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Appendix B — Multi-Stream Registry Settings
103
Setting the Registry for Ligos Encoding
The LigosMux Registry Table
One last key that you may find useful in configuring the Ligos stream is the
AdjustGopTimeCode
string in the
LigosMux
Registry table. The only user-config-
urable key in the
LigosMux
table, the
AdjustGopTimeCode
key, when set to 1,
instructs the encoder to time-stamp the MPEG-1 stream to correspond to the time
codes of the source material. If you set the
AdjustGopTimeCode
key of the stan-
dard
Mux
Registry table to 1 as well, then the frames of the MPEG-2 stream will
bear the same time codes as those of the Ligos stream. Note that the
AdjustGopTi-
meCode
option should be used only when the time codes on the source material
are continuous from the mark-in through the mark-out. The mark-in “0” key in
the VTR table is used as the time code adjustment factor.
LigosMpeg1 Registry Table
Property
Registry Key
Data Type
Value Set
Comments
Ligos File Name
Filename
CString
The full path name of
the file that will hold
the MPEG-1 stream.
Audio Bit Rate
AudioBitrate
Long
64,000
80,000
96,000
112,000
128,000
160,000
192,000
224,000
256,000
320,000
384,000
Default: 192,000
Video Bit Rate
TargetBitrate
Long
512,000 to
3,000,000
Default: 1,150,000
Table B-3. LigosMpeg1 Registry Table — Spectrum