 700
Width                                    : 700 pixels
Height                                   : 568
Height                                   : 568 pixels
Stored_Width                             : 704
Stored_Height                            : 576
Sampled_Width                            : 700
Sampled_Height                           : 568
Pixel aspect ratio                       : 1.455
Original pixel aspect ratio              : 1.000
Display aspect ratio                     : 1.793
Display aspect ratio                     : 16:9
Original display aspect ratio            : 1.232
Original display aspect ratio            : 5:4

Link with more info:Roku ignores aspect ratio flag when direct playing - #3 by Volts

And extracting just the h264 gives a file with the wrong ratio. I think this can be fixed with an ffmpeg bitstream filter. Back in a few!