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- Dolby Digital (56 kbps to 640 kbps) (software option VP/SWO/AC3)
- Pass through of pre-encoded Dolby Digital or Dolby Digital Plus
- AAC
- Transcode from Dolby E
Indications
LED indication for SDI lock status (see Installing the Equipment> External Interfaces > SD MPEG-2 VCM >
Video Input
: LED
Indication).
EN8180 HD MPEG-2 Video Encoding
Inputs
HD-SDI Input via 75 ohm BNC connector.
Digital Audio Input via 15 way D-Type connector
Overview
The EN8190 HD H.264 VCM can encode one high definition video input.
The video input signal is processed in to a compressed encoded bit-stream in accordance with the H.264 specification (ITU-T H.264
or ISO/IEC MPEG4 AVC).
A constant bit rate (CBR) output can be produced and may be set to between 1Mbps and 25 Mbps, depending upon the configured
encoding profile. The card can also produce a variable bit rate output when operating as part of a Reflex statistical multiplexing
system.
Video Compression Functionality
The following is a summary of the Video Compression functionality available from the EN8190 HD H.264 VCM.
Test Patterns
The video pre-processor has the facility to generate a
test pattern
.
Loss of Video Input
On loss of video input, the HD H.264 VCM can be configured to select one of the default
test patterns
or a freeze frame as the
output. It is also possible to configure it to stop generating the compressed video component on loss of the video input.
Impairment Reduction
Function
Comments
MPEG-2 MP@ML encoding
See
Transport Stream Output Overview
for transport stream rates.
MPEG-2 MP@HL encoding
Variable Seamless Mode
Support for a constant bit rate mode
Support for current reflex mode (look ahead
mode 4)
Video Input 720x576, 25 Hz
Video Input 720x480, 29.97 Hz
Video Input 1080x1920, 25/29.97 Hz
Video Input 720x1280, 50/59.94 Hz
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