CN110557647A - Simple stream pushing technology for direct recording and broadcasting conference - Google Patents
Simple stream pushing technology for direct recording and broadcasting conference Download PDFInfo
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- CN110557647A CN110557647A CN201910809534.1A CN201910809534A CN110557647A CN 110557647 A CN110557647 A CN 110557647A CN 201910809534 A CN201910809534 A CN 201910809534A CN 110557647 A CN110557647 A CN 110557647A
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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
- H04N21/2187—Live feed
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
-
- 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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
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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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
- H04N21/25875—Management of end-user data involving end-user authentication
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
Abstract
The invention discloses a simple live-recording and broadcasting conference streaming technology, which comprises video acquisition equipment, audio acquisition equipment, a broadcasting guide system terminal, a management terminal, a live broadcasting server, a streaming server and a client, wherein the video acquisition equipment is used for providing a live broadcasting video source; the audio acquisition equipment is used for acquiring a live audio source; the broadcasting guide system terminal is used for integrating an audio source and a video source, uploading the audio source and the video source to a live broadcast server, and then storing the audio source and the video source; the stream pushing server is used for judging whether the stream pushing delay time length exceeds the preset delay time length or not, and if the stream pushing delay time length exceeds the preset delay time length, reducing the uploaded video data volume by adopting a frame dropping mode; the management terminal is used for displaying the online condition of each user; the live broadcast server is used for collecting, coding and compressing a video source to provide a live broadcast source; and the client accesses the website by using a browser arranged inside to obtain the video and audio of the conference.
Description
Technical Field
The invention relates to the technical field of live broadcasting, in particular to a simple live-recording and live-recording conference stream pushing technology.
Background
With the rapid development of internet and multimedia technology, multimedia applications such as video conferences and live video broadcasting also come into play. The current control channel for the video conference is single, and the requirement of diversified conference control generated along with the rise of the mobile internet cannot be met. In addition, in some scenes, a user may not be required to join a two-way video conference place, and only the user needs to participate in the conference as an onlooker in a live broadcast mode.
However, in the live broadcasting process, the problems of video stream blocking, unclear and the like may occur due to factors such as the network, and at this time, adjustment of the stream pushing parameters is required. And the plug flow refers to a process of transmitting the content packaged in the acquisition stage to a server. It is the process of transmitting the video signal of the scene to the network. The stream pushing parameters generally include a code rate, a frame rate, a resolution, a stream pushing server, and the like, that is, the code rate, the frame rate, the resolution, the stream pushing server, and the like for pushing the video stream by the anchor terminal, so how to push the live data with a higher stream pushing accuracy through simple and fast operation steps is an urgent problem to be solved.
disclosure of Invention
The invention aims to provide a simple stream pushing technology for a live-recorded and broadcast conference, so as to solve the problems in the background technology.
in order to achieve the purpose, the invention provides the following technical scheme: a simple stream pushing technology for a direct recording and broadcasting conference comprises a video acquisition device, an audio acquisition device, a broadcasting guide system terminal, a management terminal, a live broadcasting server, a stream pushing server and a client, wherein the video acquisition device is used for providing a live broadcasting video source; the audio acquisition equipment is used for acquiring a live audio source; the broadcasting guide system terminal is used for integrating an audio source and a video source, uploading the audio source and the video source to a live broadcast server, and then storing the audio source and the video source; the stream pushing server is used for judging whether the stream pushing delay time length exceeds the preset delay time length or not, and if the stream pushing delay time length exceeds the preset delay time length, reducing the uploaded video data volume by adopting a frame dropping mode; the management terminal is used for displaying the online condition of each user; the live broadcast server is used for collecting, coding and compressing a video source to provide a live broadcast source; and the client accesses the website by using a browser arranged inside to obtain the video and audio of the conference.
Preferably, the stream pushing server determines whether the stream pushing delay time exceeds the preset delay time according to an initial stream pushing time of the uploaded video, the amount of video data pushed between the initial stream pushing time and the current time, and the average stream pushing code rate of the target video. .
Preferably, the stream pushing server detects that the stream pushing lag time length is reduced to be within the preset lag time length, and then stops dropping frames.
Preferably, the video acquisition device and the audio acquisition device are connected with the terminal of the director system through an SDI line and an audio line.
Preferably, the preset delay time set by the plug flow server may calculate the self-set time according to the total data amount cached at present and the current real-time rate.
Preferably, a storage module is arranged in the director system terminal, and the storage module can transmit data with an external storage device through a data interface.
