1V4L2_BUF_FLAG_MAPPED
2V4L2_BUF_FLAG_QUEUED
3V4L2_BUF_FLAG_DONE
4V4L2_BUF_FLAG_KEYFRAME
5V4L2_BUF_FLAG_PFRAME
6V4L2_BUF_FLAG_BFRAME
7V4L2_BUF_FLAG_TIMECODE
8V4L2_BUF_FLAG_INPUT
9V4L2_BUF_FLAG_PREPARED
10V4L2_BUF_FLAG_NO_CACHE_INVALIDATE
11V4L2_BUF_FLAG_NO_CACHE_CLEAN
12V4L2_BUF_FLAG_TIMESTAMP_MASK
13V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN
14V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC
15V4L2_BUF_FLAG_TIMESTAMP_COPY
16V4L2_BUF_FLAG_TSTAMP_SRC_MASK
17V4L2_BUF_FLAG_TSTAMP_SRC_EOF
18V4L2_BUF_FLAG_TSTAMP_SRC_SOE
19V4L2_BUF_FLAG_LAST
20