Table of Contents
Advertisement
5. API for Acquiring/Changing Parameters of VN-E4 _
Acquiring File Size Setting from VN-E4
Format
Example
Example of response
Interpretation
Allowed users
Setting File Size for VN-E4
Format
Example
Example of response
Interpretation
Allowed users
Acquiring Interpolation Setting from VN-E4
Format
Example
Example of response
Interpretation
Allowed users
/api/param?encode(Number).quality
When acquiring file size setting of Encoding No. 1
/api/param?encode(1).quality
encode(1).quality=40k&200 OK
Acquire the file size setting of the specified encoding number. Note that encoding numbers are different from
video input channels. If the response is 40k for example, the setting is 40KB.
admin, operator, user
/api/param?encode(Number).quality=Data
When setting the file size of Encoding No. 1
/api/param?encode(1).quality=60k
encode(1).quality&200 OK
Change the file size of the specified encoding number. Note that encoding numbers are different from video
input channels. The unit of set values is in KB. VN-E4 will perform rate control with this file size as the target.
The frame sizes for ch(1), ch(3), ch(5) and ch(7) are in VGA, and therefore setting between the range of 10 k to
100 k is possible. The frame sizes for ch(2), ch(4), ch(6) and ch(8) are in QVGA, and therefore setting between
the range of 3 k to 33 k 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
1
80k
2
60k
3
40k
4
30k
5
25k
6
20k
7
15k
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.
admin, operator
/api/param?encode(Number).interpolate
When acquiring interpolation of Encoding No. 1
/api/param?encode(1).interpolate
encode(1).interpolate=on&200 OK
Acquire the interpolation setting of the specified encoding number. Note that encoding numbers are different
from video input channels. When this is set to on, JPEG-compression will be performed upon creating VGA
based on the first field out of the 2 fields that make up the video frame. When this is set to off, the video frame
will be directly JPEG-compressed. This item is valid when the frame size is in VGA (Encoding Nos.: 1, 3, 5
and 7). When the frame size is in QVGA (Encoding Nos.: 2, 4, 6 and 8), this will be invalid as only the first
field will be used from the beginning.
admin, operator, user
5.3. JPEG Encoding
File Size Setting for QVGA
27k
20k
13k
10k
8k
7k
5k
25
Advertisement
Table of Contents
