CN103501457B - The method and apparatus that a kind of program is play - Google Patents
The method and apparatus that a kind of program is play Download PDFInfo
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- CN103501457B CN103501457B CN201310441502.3A CN201310441502A CN103501457B CN 103501457 B CN103501457 B CN 103501457B CN 201310441502 A CN201310441502 A CN 201310441502A CN 103501457 B CN103501457 B CN 103501457B
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Abstract
The embodiment of the present invention provides the method and apparatus that a kind of program is play, the method comprise the steps that the transmission flow data of receiving front-end server transport, carrying program data group character in described transmission flow data, the mode of the transmission flow data receiving the transmission of described front-end server is part reception mode；According to the program data group character that described transmission flow data carries, described transmission flow data is carried out soft parsing and decoding, obtain the program audio video data for playing；Play described program audio video data.The embodiment of the present invention can preferably by received terrestrial digital broadcasting class service operation in intelligent mobile terminal system platform, do not increase hardware cost.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to the method and apparatus that a kind of program is play.
Background technology
The operation of multiple application software can be supported, it is possible to make in the system platform of the intelligent mobile terminals such as mobile phone
The life of people is more convenient, diversified, therefore increasing developer proceeds by and puts down based on intelligence system
Exploitation on platform, wherein, by received terrestrial digital broadcasting class service operation in intelligent mobile terminal system platform also
Being an important content of current research, prior art proposes a kind of practicable scheme to this, directly will pass
Software and hardware in system Set Top Box supports that scheme is transplanted in Android system mobile terminal, makes have Android system and puts down
The mobile terminal of platform can support that the reception of received terrestrial digital broadcasting class business and program are play.
The method of prior art needs mobile terminal to increase new hardware, and the open effective JAVA of encapsulation connects
Mouthful, the problem that product early development and later maintenance can be increased；Secondly as prior art is by passing
The system set-top box platform scheme directly transplanting past, this represents the interface in technical scheme is also according to tradition electricity
There is provided depending on business and control interface, then also code will be brought the openest and the communication of platform supplier
Etc. problem, during developing and safeguarding, limit the motility of software application.
Summary of the invention
Embodiments provide the method and apparatus that a kind of program is play, can be preferably wide by ground digital
Multicast service operates in intelligent mobile terminal system platform, does not increase hardware cost, has motility.
Concrete, the embodiment of the present invention provides a kind of method that program is play, and it comprises the steps that
The transmission flow data of receiving front-end server transport, carries program data packet in described transmission flow data
Mark, the mode of the transmission flow data receiving the transmission of described front-end server is part reception mode；
According to the program data group character that described transmission flow data carries, described transmission flow data is carried out soft solution
Analysis and decoding, obtain the program audio video data for playing；
Play described program audio video data.
It is also preferred that the left the program data group character carried according to described transmission flow data is to described transmission flow data
Carry out soft parsing and decoding, obtain including for the program audio video data play:
According to the soft parsing of described program data group character described transmission flow data, obtain basic flow data and sound
Video decoding group character；
According to described audio/video decoding group character, described basic flow data is decoded, obtains for playing
Described program audio video data.
It is also preferred that the left according to the soft parsing of described program data group character described transmission flow data, substantially flowed
Data and program audio/video decoding group character include:
Remove the redundancy of described transmission flow data, and invalid data；
By described program data group character from eliminating described in described redundancy and described invalid data
Transmission flow data obtains basic flow data；
Judge whether described basic flow data comprises Program Map Table；
If judging, described basic stream packets containing Program Map Table, then obtains institute from described Program Map Table
State audio/video decoding group character；
If judging, described basic flow data does not comprise Program Map Table, then according to the base of regulation in packing agreement
This code stream type analysis goes out described audio/video decoding group character.
Include it is also preferred that the left play described audio, video data:
Obtain and play record；
If having got described broadcasting record, then play corresponding to the described programme information play and record in record
Program audio video data；
If not getting described broadcasting record, then searching programs list, and play in described the rendition list and comprise
The program audio video data corresponding to top line information.
