CN107483460B - Method and system for multi-platform parallel broadcasting and stream pushing - Google Patents
Method and system for multi-platform parallel broadcasting and stream pushing Download PDFInfo
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 58
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2181—Source of audio or video content, e.g. local disk arrays comprising remotely distributed storage units, e.g. when movies are replicated over a plurality of video servers
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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- H—ELECTRICITY
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
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- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440236—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
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- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
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Abstract
The invention discloses a method and a system for multi-platform parallel broadcasting and pushing stream with copyright information, which are used for carrying out primary synthesis on live program elements to obtain primary audio and video stream; respectively carrying out secondary synthesis on the primary audio and video stream and identification information pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information; and respectively pushing the live video streams with different identifications to the corresponding live platform. Through twice synthesis, live video streams with different identifications are generated and then are respectively pushed to corresponding live platforms. The video signal stream finally synthesized can be distributed to different live broadcast platforms simultaneously under the control of the same cloud program director, and different identification information can be carried by the video signal stream respectively aiming at different live broadcast platforms. The scheme provided by the invention is simple and effective, and needs less equipment and operators, and can effectively save cost.
Description
Technical Field
The invention relates to the technical field of network live broadcast, in particular to a method and a system for multi-platform parallel broadcasting and pushing streams.
Background
With the development of information technology, the network live broadcast industry is rapidly emerging with its wide prospect, and a great number of live broadcast platforms are generated at the same time.
In the current cloud director products, part of the products begin to provide a multi-platform parallel stream pushing function, that is, programs are distributed to a plurality of live broadcast platforms at the same time, so that the number of people watching the programs can be increased. The implementation is roughly as shown in fig. 1.
As can be seen from fig. 1, in the server, a channel of synthesis coding module is shared, and the station caption picture and the video data are synthesized into the final video output, so that the picture content output to each platform is the same, and only one station caption can be carried to represent the copyright information. However, in some cases, the program sponsor may request that the frames pushed to different platforms carry different copyright indication information (e.g., platform 1 requests to display station caption 1, and platform 2 requests to display station caption 2 …), and the above solution is not supported.
The method for changing the video content is that a user uses a plurality of broadcasting guide stations at the same time, the video switching is carried out independently, different station caption pictures or identification information are configured according to the requirement of a copyright party, and then the different station caption pictures or the identification information are distributed to respective live broadcasting platforms respectively. However, this requires that each director pulls out the video stream separately and switches the director separately, which significantly increases the complexity of the scheme, and also requires a large number of operators, too high technical and labor costs, and is not operable.
Therefore, how to provide a technical scheme of multi-platform parallel directing and pushing streams satisfies that under the control of the same cloud directing station, the finally synthesized video signals can be simultaneously distributed to different live broadcast platforms, and different station caption information can be respectively carried for different live broadcast platforms, the scheme is simple and effective, required equipment and operators are fewer, and the technical problem which needs to be solved by technical personnel in the field at present is solved by the technical scheme so as to save cost.
Disclosure of Invention
The invention aims to provide a method and a system for multi-platform parallel broadcasting and streaming, which can simultaneously distribute finally synthesized video signals to different live broadcasting platforms under the control of the same cloud broadcasting guide, can respectively carry different station caption information aiming at different live broadcasting platforms, and has the advantages of simple and effective scheme and manpower and material resource saving.
In order to solve the technical problems, the invention provides the following technical scheme:
a method of multi-platform parallel direction-casting push streams, comprising:
performing primary synthesis on the live program elements to obtain primary audio and video streams; respectively carrying out secondary synthesis on the primary audio and video stream and identification information pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information; and respectively pushing the live video streams with different identification information to the corresponding live platforms through the stream pushing modules corresponding to the live platforms.
Preferably, before the primary synthesizing of the live program elements to obtain the primary audio/video stream, the method further includes: and configuring the live channel address of the live platform in a director system in advance so as to push the live video stream to the corresponding live platform.
Preferably, the streaming live video streams with different identification information to corresponding live platforms respectively includes: and sending the live broadcast video stream with different identification information to the corresponding live broadcast platform according to the identification information parameters corresponding to each live broadcast platform.
Preferably, before the live video streams are respectively pushed to the corresponding live platforms, the method further includes: and carrying out encoding operation on the live video stream.
Preferably, the live program elements include: video captured by a camera, audio captured by a microphone, special effects of pictures, network flow data.
A system for multi-platform parallel direction-casting of push streams, comprising:
the first-level synthesis module is used for performing first-level synthesis on the live program elements to obtain a first-level audio/video stream;
the second-stage synthesis module is used for performing second-stage synthesis on the first-stage audio and video stream and identification information which is pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information;
and the stream pushing module is used for respectively pushing the live video streams with different identification information to the corresponding live platforms.
