CN110022297B - High-definition video live broadcast system - Google Patents
High-definition video live broadcast system Download PDFInfo
- Publication number
- CN110022297B CN110022297B CN201910157609.2A CN201910157609A CN110022297B CN 110022297 B CN110022297 B CN 110022297B CN 201910157609 A CN201910157609 A CN 201910157609A CN 110022297 B CN110022297 B CN 110022297B
- Authority
- CN
- China
- Prior art keywords
- video
- module
- stream
- protocol
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L65/70—Media network packetisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
Abstract
The invention discloses a high-definition video live broadcast system, which comprises: the system comprises a video acquisition module, an HEVC (high efficiency video coding) compression coding module, an RTP (real time protocol) encapsulation stream pushing module, a multi-network transmission module, a user interaction module and a system management module; the video acquisition module is used for acquiring high-definition video original image streams, preprocessing the acquired high-definition video original images and then sending the preprocessed high-definition video original images to the HEVC compression coding module or directly outputting the preprocessed high-definition video original images to an LCD display screen; the HEVC compression coding module compresses and codes a high-definition video image stream and then sends the high-definition video image stream to an RTP (real-time transport protocol) protocol encapsulation stream pushing module; the RTP protocol encapsulation stream pushing module encapsulates the video bare stream and outputs the video bare stream to the multi-network transmission module; and the multi-network transmission module fragments and packs the RTP packet data according to the destination address and the port and then sends the RTP packet data to the destination host. The invention improves the compatibility of the system to the resolution ratio of an input source based on the design of the HI3519 chip, and simultaneously improves the network adaptability of the system based on the multi-network transmission module designed by the open source video.
Description
Technical Field
The invention relates to the field of live video, in particular to a high-definition live video system.
Background
With the development of the network era, the way for people to acquire information tends to be more immediate, and especially the demand for live broadcasting is increasingly vigorous. The traditional broadcast-level live broadcast equipment is complex in structure, difficult in equipment construction and high in requirement on the professional performance of a user. The traditional mobile phone live broadcast has the defects of low definition, insufficient stability, incapability of accessing high-definition camera equipment and the like, so that the traditional mobile phone live broadcast cannot be qualified in scenes with high live broadcast definition and strict stability requirements. Therefore, a high-definition video live broadcast system which is easy to carry, easy to use by non-professional users and adaptable to various scenes is urgently needed to be researched and developed.
Disclosure of Invention
The invention provides a high-definition video live broadcast system for overcoming the defects of low compatibility of video live broadcast equipment to input source resolution and weak equipment adaptability in the prior art.
The present invention aims to solve the above technical problem at least to some extent.
The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:
a high definition video live broadcast system, the system comprising: the system comprises a video acquisition module, an HEVC (high efficiency video coding) compression coding module, an RTP (real time protocol) encapsulation stream pushing module, a multi-network transmission module, a user interaction module and a system management module;
the video acquisition module is used for acquiring a high-definition video original image stream from a front-end camera, performing size preprocessing and noise reduction preprocessing on the acquired high-definition video original image, and inputting the preprocessed high-definition video image stream to the HEVC compression coding module or directly outputting the preprocessed high-definition video image stream to an LCD display screen;
the HEVC compression coding module is used for carrying out HEVC compression coding on the received high-definition video image stream according to preset coding parameters and inputting a video bare stream obtained by compression coding to an RTP protocol encapsulation stream pushing module;
the RTP protocol encapsulation stream pushing module is used for reading the video bare stream, analyzing video parameters, carrying out RTP protocol format encapsulation, and outputting the RTP packet data after encapsulation to the multi-network transmission module;
the multi-network transmission module carries out UDP/IP network protocol fragmentation and packaging on RTP packet data according to a destination address and a port, and sends the RTP packet of the fragmentation and packaging to a destination host in the Internet through each network card;
the user interaction module is used for the user to carry out parameter configuration and live command operation through a display screen interface;
the system management module is used for monitoring and managing the video acquisition module, the HEVC compression coding module, the RTP protocol encapsulation stream pushing module, the multi-network transmission module and the user interaction module.
Further, the size preprocessing comprises cutting and scaling the acquired high-definition video original image. The acquired high-definition video original image is subjected to scaling and cutting to enable the image to accord with preset parameters.
