CN106162377A - The conversion method of adaptive stream media technology, device, BM-SC and terminal - Google Patents
The conversion method of adaptive stream media technology, device, BM-SC and terminal Download PDFInfo
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Abstract
The present invention provides the conversion method of a kind of adaptive stream media technology, device, BM-SC and terminal, relate to Streaming Media field, wherein conversion method includes: obtain the code stream input data of HTTP live streaming media HLS, the code stream of wherein said HLS enters data in HLS encoder, and supports same media slicing form with the code stream of dynamic self-adapting HTTP stream DASH input data；The code stream input data of described HLS are converted to the code stream input data of described DASH；Send the code stream input data of described DASH to terminal.The conversion being achieved in that between DASH and HLS and intercommunication, also realize the existing film source of multiplexing, encoder and eMBMS equipment, decrease the waste of resource.
Description
Technical field
The present invention relates to Streaming Media field, particularly relate to a kind of adaptive stream media technology conversion method,
Device, BM-SC (Broadcast multicast service center, broadcast multicast service center) and terminal.
Background technology
Dynamic media based on HTTP (Hyper Text Transfer Protocol, HTTP)
Distribution protocol develops quickly due to following many factors, has become as the master of the online multimedia service of mobile interchange
Stream protocol.1) have employed the special RTP (Real-time of generally general HTTP server and non-deployment costliness
Transport Protocol, RTP) server, can extensively utilize existing infrastructure (CDN
(Content Delivery Network, content distributing network) etc.)；2) problem not passing through fire wall；
3) can be good at meeting the impact on business for the different capable terminal dynamic adaptation network transmission.
Having multiple based on the dynamic media distribution protocol of HTTP, that relatively common is the HLS of Apple
(HTTP Live Streaming, the live streaming media of HTTP) standard and international standard DASH (Dynamic
Adaptive Streaming over HTTP, dynamic self-adapting HTTP flow).The HLS of apple is easy to use,
And due to IOS (Mobile operating system of Apple Corp, the Mobile operating system of Apple)
It (based on the mobile phone operating system of increasing income of Linux platform, is mainly used for portable equipment with Android, claims
For Android) all support this agreement in operating system, it is de facto standard at present；China Mobile's mobile video business,
Internet television business and video website are to Set Top Box, Pad (portable android device, flat board
Computer) and mobile phone terminal provide Video service when all use this agreement.DASH is MPEG (Moving
Picture Experts Group, dynamic image expert group) tissue and 3GPP (3rd Generation Partnership
Project, third generation partner program) tissue combines the international standard protocol of proposition, at present most widely
Application is the eMBMS (evolved based on LTE (Long Term Evolution, Long Term Evolution) mobile network
Multicast Broadcast Multimedia Service, enhanced multicast and broadcast multimedia service) broadcast clothes
Business, in order to ensure that business continuance (cut without perception clean culture/broadcast by player when in clean culture/broadcast switching
Change).
EMBMS broadcast service has the advantages that to use same wireless resource service a large number of users, is operator
In the intelligent pipeline ability that the 4G epoch are important.Close based on this broadcast-capable and numerous industry partner having idea
Make, colourful broadcasting service form can be explored.But currently carrying out eMBMS broadcast-capable
When encapsulation and offer video traffic, encounter a very big problem: on the one hand, eMBMS is according to the world
Current standard must use DASH as streaming media distribution agreement, and the end-to-end product of current eMBMS is also
Only support DASH standard；On the other hand, a large amount of film source of the existing network of content side requires to compile according to HLS
Code, burst and storage, it is impossible to more preferably realize the conversion between DASH and HLS and intercommunication, multiple to realize
With existing film source, encoder and eMBMS equipment, huge product development deployment, film source is not brought to turn
Code and store the wastings of resources being brought such as many parts.
Content of the invention
It is an object of the invention to provide the conversion method of a kind of adaptive stream media technology, device, BM-SC
And terminal, it is achieved the conversion between DASH and HLS and intercommunication, also realize the existing film source of multiplexing, volume
Code device and eMBMS equipment, reduce the waste of resource.
To achieve these goals, the conversion side of a kind of adaptive stream media technology that the embodiment of the present invention provides
Method, is applied to broadcast multicast service center BM-SC, and described conversion method includes:
Obtain the code stream input data of HTTP live streaming media HLS, wherein said HLS's
Code stream enters data in HLS encoder, and with dynamic self-adapting HTTP stream DASH
Code stream input data support same media slicing form；
The code stream input data of described HLS are converted to the code stream input data of described DASH；
Send the code stream input data of described DASH to terminal.
