hi,
new rpi , trying speed it. using rpi version 3, latest camera, , raspian jessie distro. using raspivid camera working fine, however, having issues when using gstreamer.
have gstreamer installed , working fine using test sources. using v4l2src errors out because cannot find /dev/video0 driver. of examples see in fourms show using v4l2src device=/dev/video0
question: have create /dev/video device nodes? seems rather odd rpi jessie distro doesn't have these default.
question: linux standard video4linux2 preferred api use on rpi developing native video c/c++ applications?
thanks,
-andres
new rpi , trying speed it. using rpi version 3, latest camera, , raspian jessie distro. using raspivid camera working fine, however, having issues when using gstreamer.
have gstreamer installed , working fine using test sources. using v4l2src errors out because cannot find /dev/video0 driver. of examples see in fourms show using v4l2src device=/dev/video0
question: have create /dev/video device nodes? seems rather odd rpi jessie distro doesn't have these default.
question: linux standard video4linux2 preferred api use on rpi developing native video c/c++ applications?
thanks,
-andres
sudo modprobe bcm2835-v4l2
load v4l2 driver. isn't loaded default consumes gpu memory isn't necessary if use mmal api directly (that's raspivid , raspistill do).
mmal allows lot more flexibility v4l2 supports other components such resize, splitters, renderer , codecs. it's similar in concept openmax il written remove of nasty corners of il , shares large chunk of code on gpu.
load v4l2 driver. isn't loaded default consumes gpu memory isn't necessary if use mmal api directly (that's raspivid , raspistill do).
mmal allows lot more flexibility v4l2 supports other components such resize, splitters, renderer , codecs. it's similar in concept openmax il written remove of nasty corners of il , shares large chunk of code on gpu.
raspberrypi
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