CN104270667A - Program switchover method and device and terminal - Google Patents
Program switchover method and device and terminal Download PDFInfo
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- CN104270667A CN104270667A CN201410510559.9A CN201410510559A CN104270667A CN 104270667 A CN104270667 A CN 104270667A CN 201410510559 A CN201410510559 A CN 201410510559A CN 104270667 A CN104270667 A CN 104270667A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
Abstract
The invention relates to the field of televisions and provides a program switchover method. The method comprises the following steps that a current program transport stream is received, the current program audio and video type information is obtained, and transport identification information of audio and video data of the current program transport stream is also obtained; when it is judged that the current program audio and video type information is the same with the last program transport stream audio and video type information, the transport identification information of the audio and video data of the current program transport stream is replaced with transport identification information of audio and video data of a last program, program mapping information of the last program is used for replacing program mapping information of a current program, and the current program transport stream obtained by replacing the transport identification information and the program mapping information is transmitted to a media player for playing. The program switchover method can directly play the current audio and video program without resetting the media player, the time for initializing a decoder is shortened, and the program switchover time is shortened.
Description
Technical field
The invention belongs to TV domain, particularly relate to a kind of program switching method, device and terminal.
Background technology
Digital picture communications the most extensively, is also modal application is exactly digital television broadcasting system, DVB (Digital Video Broadcasting, digital video broadcasting) establishment of standard correspondingly accelerates the large-scale application of digital television broadcasting device especially.DVB standard flows (Transport stream to forming TS after message sink coding, transmission class), multiple TS stream is carried out multiplexing formation MPTS (Multi-program transport stream again, Polymera transmission class), then transmitted by the different medium such as satellite, cable TV.
Along with popularizing of intelligent terminal, more and more need by being arranged on intelligent terminal system, as the universal media player plays digital video broadcast program in android system now.Because digital video broadcast program comprises different Voice & Video program categories, the Voice & Video type of different Voice & Video program and PMT (program map table, Program Map Table) identity code transmit bag PID (packet ID dentifier, identity code transmits bag) not identical, each switching Voice & Video program all needs reset media player, namely again from current SPTS (single program transport stream, Single Program Transport Stream) the inside PID be 0x0 TS bag in extract PAT (program association table, Program Association Table), identity code according to describing the current SPTS transmission actual program PMT found in PAT transmits bag PID, program PMT is extracted from SPTS, PMT is analyzed, obtain and transmit actual program Voice & Video ES (elementary stream, elementary stream) Data Labels code transmits bag PID and the type of Voice & Video form, and then initializing decoder.
Because initializing decoder often needs the time expending the several seconds, consuming time longer, the time that the program in existing digital television broadcasting system is switched increases greatly, causes program long for switching time.
Summary of the invention
The embodiment of the present invention provides a kind of program switching method, to shorten in digital television broadcasting system program switching time.
The invention provides a kind of program switching method, comprise the steps:
Receive actual program transmission class, obtain actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Judge that whether actual program Voice & Video type information is identical with Video type information with a upper program audio;
When judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
The present invention also provides a kind of program switching device shifter, comprising:
Transmission class converting unit, the multi-channel program transmission class for being provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit, obtains the program mapping information of a upper program;
Program category type information comparing unit, for judging that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
The present invention also provides a kind of terminal, comprise communication interface, input equipment, output equipment, it is characterized in that, described terminal also comprises program switching device shifter, described program switching device shifter is connected with described input equipment and output equipment by communication interface, and described program switching device shifter comprises:
Transmission class converting unit, the multi-channel program transmission class for being provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit, obtains the program mapping information of a upper program;
Program category type information comparing unit, for judging that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
The method that the program that the embodiment of the present invention provides switches, when judging that actual program type is identical with a upper program category, the transmission identification information that a upper program transmits Voice & Video data is replaced with by transmission identification information actual program being transmitted Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and will transmission identification information be crossed, the actual program transmission class that program mapping information is replaced is sent to media player and plays, making actual program transmit the transmission identification information of Voice & Video data and the program mapping information of actual program and a upper program, to transmit the program mapping information of the transmission identification information of Voice & Video data and a upper program identical, therefore present video and video frequency program can be play-overed without the need to the media player that resets, save the time of initializing decoder, shorten program switching time.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the program switching method that the embodiment of the present invention one provides;
Fig. 2 is the realization flow figure of the program switching method that the embodiment of the present invention two provides;
Fig. 3 is the structural representation of the program switching device shifter that the embodiment of the present invention three provides;
Fig. 4 is the structural representation of the terminal that the embodiment of the present invention four provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The method that the Voice & Video program that the embodiment of the present invention provides switches, when judging that actual program type is identical with a upper program category, making actual program transmit the transmission identification information of Voice & Video data and the program mapping information of actual program and a upper program by the mode of replacing, to transmit the program mapping information of the transmission identification information of Voice & Video data and a upper program identical, therefore present video and video frequency program can be play-overed without the need to the media player that resets, save the time of initializing decoder, shorten program switching time.
