CN103051976A - Method, system and equipment for distributing HLS (HyperText Transfer Protocol Living Steaming) content by CDN (Content Distribute Network) - Google Patents
Method, system and equipment for distributing HLS (HyperText Transfer Protocol Living Steaming) content by CDN (Content Distribute Network) Download PDFInfo
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- CN103051976A CN103051976A CN2013100226997A CN201310022699A CN103051976A CN 103051976 A CN103051976 A CN 103051976A CN 2013100226997 A CN2013100226997 A CN 2013100226997A CN 201310022699 A CN201310022699 A CN 201310022699A CN 103051976 A CN103051976 A CN 103051976A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/563—Data redirection of data network streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format
Abstract
The invention discloses a method for distributing HLS (HyperText Transfer Protocol Living Steaming) content by a CDN (Content Distribute Network). The method comprises the following steps of: reorienting an initial content request URL (Uniform Resource Locator) as a URL carrying CID (Content Identity) of appointed content of the initial content request URL by an CDN node server, and sending the URL to a user terminal; and obtaining the appointed content of the content request URL by the CDN node server according to the CID carried by the content request URL sent by the user terminal, and sending the appointed content to the user terminal. The invention further discloses a system and equipment for distributing the HLS content by the CDN; with the adoption of the technical scheme, the problem that the user terminal fails to require a media file from the CDN is solved; and the legality of the user terminal can also be verified and the safety performance is improved.
Description
Technical field
The present invention relates to content distributing network (CDN, Content Distribute Network) technology, relate in particular to a kind of CDN distribution HTML (Hypertext Markup Language) live TV stream (HLS, HyperText Transfer ProtocolLiving Streaming) content and method, system and equipment.
Background technology
The CDN technology increases the new network architecture of one deck in existing internet (Internet), the customer rs site content is put into close user's network " edge " CDN node server, make the user can obtain easily required content, alleviated the Internet Congestion situation, improved the speed of customer rs site response user access, the business fields such as IPTV (IPTV, Internet Protocol Television), mobile flow medium and internet video have been widely used in.
At present, when based on the user terminal of HLS to the HLS content of the corresponding catalogue of CDN node server request content identity mark number (CID, Content Identity) when playing, have following problem:
User terminal is the index file of " m3u8 " to the filename suffix of the described file directory of CDN node server request at first, read described index file to obtain the media file information of described file directory, and be the media file of " ts " to the described file directory File of CDN node server request name suffix, because described CDN node server can't parse the CID of described file directory from the request for media file that described user terminal sends, and the higher level CDN node server of described CDN node server is with described CID locating file catalogue and searches the media file of user terminal requests, cause described CDN node server the request of superior CDN node server to arrive media file, play thereby user terminal can't obtain media file.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of CDN distribution HLS content and method, system and equipment, solves user terminal to the problem of CDN node server request HLS content failure.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of CDN distribution HLS content and method, described method comprises:
The CDN node server is determined the initial content request URL(uniform resource locator) (URL that user terminal sends, when the content of Uniform Resource Locator) pointing to is the HLS content, is redirected described initial content request URL and is the URL that carries the CID that described initial content request URL points to content and be sent to described user terminal;
Described CDN node server receives that described user terminal sends when carrying the content requests URL of CID, and the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal.
Preferably, described CDN node server determines that the content of the initial content request URL sensing that user terminal sends is the HLS content, comprising:
Described CDN node server is resolved the initial content request URL that described user terminal sends, if parse the HLS sign, determines that then the content of the initial content request URL sensing that user terminal sends is the HLS content.
Preferably, the CID that described CDN node server carries according to described content requests URL obtains the content of described content requests URL sensing and is sent to described user terminal, comprising:
The local content that whether has described content requests URL to point to of CID retrieval that described CDN node server carries according to described content requests URL, if having, the content that the described content requests URL that then will retrieve points to is sent to described user terminal; Otherwise superior CDN node server sends the relay request of pointing to content for described content requests URL, and the content that described higher level CDN node server is returned is sent to described user terminal.
