CN115225920A - Multi-camera multi-scene cloud support live broadcast system for mobile phone - Google Patents
Multi-camera multi-scene cloud support live broadcast system for mobile phone Download PDFInfo
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- CN115225920A CN115225920A CN202110423618.9A CN202110423618A CN115225920A CN 115225920 A CN115225920 A CN 115225920A CN 202110423618 A CN202110423618 A CN 202110423618A CN 115225920 A CN115225920 A CN 115225920A
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- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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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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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
-
- 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
- H04N21/43—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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- 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
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multi-camera multi-scene cloud support live broadcast system of a mobile phone, which comprises: the system comprises an anchor mobile phone, at least one slave mobile phone, a cloud standby broadcast server and a wireless network; the anchor mobile phone and the slave mobile phone can automatically form a network on a wireless network; when the anchor mobile phone is in live broadcasting, the anchor mobile phone can be switched to an appointed slave mobile phone at any time and any place, and the video stream pushed by the slave mobile phone is live broadcasted; when the anchor mobile phone is in live broadcasting, multimedia contents can be obtained from the cloud standby broadcasting server at any time and any place to replace live video streams of the anchor mobile phone; according to the technical scheme, when a user carries out live broadcasting, different scenes can be obtained through a plurality of slave broadcasting mobile phones, rich multimedia contents can be pre-compiled in a cloud standby broadcasting mode, and live broadcasting content switching can be flexibly completed between scene videos and cloud standby broadcasting multimedia contents.
Description
Technical Field
The invention relates to the field of video live broadcast and internet, in particular to a multi-camera multi-scene cloud support live broadcast system for a mobile phone.
Background
In order to realize the same live broadcast effect as a professional television station, a video needs to be shot in multiple angles and multiple scenes, and the shot video scenes are continuously switched during live broadcast, so that rich live broadcast content effect is realized. The television station is shot by multiple cameras and is realized by a video switching station and an editing system. The network cloud switching is a method for realizing multi-scene switching of videos at a cloud end, wherein multi-scene videos shot by a plurality of network cameras are all sent to the cloud end together, and switching and editing processing are carried out by professional equipment; however, the above solutions all have the problems of high equipment cost, more required professionals, high required professional skills and high cost, are difficult to bear by general users, and cannot be realized by mobile phone users; in addition, if the live broadcast content needs to be enriched, besides multi-machine-position multi-scene video switching, multimedia content needs to be inserted at any time and any place during live broadcast, which is difficult to achieve in the existing mobile phone live broadcast.
Disclosure of Invention
In order to effectively solve the problems, the invention discloses a multi-camera multi-scene cloud-supported live broadcast system of a mobile phone, which comprises: an anchor cell-phone, at least one from broadcasting cell-phone, at least one cloud standby broadcast server and wireless network:
the anchor mobile phone is used for video live broadcast, controlling switching between the slave mobile phone and the cloud standby broadcast server through an instruction, and receiving stream pushing from the slave mobile phone to the anchor mobile phone or acquiring cloud standby broadcast multimedia content from the cloud standby broadcast server;
the slave mobile phone is used for pushing the live video stream to the master mobile phone through a wireless network;
the cloud standby broadcast server is used for providing multimedia content storage and a URL list for registered users and pushing corresponding URL content to the anchor mobile phone according to an anchor mobile phone instruction;
the wireless network is used for wireless networking of the anchor mobile phone and the slave mobile phone, is connected with the cloud standby broadcast server and transmits live video streams and multimedia data;
according to one aspect of the invention, the anchor mobile phone and the slave mobile phone are connected through the wireless network and automatically form a live broadcast system;
