Encoder, encoder CPB and license settings

Tap the encoder icon to display the Encoder page. Use this page to define the settings that you want to use to prepare the video for output. Separate settings are provided for HEVC and H.264.

When you have selected the appropriate settings, tap the Back icon to return to the main page or tap the Next icon to change the encoder coded picture buffer (CPB) setting.

Table 1. HEVC and H.264 encoder settings
Setting Description
Video Format

Defines the resolution of the video file. Select the format that you want to use from those available (720p, 1080i, 1080p, 1080p (3G), and 2160p), and then tap Done.

Note that 2160p is not available for H.264.
Chroma

Chroma subsampling is a method for compressing color data in a video signal or file. It reduces the amount of color information in the signal to allow more luminance data instead and allows you to maintain picture clarity while effectively reducing the file size by up to 50%. Select the ratio that you want to use, and tap Done.

The camera back transmitter supports 4.2.2 and 4.2.0.
Bit Depth Choose whether to use 8-bit or 10-bit color.
Video Delay Mode

Defines whether to use ‘Normal’, ‘Low’ or ‘Ultra Low’ video encoder latency. Select the delay mode that you want to use, and then tap Done.

Note that you must ensure that you set the correct Video Latency setting on the receiver, which depends on the Video Delay Mode that you select here. If latency is set incorrectly on the receiver, the image may freeze or judder.
Quadlink Mode

Quadlink Mode bonds four 3G SDI signals together equaling 12G, which helps in streaming 4K. Two modes exist for splitting the pixels, where the signal is divided in four4 equal parts and transported on four different coaxial cables.

‘UHD - 2SI’: each quad is a copy of the same image at ¼ resolution.

‘UHD – Square’: each link contains one quarter (1920 x 1080) of the original image.