Video Encoder Settings
The following sections list the Video Encoder controls and settings:
Video Encoder Setting | Default | Description/Values | ||
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Input | Select the Video Input port for the encoder: | |||
| BNC-1 |
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| DVI |
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Input Format | n/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. Note 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 | ||||
Type | Automatic | Select the Video Input type for the encoder: Note 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.
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FIR Filter | Disabled | Check 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:
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Preferred Resolution (DVI only) | 1920x1200p60 | Sets 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.
Note Disabling HDCP will allow the Makito X to inter-work with Apple products such as the MacBook and iPad. |
Video Encoder Setting | Default | Description/Values |
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Bitrate | 6000 kbps | Enter the video bitrate for the encoder: 32 to 25,000 kbps |
Resolution | Automatic | Select the stream output resolution (i.e., the number of lines per frame and pixels per line to be encoded):
Note For supported video encoding resolutions, see Video Encoding. |
Cropping | Disabled | 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. Note 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 Rate | Automatic | Select the coded picture frame rate per second:
Note The frame rate cannot exceed the input frame rate. |
Framing | IP | Select the video compression mode for the encoded video:
Note 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. Tip When B frames are used, the GOP may be rounded up to make the sequence end with a P frame. |
GOP Size | 120 | Enter the Group of Pictures size for the encoded video.1..1000 |
Video Encoder Setting | Default | Description/Values |
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Aspect Ratio | Automatic | Specifies the aspect ratio of the video source and signals it into the MPEG stream:
Note WSS is only supported with analog PAL video; AFD is only supported with SDSDI video. |
Closed Caption | Enabled | (Optional) Check this checkbox to enable Closed Captioning on the output Stream. Note For more information, see Closed Captioning. |
TimeCode Source | None | 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:
Note See TimeCode Source for additional information. |
Entropy Coding | CAVLC | (H.264 only) Select the compression scheme:
Note The H.264 decoder must be Main Profile compliant or higher to decode a CABAC video stream. Tip CABAC provides better visual quality because it is more efficient. |
Partitioning | Disabled | (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. Note 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. Tip 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 Refresh | Disabled | (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. Tip Intra-refresh requires that the decoder and streams be started first. |
Intra Refresh Rate | 60 | (H.264 only) Specifies the number of frames over which the entire picture is refreshed. 1..5000 Note If the refresh rate is set too low, a leftto-right wave-like artifact may result. |
Partial Image Skip | Disabled | Allows the encoder to skip part of the image in order to respect the bitrate limit. |