On 07/21/2014 06:33 AM, Len Ovens wrote:
That's just the usb stack detecting a device and reading the IDs. It
does not load a driver to handle it.
> Anything I can find suggests using a screen reader to get the live video
screen reader? that sounds odd. A Video-Loopback can work:
$ sudo modprobe vloopback
$ V4L_DEVNAME=/dev/video0 canon-capture
capture> v4l on
It looks like the canon camera is not supported by the v4l2 driver.
> (even for windows or mac)
The built-in webcam on a macbook (running Linux) works OOTB with
dvsource-v4l2-dv as does a cheap external USB webcam that I have (which
just shows up as /dev/video) both also produce audio-feeds.
For the real-thing(TM) I use firewire and camcorders or cameras.
> Sounds silly. Am I missing something? There is no audio that way.
Use a proper microphone, soundcard and `dvsource-jack` :)
Though in our case we ended up using the audio from the first camera:
Mics -> mixing-desk -> XLR -> camera 1 in.
That way the audio was always in sync (thanks for firewire
iso-synchroneous streams). dvsource-jack has options to calibrate
latency, and align the A/V but it may drift when streaming over long
periods of time if the soundcard is not word-clock synced with the camera.
PS. For testing dvsource-file comes in handy for testing.
Linux-audio-user mailing list