CN1972441A - Method of stream media storage and service - Google Patents
Method of stream media storage and service Download PDFInfo
- Publication number
- CN1972441A CN1972441A CNA2006101657232A CN200610165723A CN1972441A CN 1972441 A CN1972441 A CN 1972441A CN A2006101657232 A CNA2006101657232 A CN A2006101657232A CN 200610165723 A CN200610165723 A CN 200610165723A CN 1972441 A CN1972441 A CN 1972441A
- Authority
- CN
- China
- Prior art keywords
- streaming media
- client
- media server
- streaming
- server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
This invention discloses one method to realize flow media memory and service, which comprises the following steps: a, flow media front end informs media servo for memory and receives flow media servo answer message and sends flow media servo; b, flow media servo stores the flow media; c, customer end sends play requires to flow media servo and establishes flow media connection channel; d, flow media servo plays flow media to customer end according to customer end.
Description
Technical Field
The present invention relates to multimedia communication technology, and more particularly, to a method for storing and serving streaming media.
Background
At present, streaming media technology is increasingly applied to mobile phone terminals, and is called "wireless streaming media" or "mobile streaming media" as opposed to wired streaming media, and is one of the key services of 3G, and is also a type of service between session service and interactive service. It has lower requirements on real-time than conversational services, and at the same time it differs from MMS (mobile multimedia messaging), and it is not based on asynchronous delivery of multimedia content to users in a messaging fashion, but rather on download-while-play, so it must be possible to maintain the temporal correlation between the information in the stream and the entities.
With the rapid development of broadband services of IP networks in recent years, packet-based multimedia entertainment is more and more popularized, streaming media technology is more widely applied, streaming media is characterized by bidirectional control interaction and unidirectional media transmission, more distinctive services can be provided for users, and meanwhile, the storage and service problems of streaming media are more and more urgent. The equipment used for the streaming media service at present comprises a streaming media front end, a streaming media server and a client, wherein the streaming media front end is used for sending streaming media to the streaming media server, the streaming media server has a sending function, and the client can be used for receiving the streaming media. And there is no currently disclosed solution to the problem of streaming media storage.
Disclosure of Invention
In view of the defects and shortcomings in the prior art, the present invention provides a method for implementing streaming media storage and service.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for storing and serving the streaming media comprises the following steps:
(1) the streaming media front end informs the streaming media server of storing the streaming media, and after receiving a response message of the streaming media server, sends the streaming media to the streaming media server;
(2) the streaming media server stores the received streaming media;
(3) the client sends a request for playing the streaming media of the live channel to the streaming media server, and establishes a streaming media connection channel after receiving a response message of the streaming media server;
(4) and the streaming media server plays the streaming media to the client according to the requirement of the client through the established connection channel.
Wherein the step (1) is specifically as follows:
(11) the method comprises the steps that a streaming media front end sends a real-time streaming protocol connection request to a streaming media server, requires to establish a live channel on the streaming media server, and carries a session description protocol extension field to inform the streaming media server of streaming media storage;
(12) after the streaming media server sends a response message for agreeing to store the streaming media to the streaming media front end, the streaming media front end sends the streaming media to the streaming media server.
Wherein, the content of the session description protocol extension field comprises: the live channel is a storage channel and a file name of a program stored in the live channel.
Wherein the step (2) specifically comprises: after receiving the streaming media, the streaming media server adds a session description protocol extension field into a real-time streaming protocol, records the absolute time point of the current streaming media, and stores the streaming media according to the file name of a live channel storage program in the session description protocol extension field.
Wherein the step (3) is specifically as follows:
(31) the client sends a request for playing the streaming media of the live channel to a streaming media server through a real-time streaming protocol;
(32) the streaming media server sends a response message to the client;
(33) after receiving the response message of the streaming media server, the client sends a request for establishing the connection of the streaming media connection channel to the streaming media server;
(34) the stream media server sends a request response for establishing the stream media connection channel to the client, and the client establishes the stream media connection channel after the establishment of the stream media connection channel is agreed.
Wherein, the requirements of the client comprise: playing the streaming media, or pausing playing the streaming media, or fast-rewinding the streaming media, or fast-forwarding the streaming media.
The method for transmitting the streaming media to the client by the streaming media server according to the requirement of the client specifically comprises the following steps:
if the client selects to pause playing the streaming media, the streaming media server records the absolute time of pause, and after the client selects to play, the streaming media is played from the recorded absolute time;
if the client selects fast-backward streaming media, the streaming media server starts playing the stored streaming media file to the client according to the time of the client backward from the current time;
and after the client selects to fast forward the streaming media, the streaming media server starts playing the stored streaming media file to the client according to the time fast forwarded by the client from the current time.