Further, the HEVC compression coding module is designed based on a HIS5119 chip and a media processing platform MPP, where the media processing platform includes: the video processing device comprises a video input unit, a video processing unit, a video coding unit and a video output unit; the method comprises the steps that channel binding is carried out on media processing platform MPP subunits before collection and coding are carried out on the high-definition live video, the channel binding is to establish an incidence relation among the subunits of the media processing platform MPP through binding of a data source by a data receiver, and after the channel binding, data generated by the data source are automatically sent to the receiver.
Further, the channel binding specifically includes: the video processing unit is bound with the video input unit and receives data from the video input unit; the video coding unit is bound with the video processing unit and receives data from the video processing unit;
the HEVC compression coding module processing process comprises the following steps: the video input unit is used for receiving the high-definition video images output by the video acquisition module, the video processing unit is used for processing shielding and covering in the received high-definition video image contents, the video coding unit is used for carrying out image coding on the processed video images, and the video output unit outputs video bare streams.
Further, the video coding unit comprises a coding channel sub-module and a coding protocol sub-module.
Further, the video bare stream data read from the buffer area of the high-definition video live broadcasting system by the RTP protocol encapsulation stream pushing module enters a data buffer queue inside the RTP protocol encapsulation stream pushing module, the video bare stream is written into the video encapsulation information through an RTP/RTCP multiplexer Muxer according to the timestamp and the frame type information, the video stream data written into the video encapsulation information is input into the RTP/RTCP protocol module for head encapsulation, the video stream data subjected to head encapsulation is transmitted to the UDP/IPprotocol module for UDP/IP protocol encapsulation, and finally the finally encapsulated video stream data is transmitted to the Internet through a network card.
Further, the multi-network transmission module realizes multi-network card link aggregation based on the original socket by modifying the open source FFmpeg video library, and the specific process is as follows: the method has the advantages that the mode of FFmpeg bottom layer network transmission is modified by self-defining the URLProtocol protocol of FFmpeg, and common sockets are changed into original sockets, so that a high-definition video live broadcast system can select a network card through which each frame of video data is sent, and a function of multi-network aggregation within a set time is realized by matching with a fast dynamic network card switching algorithm.
Further, the multi-network aggregation process is as follows: the method comprises the steps that video stream data written into video packaging information through an RTP/RTCP multiplexer Muxer are transmitted to a multi-network transmission module, the multi-network transmission module is in a protocol inside an FFmpeg, a self-defined UDP-like protocol module is added by modifying the protocol inside the FFmpeg, the video stream data with the packaged head is subjected to UDP/IP protocol packaging through the self-defined UDP-like protocol module to obtain video stream message data to be sent, and a sending function selects a proper network card through a current available network card array of a system to send the video stream message data to be sent to the Internet when sending the final video stream message data;
the multi-network transmission module performs network card routing selection on each video stream message data packet to be sent, the high-definition live video system performs network card switching according to the state of an available network card, each video stream message data packet to be sent is transmitted through a given network card outlet, the same video stream is distributed to different networks, each video stream is finally converged to a target host according to the same UDP/IP address according to the correct network routing in the internet, a stream receiving terminal of the video stream buffers and sequences according to the serial number in the video stream message data packet, an ordered video sequence stream is recovered, and the video sequence stream is decoded and displayed.
Furthermore, the available network card array is created by a high-definition video live broadcast system for real-time maintenance, when a new network is registered, the new network is added into the available network card array, and when the network loses connection, the network is deleted from the available network card array.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the invention improves the compatibility of the live broadcast system to the resolution of the input source by adopting the design based on the HI3519 chip, and simultaneously, the invention improves the network adaptability of the system by adopting the multi-network transmission module designed based on the open source video.
Drawings
Fig. 1 is a schematic diagram of a live system architecture.
Fig. 2 is a schematic view of a functional model of a video capture module.
Fig. 3 is a functional model diagram of a video coding module.
Fig. 4 is a schematic diagram of an RTP protocol encapsulation model.
Fig. 5 is a functional model diagram of a multi-network transmission module.
Figure 6 is a flow chart of MPP internal processing.
Fig. 7 is a core flow diagram of a coding module of the live broadcast system.
FIG. 8 is a flow chart of the encoding module process.
Fig. 9 is a main flowchart of FFmpeg processing.
Fig. 10 is a diagram illustrating a multilink selection.
