CN108965986B - Video recording and playing method and system - Google Patents
Video recording and playing method and system Download PDFInfo
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- CN108965986B CN108965986B CN201711481857.XA CN201711481857A CN108965986B CN 108965986 B CN108965986 B CN 108965986B CN 201711481857 A CN201711481857 A CN 201711481857A CN 108965986 B CN108965986 B CN 108965986B
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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]
- H04N21/40—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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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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]
- H04N21/40—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
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- 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
- H04N7/155—Conference systems involving storage of or access to video conference sessions
Abstract
The invention provides a video recording and broadcasting system, which is communicated with a video networking conference application program installed in a video networking terminal, and comprises a client and a server, wherein the server is used for: receiving a video Transport Stream (TS) stream sent by a video networking terminal, repackaging the TS stream to generate video data in a specified video format, and storing the video data in the specified video format; the client is used for: displaying a recorded video file identifier, detecting a trigger operation of a user for the video file identifier, acquiring video data of a specified video format corresponding to the trigger operation from the server when the trigger operation is detected, and playing the video data of the specified video format. The client and the server in the embodiment of the invention transmit the video data based on the video network, thereby improving the video transmission efficiency.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a video recording and playing method, a video recording and playing system and a video recording and playing device.
Background
The video networking is an important milestone for network development, is a higher-level form of the internet, is a real-time network, can realize the real-time transmission of full-network high-definition videos which cannot be realized by the internet at present, and pushes a plurality of internet applications to high-definition video, and high definition faces to face, so that a video networking conference based on the video networking technology is rapidly developed, and video recording and backup in the conference process are very important.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a video recording and playing method and a corresponding video recording and playing system and a video recording and playing apparatus that overcome or at least partially solve the above problems.
In order to solve the above problems, an embodiment of the present invention discloses a video recording and playing system, the video recording and playing system communicates with a video networking conference application installed in a video networking terminal, the video recording and playing system includes a client and a server, wherein,
the server is configured to: receiving a video Transport Stream (TS) stream sent by a video networking terminal, repackaging the TS stream to generate video data in a specified video format, and storing the video data in the specified video format;
the client is used for: displaying a recorded video file identifier, detecting a trigger operation of a user for the video file identifier, acquiring video data of a specified video format corresponding to the trigger operation from the server when the trigger operation is detected, and playing the video data of the specified video format.
Preferably, the server includes:
the extraction module is used for extracting audio data and/or video data from the TS stream;
the audio coding module is used for decoding and recoding the audio data to obtain the audio data in the high-level audio coding format;
the video coding module is used for decoding and recoding the video data to obtain the video data in the h264 format;
and the packaging module is used for packaging the audio data in the advanced audio coding format and/or the video data in the h264 format to obtain the video data in the specified video format.
Preferably, the server further comprises: and the network storage server is used for storing the video data in the specified video format, wherein the network storage server is mounted in the server.
Preferably, the client comprises a browser client.
Preferably, the browser client includes:
the login page display module is used for displaying a login page and receiving login information input by a user through the login page;
the file display module is used for displaying a file display interface when the login information is verified to be correct, wherein the file display interface comprises all recorded video file identifications acquired from the server;
the system comprises a detection module, a server and a display module, wherein the detection module is used for generating an information acquisition request based on a video file identifier corresponding to a specified operation when the specified operation of a user for a certain video file identifier is detected, and sending the information acquisition request to the server;
the information receiving module is used for receiving the access address returned by the server;
and the playing module is used for playing the video data corresponding to the access address by adopting a player.
Preferably, the video recording and playing system and the video networking conference application communicate through a video networking protocol.
The embodiment of the invention also discloses a video recording and playing method, which comprises the following steps:
receiving a video transport stream TS stream sent by a video networking terminal;
repackaging the TS stream to generate video data in a specified video format;
and storing the video data of the specified video format.
