The MontiVision Ticker Overlay filter overlays user specific text onto the output video stream and scolls it horizontally.
| File: | tickeroverlay.ax |
| CLSID: | CLSID_MVTickerOverlay |
Interface
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. |
| MV_TICKER_TEXT_COMPLETE |
32 |
The ticker text was scolled completly. |
Supported I/O Pins
| I/O Pin | Corresponding method | Discription |
|
Text In |
IMVTickerOverlay::put_Text | Sets the text that is to be drawn onto the video stream. |
Attention:
I/O Pins are dominant, that means that they have a
higher priority than the corresponding method of the filters
interface!
MV Ticker Overlay Property Page
Uses the IMVTickerOverlay configuration interface.
| Enable Overlay | Enables or disables the text overlay. |
| Date/Time | The current date and time is overlaid onto the video stream. |
| Text | The user specified text is overlaid onto the video stream. |
| Font properties | Size, typeface and properties of the font that is used to draw the text. |
| Colours | Text, shadow and background colours. |
| Margins | Horizontal and vertical margins for the drawn text. |
| Relative Position | Places the text within the selected corner. |
| Absolute Position | Places the text exactly at the defined position relative to the lower left corner of the video stream. |
| Ticker Width | The width of the ticker in pixel. This includes the ticker text and both static texts. |
| Speed | Defines how fast the ticker scolls in pixel per second. |
| Static Texts | User specific texts displayed left and right of the ticker text. |
| I/O Pin Separator | The separator used to split up the text received on the I/O Text Input Pin into substrings. |
| Overlays | You can add/remove an overlay and select the one you want to alter. |