CN103596067A - Television program transmission method and device based on HTTP real-time steam media protocol - Google Patents
Television program transmission method and device based on HTTP real-time steam media protocol Download PDFInfo
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- CN103596067A CN103596067A CN201310626780.6A CN201310626780A CN103596067A CN 103596067 A CN103596067 A CN 103596067A CN 201310626780 A CN201310626780 A CN 201310626780A CN 103596067 A CN103596067 A CN 103596067A
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Abstract
The invention discloses a television program transmission method based on an HTTP real-time steam media protocol. The method includes the steps of preparing a slice cache with fixed data capacity, sending an index list number of the slice cache to a client according to an index file request sent by the client, and sending an image group to the client when the whole image group exists in the slice cache. The invention further discloses a television program transmission device based on the HTTP real-time steam media protocol. According to the television program transmission method and device based on the HTTP real-time steam media protocol, time delay caused when television live programs are transmitted through an HLS protocol can be reduced, and user experience is improved.
Description
Technical field
The present invention relates to the communications field (technology), relate in particular to a kind of TV program transmission method and device based on HTTP real-time stream media protocol.
Background technology
Development along with computer and network technology, Intelligent set top box replaces conventional digital Set Top Box gradually, become control and the service centre of family multi-media, a kind of conventional scheme is that Intelligent set top box is as Sharing Center of family at present, make user watch TV programme by intelligent terminal, thereby needn't be confined to watch program before TV.Intelligent set top box and intelligent terminal can carry out streaming media by HLS agreement, HLS (HTTP Living Streaming) is the real time streaming agreement based on HTTP, whole Media Stream can be divided into the one by one little program data stream based on HTTP and transmit.Yet by HLS protocol transmission live telecast program, can produce time delay, thereby affect user, experience.
Summary of the invention
Technical problem to be solved by this invention is, a kind of TV program transmission method and device based on HTTP real-time stream media protocol is provided.Can reduce by the time delay of HLS protocol transmission live telecast program, thereby promote user, experience.
In order to solve the problems of the technologies described above, on the one hand, embodiments of the invention provide a kind of TV program transmission method based on HTTP real-time stream media protocol, comprising:
Prepare the section buffer memory of fixed data capacity;
The index file request sending according to client, is sent to client by the index column table number of described section buffer memory;
While having a complete groups of pictures in described section buffer memory, described groups of pictures is sent to described client.
On the other hand, embodiments of the invention provide a kind of TV programme transmitting device based on HTTP real-time stream media protocol, comprising:
Preparation module, for preparing the section buffer memory of fixed data capacity;
Sending module, the index file request for sending according to client, is sent to client by the index column table number of described section buffer memory;
Described sending module also when having a complete groups of pictures when described section buffer memory, is sent to described client by described groups of pictures.
By preparing the section buffer memory of fixed data capacity, can determine the size of each transmission program data stream, thereby the size of the data flow that can prior notice client need to receive has reduced the time of preparing program data stream, has reduced time delay; Take groups of pictures as transmission unit, can make client when receiving a complete groups of pictures, can start downloading and playing, reduced the time that client awaits is downloaded, thereby reduced time delay, strengthened user's experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of an embodiment of a kind of TV program transmission method based on HTTP real-time stream media protocol of the present invention;
Fig. 2 is the flow chart of another embodiment of a kind of TV program transmission method based on HTTP real-time stream media protocol of the present invention;
Fig. 3 is the structure chart of an embodiment of a kind of TV programme transmitting device based on HTTP real-time stream media protocol of the present invention.
Fig. 4 is the structure chart of another embodiment of a kind of TV programme transmitting device based on HTTP real-time stream media protocol of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In embodiments of the present invention, the system based on HLS protocol transmission can comprise the program service center of supporting HLS agreement, as Intelligent set top box; And the client that can carry out program broadcasting, as mobile phone, panel computer or notebook computer etc.
Below with reference to accompanying drawing, embodiments of the invention are described.Referring to Fig. 1, it is the flow chart of an embodiment of a kind of TV program transmission method based on HTTP real-time stream media protocol of the present invention.The method comprises the following steps.
S101, the section buffer memory of preparation fixed data capacity.
S102, the index file request sending according to client, is sent to client by the index column table number of described section buffer memory.
S103, while having a complete groups of pictures in described section buffer memory, is sent to described client by described groups of pictures.