Fig. 1 shows the realization flow of the program switching method that the embodiment of the present invention one provides, and details are as follows:
In step S101, receive actual program transmission class, obtain actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data.
In embodiments of the present invention, actual program Voice & Video type information can, for what obtain from digital television signal in tuning process, also can be resolve to obtain from actual program transmission class.
As one embodiment of the invention, transmitting identification information is that identity code transmits bag PID.
In embodiments of the present invention, the identity code of actual program transmission class Voice & Video data transmits bag PID can, for what obtain from digital television signal in tuning process, also can be resolve to obtain from actual program transmission class.
In embodiments of the present invention, audio types information includes but not limited to ISO/IEC 11172 Audio, ISO/IEC 13818-3 Audio, AAC, AC3.
In embodiments of the present invention, Video type information includes but not limited to ISO/IEC 11172 Video, ISO/IEC 13818-2 Video, H264, H265, AVS, AVS+.
In step s 102, judge that whether actual program Voice & Video type information is identical with Video type information with a upper program audio, if the determination result is YES, then enters step S103; If judged result is no, then enter step S104.
In embodiments of the present invention, a upper program audio and Video type information be obtain from digital television signal in tuning process or from a upper program transmission stream resolve obtain.
In step s 103, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and transmit identification information by crossing, actual program transmission class that program mapping information is replaced is sent to media player and plays.
In embodiments of the present invention, when transmit identification information be identity code transmit bag PID time, identity code transmit bag PID be obtain from digital television signal in tuning process or from a upper program transmission stream resolve obtain.
As one embodiment of the invention, program mapping information is Program Map Table PMT.
In embodiments of the present invention, when program mapping information is Program Map Table PMT, the Program Map Table PMT using the Program Map Table PMT replacement actual program of a program specifically comprises the steps:
The Program Map Table PMT of a described upper program is packaged into one or more and transmits bag;
Because each transmission bag can only transmit at most 188 bytes, for the Program Map Table PMT comprised more than 188 bytes, Program Map Table PMT can be packaged into multiple transmission bag.
The transmission bag of the Program Map Table PMT of actual program is replaced with the transmission bag of the Program Map Table PMT of a described upper program.
Transmission bag due to the Program Map Table PMT of actual program is repetition, continues to transmit, and the transmission bag therefore using the Program Map Table PMT of the transmission bag replacement actual program of the Program Map Table PMT of a program is a cyclic process.
In step S104, export actual program transport stream and play to media player.
In DVB performance system, program audio and video type are often identical, the program switching method that the embodiment of the present invention provides, when judging that actual program Voice & Video type is identical with video type with a upper program audio, the identity code of actual program transmission class Voice & Video data is transmitted the identity code transmission bag PID that bag PID replaces with upper program transmission stream Voice & Video data, the Program Map Table PMT using a program replaces the Program Map Table PMT of actual program, and be sent to media player, bag PID is transmitted to through identity code to make media player, the actual program transmission class that Program Map Table PMT replaces is play, the identity code transmitting Voice & Video data due to actual program transmits bag PID, the identity code that PMT and a upper program actual program transmit Voice & Video data transmits and wraps PID, Program Map Table PMT is identical, without the need to resetting, media player can play-over present video and video frequency program, save the time that media player resets, and achieve the quick switching of Voice & Video program.
One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method can carry out by program the hardware that instruction is correlated with to have come, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD, flash memory disk etc.
Fig. 2 shows the realization flow of the program switching method that the embodiment of the present invention two provides, and details are as follows:
It is from the different of embodiment one, before step S101, also comprises:
Step S201, the multi-channel program transmission class provided by television network broadcast is converted to the single channel program transmission stream of actual program.
In embodiments of the present invention, the video flowing provided due to television network broadcast is multi-channel program transmission class, and the actual program transmission class that intelligent terminal is play is single channel program transmission stream, therefore need the multi-channel program transmission class provided by television network broadcast to be converted to actual program transmission class, to make the media player of intelligent terminal, it is play.