Correspondingly, a kind of equipment that the embodiment of the present invention provides, it is characterised in that including:
Receiver module, takes in the transmission flow data of receiving front-end server transport, described transmission flow data
Band program data packet stream, the mode of the transmission flow data receiving the transmission of described front-end server connects for part
Debit's formula；
Soft parsing and decoder module, carry for the described transmission flow data received according to described receiver module
Program data group character described transmission flow data is carried out soft parsing and decoding, obtain for play joint
Mesh audio, video data；
Playing module, for the described program audio video data playing described soft parsing and decoder module obtains.
It is also preferred that the left described soft parsing and decoder module include:
Soft resolution unit, for according to the soft parsing of described program data group character described transmission flow data, obtains
To basic flow data and audio/video decoding group character；
Decoding unit, for the described audio/video decoding group character pair parsed according to described soft resolution unit
Described basic flow data is decoded, and obtains the described program audio video data for playing.
It is also preferred that the left described soft resolution unit includes:
Remove subelement, for removing the redundancy of described transmission flow data, and invalid data；
Soft parsing obtains subelement, for being believed from eliminating described redundancy by described program data group character
The described transmission flow data of breath and described invalid data obtains basic flow data；
Judgment sub-unit, is used for judging whether described basic flow data comprises Program Map Table；It is additionally operable to judge
When going out described basic stream packets containing Program Map Table, generate and obtain prompting message and send to obtaining subelement；
It is additionally operable to judge when described basic flow data does not comprises Program Map Table, generates and analyze prompting message and send
To analyzing subelement；
Obtain subelement, after receiving the described acquisition prompting message that described judgment sub-unit sends, from
Described Program Map Table obtains described audio/video decoding group character；
Analyze subelement, after receiving the described analysis prompting message that described judgment sub-unit sends, root
Described audio/video decoding group character is gone out according to the elementary stream type analysis of regulation in packing agreement.
It is also preferred that the left described playing module includes:
Play acquiring unit, be used for obtaining broadcasting record；When being additionally operable to get described broadcasting record, generate
First play cuing information and sending is to broadcast unit, and described first play cuing message is carried described broadcasting and remembered
The programme information of record in record；When being additionally operable to fail to get described broadcasting record, generate Search Hints message
And send to search unit；
Broadcast unit, after receiving the described first play cuing message that described broadcasting acquiring unit sends,
Play the described program audio video data corresponding to programme information play and record in record；
Search unit, after receiving the described Search Hints message that described broadcasting acquiring unit sends, searches
Rope the rendition list；It is additionally operable to generate the second play cuing information and sending to described broadcast unit, described second
Play cuing message carries the top line information comprised in described the rendition list；
Described broadcast unit, is additionally operable to receive the described second play cuing message that described search unit sends
After, play the program audio video data corresponding to top line information comprised in described the rendition list.
The embodiment of the present invention can preferably by received terrestrial digital broadcasting class service operation in intelligent mobile terminal system
On platform, do not increase hardware cost, there is motility.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, will make required in embodiment below
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be the one of the embodiment of the present invention
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to these accompanying drawings.
Fig. 1 is an embodiment schematic flow sheet of the method for the program broadcasting of the present invention；
Fig. 2 is an example structure composition schematic diagram of the equipment of the present invention；
Fig. 3 is another example structure composition schematic diagram of the equipment of the present invention；
Fig. 4 is an example structure composition schematic diagram of the equipment of the present invention.
Fig. 5 is another example structure composition schematic diagram of the equipment of the present invention；
Fig. 6 is another example structure composition schematic diagram of the equipment of the present invention；
Fig. 7 is an embodiment schematic flow sheet of the equipment of the present invention；
Fig. 8 is another embodiment schematic flow sheet of the equipment of the present invention.
