Grass Valley ProCoder 3 - Manual (Page 140)

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ProCoder 3
AVI Target
Common Options
See Common Target Options.
AVI-specific options
Video
Video Encoder
Selects the video encoder to use. Some video encoders may expose additional
options.
Color Format
Sets the color format to use for encoding. The appropriate color format normally
depends on your application.
Automatic ProCoder will select an appropriate color format based on the color
format requested by the codec. Automatic is not always available
as a selection.
RGB24 Uses the 24-bit RGB color representation.
YCbCr Uses the YCbCr color representation.
Use Default Quality
Enable this option to use the codec’s default quality setting. If this option is enabled,
the Video Quality option will be hidden.
Video Quality
Sets the video quality level for encoding. The higher the video quality, the better the
output will appear but encoding will take longer. If the codec allows specification of
both video quality and bitrate, the combination of both settings will determine the
visual quality of the final output.
Use Default Keyframe Interval
Enable this option to use the codec’s default keyframe interval.In temporal
compression, most frames of video are represented as the change from a previous
frame. Keyframes are full independent video frames in the output. Having more
keyframes generally results in better video quality but creates larger files when bitrate
is not constrained. When bitrate is constrained, more keyframes provides better
random access and higher fault-tolerance, but too many keyframes can reduce video
quality.
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