Preferably, the CID that described CDN node server carries according to described content requests URL obtains the content of described content requests URL sensing and is sent to before the described user terminal, and described method also comprises:
The check information that described CDN node server carries according to the content requests URL of the described CID of carrying, the described user terminal of verification is the validated user terminal.
The present invention also provides a kind of CDN node server, and described CDN node server comprises: receiver module, judge module, redirection module, sending module and acquisition module; Wherein,
Described receiver module is used for receiving the initial content request URL of described user terminal transmission or the content requests URL that carries CID that described user terminal sends;
Whether described judge module is the HLS content for the content of judging the initial content request URL sensing that described receiver module receives;
Described redirection module is used in the judged result of described judge module when being, described initial content request URL is redirected URL for the CID that carries described content requests URL sensing content;
Described sending module is used for the content requests URL that carries CID that described redirection module is redirected is sent to described user terminal; The content that described acquisition module is obtained is sent to described user terminal;
Described acquisition module, be used for described receiver module receive that described user terminal sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to.
Preferably, described CDN node server also comprises:
Parsing module is used for resolving the initial content request URL that described receiver module receives;
Described judge module, judges that the content of the initial content request URL sensing that described user terminal sends is the HLS content at concrete being used for when described parsing module parses the HLS sign.
Preferably, described CDN node server also comprises:
Memory module is used for memory contents;
Described acquisition module, the concrete CID that is used for carrying according to the content requests URL that described receiver module receives retrieves the content that described content requests URL points in described memory module, and when not retrieving the content of described content requests URL sensing, generate the relay request of pointing to content for described content requests URL;
Described sending module, the content that also is used for described acquisition module is retrieved is sent to described user terminal; The relay request that described acquisition module is generated is sent to higher level CDN node server; The content that described receiver module is received is sent to described user terminal;
Described receiver module also is used for receiving the content that described higher level CDN node server returns.
Preferably, described CDN node server also comprises:
Correction verification module, the check information that the content requests URL that carries CID that is used for receiving according to described receiver module carries, whether the described user terminal of verification is the validated user terminal;
Described acquisition module, concrete being used in the check results of described correction verification module when being, the CID that provides request URL to carry according to described content obtains the content of described content requests URL sensing.
The present invention also provides a kind of HLS content delivering system, and described HLS content delivering system comprises: CDN node server and user terminal; Wherein,
Described CDN node server, when be used for determining that content that initial content request URL that user terminal sends is pointed to is the HLS content, be redirected described initial content request URL and be the URL that carries the CID that described initial content request URL points to content and be sent to described user terminal; Receive that described user terminal sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal;
Described user terminal is used for sending the initial content request URL or carrying the content requests URL of CID to described CDN node server.
Preferably, described CDN node server comprises: receiver module, judge module, redirection module, sending module and acquisition module; Each functions of modules is identical with the above.
Technical scheme provided by the present invention, described user terminal sends the content requests URL that carries CID according to the content requests URL that described CDN node server is redirected to described CDN node server request when determining described user terminal requests HLS content, so, described CDN node server can obtain content and be sent to described user terminal according to the CID that described content requests URL carries, avoided existing user terminal can't ask from CDN the problem of HLS content; And, the content requests URL that carries CID that described user terminal sends is portability user terminal check information also, so that described CDN node server is according to described check information verified users terminal legality, so the illegal content requests URL that steals the transmission of chain user terminal of maskable response has further improved security performance.
Description of drawings
Fig. 1 is the realization flow schematic diagram of CDN distribution HLS content and method of the present invention;
Fig. 2 is the composition structural representation of HLS content delivering system of the present invention;
Fig. 3 is the realization flow schematic diagram of HLS contents distribution among invention one embodiment.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is the realization flow schematic diagram of CDN distribution HLS content and method of the present invention, and as shown in Figure 1, described method comprises:
When step 101:CDN node server determines that content that initial content request URL that user terminal sends is pointed to is the HLS content, be redirected described initial content request URL and be the URL that carries the CID that described initial content request URL points to content and be sent to described user terminal;
Preferably, described CDN node server determines that the content of the initial content request URL sensing that user terminal sends is the HLS content, comprising:
Described CDN node server is resolved the initial content request URL that described user terminal sends, if parse the HLS sign, determines that then the content of the initial content request URL sensing that user terminal sends is the HLS content.
