Extra Information

Chapter 10: MPEG-4 Options and Settings
78 ViewCast
Tab Description
— Crop
• You can have multiple video capture streams in a single application, or you can
have multiple applications each with one or more capture streams.
• For details about purchasing and installing SimulStream, refer to Chapter 11.
• The base AVStream driver includes a free evaluation version for you to try.
• When you install SimulStream, the controls in this group affect the fully licensed
SimulStream mode.
NOTE: If SimulStream is not installed, you see the watermark that indicates
you are running in evaluation mode. The controls still work.
• If you set up a custom watermark, the evaluation watermark preempts it as long
as you have evaluation mode turned on.
Filters,
Deinterlace
Filter
• Removes artifacts that the system can introduce when encoding NTSC, PAL, or
SECAM formatted video.
• These artifacts usually manifest as a jaggedness surrounding a moving object.
• Apply and store these filters per each device.
• Applies to all filters and pins associated with a specific device.
• Includes four radio button options:
1. Off that disallows interlacing.
2. Motion adaptive that applies motion adaptive interlacing to all video.
3. Inverse telecine that applies inverse telecine deinterlacing to all telecine
video.
a. It performs no deinterlacing of non-telecine video.
b. It is available for NTSC video only.
4. Auto that applies inverse telecine deinterlacing to all telecine video.
a. It applies motion adaptive deinterlacing to all non-telecine video.
b. It switches dynamically between the two modes as the content
changes.
c. It is available for NTSC video only.
Filters, Telecine
• NTSC video originally created on 24-frame-per-second film.
• Repeats certain fields in a regular, recurring sequence in the telecine conversion
process.
• Provides visible interlacing artifacts if you view a telecined sequence on a
progressive window.
• Only applies to NTSC video.
• Not used for PAL and SECAM video.
• If you select PAL or SECAM as the video standard, you disable telecine.
• Represents the film-to-video conversion process.
Filters, Inverse
Telecine
• The reverse of telecine.
• Drops redundant fields and reassembles video in a 24 fps progressive format.
• Removes 100% of interlacing artifacts.