According to an embodiment of the present invention, service end can be prepared the section buffer memory of one or more fixed data capacity, and program data stream can be take groups of pictures as unit be loaded on successively section buffer memory in.The index file request sending by obtaining client, can be according to the content generating indexes list of request, wherein, index column table number in index list is a corresponding section buffer memory of having prepared respectively, index column table number is fed back to client, client can directly find required program data stream according to the index column table number of feedback, thereby has improved the efficiency of index program data stream.Owing to being prepared as the section buffer memory of fixed data capacity, the program data stream size that can be loaded on section buffer memory is known, when section has been loaded with a complete groups of pictures in buffer memory, can groups of pictures be that unit transfers to client, wherein, the large I of groups of pictures is by accumulative total, when the data volume of the groups of pictures accumulative total sending reaches the fixed data capacity of section buffer memory, can think that program stream data in this section buffer memory is by complete transmission, client can be asked the index list of the section buffer memory of next fixed data capacity.
By preparing the section buffer memory of fixed data capacity, can determine the size of each transmission program data stream, thereby the size of the data flow that can prior notice client need to receive has reduced the time of preparing program data stream, has reduced time delay; Take groups of pictures as transmission unit, can make client when receiving a complete groups of pictures, can start downloading and playing, reduced the time that client awaits is downloaded, thereby reduced time delay, strengthened user's experience.
Optionally, the configurable many group tuner hardware of Intelligent set top box, when client is during to Intelligent set top box request electric program menu, can apply for binding one group of hardware is that program broadcasting is prepared simultaneously, many groups tuner hardware of Intelligent set top box end configuration can be corresponding different user, thereby when having reduced the time delay of live telecast program transmission, also can be many group users living broadcast of programs service is provided.
Referring to Fig. 2, it is the flow chart of another embodiment of a kind of TV program transmission method based on HTTP real-time stream media protocol of the present invention.The method mainly comprises the following steps.
S201, the section buffer memory of preparation fixed data capacity.
Wherein, service end can be prepared the section buffer memory of one or more fixed data capacity.The section buffer memory of a plurality of fixed data capacity is set, can improves the speed that program data stream loads.
S202, the index file request sending according to client, is sent to client by the index column table number of described section buffer memory.
Optionally, service end can be obtained the described index file request that described client sends; And according to described index file request, generating indexes list, wherein, an index column table number in the corresponding described index list of described section buffer memory; The described index column table number of described section buffer memory is sent to described client.
Optionally, when receive that client sends new index file request time, can resolve the program number comprising in described index file request; If the program number that described program number is corresponding with program data stream in described section buffer memory is inconsistent, empty the program data stream in described section buffer memory; Descrambling goes out program data stream corresponding to described program number comprising in the described index file request of client transmission.
S203, is sent to described client by the data capacity of described section buffer memory.
S204, take groups of pictures as unit-loaded is to cutting into slices in buffer memory by program data stream.
S205, while having a complete groups of pictures in described section buffer memory, is sent to described client by described groups of pictures.
The index file request sending by obtaining client, can be according to the content generating indexes list of request, wherein, index column table number in index list is the section buffer memory of a corresponding fixed data capacity of having prepared respectively, index column table number is fed back to client, client can directly find required program data stream according to the index column table number of feedback, thereby has improved the efficiency of index program data stream.Owing to being generated as the section buffer memory of fixed data capacity, the program data stream size that can be loaded on section buffer memory is known, while being loaded with a complete groups of pictures in the section buffer memory of fixed data capacity, can groups of pictures be that unit transfers to client, wherein, the data volume of groups of pictures can be by accumulative total, when the data volume of the groups of pictures accumulative total sending reaches the fixed data capacity of section buffer memory, can think that program stream data in this section buffer memory is by complete transmission, client can be asked the index list of the section buffer memory of next fixed data capacity.
S206, if when the remaining space of described section buffer memory is not enough to send a complete described groups of pictures, sends the data of the remaining space size of described section buffer memory, and wherein, described data form by zero.
When the data volume of the groups of pictures accumulative total sending does not reach the fixed data capacity of section buffer memory, and the remaining space of section buffer memory is while being not enough to reload a groups of pictures, now, can be by the remaining space zero filling of section buffer memory, the data of zero filling are sent to client, thereby the data that can reach the fixed data capacity that sends section buffer memory, client, after the zero filling data of remaining space, can think that the program data stream of this section buffer memory is transmitted.Meanwhile, send zero filling data, can, when client is decoded broadcasting, avoid occurring error, as play the phenomenons such as mosaic.