Detailed description of the invention
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 carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
The mode of acquisition for mobile terminal TV service has two kinds, can pass through Conventional digital broadcast network, and
The Internet, moreover, it is achieved that TV programme are play, need will be by the hardware unit on conventional set-top box platform and soft
Part device is transplanted in mobile terminal.Hardware unit on conventional set-top box platform is transplanted to mobile terminal meeting
The hardware cost making mobile terminal increases, and, in actual applications, TV service controls the amendment of interface
But increase and limited, the most significantly by problems such as the openest communications with platform provider of code
Reduce the motility developing playout software on mobile terminal device.
The embodiment of the present invention provides a kind of method that program is play, and it comprises the steps that receiving front-end server transport
Transmission flow data, described transmission flow data carries transmission flow data group character；According to described transmission stream
The transmission flow data group character that data are carried carries out soft parsing and decoding to described transmission flow data, is used
In the audio, video data play；Play described audio, video data.The method of the embodiment of the present invention can preferably by
Received terrestrial digital broadcasting class service operation, in intelligent mobile terminal system platform, completes under part reception mode
TV programme broadcasting work, does not increase hardware cost, has motility.
Below in conjunction with the accompanying drawings and detailed description of the invention, the technical scheme of the embodiment of the present invention is described in detail.
As it is shown in figure 1, an embodiment of the method for a kind of program broadcasting of present invention offer can include following
Step:
Step S110, the transmission flow data of receiving front-end server transport.Wherein, the embodiment of the present invention receives
The main body of the transmission flow data of front-end server transmission is mobile terminal device, and the embodiment of the present invention is used
Mobile terminal has the function receiving transmission flow data from front-end server.Wherein, the biography that this step receives
Defeated flow data carries program data group character, and, this reception mode is that part receives mode.
Partly reception mode can include that ISDB-T One-Seg receives mode, receives based on ISDB-T One-Seg
The transmission flow data that mode receives does not has PAT Program Association Table (stream having do not have PAT Program Association Table,
PMT Program Map Table) so that the decoding process of prior art cannot obtain joint by PAT Program Association Table
Mesh information.Part reception mode can be received by the method for the embodiment of the present invention by the software in mobile terminal
To transmission flow data carry out resolving, decoding, and carry out program broadcasting.
Step S111, carries out soft according to the program data group character that transmission flow data carries to transmission flow data
Resolve and decoding, obtain the program audio video data for playing.This step can be specifically real by following steps
Execute: according to program data group character soft analyzing atransmission stream data, obtain basic flow data and audio/video decoding
Group character；According to audio/video decoding group character, basic flow data is decoded, obtains for broadcasting
Program audio video data.
In implementing, according to program data group character soft analyzing atransmission stream data, obtain basic flow data
The redundancy removing transmission flow data, and invalid data is comprised the steps that with audio/video decoding group character；
Obtained from the transmission flow data eliminating redundancy and invalid data substantially by program data group character
Flow data；Judge whether basic flow data comprises Program Map Table；If judging, basic stream packets is containing program
Mapping table, then obtain audio/video decoding group character from Program Map Table；If judging basic flow data not
Comprise Program Map Table, then go out audio/video decoding according to the elementary stream type analysis of regulation in packing agreement and divide
Group mark.
Transmission flow data under partly reception mode may be increased by auxiliary information, increases after the most each TS bag
Several bytes, so first having to the auxiliary information filtering according to these bytes to fall invalid TS bag, remove simultaneously
The effectively auxiliary information after TS bag, thus outputting standard TS stream.Then, can refer to the flow chart institute of Fig. 7
The method shown, according to sync byte (0x47) and error of transmission flag bit on TS packet header
(transport_error_indicator) remove the invalid TS bag in TS stream further, obtain eliminating redundancy
The transmission flow data of information and invalid data.
