s
10/20
STV674/502V-R01
DirectCap
5 DirectCap
To demonstrate webcam mode, an application called DirectCap is provided by ST with the
STV0674 Flash Board evaluation kit. The application is supplied with its own executable installer.
Just double click on the ‘DirectCap.exe’ file and follow the onscreen instructions.
5.1
Video / Audio device
To start streaming video, select ‘NMS Video Camera’ from the pull down menu under
Video Device
then press the
Start
button. To stop, press the
Stop
button.
To start streaming audio, select ‘USB Audio Device’ from the pull down menu under
Audio Device
then press the
Start
button. To stop, press the
Stop
button. Note that on WinXP, the OS displays
the device name from a string in the firmware and so it appears as ‘ST’ instead of ‘USB Audio
Device’. This may be customised for OEM products.
Video and audio may be streamed simultaneously, but the ‘preview’ shows a short time lag for
audio. When streaming to file, this time lag does not occur.
To capture a still image from the video preview, press the
BMP
button. The picture is taken when
the button is pressed and then a dialog prompts for the user to select a filename to save the image.
Figure 3: The DirectCap window