Fig. 11 is a FFmpeg internal protocol encapsulation flow diagram.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the invention is a high-definition video live broadcast system which is based on haisi HI3519SOC, adopts Linux operating system, performs new generation high efficiency HEVC compression coding on the acquired high-definition video, packages the video based on real-time streaming media transport control protocol RTP/RTCP of FFmpeg open source video library, and transmits the video to the internet through Wi-Fi network, wired Ethernet network and 4G networks of three different operators, so as to realize the function of low-delay live broadcast of high-definition video under multiple networks. The high-definition video live broadcast system specifically comprises the following steps: the system comprises a video acquisition module, an HEVC (high efficiency video coding) compression coding module, an RTP (real time protocol) encapsulation stream pushing module, a multi-network transmission module, a user interaction module and a system management module;
as shown in fig. 2, the video capture module is configured to obtain a high-definition video original image stream from a front-end camera, and perform size preprocessing and noise reduction preprocessing on the captured high-definition video original image according to preset parameters, where the size preprocessing includes cutting and scaling the captured high-definition video original image. The acquired high-definition video original image is subjected to scaling and cutting to enable the image to accord with preset parameters.
Inputting the preprocessed high-definition video image stream into an HEVC (high efficiency video coding) compression coding module or directly outputting the preprocessed high-definition video image stream to an LCD (liquid crystal display) screen;
the HEVC compression coding module is used for carrying out HEVC compression coding on the received high-definition video image stream according to preset coding parameters and inputting a video bare stream obtained by compression coding to an RTP protocol encapsulation stream pushing module; as shown in fig. 3.
The RTP protocol encapsulation stream pushing module is used for reading the video bare stream, analyzing video parameters, carrying out RTP protocol format encapsulation, and outputting the RTP packet data after encapsulation to the multi-network transmission module;
as shown in fig. 4, the multi-network transmission module uses Linux-socket sockets to perform UDP/IP network protocol fragmentation and packet on RTP packet data according to a destination address and a port, and sends the RTP packet fragmented and packetized to a destination host in the internet through each network card;
as shown in fig. 5, the user interaction module is used for the user to perform parameter configuration and live command operation through the display screen interface;
the system management module is used for monitoring and managing the video acquisition module, the HEVC compression coding module, the RTP protocol encapsulation stream pushing module, the multi-network transmission module and the user interaction module.
The HEVC compression coding module described in this embodiment is designed based on a HIS5119 chip and a media processing platform MPP, and as shown in fig. 6, an internal processing flow of the media processing platform MPP is shown, where the media processing platform MPP includes: a video input unit (VI), a video processing unit (VPSS), a video encoding unit (VENC), a video output unit (VO); the method comprises the steps that channel binding is carried out on media processing platform MPP subunits before collection and coding are carried out on the high-definition live video, the channel binding is to establish an incidence relation among the subunits of the media processing platform MPP through binding of a data source by a data receiver, and after the channel binding, data generated by the data source are automatically sent to the receiver.
The channel binding specifically comprises: the video processing unit is bound with the video input unit and receives data from the video input unit; the video coding unit is bound with the video processing unit and receives data from the video processing unit;
the HEVC compression coding module processing process comprises the following steps: as shown in fig. 7, the video capture input receives video data by an ITU-r bt1120 interface of a video input unit of HI3519 and receives a high definition video image output by a video capture module, and the video processing unit is configured to perform cropping and scaling processing on occlusion and coverage in the received high definition video image content and then output the processed occlusion and coverage to the video encoding unit; as shown in fig. 8, the high-definition live video system on standby receives a coding instruction, the video coding unit obtains video coding parameters given by a user from a display screen, the video coding unit adjusts coding attributes and configurations, performs image coding on processed video images, and the video output unit outputs a video bare stream.
The invention discloses a real-time transport protocol (RTP) encapsulation stream pushing module and a multi-network transmission module which are both contained in a streaming media transmission module based on FFmpeg, wherein video bare stream data read from a buffer area of a high-definition video live broadcast system by the RTP encapsulation stream pushing module enters a data buffer queue inside the RTP encapsulation stream pushing module, the video bare stream is written in video encapsulation information through an RTP/RTCP multiplexer (real-time transport protocol/real-time transport control protocol) according to a time stamp and frame type information, the video encapsulation information is input into the RTP/RTCP protocol module for head encapsulation, the video stream data with the head encapsulated is transmitted to a User Datagram Protocol (UDP)/IPprotocol module for UDP/IP protocol encapsulation, and finally the finally encapsulated video stream data is transmitted to the internet through a network card.