By the program data group character PID of transmission flow data from eliminating redundancy and invalid data
Transmission flow data obtains basic flow data ES.Wherein, basic flow data ES includes that the most decoded sound regards
Frequency evidence, obtaining basic flow data ES need to be from the aforementioned transmission flow data eliminating redundancy and invalid data
Middle extraction is with the PID of the transmission flow data of the program that need to play, by the audio frequency and video packetized elementary stream of this program
PES(includes audio frequency PES and video PES) extract after carry out the acquisition of basic flow data ES.
The transmission flow data received under partly reception mode may comprise Program Map Table, when the biography received
When defeated stream packets is containing Program Map Table, acquisition audio/video decoding group character from Program Map Table, wherein,
Audio/video decoding group character is the coding type of audio frequency and video, decoding auxiliary information etc..Under partly reception mode
The transmission flow data received does not comprises Program Map Table, reflects when the transmission flow data received does not comprises program
During firing table, audio/video decoding group character can be gone out according to the elementary stream type analysis of regulation in packing agreement.
As, when the One-Seg source data received does not has pat table, can be according to the fixing sequence of transmission flow data
Number (PID of TS bag) 0x1fc8 filters out pmt table, and then obtains audio/video decoding group character；If
PID is that the TS bag of 0x1fc8 does not exists, i.e. pmt table does not exists, then to advise according in MPEG-2 agreement
The type of fixed PES carrys out but partial video, and then obtains audio/video decoding group character.
Audio/video decoding group character and basic flow data is obtained by above-mentioned part analysis step,
Carry out the decoding of basic flow data.Basic flow data obtained above can be stored in the data buffer area of mobile terminal
As intermediate data, with to be called.
Due in the mobile terminal that the embodiment of the present invention uses with the audio frequency and video for processing basic flow data
Decoding players, therefore can directly use the basic stream that aforementioned parsing obtains by the decoding players in mobile terminal
Decoding data and broadcasting.In implementing, according to audio/video decoding group character, basic flow data is entered
Row decoding, obtains mainly being completed by following steps for the program audio video data play: pass through audio frequency and video
Decoding group character is decoded the initialization action of device；Secondly, obtain basic flow data and complete decoding,
To the program audio video data for playing.Wherein, basic flow data can be from the data buffer area of mobile terminal
Middle acquisition, while decoding, to be also sound according to the temporal information of audio, video data and decoding time jointly
The broadcasting of video provides reference synchronization.
Step S112, plays program audio video data.
Playback action starts after data decoding activity completes, and therefore audio-visual synchronization needs to refer to sound and regards
Frequently the timestamp of frame, the decoding time of audio/video frames and system time.In order to reduce mobile terminal system as far as possible
Compiler work in system, the broadcasting of program audio video data can directly use the broadcasting work in mobile terminal
Tool, such as, the broadcasting of audio frequency can be completed by OpenSLES in mobile terminal system, and the display of video can
Completed by native-window in mobile terminal system.In mobile terminal system OpenSLES according to sound channel,
The information such as frame per second, sampling width initializes audio player, then inputs PCM data by callback interface,
Whole playing process is made to run in separate threads, as the time reference of audio-visual synchronization.Show for video
The native-window shown returns native window object by Java Surface object, then passes through local window
Mouth object can input decoding data (rgb format) and render.In order to ensure video display effect and sound
Audio video synchronization, video data decoding process and display (rendering) process executed in parallel in separate threads,
Decoding process and display interprocedual can cache a frame or a few frame decoding data, thus can make frame of video
Display is not affected moment by the decoding time and is completed, thus preferably accomplishes audio-visual synchronization, it is ensured that play effect
Really.
This step is embodied as comprising the steps that record is play in acquisition；If having got broadcasting record, then broadcast
Put the program audio video data corresponding to programme information of record in record；If not getting broadcasting record, then
Searching programs list, and the program audio video corresponding to top line information comprised in broadcast program list
Data.
