V4L_TS_ABS        445 libavdevice/v4l2.c     if (s->ts_mode == V4L_TS_ABS &&
V4L_TS_ABS       1107 libavdevice/v4l2.c     { "abs",          "use absolute timestamps (wall clock)",                     OFFSET(ts_mode),      AV_OPT_TYPE_CONST,  {.i64 = V4L_TS_ABS      }, 0, 2, DEC, "timestamps" },