Vitec Multimedia MGW Diamond - Page 34

MGW Diamond Multi-Channel HEVC and H.264 Portable Encoder
User Manual, Version 1.6 34
• QP Base - The initial quantization (compression) level value used (range is 1-51). An
automatic Qp is used when -1 value is set
• QP Range Min - Minimum quantization (compression) value (range is 1-51). When a
minimum value is set, the encoder will not use a lower value than specified. This setting is
mainly relevant for content with minimal movement where bit rate allocation can be
reduced.
• QP Max - Maximum quantization (compression) value (range is 1-51). When a maximum
value is set, the encoder will not use a higher value than specified. This setting is
specifically relevant in motion-intensive scenes where higher bit rate allocation is needed.
• Initial Delay (ms) - The delay for incoming PTS/DTS relative to PCR (range is 0-5000).
This setting enables the control of buffering within the receiver / decoder.
NOTE:
To minimize the end-to-end latency, the initial delay can be reduced to lower values. Such change may
impact video quality or encoder bitrate regulation. It is then recommended to allow either a higher bitrate
or a higher MuxRate Overhead.
• Maximum Delay (ms) - Maximum duration threshold before Access Units (AU‘s) are
multiplexed together. This setting minimizes high bitrate variations (range is 1-1000).
• Latency Monitoring – Enable to allow end-to-end latency monitoring when decoding the
stream with MGW Ace Decoder. Latency can be monitored within MGW Ace Decoder web
interface or via HTTP command.
If enabled, Timecode input is not captured from SDI input anymore.
• To ensure accurate Latency Monitoring, system date must be synchronized to an NTP server. Ensure to
correctly configure the NTP server in System/Date and Time section on both MGW Diamond and MGW Ace
Decoder.
• When Latency Monitoring is enabled, SDI timecode (VITC) is no more embedded.