not same, compression on QVGA can have privacy masking.
The change is saved by the API, encode(1).status=save. If the change is not saved, the setting is restored by reboot.
Allowed users admin, operator
Getting JPEG Rate Control Setting from VN-V686Format /api/param?encode(1).cbr_mode
Example of response encode(1).cbr_mode=afs&200 OK
Interpretation Acquire the rate control setting of JPEG. Quantization table is fixed in the case of vfs
(VariableFileSize). In the case of afs (AverageFileSize), bit rates are controlled such that the average size of multiple
files remains constant.
Allowed users admin, operator, user
Setting JPEG Rate Control for VN-V686Format /api/param?encode(1).cbr_mode=data
Example /api/param?encode(1).cbr_mode=vfs
Example of response encode(1).cbr_mode&202 Accepted(encode(1).status=save)
Interpretation Change rate control of JPEG. Rate control can be set to vfs or afs. In vfs (VariableFileSize),
quantization table is fixed. In afs (AverageFileSize), average file size of multiple JPEGs is controlled to be constant.
The change is saved by the API, encode(1).status=save. If the change is not saved, the setting is restored by reboot.
Allowed users admin, operator
Getting JPEG File Size Setting from VN-V686Format /api/param?encode(1).quality
Example of response encode(1).quality=40k&200 OK
Interpretation Acquire the file size setting of JPEG. If the response is 40k for example, the setting is 40KB.
Allowed users admin, operator, user
Setting JPEG File Size Setting for VN-V686Format /api/param?encode(1).quality=Data
Example /api/param?encode(1).quality=30k
Example of response encode(1).quality&202 Accepted(encode(1).status=save)
Interpretation Change the file size setting of JPEG. The unit of set values is in KB. VN-V686 will perform rate
control with this file size as the target.
When frame size is VGA, setting between the range of 10k to 100k is possible. When frame size is QVGA, setting
between the range of 3k to 33k is possible.
When VFS (VariableFileSize) is specified for rate control at the WEB setting page, 7 levels will be available for
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