Preferably, the step of repackaging the TS stream to generate video data in a specific video format includes:
extracting audio data and video data from the TS stream;
decoding and recoding the audio data to obtain audio data in a high-level audio coding format;
decoding and recoding the video data to obtain h264 format video data;
and encapsulating the audio data in the advanced audio coding format and the video data in the h264 format to obtain the video data in the appointed video format.
Preferably, the method further comprises:
receiving an information acquisition request sent by a client, wherein the information acquisition request comprises a video file identifier;
searching the video file identification from all recorded files stored in a network storage server to obtain a corresponding access address;
and returning the access address to the client.
The embodiment of the invention also discloses a video recording and playing method, which comprises the following steps:
displaying the recorded video file identification;
detecting a trigger operation of a user for the video file identifier;
when the trigger operation is detected, acquiring video data of a specified video format corresponding to the trigger operation from a server;
and playing the video data in the specified video format.
The embodiment of the invention also discloses a video recording and playing method, which is applied to the video network and comprises the following steps:
starting a video networking conference through a video networking conference application program;
detecting the recording operation of a user in the process of the video networking conference;
when the recording operation is detected, recording the video networking conference to obtain a video Transport Stream (TS);
and sending the video transmission stream TS stream to a video recording and playing system through a video networking protocol.
The embodiment of the invention also discloses a video recording and playing device, which is applied to the video network and comprises:
the conference starting module is used for starting the video networking conference through the video networking conference application program;
the recording operation detection module is used for detecting the recording operation of the user in the video networking conference process;
the recording module is used for recording the video networking conference to obtain a video Transport Stream (TS) when the recording operation is detected;
and the video stream sending module is used for sending the video transport stream TS stream to a video recording and playing system through a video networking protocol.
The embodiment of the invention also discloses an interactive system, which comprises a memory, a processor, a computer program which is stored on the memory and can run on the processor, and the computer program which runs on the processor, wherein the steps of the method of the embodiment are realized when the processor executes the program.
The embodiment of the invention also discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program is used for realizing the steps of the method of the embodiment when being executed by a processor.
The embodiment of the invention has the following advantages:
the video recording and playing system provided by the embodiment of the invention provides a series of solutions for managing the video conference in a network, such as network recording, network storage, network on-demand, network playing and the like, and a user can watch videos only by a terminal capable of being networked, so that the user can record and play the videos conveniently.
Furthermore, the client and the server in the embodiment of the invention transmit the video data based on the video network, so that the video transmission efficiency is improved.
Furthermore, when the video recording and playing system of the embodiment of the invention records videos, the processes from recording to storing to playing are completed by the interaction between the client and the server, manual intervention is not needed, and manpower resources are saved.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
fig. 5 is a block diagram of a video recording and playing system according to an embodiment of the present invention;
FIG. 6 is a block diagram of a server embodiment of the present invention;
FIG. 7 is a block diagram of the architecture of a client embodiment of an embodiment of the present invention;
FIG. 8 is a schematic view of a file display interface according to an embodiment of the invention;
fig. 9 is a flowchart illustrating steps of a video recording and playing method according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating steps of a video recording and playing method according to another embodiment of the present invention;
fig. 11 is a flowchart illustrating steps of a video recording and playing method according to another embodiment of the present invention;
fig. 12 is a block diagram of a video recording and playing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network technology (network technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server technology (Servertechnology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues and may include two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the above characteristics of the video network, the core concept of the embodiment of the invention is provided: when a conference is started by using the Pamir, the Pamir can transmit a video TS stream to a video recording and playing system, the video recording and playing system receives the TS stream and then encapsulates the TS stream into an FLV video again, the FLV video is stored on a network storage server appointed by a server, meanwhile, the system is matched with a web version cms system, and a user can carry out video on demand or video review in a cms page.
