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Video Encoder Settings

The following sections list the Video Encoder controls and settings:

Video Encoder SettingDefaultDescription/Values
Select the Video Input port for the encoder:
  • SDI
  • BNC-1
  • BNC-2
  • BNC-3 (only available on Makito XR)
  • BNC-4 (only available on Makito XR)
  • DVI
  • DVI (read-only)
Input Formatn/a

This is the input signal auto-detected from the video source. It includes the number of pixels per line, whether the video is interlaced or progressively scanned (indicated by i or p), and the number of frames per second.


If the signal cannot be detected (or is outside the supported range), the Input Format will be Unknown.

Copy Protected Content DVI only

n/a(Read-only) Indicates whether or not the video source connected to the Makito X DVI is protecting/encrypting its output. If Yes, the stream will not be encoded.
Input Settings

Select the Video Input type for the encoder:


Automatic mode will cause increased delay during an input switch event. To reduce the re-lock delay, set the Input Type to SDI or Composite as appropriate.


  • Automatic
  • SDI
  • Composite


  • Automatic
  • Digital (HDMI/DVI)
  • Analog (Component/RGB)
FIR FilterDisabledCheck this checkbox to enable Input Image Filtering for the input interface. This parameter filters the video input and removes noise in order to optimize the compression of the image and to enhance the overall quality of the coded video stream.
Colorspace Control (DVI only)Automatic

(Optional) Select the color space to use while capturing the content. Matching the encoder input color space to the source enhances and optimizes color reproduction. This is useful with source formats such as graphics cards outputting HDTV resolutions. Select either:

  • Automatic: The encoder determines the appropriate color space to use.
  • YCbCr: Forces the encoder to use Y,Cb,Cr
  • RGB (Full Range): Forces the encoder to use RGB Full Range [0..255]
  • RGB (Limited Range): Forces the encoder to use RGB Limited Range [16..235]
Preferred Resolution (DVI only)1920x1200p60Sets the DVI-D preferred input resolution so that connected devices do not scale their output resolutions to undesired resolutions. For more information, see edid.
HDCP (DVI only)Enabled

Check this checkbox to enable HDCP (High-bandwidth Digital Content Protection) for the DVI interface.

  • When enabled, HDCP sources will detect the Makito X as a HDCP sink. The source will decide whether or not the content it sends to the Makito X needs to be protected/encrypted. The Makito X will not encode encrypted/protected content.
  • When disabled, the authentication phase where keys are exchanged will fail and the content source will detect the Makito X as a device that does not support HDCP. At this point, the source will not send any protected content to the Makito X but can still send unprotected content.


Disabling HDCP will allow the Makito X to inter-work with Apple products such as the MacBook and iPad.

Basic Parameters
Video Encoder SettingDefaultDescription/Values
Bitrate6000 kbpsEnter the video bitrate for the encoder: 32 to 25,000 kbps

Select the stream output resolution (i.e., the number of lines per frame and pixels per line to be encoded):

  • Automatic: Encodes at the same resolution as the incoming video.
  • Manually select the coded picture resolution from the list of available options (includes down-scaled resolutions). The options depend on the Input Format detected.


For supported video encoding resolutions, see Video Encoding.


This parameter crops the input and encodes to a rectangle within the input image while discarding the rest of the input image.

By default, input is scaled to the output resolution. When Cropping is enabled, the output resolution is the portion of the input that is encoded from the center. This may be done instead of downscaling.


Cropping is disabled if Resolution is Automatic, 960, or 1440, or if Resolution (i.e., output resolution) is set to equal or larger than the input resolution.

Frame RateAutomatic

Select the coded picture frame rate per second:

  • Automatic: Encodes at the same frame rate as the input
  • 60..1


The frame rate cannot exceed the input frame rate.


Select the video compression mode for the encoded video:

  • I: I frames only (lowest delay; lowest quality)
  • IP: I and P frames only
  • IBP: I, B and P frames (H.264 only)
  • IBBP: I, BB (two B frames in sequence) and P frames (highest delay; highest quality) (H.264 only)


B frames require a Main Profile decoder. B frames provide more quality as the encoding is more efficient; thus more details can be rendered in the same bandwidth/bitrate.


When B frames are used, the GOP may be rounded up to make the sequence end with a P frame.

GOP Size120Enter the Group of Pictures size for the encoded video.1..1000
Advanced Parameters
Video Encoder SettingDefaultDescription/Values
Aspect RatioAutomatic

Specifies the aspect ratio of the video source and signals it into the MPEG stream:

  • Automatic: Aspect ratio is derived from the incoming video source resolution.
  • Manually force aspect ratio to either: 3:2, 4:3, 5:3, 5:4, 16:9, 16:10, or 17:9.
  • WSS/AFD: Aspect ratio is extracted from the incoming video source based on WSS (Wide Screen Signaling) or AFD (Active Format Description) if detected.


WSS is only supported with analog PAL video; AFD is only supported with SDSDI video.

Closed CaptionEnabled

(Optional) Check this checkbox to enable Closed Captioning on the output Stream.


For more information, see Closed Captioning.

TimeCode SourceNone

Timecodes are used to mark video frames, for editing purposes or for multi-channel synchronization. This field either disables timecoding, or selects the source to “timecode” the encoded video frame. The following selections are available:

  • None: No time code will be inserted in the video stream (saves bandwidth if not required).
  • Video (SDI only): The timecode will be extracted from the incoming video signal.
  • System: If no timecode is included in the video feed, the encoded timecode is based on the encoder’s system clock. In this case, it is is recommended to enable NTP (see Configuring Network Settings).


See TimeCode Source for additional information.

Entropy CodingCAVLC

(H.264 only) Select the compression scheme:

  • CAVLC: Context-adaptive Variable-length Coding is a lower-complexity alternative to CABAC. CAVLC produces lower quality, but is easier to decode.
  • CABAC: Context-adaptive Binary Arithmetic Coding is an algorithm to losslessly compress syntax elements in the video stream. CABAC compresses data more efficiently than CAVLC and should produce better quality, but requires considerably more processing to decode.


The H.264 decoder must be Main Profile compliant or higher to decode a CABAC video stream.


CABAC provides better visual quality because it is more efficient.


(H.264 only) Check this checkbox to enable Intra-Picture Sub-Partitioning.

Intra-Partitioning is a setting that allows the use of a smaller macroblock partition during the video macroblock encoding process.


Intra-Partitioning requires that the H.264 decoder be High Profile compliant.

Intra-Partitioning provides better visual quality because it gives the video encoder better coding tools.


Noisy Matrix completion is enabled automatically when Partitioning is enabled and video bitrate is under 800 Kbps. Noisy Matrix completion enhances video image “noise” reduction to improve video quality at lower bitrates and make blocky artifacts less visible.

Intra RefreshDisabled

(H.264 only) Check this checkbox to enable Intra-refresh video encoding support.

Intra-refresh is a video encoding mode of operation in which no distinct IDR frame is sent in the video elementary stream. Instead, the macro-blocks that make up the IDR frame are sent gradually within a certain time so that the entire video reference frame is rebuilt (at the decoder) within the number of frames specified by the Intra Refresh Rate parameter. Intra-refresh minimizes latency, smooths the video bitrate, and minimizes GOP pulsing artifacts.


Intra-refresh requires that the decoder and streams be started first.

Intra Refresh Rate60

(H.264 only) Specifies the number of frames over which the entire picture is refreshed. 1..5000


If the refresh rate is set too low, a leftto-right wave-like artifact may result.

Partial Image SkipDisabledAllows the encoder to skip part of the image in order to respect the bitrate limit.

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