Preferably, the method further comprises the following steps: and the channel address configuration module is used for configuring the live channel address of the live platform in the director system in advance so as to push the live video stream to the corresponding live platform.
Preferably, the plug flow module is further configured to: and sending the live broadcast video stream with different identification information to the corresponding live broadcast platform according to the identification information parameters corresponding to each live broadcast platform.
Preferably, the method further comprises the following steps: and the encoding module is used for encoding the live video stream.
Preferably: the live program elements include: video captured by a camera, audio captured by a microphone, special effects of pictures, network flow data.
Compared with the prior art, the technical scheme has the following advantages:
the invention provides a method and a system for multi-platform parallel broadcasting and pushing stream, which are characterized in that a first-level audio and video stream is obtained by performing first-level synthesis on live program elements; respectively carrying out secondary synthesis on the primary audio and video stream and identification information pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information; and respectively pushing the live video streams with different identification information to the corresponding live platforms through the stream pushing modules corresponding to the live platforms. Through twice synthesis, live broadcast video streams with different identification information are generated and then are respectively pushed to corresponding live broadcast platforms. The video signal stream finally synthesized can be distributed to different live broadcast platforms simultaneously under the control of the same cloud program director, and different identification information can be carried by the video signal stream respectively aiming at different live broadcast platforms. The scheme provided by the invention is simple and effective, and the required equipment and operators are fewer, so that the cost is effectively saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for distributing a program to multiple live platforms simultaneously in a conventional scheme;
FIG. 2 is a flowchart of a method for multi-platform parallel director streaming according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a multi-platform parallel broadcast directing and streaming system of a cloud platform according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for multi-platform parallel director streaming according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a method and a system for multi-platform parallel broadcasting and pushing streams.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. The invention is therefore not limited to the specific implementations disclosed below.
Referring to fig. 2, fig. 2 is a flowchart of a method for multi-platform parallel push streaming according to an embodiment of the present invention.
A specific embodiment of the present invention provides a method for multi-platform parallel streaming, including:
s11: and performing primary synthesis on the live program elements to obtain primary audio and video streams.
Under the software platform of the director, the contents to be live broadcasted by the director are often different and diversified. In the live content, such as a game live broadcast, which is received by the audience, the live broadcast typically includes a game picture of the main broadcast, a video captured by a camera of the main broadcast, and the like.
The invention firstly carries out primary synthesis on the constituent elements of the live program, and the live audio and video stream after the primary synthesis does not contain the identification information of the live platform.
S12: and respectively carrying out secondary synthesis on the primary audio and video stream and identification information preconfigured for each live broadcast platform to obtain live broadcast video streams with different identification information.
Before live audio and video streams are pushed to a plurality of different live broadcast platforms simultaneously and parallelly, identification information of the live broadcast platform to be pushed needs to be configured in advance, the identification information can be station caption information and the like corresponding to the live broadcast platform, and the station caption information is a watermark picture with certain transparency under the general condition.
And then, respectively synthesizing the primary audio/video with the pre-configured identification information of different live broadcast platforms, wherein the synthesis is called secondary synthesis. And (4) carrying out secondary synthesis on the video stream, wherein the corresponding live video picture is a live video picture which can be finally seen by the audience and contains all elements of live programs and identification information of a live platform to be pushed in parallel.
S13: and respectively pushing the live video streams with different identification information to corresponding live platforms.
And finally, respectively pushing the live video streams with different identification information after the secondary synthesis to corresponding live platforms.
In one embodiment provided by the invention, live video streams with different identification information are generated by twice synthesis and then are respectively pushed to corresponding live platforms. The video signal stream finally synthesized can be distributed to different live broadcast platforms simultaneously under the control of the same cloud program director, and different identification information can be carried by the video signal stream respectively aiming at different live broadcast platforms. The method adopted by the invention is simple and effective, requires less equipment and operators, has low operation difficulty and can effectively save the cost.
In one embodiment of the present invention, in step S11: before the first-level synthesis is performed on the live program elements to obtain the first-level audio/video stream, the method may further include:
and configuring the live channel address of the live platform in a director system in advance so as to push the live video stream to the corresponding live platform.
If a live video stream is to be pushed to a live platform, a channel address of the live video stream on the live platform needs to be configured in a directing system, so that the live video stream is pushed to a pre-configured live platform during live broadcasting.
Meanwhile, the live broadcast on the live broadcast platform generally needs login operation or identity authentication operation, and when the channel address of the live broadcast platform is configured in advance, the login and identity authentication steps on the live broadcast platform which are configured in advance can be completed together.
In one embodiment of the present invention, step S13: the process of pushing the live video stream with different identification information to the corresponding live platform respectively may include:
and pushing the live video stream with different identifications to the corresponding live platform according to the parameters of the identification information corresponding to each live platform.