The method of the invention stores the media file in the streaming media server through the SDP (session description protocol) extension field transmitted in the RTSP (real time streaming protocol) protocol, realizes the storage of the streaming media; meanwhile, the client can request to play the stored streaming media on the streaming media server according to the requirement, and further, the functions of time-shifted television and conference television storage can be realized. The switching process is transparent to the user, and the user does not need to know any stored information, so that the user can watch the program at will.
Drawings
FIG. 1 is a schematic diagram of a network topology of a device used in the method for streaming media storage and service according to the present invention;
FIG. 2 is a flow chart of the streaming media front-end storing media to the streaming media server according to the present invention;
FIG. 3 is a flow chart of the present invention for the streaming media server to perform media service to the client;
fig. 4 is a format of an RTP (real time transport protocol) extension field in the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
Fig. 1 is a network topology diagram of a device used in the method for streaming media storage and service according to the present invention. The system comprises a streaming media front end, a streaming media server and a streaming media client. The streaming media front end can be an encoder or a conference television front end with a collecting and encoding function; the streaming media server has the functions of storing and transmitting streaming media programs; the client is any device capable of receiving streaming media, such as a set-top box, a player, a mobile phone terminal, and the like.
The following describes methods for implementing streaming media storage and providing services for clients, respectively, with reference to the accompanying drawings.
The method for storing the streaming media comprises the following steps:
(1) the streaming media front end sends an RTSP connection request to the streaming media server, requires to create a live channel on the streaming media server, and carries an extension field to inform the streaming media server of program storage.
(2) And the streaming media server sends a response to the front end of the encoder and agrees to store the program.
(3) And the streaming media front end sends RTSP connection process.
(4) The streaming server starts streaming storage, which may be indexed by the absolute time of storage.
Fig. 2 is a flow chart of the streaming media front end storing streaming media to the streaming media server according to the present invention. The method comprises the following specific steps:
(1) the streaming media front end sends an RTSP connection request to the streaming media server, and the RTSP connection request carries the extension field to inform the streaming media server that the program is required to be stored.
The method comprises the following steps that a streaming media front end sends ANNOUNCE rtsp:// server ip/dir/test.sdp to a streaming media server, which indicates that a live channel needs to be created on the streaming media server, and an extension field is carried in a message SDP, wherein the format of the extension field is as follows:
a ═ identifies that the channel is a stored channel >, such as: a-x-ZMSSSCCsaveChannel
a ═ file name > identifying the channel store, for example: x-ZMSCCfilename:/dir/testcord. mp4
This extension field indicates two aspects of information: (a) the present channel is a storage channel; (b) this channel stores the file names of the programs. For example:
a＝x-ZMSSCCSaveChannel
a＝x-ZMSSCCfilename:/dir/testrecord.mp4
wherein,
the x-zmsscccsavechannel indicates that the channel is a storage channel.
and a ═ x-zmsscfilename:/dir/testexpected. mp4 indicates that the filename of the media file storage is/dir/testexpected. mp4 under the default path.
(2) The streaming server responds to the 200 OK (200 is the success status code of the RTSP protocol) to grant the media request of the streaming front-end.
(3) The stream media front end sends a SETUP connection to the stream media server, informs the stream media server of a port sent by the stream media front end, and establishes a stream media channel.
(4) And the streaming media server responds to the 200 OK, informs the streaming media front end of a port for receiving the streaming media, and agrees to the request for establishing the media channel of the streaming media front end.
(5) If there are two paths of streaming media (video and audio), the streaming media front end also sends a SETUP connection to the streaming media server, informs the streaming media server of the port sent by the streaming media front end, and establishes a media channel of another stream.
(6) And the streaming media server responds to the 200 OK, informs the streaming media front end of a port for receiving the streaming media, and agrees to the request for establishing the media channel of the streaming media front end.
(7) And the streaming media front end sends a RECORD message to the streaming media server to inform the streaming media server to store media.
(8) The streaming media server sends a 200 OK response to the streaming media front end.
(9) And the streaming media front end sends the streaming media to the streaming media server.
(10) After receiving the stream media, the stream media server adds an extension field into the RTP stream media and records the absolute time point of the current stream media.