Further, described media slicing form is dynamic image experts group transport stream main frame MPEG-2
TS Main Profile media slicing form.
Further, the code stream that the described code stream input data by described HLS are converted to described DASH is defeated
Enter the step of data, comprising:
Obtain the index file form of described HLS；
Set up the transformational relation of the index file form of described HLS and the index file form of described DASH
List；
According to described transformational relation list, the index file form of described HLS is converted to described DASH's
Index file form.
Further, the described code stream input data sending described DASH are to the step of terminal, comprising:
Sent the code stream input number of described DASH by timesharing long-term evolving network TD-LTE Nentwork
According to described terminal.
To achieve these goals, the present invention also provides the conversion method of a kind of adaptive stream media technology, should
For terminal, described conversion method includes:
Receive the code stream input data of dynamic self-adapting HTTP stream DASH, wherein said
The code stream of DASH enters data to from broadcast multicast service center BM-SC, and and HTTP
The code stream input data of live streaming media HLS support same media slicing form；
The code stream input data of described DASH are converted to the code stream input data of HLS；
Code stream input data according to described HLS carry out streaming media playing.
Further, described media slicing form is dynamic image experts group transport stream main frame MPEG-2
TS Main Profile media slicing form.
Further, the described code stream input number that the code stream input data of described DASH are converted to HLS
According to step, comprising:
Obtain the index file form of described DASH；
The inverse transform setting up the index file form of described DASH with the index file form of described HLS is closed
Series of tables；
According to described inverse transform relation list, the index file form of described DASH is converted to described HLS
Index file form.
Further, the code stream input number of described reception dynamic self-adapting HTTP stream DASH
According to step, comprising:
Obtained the code stream input number of described DASH by timesharing long-term evolving network TD-LTE Nentwork
According to.
To achieve these goals, the present invention also provides the conversion equipment of a kind of adaptive stream media technology, should
For broadcast multicast service center BM-SC, described conversion equipment includes:
Acquisition module, for obtaining the code stream input data of HTTP live streaming media HLS,
The code stream of wherein said HLS enters data in HLS encoder, and passes with dynamic self-adapting hypertext
The code stream input data of transmission protocol stream DASH support same media slicing form；
First modular converter, for being converted to the code of described DASH by the code stream of described HLS input data
Stream input data；
Sending module, for sending the code stream input data of described DASH to terminal.
Further, described media slicing form is dynamic image experts group transport stream main frame MPEG-2
TS Main Profile media slicing form.
Further, described modular converter includes:
First acquisition submodule, for obtaining the index file form of described HLS；
First establishment submodule, for setting up the index file form of described HLS and the rope of described DASH
Draw the transformational relation list of file format；
Index file transform subblock, is used for the index literary composition of described HLS according to described transformational relation list
Part form is converted to the index file form of described DASH.
Further, described sending module includes:
Send submodule, described for being sent by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH give described terminal.
To achieve these goals, the present invention also provides the conversion equipment of a kind of adaptive stream media technology, should
For terminal, described conversion equipment includes:
Receiver module, for receiving the code stream input number of dynamic self-adapting HTTP stream DASH
According to, the code stream of wherein said DASH enters data to from broadcast multicast service center BM-SC, and with super
The code stream input data of text transfer protocol live streaming media HLS support same media slicing form；
Second modular converter, the code stream for the code stream of described DASH input data are converted to HLS is defeated
Enter data；
Control module, carries out streaming media playing for the code stream input data according to described HLS.
Further, described media slicing form is dynamic image experts group transport stream main frame MPEG-2
TS Main Profile media slicing form.
Further, described second modular converter includes:
Second acquisition submodule, for obtaining the index file form of described DASH；
Second establishment submodule, for setting up the index file form of described DASH and the rope of described HLS
Draw the inverse transform relation list of file format；
Index file inverse transform submodule, is used for described DASH's according to described inverse transform relation list
Index file form is converted to the index file form of described HLS.
Further, described acquisition module includes:
Obtain submodule, described for being obtained by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH.
Accordingly, the present invention provides a kind of broadcast multicast service center BM-SC, including adaptive described above
Answer the conversion equipment of stream media technology.
