| Value | Meaning |
|---|---|
| INVALID0 | invalid probe type |
| IDLE1 | probe idle pads and block while the callback is called |
| BLOCK2 | probe and block pads |
| BUFFER16 | probe buffers |
| BUFFER_LIST32 | probe buffer lists |
| EVENT_DOWNSTREAM64 | probe downstream events |
| EVENT_UPSTREAM128 | probe upstream events |
| EVENT_FLUSH256 | probe flush events. This probe has to be explicitly enabled and is not included in the @GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM or @GST_PAD_PROBE_TYPE_EVENT_UPSTREAM probe types. |
| QUERY_DOWNSTREAM512 | probe downstream queries |
| QUERY_UPSTREAM1024 | probe upstream queries |
| PUSH4096 | probe push |
| PULL8192 | probe pull |
| BLOCKING3 | probe and block at the next opportunity, at data flow or when idle |
| DATA_DOWNSTREAM112 | probe downstream data (buffers, buffer lists, and events) |
| DATA_UPSTREAM128 | probe upstream data (events) |
| DATA_BOTH240 | probe upstream and downstream data (buffers, buffer lists, and events) |
| BLOCK_DOWNSTREAM114 | probe and block downstream data (buffers, buffer lists, and events) |
| BLOCK_UPSTREAM130 | probe and block upstream data (events) |
| EVENT_BOTH192 | probe upstream and downstream events |
| QUERY_BOTH1536 | probe upstream and downstream queries |
| ALL_BOTH1776 | probe upstream events and queries and downstream buffers, buffer lists, events and queries |
| SCHEDULING12288 | probe push and pull |
The different probing types that can occur. When either one of GST_PAD_PROBE_TYPE_IDLE or GST_PAD_PROBE_TYPE_BLOCK is used, the probe will be a blocking probe.