I'm trying to capture off the analog tuner (input 0) and that's already set to the correct standard (NTSC-M). It looks like I can tune with ivtv-ctl, as I get "Signal Detected" on channels I receive ... but dumping to a file or mplayer still results in nothing (mplayer caching never progresses).
-Robert p.s. is top-posting the preferred response method on this list? I know it's frowned-upon elsewhere. On Wed, Jun 27, 2012 at 12:07 PM, Peter Schneider < [email protected]> wrote: > Here are some instructions that Andy helped me with some time back that I > think will be of help. I think I will actually put this to my blog in the > near future too. Hope this helps as basically you will want to identify > where your tuner really is and make sure it is using the right standard. > > You may have to write some udev rules to help out after you have it > figured out. Recently I found my dev folders wandering a little. To help > you there you can go to the following link for a blog entry that I did on > the matter. > http://petersopus.wordpress.com/2012/06/18/cure-for-the-drifting-dev-folder/ > > Thanks, > Peter > > Please install v4l2-ctl (probably in a v4l2-utils package) and mplayer. > > > Kill the mythbackend, if it is running. > > > Then run v4l2-ctl --list-devices, to see what card corresponds to which > > devices nodes. For example: > > > $ v4l2-ctl --list-devices > > Hauppauge HVR-1600 (PCI:0000:03:00.0): > > /dev/video0 > > /dev/video24 > > /dev/video32 > > /dev/vbi0 > > > Hauppauge WinTV PVR-150 (PCI:0000:03:01.0): > > /dev/video2 > > /dev/video26 > > /dev/video34 > > /dev/radio2 > > /dev/vbi2 > > > Hauppauge HVR-1600 (PCI:0000:03:02.0): > > /dev/video1 > > /dev/video25 > > /dev/video33 > > /dev/radio1 > > /dev/vbi1 > > > On a device from which you wish to capture S-Video, set the proper input > > and analog TV standard using v4l2-ctl: > > > $ v4l2-ctl -d /dev/video0 --list-inputs > > ioctl: VIDIOC_ENUMINPUT > > Input : 0 > > Name : Tuner 1 > > Type : 0x00000001 > > Audioset : 0x00000007 > > Tuner : 0x00000000 > > Standard : 0x0000000000001000 (NTSC-M) > > Status : 0x00000000 (ok) > > Capabilities: 0x00000004 (SD presets) > > > Input : 1 > > Name : S-Video 1 > > Type : 0x00000002 > > Audioset : 0x00000007 > > Tuner : 0x00000000 > > Standard : 0x0000000000FFFFFF (PAL-B/B1/G/H/I/D/D1/K/M/N/Nc/60 > NTSC-M/M-JP/443/M-KR SECAM-B/D/G/H/K/K1/L/Lc) > > Status : 0x00000000 (ok) > > Capabilities: 0x00000004 (SD presets) > > > Input : 2 > > Name : Composite 1 > > Type : 0x00000002 > > Audioset : 0x00000007 > > Tuner : 0x00000000 > > Standard : 0x0000000000FFFFFF (PAL-B/B1/G/H/I/D/D1/K/M/N/Nc/60 > NTSC-M/M-JP/443/M-KR SECAM-B/D/G/H/K/K1/L/Lc) > > Status : 0x00000000 (ok) > > Capabilities: 0x00000004 (SD presets) > > [...] > > > $ v4l2-ctl -d /dev/video0 --set-input=1 > > Video input set to 1 (S-Video 1: ok) > > > $ v4l2-ctl -d /dev/video0 --list-standards > > ioctl: VIDIOC_ENUMSTD > > Index : 0 > > ID : 0x000000000000B000 > > Name : NTSC > > Frame period: 1001/30000 > > Frame lines : 525 > > > Index : 1 > > ID : 0x0000000000001000 > > Name : NTSC-M > > Frame period: 1001/30000 > > Frame lines : 525 > > [...] > > > $ v4l2-ctl -d /dev/video0 --set-standard=1 > > Standard set to 00001000 > > > > Turn on your S-Video source, and then just capture an MPEG live with > mplayer: > > > $ mplayer /dev/video0 -cache 8192 > > > or capture a file for later playback > > > $ cat /dev/video0 > foo.mpg > > ^C > > $ mplayer foo.mpg > > > > > Here is what I see on the two problematic analog tuners. > > > Looks like an untuned tuner input driving the encoder, not S-Video. An > > S-Video input that is connected but has no signal is usually a solid > > grey or black screen. > > > > One last step is to verify that you do in fact have a video signal with > > a known good devices (such as a TV). If you have RF analog or RF > > digital reception problems, you may want to review this checklist as > > well: > > > http://ivtvdriver.org/index.php/Howto:Improve_signal_quality > > > Regards, > > Andy > > > > > > On 2012-06-27, at 10:53 AM, Robert Rust wrote: > > I have been trying in vain for weeks trying to get an HVR-1600 tuner card > to work in a new system I built (Intel mobo, Core i5, 8G RAM). It worked > fine in my old one but I'm not getting anything when I try to capture, > either with MythTV or directly cat'ing /dev/video > filename.mpg. I've > tried installing the same version of mythbuntu (10.04 w/2.6.32 kernel) that > I have on my working system but the motherboard is too new to get network > support in that kernel (so installing all the various dependencies for > ivtv-utils appears to be incredibly difficult). > Any suggestions? I am not seeing anything in kernel log right now > suggesting a direction to go. > > -Robert > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users >
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