Preferably, an account information verification module is arranged in the management terminal, and live broadcast can be watched only after account information verification is completed.
Preferably, the management terminal displays the real-time online condition of the client and is provided with a sign-in module.
Preferably, a dropped frame encoded frame removal module is arranged in the stream pushing server, and is configured to remove the dropped frame video data volume encoded frame from the buffer queue of the sending end.
A simple stream pushing technology for a direct recording and broadcasting conference is characterized by comprising the following steps:
The method comprises the following steps of firstly, turning on a video acquisition device and an audio acquisition device, and acquiring and transmitting an audio source and a video source to a program guide system terminal by the video acquisition device and the audio acquisition device.
And secondly, integrating the audio source and the video source by the terminal of the broadcast guiding system, uploading the audio source and the video source to a live broadcast server and then storing the audio source and the video source.
And thirdly, judging whether the push stream lag time exceeds the preset lag time or not by the push stream server according to the initial push stream time of the uploaded video, the video data volume pushed between the initial push stream time and the current time and the average push stream code rate of the target video, and if the push stream lag time exceeds the preset lag time, reducing the uploaded video data volume by the push stream server in a frame dropping mode.
And fourthly, the live broadcast server collects, codes and compresses the video and audio source to generate the website.
And the client accesses the generated website through an internal browser.
And sixthly, the client side watches live broadcast after the account information of the management terminal is verified.
Compared with the prior art, the invention has the beneficial effects that:
The application relates to a simple live-recording and broadcasting conference stream pushing technology, a live-broadcasting video stream pushing server can check the delay time of live-broadcasting video stream pushing in live broadcasting, the amount of uploaded video data is reduced by using a frame dropping mode, a user can live under the condition that a network is not good, the situation that serious delay phenomenon or skip broadcasting occurs when the user watches the live broadcasting is avoided, when the network situation is detected to be gradually improved, the frame dropping is stopped, a set management terminal can carry out account information verification on audiences who watch on line, and the investigation is completed by displaying the online situation.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a flow chart of the present invention;
In the figure: the system comprises a video acquisition device 1, an audio acquisition device 2, a director system terminal 3, a management terminal 4, a live broadcast server 5, a stream pushing server 6, a client 7, a storage module 8, an account number information verification module 9, a check-in module 10 and a frame dropping coding frame removing module 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
referring to fig. 1-2, the present invention provides a technical solution: a simple stream pushing technology for a direct recording and broadcasting conference comprises a video acquisition device 1, an audio acquisition device 2, a broadcasting guide system terminal 3, a management terminal 4, a live broadcasting server 5, a stream pushing server 6 and a client 7, wherein the video acquisition device 1 is used for providing a live broadcasting video source; the audio acquisition equipment 2 is used for acquiring a live audio source; the directing system terminal 3 is used for integrating an audio source and a video source, uploading the audio source and the video source to the live broadcast server 5, and then storing the audio source and the video source; the push stream server 6 is configured to determine whether a push stream delay time exceeds the preset delay time, and if the push stream delay time exceeds the preset delay time, reduce the amount of the uploaded video data by adopting a frame dropping manner; the management terminal 4 is used for displaying the online condition of each user; and the live broadcast server 5 is used for acquiring, coding and compressing a video source so as to provide a live broadcast source.
In addition, the push server 6 determines whether the push delay duration exceeds the preset delay duration according to the initial push moment of the uploaded video, the amount of video data pushed between the initial push moment and the current moment, and the average push code rate of the target video. And the push flow server 6 detects that the push flow lag time length is reduced to be within the preset lag time length and stops dropping frames. The video acquisition equipment 1 and the audio acquisition equipment 2 are connected with the director system terminal 3 through SDI lines and audio lines. The preset lag time set by the plug flow server 6 can be calculated according to the total data amount cached at present and the current real-time rate to set the time by itself. The storage module 8 is arranged in the director system terminal 3, and the storage module 8 can transmit data with external storage equipment through a data interface. An account information verification module 9 is arranged in the management terminal 4, and live broadcast can be watched only after account information verification is completed. The management terminal 4 displays the real-time online condition of the client 7 and is provided with a check-in module 10. A frame dropping coded frame removing module 11 is arranged in the stream pushing server 6 and is used for removing the frame dropping video data volume coded frames from the buffer queue of the sending end.
