MPV_EVENT_QUEUE_OVERFLOW constant
int
const MPV_EVENT_QUEUE_OVERFLOW
Happens if the internal per-mpv_handle ringbuffer overflows, and at least 1 event had to be dropped. This can happen if the client doesn't read the event queue quickly enough with mpv_wait_event(), or if the client makes a very large number of asynchronous calls at once.
Event delivery will continue normally once this event was returned (this forces the client to empty the queue completely).
Implementation
static const int MPV_EVENT_QUEUE_OVERFLOW = 24;