V4L_TS_MONO2ABS   453 libavdevice/v4l2.c         if (s->ts_mode == V4L_TS_MONO2ABS ||
V4L_TS_MONO2ABS  1122 libavdevice/v4l2.c     { "mono2abs",     "force conversion from monotonic to absolute timestamps",   OFFSET(ts_mode),      AV_OPT_TYPE_CONST,  {.i64 = V4L_TS_MONO2ABS }, 0, 2, DEC, "timestamps" },