preferably, the automatic networking of the anchor mobile phone and the slave mobile phone is realized by sending broadcast packets, the anchor mobile phone and the slave mobile phone send the broadcast packets when online, and the version number, the IP address and the role (the anchor mobile phone or the slave mobile phone) of the anchor mobile phone and the slave mobile phone are identified in the broadcast packets;
further, after receiving a broadcast packet sent by the anchor mobile phone, the slave mobile phone records the information of the anchor mobile phone and sends the broadcast packet to the anchor mobile phone to indicate that the broadcast packet is online, wherein the broadcast packet also comprises a software version number, an IP address and slave role information;
further, after receiving the broadcast packet sent by the slave broadcasting mobile phone, the master broadcasting mobile phone adds the online information, the software version number, the IP address, the role and the like of the slave broadcasting mobile phone into a slave broadcasting mobile phone list;
further, when the anchor mobile phone adds all the slave mobile phones into the slave mobile phone list, networking is completed;
according to another aspect of the invention, the live broadcast mobile phone is internally provided with an HTTP server, a camera in the live broadcast mobile phone continuously shoots videos, the videos collected by the camera are coded by a built-in coding module and then sent to the HTTP server cache array, and live broadcast video stream data are input first and output first;
preferably, when a video stream is live broadcast by a host mobile phone, the video stream is directly pushed to the live broadcast platform through the HTTP server according to a stream pushing address of the live broadcast platform;
preferably, when the live video stream of the anchor mobile phone is recorded to the local, the live video stream is directly written into a local video stream storage file;
preferably, when a live video of a main broadcast mobile phone is displayed on a local screen, the live video stream is decoded by a decoder and then displayed on the local screen;
according to another aspect of the invention, the anchor mobile phone can be switched to an appointed slave mobile phone through a control instruction at any time and any place during live broadcasting, or switched to the multimedia content of the cloud standby multimedia server;
preferably, when the anchor mobile phone sends a switching instruction to the designated slave mobile phone, the anchor mobile phone first obtains the slave mobile phone information from the slave mobile phone list, and then sends a streaming pushing request to the slave mobile phone, and the slave mobile phone pushes the streaming to the IP address anchor mobile phone after receiving the streaming pushing switching request sent by the anchor mobile phone;
further, an HTTP server is arranged in the slave mobile phone, after networking, videos collected by a camera of the slave mobile phone are continuously written into the HTTP server through encoding, and video stream data are input in first out; after receiving a stream pushing instruction of the anchor mobile phone, the slave mobile phone pushes the video stream of the HTTP server to an anchor mobile phone cache array to replace the live video stream of the live mobile phone;
further, when the anchor mobile phone controls the command to switch the live video to the cloud standby multimedia content, the anchor mobile phone directly obtains the multimedia content from the cloud standby server through the URL;
further, when the anchor mobile phone directly fetches multimedia contents from the cloud standby broadcast server, firstly, the multimedia contents are respectively in a format, such as HTTP, RTMP, JPEG and the like, and then the multimedia data are fetched to an anchor cache array of the anchor mobile phone HTTP server according to the multimedia format, so that the multimedia contents replace the live broadcast video stream;
according to another aspect of the present invention, the anchor mobile phone manipulation instruction may be a voice manipulation instruction, a gesture manipulation instruction, or a screen sliding instruction and a script control manner generated in a designated area on the anchor mobile phone;
further, the control command of the anchor mobile phone is identified by the command identification module, and the command execution module is used for completing the execution of the command;
compared with the prior art, the technical scheme of the invention has the following beneficial effects:
according to the technical scheme, when a mobile phone user plays the video directly, different scenes can be obtained through a plurality of slave play mobile phones, and the video scene switching can be flexibly completed among the scenes through a master play mobile phone;
the video multi-scene switching and the multimedia switching are realized by a plurality of mobile phones, and the method has the advantages of low cost and simple and convenient use;
according to the technical scheme, rich pre-programmed multimedia contents are provided for the user during live broadcasting through a cloud standby broadcasting switching mode, and seamless switching between a live video scene and the cloud standby broadcasting multimedia contents is flexibly achieved.
