MV Trigger Source DirectShow Filter
The MV Trigger Source filter is used to facilitate selective
image processing when using streaming video sources
like firewire cameras that don't provide
hardware trigger functionality. If the filter is
triggered, the next available frame is passed
through. The trigger mode can be disabled. If the trigger mode
is disabled, the filter passes through all input frames.
| File: |
MVTriggerSource.ax |
| CLSID: |
CLSID_MVTrigger |
Supported Interfaces
IMVTriggerFilter
IMVTrigger
IMVFilterData
IMVAbout
IMVFilterInfo
Supported COM Events
The filter supports following events through the IMVFilterEvents interface.
Look at the filter events page
for more information.
| Event
|
Value
|
Description
|
| MV_ALGORITHM_START_EVENT |
0
|
A filter starts processing a video frame or sample. |
| MV_ALGORITHM_END_EVENT |
1
|
A filter finishes processing a video frame or sample. |
Supported I/O Pins
| I/O Pin
|
Corresponding method
|
Discription
|
Trigger
[boolean] |
IMVTrigger::Trigger |
Triggers the MV Trigger Source Filter |
Stream
[boolean] |
IMVTrigger::put_UseTrigger |
Activates or deactivates the trigger
functionality. |
MV Trigger Source Property Page
Implements the IMVTrigger
configuration interface.
| Trigger mode |
|
| Streaming |
|
| Trigger |
Triggers the MV Trigger Source Filter |
| Use original time stamps |
|
| Adjust time stamps |
|
|