HD decoder that can't be ignored
2020-09-19 08:13:37
A set of high-definition monitoring system, which truly reflects the user's intuitive value lies in the high-definition display of the center image, which is inseparable from the HD decoder.
The main function of the HD decoder is to receive the HD encoded image of the front end and decode it, and then output the display to the TV wall through its various video output interfaces, such as HDMI/DVI/VGA/BNC. It is just a positive and negative process with the front-end camera. The front-end camera inputs the image for encoding; the decoder decodes and outputs the image.
Based on the implementation principle, HD decoders can be divided into two categories:
1, embedded HD decoder
The embedded HD decoder implementation principle adopts professional video and audio codec chip (DSP or SOC) and linux operating system. The software and hardware are completely integrated, which has the advantages of low cost, high performance and reliable operation for a long time. The disadvantage is that The compatibility of the three parties is poor.
2, soft decoding server
The soft decoding server implementation principle is based on the PC architecture, using intel and graphics cards, using the Windows operating system, based on the third-party SDK to complete streaming and decoding. Although it has better compatibility with third-party vendors of embedded HD decoders, it has high cost, low performance, easy poisoning, poor long-term operation reliability, SDK-based development and key technologies relying on third-party vendors, poor independence, and generally The shortcomings of the industrial computer and large space.
The main function of the HD decoder is to receive the HD encoded image of the front end and decode it, and then output the display to the TV wall through its various video output interfaces, such as HDMI/DVI/VGA/BNC. It is just a positive and negative process with the front-end camera. The front-end camera inputs the image for encoding; the decoder decodes and outputs the image.
Based on the implementation principle, HD decoders can be divided into two categories:
1, embedded HD decoder
The embedded HD decoder implementation principle adopts professional video and audio codec chip (DSP or SOC) and linux operating system. The software and hardware are completely integrated, which has the advantages of low cost, high performance and reliable operation for a long time. The disadvantage is that The compatibility of the three parties is poor.
2, soft decoding server
The soft decoding server implementation principle is based on the PC architecture, using intel and graphics cards, using the Windows operating system, based on the third-party SDK to complete streaming and decoding. Although it has better compatibility with third-party vendors of embedded HD decoders, it has high cost, low performance, easy poisoning, poor long-term operation reliability, SDK-based development and key technologies relying on third-party vendors, poor independence, and generally The shortcomings of the industrial computer and large space.
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