Page 331 - Manual_Movie Edit Pro 2021_EN_Neat

MPEG-4 encoder settings (standard) 331
The video will be interlaced. The lower lines (Bottom field) are used for the first
field and upper lines for the second.
• Top field first
The video will be interlaced. The upper lines (Top field) are used for the first field
and the lower lines for the second.

MPEG-4 encoder settings (standard)

In the „Advanced Settings“ you can make detailed adjustments to the MPEG-4 data
flow.

The advanced settings are divided into "Video", "Audio", and "Multiplexer".

Video

Note: The preset values and status of the control element (locked/unlocked)
depend on the selected export preset.

Bit Rate Mode: The bit rate indicates how much data is saved in the video per second
(at playback speed). This makes the bit rate the deciding parameter with regard to the
file size and quality of the video to be encoded. A higher bit rate means better quality,
but also a larger file size.
• Constant: The exact value entered in "Average bit rate" is applied which enables
precise calculation of the video size.
• Variable: The value entered in "Average bit rate" is used as an approximate
guideline for the value applied to the video. This means that the size of the video
can only be estimated.
• Constant quantization parameter: This parameter ensures that the video quality
remains the same throughout.

Average bit rate (kbps): The bit rate entered here is used as the average rate applied
to the video. The size of the video to be exported can only be approximated.

Maximum bit rate (kbps): This is the maximum bit rate for the video stream, i.e. the
maximum number of bits the decoder is allowed to transfer per second. This
parameter only takes effect in the "Variable" bit rate mode.

CPB (Coded Picture Buffer): The entered value specifies the maximum amount of
storage space for an encoded frame. Higher values can improve quality, but might
also cause problems during export. If export is aborted, lower this value.