The embodiment of the present invention can be the figure shows at ISDB-T One-Seg in the lump with reference to the flow chart shown in Fig. 8
Carrying out the idiographic flow of audio, video data broadcasting under reception mode, it comprises the steps that
Step S810, after program starts, it is judged that the ISDB-T One-Seg played out under partly reception mode
Program recording, without program recording, then performs step S811 and performs tuning action；If mobile terminal
In have a program recording watching program under part reception mode, then by the setting of the programs in program recording for working as
Front program, performs step S813.
Step S811, searches for channel program.
Step S812, it is judged that whether the result of search is empty, wherein, if Search Results is not empty, then record
Search Results, and continue executing with step S813；If Search Results is empty, then re-executes this step and search
Platform action.
Step S813, arranges frequency point information, cuts platform.
Step S814, record actual program is history program, preserves configuration information, plays program.
In ISDB-T playing flow shown in Fig. 8, ISDB-T plays control module and mainly includes two aspects:
One is that the broadcasting of ISDB-T audio-video frequency content controls, one be ISDB-T tuning, cut platform, video record and EPG
The control of the actions such as information inquiry.For ISDB-T One-Seg live TV stream, the broadcasting of audio-video frequency content controls
Action is relatively easy, it is only necessary to beginning, tenth skill, optimizes the response time that content is play.Part II
Action control, mainly complete tuning by driving, cut platform action, and by send control information complete to regard
The actions such as frequency recording and EPG information inquiry.
Due to the particularity of ISDB-T One-Seg program stream, compared to prior art, the embodiment of the present invention
Method simplifies some flow process of mobile terminal playing program, optimizes response time.Such as, One-Seg joint
Mesh stream do not has pat table, it is possible to skipping search pat table action, direct search is with 0x1fc8 as PID
Pmt table, therefrom determine the program audio/video decoding group character such as the PID of audio/video flow, type of coding letter
Breath.It addition, in regulation One-Seg program stream, Video coding type is H264 in ISDB-T agreement, audio frequency
Type of coding is MPEG4AAC, can be thus initialization procedure and the PMT of the decoder of mobile terminal
Table hunting action executed in parallel, thus reduce response time.
The method that the program that the embodiment of the present invention provides is play provides the method that software resolves, and uses shifting simultaneously
In dynamic terminal with decoder and player be decoded and play, it is achieved that before not increasing hardware unit
Put, complete to play under part reception mode program.The method of the embodiment of the present invention can process does not carries joint
Mesh tables of data, the transmission flow data of Program Map Table, enhance data-handling capacity；Directly use mobile whole
Decoder in end is decoded, reduce development difficulty, it is to avoid necessity that hardware unit adds, and improves
The suitability of the decoder of mobile terminal；The method of the embodiment of the present invention is preferably by received terrestrial digital broadcasting class
Service operation, in intelligent mobile terminal system platform, does not increase hardware cost, has motility.
Correspondingly, the embodiment of the present invention also provides for a kind of equipment and plays for program, and it comprises the steps that reception mould
Block, carries program data in the transmission flow data of receiving front-end server transport, described transmission flow data
Group character, does not carry Program Association Table in described transmission flow data；Soft parsing and decoder module, for root
The program data group character that the described transmission flow data received according to described receiver module carries is to described transmission
Flow data carries out soft parsing and decoding, obtains the program audio video data for playing；Playing module, is used for
Play described soft parsing and described program audio video data that decoder module obtains.The embodiment of the present invention provides
Equipment can preferably by received terrestrial digital broadcasting class service operation in intelligent mobile terminal system platform, do not increase
Hardware cost, has motility.Wherein, the entity of the equipment of the embodiment of the present invention can be mobile terminal.
Below in conjunction with the accompanying drawings and detailed description of the invention, the technical scheme of device in the embodiment of the present invention is carried out in detail
Describe in detail bright.
