Description

All popular MPEG1 and MPEG2 compression standards are supported and can be streamed onto the MOST network. To support existing VideoCD display solutions like the MOST Video module, a complete VideoCD_2.0 compliant mode is also implemented.

For MPEG2 program and transport streams, the VideoCompressor 4 MOST supports full D1 resolution for MP@ML (Main Profile at Main Level) compliance. D1 resolution refers to 720x576 pixels for PAL type signals, and 720x480 pixels for NTSC type signals. In addition, low-level SIF resolutions (352x288 / 352x240) are available.

• Adjustable picture parameters including brightness, contrast, saturation, and hue
• Support full D1 resolution (MP@ML) for MPEG2 and SIF for MPEG1/ VideoCD_2.0 
• All MOST system sample rates (Fs) from 38 to 48 kHz supported 
• The block-width is scalable from 1 up to 32 bytes per frame which is equal to a bit rate of up to 12.29 Mbits/s
• Audio MPEG1 Layer II encoding

Implemented functional blocks

There are three functional blocks available in the VideoCompressor 4 MOST:

NetBlock
This function block controls functions related to the MOST network and provides access to general information such as manufacturer specific data, version numbers, and network administration data.

LineIn / AuxiliaryInput
LineIn provides analog stereo audio input at line level. The audio signal is A/D converted to a 2x16 bit stereo data stream, which can be transported by the MOST network.

AudioVideoEncoder
This function block provides output of video stream data to the MOST network. All functions can be controlled directly via MOST network's control message service.