Z3 Technology ZCube-21 - Page 56

ZCube-21 User Guide
DOC-USR-0253-01
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MJPEG
MJPEG is only available when RTP or RTSP are
selected as the Output format.
Video Profile*
(H264(AVC) Only)
High
Main
Baseline
The H.264 profile of the bitstream. Generally High
is used for 1080p or greater, Main for D1, and
Baseline for less than D1.
Video Rate Control*
VBR
CBR
Selects the encoder rate control mechanism. VBR
(Variable Bitrate) means that the encoding bit rate
can fluctuate within the bit rate statistical period.
CBR (Constant Bitrate) means that a stable
encoding bit rate is ensured within the bit rate
statistical time.
Gradual Data
Refresh*
True
False
Select True to enable refresh of the frame data
gradually.
Video Bitrate
(RTP, RTSP, RTMP,
RTMPS, and MP4
Only)
2K - 100M (4M)
Textbox for entering video bit rate. For example:
1M = 1,000,000 bits per second
1000k = 1,000,000 bits per second
2.5M = Not a Valid Format
Frame Rate
Full
Half
Quarter
Sixth
Used to encode at less than the input frame rate
(for example, an input frame rate of 30fps with
Half selected would cause an output stream of
15fps). If interlaced input is used then this is used
to reduce the number of fields being encoded.
GOP Size*
10 – 240 Frames
(60 Frames)
I-frame frequency. The number of frames in each
Group of Pictures (GOP).
Audio Enable
True
False
Select True to enable encode of audio from the
powered/amplified microphone jack.
Audio Setup (if Audio Enable is set to True)
Codec
ARM AACLC
ARM AACLC MPEG2
ARM AACHE
ARM AACHE V2
Codec to be used for audio encode.