As in figure 2 it is shown, the equipment that a kind of program that the embodiment of the present invention provides is play, it comprises the steps that reception
Module 21, soft parsing and decoder module 22 and playing module 23, can in the lump with reference to the equipment shown in Fig. 3,
The soft parsing of the embodiment of the present invention and decoder module 22 can further include soft resolution unit 221 and decoding
Unit 222, soft resolution unit 221 can further include removal subelement 2211, soft parsing obtains son
Unit 2212, judgment sub-unit 2213, acquisition subelement 2214 and analysis subelement 2215, playing module
23 can further include broadcasting acquiring unit 231, broadcast unit 232 and search unit 233, wherein:
Receiver module 21, for the transmission flow data of receiving front-end server transport.Wherein, transmission flow data
In carry program data group character, receiving front-end server transport transmission flow data mode for part connect
Debit's formula.
Soft parsing and decoder module 22, take for the described transmission flow data received according to described receiver module
The program data group character of band carries out soft parsing and decoding to described transmission flow data, obtains for broadcasting
Program audio video data.Wherein, soft parsing and decoder module 22 can be conciliate by the softest resolution unit 221
Code unit 222 realizes soft parsing and decoding.
As it is shown on figure 3, soft resolution unit 221 by remove subelement 2211, soft resolve obtain subelement 2212,
Judgment sub-unit 2213, acquisition subelement 2214 and analysis subelement 2215, it is achieved divide according to program data
Group identifies soft analyzing atransmission stream data, obtains basic flow data and audio/video decoding group character, by these
Subelement, soft resolution unit 221 can form a kind of software resolver, and it is exclusively used under part reception mode and connects
The parsing of the transmission flow data received.Can in the lump with reference to soft resolution unit schematic diagram in the equipment shown in Fig. 5,
Wherein:
Remove subelement 2211, for the data received being carried out the removal of redundancy and invalid data.
Soft resolve obtain subelement 2212, for by program data group character from eliminate redundancy and
The transmission flow data of invalid data obtains basic flow data.
Judgment sub-unit 2213, is used for judging whether basic flow data comprises Program Map Table；It is additionally operable to judge
When going out basic stream packets containing Program Map Table, generate and obtain prompting message and send to obtaining subelement 2214；
It is additionally operable to judge when basic flow data does not comprises Program Map Table, generates and analyze prompting message and send to dividing
Analysis subelement 2215.
Obtain subelement 2214, after receiving the acquisition prompting message that judgment sub-unit 2213 sends, from
Program Map Table obtains audio/video decoding group character.Wherein, audio/video decoding group character is audio frequency and video
Coding type, decoding auxiliary information etc..
Analyze subelement 2215, after receiving the analysis prompting message that judgment sub-unit 2213 sends, root
Audio/video decoding group character is gone out according to the elementary stream type analysis of regulation in packing agreement.
Decoding unit 222, for the audio/video decoding group character that parses according to soft resolution unit 221 to base
This flow data is decoded, and obtains the program audio video data for playing.Wherein, decoding unit 222 is
It is decoded based on the decoder comprised in equipment, it is not necessary to add other software and hardware device.
Playing module 23, for the program audio video data playing soft parsing and decoder module 22 obtains.Can one
And with reference to playing module structural representation in the equipment shown in Fig. 6, playing module 23 is play for audio frequency and regards
Frequency is play, and is realized the work such as video parameter adjustment by the playing device in equipment, to ensure result of broadcast.
The described playing module 23 of the embodiment of the present invention can further include:
Play acquiring unit 231, be used for obtaining broadcasting record；When being additionally operable to get broadcasting record, generate the
One play cuing information and sending is to broadcast unit 232, and wherein, the first play cuing message carries described broadcasting
The programme information of record in record；When being additionally operable to fail to get broadcasting record, generate Search Hints message also
Send to search unit 233；
Broadcast unit 232, after receiving the first play cuing message playing acquiring unit 231 transmission,
Play the program audio video data corresponding to programme information of record in record；
Search unit 233, after receiving the Search Hints message playing acquiring unit 231 transmission, search
The rendition list；Being additionally operable to generate the second play cuing information and sending to broadcast unit 232, wherein, second broadcasts
Put prompting message and carry the top line information comprised in the rendition list；
Broadcast unit 232, after being additionally operable to receive the second play cuing message that search unit 233 sends, broadcasts
Put the program audio video data corresponding to top line information comprised in the rendition list.