As one embodiment of the invention, the multi-channel program transmission class provided by radio data system is by the following method converted to actual program single channel program transmission stream:
According to the program selection instruction carrying actual program identification information, multi-channel program transmission class is filtered and exports Program Association Table PAT and Program Map Table PMT, and the Voice & Video data of the actual program of correspondence;
Described Program Association Table PAT and Program Map Table PMT is updated to single channel Program Association Table PAT and Program Map Table PMT, described single channel Program Association Table PAT, Program Map Table PMT and Voice & Video data are exported.Described single channel Program Association Table PAT, Program Map Table PMT and Voice & Video data are actual program transmission class.
Also comprised before step S102:
Step S202, obtains the program mapping information of a upper program.
In embodiments of the present invention, when program mapping information is Program Map Table PMT, the Program Map Table PMT of a described upper program is that extracting directly obtains in a upper program transmission stream, or obtain according to the Voice & Video type information of a upper program and the identity code transmission bag PID reconstruct of upper program transmission stream Voice & Video data.
Fig. 3 shows the structure of the program switching device shifter that the embodiment of the present invention provides, and for convenience of description, illustrate only the part relevant to the embodiment of the present invention.This device can be the unit that the software unit of condition reception device or intelligent terminal, hardware cell or soft or hard combine.
Program switching device shifter 10 comprises:
Transmission class converting unit 11, the multi-channel program transmission class provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit 12, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit 13, obtains the program mapping information of a upper program;
Program category type information comparing unit 14, judges that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit 15, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
In embodiments of the present invention, described transmission identification information is that identity code transmits bag PID, and described program mapping information is Program Map Table PMT.
In embodiments of the present invention, when transmitting identification information and being identity code transmission bag PID, data capture unit 12 comprises:
Tuning data capture unit 121, the identity code obtaining actual program Voice & Video type information and actual program transmission class Voice & Video data in tuning process from digital television signal transmits bag PID; Or
Resolution data acquiring unit 122, resolves the identity code obtaining actual program Voice & Video type information and actual program transmission class Voice & Video data and transmits bag PID from actual program transmission class.
In actual applications, tuning data capture unit 121 or resolution data acquiring unit 122 at least exist one.
In embodiments of the present invention, when program mapping information is Program Map Table PMT, program mapping information acquiring unit 13 comprises:
PMT extraction unit 131, for the Program Map Table PMT of a program on extracting directly in a upper program transmission stream; Or
PMT reconfiguration unit 132, for transmitting according to the Voice & Video type information of a upper program and the identity code of upper program transmission stream Voice & Video data the Program Map Table PMT that bag PID reconstructs a upper program.
In actual applications, PMT extraction unit 131 or PMT reconfiguration unit 132 at least exist one.
In embodiments of the present invention, when program mapping information is Program Map Table PMT, described transmission class processing unit 15 comprises:
PMT encapsulation unit 151, transmits bag PID and is packaged at least one transmission bag by the identity code of a described upper program;
Because each transmission bag can only transmit at most 188 bytes, for the Program Map Table PMT comprised more than 188 bytes, Program Map Table PMT can be packaged into multiple transmission bag.
PMT replacement unit 152, replaces the transmission bag of the Program Map Table PMT of actual program with the transmission bag of the Program Map Table PMT of a described upper program.
Transmission bag due to the Program Map Table PMT of actual program is repetition, continues to transmit, and the transmission bag therefore using the Program Map Table PMT of the transmission bag replacement actual program of the Program Map Table PMT of a program is a cyclic process.
In DVB performance system, program audio and video type are often identical, the program switching device shifter that the embodiment of the present invention provides, when judging that actual program Voice & Video type is identical with video type with a upper program audio, the identity code of actual program transmission class Voice & Video data is transmitted the identity code transmission bag PID that bag PID replaces with upper program transmission stream Voice & Video data, the Program Map Table PMT using a program replaces the Program Map Table PMT of actual program, and be sent to media player, bag PID is transmitted to through identity code to make media player, the actual program transmission class that Program Map Table PMT replaces is play, the identity code transmitting Voice & Video data due to actual program transmits bag PID, the identity code that PMT and a upper program actual program transmit Voice & Video data transmits and wraps PID, Program Map Table PMT is identical, without the need to resetting, media player can play-over present video and video frequency program, save the time that media player resets, and achieve the quick switching of Voice & Video program.
