Use hardware acceleration

If a supported Intel GPU is available on the system, hardware acceleration for video encoding can be enabled by checking this box. If the box is unchecked, video encoding will be done on the CPU.

Codec

ibaCapture supports H.264 encoding as well as H.265 (or HEVC). Select the encoding type in the dropdown menu:

    • H.264

    • HEVC (H.265) When using a hardware encoder, make sure that the device supports this codec. Software-encoding is only possible on 64 bit systems.

Bitrate control

    • VBR (Variable Bit Rate) With VBR, the bitrate is always set according to the complexity of the taken image. That means, that a high bandwidth is required for a high activity and a low bandwidth for low activity in the video.

    • CBR (Constant Bit Rate) If you select CBR, you can configure a fixed maximum bitrate and hence make sure that the demand for the bandwidth remains calculable. Thus, the maximum value will not be exceeded, no matter how much activity is in the video.

Bitrate

If VBR is configured for the bitrate control, you can configure here the average bitrate. If CBR is selected, you can configure here the maximum permitted bitrate.

GOP size

GOP (Group Of Pictures) defines the number of pictures after which a full picture, a so called keyframe will be stored. The pictures between the keyframes are derived from the previous keyframe, in between, only changes of the pictures are stored. With a high GOP, possible encoding errors exist longer, with a low GOP, the bitrate and hence the memory requirements of the video stream tend to grow. The default setting 30 is suitable for most of the cameras.

Frame rate

A frame rate of 25 fps usually works for the human eye to get the impression of smooth movement.

Resolution

Image resolution can be set here. The images from the iconic outputs will be scaled to the set resolution. The aspect ratio will not be preserved.

Performance slider

The performance can be adjusted with the slider to prioritize either compression or speed. Please note that a high speed causes low compression and produces higher-bandwidth data. High compression requires high computing capacity and lowers the speed.