Accordingly, the present invention provides a kind of terminal, including the converting means of adaptive stream media technology described above
Put.
Having the beneficial effect that of the technique scheme of the present invention:
In the solution of the present invention, BM-SC broadcasting service platform is got the HLS in HLS encoder
Code stream input data, be converted to DASH code stream input data after, be finally then forwarded to terminal and carry out
Streaming media playing, so can be multiplexed existing encoder device, it is not required that carry out existing film source again
Transcoding and extra storage, can also be multiplexed the end-to-end equipment of existing eMBMS (includes chip, end simultaneously
End and BM-SC platform etc.)；Standardized packages to broadcast-capable is realized for operator, not only promotes
Industrial chain utilizes LTE MBMS (Multimedia broadcast multicast service, multimedia broadcasting
Multicast service) broadcast-capable provides business, and also the scale development promoting LTE MBMS is established
Basis.
Brief description
Fig. 1 is the system construction drawing of prior art；
The tile format schematic diagram that Fig. 2 is supported by DASH；
Fig. 3 is one of step schematic diagram of conversion method of adaptive stream media technology of the embodiment of the present invention；
Fig. 4 is one of step schematic diagram of conversion method of adaptive stream media technology of the embodiment of the present invention；
Fig. 5 is one of structural representation of conversion equipment of adaptive stream media technology of the embodiment of the present invention；
Fig. 6 is one of structural representation of conversion equipment of adaptive stream media technology of the embodiment of the present invention；
Fig. 7 is the schematic diagram of the system construction drawing of the embodiment of the present invention.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
In order to for easy reference is described in greater detail below, it should be noted that tradition as it is shown in figure 1, existing
EMBMS system architecture mainly includes content input (content source, DASH encoder), and BM-SC11 is wide
Broadcast business platform, LTE network and terminal 12 (middleware supports the encapsulation to eMBMS broadcast-capable,
Application APP).
For content providers: existing eMBMS system needs again to invest DASH encoder, and right
All the elements source carries out transcoding and again stores.
For APP developer: need newly-increased DASH processing module, (MPD is a kind of to be responsible for MPD
Video format) parsing and the process of media slicing, including dynamic code rate adaptation.
The present invention is directed to the single DASH mark of the end-to-end product support of eMBMS current in prior art
Standard, can not more preferably realize the conversion between DASH and HLS and intercommunication simultaneously, cause the wasting of resources
Problem, provides conversion method, device, BM-SC and the terminal of a kind of adaptive stream media technology, at BM-SC
Newly-increased index file conversion on broadcasting service platform carries out M3U8 (M3U8 is a kind of " video format ")
And the conversion between MPD, and select to support same media slicing form；At the middleware of end side with regard
Frequently increase an index file inverse transform between APP, the MPD receiving can be converted to M3U8,
So can be multiplexed existing encoder device, it is not required that carry out again transcoding and extra to existing film source
Storage, can also be multiplexed the end-to-end equipment of existing eMBMS (includes chip, terminal and BM-SC simultaneously
Platform etc.)；Standardized packages to broadcast-capable is realized for operator, not only promotes industrial chain and utilize
LTE MBMS broadcast-capable provides business, and the scale development promoting LTE MBMS is established
Basis.
As it is shown on figure 3, the self adaptation that the embodiment of the present invention is for broadcast multicast service center BM-SC
The conversion method of stream media technology includes:
Step 301, obtains the code stream input data of HTTP live streaming media HLS, wherein
The code stream of described HLS enters data in HLS encoder, and assists with dynamic self-adapting Hyper text transfer
The code stream input data of view stream DASH support same media slicing form；
The code stream input data of described HLS are converted to the code stream input number of described DASH by step 302
According to；
Step 303, sends the code stream input data of described DASH to terminal.
As shown in Figure 4, the conversion method of adaptive stream media technology for terminal for the embodiment of the present invention
Including:
Step 401, receives the code stream input data of dynamic self-adapting HTTP stream DASH, its
Described in the code stream of DASH enter data to from broadcast multicast service center BM-SC, and pass with hypertext
The code stream input data of transmission protocol live streaming media HLS support same media slicing form；
The code stream input data of described DASH are converted to the code stream input data of HLS by step 402；
Step 403, the code stream input data according to described HLS carry out streaming media playing.
