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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-V685/686/686B
Format /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-V685/686/686B
Format /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-V685/686/686B 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
selection. Each of these choices corresponds to the file sizes as follows.
Level File Size Setting for VGA File Size Setting for QVGA
1 80k 27k
2 60k 20k
3 40k 13k
4 30k 10k
5 25k 8k
6 20k 7k
7 15k 5k
When rate control is set to vfs and a file size that is not stated above is specified, the closest choice will be displayed on
the WEB setting page. 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 MPEG-4 Frame Size from VN-V685/686/686B
Format /api/param?encode(2).framesize