Optionally, the configurable many group tuner hardware of Intelligent set top box, when client is during to Intelligent set top box request electric program menu, can apply for binding one group of hardware is that program broadcasting is prepared simultaneously, many groups tuner hardware of Intelligent set top box end configuration can be corresponding different user, thereby when having reduced the time delay of live telecast program transmission, also can be many group users living broadcast of programs service is provided.
Referring to Fig. 3, it is the structure chart of an embodiment of a kind of TV programme transmitting device based on HTTP real-time stream media protocol of the present invention.This device comprises with lower module.
The first sending module 2, the index file request for sending according to client, is sent to client by the index column table number of described section buffer memory;
The second sending module 3 also when having a complete groups of pictures when described section buffer memory, is sent to described client by described groups of pictures.
According to an embodiment of the present invention, preparation module 1 can be prepared the section buffer memory of one or more fixed data capacity, and program data stream can be take groups of pictures as unit be loaded on successively section buffer memory in.The index file request sending by obtaining client, can be according to the content generating indexes list of request, wherein, index column table number in index list is a corresponding section buffer memory of having prepared respectively, index column table number is sent to client by sending module 2, client can directly find required program data stream according to the index column table number sending, thereby has improved the efficiency of index program data stream.Owing to being prepared as the section buffer memory of fixed data capacity, the program data stream size that can be loaded on section buffer memory is known, while being loaded with a complete groups of pictures in buffer memory, can groups of pictures be that unit is sent to client by the second sending module 3, wherein, the data volume of groups of pictures can be by accumulative total, when the data volume of the groups of pictures accumulative total sending reaches the fixed data capacity of section buffer memory, can think that program stream data in this section buffer memory is by complete transmission, client can be asked the index list of the section buffer memory of next fixed data capacity.
By preparing the section buffer memory of fixed data capacity, can determine the size of each transmission program data stream, thereby the size of the data flow that can prior notice client need to receive has reduced the time of preparing program data stream, has reduced time delay; Take groups of pictures as transmission unit, can make client when receiving a complete groups of pictures, can start downloading and playing, reduced the time that client awaits is downloaded, thereby reduced time delay, strengthened user's experience.
Optionally, the configurable many group tuner hardware of Intelligent set top box, when client is during to Intelligent set top box request electric program menu, can apply for binding one group of hardware is that program broadcasting is prepared simultaneously, many groups tuner hardware of Intelligent set top box end configuration can be corresponding different user, thereby when having reduced the time delay of live telecast program transmission, also can be many group users living broadcast of programs service is provided.
Referring to Fig. 4, it is the structure chart of another embodiment of a kind of TV programme transmitting device based on HTTP real-time stream media protocol of the present invention.Wherein, this device comprises preparation module 1, the first sending module 2, the second sending module 3, the three sending modules 4, load-on module 5, the four sending modules 6.
The first sending module 2, the index file request for sending according to client, is sent to client by the index column table number of described section buffer memory.
The first sending module 2 can comprise with lower unit.
Acquiring unit 21, the described index file request sending for obtaining described client.
Descrambling unit 24, goes out for descrambling program data stream corresponding to described program number that the described index file of client-requested comprises.
Transmitting element 26, for being sent to described client by the described index column table number of described section buffer memory.
The 3rd sending module 4, for being sent to described client by the data cached capacity of described section.
Load-on module 5, for take program data stream described groups of pictures as unit-loaded to described fixedly section buffer memory.
The second sending module 3, when having a complete groups of pictures when described section buffer memory, is sent to described client by described groups of pictures.
The index file request sending by obtaining client, can be according to the content generating indexes list of request, wherein, index column table number in index list is the section buffer memory of a corresponding fixed data capacity of having prepared respectively, index column table number is fed back to client, client can directly find required program data stream according to the index column table number of feedback, thereby has improved the efficiency of index program data stream.Owing to being generated as the section buffer memory of fixed data capacity, the program data stream size that can be loaded on section buffer memory is known, while being loaded with a complete groups of pictures in the section buffer memory of fixed data capacity, can groups of pictures be that unit transfers to client, wherein, the data volume of groups of pictures can be by accumulative total, when the data volume of the groups of pictures accumulative total sending reaches the fixed data capacity of section buffer memory, can think that program stream data in this section buffer memory is by complete transmission, client can be asked the index list of next fixing section buffer memory.
The 4th sending module 6, while being not enough to send a complete described groups of pictures for the remaining space when described section buffer memory, sends the data of the remaining space size of described section buffer memory, and wherein, described data form by zero.
