Em 13-01-2011 10:13, Andrzej Pietrasiewicz escreveu: > Hello again, Mauro, > > On Thursday, January 13, 2011 9:46 AM Andrzej Pietrasiewicz wrote: > >> >> Hello Mauro, >> >> On Wednesday, January 12, 2011 9:24 PM Mauro Carvalho Chehab wrote: >>> >>> Em 12-01-2011 08:25, Marek Szyprowski escreveu: >>>> Hello Mauro, >>>> >>>> I've rebased our fimc and saa patches onto >>> http://linuxtv.org/git/mchehab/experimental.git >>>> vb2_test branch. >>>> >>>> The last 2 patches are for SAA7134 driver and are only to show that >>> videobuf2-dma-sg works >>>> correctly. >>> >>> On my first test with saa7134, it hanged. It seems that the code >>> reached a dead lock. >>> >>> On my test environment, I'm using a remote machine, without monitor. >>> My test is using >>> qv4l2 via a remote X server. Using a remote X server is an >> interesting >>> test, as it will likely loose some frames, increasing the probability >>> of races and dead locks. >>> >> >> We did a similar test using a remote machine and qv4l2 with X >> forwarding. >> Both userptr and mmap worked. Read does not work because it is not >> implemented, but there was no freeze anyway, just green screen in >> qv4l2. >> However, we set "Capture Image Formats" to "YUV - 4:2:2 packed, YUV", >> "TV Standard" to "PAL". I enclose a (lengthy) log for reference - it is >> a log of a short session when modules where loaded, qv4l2 started, >> userptr mode run for a while and then mmap mode run for a while. >> >> We did it on a 32-bit system. We are going to repeat the test on a 64- >> bit system, it just takes some time to set it up. Perhaps this is the >> difference. > > We did the test on a 64-bit system, both locally and with X forwarding to a > remote machine. It works in both cases. > Our TV card is "Avermedia AverTV Super 007" pure analog. Yours is a hybrid > analog/ISDB card. Does your card work with videobuf 1? Yes, it works (well, sort of - there's a problem a the tuner driver that I didn't fix yet, so, I'm receiving just static on it, but yet, it is a stream, and this works fine with videobuf1). > Perhaps you could do > such a test: please use code from the commit f73e66a8e91e4ebb "v4l: saa7134: > remove radio, vbi, mpeg, input, alsa, tvaudio, saa6752hs support" and see if > you TV card works with videobuf (not videobuf2)? Ok, I'll do that, or maybe I'll just replace by an analog-only board. Cheers, Mauro -- 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