Wherein, the RTP extension field format, as shown in fig. 4:
the extension position X of the RTP is set to be 1, and the extension of the RTP header is identified. The first 16 bits of the extension header are identified as "ZM" and the last 16 bits are the length of the following extension message in units of 32-bit length. ZM and length themselves are not included in length, so length can be 0. The latter message structure is:
| id (8 bit) | len (8 position) | The contents of the fields. |
Wherein, the format defined by the 8-bit id is as follows:
1-64 bits have symbol sequence number, the initial value is 1, if the channel is not closed, the field is continuously accumulated all the time;
2-64 bit absolute time, code stream storage time, (time from 1 month 1 morning 1970);
others-pending;
definition of 8 bits len is: 8 bytes long, not including id and len itself.
(11) And performing streaming media storage, wherein the stored file name is the file name notified by the streaming media front-end ANNOUNCE message.
The method for streaming media service of the invention comprises the following contents:
(1) the client sends a request for playing the streaming media of the live channel to a streaming media server storing the streaming media through an RTSP (real time streaming protocol), and establishes a streaming media connection channel after receiving a response message of the streaming media server; the streaming media server sends streaming media to the client.
If the client selects pause, the streaming media server records the current pause time point of the user. And after the client selects to play, the streaming media server starts to send streaming media to the client from the stored media file from the recorded current pause time point of the user and enters a time-shifting state. The user can enter a time shifting state through fast backward in a live broadcasting state.
The client can select fast forward and fast backward in the time shifting state. If the client selects fast-backward streaming media, the streaming media server starts playing the stored streaming media file to the client according to the time point of fast backward of the client;
when the client selects fast forward streaming media, the streaming media server starts playing the streaming media to the client according to the time point of the fast forward of the client, if the client fast forwards to the end of the stored file, the server automatically turns into a live broadcast state and sends a live broadcast stream to the client, and at the moment, the client is not allowed to fast forward.
Fig. 3 is a flow chart of a streaming media server performing media service to a client. As shown in fig. 3, the specific steps are as follows:
(A) the client sends a request for playing the streaming media to a streaming media server storing the streaming media through a real-time streaming protocol: the client sends DESCRIBE rtsp:// server ip/dir/test.sdp to the streaming media server, which indicates that the program of the live channel is requested.
(B) The streaming server responds to the 200 OK and approves the media request of the client.
(C) The client sends a SETUP connection to the streaming media server, informs a receiving port of the client of the streaming media server, and establishes a streaming media channel.
(D) And the streaming media server responds to the 200 OK, informs the client of a port for sending the streaming media to the streaming media server, and agrees to the request for establishing the media channel of the client.
(E) If there are two paths of streaming media (video and audio), the client also sends a SETUP connection to the streaming media server to notify the receiving port of the streaming media server client and establish a media channel of another stream.
(F) And the streaming media server responds to the 200 OK, informs the client of a port for receiving the streaming media and agrees to the media channel establishment request of the client.
(G) And the streaming media server sends a connection request response to the client and sends streaming media to the client according to the requirement of the client.
When the client sends PLAY information to the streaming media server, the streaming media server is informed to send media, and the streaming media server sends 200 OK response to the client and transmits the streaming media to the client.
When the client selects to PAUSE playing the streaming media, a PAUSE message is sent to the streaming media server, and the streaming media server records the absolute time of PAUSE of the client (user) and returns a 200 OK response to the client.
The client selects to start playing and sends PLAY message to the streaming media server. The streaming media server searches a corresponding storage file in the SDP of the live channel, such as/dir/testored. mp4 under a default media path, then reads data from an absolute time point, stored by the streaming media server, at which the client is paused, and the streaming media server sends streaming media to the client.
If the client selects fast backward under live broadcasting, the streaming media server obtains streaming media data from the stored media file according to the time point of fast backward of the client and sends the streaming media data to the client.
In summary, the present invention provides a method for storing programs and providing services to client users by using the extended fields in the SDP protocol (RFC2327) through the standard RTSP protocol (RFC 2326). The invention solves the problem of stream media storage, thereby leading the application of the stream media to be wider and supporting stream media services such as conference television storage, time-shifting television and the like. The streaming media is stored in the RTSP without being modified, and only the SDP file is expanded, so that the compatibility is good, and particularly, the switching access between live broadcasting and stored data can be supported without modifying an RTSP client.
Claims (7)
1. The method for storing and serving the streaming media is characterized by comprising the following steps:
(1) the streaming media front end informs the streaming media server of storing the streaming media, and after receiving a response message of the streaming media server, sends the streaming media to the streaming media server;
(2) the streaming media server stores the received streaming media;
(3) the client sends a request for playing the streaming media to the streaming media server, and establishes a streaming media connection channel after receiving a response message of the streaming media server;
(4) and the streaming media server transmits streaming media to the client according to the requirement of the client through the established connection channel.
