Osprey Talon G2 model SAH-E23, Руководство пользователя

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Osprey Talon User Guide
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Product specifications and availability may change without notice <20161223
Encode Profiles
There are nine Encode Profiles available on Talon.
These range from ‘Low’ which creates a low
bitrate stream with a video resolution of 480x270,
to ‘HD 1080 60fps” which creates a rob ust 3G
stream. There are specialty profiles for Facebook®
and YouTube® that conform to the published
suggestions of those platforms. When an Encode
Profile is selected, Talon configures the advanced
settings. The Video Bitrate and Maximum Delay
can be adjusted without changing the profile.
Video Bitrate
Video Bitrate (vrate) is the desired encoded rate of
the outgoing video. Settings are expected in
Kilobits per second. For example, you may use
100000; 100k; 100K etc. You may also use 1m; 2m,
etc representing Megabits per second. 1G, etc is
not accepted.
NOTE: If a setting is out of bounds for the encoder
you will receive the message “status: !Error: Bad
vrate xK”. This only indicates that the setting is not
acceptable to Talon. It is possible to set a value
that is acceptable to Talon, but is not adequate to
support quality video.
Maximum Delay
This setting adjusts the amount of internal buffer the encoder is allowed to use. Larger
buffer gives the encoder more time to produce more accurate video. The default of
2000 is generally adequate for most streaming. A setting of 0 will result in blocky video. A
setting above 5000 does not usually provide a significant improvement.
In technical terms the Maximum Delay setting controls how much time is allowed for the
bitrate to reach the average set by the ‘Video Bitrate’. A longer buffer allows the
bitrate to rise and fall more with the complexity of the video. Some live encoding
applications do not tolerate large fluctuations in the bitrate. If you encounter such
problems set the Maximum Delay to the 100-300ms range. This will provide better results
for applications requiring a constant bit rate.