Hello,
I have try a communication between a Windows PC (with a webcam) and Ipad1 and video quality is very very bad (bad color, bad pixel). And on console debug of Ipad i find this following error:
vpx_codec_decode failed : 1 Unspecified internal error (A stream must start with a complete key frame))
I have try a communication between Android and Ipad1, it works fine (without any error message) and a I also try between Android and Windows and it also works fine.