The equipment of the embodiment of the present invention can also form schematic diagram with the structure shown in Fig. 4 and realize, in this figure,
Control interface by user interface to obtain the tuning of user, cut the operational order of platform, information inquiry etc., can
Realize viewing and the control of TV programme smoothly.For the transmission flow data received under part reception mode,
Such as ISDB-T One-Seg live TV stream, the broadcasting control action of audio-video frequency content is relatively easy, it is only necessary to start,
Tenth skill, optimizes the response time that content is play.For action control, mainly by driving complete tuning,
Cut platform action, and complete the action such as video record and EPG information inquiry by sending control information.
The particularity of the transmission flow data owing to receiving under part reception mode, compared to prior art, this
The method of inventive embodiments simplifies some flow process of the device plays programs such as mobile terminal, when optimizing response
Between.Such as, One-Seg program stream do not has pat table, it is possible to skip search pat table action, directly
Connect the search pmt table with 0x1fc8 as PID, therefrom determine the programs such as the PID of audio/video flow, type of coding
Audio/video decoding group character information.It addition, ISDB-T agreement specifying, in One-Seg program stream, video is compiled
Code type is H264, and audio encoding type is MPEG4AAC, can be thus the decoding of mobile terminal
The initialization procedure of device and pmt table hunting action executed in parallel, thus reduce response time.
The equipment that the embodiment of the present invention provides contains method and resolver that software resolves, uses shifting simultaneously
In dynamic terminal with decoder and player be decoded and play, it is achieved that before not increasing hardware unit
Put, complete to play under part reception mode program.The equipment that the embodiment of the present invention provides can process not to be taken
With program tables of data, the transmission flow data of Program Map Table, enhance data-handling capacity；Directly use shifting
Decoder in dynamic terminal is decoded, and reduces development difficulty, it is to avoid necessity that hardware unit adds,
Improve the suitability of the decoder of mobile terminal；The equipment that the embodiment of the present invention provides is preferably by ground number
Word broadcast type service operation, in intelligent mobile terminal system platform, does not increase hardware cost, has flexibly
Property.
Module described in the embodiment of the present invention or unit, can pass through universal integrated circuit, such as CPU
(Central Processing Unit, central processing unit), or by ASIC(Application Specific
Integrated Circuit, special IC) realize.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method,
Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating
In machine read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.
Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory,
Or random store-memory body (Random Access Memory, RAM) etc. ROM).
Above disclosed be only present pre-ferred embodiments, certainly can not with this limit the present invention it
Interest field, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment,
And according to the equivalent variations that the claims in the present invention are made, still fall within the scope that invention is contained.
Claims (4)
1. the method that a program is play, it is characterised in that including:
The transmission flow data of receiving front-end server transport, carries program in described transmission flow data
Data packet stream, the mode of the transmission flow data receiving the transmission of described front-end server is part
Reception mode；
The program data group character carried according to described transmission flow data is to described transmission fluxion
According to carrying out soft parsing and decoding, obtain the program audio video data for playing, including: according to
The soft parsing of described program data group character described transmission flow data, obtains basic flow data and sound
Video decoding group character；According to described audio/video decoding group character to described basic flow data
It is decoded, obtains the described program audio video data for playing；
Play described program audio video data；
Described according to the soft parsing of described program data group character described transmission flow data, obtain base
This flow data and program audio/video decoding group character include:
Remove the redundancy of described transmission flow data, and invalid data；
By described program data group character from eliminating described redundancy and described invalid
The described transmission flow data of data obtains basic flow data；
Judge whether described basic flow data comprises Program Map Table；
If judging, described basic stream packets contains Program Map Table, then from described Program Map Table
Middle acquisition described audio/video decoding group character；
If judging, described basic flow data does not comprise Program Map Table, then according in packing agreement
The elementary stream type analysis of regulation goes out described audio/video decoding group character.
