situation
lsmod
Module Size Used by
v4l_compat 7920 0 (autoclean) (unused)
bttv2 84864 0
videodevX 14384 2 [v4l_compat bttv2]
input 3392 0 [mousedev usbmouse]
usb-uhci 21056 0 (unused)
tuner 4608 0 (autoclean) (unused)
tvaudio 8432 0 (autoclean) (unused)
i2c-algo-bit 7200 0 [bttv2]
i2c-core 13264 0 [bttv2 tuner tvaudio i2c-algo-bit]
realproducer would report (thanks to v4lcompat i guess):
Plugin 4: V4L1 Video capture plug-in (/dev/video0) (vendor=RealNetworks,
Inc.)
Port 4:0 -- Tuner
Port 4:1 -- Composite 0
Port 4:2 -- Svideo
but trying to run it, it would instead report (nothing using the device)
VIDIOCMCAPTURE: Device or resource busy
ERROR: Encoding failed
it would obviously work after a rmmod bttv2, rmmod videodevX, modprobe bttv,
but
I think this "Device busy" should not happen, as per the backward
compatibility v4l2 has been projected.
faulty app or faulty driver (or faulty bttv2 (but i guess not)) ?
And just a question more, shouldn-t v4l2 support multiple opens ? or is it
just something which requires
the application to be v4l2-aware ?
Why am i asking this ? just because i need to capture and stream video (with
this command-line only realproducer thing),
while seeing it while i am capturing it. I know this is not the most
appropriate list but has anyone any suggestion ?
thanks all
Michele Slocovich
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