media base encoding

media base encoding

Proprietary DVR – Video Encoder/Decoder – Optical Ethernet Switch

Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2008)
DVRs, or Digital Video Recorders, are devices which record video to a hard drive. The term Proprietary DVR refers to exclusive methodologies used to maintain commercial control over the DVR format and prevent third party copying of a particular file. CCTV systems are used for the detection and recording of crime, but the analysts and law enforcement personnel who are required to obtain and process video recorded with proprietary DVRs may face problems using the proprietary format.
The opposite of proprietary DVR is standard or PC based DVR.
Currently there is no standard output for the security industry to follow. Because of this, analysts are forced to obtain a compatible “player” in order to view the video. Some proprietary DVRs are delivered to the end user in an executable player which allows for navigation. Some require the installation of the player. Others simply require a CODEC to be available on the system that is playing, then it will become viewable in a common player such as Windows Media.
Some proprietary DVR systems offer more than one output format, such as the native format as well as a standard format such as AVI. Some also offer an NTSC output. Some security companies are reluctant to offer anything other than their proprietary format. Reasons cited for maintaining control over the file by making it conversion proof vary, but most companies will make “tamperproof” a sellable feature, while disregarding the work required of an analyst or court in order to present the video.
Another selling point of proprietary DVR systems is compression. Video compression removes information in exchange for a smaller file size. Increasing compression leads to the ability to store longer periods on a disk, at the expense of sacrificing some of the detail in the images. This trade-off must be considered when attempting to balance image quality and recording time in a DVR. As storage drives become cheaper and larger, compression sacrifices are improving.
A problem inherent in Proprietary DVR output is accuracy. There is a good chance that the video image as viewed has an incorrect aspect ratio and/or color information. Color may be off simply due to the calibration of the monitor being used, but often color information is not recorded accurately. It is not very common to white balance security cameras unless it is done at set up. Aspect ratios may also be recorded improperly and could actually be quite distorted. Aspect ratios on some players are sometimes user adjustable by dragging the viewer in one direction or the other.
Contrary to attempts made by Proprietary DVR developers, it is possible to change virtually any DVR image into another format, but it cannot be done through digital conversion, such as changing an MPG2 to AVI. Instead it is done by intercepting the pixels sent by the proprietary DVR to the users monitor. There are a number of software available that will capture an area of a screen and generate an uncompressed file in a common format.
Gradually technology is improving and DVR systems are capable of having features that analog video could never provide. One feature is the ability to store metadata, such as point of sale information. Another feature may be for an event (movement, panic button, door/drawer opening) to trigger a system to record at a higher resolution. Perhaps the greatest feature is the ability to navigate directly to an area of interest. External links Tools For Research
G-Spot Codec Appliance
Exif Reader Samples of Proprietary DVR Players
Intellex
Rapid Eye Multi (REM)
Wavstore Waveplayer
StreamVision Free Conversion/Analysis Tools
Virtual Dub MPG
MD5 Sum Generator Additional links
StreamVision
Pentamicro
techwell
IBM Power PC 405EP
StreamScale
AVTech Surveillance
Dedicated Micros DVRs
Quest CCTV DVR’s Categories: Digital video recordersHidden categories: Articles lacking sources from February 2008 | All articles lacking sources
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I am an expert from fiber-optic-multiplexer.com, while we provides the quality product, such as Video Encoder/Decoder , Optical Ethernet Switch, pdh multiplexer,and more.

How can science of biology be brought in line with the theorems of the science of information technology?

This week new scientific findings on human genome were published. Analysis1% of the human genome have shown far more encoded functions in DNA than previously assumed. Parts previously labeled as “junk DNA” were found to be operational. Encoded information is stored in a bio-chemical media. There is a setup to copy and transcribe this information.
Theorems of information science are:
1: Information is neither matter nor energy.
2: Info is transmitted from author/sender to receiver.
3: Carrier/media is not part of information.
4: A code is an absolutely necessary condition for the representation of information.
5: The assignment of the symbol set is based on convention and constitutes a mental process.
6: Once the code has been freely defined by convention, this definition must be strictly observed thereafter.
7: The code used must be known to both transmitter and receiver if the information is to be understood.
8: Only structures based on a code can represent information.

They will never understand, life and reality just goes over the evolutionist heads. They will see one day hopefully not when it’s too late. One evolutionist’s comments I was reading said that genetics was the nail in the coffin for creationist but Jim your first answer says that genetics are baseless, so what do evolutionist stand behind. They sound a bit wishy washy to me. If something disproves their beloved theory they just dismiss the facts as things that don’t matter. God bless bro.

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