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Appendix B: Containers, Codecs, and Vantage Actions
MPEG2-TS Output
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Lightspeed Live Capture User Guide
MPEG-2
General
Bit Rate . Specifies the video bit rate (in kbps). Between 512 and 300,000.
GOP Structure . Sets the GOP Structure as a combination of I frames, B frames, and P
frames. I frame-only structures have a lower visual quality but are well suited for
editing. Longer GOP structures have higher visual quality and are best suited for
playout.
GOP Configuration . Specifies the type of GOP structure: Open GOP or Closed GOP.
Start with I Frame . When checked, specifies that the GOP start with an I-frame (display
and coded order).
Motion Estimation Factor . Indicates how much motion estimation to use when
encoding the video stream. A higher value results in higher quality and increases the
encode time. The default is 80 and the range is 1 to 100.
Profile . Specifies the MPEG profile to use during encoding: High | Main | 4:2:2.
Level . Specifies the MPEG level to use during encoding: High | High 1440 | Main.
Video Performance Setting . Indicates the video quality setting to use when encoding
the video stream. A higher value results in higher quality and increases the encode
time. The default is 9 and the range is 0 to 31.
MPEG Encoder Version . Specifies the MainConcept MPEG encoder version to use, or
set to Auto.
Video Buffer Verifier
Video Buffer Verifier . Specifies how to configure Video Buffer Verifier buffer size and
delay settings:
- Do not specify VBV settings
- Specify VBV settings. When Specify VBV Settings specified, configure these settings:
VBV Buffer Size . Specifies the size of the VBV buffer in kbps. Larger values allow the
encoder greater flexibility during encoding.
VBV Delay . Specifies how much time is allowed between the transmission of the first
frame and its actual decode. Larger values allow the encoder greater flexibility during
encoding.
x264
Profile . Baseline | Main | High | High 10 | High 4:2:2
Bit Rate (in kbps) . Specifies the target bit rate (512 - 50,000).