As shown in fig. 9. The encapsulation nature of the RTP protocol is that the header defined by the RTP standard is generated by assigning values according to the information of the video stream. Mainly filling the information such as RTP load type, time stamp of video frame, sequence number, etc. The RTP only transmits video stream without controlling the video stream, the control is carried out by an RTCP protocol, a high-definition video live broadcast system periodically transmits RTCP messages, the RTCP messages usually occupy 5% of transmission bandwidth according to different configurations, and the RTCP has the main function of providing information of session quality or broadcast performance quality for application programs. Each RTCP packet carries not video data but link statistics of both parties of the communication. These information include the number of packets transmitted, the number of packets lost, and the jitter of packets, which reflect the current network conditions. The encapsulation of the RTP/RTCP protocol is part of the multiplexer muxer in FFmpeg, which implements the algorithm in accordance with standard official documentation, the invention directly using the interface of FFmpeg.
As shown in fig. 10, the multi-network transmission module modifies the open source FFmpeg video library to implement multi-network card link aggregation based on the original socket, and the specific process is as follows: the method has the advantages that the mode of FFmpeg bottom layer network transmission is modified by self-defining the URLProtocol protocol of FFmpeg, and common sockets are changed into original sockets, so that a high-definition video live broadcast system can select a network card through which each frame of video data is sent, and a function of multi-network aggregation within a set time is realized by matching with a fast dynamic network card switching algorithm.
The specific process of the multi-network aggregation is as follows: the method comprises the steps that video stream data written into video packaging information through an RTP/RTCP multiplexer Muxer are transmitted to a multi-network transmission module, the multi-network transmission module is in a protocol inside an FFmpeg, a self-defined UDP-like protocol module is added by modifying the protocol inside the FFmpeg, the video stream data with the packaged head is subjected to UDP/IP protocol packaging through the self-defined UDP-like protocol module to obtain video stream message data to be sent, and a sending function selects a proper network card through a current available network card array of a system to send the video stream message data to be sent to the Internet when sending the final video stream message data;
the multi-network transmission module performs network card routing on each video stream message data packet to be sent, the high-definition video live broadcast system performs network card switching according to the state of an available network card, as shown in fig. 11, the available network card array has a high-definition video live broadcast system established for real-time maintenance, when a new network is registered, the new network is added into the available network card array, and when the network loses connection, the network is deleted from the available network card array.
Each video stream message data packet to be sent is transmitted through a given network card outlet, the same video stream is distributed to different networks, each video stream is finally converged to a target host according to the same UDP/IP address and the correct network route in the Internet, a stream receiving terminal of the video stream buffers and sequences according to the serial number in the video stream message data packet, an ordered video sequence stream is restored, and the video sequence stream is decoded and displayed.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A high definition video live broadcast system, the system comprising: the system comprises a video acquisition module, an HEVC (high efficiency video coding) compression coding module, an RTP (real time protocol) encapsulation stream pushing module, a multi-network transmission module, a user interaction module and a system management module;
the video acquisition module is used for acquiring a high-definition video original image stream from a front-end camera, performing size preprocessing and noise reduction preprocessing on the acquired high-definition video original image, and inputting the preprocessed high-definition video image stream to the HEVC compression coding module or directly outputting the preprocessed high-definition video image stream to an LCD display screen;
the HEVC compression coding module is used for HEVC compression coding of received high-definition video image streams according to preset coding parameters, video bare streams obtained through compression coding are input into an RTP protocol encapsulation stream pushing module, the HEVC compression coding module is designed based on an HIS5119 chip and a media processing platform MPP, and the media processing platform comprises: the video processing device comprises a video input unit, a video processing unit, a video coding unit and a video output unit; the method comprises the steps that channel binding is carried out on media processing platform MPP subunits before collection and coding are carried out on the high-definition live video, the channel binding is to establish an incidence relation among the subunits of the media processing platform MPP through binding a data source by a data receiver, and after the channel binding, data generated by the data source is automatically sent to the receiver;
the channel binding specifically comprises: the video processing unit is bound with the video input unit and receives data from the video input unit; the video coding unit is bound with the video processing unit and receives data from the video processing unit;
the HEVC compression coding module processing process comprises the following steps: the video input unit is used for receiving the high-definition video images output by the video acquisition module, the video processing unit is used for processing the shielding and covering in the received high-definition video image contents, the video coding unit is used for carrying out image coding on the processed video images, and the video output unit is used for outputting video bare streams;
the RTP protocol encapsulation stream pushing module is used for reading the video bare stream, analyzing video parameters, carrying out RTP protocol format encapsulation, and outputting the RTP packet data after encapsulation to the multi-network transmission module;
the multi-network transmission module carries out UDP/IP network protocol fragmentation and packaging on RTP packet data according to a destination address and a port, and sends the RTP packet of the fragmentation and packaging to a destination host in the Internet through each network card;
the user interaction module is used for the user to carry out parameter configuration and live command operation through a display screen interface;
the system management module is used for monitoring and managing the video acquisition module, the HEVC compression coding module, the RTP protocol encapsulation stream pushing module, the multi-network transmission module and the user interaction module.
