Broadcast Video Consumption

          Consumption of video in the broadcast market means playback to display devices. In general, displays can be integrated into other equipment (video monitors, waveform analyzers, scopes, and so on) or they can be standalone display devices such as display monitors, projectors, video walls or multiviewers. Regardless of the devices, there are three basic stages: input; processing and output.

The input stage will usually accept incoming signals whether it is a standalone display or equipment with a built-in display.  The nature, number and type of inputs depends upon the intended uses.  In the broadcast production plant, inputs are likely to be baseband uncompressed digital video such as SDI, HDMI, DisplayPort or legacy analog sources coming over component, composite or S-video. Some gear may also accept input from a USB port or over a CAT 5 cable that may be connected to an Ethernet-based network.

Once an input source has been selected, video processing may be performed.  This could include de-interlacing, frame rate conversion, scaling, color correction and more.  There may often be redundant video processing blocks in the playback path.  For example, a router may have these capabilities built in, but the projector or monitor may also have these capabilities available. 

The output stage connects any processed video to the actual display drivers.  For a standalone monitor, video wall, projector, multiview display or equipment with integrated displays, this interface is usually either LVDS or its replacement, V-by-One.

An FPGA can provide nearly all of this functionality allowing display devices to be quickly designed and brought to market – with the ability to allow upgrades over the product life.  Below are available IP cores for I/O and video processing sections.

Multiviewers

Multiviewers in the broadcast industry refer to devices that are designed to monitor the audio and video at various stages in the production process.  They:

  • Accept audio and video streams
  • Processes the audio and video
  • Create graphical overlays from metadata
  • Output one or more video streams to a display

This functionality can be realized as:

  • PC cards
  • Standalone boxes
  • Integrated into other equipment such as broadcast routers or switchers

All of these capabilities are facilitated by integrating it into an Intel® FPGA. We offer the key IP building blocks needed to realize any implementation, making it easy for you to build your design.  

Monitor

The broadcast environment uses a variety of displays, including standalone LCD monitors, LCD or LED video walls, and projectors. These displays can generally accept a variety of digital and analog connection standards as shown in the diagram below. Many displays also include some form of image processing, which means functions like scaling can be done before reaching the display or done by the display itself. The choice will likely be based upon which location does a better job.

The display's video processing engine output is not formatted in a DVI, HDMI, or SDI format as with a MultiViewer, for example. Instead, it is formatted for internal transfer of the video information directly to the display itself. This is typically done with either LVDS or its replacement, V-by-One. 

You can effectively integrate all of this functionality cost effectively using an Intel® FPGA. Core IP blocks to support the integration include:

  • Core input/output IP to support DVI, DisplayPort, HDMI or SDI connectivity
  • A Video and Image Processing Intel FPGA IP with all the functionality needed to process any input video and format it as needed for output
  • V-by-One and LVDS IP

Broadcast Solution Reference Links

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