Hi William, On Thursday 11 December 2014 01:19:50 William Manley wrote: > On 10/12/14 23:54, Laurent Pinchart wrote: > > On Monday 08 December 2014 18:57:58 William Manley wrote: > >> The Magewell XI100DUSB-HDMI[1] video capture device reports the pixel > >> format "e436eb7d-524f-11ce-9f53-0020af0ba770". This is its GUID for > >> BGR 8:8:8. > >> > >> The UVC 1.5 spec[2] only defines GUIDs for YUY2, NV12, M420 and I420. > >> This seems to be an extension documented in the Microsoft Windows Media > >> Format SDK[3] - or at least the Media Format SDK was the only hit that > >> Google gave when searching for the GUID. This Media Format SDK defines > >> this GUID as corresponding to `MEDIASUBTYPE_RGB24`. Note though, the > >> XI100DUSB outputs BGR e.g. byte-reversed. I don't know if its the > >> capture device in error or Microsoft mean BGR when they say RGB. > > > > I believe Microsoft defines RGB as BGR. They do at least in BMP > > (https://en.wikipedia.org/wiki/BMP_file_format), probably because they > > consider the RGB pixel to be stored in little-endian format. > > Thanks, that's helpful. > > > Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > > > I'll apply the patch to my tree and submit it for v3.20. > > Great > > > Could you please send me the output of 'lsusb -v' for your device, if > > possible running as root ? > > lsusb output attached. Thank you. I've updated the supported devices list. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