It is briefly through after terminal and BM-SC broadcasting service platform set up and contact by network, then will
The code stream input data that the code stream input data of HLS are converted to DASH are sent to terminal, and then terminal is again
The code stream input data being converted into HLS play out.
Concrete, BM-SC broadcasting service platform is got HLS encoder (from the data of content source)
In HLS code stream input data (step 301), and be converted to DASH code stream input data (step
Rapid 302), after, last BM-SC broadcasting service platform is then forwarded to terminal and carries out streaming media playing (step
303), it follows that terminal is after the code stream receiving DASH inputs data (step 401), be converted to
Code stream input data (being the application form in order to adapt to terminal) (step 402) of HLS, last terminal root
Carry out streaming media playing (step 403) according to the code stream input data of HLS.So can be multiplexed existing volume
Code device equipment, also without carrying out again transcoding and extra storage to existing film source, can also be multiplexed existing simultaneously
The end-to-end equipment of some eMBMS (includes chip, terminal and BM-SC platform etc.)；Real for operator
The now standardized packages to broadcast-capable, not only promotes industrial chain and utilizes LTE MBMS broadcast-capable to carry
For business, and the scale development promoting LTE MBMS lays the foundation.
It can further be stated that: DASH and HLS is as adaptive stream media technology, and its agreement is all to two
Aspect is defined: index file form and media slicing data form.
Indexed file form aspect, HLS defines M3U8 file to describe the composition of each media slicing
Relation, DASH then introduces MPD and is described.Have between both data structures and be very different.
As in figure 2 it is shown, in terms of media slicing data form, HLS only supports MPEG-2TS, DASH
Then support following four frame profile.These profile are many and complicated, need not all realize in actual application,
Optional support one of which.Wherein MPEG-2TS Main Profile (Moving Picture Experts
Group Transport Stream Main Profile, the main frame of dynamic image experts group transport stream) completely corresponding
The file format requirements that HLS supports, selects to support that MPEG-2 TS Main Profile can be multiplexed current
HLS encoder and multiplexing have a large amount of film sources, are not necessarily to transcoding and store multiple backup.
The file format supported due to DASH and HLS is not all can to share, the therefore present invention
In the conversion method of adaptive stream media technology for broadcast multicast service center BM-SC for the embodiment,
Described media slicing form is dynamic image experts group transport stream main frame MPEG-2 TS Main Profile matchmaker
Body tile format.
In the conversion method of the same adaptive stream media technology for terminal, described media slicing lattice
Formula is dynamic image experts group transport stream main frame MPEG-2 TS Main Profile media slicing form.
Need in explanation above-described embodiment, owing to needing to set up the code stream input data of DASH with HLS's
The contact of code stream input data, when both have same conversion condition, then carries out the defeated of HLS again
Enter the conversion of code stream and the input code flow of DASH.
Concrete, self adaptation stream matchmaker for broadcast multicast service center BM-SC for the embodiment of the present invention
In the conversion method of body technique, step 302 includes:
Step 3021, obtains the index file form of described HLS；
Step 3022, sets up the index file form of described HLS and the index file form of described DASH
Transformational relation list；
The index file form of described HLS is converted to institute according to described transformational relation list by step 3023
State the index file form of DASH.
Realize for convenience, by the conversion (step 3023) of newly-increased index file form, and select to support
MPEG-2 TS Main Profile media slicing form, then can input conversion by the code stream being applicable to HLS
Code stream for applicable DASH inputs, thus has both been multiplexed existing encoder and film source, can be multiplexed again existing
EMBMS facility.
In the conversion method of adaptive stream media technology for terminal for the embodiment of the present invention, step 402
Including:
Step 4021, obtains the index file form of described DASH；
Step 4022, sets up the index file form of described DASH and the index file form of described HLS
Inverse transform relation list；
The index file form of described DASH is changed by step 4023 according to described inverse transform relation list
Index file form for described HLS.
By the conversion (step 4023) of newly-increased index file form, and select to support MPEG-2 TS Main
Profile media slicing form, then can input the code stream being applicable to HLS and be converted to be suitable for DASH's
Code stream inputs, thus has both been multiplexed existing encoder and film source, can be multiplexed again existing eMBMS facility.
