Matrox MXO2 Installation And User Manual page 89

Under Compression Settings , select the compression settings you want to
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be used to encode your video.
Select the H.264 level that you want for your encoded video.
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H.264 level
2.0
3.0
4.0
4.2
Select the Frame size and aspect ratio that you want for your encoded
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video.
¦ Note The available frame sizes depend on your selected H.264 level. If the
compression frame size differs from your source video's frame size,
CompressHD's onboard scaler will either upscale or downscale your source
video.
Select the Frame rate that you want for your encoded video.
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From the Algorithm menu, select the entropy encoding method to be
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used during compression:
CABAC
•
CAVLC
•
(CAVLC is not supported when encoding to HD).
Use the Average data rate slider to set the average amount of data that
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will be transferred per second by CompressHD's variable bitrate video
encoder.
If your source video is interlaced and you want to de-interlace your video
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before encoding, select De-interlace video .
If your source video must be scaled for encoding, and its aspect ratio does
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not match your selected compression aspect ratio, select Retain aspect
ratio when scaling
option is selected, CompressHD will encode your source video as
pillarbox video when encoding to a larger aspect ratio, or letterbox video
when encoding to a smaller aspect ratio. If this option is not selected,
CompressHD will encode your source video as anamorphic video.
Under GOP Structure , select the type of GOP structure that you want the
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Matrox MAX H.264 codec to use to encode your video:
Specifying Matrox MAX H.264 settings for Apple Compressor
Maximum
Frame size
320 ×240
720 ×480
1920×1080
1920×1080
Encodes the video stream using the H.264 Main profile.
Encodes the video stream using the H.264 Baseline profile
to maintain your source video's aspect ratio. If this
Maximum Maximum
Frame rate Data rate
(fps) (Mb/sec)
29.97
29.97 10
29.97 20
59.94 50
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