The simple live-recorded and broadcast conference streaming technology is characterized by comprising the following steps of:
Firstly, a video acquisition device 1 and an audio acquisition device 2 are turned on, and the video acquisition device 1 and the audio acquisition device 2 acquire and transmit an audio source and a video source to a program guide system terminal 3.
Secondly, the broadcast guiding system terminal 3 integrates the audio source and the video source, uploads the audio source and the video source to the live broadcast server 5 and then stores the audio source and the video source.
Thirdly, the stream pushing server 6 judges whether the stream pushing delay time length exceeds the preset delay time length or not according to the initial stream pushing time of the uploaded video, the video data volume pushed between the initial stream pushing time and the current time and the average stream pushing code rate of the target video, and if the stream pushing delay time length exceeds the preset delay time length, the stream pushing server 6 reduces the uploaded video data volume in a frame dropping mode.
and fourthly, the live broadcast server 5 collects, codes and compresses the video and audio source to generate the website.
The client 7 accesses the generated website through an internal browser.
Sixthly, the client 7 watches live broadcast after the account information of the management terminal 4 is verified.
And calculating the accumulation amount according to the addition rule according to the number of each type of coding frame in the push flow buffer queue and the weight of each type. The method can firstly determine how many key frames are in a buffer queue, for example, an I frame of an intra-frame in the H264 video compression coding standard, wherein the I frame represents a key frame, the I frame is a full-frame compression coding frame, full-frame image information is subjected to JPEG compression coding and transmission, the information amount of data occupied by the I frame is large, and the I frame is used for reconstructing a complete image without referring to other pictures to generate the reconstructed complete image when decoding, and motion vectors are not required to be considered.
then determining how many non-key frames are in the buffer queue, such as a forward predictive coding frame P frame and a bidirectional predictive interpolation coding frame B frame in the H264 video compression coding standard, where the P frame represents the difference between the frame and a previous key frame or P frame, and when decoding, the difference defined by the frame needs to be superimposed on the previously buffered picture to generate a final picture, i.e. a difference frame, and the P frame has no complete picture data, but only data different from the picture of the previous frame. The P frame is a reference frame of the I frame, a predicted value and a motion vector of a certain point of the P frame are found in the I frame, and a predicted difference value and the motion vector are taken to be transmitted together. At the receiving end, the predicted value of a certain point of the P frame is found out from the I frame according to the motion vector and is added with the difference value to obtain a certain point sample value of the P frame, so that the complete P frame can be obtained. The B frame is a bidirectional difference frame, that is, the B frame records that the difference between the current frame and the previous and subsequent frames requires decoding the B frame, and obtains the final picture by overlapping the previous and subsequent pictures with the current frame data. The weight of an I frame may be considered to be set to 2, the weight of a P frame may be considered to be set to 1, and the weight of a B frame may be considered to be set to 1, and assuming that a queue has 10I frames, 20P frames, and 30B frames, the amount of accumulation of the queue may be calculated as: 10 × 2+20 × 1+30 × 1 ═ 70. And determining that the frame before the first video coding key frame to the last video coding key frame in the buffer queue is a frame-loss buffer segment. If the discarded packet belongs to the I frame in the GOP of the H264 coding group, traversing the queue from the frame position backwards, and removing other P frame packets and B frame packets of the same GOP in the sending queue out of the queue together. If the discarded packet belongs to a P frame in an H264 coding group GOP, other P frames in the same GOP and dependent on the P frame are removed from the queue together with the B frame packet.
When the live conference, the in-process of transmitting the video source and the audio source that gather to the server, if the network is unstable, this application will meet with the mode that falls the frame and actually reduce the video data volume of uploading, make the user can also live under the not good condition of network, avoided the user to watch the serious delay phenomenon appear or the condition that the skip broadcast appears when directly broadcasting, thereby influence going on of meeting, when detecting the network situation and getting better gradually, just stop falling the frame. According to the method and the device, live data push streaming is carried out at a high push streaming accuracy rate through simple and fast operation steps, the real-time performance of a video live conference is improved, and the requirements for network environment and equipment are reduced.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A simple stream pushing technology for a direct recording and broadcasting conference is characterized in that: the live broadcasting system comprises a video acquisition device (1), an audio acquisition device (2), a broadcast directing system terminal (3), a management terminal (4), a live broadcasting server (5), a stream pushing server (6) and a client (7), wherein the video acquisition device (1) is used for providing a live broadcasting video source; the audio acquisition equipment (2) is used for acquiring a live audio source; the broadcasting guide system terminal (3) is used for integrating an audio source and a video source, uploading the audio source and the video source to a live broadcast server (5), and then storing the audio source and the video source; the stream pushing server (6) is used for judging whether the stream pushing delay time length exceeds the preset delay time length, and if the stream pushing delay time length exceeds the preset delay time length, reducing the amount of the uploaded video data by adopting a frame dropping mode; the management terminal (4) is used for displaying the online condition of each user; the live broadcast server (5) is used for collecting, encoding and compressing a video source to provide a live broadcast source; and the client (7) accesses the website by using an internally arranged browser to obtain the video and audio of the conference.