When the data volume of the groups of pictures accumulative total sending does not reach the fixed data capacity of section buffer memory, and the remaining space of section buffer memory is while being not enough to reload a groups of pictures, now, can be by the remaining space zero filling of section buffer memory, the data of zero filling are sent to client, thereby the data that can reach the fixed data capacity that sends section buffer memory, client, after the zero filling data of remaining space, can think that the program data stream of this section buffer memory is transmitted.Meanwhile, send zero filling data, can, when client is decoded broadcasting, avoid occurring error, as play the phenomenons such as mosaic.
Optionally, the configurable many group tuner hardware of Intelligent set top box, when client is during to Intelligent set top box request electric program menu, can apply for binding one group of hardware is that program broadcasting is prepared simultaneously, many groups tuner hardware of Intelligent set top box end configuration can be corresponding different user, thereby when having reduced the time delay of live telecast program transmission, also can be many group users living broadcast of programs service is provided.
Device embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying performing creative labour, are appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that each execution mode can add essential general hardware platform by software and realize, and can certainly pass through hardware.Understanding based on such, the part that technique scheme contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in computer-readable recording medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in some part of each embodiment or embodiment.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The modification of doing within any spirit at above-mentioned execution mode and principle, be equal to and replace and improvement etc., within all should being included in the protection range of this technical scheme.
Claims (10)
1. the TV program transmission method based on HTTP real-time stream media protocol, comprising:
Prepare the section buffer memory of fixed data capacity;
The index file request sending according to client, is sent to client by the index column table number of described section buffer memory;
While having a complete groups of pictures in described section buffer memory, described groups of pictures is sent to described client.
2. method as claimed in claim 1, is characterized in that, described described groups of pictures is sent to described client before, also comprise:
The data capacity of described section buffer memory is sent to described client;
Program data stream be take to described groups of pictures as unit-loaded is in described section buffer memory.
3. method as claimed in claim 2, is characterized in that, described described groups of pictures is sent to described client after, also comprise:
When if the remaining space of described section buffer memory is not enough to send a complete described groups of pictures, send the data of the remaining space size of described section buffer memory, wherein, described data form by zero.
4. method as described in claim 1-3, is characterized in that, the described index file request sending according to client, is sent to client by the index column table number of described section buffer memory, comprising:
Obtain the described index file request that described client sends;
According to described index file request, generating indexes list, wherein, an index column table number in the corresponding described index list of described section buffer memory;
The described index column table number of described section buffer memory is sent to described client.
5. method as claimed in claim 4, is characterized in that, described obtain the described index file request that described client sends after, also comprise:
Resolve the program number that described index file request comprises;
If the program number that described program number is corresponding with program data stream in described section buffer memory is inconsistent, empty the program data stream in described section buffer memory;
Descrambling goes out program data stream corresponding to described program number that described index file request that client sends comprises.
6. the TV programme transmitting device based on HTTP real-time stream media protocol, comprising:
Preparation module, for preparing the section buffer memory of fixed data capacity;
The first sending module, the index file request for sending according to client, is sent to client by the index column table number of described section buffer memory;
The second sending module, when having a complete groups of pictures when described section buffer memory, is sent to described client by described groups of pictures.
7. install as claimed in claim 6, it is characterized in that, before described the second sending module, also comprise:
The 3rd sending module, for being sent to described client by the data capacity of described section buffer memory;
Load-on module, for take program data stream described groups of pictures as unit-loaded to described section buffer memory.
8. install as claimed in claim 7, it is characterized in that, after described the second sending module, also comprise:
The 4th sending module, while being not enough to send a complete described groups of pictures for the remaining space when described section buffer memory, sends the data of the remaining space size of described section buffer memory, and wherein, described data form by zero.
9. as described in claim 6-8, install, it is characterized in that, described the first sending module comprises:
Acquiring unit, the described index file request sending for obtaining described client;
Generation unit, for according to described index file request, generating indexes list, wherein, an index column table number in the corresponding described index list of described section buffer memory;
Transmitting element, for being sent to described client by the described index column table number of described section buffer memory.
10. install as claimed in claim 9, it is characterized in that, after described acquiring unit, also comprise:
Resolution unit, the program number comprising for resolving described index file request;
Empty unit, for when the described program number program number corresponding with the program data stream of described section buffer memory is inconsistent, empty the program data stream in described section buffer memory;
Descrambling unit, goes out for descrambling program data stream corresponding to described program number that described index file request that client sends comprises.
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| CN103596067B (en) | 2017-12-12 |
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