2. The system of claim 1, wherein the size preprocessing comprises cropping and scaling of the captured original high definition video image.
3. The system of claim 1, wherein the video coding unit comprises a coding channel sub-module and a coding protocol sub-module.
4. The system of claim 1, wherein the RTP Protocol encapsulation streaming module reads bare video data from a buffer of the high definition live video system into a data buffer queue inside the RTP Protocol encapsulation streaming module, writes the bare video data into video encapsulation information through an RTP/RTCP multiplexer Muxer according to a timestamp and frame type information, inputs the video data into the RTP/RTCP Protocol module for header encapsulation, transmits the video data after header encapsulation to a UDP/IP Protocol module for UDP/IP Protocol encapsulation, and finally transmits the finally encapsulated video data to the internet through a network card.
5. The system according to claim 4, wherein the multi-network transmission module implements original socket-based multi-network link aggregation by modifying an open source FFmpeg video library, and the specific process is as follows: the method has the advantages that the mode of FFmpeg bottom layer network transmission is modified by self-defining the URLProtocol protocol of FFmpeg, and common sockets are changed into original sockets, so that a high-definition video live broadcast system can select a network card through which each frame of video data is sent, and a function of multi-network aggregation within a set time is realized by matching with a fast dynamic network card switching algorithm.
6. The high definition video live broadcasting system according to claim 5, wherein the multi-network aggregation process is as follows: the method comprises the steps that video stream data written into video packaging information through an RTP/RTCP multiplexer Muxer are transmitted to a multi-network transmission module, the multi-network transmission module is in a protocol inside an FFmpeg, a self-defined UDP-like protocol module is added by modifying the protocol inside the FFmpeg, the video stream data with the packaged head is subjected to UDP/IP protocol packaging through the self-defined UDP-like protocol module to obtain video stream message data to be sent, and a sending function selects a proper network card through a current available network card array of a system to send the video stream message data to be sent to the Internet when sending the final video stream message data;
the multi-network transmission module performs network card routing selection on each video stream message data packet to be sent, the high-definition live video system performs network card switching according to the state of an available network card, each video stream message data packet to be sent is transmitted through a given network card outlet, the same video stream is distributed to different networks, each video stream is finally converged to a target host according to the same UDP/IP address according to the correct network routing in the internet, a stream receiving terminal of the video stream buffers and sequences according to the serial number in the video stream message data packet, an ordered video sequence stream is recovered, and the video sequence stream is decoded and displayed.
7. The system of claim 6, wherein the array of available network cards is created for real-time maintenance by the HDTV system, and when a new network is registered, the new network is added to the array of available network cards, and when the network loses connection, the network is deleted from the array of available network cards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157609.2A CN110022297B (en) | 2019-03-01 | 2019-03-01 | High-definition video live broadcast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157609.2A CN110022297B (en) | 2019-03-01 | 2019-03-01 | High-definition video live broadcast system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110022297A CN110022297A (en) | 2019-07-16 |
| CN110022297B true CN110022297B (en) | 2021-09-24 |
Family
ID=67189216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910157609.2A Active CN110022297B (en) | 2019-03-01 | 2019-03-01 | High-definition video live broadcast system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110022297B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800388A (en) * | 2020-06-09 | 2020-10-20 | 盐城网之易传媒有限公司 | Media information processing method and media information processing device |
| CN111756583B (en) * | 2020-07-07 | 2023-04-07 | 北京威林视讯科技有限公司 | Dual-code-stream video switching method and video switching system |
| CN111954019A (en) * | 2020-08-17 | 2020-11-17 | 西安微嗨互动信息科技有限公司 | Streaming media coding and decoding method and system for realizing low-delay ultrahigh-definition live broadcast |
