Target options, Video-basic – Grass Valley ProCoder 3 User Manual

Page 171

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ProCoder 3

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Using ProCoder

Helpful Hints

ProCoder

Reference

Glossary

Index

171

Target Options

Video-Basic

Multi Bitrate Streams

Click the ... button to display the Video Stream Properties dialog where you can view
the currently selected streams, add new streams, rename streams or remove streams.

Select Video Stream

If more than one stream is defined, select the stream to view or modify from the drop-
down list. The Video-Basic and Video-Advanced sections will change to reflect the
selected stream.

Encoder

Select the video encoder to use from the drop-down list.

Image Quality

The Image Quality slider sets the balance between frame rate and image quality. A
value of 0 maximizes the frame rate at the expense of image quality and a value of
100 maximizes image quality at the expense of frame rate.

Bitrate Mode

Select the bitrate control mode from the drop-down list.

CBR

Selects constant bitrate mode. The bitrate will correspond to the
Video Bitrate(kbps) setting. CBR mode is most useful for streaming.

Quality Based VBR

Selects Quality Based variable bitrate mode. The bitrate will vary in
order to maintain the quality specified in the VBR Quality setting.

Constrained VBR

Selects Constrained variable bitrate mode. Constrained VBR mode
varies the bitrate up to the Maximum Bitrate (kbps) setting in order
to maintain video quality.

Unconstrained VBR

Selects Unconstrained variable bitrate mode. Unconstrained VBR
mode varies the bitrate to maintain the selected video quality
without a maximum bitrate limit.

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