Grabbing video image from all Server displays/monitors via FFMPEG driver

The Video capture device object for grabbing video image from all Server displays/monitors via FFMPEG driver can be added either by manually creating the Video capture device or using the Camera discovery tool. The latter way is preferable.

Creating the Video capture device object

Add the Video capture device object for grabbing video image from all Server displays/monitors via FFMPEG driver as follows:

1. Start the Camera discovery tool.
   
   

2. Enter any IP address in the IP address field (1). The driver automatically sets the proper address for this model.

   Note.

   When adding this device type by manually creating the Video capture device object,

   set the following IP address: gdigrab://desktop

3. From the Brand drop-down list, select FFMPEG (2).
4. From the Model drop-down list, select Desktop capturer (3).
5. From the Firmware drop-down list, select auto (4).
6. Click Add (5). The device is added to the list.
7. Set the checkbox next to the added device and the Video channel (6).
8. Click Apply (7).
9. Click Exit (8).

Additional options for the FFMPEG device

The address with additional options for the ffmpeg utility can be specified in the IP address field on the Video capture device object settings panel. In this case, the address has the following format:

gdigrab://desktop: [-additionalOptions]

For example, a specific area can be set with several other options. Below is the list of options supported by the ffmpeg library for the gdigrab mode:

• -draw_mouse <int> draw the cursor (0 or 1) (1 by default);
• -show_region <int> draw borders across the capture line (0 or 1) (0 by default);
• -framerate <video_rate> set frame rate ("ntsc” by default);
• -video_size <image_size> set frame size;
• -offset_x <int> indent along the x axis of the capture area (from INT_MIN to INT_MAX) (0 by default);
• -offset_y <int> indent along the y axis of the capture area (from INT_MIN to INT_MAX) (0 by default);

Example of "additionalOptions” property:

-draw_mouse 1 -show_region 1 -framerate 25 -video_size 640x480 -offset_x 10 -offset_y 10