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Appendix B: Containers, Codecs, and Vantage Actions
Primary Output - Video Codecs
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Lightspeed Live Capture User Guide
General
Video Bit Rate . Specifies the bit rate, per second.
Quantization Coefficient . Specifies quality (0-100). If set toward the lower range it
reduces data correspondingly and quality decreases; if set to the upper range it
increases data and quality. However, the default value of 0 (zero) applies no coefficient
(effectively disables the feature), resulting in the video being encoded at the full data
rate. Un-check the Use Default Quantization Coefficient option to enable this ability to
specify the quality.
Pixel Format . Specifies the color space, chroma subsampling, and bit depth to use for
encoding.
- RGB 4:4:4 8 bit or 10 bit @50,000 bp/s
- YUV 4:2:2 10 bit @50,000 bp/s
- YUV 4:2:2 8 bit @50,000 bp/s
Tile Partition Width . Specifies the tile partition width in pixels.
Tile Partition Height . Specifies the tile partition height in pixels.
Precinct Width and Height . Specifies the precinct size.
Code Block Width and Height . Specifies the height and width (in pixels) of a code
block to process.
Packet Progression . Specifies the order of packet progression.
Decomposition Levels . Specifies the Discrete Wavelet Transform resolution.
Tile-Part Length Markers . When checked, specifies that Tile Length Markers will be
used.
End of Packet Header Markers . When checked, EPH marker segments are generated.
Start of Packet Markers . When checked, Start of Packet marker segments are
generated.
CUDA Memory Limit . Specifies the CUDA memory limit in MB.
Note: When the CUDA Memory Limit is set to 0, GPU processing is disabled.
CUDA Tile Limit . Specifies the CUDA tile limit.
Encoder Queue Size . Specifies the encoder queue size.