Wherein, described HLS sign by described user terminal when the initial content request URL that sends for the HLS content, be carried in the described initial content request URL, so, can whether carry whether the content that initial content request URL that HLS identifies to judge that described user terminal sends points to is the HLS content by resolving described initial content request URL.
Wherein, described CID is used for identifying the file directory of storage HLS content, and the file of described file directory storage comprises that the filename suffix is the media file of " ts " for index file and the filename suffix of " m3u8 ".
Wherein, when described user terminal sends the initial content request URL to described CDN node server, described CDN node server can be carried at HTML (Hypertext Markup Language) (HTTP with the described redirected URL that carries CID, HyperText Transfer Protocol) in 302 redirect message and be sent to described user terminal, so that the content requests URL that described SS later sends carries described CID.
For example, do you suppose that described user terminal sends the initial content request URL to described CDN node server and is: http://host/cid? authinfo=x, wherein, " cid " field is CID in the described initial content request URL, " authinfo " field is check information, then described CDN node server return index file " index.m3u8 " from CID respective file catalogue in the described initial content request URL to described user terminal before, will also send the HTTP302 redirect message to be redirected described initial content request URL as http://host/cid/index.m3u8/ to described user terminal? authinfo=x, so, will described user terminal resend content requests URL to ask index file " index.m3u8 ": http://host/cid/index.m3u8/? authinfo=x, and, when described SS later sends the media file of content requests URL take demand file name suffix as " ts ", the content requests URL of described follow-up transmission obtains by the relative path of revising among the described content requests URL that resends, for example, the content requests URL that sends during described SS later request media file " 01.ts " is: http://host/authinfo/cid/01.ts, so, the content requests URL that sends of described SS later still carries described " cid " field.
Step 102: described CDN node server receives that described user terminal sends when carrying the content requests URL of CID, and the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal.
Preferably, the CID that described CDN node server carries according to described content requests URL obtains the content of described content requests URL sensing and is sent to described user terminal, comprising:
The local content that whether has described content requests URL to point to of CID retrieval that described CDN node server carries according to described content requests URL, if having, the content that the described content requests URL that then will retrieve points to is sent to described user terminal; Otherwise superior CDN node server sends the relay request of pointing to content for described content requests URL, and the content that described higher level CDN node server is returned is sent to described user terminal.
Wherein, described CDN node server is communicated by letter by subtending port with described higher level CDN node server, when described CDN node server sends relay request to described higher level CDN node server, the CID that described higher level CDN node server carries according to described relay request locate the request of described CDN node server the file place file directory and the file that retrieves is sent to described CDN node server.
Preferably, the CID that described CDN node server carries according to described content requests URL obtains the content of described content requests URL sensing and is sent to before the described user terminal, and described method also comprises:
The check information that described CDN node server carries according to the content requests URL of the described CID of carrying, the described user terminal of verification is the validated user terminal.
Wherein, the described user terminal of described CDN node server verification is that the processing of validated user terminal is identical with user's checking treatment of existing CDN, be specially: described CDN node server reads the identification information of described user terminal from described check information, and whether the identification information of described user terminal arranged in this locality retrieval, if retrieve, determine that then described user terminal is the validated user terminal.
Wherein, the check information that the request index file that described CDN node server can send according to described user terminal or the content requests URL of media file carry, whether the described user terminal of verification is the validated user terminal, and when verification went out described user terminal and is the validated user terminal, the CID that carries according to described content requests URL obtained index file or the media file that described content requests URL points to and is sent to described user terminal.
Fig. 2 is the composition structural representation of HLS content delivering system of the present invention, and as shown in Figure 2, described system comprises: CDN node server 21 and user terminal 22; Wherein,
Described CDN node server 21, when be used for determining that content that initial content request URL that user terminal 22 sends is pointed to is the HLS content, be redirected described initial content request URL and be the URL that carries the CID that described initial content request URL points to content and be sent to described user terminal 22; Receive that described user terminal 22 sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal 22;
Described user terminal 22 is used for sending the initial content request URL or carrying the content requests URL of CID to described CDN node server 21.