Fig. 4 shows the structure of the terminal that the embodiment of the present invention provides, and for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
Terminal comprises:
Program switching device shifter 10, is connected with communication interface 20, comprises:
Transmission class converting unit 11, the multi-channel program transmission class provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit 12, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit 13, obtains the program mapping information of a upper program;
Program category type information comparing unit 14, judges that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit 15, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
Communication interface 20 is connected with program switching device shifter 10, input equipment 30 and output equipment 40 respectively, realizes the data communication between program switching device shifter 10 and the terminal miscellaneous equipment such as input equipment 30 and output equipment 40.
Input equipment 30, is connected with communication interface 20, receives the play instruction of user and sends to communication interface 20.In embodiments of the present invention, input equipment 30 includes but not limited to, button, mouse, remote control of keyboard device etc.
Output equipment 40, is connected with communication interface 20, digital television signal that received communication interface 20 transmits, that process through program switching device shifter 10, and exports.In embodiments of the present invention, output equipment 40 includes but not limited to player, display screen, loudspeaker etc.
In embodiments of the present invention, terminal includes but not limited to intelligent television, condition reception device, network box etc.
The terminal that the embodiment of the present invention provides, when judging that actual program Voice & Video type is identical with video type with a upper program audio, the identity code of actual program transmission class Voice & Video data is transmitted the identity code transmission bag PID that bag PID replaces with upper program transmission stream Voice & Video data, the Program Map Table PMT using a program replaces the Program Map Table PMT of actual program, and be sent to media player, bag PID is transmitted to through identity code to make media player, the actual program transmission class that Program Map Table PMT replaces is play, the identity code transmitting Voice & Video data due to actual program transmits bag PID, the identity code that PMT and a upper program actual program transmit Voice & Video data transmits and wraps PID, Program Map Table PMT is identical, without the need to resetting, media player can play-over present video and video frequency program, save the time that media player resets, and achieve the quick switching of Voice & Video program.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a program switching method, is characterized in that, described method comprises the steps:
Receive actual program transmission class, obtain actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Judge that whether actual program Voice & Video type information is identical with Video type information with a upper program audio;
When judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
2. the method for claim 1, is characterized in that, before reception actual program transmission class, also comprises:
The multi-channel program transmission class provided by television network broadcast is converted to the single channel program transmission stream of actual program.
3. the method for claim 1, it is characterized in that, the transmission identification information that a program transmits Voice & Video data is replaced with at transmission identification information actual program being transmitted Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and transmit identification information by crossing, actual program transmission class that program mapping information is replaced is sent to before media player plays, also comprise:
Obtain the program mapping information of a upper program.
4. the method as described in claim 1,2 or 3, is characterized in that, described transmission identification information is that identity code transmits bag PID, and described program mapping information is Program Map Table PMT.
5. method as claimed in claim 4, is characterized in that,
Actual program Voice & Video type information is obtain from digital television signal in tuning process, or from actual program transmission class resolve obtain;
The identity code of actual program transmission class Voice & Video data transmits bag PID and obtains from digital television signal in tuning process, or to resolve from actual program transmission class and obtain.
6. method as claimed in claim 4, is characterized in that,
The Program Map Table PMT of a described upper program is that extracting directly obtains in a upper program transmission stream, or obtain according to the Voice & Video type information of a upper program and the identity code transmission bag PID reconstruct of upper program transmission stream Voice & Video data.
7. method as claimed in claim 4, is characterized in that, the Program Map Table PMT using the Program Map Table PMT replacement actual program of a program specifically comprises the steps:
The Program Map Table PMT of a described upper program is packaged at least one and transmits bag;
The transmission bag of the Program Map Table PMT of actual program is replaced with the transmission bag of the Program Map Table PMT of a described upper program.
8. a program switching device shifter, is characterized in that, described device comprises:
Transmission class converting unit, the multi-channel program transmission class for being provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit, obtains the program mapping information of a upper program;
Program category type information comparing unit, for judging that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
9. device as claimed in claim 8, is characterized in that, described transmission identification information is that identity code transmits bag PID, and described program mapping information is Program Map Table PMT.
10. program switching device shifter as claimed in claim 9, it is characterized in that, described data capture unit comprises:
Tuning data capture unit, the identity code for obtaining actual program Voice & Video type information and actual program transmission class Voice & Video data in tuning process from digital television signal transmits bag PID; Or
Resolution data acquiring unit, transmits bag PID for resolving the identity code obtaining actual program Voice & Video type information and actual program transmission class Voice & Video data from actual program transmission class.
