0
VBR:
The bit rate varies according to the condition of
input video signals. The picture quality is stable
but it is difficult to estimate the bit rate. Select
from the list of bit rate ranges.
[Set values:
R
CBR, VBR]
[Bitrate range: 64, 128, 256, 384, 512, 768, 1024,
1536, 2048, 3072, 3584,
R
4096, 8192] kbps
Memo :
0
When “VBR” is set, the [Bitrate] setting uses
30 fps as a reference value.
When the frame rate is low, the actual bitrate
distributed may drop.
Example: When the frame rate is 15 fps and the
I-frame interval is 15 frames, specifying the
bitrate as 8192 kbps gives a maximum bitrate of
about 4000 kbps. (When the frame rate is below
30 fps, the extent to which the maximum bitrate
drops is dependent on the frame rate and the
I-frame interval.)
9
I Frame Interval (when “H.264 Baseline” or
“H.264 High” is selected)
Encoding starts from the I-frame. Shortening the
interval stabilizes the picture quality even when
there are rapid changes in the video image.
However, the picture quality for images with little
change will deteriorate.
[Set values: 5, 10, 15,
R
30, 60, 90, 120] Frame
9
Quality (when “JPEG” is selected)
Selects the JPEG picture quality (scalable rate
control method) and picture quality level.
0
AFS:
Encoding is performed such that the target file
size is the average size of multiple JPEG
images.
0
VFS:
The quantization table during JPEG encoding
will be maintained and the file size will increase
or decrease according to the input signals.
When recording JPEG data to a recorder with a
limited storage capacity, the maximum
recording time may vary as the file size
fluctuates under this setting.
[Set values:
R
AFS, VFS]
[Picture quality level: Level
1 to
R
Level
7]
Memo :
0
The target file size varies with the frame size and
picture quality level settings. The reference
value per frame is displayed to the right of the
picture quality setting pull-down menu.
When “Multi-Encode” is selected in [Encode]
Each of the three channels of the encoder can be
set to H.264 High, H.264 Baseline or JPEG, and a
different frame size can also be specified.
However, only one channel is available for H.264
Baseline, and therefore it cannot be set for multiple
encoders at the same time.
.
Encoder
No.1, Encoder
No.2 and
Encoder
No.3
Select either JPEG, H.264 Baseline, or H.264
High.
When Encoder
No.3 is set to “OFF”, the
Encoder
No.3 item will be disabled.
[Encoder
No.1 settings: JPEG, H.264 Baseline,
R
H.264 High]
[Encoder
No.2 settings:
R
JPEG, H.264 Baseline,
H.264 High]
[Encoder
No.3 settings: JPEG, H.264 Baseline,
H.264 High,
R
OFF]
46
[Advanced Settings] Page - [Encoding] Page
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