Drawings
Fig. 1 is a diagram of a multi-camera multi-scene cloud-supported live broadcast system of a mobile phone according to a preferred embodiment of the present invention;
fig. 2 is a working schematic diagram of a multi-camera multi-scene cloud-supported live broadcast system of a mobile phone according to a preferred embodiment of the present invention;
fig. 3 is a flowchart of an automatic networking of a master mobile phone and a slave mobile phone according to a preferred embodiment of the present invention;
fig. 4 shows a step of switching from the anchor handset to the slave video stream according to the preferred embodiment of the present invention;
fig. 5 is a flow chart illustrating a step of switching to a multimedia stream by an anchor handset according to a preferred embodiment of the present invention;
fig. 6 is a schematic diagram illustrating an execution of a command for controlling a mobile phone of an anchor according to a preferred embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below for clarity and completeness of description of the present invention, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments; based on the embodiments of the present invention, those skilled in the art can obtain all other embodiments without creative efforts, which belong to the protection scope of the present invention;
fig. 1 is a diagram of a multi-camera multi-scene cloud-supported live broadcast system of a mobile phone according to a preferred embodiment of the present invention; as shown in fig. 1, 1 is a wireless network (WiFi) of this embodiment, 2 is the anchor handset, 3 is the slave handset, 4 is the internet, and 5 is the cloud standby server; the system of the embodiment shown in fig. 1 includes two slave broadcast handsets 3,2 and 3 simultaneously connected to the same WiFi network 1; then 1 is connected to the internet 4, and 5 is also connected to 4; when the control instruction of the anchor mobile phone 2 switches the live stream from 2 to 3, the video stream of 3 is transmitted to 2 through 1; when the control instruction of the anchor mobile phone 2 switches the live video stream to the multimedia content, the anchor mobile phone 2 directly obtains the multimedia content from the server 4 through the URL;
fig. 2 is a working schematic diagram of a multi-camera multi-scene cloud-supported live broadcast system of a mobile phone according to a preferred embodiment of the present invention; as shown in fig. 2, 21 is a built-in HTTP server of the anchor handset, and a video signal acquired by a camera of the anchor handset is encoded by a built-in video encoder and then sent to a cache array of the anchor handset 21; 22 is an HTTP server built in the slave mobile phone, video signals collected from a camera of the slave mobile phone are coded by a built-in coding module and then sent to a cache array of the slave 22, and the coded video data are firstly input and firstly output; when the control command of the anchor mobile phone requires to be switched to the slave mobile phone, the video stream of 22 is sent into the buffer array of 21 through the wireless network; if the anchor mobile phone is pushing the stream to the live platform 27, 21 directly pushes the received 22 video stream to the live platform 27; if 21 the received video stream is to be stored, 21 directly writing the received 22 video stream to a local video file 26; if the video stream received at 21 is to be displayed locally on the anchor mobile phone, 21 sends the received video stream at 22 to 23 for decoding, and the decoded video signal is sent to a video display buffer area of 24 and then displayed through an anchor mobile phone screen 25;
fig. 3 is a flowchart of an automatic networking process for an anchor handset and a slave handset according to a preferred embodiment of the present invention; as shown in fig. 3, the networking includes the following steps:
s11, a master broadcast and a slave broadcast mobile phones on the same WiFi network segment send broadcast packets to the same network segment, wherein the characters of the broadcast packets comprise: IP address, software version and role (role is anchor or slave respectively);
s12, after receiving the broadcasting packet of the anchor mobile phone, the slave mobile phone also returns an online signal to the anchor mobile phone in a broadcasting mode, and the method comprises the following steps: IP address, software version and role;
s13, after receiving the on-line signal sent by the slave broadcasting mobile phone, the master broadcasting mobile phone adds the on-line information, the version number, the IP address and the role of the slave broadcasting mobile phone into a slave broadcasting mobile phone list;
s14, when the anchor mobile phone adds all the slave mobile phones into the slave mobile phone list, networking is completed;
fig. 4 is a step of switching the anchor handset to the slave video stream according to the preferred embodiment of the present invention; as shown in fig. 4, switching the anchor handset live video stream to the replay handset video stream includes the following steps:
s21, standby preparation of the slave broadcast mobile phone: the method comprises the following steps that camera data are sent to a local HTTP server after being subjected to video coding and compression (in an H.264 or H.265 video coding format) by a slave mobile phone, the HTTP server is provided with a cache array, and data are firstly input and firstly output;
s22, initiating an HTTP stream pushing request to the slave mobile phone by the anchor switching action;
s23, after receiving a streaming request of the anchor mobile phone, the slave mobile phone pushes the data in the local HTTP server to the anchor mobile phone;
s24, the anchor mobile phone receives the data pushed by the slave mobile phone and stores the data into the HTTP server cache array;
s25, judging whether to push the stream outwards by the anchor mobile phone; if the stream is pushed outwards, the received slave mobile phone data is directly forwarded without decoding;
s26, if the video is to be recorded, writing the received slave mobile phone playing data into a corresponding video file; if the data needs to be displayed, the received slave mobile phone data is decoded and written into a corresponding display cache region;
fig. 5 shows a step of switching to a multimedia stream by an anchor handset according to a preferred embodiment of the present invention; as shown in fig. 5, the switching of the anchor mobile phone live video stream to the multimedia stream includes the following steps:
s31, an anchor switching action sends a request for fetching the network multimedia file to the network multimedia content storage system and the cloud standby broadcast server;
s32, the cloud standby broadcast server sends corresponding URL multimedia format data, such as HTTP, RTMP, JPEG and the like, to an HTTP cache array of the anchor mobile phone;
s33, if the stream is pushed out, pushing the data to a specified address through an HTTP server of the anchor mobile phone;
s34, if the multimedia content needs to be displayed, decoding the multimedia content and writing the data into a corresponding display buffer area;
fig. 6 is a schematic diagram illustrating an execution of a command for controlling a mobile phone of an anchor according to a preferred embodiment of the present invention; as shown in fig. 6, 61 is an instruction collecting module, and according to the difference of the control method, in this embodiment, when the anchor mobile phone slides on the screen for control, the module may be an instruction collecting module that collects information of a specific area of the mobile phone screen and information of a screen sliding direction; when the gesture is used for controlling, the module is a camera and is used for collecting action information of a host; when the module is controlled by sound, the module is a microphone and collects sound instruction information; the instruction information collected by 61 is sent to an instruction identification module 62, and 62 is used for interpreting and releasing the control instruction; in this embodiment, when the screen is slid for control, the module interprets the instruction through the screen sliding area and the action direction; when the module is operated by gestures, the module is an artificial intelligent gesture recognition module; when the voice is used for control, the module is an artificial intelligent voice recognition module; the instruction decoded by 62 is directly sent to the instruction execution module 63 to complete the instruction execution;
although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (7)
1. A multi-camera multi-scene cloud support live broadcast system of a mobile phone is characterized by comprising: the system comprises an anchor mobile phone, at least one slave mobile phone, a cloud standby server and a wireless network.
