https://github.com/mpromonet/libv4l2cpp/blob/fac4b836b556f6befc55663f2aa1d6577fbabb8a/inc/V4l2MmapDevice.h#L18 I try to understand why V4L2MMAP_NBBUFFER is 10? Why not 11? For example FFmpeg wants to use [256 buffers](https://trac.ffmpeg.org/ticket/10252#ticket).