Extron Electronics SME 100 User Guide User Manual
Page 96
c
Encoder Configuration panel
•
Resolution — This drop-down menu is used to set the resolution of the video
being output (streamed) by the SME 100. The
" section lists output resolutions that are supported by the SME 100.
•
Frame Rate — This drop-down menu is used to set the frame rate of the video
being output (streamed) by the SME 100. The range of settings varies depending
on the media player plugin used to view streams. The default is
30
frames per
second.
•
Stream Mode — This drop-down menu is used to set what is being output
(streamed) by the SME 100. Two configuration options are available:
Video / Audio
or
Video Only
. The default is
Video / Audio
.
•
Stream Type — Three selection drop-down menus to select a bit rate scheme.
•
VBR — The Variable Bit Rate (VBR) scheme continuously adjusts the bit rate
depending on image complexity. It uses more bandwidth when the video frame
is more complex and less bandwidth when the video frame is simple. Use the
Video Bit Rate
field to set the base bit rate number.
•
CVBR — The Constrained Variable Bit Rate (CVBR) scheme works the same
as VBR, but sets a maximum bit rate that cannot be exceeded. It doubles the
value specified in the
Video Bit Rate
field (so if the
Video Bit Rate
field
contains a value of
1000
kbps, the maximum allowed bit rate is set to
2000
).
•
CBR — The Constant Bit Rate (CBR) scheme adjusts the bit rate so that it
stays close to, but does not go over, the specified bit rate. This bit rate control
mode is the most aggressive of the three schemes. The bit rate is specified
using the
Video Bit Rate
field.
NOTES:
•
If the specified bit rate is set higher than is required to output the
stream, CBR only uses the necessary bit rate required to output the
stream and does not attempt to stay close to the specified bit rate.
•
If the output stream requires a higher bit rate to display the stream
properly (the specified bit rate is not set high enough), the quality of
the output stream will be adversely affected. This is because the CBR
scheme cannot adjust the bit rate higher than the specified bit rate.
•
Closed Captioning —
Drop-down menu used to enable or disable Closed
Captioning
.
•
Profile Type — Profile type and profile level are used to maintain compatibility
with connected decoders.
This drop-down menu sets the compression level of the
H.264 stream from one of three choices:
•
Baseline – Lowest compression level and less processor intensive to decode.
•
Main – Midrate compression and performance.
•
High – Higher compression levels and better quality for the selected bit rate but
more processor intensive to decode.
•
Profile Level —
This drop-down menu sets the upper limits of resolution, bit rate,
and frame size. Settings are from 3.0 (for lower limits) to 5.0 (for higher limits).
•
Video Bit Rate — This field is used to specify the number of video bits that are
processed (output) per second. The range of settings is
200
to
10000
.
Default is
1000
.
•
Audio Bit Rate — This field is used to specify the number of audio bits (in kilobits)
that are processed (output) per second. The range of settings is
16
to
384
.
Default is
384
.
SME 100 • Web-based Configuration Page
90