MV I/O To String DirectShow Filter

The MV I/O To String filter converts the input value into a string and sends it through the output pin. Use this filter to convert an I/O value into a user defind string to draw it with the MV Text Overlay filter onto the video stream.

 

File: MVIOToString.ax
CLSID: CLSID_MVIOToString

 

Supported Interfaces

IMVIOToString

IMVAbout

 

Supported COM Events

The filter supports following events through the IMVFilterEvents interface. Look at the filter events page for more information.

Event
MV_IO_DATA_RECEIVE_EVENT

 

MV I/O To String Property Page

Uses the IMVIOToString interface to configure the filter.

MV I/O To String Property Page

Prefix Prefix string.
Postfix Postfix string.
True Replacement for TRUE values.
False Replacement for FALSE values.
Uppercase Use uppercase letters.
Show leading zeros Show leading zeros.
Leading zeros Count of leading zeros.
Internal Decimal Places Count of internal decimal places.
Floating Point Mode Auto: Depending of the value and the Internal Decimal Playes value the filter use the decimal or exponent version.
Decimal: Use decimal version
Exponent: Use exponent version

 

Sample Filter Graph

The MV I/O Filter converts the first result from the MV Gauge Filter into a text string. The MV Text Overlay filter draws this string onto the live video stream.