2. the method for claim 1, it is characterised in that play described audio frequency and video number
According to including:
Obtain and play record；
If having got described broadcasting record, then play the described program letter playing record in record
Program audio video data corresponding to breath；
If not getting described broadcasting record, then searching programs list, and play described program row
The program audio video data corresponding to top line information comprised in table.
3. an equipment, it is characterised in that including:
Receiver module, for the transmission flow data of receiving front-end server transport, described transmission stream
Data are carried program data group character, receives the transmission fluxion of described front-end server transmission
According to mode be part receive mode；
Soft parsing and decoder module, for the described transmission stream received according to described receiver module
The program data group character that data are carried carries out soft parsing and decoding to described transmission flow data,
Obtain the program audio video data for playing, including: soft resolution unit, for according to described
The soft parsing of program data group character described transmission flow data, obtains basic flow data and audio frequency and video
Decoding group character；Decoding unit, for the described sound parsed according to described soft resolution unit
Described basic flow data is decoded by video decoding group character, obtains for described in broadcasting
Program audio video data；
Playing module, regards for the described program audio playing described soft parsing and decoder module obtains
Frequency evidence；
Described soft resolution unit includes:
Remove subelement, for removing the redundancy of described transmission flow data, and invalid number
According to；
Soft parsing obtains subelement, is used for by described program data group character from eliminating
State in the described transmission flow data of redundancy and described invalid data and obtain basic flow data；
Judgment sub-unit, is used for judging whether described basic flow data comprises Program Map Table；Also
During for judging described basic stream packets containing Program Map Table, generate and obtain prompting message also
Send to obtaining subelement；It is additionally operable to judge that described basic flow data does not comprise Program Map Table
Time, generate and analyze prompting message and send to analyzing subelement；
Obtaining subelement, the described acquisition prompting sent for receiving described judgment sub-unit disappears
After breath, from described Program Map Table, obtain described audio/video decoding group character；
Analyzing subelement, the described analysis prompting sent for receiving described judgment sub-unit disappears
After breath, go out described audio/video decoding according to the elementary stream type analysis of regulation in packing agreement and divide
Group mark.
4. equipment as claimed in claim 3, it is characterised in that described playing module includes:
Play acquiring unit, be used for obtaining broadcasting record；It is additionally operable to get described broadcasting record
Time, generating the first play cuing information and sending to broadcast unit, described first play cuing disappears
Breath carries the described programme information play and record in record；It is additionally operable to fail to get described broadcasting
During record, generate Search Hints information and sending to search unit；
Broadcast unit, described first sent for receiving described broadcasting acquiring unit is play and carries
After showing message, play the described program audio video corresponding to programme information play and record in record
Data；
Search unit, the described Search Hints sent for receiving described broadcasting acquiring unit disappears
After breath, searching programs list；Be additionally operable to generate the second play cuing information and sending to described in broadcast
Putting unit, described second play cuing message carries first joint comprised in described the rendition list
Mesh information；
Described broadcast unit, is additionally operable to receive described second broadcasting that described search unit sends
After prompting message, play the joint corresponding to top line information comprised in described the rendition list
Mesh audio, video data.
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| CN104244082A (en) * | 2014-09-28 | 2014-12-24 | 深圳国微技术有限公司 | Digital video broadcasting transport stream playing method and system and terminal |
| CN104902311B (en) * | 2015-05-28 | 2019-03-01 | 青岛海信宽带多媒体技术有限公司 | A kind of shared method of audio and video resources, shared gateway and system |
| CN106791938B (en) * | 2016-12-27 | 2020-02-14 | 深圳Tcl数字技术有限公司 | Method and system for playing preview program |
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