2. The method of streaming media storage and service of claim 1, wherein: the step (1) is specifically as follows:
(11) the method comprises the steps that a streaming media front end sends a real-time streaming protocol connection request to a streaming media server, requires to establish a live channel on the streaming media server, and carries a session description protocol extension field to inform the streaming media server of streaming media storage;
(12) after the streaming media server sends a response message for agreeing to store the streaming media to the streaming media front end, the streaming media front end sends the streaming media to the streaming media server.
3. The method of streaming media storage and service of claim 2, wherein: the contents of the session description protocol extension field comprise: the live channel is a storage channel and a file name of a program stored in the live channel.
4. A method of streaming media storage and service according to claim 2 or 3, characterised in that: the step (2) is specifically as follows: after receiving the streaming media, the streaming media server adds a session description protocol extension field into a real-time streaming protocol, records the absolute time point of the current streaming media, and stores the streaming media according to the file name of a live channel storage program in the session description protocol extension field.
5. The method of streaming media storage and service of claim 1, wherein: the step (3) is specifically as follows:
(31) the client sends a request for playing the streaming media of the live channel to a streaming media server through a real-time streaming protocol;
(32) the streaming media server sends a response message to the client;
(33) after receiving the response message of the streaming media server, the client sends a request for establishing the connection of the streaming media connection channel to the streaming media server;
(34) the stream media server sends a request response for establishing the stream media connection channel to the client, and the client establishes the stream media connection channel after the establishment of the stream media connection channel is agreed.
6. The method for streaming media storage and service according to claim 1, wherein the requirements of the client in the step (4) comprise: playing the streaming media, or pausing playing the streaming media, or fast-rewinding the streaming media, or fast-forwarding the streaming media.
7. The method of streaming media storage and service of claim 6, wherein: the step of transmitting the streaming media to the client by the streaming media server according to the requirement of the client specifically comprises the following steps:
if the client selects to pause playing the streaming media, the streaming media server records the absolute time of pause, and after the client selects to play, the streaming media is played from the recorded absolute time;
if the client selects fast-backward streaming media, the streaming media server starts playing the stored streaming media file to the client according to the time of the client backward from the current time;
and after the client selects to fast forward the streaming media, the streaming media server starts playing the stored streaming media file to the client according to the time fast forwarded by the client from the current time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101657232A CN1972441A (en) | 2006-12-14 | 2006-12-14 | Method of stream media storage and service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101657232A CN1972441A (en) | 2006-12-14 | 2006-12-14 | Method of stream media storage and service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1972441A true CN1972441A (en) | 2007-05-30 |
Family
ID=38112983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101657232A Pending CN1972441A (en) | 2006-12-14 | 2006-12-14 | Method of stream media storage and service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1972441A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009006814A1 (en) * | 2007-07-04 | 2009-01-15 | Huawei Technologies Co., Ltd. | Time shift tv service establishment method and time shift tv media function entity |
| WO2009049478A1 (en) * | 2007-09-25 | 2009-04-23 | Xunlei Networking Technologies, Ltd. | A method, system and device for playing stream media |
| WO2009055988A1 (en) * | 2007-10-30 | 2009-05-07 | Zte Corporation | A method of time-shifting for an iptv system over next generation networks |
| WO2009117917A1 (en) * | 2008-03-28 | 2009-10-01 | 华为技术有限公司 | A stream media service switching method, system and device |
| CN101459824B (en) * | 2007-07-04 | 2011-03-30 | 华为技术有限公司 | Time shifted television service establishing method and time shifted television media functional entity |
| CN101188622B (en) * | 2007-12-29 | 2011-04-20 | 腾讯科技（深圳）有限公司 | A method and device for downloading file by using P2P living broadcast channel |
| CN101414999B (en) * | 2007-10-19 | 2011-08-31 | 华为技术有限公司 | Method for obtaining relation of channel and medium, channel information sending method and related apparatus |