2. The streaming technology of claim 1, wherein the streaming server (6) determines whether the streaming delay duration exceeds the preset delay duration according to the initial streaming time of the uploaded video, the amount of video data to be pushed between the initial streaming time and the current time, and the average streaming code rate of the target video.
3. The easy live-talk and recorded-talk conference streaming technology according to claim 1 or 2, wherein the streaming server (6) stops dropping frames when detecting that the streaming delay duration falls within the preset delay duration.
4. The easy live-action and recorded-broadcast conference streaming technology according to claim 1, wherein the video capture device (1) and the audio capture device (2) are connected to the director system terminal (3) through an SDI line and an audio line.
5. The simple streaming technology for the live-recorded and broadcast conference according to claim 1 or 2, wherein the preset delay time set by the streaming server (6) can be calculated according to the total data amount currently cached and the current real-time rate to set the time by itself.
6. The simple live-recorded and recorded broadcasting conference streaming technology according to claim 1, wherein a storage module (8) is disposed in the terminal (3) of the broadcasting system, and the storage module (8) is capable of transmitting data with an external storage device through a data interface.
7. The simple streaming technology for the live and recorded broadcasting conference according to claim 1, wherein an account information verification module (9) is arranged in the management terminal (4), and the live broadcasting can be watched only after account information verification is completed.
8. The simple live-recorded and broadcast conference streaming technology according to claim 1, wherein the management terminal (4) displays the real-time online condition of the client (7) and is provided with a check-in module (10).
9. The simple live-action and recorded-broadcast conference streaming technology according to claim 1, wherein a dropped frame encoded frame removal module (11) is disposed in the streaming server (6) and is configured to remove the dropped frame encoded frame of the video data amount from the buffer queue at the sending end.
10. The simple live-action and recorded-broadcast conference streaming technology of claim 1, comprising the following steps:
Opening a video acquisition device (1) and an audio acquisition device (2), and acquiring and transmitting an audio source and a video source to a program guide system terminal (3) by the video acquisition device (1) and the audio acquisition device (2).
And secondly, the broadcast guiding system terminal (3) integrates an audio source and a video source, uploads the audio source and the video source to the live broadcast server (5) and then stores the audio source and the video source.
and thirdly, the stream pushing server (6) judges whether the stream pushing delay time length exceeds the preset delay time length or not according to the initial stream pushing time of the uploaded video, the video data volume pushed between the initial stream pushing time and the current time and the average stream pushing code rate of the target video, and if the stream pushing delay time length exceeds the preset delay time length, the stream pushing server (6) reduces the uploaded video data volume in a frame dropping mode.
And fourthly, the live broadcast server (5) collects, codes and compresses the video source and generates a website.
And the client (7) accesses the generated website through an internal browser.
Sixthly, the client (7) watches live broadcast after the account information of the management terminal (4) is verified.
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| CN201910809534.1A CN110557647A (en) | 2019-08-29 | 2019-08-29 | Simple stream pushing technology for direct recording and broadcasting conference |
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| CN201910809534.1A CN110557647A (en) | 2019-08-29 | 2019-08-29 | Simple stream pushing technology for direct recording and broadcasting conference |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113824992A (en) * | 2020-06-19 | 2021-12-21 | 京东方科技集团股份有限公司 | Terminal and uploading method, server and monitoring method, medium, equipment and system |
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| CN109660879A (en) * | 2018-12-20 | 2019-04-19 | 广州虎牙信息科技有限公司 | Frame losing method, system, computer equipment and storage medium is broadcast live |
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| CN106998268A (en) * | 2017-04-05 | 2017-08-01 | 网宿科技股份有限公司 | A kind of optimization method and system and plug-flow terminal based on plug-flow terminal network situation |
| CN109660879A (en) * | 2018-12-20 | 2019-04-19 | 广州虎牙信息科技有限公司 | Frame losing method, system, computer equipment and storage medium is broadcast live |
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Application publication date: 20191210 |