On Tuesday, 8 January 2019 17:16:21 EET Mauro Carvalho Chehab wrote: > Em Tue, 08 Jan 2019 16:54:41 +0200 Laurent Pinchart escreveu: > > On Tuesday, 8 January 2019 16:45:37 EET Mauro Carvalho Chehab wrote: > >> Em Sun, 6 Jan 2019 01:05:16 +0500 Mikhail Gavrilov escreveu: > >>> Hi folks! > >>> Every time when I start capture video from external capture card > >>> Avermedia Live Gamer ULTRA GC553 > >>> (https://www.avermedia.com/gaming/product/game_capture/live_gamer_ultr > >>> a_gc553) > >> > >> What's the driver used by this device? > >> > >> A quick browsing at the Avermedia page you pointed, it indicates that > >> this should be using the UVC driver: > >> > >> "The LGU takes full advantage of UVC technology, which > >> basically standardizes video drivers across Windows and Mac. > >> In other words, all you need to do is plug your LGU to > >> your PC or Mac and it’s ready to record and stream." > >> > >> So, I *suspect* that it uses the uvcvideo driver, but better to > >> double check. > > > > Given the full kernel log part of the original message, > > > > [ 5.184850] uvcvideo: Unknown video format > > 30313050-0000-0010-8000-00aa00389b71 > > Hmm... according with: > https://gix.github.io/media-types/ > > It seems to be this one ('P010'): > > {30313050-0000-0010-8000-00AA00389B71} (MFVideoFormat_P010)MFMS > {30313050-0000-0010-8000-00AA00389B71} (MEDIASUBTYPE_P010)DSMS > > YUV planar 4:2:0 10 bits. > > If so, there's a description here: > > https://docs.microsoft.com/en-us/windows/desktop/medfound/10-bit-and-16-bit > -yuv-video-formats That seems to match. The problem should then be easy to fix, but we need to add a corresponding fourcc to the V4L2 API, and matching documentation. Any volunteer ? :-) -- Regards, Laurent Pinchart
