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