Multi-program transport stream separating method and multi-program transport stream separating device
A transport stream, multi-program technology, applied in the direction of selective content distribution, image communication, electrical components, etc., can solve the problem of inability to separate multiple sets of programs
Inactive Publication Date: 2013-01-30
北京融合视讯科技有限公司
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However, most of the TV programs actually received are TS (Transport Stream, Transport Stream) multiplexed together by multiple programs. Currently, STB (Set Top Box, Set-Top Box) and portable multimedia playback devices are only separated from a set of programs. To play or record, the separated program is not a TS stream with complete information, it can only be played by this machine, and cannot be played by other devices or players, and it is impossible to separate multiple sets of programs
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[0048] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0049] The embodiment of the present invention aims at the problem in the prior art that the programs separated from the multi-program TS by the STB and the portable multimedia player device are not TSs with complete information, and provides a method and device for separating multi-program transport streams, which can separate multiple programs and maintain the integrity of each program transport stream.
[0050] figure 1 It is a schematic flowchart of a method for separating multi-program transport streams according to an embodiment of the present invention, such as figure 1 As shown, this embodiment includes:
[0051] Step 101: receive transport stream;
[0052] The TS contains at least one program information;
[0053] Step 102...
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The invention provides a multi-program transport stream separating method and a multi-program transport stream separating device, and belongs to the field of digital televisions. The multi-program transport stream separating method includes receiving a transport stream TS comprising information of at least one program; acquiring a transport packet identifier PID corresponding to each program from the TS, and storing the corresponding relation between each PID and the corresponding program; and separating data packets in the TS according to the corresponding relations to acquire an independent TS corresponding to each program. The independent TS of each program is stored in a buffer area corresponding to the program and comprises an audio data packet, a video data packet, a program clock reference PCR, a program association table PAT and a program mapping table PMT. According to the technical scheme, the multi-program transport stream separating method and the multi-program transport stream separating device have the advantages that the various programs can be separated, and the integrity of each program transport stream is kept.
Description
technical field [0001] The invention relates to the field of digital television, in particular to a method and device for separating multi-program transport streams. Background technique [0002] In today's increasingly digitized era, digital TV signals are ubiquitous. There is not only a demand for broadcasting TV programs, but also a large demand for recording and distribution of TV programs. However, most of the TV programs actually received are TS (Transport Stream, Transport Stream) multiplexed together by multiple programs. Currently, STB (Set Top Box, Set-Top Box) and portable multimedia playback devices are only separated from a set of programs. To play or record, the separated program is not a TS stream with complete information, it can only be played by this machine, and cannot be played by other devices or players, and it is impossible to separate multiple sets of programs. Contents of the invention [0003] The technical problem to be solved by the present inv...
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IPC IPC(8): H04N21/434
Inventor 刘三门袁堂夫邹义生
Owner 北京融合视讯科技有限公司