High efficient frame-accurate TS stream splicing method

Abstract

The invention discloses a high efficient frame-accurate TS stream splicing method. The method comprises: a de-multiplexing process is carried out; more particularly, de-multiplexing operation is carried out on to-be-played audio and video files in an MPEG-TS form, a TS packet is unpacked into a PES packet and the PES packet is unpacked into an ES packet, so that a video ES packet, an audio ES packet and synchronizing information are obtained, wherein the synchronizing information includes PTS / DTS information and source signs of all the audio ES packet and the video ES packet; a basic stream ES splicing process is carried out; more particularly, PTS / DTS are unifiedly regenerated for ES packets with different sources according to the synchronizing information, processing is carried out on video ES packets at different source splicing positions according to a splicing algorithm and output synchronizing information is regenerated PTS / DTS; a single program transport stream TS multiplexing process is carried out; more particularly, an empty packet is inserted to enable a code rate of the single program transport stream to be maintained to be constant; and a multiple program stream multiplexing process is carried out; more particularly, special-purpose multiplexing equipment is employed to multiplex a multipath single program transport stream into a multiple program transport stream. According to the invention, frame-accurate seamless splicing on hardware files is realized; an output quality is improved; and the method can be applied to fields having high requirements on image qualities.

Description

technical field [0001] The invention relates to video processing, in particular to a video splicing method. Background technique [0002] With the advent of the digital TV era, the filming, production, broadcasting and storage of TV programs will be digitized and networked, and streaming servers have been widely used in the broadcasting industry. The main functions of the streaming broadcast server include: 1) Playing hard disk files according to the program list; 2) Supporting hard disk file playback in multiple encoding formats; 3) Realizing related functions such as broadcast control, program list compilation, and program migration control. [0003] At present, most of the streaming broadcast servers on the market are foreign products, and the typical one is the digital video server of Enxun, which has a high market share. Its basic features are as follows: [0004] ·Multicast server that fully complies with DVB standard; [0005] Multi-channel real-time media encoding;...

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Problems solved by technology

[0015] However, the price of foreign products is relatively high, localization is not enough, and later maintenance is difficult. Due to the closed nature of these products, problems often cannot be solved

[0016] In the process of using Enxun's digital video server, I found that it has certain problems in the splicing of audio and video files. When the program is switched, sometimes there will be black and mosaic phenomena, which will affect the viewing quality. It is not suitable for the requirements of the picture. very high applications

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