Preferably, described CDN node server 21 also is used for receiving the initial content request URL of described user terminal 22 transmissions or the content requests URL that carries CID that described user terminal 22 sends; Whether the content of judging the initial content request URL sensing that receives is the HLS content; When judging content that the initial content request URL of reception points to and whether being the HLS content, described initial content request URL is redirected the URL that points to the CID of content for carrying described content requests URL; The described redirected content requests URL that carries CID is sent to described user terminal 22; Receive that described user terminal 22 sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to; The content that the described content requests URL that the described CID that carries according to content requests URL is obtained points to is sent to described user terminal 22.
Preferably, described CDN node server 21 also is used for resolving the initial content request URL that receives; When parsing the HLS sign, judge that the content of the initial content request URL sensing that described user terminal 22 sends is the HLS content.
Preferably, described CDN node server 21 also is used for memory contents; The CID that carries according to the content requests URL that receives retrieves the content that described content requests URL points in the content of storage; When not retrieving the content of described content requests URL sensing, generate for described content requests URL and point to the relay request of content and be sent to higher level CDN node server; Receive the content that described higher level CDN node server returns and be sent to described user terminal 22.
Preferably, described CDN node server 21 also is used for the check information that carries according to the described content requests URL that carries CID that receives, and whether the described user terminal of verification 22 is legal; Go out described user terminal 22 when legal in verification, the CID that carries according to described content requests URL obtains the content that described content requests URL points to.
Preferably, described CDN node server 21 comprises: receiver module 211, judge module 212, redirection module 213, sending module 214 and acquisition module 215; Wherein,
Described receiver module 211 is used for receiving the initial content request URL of described user terminal 22 transmissions or the content requests URL that carries CID that described user terminal 22 sends;
Whether described judge module 212 is the HLS content for the content of judging the initial content request URL sensing that described receiver module 211 receives;
Described redirection module 213 is used in the judged result of described judge module 212 when being, described initial content request URL is redirected URL for the CID that carries described content requests URL sensing content;
Described sending module 214 is used for the content requests URL that carries CID that described redirection module 213 is redirected is sent to described user terminal 22; The content that described acquisition module 215 is obtained is sent to described user terminal 22;
Described acquisition module 215, be used for described receiver module 211 receive that described user terminal 22 sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to.
Preferably, described CDN node server 21 also comprises:
Parsing module 216 is used for resolving the initial content request URL that described receiver module 211 receives;
Described judge module 212, judges that the content of the initial content request URL sensing that described user terminal 22 sends is the HLS content at concrete being used for when described parsing module 216 parses the HLS sign.
Preferably, described CDN node server 21 also comprises:
Memory module 217 is used for memory contents;
Described acquisition module 215, the content that the concrete CID that is used for carrying according to the content requests URL that described receiver module 211 receives points at the described content requests URL of described memory module 217 retrievals, and when not retrieving the content of described content requests URL sensing, generate the relay request of pointing to content for described content requests URL;
Described sending module 214, the content that also is used for described acquisition module 215 is retrieved is sent to described user terminal 22; The relay request that described acquisition module 215 is generated is sent to higher level CDN node server; The content that described receiver module 211 is received is sent to described user terminal 22;
Described receiver module 211 also is used for receiving the content that described higher level CDN node server returns.
Preferably, described CDN node server 21 also comprises:
Correction verification module 218, the check information that the content requests URL that carries CID that is used for receiving according to described receiver module 211 carries, whether the described user terminal 22 of verification is the validated user terminal;
Described acquisition module 215, concrete being used in the check results of described correction verification module 218 when being, the CID that provides request URL to carry according to described content obtains the content of described content requests URL sensing.
Embodiment one
Fig. 3 is the realization flow schematic diagram of HLS contents distribution among invention one embodiment, as shown in Figure 3, comprising:
Step 301: user terminal sends the initial content request URL to the CDN node server;
Wherein, is described initial content request URL: http://host/cid? authinfo=x, " cid " field is CID in the described initial content request URL, " authinfo " field is check information.
