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 > -----Alkuperäinen viesti----- > Lähettäjä: video4linux-list-admin@xxxxxxxxxx > [mailto:video4linux-list-admin@xxxxxxxxxx]Puolesta Erik W Hanson > Lähetetty: 6. tammikuuta 2002 14:42 > Vastaanottaja: video4linux-list@xxxxxxxxxx > Aihe: 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 > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list