When live broadcast streams after secondary synthesis of live broadcast program elements are required to be pushed to a specified live broadcast platform, the live broadcast video streams carry different identification information, and in order to push the live broadcast video streams carrying different identification information to a specified and correct live broadcast platform, parameters related to the corresponding live broadcast platform are inserted into the identification information in advance when the identification information is configured for each live broadcast platform in advance so as to push live broadcast pictures to the correct channel of the live broadcast platform for live broadcast.
For example, a watermark picture with the transparency of 50% is configured in advance for each live broadcast platform correspondingly, and the watermark picture is used as a station caption, namely identification information, of each live broadcast platform; meanwhile, the information of the corresponding live platform, such as a hyperlink of a live platform channel and the like, is inserted into the station caption pictures.
When the live video stream is pushed, the address of the live video stream carrying a certain station caption picture to be pushed can be known through identification, and the accuracy and the reliability of pushing the live video stream are ensured.
In one embodiment of the present invention, in step S13: before pushing the live video pictures with different station captions to the corresponding live platform respectively, still include:
under the condition that the conditions allow, audiences almost select the clearest image quality to watch live programs, and the live video code rate which can be output by corresponding broadcasting-directing or anchor equipment is also very high; meanwhile, the video formats of the various live broadcast platforms may also be different, so that the live broadcast pictures need to be encoded before being pushed.
The live video pictures can be coded into different code rates to meet the requirements of audiences under different conditions and different network conditions; and can be encoded into a specified format to adapt to the special requirements of a specific live platform.
In one embodiment of the present invention, step S11: performing primary synthesis on live program elements to obtain a primary audio/video stream, wherein the live program elements comprise: video captured by a camera, audio captured by a microphone, special effects of pictures, network flow data.
In order to make the live broadcast picture more attractive and personalized, many personalized elements are often added to the live broadcast content, such as some special effects of the picture, network stream data such as video captured by a main broadcast camera, audio captured by a microphone or video played on the network, and the like. The live view will be more attractive.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a multi-platform parallel broadcast-direction streaming system with copyright information of a cloud platform according to an embodiment of the present invention.
An embodiment of the present invention provides a system for multi-platform parallel streaming, including:
the primary synthesis module 21 is configured to perform primary synthesis on live program elements to obtain a primary audio/video stream;
the secondary synthesis module 22 is used for performing secondary synthesis on the primary audio and video stream and identification information pre-configured for each live broadcast platform respectively to obtain live broadcast video streams with different identification information;
the stream pushing module 23 is configured to respectively push live video streams with different identification information to corresponding live platforms;
further, still include: and the channel address configuration module 24 is configured to configure a live channel address of the live platform in the director system in advance, so as to push the live video stream to the corresponding live platform.
Further, the plug flow module 23 is further configured to: and pushing the live video stream with different identifications to the corresponding live platform according to the parameters of the identification information corresponding to each live platform.
Further, still include: and an encoding module 25, configured to perform an encoding operation on the live video picture.
Further, the live program elements include: video captured by a camera, audio captured by a microphone, special effects of pictures, network flow data.
The operation of the above system is illustrated below.
Firstly, the channel address configuration module 24 configures the live channel address of the live platform in the director system in advance, so as to push the live video stream to the corresponding live platform, and the step includes login and authentication in the specified live platform.
Then, the first-level synthesis module 21 performs first-level synthesis on the video captured by the camera, the audio captured by the microphone, the picture special effects, the network stream data and other live program elements to obtain a first-level audio/video picture.
The primary audio/video stream obtained through the primary synthesis passes through the secondary synthesis module 22, and the live video stream with different station titles is pre-configured and can be set by the director station.
The live video stream obtained after the secondary synthesis is further encoded by an encoding module 25, and encoded into a specified format or compressed into a specific code rate and definition so as to meet the requirements of different people.
The invention is described in detail below by way of examples:
the scheme of the invention is characterized in that the synthesis module is divided into a primary synthesis module and a secondary synthesis module, and the output of the primary synthesis module can be shared, thereby saving CPU resources; the secondary synthesis module synthesizes the different identifications respectively to form a final video stream; and then coding and stream pushing are respectively carried out, so that the video streams of different live broadcast platforms have different identification information, and the requirements of different copyright parties are met.
In this embodiment, the identification information is station caption information, i.e., station caption pictures, corresponding to each live broadcast platform.
Fig. 4 is a flowchart of a method for multi-platform parallel streaming according to an embodiment of the present invention;
corresponding parameters are set for the station caption pictures corresponding to each live broadcast platform on the director, when a certain station caption picture is sent to the synthesis server, the synthesis module in the synthesis server can determine the live broadcast platform corresponding to each station caption picture through the parameters, and therefore a relation graph of the primary synthesis module and the secondary synthesis module is established.