Step 302:CDN node server superior CDN node server sends relay request;
Wherein, the CDN node server is by sending the at first index file of the described CID respective file of superior CDN node server request catalogue of relay request.
Wherein, if CDN node server this locality stores the index file of described CID respective file catalogue, user terminal sends and the described identical initial content request URL of step 301 to the CDN node server before then representing step 301, and the CDN node server according to existing CDN technology buffer memory the index file of described CID respective file catalogue, skips steps 302 and 303 then, execution in step 304.
Step 303: higher level CDN node server returns index file index.m3u8 to the CDN node server;
Step 304:CDN node server sends the URL that carries CID that is redirected to user terminal;
Before the step 304, the CDN node server is at first resolved the initial content request URL that user terminal sends, judge that then the content of the initial content request URL sensing that user terminal sends is HLS content and execution in step 304 if parse the HLS sign, need to prove that this analysis judgment operation also can be carried out before step 302 or step 303.
Wherein, is the described redirected URL that carries CID: http://host/cid/index.m3u8/? authinfo=x, CDN node server are carried at the described redirected URL that carries CID in the HTTP302 redirect message and are sent to user terminal.
Step 305: user terminal sends the content requests URL that carries CID to the CDN node server;
Wherein, user terminal carries the content requests URL:http of described CID by transmission: //host/cid/index.m3u8/? authinfo=x is with to CDN node server request index file index.m3u8.
Step 306:CDN node server sends index file index.m3u8 to user terminal;
Before the step 306, whether the check information verified users terminal that the content requests URL that the CDN node server sends according to user terminal carries is the validated user terminal, and if so, then execution in step 306; Otherwise, stop to process.
Step 307: user terminal sends the content requests URL that carries CID to the CDN node server;
Wherein, the index file that the CDN node server sends in the user terminal receiving step 306 is to read the media file information of described CID respective file catalogue, and the relative path of the content requests URL that sends in the step 305 made amendment and be sent to described CDN node server, the content requests URL that sends when for example, user terminal need to be to CDN node server request media file 01.ts is: http://host/auhinfo/cid/01.ts.
Step 308:CDN node server is done the legitimacy verification to user terminal;
Wherein, whether the check information verified users terminal that the content requests URL that the CDN node server sends according to user terminal in the step 307 carries is the validated user terminal, and if so, then execution in step 309; Otherwise, stop to process.
Step 309:CDN node server superior CDN node server sends relay request;
Before the step 309, whether the CDN node server stores the media file 01.ts of user terminal requests according to " cid " field search this locality among the content requests URL of user terminal transmission in the step 307, if retrieve, then skips steps 309 and step 310, execution in step 311; Otherwise, execution in step 309.
Step 310: higher level CDN node server sends media file 01.ts to user terminal;
Wherein, the CID locating file catalogue that higher level CDN node server carries according to the relay request that CDN node server in the step 309 sends, and at the media file 01.ts of described file directory retrieval CDN node server request.
In step 309～310, the interactive operation of CDN node server and higher level CDN node server can be finished by subtending port.
Step 311:CDN node server sends media file 01.ts to user terminal.
The operation of other media files is identical with step 307～311 in the described CID respective file of the SS later request catalogue, repeats no more.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (10)
1. a content distributing network CDN distributes HTML (Hypertext Markup Language) live TV stream HLS content and method, it is characterized in that described method comprises:
When the CDN node server determines that content that initial content request uniform resource position mark URL that user terminal sends is pointed to is the HLS content, be redirected described initial content request URL and be the URL that carries the content identity mark number CID that described initial content request URL points to content and be sent to described user terminal;
Described CDN node server receives that described user terminal sends when carrying the content requests URL of CID, and the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal.
2. method according to claim 1 is characterized in that, described CDN node server determines that the content of the initial content request URL sensing that user terminal sends is the HLS content, comprising:
Described CDN node server is resolved the initial content request URL that described user terminal sends, if parse the HLS sign, determines that then the content of the initial content request URL sensing that user terminal sends is the HLS content.
