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Video Formats
Active Video Start Line
The active video starts on line 23 for both 525-line and 625-line (SMPTE RP 202-2000).
Video Resizing
The unit supports the input of video at 720x576, 25 Hz and 720x480, 29.97 Hz.
The following re-sampling of any input format is supported:
NOTES :
1. For
SIF
/
CIF
resolutions (352x288 and 352x240) the vertical resolution drop is achieved by dropping the second field.
2. CIF and SIF are measures of video resolution. CIF resolution measures 352x288 pixels, regardless of whether the video input is
NTSC or PAL. SIF resolution, on the other hand, measures 352x288 pixels for PAL cameras but 352x240 for NTSC cameras. CIF is
commonly associated with H.261/H.263 and SIF with MPEG.
Should the output resolution be changed, the pre-processor ensures the change occurs at a GOP boundary and that the previous
GOP is closed.
Audio Technical Specification
Encoding Stereo
Lists the coding standards for any VCM audio module for coding stereo.
MPEG-1 Layer II Coding Modes
This topic contains a full list of supported modes with associated descriptions.
MPEG-1 Layer II Bit Rates
Tabulates the supported bit rates for the MPEG-1 layer II coding modes.
Dolby Digital Encoding - Not Pass Through
Describes the support for the coding modes for Dolby Digital encoding (not pass through).
25 Hz input format
29.97 Hz input format
Process
720x576@25 (pass through)
[email protected] (pass through)
Scale 1/1
704x576@25
Scale 1/1 and blank 8 pixels at left and
right edges
640x576@25
Scale 8/9
544x576@25
Scale 3/4 and add 2 blank pixels to left
and right edges
528x576@25
Scale 3/4 and blank 6 pixels at left and
right edges in scaled image
480x576@25
Scale 2/3
352x576@25
Scale 1/2 and blank 4 pixels at left and
right edges in scaled image
352x288@25 (SIF/CIF)
[email protected] (SIF)
© Ericsson AB 2011. All rights reserved
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