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C H A P T E R
4
Chapter 4:
VIDEO AND AUDIO OPTIONS
When you create an output as described in Chapter 3, you can define video and
audio encoding options. The section “Stream Control” on page 31 explains how to
encode a stream once you have defined the input and set up all of the outputs.
Video Options
The
Video
tab for an output sets the video format and streaming rate for the stream.
Video Encoding Settings
Video Codec
The
Video Codec
drop-down selects the video format created by the Helix Broadcaster encoder:
•
No Video Transcoding
If you select this option, Helix Broadcaster will not re-encode the stream, which saves
processing power. The stream is passed through as-is, however, and you cannot change
characteristics such as streaming speed or aspect ratio.
•
MPEG2 Video
MPEG-2 video is common to television production. It should be used only at output rates
of 1 Megabit per second or higher. This format is typically not renderable by Internet
media clients.
•
Remove Video
If this option is selected, Helix Broadcaster does not encode or pass through any video.
This results in an audio-only stream. When you choose this option, other video settings are
ignored.
