Sending end, receiving end and video transmission method and system

Abstract

The invention discloses a sending end, receiving end and a video transmission method and system. The video transmission method comprises the steps that the sending end carries out H.265 encoding on an acquired ultrahigh-definition program, an ultrahigh-definition TS is generated, and the ultrahigh-definition TS is modulated into a radio frequency signal to be sent; the receiving end demodulates and unpacks the received radio frequency signal to obtain the ultrahigh-definition program, and the ultrahigh-definition program is output to a digital television receiving end after being recorded. The transmission rate and storage capacity of the ultrahigh-definition program can be reduced through H.265 encoding. Through recording and transmitting, the video-on-demand and play-back functions of the ultrahigh-definition program can be achieved. Therefore, the problem that due to fact that the code rate of the ultrahigh-definition television program is too large, an existing VOD system does not support transmission and operation of the ultrahigh-definition program is solved.

Description

technical field [0001] The present invention relates to the technical field of video transmission, and in particular, to a transmitting end, a receiving end, and a video transmission method and system thereof. Background technique [0002] A 4K program is an ultra-high-definition program with a resolution of 4096×2160 (4K×2K) or 3840×2160 (2160P), which is 4 times the resolution of a full HD TV. A 4K source capacity is 100-140GB (1GB=1000*8Mbps). Existing ultra-high-definition programs often use H.264 encoding and are transmitted in two ways. The first is to transmit through DVB-S2 (the second generation standard of satellite digital video broadcasting), which requires high bandwidth and needs 64M / S; realizes one-way transmission, and cannot realize VOD (Video On Demand, video on demand technology) and return See other interactive business. The second is to transmit directly through CDN (Content Delivery Network). Due to the large bit rate and program capacity of ultra-hi...

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Problems solved by technology

[0003] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a sending end, a receiving end, and a video transmission method and system thereof, so as to solve the problem that the existing VOD system does not support ultra-high-definition TV because the code rate of the ultra-high-definition television program is too large. Problems of high-definition program transmission and operation

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