11. program switching device shifters as claimed in claim 9, is characterized in that, described Program Map Table PMT acquiring unit comprises:
PMT extraction unit, for the Program Map Table PMT of a program on extracting directly in a upper program transmission stream; Or
PMT reconfiguration unit, for transmitting according to the Voice & Video type information of a upper program and the identity code of upper program transmission stream Voice & Video data the Program Map Table PMT that bag PID reconstructs a upper program.
12. program switching device shifters as claimed in claim 9, it is characterized in that, described transmission class processing unit comprises:
PMT encapsulation unit, is packaged at least one transmission bag for the identity code of a described upper program being transmitted bag PID;
PMT replacement unit, the transmission bag of the Program Map Table PMT of actual program replaced by the transmission bag for the Program Map Table PMT by a described upper program.
13. 1 kinds of terminals, comprise communication interface, input equipment, output equipment, it is characterized in that, described terminal equipment also comprises program switching device shifter, described program switching device shifter is connected with described input equipment and output equipment by communication interface, and described program switching device shifter comprises:
Transmission class converting unit, the multi-channel program transmission class for being provided by television network broadcast is converted to the single channel program transmission stream of actual program.
Data capture unit, receives actual program transmission class, obtains actual program Voice & Video type information, and the transmission identification information of actual program transmission class Voice & Video data;
Program mapping information acquiring unit, obtains the program mapping information of a upper program;
Program category type information comparing unit, for judging that whether actual program Voice & Video type information is identical with Video type information with a upper program audio; And
Transmission class processing unit, when judging that actual program Voice & Video type information is identical with Video type information with a upper program audio, transmission identification information actual program being transmitted Voice & Video data replaces with the transmission identification information that a upper program transmits Voice & Video data, the program mapping information using a program replaces the program mapping information of actual program, and plays being sent to media player through the actual program transmission class transmitting identification information, program mapping information is replaced.
14. terminals as claimed in claim 13, is characterized in that, described terminal is intelligent television, condition reception device or network box.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510559.9A CN104270667A (en) | 2014-09-28 | 2014-09-28 | Program switchover method and device and terminal |
| PCT/CN2014/094152 WO2016045209A1 (en) | 2014-09-28 | 2014-12-18 | Program switching method, device and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410510559.9A CN104270667A (en) | 2014-09-28 | 2014-09-28 | Program switchover method and device and terminal |
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| CN104270667A true CN104270667A (en) | 2015-01-07 |
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| CN201410510559.9A Pending CN104270667A (en) | 2014-09-28 | 2014-09-28 | Program switchover method and device and terminal |
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| CN105072463A (en) * | 2015-07-20 | 2015-11-18 | 浙江华数广电网络股份有限公司 | Instantaneous channel switching method for digital television live broadcast |
| CN105681913A (en) * | 2016-01-12 | 2016-06-15 | 青岛海信电器股份有限公司 | Multi-screen interaction method and device |
| CN108521601A (en) * | 2018-02-28 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of fast playing method and device of non-standard code stream |
| CN108924634A (en) * | 2018-07-19 | 2018-11-30 | 深圳国微视安科技有限公司 | A kind of TS stream method for quickly identifying and device |
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| CN113038150B (en) * | 2019-12-09 | 2023-09-12 | 青岛海信宽带多媒体技术有限公司 | Program switching method and device |
| CN114554256A (en) * | 2020-11-25 | 2022-05-27 | 阿里巴巴集团控股有限公司 | Media stream playing method, media stream processing method, media stream playing device, media stream processing device, and storage medium |
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| CN105072463A (en) * | 2015-07-20 | 2015-11-18 | 浙江华数广电网络股份有限公司 | Instantaneous channel switching method for digital television live broadcast |
| CN105072463B (en) * | 2015-07-20 | 2019-06-28 | 浙江华数广电网络股份有限公司 | A kind of digital TV direct instantaneously cuts platform method |
| CN105681913A (en) * | 2016-01-12 | 2016-06-15 | 青岛海信电器股份有限公司 | Multi-screen interaction method and device |
| CN105681913B (en) * | 2016-01-12 | 2019-02-19 | 青岛海信电器股份有限公司 | Multi-screen interaction method and device |
| CN108521601A (en) * | 2018-02-28 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of fast playing method and device of non-standard code stream |
| CN108521601B (en) * | 2018-02-28 | 2022-04-29 | 海信视像科技股份有限公司 | Method and device for rapidly playing non-standard code stream |
| CN108924634A (en) * | 2018-07-19 | 2018-11-30 | 深圳国微视安科技有限公司 | A kind of TS stream method for quickly identifying and device |
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| WO2016045209A1 (en) | 2016-03-31 |
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