Referring to fig. 5, a block diagram of a video recording and playing system according to an embodiment of the present invention is shown, where the video recording and playing system (which may be referred to as cms system for short) according to an embodiment of the present invention communicates with a video networking conference application installed in a video networking terminal, for example, the video networking conference application may be a Pamir application, and the video recording and playing system and the Pamir application may communicate through a video networking protocol. The following takes the communication between the Pamir application and the video recording and playing system as an example, and specifically describes the embodiment of the present invention:
the video recording and playing system in the embodiment of the present invention may include a client 100 and a server 200. Wherein the content of the first and second substances,
the server 200 is configured to: receiving a video Transport Stream (TS) stream sent by a video networking terminal, repackaging the TS stream to generate video data in a specified video format, and storing the video data in the specified video format;
the client 100 is configured to: displaying a recorded video file identifier, detecting a trigger operation of a user for the video file identifier, acquiring video data of a specified video format corresponding to the trigger operation from the server when the trigger operation is detected, and playing the video data of the specified video format.
Specifically, when a conference is started using the Pamir application, when media composition (i.e., a video recording function is started) is selected, for example, when a user clicks a recording button on the Pamir application, the Pamir application may transmit the video transport stream TS stream to the video recording and playing system through the video network.
The video recording and playing system receives the video TS stream through the server 200, and after receiving the video TS stream, the server 200 may split and repackage the video TS stream to generate video data in a specified video format, and store the video data in the specified video format.
In a preferred embodiment of the present invention, referring to the block diagram of the server embodiment shown in fig. 6, the server 200 may include the following modules:
an extracting module 2001, configured to extract audio data and/or video data from the TS stream;
specifically, the extracting module 2001 may extract audio data and video data according to a data format in the TS stream, where the audio data may be data having an audio format, and the video data may be data having a video format.
The audio format refers to the process of performing digital-to-analog conversion on a sound file to be played or processed in a computer. As an example, the audio format may include a CD format, a WAVE format, an MPEG format, an MP3 format, a WMA format, and the like.
The video format is an identifier given to a video file by video playing software in order to play the video file. As an example, the video format may include an AVI format, an MPEG format, a WMA format, and the like.
An audio encoding module 2002, configured to decode and re-encode the audio data to obtain audio data in an advanced audio encoding format;
after the extraction module 2001 extracts the audio data, the audio data may be sent to the audio encoding module 2002, and the audio data is decoded by the audio encoding module 2002 and then mixed and encoded into the audio data in the advanced audio encoding format, which may include the audio data in the AAC format, as an example.
AAC improves coding efficiency by combining with other functions, and its audio algorithm far exceeds some previous compression algorithms (such as MP3, etc.) in compression capacity, and it also supports up to 48 tracks, 15 low-frequency tracks, more sampling rate and bit rate, compatibility of multiple languages, and higher decoding efficiency. In summary, AAC can provide better sound quality with 30% smaller than MP3 files.
A video encoding module 2003, configured to decode and re-encode the video data to obtain video data in an h264 format;
after the extraction module 2001 extracts the video data, the video data may be sent to the video encoding module 2003, the video encoding module 2003 decodes the video data to obtain the YUV format, and then the video data in the YUV format is spliced and encoded into the video data in the H264 format.
YUV is a color coding method adopted by the european television system (which belongs to PAL (PAL system is a method of color coding in television broadcasting)), and is a color space adopted by PAL and SECAM (sekang system, meaning "in order to transmit colors and store") analog color television systems. In modern color television systems, a three-tube color camera or a color CCD camera is usually used for image capture, then the obtained color image signals are subjected to color separation and respective amplification and correction to obtain RGB, and then a luminance signal Y and two color difference signals B-Y (i.e., U) and R-Y (i.e., V) are obtained through a matrix conversion circuit, and finally a transmitting end respectively encodes the luminance signal and the color difference signals and transmits the encoded signals through the same channel. This color representation is called YUV color space representation. The importance of using the YUV color space is that its luminance signal Y and chrominance signal U, V are separate.