The program elements include video 1 and video 2; performing primary synthesis on the video 1 and the video 2 by a primary synthesis module of the current server to obtain a primary video stream; and then the primary video stream is respectively subjected to secondary synthesis with each station caption picture in the station caption set.
Before this, the parameters corresponding to the live platform or the live address are set for each station caption picture, so that after the secondary synthesis module of the server carries out secondary synthesis on the primary video stream and the station caption picture, the live content can be accurately pushed to the corresponding live platform or the live address through coding and pushing.
In the process, only one computer is needed to be used as a program guide station computer, and at least one person is needed to perform audio and video switching operation, so that the program content can be distributed to a plurality of different live broadcast platforms simultaneously, different station marks can be set as copyright information for each live broadcast platform, and the appeal requirements of different distribution channels on the copyright information are met. In summary, multi-platform live broadcast and distribution in a specific scene are efficiently completed with minimum equipment cost and labor cost.
In summary, the method and system for multi-platform parallel streaming guidance provided by the present invention configure corresponding identification information for each live broadcast platform; performing primary synthesis on elements of the live broadcast content to obtain primary audio and video stream; respectively carrying out secondary synthesis on the primary audio and video stream and each identification information to obtain a live broadcast video stream; and then, respectively pushing the live video streams with different identification information to corresponding live platforms. Through twice synthesis, live broadcast video streams with different identification information are generated and then are respectively pushed to corresponding live broadcast platforms. The video streaming signals finally synthesized can be simultaneously distributed to different live broadcast platforms under the control of the same cloud program director, and different identification information can be respectively carried by the different live broadcast platforms. The scheme provided by the invention is simple and effective, and needs less equipment and operators, and can effectively save cost.
The method and system for multi-platform parallel broadcasting and pushing provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A method for multi-platform parallel stream-pushing, comprising:
performing primary synthesis on the live program elements to obtain primary audio and video streams; the live program element includes: video captured by a camera, audio captured by a microphone, special effects of pictures and network flow data;
respectively carrying out secondary synthesis on the primary audio and video stream and identification information pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information; the identification information is station caption information corresponding to a live broadcast platform, the station caption information is a watermark photo corresponding to the live broadcast platform, and the watermark photo carries a hyperlink of a live broadcast platform channel;
and utilizing the hyperlink to respectively push the live video streams with different identification information to corresponding live platforms through the stream pushing modules corresponding to the live platforms.
2. The method of claim 1, further comprising, before the primary synthesizing of the live program elements into a primary audio/video stream:
and configuring the live channel address of the live platform in a director system in advance so as to push the live video stream to the corresponding live platform.
3. The method of claim 1, wherein the step of streaming the live video streams with different identification information to corresponding live platforms respectively comprises:
and sending the live broadcast video stream with different identification information to the corresponding live broadcast platform according to the identification information parameter corresponding to each live broadcast platform.
4. The method of claim 1, further comprising, before streaming the live video streams to the corresponding live platforms respectively:
and carrying out encoding operation on the live video stream.
5. A system for multi-platform parallel streaming, comprising:
the first-level synthesis module is used for performing first-level synthesis on the live program elements to obtain a first-level audio/video stream; the live program elements include: video captured by a camera, audio captured by a microphone, special effects of pictures and network flow data;
the second-stage synthesis module is used for performing second-stage synthesis on the first-stage audio and video stream and identification information which is pre-configured for each live broadcast platform to obtain live broadcast video streams with different identification information; the identification information is station caption information corresponding to a live broadcast platform, the station caption information is a watermark photo corresponding to the live broadcast platform, and the watermark photo carries a hyperlink of a live broadcast platform channel;
and the stream pushing module is used for utilizing the hyperlink to respectively push the live video streams with different identification information to the corresponding live platforms.
6. The system of claim 5, further comprising:
and the channel address configuration module is used for configuring the live channel address of the live platform in a director system in advance so as to push the live video stream to the corresponding live platform.
7. The system of claim 5, wherein the plug flow module is further configured to: and sending the live broadcast video stream with different identification information to the corresponding live broadcast platform according to the identification information parameter corresponding to each live broadcast platform.
8. The system of claim 5, further comprising:
and the encoding module is used for encoding the live video stream.
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| CN108521560A (en) * | 2018-04-20 | 2018-09-11 | 安徽展航信息科技发展有限公司 | A kind of mobile live streaming equipment of multi-platform teaching |
| CN108810654A (en) * | 2018-07-12 | 2018-11-13 | 武汉斗鱼网络科技有限公司 | A kind of watermark adding method, device and electronic equipment |
| CN108924577B (en) * | 2018-07-17 | 2021-02-09 | 杭州雅顾科技有限公司 | Program production and broadcasting system and method based on live broadcast |
| CN109005415A (en) * | 2018-07-26 | 2018-12-14 | 阿里巴巴集团控股有限公司 | A kind of network direct broadcasting control method, apparatus and system |
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