RE: saa7134 + oss in general | |
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> -----Original Message----- > From: video4linux-list-bounces@xxxxxxxxxx > [mailto:video4linux-list-bounces@xxxxxxxxxx] On Behalf Of > hermann pitton > > Michael Jackson schrieb: > > Hi, I'm back. :) Having intermittent issues with the ASUS > TV-FM and OSS. > > [...] > > > > This is more than a little confusing. > > > > To add to the fun, I seem to not be able to get this to work at all > > just using v4lctl (i.e without firing up xawtv, for > headless use) - I > > tred to replicate the steps I took in xawTV with v4lctl, like so: > > > > modprobe saa7134 oss=1 > > v4lctl setnorm ntsc > > v4lctl setfreqtab us-cable > > v4lctl setchannel 12 > > v4lctl volume mute off > > v4lctl volume 100 > > > > With a .xawtv I set only the channel with v4lctl. Interesting. I'm messings with that, as it seems very trivial. I'm building a /etc/X11/xawtvrc Here's what I'm using: [global] freqtab = us-cable [defaults] input = television norm = ntsc audio = stereo I did a v4lctl setchannel and then did a v4lctl list - it's setting the norm to PAL-DK, which is interesting to say the least. It's not setting audio to stereo either. I fired up xawtv, and saw the same - However, it IS seting the freqtable to us-cable, so it's at least getting that right. > > but then I can't pull anything off of the video device... I > get this > > when I try to use mp1e: > > > > mp1e:v4l.c:124: Failed to VIDIOCSYNC (5, Input/output error) > > Apparently doesn't get the buffers it wants, don't have the > source. What happens with other apps like streamer, ffmpeg, > mencoder, transcode, nvrec ...? > They all can unmute the device on the saa7134 chips. I have mencoder installed. It will do this on an infinite loop: v4l2: ioctl dequeue buffer failed: Input/output error, idx = 0 and then have to be killed off with extreme prejudice. Wait, never mind, I'm an idiot. I forgot the v4lctl stuff. If I do that, it works, without the audio - I can't figure out how to specify an alternate input source w/ mencoder. Anyways, I tried it again without the v4lctl stuff, just trying to specify everything on the mencoder command line: /opt/mplayer/bin/mencoder -tv driver=v4l2:device=/dev/video0:adevice=/dev/dsp0:amode=1:normid=1:chanlist=u s-cable:width=640:height=480 tv://34 -ovc lavc -lavcopts vcodec=wmv2:vbitrate=3000 -endpos 1:00 -oac mp3lame -lameopts cbr:br=128 -vop pp=lb -o test.avi and I keep getting the same v4l2 error as above. Frustrating. Now I'm trying streamer. Not much luck there. Of course, I still have to set channel / norm / freqtable with v4lctl. streamer -t 0:30 -o test.avi -n ntsc -F stereo I can get video if I do v4lctl stuff first, but no audio. I probably need to explicitly set the input to line2 somehow. So I seem to be having some interesting results. Granted, I'm only experienced with mp1e and mencoder, and much less so with mencoder. > > > This will work fine once I fire up xawtv - Is there something I'm > > missing in v4lctl, or something else I need to get this working? > > > > Is mute still off with "v4lctl list" after you start mp1e, > does it work after using ttv, just scratching the surface ... Actually, mute turns on if I try to use streamer. Hrm. Let's check mp1e real fast - Nope, it stayed off there. I feel like there's a v4lctl gnome in my PC. > > In the vbi case Shaun is pulling data from /dev/vbi0, but > ntsc-cc doesn't decode them. What happened with the apps > using libzvbi? I tried zapping, but I'm having very little luck even getting TV video to work, let along captions. It seems highly unstable on my system. I've rebuilt a few times. > Welcome back, > Hermann Thanks so much, Michael -- Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list
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