Advanced Micro Peripherals' new MPEG4000WA is a multi-format video encoder, which combines graphics overlay, motion detection, and enhanced watermark authentication on the PC/104-Plus module. The device captures and compresses up to four concurrent live analogue video inputs to full D1 resolution using either MPEG-4, MPEG-2, or M-JPEG encoding standards. The device can also encode audio for each video channel. It can decompress and play back recordings from storage to display, and offers an additional incoming live video path for simultaneous preview on the host screen.
Digital watermark authentication technology assures users that the recorded data is protected from unauthorised tampering, modification, or editing. It uses a patented digital watermarking algorithm, which is classed as sensitive, making any attempted interference with the data immediately evident during playback. The algorithm is sensitive to most image manipulation operations including scaling, cropping, frame removal and insertion, and macroblock swapping. Detection of spatial and temporal tampering is also possible.
For digital video recorder and video streaming applications, the device enables full bit mapped graphics overlay with several levels of alpha-blending to be combined with the live video for both preview and compression. The device also supports motion detection (based on a defined region of interest) along with a ‘baby-sitting' mode, which can be used to control the recording process based on detected activity. With the supplied SDK, user defined data such as camera identification, date, time, and location data is easily added to the video image.
The device is supported by a suite of drivers for embedded PC-based Windows XP/XP Embedded and Linux systems. The standard video recording SDK and sample applications are supplied free with the board. The company also offers a video streaming SDK enabling compressed video to be streamed in real-time over an IP network. The device is available as both commercial and extended temperature (-40 to +85ºC) range variants, and may also be supplied with conformal coating for defence and industrial applications.
