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V4L/DVB (5094): Pvrusb2: Introduce fake audio input selection 

This should allow mplayer pvr:// to start. The trick is that no matter
what actual input we use under this "fake" one, it will be able to do
stereo :-)

Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Pantelis Koukousoulas 2007-01-20 01:57:36 -03:00 committed by Mauro Carvalho Chehab
parent 606cf9caeb
commit 848ed3ca2a
1 changed files with 27 additions and 1 deletions
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28
drivers/media/video/pvrusb2/pvrusb2-v4l2.c
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@ -321,13 +321,39 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
case VIDIOC_ENUMAUDIO:
{
/* pkt: FIXME: We are returning one "fake" input here
which could very well be called "whatever_we_like".
This is for apps that want to see an audio input
just to feel comfortable, as well as to test if
it can do stereo or sth. There is actually no guarantee
that the actual audio input cannot change behind the app's
back, but most applications should not mind that either.
Hopefully, mplayer people will work with us on this (this
whole mess is to support mplayer pvr://), or Hans will come
up with a more standard way to say "we have inputs but we
don 't want you to change them independent of video" which
will sort this mess.
*/
struct v4l2_audio *vin = arg;
ret = -EINVAL;
if (vin->index > 0) break;
strncpy(vin->name, "PVRUSB2 Audio",14);
vin->capability = V4L2_AUDCAP_STEREO;
ret = 0;
break;
break;
}
case VIDIOC_G_AUDIO:
{
ret = -EINVAL;
/* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */
struct v4l2_audio *vin = arg;
memset(vin,0,sizeof(*vin));
vin->index = 0;
strncpy(vin->name, "PVRUSB2 Audio",14);
vin->capability = V4L2_AUDCAP_STEREO;
ret = 0;
break;
}