The H264 has the greatest advantage of high data compression ratio, and under the condition of equal image quality, the compression ratio of the H264 is more than 2 times of that of MPEG-2 and 1.5-2 times of that of MPEG-4. For example, if the original file size is 88GB, the original file size is 3.5GB after being compressed by MPEG-2 compression standard, the compression ratio is 25: 1, and the original file size is 879MB after being compressed by H264 compression standard, the compression ratio of H264 reaches 102: 1, the compression ratio of H264 is as high as that of H264, and Low Bit Rate (Low Bit Rate) plays an important role, compared with the compression technologies such as MPEG-2 and MPEG-4ASP, the H264 compression technology greatly saves the download time and data flow charge of users, and H264 has high-quality and smooth images while having high compression ratio.
The encapsulating module 2004 is configured to encapsulate the audio data in the advanced audio coding format and/or the video data in the h264 format to obtain video data in a specified video format.
After the audio coding module 2002 obtains the audio data in the AAC format, the audio data in the AAC format may be transmitted to the packaging module 2004, and after the video coding module 2003 obtains the video data in the H264 format, the video data in the H264 format may be transmitted to the packaging module 2004, so that the packaging module 2004 may package the audio data in the AAC format and the video data in the H264 format to obtain the video data in the specified video format.
As an example, the video data in the specified video format may include video data in flv (flash video) format. The FLV streaming media format is a video format developed along with the promotion of Flash MX. The video file can be watched on the network due to the fact that the file formed by the video file is extremely small and the loading speed is extremely high, and the video file can be effectively watched on the network.
The server may store the video data in the FLV format after obtaining the video data after splitting and repackaging based on the TS stream.
In a preferred embodiment of the present invention, the server further includes: and the network storage server is used for storing the video data in the specified video format, wherein the network storage server is mounted in the server.
In a specific implementation, after obtaining the video data in the FLV format, the server 200 may store the video data in a network storage server, for example, assuming that the video data obtained after repackaging is a file of a.flv, and when the video data is stored in a folder specified on the network storage server, the path may be "/mnt/a.flv".
In one implementation, the Network storage server may be mounted in the server 200 by means of NFS (Network File System), and after the mounting is successful, the server 200 may use a storage space of the Network storage server.
In practice, the network storage server may be an internet-based storage server.
In a preferred embodiment of the present invention, the video recording and playing system may be a web version system, and the client 100 may be a browser client, so that a user may perform video on demand or video review through a cms page without specially installing recording and playing software, thereby saving cost.
In a preferred embodiment of the present invention, referring to the block diagram of the structure of the client embodiment shown in fig. 7, the client 100 may include the following modules:
a login page display module 1001 configured to display a login page and receive login information input by a user through the login page;
in a specific implementation, after the user starts the video recording and playing system, the login page may be displayed to the user through the login page display module 1001, the user may input login information through the login page, when the login information input by the user is received, the video recording and playing system may check the login information through the identity check rule of the client 100 and/or the identity check rule of the server 200, when the check is passed, the user logs in the video recording and playing system, and when the check is not passed, an error prompt is displayed to the user.
The file display module 1002 is configured to display a file display interface when the login information is verified to be correct, where the file display interface includes all recorded video file identifiers acquired from the server;
after logging in the video recording and playing system, a file display interface may be displayed through the file display module 1002, as shown in the schematic diagram of the file display interface in fig. 8, the file display interface may include all recorded records acquired from the server 200, and each recorded record may include a video file identifier (i.e., a record name in fig. 8), a creation time, a creation user, a recording time (i.e., a recording duration), a current state (including recording completion, non-completion, and the like), and other functional operations (e.g., a playing operation indicated by a first icon, an editing operation indicated by a second icon, a deleting operation indicated by a third icon, and the like in fig. 8).
The detection module 1003 is configured to, when a specified operation of a user on a certain video file identifier is detected, generate an information acquisition request based on the video file identifier corresponding to the specified operation, and send the information acquisition request to a server;
after the file display interface is displayed, the detection module 1003 may detect an operation of the user in the file display interface, and when a specified operation of the user for a certain video file identifier is detected, for example, as shown in fig. 8, the specified operation may include that the user clicks an icon of a playing operation in a certain video record, and the detection module 1003 may generate an information acquisition request based on the video file identifier corresponding to the specified operation, and send the information acquisition request to the server 200.