| CN109218257A (en) * | 2017-06-30 | 2019-01-15 | 中国电信股份有限公司 | Flow media playing method, system, server and the device for streaming media playing |
| CN111193895A (en) * | 2019-12-20 | 2020-05-22 | 视联动力信息技术股份有限公司 | Recording and broadcasting method, recording and broadcasting system, client, electronic equipment and storage medium |
| CN113485972A (en) * | 2021-08-02 | 2021-10-08 | 安徽文香科技有限公司 | Multimedia sharing method, device, mobile terminal and storage medium |
-
2006
- 2006-12-14 CN CNA2006101657232A patent/CN1972441A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340557B (en) * | 2007-07-04 | 2010-08-11 | 华为技术有限公司 | Time shifted television establishing method and time shifted television media functional entity |
| CN101459824B (en) * | 2007-07-04 | 2011-03-30 | 华为技术有限公司 | Time shifted television service establishing method and time shifted television media functional entity |
| WO2009006814A1 (en) * | 2007-07-04 | 2009-01-15 | Huawei Technologies Co., Ltd. | Time shift tv service establishment method and time shift tv media function entity |
| WO2009049478A1 (en) * | 2007-09-25 | 2009-04-23 | Xunlei Networking Technologies, Ltd. | A method, system and device for playing stream media |
| US8578042B2 (en) | 2007-09-25 | 2013-11-05 | Xunlei Networking Technologies, Ltd. | Method, system and device for playing streaming media |
| CN101414999B (en) * | 2007-10-19 | 2011-08-31 | 华为技术有限公司 | Method for obtaining relation of channel and medium, channel information sending method and related apparatus |
| WO2009055988A1 (en) * | 2007-10-30 | 2009-05-07 | Zte Corporation | A method of time-shifting for an iptv system over next generation networks |
| CN101426124B (en) * | 2007-10-30 | 2011-06-22 | 中兴通讯股份有限公司 | Time shifting method for interactive network television system in next generation communication network |
| CN101188622B (en) * | 2007-12-29 | 2011-04-20 | 腾讯科技（深圳）有限公司 | A method and device for downloading file by using P2P living broadcast channel |
| WO2009117917A1 (en) * | 2008-03-28 | 2009-10-01 | 华为技术有限公司 | A stream media service switching method, system and device |
| CN109218257A (en) * | 2017-06-30 | 2019-01-15 | 中国电信股份有限公司 | Flow media playing method, system, server and the device for streaming media playing |
| CN111193895A (en) * | 2019-12-20 | 2020-05-22 | 视联动力信息技术股份有限公司 | Recording and broadcasting method, recording and broadcasting system, client, electronic equipment and storage medium |
| CN111193895B (en) * | 2019-12-20 | 2022-09-27 | 视联动力信息技术股份有限公司 | Recording and broadcasting method, recording and broadcasting system, client, electronic equipment and storage medium |
| CN113485972A (en) * | 2021-08-02 | 2021-10-08 | 安徽文香科技有限公司 | Multimedia sharing method, device, mobile terminal and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1972441A (en) | Method of stream media storage and service | |
| CN105338425B (en) | A kind of system and method for realizing video seamless switching between multi-screen | |
| CN101160966B (en) | Method, device and system of implementing time-shifting TV | |
| US9615119B2 (en) | Method and apparatus for providing timeshift service in digital broadcasting system and system thereof | |
| CN105354002B (en) | A kind of system and method for realizing video seamless switching between multi-screen | |
| US20090106288A1 (en) | Method and system for supporting media data of various coding formats | |
| CN101465996B (en) | Method, equipment and system for displaying network television time | |
| CN112399190B (en) | Audio and video data acquisition method and device | |
| CN101588469A (en) | Channel information generation, access control, delivery method, IPTV system and device | |
| CN101582731A (en) | Method and system for processing bookmark service and triggering, supplying, processing and control devices | |
| KR100739172B1 (en) | Method for transmitting moving picture in mobile terminal using pseudo streaming technology | |
| KR101497170B1 (en) | Alternate link on-demand instant replay supported via an internet protocol multimedia subsystem | |
| CN101877719B (en) | Method, system and B2BUA for realizing television interaction at mobile terminal | |
| WO2004081799A1 (en) | Receiver apparatus and information browsing method | |
| WO2009052650A1 (en) | Method and terminal for forwarding an iptv program to an sip terminal | |
| US8908853B2 (en) | Method and device for displaying information | |
| CN101360114A (en) | Multimedia system providing real-time scene and implementing method thereof | |
| CN103684992B (en) | Home gateway, terminal and data sharing method | |
| JP5332303B2 (en) | Service providing method, streaming server, streaming transmission method, and program | |
| KR100802088B1 (en) | Method and device for providing real-time VOD service | |
| WO2008141542A1 (en) | A method, video device and system for displaying information at the time of switching channels | |
| CN101572796A (en) | Method, device and system for broadcast control | |
| CN101466017A (en) | Interactive device and method for network television | |
| KR100759807B1 (en) | Method of time-shifting service in multicast based IPTV | |
| US8671422B2 (en) | Systems and methods for handling advertisements in conjunction with network-based bookmarking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20070530 |