It should be noted that above-mentioned HLS and DASH index file form mutual transformational relation list such as table 1:
In order to the code stream input data of the DASH after transmission BM-SC conversion, the embodiment of the present invention pair
In the conversion method of the adaptive stream media technology for broadcast multicast service center BM-SC, step 303
Including:
Step 3031, sends described DASH's by timesharing long-term evolving network TD-LTE Nentwork
Code stream input data give described terminal.
In the conversion method of adaptive stream media technology for terminal for the embodiment of the present invention, described step
401 include:
Step 4011, obtains described DASH's by timesharing long-term evolving network TD-LTE Nentwork
Code stream inputs data.
By the intercommunication between the real-time performance terminal of TD-LTE Nentwork and BM-SC, thus realize
The code stream input data of the DASH after transmission conversion.
As it is shown in figure 5, the embodiment of the present invention provides the conversion equipment of a kind of adaptive stream media technology, application
In broadcast multicast service center BM-SC71, wherein said conversion equipment includes:
Acquisition module 501, for obtaining the code stream input number of HTTP live streaming media HLS
According to the code stream of wherein said HLS enters data in HLS encoder, and super with dynamic self-adapting civilian
The code stream input data of this host-host protocol stream DASH support same media slicing form；
First modular converter 502, for being converted to described DASH by the code stream of described HLS input data
Code stream input data；
Sending module 503, for sending the code stream input data of described DASH to terminal.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, described media slicing form
For dynamic image experts group transport stream main frame MPEG-2 TS Main Profile media slicing form.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, described modular converter includes:
First acquisition submodule, for obtaining the index file form of described HLS；
First establishment submodule, for setting up the index file form of described HLS and the rope of described DASH
Draw the transformational relation list of file format；
Index file transform subblock, is used for the index literary composition of described HLS according to described transformational relation list
Part form is converted to the index file form of described DASH.
A newly-increased index file transform subblock is indexed the conversion of file format, and selects to support
MPEG-2 TS Main Profile media slicing form, then can input conversion by the code stream being applicable to HLS
It for the code stream input of applicable DASH, thus had not only been multiplexed existing encoder and film source, but also had been multiplexed existing
EMBMS facility.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, described sending module 503
Including:
Send submodule, described for being sent by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH give described terminal.
On BM-SC71 broadcasting service platform a newly-increased index file modular converter carry out M3U8 and
Conversion between MPD, and select to support MPEG-2 TS Main Profile media slicing form.So
One, encoder, the middleware of terminal and APP can not do any transformation, and can answer completely
Use existing code stream.
As shown in Figure 6, the embodiment of the present invention also provides the conversion equipment of a kind of adaptive stream media technology, should
For terminal, described conversion equipment includes:
Receiver module 601, for receiving the code stream input of dynamic self-adapting HTTP stream DASH
Data, the code stream of wherein said DASH enters data to from broadcast multicast service center BM-SC71, and
Support same media slicing form with the code stream of HTTP live streaming media HLS input data；
Second modular converter 602, for being converted to the code of HLS by the code stream of described DASH input data
Stream input data；
Control module 603, carries out streaming media playing for the code stream input data according to described HLS.
It is exactly briefly after terminal 72 is contacted by network foundation with BM-SC71 broadcasting service platform,
It is sent to terminal 72 by the code stream input data that the code stream of HLS input data are converted to DASH, so
The form that rear terminal 72 is then converted to be suitable for plays out.
Concrete, BM-SC71 broadcasting service platform is got HLS encoder by acquisition module 501
The code stream input data of the HLS in (from the data of content source), and through the first modular converter 502
After being converted to the code stream input data of DASH, last BM-SC71 broadcasting service platform is again by sending mould
Block 503 is sent to terminal 72 and carries out streaming media playing, it follows that terminal 72 passes through receiver module 601
After the code stream receiving DASH inputs data, then be converted to HLS's by the second modular converter 602
Code stream input data (being the application form in order to adapt to terminal 72), last terminal 72 is according to the code of HLS
Stream input data carry out streaming media playing by control module 603.So can be multiplexed existing encoder to set
Standby, also without carrying out again transcoding and extra storage to existing film source, can also be multiplexed existing simultaneously
The end-to-end equipment of eMBMS (includes chip, terminal 72 and BM-SC71 platform etc.)；For operator
Realize the standardized packages to broadcast-capable, not only promote industrial chain and utilize LTE MBMS broadcast-capable
Offer business, and the scale development promoting LTE MBMS lays the foundation.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, comprising: described media divide
Piece form is dynamic image experts group transport stream main frame MPEG-2 TS Main Profile media slicing form.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, described second modular converter
602 include:
Second acquisition submodule, for obtaining the index file form of described DASH；
Second establishment submodule, for setting up the index file form of described DASH and the rope of described HLS
Draw the inverse transform relation list of file format；
Index file inverse transform submodule, is used for described DASH's according to described inverse transform relation list
Index file form is converted to the index file form of described HLS.
