Method and device for realizing video recording at low cost based on home gateway
A home gateway and video recording technology, applied in the field of home gateway, can solve the problem of high cost of video recording and achieve the effect of expanding the scope of use
Active Publication Date: 2017-03-15
FENGHUO COMM SCI & TECH CO LTD
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Problems solved by technology
[0007] The current home gateway often includes voice call services, and the cost of video recording is relatively high
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[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0043] see figure 1 As shown, the embodiment of the present invention provides a low-cost method for realizing video recording based on a home gateway, including the following steps:
[0044] S1. The home gateway initializes the protocol stack;
[0045] S2. The home gateway parses the received SDP content;
[0046] S3. The protocol stack adds video information to the SDP fed back in the signaling;
[0047] S4, the home gateway starts RTP analysis;
[0048] S5. After the home gateway receives the RTP message from the remote end, it takes out the video code stream and the audio code stream from the RTP message, and stores them in the audio and video files;
[0049] S6. The home gateway sends the RTP video stream with a fixed picture and the RTP audio stream with a fixed sound to the remote end;
[0050] S7. After the call is releas...
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The invention discloses a method and device for achieving video recording at low cost based on a home gateway, and relates to the field of home gateways. The method includes the following steps that a protocol stack is initialized through the home gateway; the home gateway analyzes the received content of a session description protocol (SDP); the protocol stack adds video information to the SDP fed back in signals; the home gateway starts analysis of an RTP (real-time transport protocol); after receiving an RTP message sent from a far end, the home gateway extracts a video bitstream and an audio bitstream from the RTP message and stores the video bitstream and the audio bitstream in a video and audio file; the home gateway sends the RTP video bitstream with fixed frames and the RTP audio bitstream with fixed sound to the far end; after communication is released, the home gateway closes media files. By the adoption of the method and device, under the condition that hardware cost is not increased, a software module is additionally arranged in the home gateway, the application range of the home gateway is widened, and low-cost video recording services are provided for users of the home gateway.
Description
technical field [0001] The present invention relates to the field of home gateways, in particular to a low-cost video recording method and device based on home gateways. Background technique [0002] Residential Gateway Group (Residential Gateway Group) is a formal industry forum organization established in 1995. It took the lead in adopting the residential gateway to represent a centralized intelligent interface that connects the access network outside the home with the internal network of the home. Its definition of a home gateway is a simple, intelligent, standardized, and flexible interface unit for the entire home network, which can receive communication signals from different external networks and transmit signals to a certain smart device through the home network. With the introduction of the concept of home gateway, it is hoped that an effective way can be provided for integrating different external networks and enriching new applications. [0003] At present, vario...
Claims
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IPC IPC(8): H04N21/4363H04N5/76H04N21/433
Inventor 李超纯于敏王功乾覃洪清
Owner FENGHUO COMM SCI & TECH CO LTD