JVC VN-H157WPU Instruction Manual - Page 31

MPEG-4, Encoding, display, Framesize, Set values, Framerate, Bitrate, I Frame Interval

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MPEG-4 Encoding display Framesize Framerate Bitrate I Frame Interval When the encoder is set to MPEG-4, the settings items are as follows. MPEG4 Matches the Framesize selected in Multi-Encode 2. Cannot be set from Encoding No. [Set values: 640x480, 320x240] Select the Framerate. [Set values: 15 fps, 10 fps, 7.5 fps, 1 fps] Select the single encoding compression method from CBR (fixed Bitrate) or VBR (variable Bitrate). CBR : Encoding is performed at a fixed Bitrate regardless of the condition of the input image signal. The Bitrate is easy to predict. Select from the Bitrate Range List. VBR : The Bitrate changes according to the input image signal. The Bitrate is difficult to predict. Select from the Bitrate Range List. [Set values: CBR, VBR] Bitrate range: [Set values: 64, 128, 256, 384, 512, 768, 1024, 1536, 2048, 3072] kbps Select I Frame Interval. Sets I Frame Interval as the starting point and encodes. The smaller the interval, greater the stability of image quality even if the image changes greatly. With images which do not change image, set the image quality low. Also, this reduces the time needed for recovery of images with which packet loss has occurred during multicast. [Set values: 1, 2, 3, 5, 7, 10, 15, 25, 30] frames Memo: ● Setting ranges may be restricted and some settings options may be unselectable depending on encoder combinations. Refer to Single Encode, Multi-Encode, and Multi-Resolution for more information. 31

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31
Memo:
●
Setting ranges may be restricted and some settings options may be unselectable depending on
encoder combinations.
Refer to Single Encode, Multi-Encode, and Multi-Resolution for more information.
MPEG-4
When the encoder is set to MPEG-4, the settings items are as follows.
Encoding
display
MPEG4
Framesize
Matches the Framesize selected in Multi-Encode 2. Cannot be set from
Encoding No.
[Set values:
640x480, 320x240
]
Framerate
Select the Framerate.
[Set values:
15 fps, 10 fps, 7.5 fps, 1 fps
]
Bitrate
Select the single encoding compression method from CBR (fixed Bitrate)
or VBR (variable Bitrate).
CBR
:
Encoding is performed at a fixed Bitrate regardless of the
condition of the input image signal. The Bitrate is easy to
predict. Select from the Bitrate Range List.
VBR
:
The Bitrate changes according to the input image signal. The
Bitrate is difficult to predict. Select from the Bitrate Range List.
[Set values:
CBR, VBR
]
Bitrate range:
[Set values:
64, 128, 256, 384, 512, 768, 1024, 1536, 2048, 3072
]
kbps
I Frame Interval
Select I Frame Interval. Sets I Frame Interval as the starting point and
encodes.
The smaller the interval, greater the stability of image quality even if the
image changes greatly. With images which do not change image, set the
image quality low. Also, this reduces the time needed for recovery of
images with which packet loss has occurred during multicast.
[Set values:
1, 2, 3, 5, 7, 10, 15, 25, 30
]
frames