In the conversion equipment of the adaptive stream media technology of further embodiment of this invention, described acquisition module 501
Including:
Obtain submodule, described for being obtained by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH.
By the conversion of newly-increased index file form, by newly-increased to DASH process, be responsible for the solution of MPD
Analysis and the process of media slicing, including dynamic code rate adaptation.
Increase an index file inverse transform block between terminal 72 side middleware and video APP, will connect
The MPD receiving is converted to M3U8.Consequently, it is possible to encoder, the middleware of terminal 72 and APP are
Any transformation can not be done, and existing code stream can be multiplexed completely.
Only carry out transformation less in BM-SC71 platform and terminal 72, the i.e. existing encoder of reusable
Equipment, do not need to carry out again transcoding and extra storage to existing film source, be multiplexed existing eMBMS end
To end equipment (including chip, terminal 72 and BM-SC71 platform etc.)；Operator is realized to broadcast
The standardized packages of ability, promotes that industrial chain utilizes LTE MBMS broadcast-capable to provide business, promote LTE
The scale development of MBMS lays the foundation.
It is corresponding as it is shown in fig. 7, the embodiment of the present invention also provides a kind of broadcast multicast service center BM-SC71,
Including the conversion equipment of above-mentioned adaptive stream media technology.
It should be noted that the conversion equipment of adaptive stream media technology that the present invention provides is to apply above-mentioned
In broadcast multicast service center BM-SC71, then the conversion equipment of above-mentioned adaptive stream media technology is all
Embodiment is all applicable to this broadcast multicast service center BM-SC71, and all can reach same or analogous and have
Benefit effect.
It is corresponding as it is shown in fig. 7, the embodiment of the present invention also provides a kind of terminal 72, including above-mentioned is adaptive
Answer the conversion equipment of stream media technology.
It due to the conversion equipment of the adaptive stream media technology of the embodiment of the present invention, is applied to terminal 72, because of
This, the embodiment of the present invention additionally provides a kind of terminal 72, wherein, turning of above-mentioned adaptive stream media technology
The described of changing device realizes that embodiment, all be applicable to the embodiment of this terminal 72, also can reach identical skill
Art effect.
As it is shown in fig. 7, send out the content source (the code stream input data form of HLS) in HLS encoder
To BM-SC71 broadcasting service platform, BM-SC71 broadcasting service platform passes through index file converter (institute
State index file converter and include index file modular converter) HLS code stream input data are converted to DASH
Code stream input data, be then sent to terminal 72 by TD-LTE Network network, terminal 72 is led to
Crossing internal index file decommutator (index file decommutator includes index file inverse transform block) will
The code stream input data that DASH code stream input data are converted to HLS carry out streaming media playing.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (18)
1. a conversion method for adaptive stream media technology, is applied to broadcast multicast service center BM-SC,
It is characterized in that, described conversion method includes:
Obtain the code stream input data of HTTP live streaming media HLS, wherein said HLS's
Code stream enters data in HLS encoder, and with dynamic self-adapting HTTP stream DASH
Code stream input data support same media slicing form；
The code stream input data of described HLS are converted to the code stream input data of described DASH；
Send the code stream input data of described DASH to terminal.
2. conversion method according to claim 1, it is characterised in that described media slicing form is
Dynamic image experts group transport stream main frame MPEG-2TS Main Profile media slicing form.
3. conversion method according to claim 1, it is characterised in that the described code by described HLS
Stream input data are converted to the step of the code stream input data of described DASH, comprising:
Obtain the index file form of described HLS；
Set up the transformational relation of the index file form of described HLS and the index file form of described DASH
List；
According to described transformational relation list, the index file form of described HLS is converted to described DASH's
Index file form.
4. conversion method according to claim 1, it is characterised in that the described DASH of described transmission
Code stream input data to the step of terminal, comprising:
Sent the code stream input number of described DASH by timesharing long-term evolving network TD-LTE Nentwork
According to described terminal.
