search

GT-Robotics / odroid_vlink

network video streaming module for UAV, UGV, etc..
8 stars 1 forks source link

Cannot use dual webcam in simultaneously #6

Open galch opened 9 years ago

galch commented 9 years ago

Because of bandwidth limit in usb hosts, it cannot use dual camera

but, some configuration for solve this problem ref link

sudo rmmod uvcvideo sudo insmod ./aauvcvideo.ko quirks=128

but it just for YUV raw-format. not work in MJPEG output webcam this reason is that USB-bandwidth is fixed and data size of YUV raw-format is also fixed. but in MJPEG-compression it allocate huge space in residual USB-bandwidth. so we cannot use MJPEG webcam with high resolution (320x240 & 160x120 is possible... we need more..)

it needs to recompiling uvcvideo driver to restrict bandwidth of MJPEG webcam

TKoma commented 9 years ago

https://www.ptgrey.com/tan/10699