Just a few posts ago, a mister Murrel explained how to do that in
command line:
...
$ v4lctl setattr <attribute> <value>
"attribute" is allowed to be any attribute supported by the v4l[2]
interface. In the case of "VCR Hack" one simply executes:
$ v4lctl setattr "VCR Hack" 0
...
jonk
> -----Alkuper�inen viesti-----
> L�hett�j�: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]Puolesta Erik W Hanson
> L�hetetty: 6. tammikuuta 2002 14:42
> Vastaanottaja: [EMAIL PROTECTED]
> Aihe: [V4L] what's wrong with v4l2 and xv?
>
>
>
> If I start xawtv with -noxv I get all the controls, like chroma agc, comb
> filter, automute, luma decimation filter, and _audio mode_. But I cannot
> tune and get lots of segfaults with the following output:
> ioctl: VIDIOC_G_TUNER(cmd=0xc090561d): Invalid argument
> ioctl: VIDIOC_G_TUNER(cmd=0xc090561d): Invalid argument
> ioctl: VIDIOC_S_TUNER(cmd=0x4090561e): Invalid argument
> Segmentation fault
>
> If I use XV things work perfectly, no segfaults or any crazy messages. I
> would kind of enjoy those extra controls but do not get them using XV.
> Especially audio mode, I think I'm only getting mono without that control.
> Because without XV the audio mode shows mono until I switch it to stereo.
> I may have subverted that by adding audio = stereo to my defaults section
> of .xawtv, but I have no real way of knowing!
>
> So what's the damn problem with using XV, why no extra controls? And what
> problem am I having when NOT using XV?!?
>
> I am using an STB DesktopTV with FM tuner. It has 2 audio chips, a
> TEA6420 and a TDA9850T. When I specify the TEA6420 tvaudio.o option,
> mute increases the volume, so hitting mute or exiting xawtv or radio
> results in extremely loud volume, it does not shut off. When I specify
> TDA9850 mute has no effect, which is more desired then TEA6420's idea
> of mute. But still audio does not shut off when exiting tv or radio
> apps. WTF is going on here?
>
> TIA, -Erik
>
>
>
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