5. a conversion method for adaptive stream media technology, is applied to terminal, it is characterised in that described
Conversion method includes:
Receive the code stream input data of dynamic self-adapting HTTP stream DASH, wherein said
The code stream of DASH enters data to from broadcast multicast service center BM-SC, and and HTTP
The code stream input data of live streaming media HLS support same media slicing form；
The code stream input data of described DASH are converted to the code stream input data of HLS；
Code stream input data according to described HLS carry out streaming media playing.
6. conversion method according to claim 5, it is characterised in that described media slicing form is
Dynamic image experts group transport stream main frame MPEG-2TS Main Profile media slicing form.
7. conversion method according to claim 5, it is characterised in that described by described DASH's
Code stream input data are converted to the step of the code stream input data of HLS, comprising:
Obtain the index file form of described DASH；
The inverse transform setting up the index file form of described DASH with the index file form of described HLS is closed
Series of tables；
According to described inverse transform relation list, the index file form of described DASH is converted to described HLS
Index file form.
8. conversion method according to claim 5, it is characterised in that described reception dynamic self-adapting
The step of the code stream input data of HTTP stream DASH, comprising:
Obtained the code stream input number of described DASH by timesharing long-term evolving network TD-LTE Nentwork
According to.
9. a conversion equipment for adaptive stream media technology, is applied to broadcast multicast service center BM-SC,
It is characterized in that, described conversion equipment includes:
Acquisition module, for obtaining the code stream input data of HTTP live streaming media HLS,
The code stream of wherein said HLS enters data in HLS encoder, and passes with dynamic self-adapting hypertext
The code stream input data of transmission protocol stream DASH support same media slicing form；
First modular converter, for being converted to the code of described DASH by the code stream of described HLS input data
Stream input data；
Sending module, for sending the code stream input data of described DASH to terminal.
10. conversion equipment according to claim 9, it is characterised in that described media slicing form is
Dynamic image experts group transport stream main frame MPEG-2TS Main Profile media slicing form.
11. conversion equipments according to claim 9, it is characterised in that described modular converter includes:
First acquisition submodule, for obtaining the index file form of described HLS；
First establishment submodule, for setting up the index file form of described HLS and the rope of described DASH
Draw the transformational relation list of file format；
Index file transform subblock, is used for the index literary composition of described HLS according to described transformational relation list
Part form is converted to the index file form of described DASH.
12. conversion equipments according to claim 9, it is characterised in that described sending module includes:
Send submodule, described for being sent by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH give described terminal.
The conversion equipment of 13. 1 kinds of adaptive stream media technology, is applied to terminal, it is characterised in that described
Conversion equipment includes:
Receiver module, for receiving the code stream input number of dynamic self-adapting HTTP stream DASH
According to, the code stream of wherein said DASH enters data to from broadcast multicast service center BM-SC, and with super
The code stream input data of text transfer protocol live streaming media HLS support same media slicing form；
Second modular converter, the code stream for the code stream of described DASH input data are converted to HLS is defeated
Enter data；
Control module, carries out streaming media playing for the code stream input data according to described HLS.
14. conversion equipments according to claim 13, it is characterised in that described media slicing form
For dynamic image experts group transport stream main frame MPEG-2TS Main Profile media slicing form.
15. conversion equipments according to claim 13, it is characterised in that described second modular converter
Including:
Second acquisition submodule, for obtaining the index file form of described DASH；
Second establishment submodule, for setting up the index file form of described DASH and the rope of described HLS
Draw the inverse transform relation list of file format；
Index file inverse transform submodule, is used for described DASH's according to described inverse transform relation list
Index file form is converted to the index file form of described HLS.
16. conversion equipments according to claim 13, it is characterised in that described acquisition module includes:
Obtain submodule, described for being obtained by timesharing long-term evolving network TD-LTE Nentwork
The code stream input data of DASH.
17. 1 kinds of broadcast multicast service center BM-SC, it is characterised in that include as claim 9 to
The conversion equipment of the adaptive stream media technology described in 12 any one.
18. 1 kinds of terminals, it is characterised in that include as described in any one of claim 13 to 16 is adaptive
Answer the conversion equipment of stream media technology.
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| CN106162377B (en) | 2019-06-21 |
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