2. The multi-camera multi-scene cloud-supported live broadcast system of the mobile phone as claimed in claim 1, wherein the anchor mobile phone and the slave mobile phone can be automatically networked in a broadcast manner; the anchor mobile phone and the slave mobile phone send out own IP address, software version number and role (anchor or slave) in a broadcasting mode, after the anchor mobile phone receives the slave mobile phone broadcasting signal, the information of the slave mobile phone is added into a slave mobile phone list, and when all online slave mobile phones are added into the list, networking is completed.
3. The multi-camera multi-scene cloud-supported live broadcast system of claim 1, wherein the live broadcast mobile phone can be optionally switched to a scene designated for live broadcast from a broadcast mobile phone camera or to multimedia content provided by a cloud standby broadcast server through an instruction.
4. The multi-camera multi-scene cloud-supported live broadcasting system of claim 1, wherein the live broadcasting mobile phone sends a stream pushing instruction to the slave broadcasting mobile phone when switching to a designated slave broadcasting mobile phone, and the slave broadcasting mobile phone pushes a stream to an HTTP server of the master broadcasting mobile phone after receiving the instruction; and when the live mobile phone is switched to the multimedia content of the cloud standby broadcast server, data is fetched from the cloud standby broadcast server through a preset URL.
5. The multi-position multi-scene cloud support live broadcasting system of the mobile phone as claimed in claim 1, wherein HTTP servers are built in both the anchor mobile phone and the slave mobile phone, and when the anchor mobile phone is broadcasted directly, the HTTP servers push streams to the anchor platform; after networking of a slave broadcasting mobile phone, after video coding is carried out on video shot by a camera of the slave broadcasting mobile phone, a sender sends the video to the HTTP server for standby broadcasting, and at the moment, video stream data of the HTTP server are firstly in and firstly out; when the slave mobile phone HTTP server receives a master mobile phone streaming pushing instruction, the HTTP server pushes the video stream to a cache array of the master mobile phone HTTP server to replace the video stream shot by the camera of the master mobile phone, and switching from the video stream of the master mobile phone to the video stream of the slave mobile phone is completed.
6. The system of claim 1, wherein the anchor handset steering command can be a voice steering command, a gesture steering command, or a screen sliding command generated in a designated area on the anchor handset.
7. The system of claim 1, wherein the anchor handset steering command is recognized by the command recognition module and is executed by the command execution module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423618.9A CN115225920A (en) | 2021-04-20 | 2021-04-20 | Multi-camera multi-scene cloud support live broadcast system for mobile phone |
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| CN202110423618.9A CN115225920A (en) | 2021-04-20 | 2021-04-20 | Multi-camera multi-scene cloud support live broadcast system for mobile phone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117793449A (en) * | 2024-02-23 | 2024-03-29 | 北京都是科技有限公司 | Video live broadcast and video processing method, device and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117793449A (en) * | 2024-02-23 | 2024-03-29 | 北京都是科技有限公司 | Video live broadcast and video processing method, device and storage medium |
| CN117793449B (en) * | 2024-02-23 | 2024-04-30 | 北京都是科技有限公司 | Video live broadcast and video processing method, device and storage medium |
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