| CN112261460B (en) * | 2020-10-19 | 2022-09-27 | 天津津航计算技术研究所 | PCIE (peripheral component interface express) -based multi-channel video decoding scheme design method |
| CN112423344A (en) * | 2020-10-27 | 2021-02-26 | 山东开创云计算有限公司 | Comprehensive management system based on data exchange and transmission encapsulation |
| CN112738642A (en) * | 2020-12-28 | 2021-04-30 | 广州赞赏信息科技有限公司 | Method for realizing multi-network card aggregation plug flow |
| CN112929742B (en) * | 2021-01-22 | 2022-07-26 | 东南大学 | Ultra-high-speed video stream control method and system based on NI millimeter wave system |
| CN112995134B (en) * | 2021-02-03 | 2022-03-18 | 中南大学 | Three-dimensional video streaming media transmission method and visualization method |
| CN113709518B (en) * | 2021-08-24 | 2023-11-28 | 天津津航计算技术研究所 | Real-time video transmission mode design method based on RTSP protocol |
| CN113726895B (en) * | 2021-08-31 | 2023-08-25 | 广州艾美网络科技有限公司 | File transmission method and device and network KTV system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2613541A1 (en) * | 2010-08-30 | 2013-07-10 | Nec Corporation | Server device, video image quality measurement system, video image quality measurement method and program |
| CN106454280A (en) * | 2016-12-03 | 2017-02-22 | 河池学院 | H.264 based network video transmission system |
| CN108174230A (en) * | 2017-12-29 | 2018-06-15 | 安徽国通亿创科技股份有限公司 | Audio and video live broadcast system based on elasticity distribution formula Streaming Media |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140079116A1 (en) * | 2012-09-20 | 2014-03-20 | Qualcomm Incorporated | Indication of interlaced video data for video coding |
-
2019
- 2019-03-01 CN CN201910157609.2A patent/CN110022297B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2613541A1 (en) * | 2010-08-30 | 2013-07-10 | Nec Corporation | Server device, video image quality measurement system, video image quality measurement method and program |
| CN106454280A (en) * | 2016-12-03 | 2017-02-22 | 河池学院 | H.264 based network video transmission system |
| CN108174230A (en) * | 2017-12-29 | 2018-06-15 | 安徽国通亿创科技股份有限公司 | Audio and video live broadcast system based on elasticity distribution formula Streaming Media |
Non-Patent Citations (1)
| Title |
|---|
| 《基于多协议融合的实时移动视频监控系统》;叶锋、傅燕云等;《计算机系统应用》;20150415;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110022297A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110022297B (en) | High-definition video live broadcast system | |
| KR102000666B1 (en) | Interface apparatus and method for transmitting and receiving media data | |
| CN108616722B (en) | Embedded high-definition video acquisition and data stream transmission system | |
| CN103501310B (en) | The control method that a kind of computer desktop based on videophone is shared | |
| CN105610824B (en) | A kind of screen sharing method based on screen mirror image and RTSP Streaming Media frame | |
| CN104954633A (en) | Live broadcasting instruction method, client and system | |
| US11223870B2 (en) | Method and device of transmitting and receiving ultra high definition video | |
| CN112804264B (en) | Method, system and equipment for self-adaptive switching of multiple coding standards and transmission interfaces | |
| CN104683863A (en) | Method and equipment for multimedia data transmission | |
| CN102263771B (en) | Mobile terminal, adapter as well as method and system for playing multi-media data | |
| CN108696720B (en) | Video scheduling system and method suitable for satellite communication | |
| US20110317921A1 (en) | Information processing equipment and method, and information processing system | |
| JPWO2011099254A1 (en) | Data processing apparatus and data encoding apparatus | |
| CN111641878A (en) | Three-dimensional model display method and device and electronic equipment | |
| KR101710011B1 (en) | Image data transmission and reception method and apparatus | |
| JP4949448B2 (en) | Network connector device | |
| CN111629277A (en) | Video data transmission method, device and computer readable storage medium | |
| JP5389528B2 (en) | Network decoder device | |
| US9729867B2 (en) | Wireless communication terminal and communication control method | |
| CN109104635A (en) | The method and system of instant delivery screen picture | |
| CN113950825A (en) | Data transmission method, data processing method, movable platform, terminal equipment and chip | |
| CN107172366A (en) | A kind of video previewing method | |
| WO2024060719A1 (en) | Data transmission methods, apparatus, electronic device, and storage medium | |
| CN111131785A (en) | MPEG-4 video transmission system based on DirectShow | |
| KR101839415B1 (en) | Image data transmission and reception method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |