This is a page for specifying settings on JPEG/H.264 encoding.
The settings here are linked to the [Encode] item in the [Basic Setting2] page.
[Encoding] Page
TOPThis page can be used during access using “admin” or “operator”.
Click [Advanced Settings] in the side menu, and click [Encoding].
Press the [OK] button to enable the new settings.
If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the entry will be denied. Press the [Cancel] button to restore the invalid entry to the value before the change was made. If you press the [Cancel] button, other changed items will also be restored to the values before the change was made.
There is upper limit to transmission bit rate from the camera. If a bit rate that exceeds upper limit is specified, this new setting will not be applied.
For details on the maximum transmission limit, refer to the following.
The contents displayed in “Encoder No.1”, “Encoder No.2” and “Encoder No.3“ change depending on the type of encoding and the item selected.
If the distribution bit rate exceeds 40 Mbps, the specified frame rate distribution fails.
In cases such as high-bitrate distribution at a frame size of 1920 
1080 and frame rate of 30 fps (particularly slow pan operations), the camera image may not appear smooth even on a high-performance computer. In this case, lower the [Framesize], [Framerate], and [Bitrate], and check the image again.
Memo
H.264 High indicates H.264 High Profile, and H.264 Baseline indicates H.264 Baseline Profile.
Settings
Setting values with 
are default values.
Encode
Select the encoding from “Single-Encode” or “Multi-Encode”.
Single-Encode
Multi-Encode
[Set values: Single-Encode, Multi-Encode]
When “Single-Encode” is selected in [Encode]
Enables only Encoder No.1 out of the three channels of encoders.
Encoder No.1
Select either JPEG, H.264 Baseline, or H.264 High.
[Set values: JPEG, H.264 Baseline, H.264 High]
Framesize
Select the frame size of each JPEG or H.264 screen.
[Set values: 1920 1080, 1280 960, 1280 720, 720 480, 640 480, 640 360, 352 240, 320 240]
Framerate
Select a frame rate.
[Set values: 30 fps, 25 fps (JPEG is not supported), 15 fps, 10 fps, 7.5 fps, 5 fps, 3 fps, 2 fps, 1 fps]
Bitrate (when “H.264 Baseline” or “H.264 High” is selected)
Select whether to set the scalable rate control method for single encoding to CBR (Constant Bit Rate) or VBR (Variable Bit Rate).
CBR:
Data is encoded at a fixed bit rate regardless of the condition of input video signals. It is easy to estimate the bit rate. Select from the list of bit rate ranges.
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: CBR, VBR]
[Bitrate range: 64, 128, 256, 384, 512, 768, 1024, 1536, 2048, 3072, 3584, 4096, 8192] kbps
Memo
When “VBR” is set, the [Bitrate] setting uses
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.)
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, 30, 60, 90, 120] Frame
Quality (when “JPEG” is selected)
Selects the JPEG picture quality (scalable rate control method) and picture quality level.
AFS:
Encoding is performed such that the target file size is the average size of multiple JPEG images.
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: AFS, VFS]
[Picture quality level: Level 1 to Level 7]
Memo
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, H.264 High]
[Encoder No.2 settings: JPEG, H.264 Baseline, H.264 High]
[Encoder No.3 settings: JPEG, H.264 Baseline,
OFF]
Framesize
Select the frame size of each JPEG or H.264 screen.
[Encoder No.1 settings: 1920 1080, 1280 960, 1280 720, 720 480, 640 480, 640 360, 240, 320 240]
[Encoder No.2 settings: 1920 1080, 1280 960, 1280 720, 720 480, 640 480, 640 360, 240, 320 240]
[Encoder No.3 settings: 720 480, 640 480, 360, 352 240, 320 240]
Framerate
Select a frame rate.
[Encoder No.1, Encoder No.2 and Encoder No.3 settings: 30 fps, 25 fps (not selectable for JPEG), 15 fps, 10 fps, 7.5 fps, 5 fps, 3 fps, 2 fps, 1 fps]
Bitrate (when “H.264 Baseline” or “H.264 High” is selected)
Select whether to set the scalable rate control method for each encoder to CBR (Constant Bit Rate) or VBR (Variable Bit Rate).
CBR:
Data is encoded at a fixed bit rate regardless of the condition of input video signals. It is easy to estimate the bit rate. Select from the list of bit rate ranges.
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.
[Encoder No.1, Encoder No.2 and Encoder No.3 settings: CBR, VBR]
[Bitrate range: 64, 128, 256, 384, 512, 768, 1024, 1536, 2048, 3072, 3584, 4096, 8192] kbps
Memo
When “VBR” is set, the [Bitrate] setting uses
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.)
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.
[Encoder No.1, Encoder No.2 and Encoder No.3 settings: 5, 10, 15, 30, 60, 90, 120] frames
Quality (when “JPEG” is selected)
Selects the JPEG picture quality (scalable rate control method) and picture quality level.
AFS:
Encoding is performed such that the target file size is the average size of multiple JPEG images.
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.
[Encoder No.1, Encoder No.2 and Encoder No.3 settings: AFS, VFS]
[Encoder No.1 picture quality level: Level 1 to Level 7]
[Encoder No.2 and Encoder No.3 picture quality level: Level 1 to Level 4 to Level 7]
Note
H.264 Baseline cannot be set for multiple encoders at the same time. Only one channel can be set with a frame size of 1280 720 or lower and a bit rate of 1.5 Mbps or lower. If the setting you have selected exceeds these limits, a message will appear when you press the [OK] button.
Memo
You can specify the file size by combining the frame size and the picture quality level.
Select between Level 1 and 7. The picture quality increases when the level value is small. However, the file size increases.
The reference value per frame is displayed to the right of the picture quality setting pull-down menu.
During multi-encoding, there is a limit to the total number of pixels per unit time that can be encoded simultaneously by three encoders (total frame size and frame rate processed by each encoder).