42
CONFIDENTIAL
DOC-USR-0049-03
____________________________________________________________________________________
Z3 Technology, LLC
♦
100 N. 8th St. STE 250
♦
Lincoln, NE 68508-1369 USA
♦
+1.402.323.0702
13.0
SUMMARY OF OPTIONS
This section lists the different parameters that are available in the various menus.
13.1
The Encoder Settings Tab
Parameter
Options (default in bold)
Notes
Video Source
Component
Composite
The input source for encoding.
Audio Source
Analog Jacks
Analog 32KHz
Analog 44.1KHz
Specifies the audio source and input audio
frequency. On the Z3-DM368-RPS, the
only audio source is analog. The default
frequency is 48KHz, with options to
choose 32KHz or 44.1KHz.
Audio Codec
AAC-LC ADTS
AAC-LC LATM
PCM
AC-3 Passthru
None
The codec to use for audio.
Audio Bit Rate
32, 64, 96,
128
, 192, 256, 320, 384
The bit rate for audio (in kbps).
Video Resolution
WQVGA – 1080i, or
follow input
The input resolution. [
Note 1
].
Rate Control
CBR
VBR
Chooses between “constant bit rate” and
“variable bit rate”. “Constant bit rate”
will cause the encoder to drop frames if it
detects the bit rate being exceeded.
Video Bit Rate
100 – 12000K (Default =
4000k
)
The video bit rate.
Video Profile
High
Main
Baseline
The H264 profile of the bitstream.
Generally High is used for > D1, Main for
D1, and Baseline for < D1.
GOP Size
15, 30,
60
, 120, 240
I-frame frequency. A GOP size of 15, for
example, would mean 1 I-frame every 15
frames.
Video Burst Size
150 – 2000ms (
300
)
# of ms to buffer. The higher the value,
the smoother the encode, but also the
higher the latency.
Video Codec
H.264
MPEG-2
The codec to use for video encoding.
Frame Decimation
None
, 1/2, 1/3, 1/4
Used to reduce the frame rate. For
example, selecting “1/2” frame
decimation for 30fps input would cause a
bitstream encoded at 15fps.