Matrox Monarch HD User Manual page 37

36
Frame rate
You can choose to record at your input source's Full frame rate, or at a Half or a
Quarter
¦ Note If your input source is 1920×1080p at 50/59.94/60 fps and the recording
resolution is set to a width greater than 1280 and/or height greater than 720, the
maximum supported recording frame rate is 30 fps. If Full is selected from the
Frame rate
source's frame rate after clicking Apply .
Target video data rate
Enter the target average video data rate for your recording. When entering an
average data rate, the minimum and maximum data rates are automatically set
to 90% and 110% of the average data rate, respectively. The default minimum
and maximum values are suitable in most instances, however, you can change the
minimum and maximum values to suit your needs. The maximum average video
data rate for recording depends on the selected operating mode (see
HD operating modes"
encoding.
GOP structure
Type the GOP size (distance between I frames) and distance between P
frames
HD uses the IBP pattern when encoding for recording. For example, a GOP size
of 15 and a distance between P frames of 3 creates a GOP structure of
IBBPBBPBBPBBPBBI.
Include audio
Select Include audio to record the selected audio source along with the video.
Monarch HD uses the AAC audio format for recording. Clear this option if you
do not want to record audio. For more information on configuring audio settings,
see "Specifying audio input settings"
Advanced settings
• Profile Set the H.264 encoding profile for your stream. You can select
either Baseline , Main , or High . Typically, High profile provides the best
image quality and is suitable in most instances. However, depending on the
decoder used when viewing the recorded file, such as with mobiles devices,
a Main or Baseline profile may be required.
• Frame slices You can choose to slice each frame into 2 , 4 , or 8 sections
when encoding, or you can select 1 to encode the frame as a whole. Slicing
each frame when encoding the video for recording may be useful when a
multi-slice decoder device is used to view the recorded file.
Chapter 4, Specifying Settings and Using the Command Center
of your source's frame rate.
list, the frame rate will automatically be set to Half of the input
on page 28). Monarch HD uses a variable data rate when
to which you want to encode your input source for recording. Monarch
on page 26.
"Monarch