3. method according to claim 1 is characterized in that, the CID that described CDN node server carries according to described content requests URL obtains the content of described content requests URL sensing and is sent to described user terminal, comprising:
The local content that whether has described content requests URL to point to of CID retrieval that described CDN node server carries according to described content requests URL, if having, the content that the described content requests URL that then will retrieve points to is sent to described user terminal; Otherwise superior CDN node server sends the relay request of pointing to content for described content requests URL, and the content that described higher level CDN node server is returned is sent to described user terminal.
4. according to claim 1,2 or 3 described methods, it is characterized in that the CID that described CDN node server carries according to described content requests URL obtains the content that described content requests URL points to and is sent to before the described user terminal, described method also comprises:
The check information that described CDN node server carries according to the content requests URL of the described CID of carrying, the described user terminal of verification is the validated user terminal.
5. a CDN node server is characterized in that, described CDN node server comprises: receiver module, judge module, redirection module, sending module and acquisition module; Wherein,
Described receiver module is used for receiving the initial content request URL of described user terminal transmission or the content requests URL that carries CID that described user terminal sends;
Whether described judge module is the HLS content for the content of judging the initial content request URL sensing that described receiver module receives;
Described redirection module is used in the judged result of described judge module when being, described initial content request URL is redirected URL for the CID that carries described content requests URL sensing content;
Described sending module is used for the content requests URL that carries CID that described redirection module is redirected is sent to described user terminal; The content that described acquisition module is obtained is sent to described user terminal;
Described acquisition module, be used for described receiver module receive that described user terminal sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to.
6. CDN node server according to claim 5 is characterized in that, described CDN node server also comprises:
Parsing module is used for resolving the initial content request URL that described receiver module receives;
Described judge module, judges that the content of the initial content request URL sensing that described user terminal sends is the HLS content at concrete being used for when described parsing module parses the HLS sign.
7. CDN node server according to claim 5 is characterized in that, described CDN node server also comprises:
Memory module is used for memory contents;
Described acquisition module, the concrete CID that is used for carrying according to the content requests URL that described receiver module receives retrieves the content that described content requests URL points in described memory module, and when not retrieving the content of described content requests URL sensing, generate the relay request of pointing to content for described content requests URL;
Described sending module, the content that also is used for described acquisition module is retrieved is sent to described user terminal; The relay request that described acquisition module is generated is sent to higher level CDN node server; The content that described receiver module is received is sent to described user terminal;
Described receiver module also is used for receiving the content that described higher level CDN node server returns.
8. according to claim 5,6 or 7 described CDN node servers, it is characterized in that described CDN node server also comprises:
Correction verification module, the check information that the content requests URL that carries CID that is used for receiving according to described receiver module carries, whether the described user terminal of verification is the validated user terminal;
Described acquisition module, concrete being used in the check results of described correction verification module when being, the CID that provides request URL to carry according to described content obtains the content of described content requests URL sensing.
9. a HLS content delivering system is characterized in that, described HLS content delivering system comprises: CDN node server and user terminal; Wherein,
Described CDN node server, when be used for determining that content that initial content request URL that user terminal sends is pointed to is the HLS content, be redirected described initial content request URL and be the URL that carries the CID that described initial content request URL points to content and be sent to described user terminal; Receive that described user terminal sends carry the content requests URL of CID the time, the CID that carries according to described content requests URL obtains the content that described content requests URL points to and is sent to described user terminal;
Described user terminal is used for sending the initial content request URL or carrying the content requests URL of CID to described CDN node server.
10. HLS content delivering system according to claim 9 is characterized in that,
Described CDN node server is each described CDN node server of claim 5 to 8.
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| CN201310022699.7A CN103051976B (en) | 2013-01-22 | 2013-01-22 | A kind of CDN distributes HLS content and method, system and equipment |
| PCT/CN2013/082947 WO2014114086A1 (en) | 2013-01-22 | 2013-09-04 | Hypertext transfer protocol living streaming content distribution method, system and device |
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| CN201310022699.7A CN103051976B (en) | 2013-01-22 | 2013-01-22 | A kind of CDN distributes HLS content and method, system and equipment |
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| CN103051976B (en) | 2016-02-10 |
| WO2014114086A1 (en) | 2014-07-31 |
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