Lilin 7000MPG4OOE, User Manual

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P-frames, or predictive frames, are predicted based on prior P or I-frames plus some additional data. They have a
much higher compression ratio than I-frames.
I-frame only mode has very little compression resulting in large file sizes.
I-frame and P-frame mode offers relatively good compression with medium file sizes. Although this requires more
work on the host PC to decode the video.
GOP Size : GOP stands for Group Of Pictures. It defines the number of frames from one I-frame to the next. Since
an I-frame uses very little compression, while P/B frames use much higher compression, a larger GOP size,
results in smaller file sizes. For more information about I/P/B-frames, see below.
For MPEG-4 there is no maximum GOP size defined. It can be as low as 1 V just an I-frame - or into the
thousands. However, as the GOP size increases, the compression increases, and therefore the more likelihood of
errors. A higher GOP size also results in higher buffering times.
For DVDs the GOP size is 15. The default on the MVS is set to 60, which offers fair compression with a low
likelihood of errors.
Peak Bitrate : This is used to set a maximum bitrate that can be achieved. This is useful for setting bitrates
between the values that are available from the Video Encoder bitrate list.
Apply : Click this button to save the changes made.
– Image Adjustment
Contrast, Brightness, Hue and Saturation : The value can be adjusted from -100 through 100.
Rotation : Rotation degrees run from 0 to 270 degrees for a permanent digital position.
0: 0 degree
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1: 90 degrees
2: 180 degrees
3: 270 degrees
Load Default : Click this button to set the image adjustments back to factory default.
Save : Click this button to save the changes made.
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