Get the type, proportion, diff and timestamp in the qos event.
See Event.qos for more information about the different QoS values.
timestamp will be adjusted for any pad offsets of pads it was passing through.
| this |
The event to query |
| type |
A pointer to store the QoS type in |
| proportion |
A pointer to store the proportion in |
| diff |
A pointer to store the diff in |
| timestamp |
A pointer to store the timestamp in |