> -----Alkuperäinen viesti----- > Lähettäjä: video4linux-list-admin@xxxxxxxxxx > [mailto:video4linux-list-admin@xxxxxxxxxx]Puolesta Richard Jones > Lähetetty: Wednesday, May 07, 2003 1:36 PM > Vastaanottaja: video4linux-list@xxxxxxxxxx > Kopio: joni.kahara@xxxxxxx > Aihe: Re: VS: saa7134 field order fix is not a fix. > > > On Tue, 2003-05-06 at 23:22, Joni Kähärä wrote: > > > > Richard Jones wrote: > > > > > > Possibly but what I'm doing is pretty straight forward , I pass > > > the frame capture from the tv card and sending it straight to > > > the tv-out on the matrox g400. It is possible that the g400 has got > > > the field order flipped itself. > > > > > > > > > Are you using DirectFB? Just wondering. > > > > > > Yes I am. Since sending that email I've discovered the problem was > indeed at my end. It appears that a directfb call SetFieldParity() > has the semantics (at least in my setup) that SetFieldParity(0) chooses > bottom field first and SetFieldParity(1) chooses top field first, a > semantics I was not expecting. Given that this behaviour is contrary to > the documentation it is possibly a problem with my particular setup. > > Give your question have you had field order issues with directfb also? > > So in summary Tom's change for the DMA status check is correct, the > field order issues seem related to my use of directfb. > I haven't had problems, yet 8] I started actual coding a few days ago and I ain't yet gone that far [so that there would be any problems.] The app will be using DirectFB (and Matrox G{4,5}50 tv-out) & v4l2 (among other things). We'll see.. Jonk