After receiving the information acquisition request, the server 200 may extract a video file identifier from the information acquisition request, search the video file identifier in the network storage server, if the search is successful, obtain a storage address, i.e., an access address, recorded in the network storage server and corresponding to the video file identifier, and return the access address to the client 100; if the lookup is unsuccessful, the server 200 may generate failure response information and send the failure response information to the client 100.
An information receiving module 1004, configured to receive an access address returned by the server;
the client 100 can receive the access address returned by the server 200 through the information receiving module 1004, and then the information receiving module 1004 sends the access address to the playing module 1005, and the playing module 1005 plays or plays back the video.
A playing module 1005, configured to play, by using a player, the video data corresponding to the access address.
In one embodiment, the playing module 1005 may be a page player.
After receiving the access address, the playing module 1005 may access the server according to the access address to obtain corresponding video data, and perform video playing at the front end.
The video recording and playing system provided by the embodiment of the invention provides a series of solutions for managing the video conference in a network, such as network recording, network storage, network on-demand, network playing and the like, and a user can watch videos only by a terminal capable of being networked, so that the user can record and play the videos conveniently.
Furthermore, the client and the server in the embodiment of the invention transmit the video data based on the video network, so that the video transmission efficiency is improved.
Furthermore, when the video recording and playing system of the embodiment of the invention records videos, the processes from recording to storing to playing are completed by the interaction between the client and the server, manual intervention is not needed, and manpower resources are saved.
Referring to fig. 9, a flowchart illustrating steps of an embodiment of a video recording and playing method according to an embodiment of the present invention is shown, where the embodiment of the present invention is described from a server side, and specifically may include the following steps:
step S901, receiving a video transport stream TS stream sent by a video network terminal;
step S902, repackage the TS stream, produce the video data of the appointed video format;
and step S903, storing the video data in the specified video format.
In a preferred embodiment of the present invention, step S902 may further include the following sub-steps:
a substep S11 of extracting audio data and video data from the TS stream;
substep S12, decoding and recoding the audio data to obtain the audio data in the advanced audio coding format;
substep S13, decoding and recoding the video data to obtain h264 format video data;
and a substep S14, encapsulating the audio data in the advanced audio coding format and the video data in the h264 format to obtain video data in a specified video format.
In a preferred embodiment of the embodiments of the present invention, the method may further include the steps of:
receiving an information acquisition request sent by a client, wherein the information acquisition request comprises a video file identifier;
searching the video file identification from all recorded files stored in a network storage server to obtain a corresponding access address;
and returning the access address to the client.
As for the method embodiment of fig. 9, since it is basically similar to the system embodiment described above, the description is simple, and the relevant points can be referred to the partial description of the system embodiment.
Referring to fig. 10, a flowchart illustrating steps of another embodiment of a video recording and playing method according to an embodiment of the present invention is shown, where the embodiment of the present invention is described from a client side, and the client may include a browser client.
The embodiment of the invention specifically comprises the following steps:
step S1001, displaying the recorded video file identification;
step S1002, detecting a trigger operation of a user for the video file identifier;
step S1003, when the trigger operation is detected, acquiring video data of a specified video format corresponding to the trigger operation from a server;
step S1004, playing the video data in the specified video format.
In a preferred embodiment of the embodiments of the present invention, the method may further include the steps of:
displaying a login page and receiving login information input by a user through the login page;
when the login information is verified to be correct, displaying a file display interface, wherein the file display interface comprises all recorded video file identifications acquired from a server;
when the appointed operation of a user for a certain video file identification is detected, an information acquisition request is generated based on the video file identification corresponding to the appointed operation, and the information acquisition request is sent to a server;
receiving an access address returned by the server;
and playing the video data corresponding to the access address by adopting a player.
As for the method embodiment of fig. 10, since it is basically similar to the system embodiment described above, the description is simple, and the relevant points can be referred to the partial description of the system embodiment.
Referring to fig. 11, a flowchart illustrating steps of another embodiment of a video recording and playing method according to an embodiment of the present invention is shown, where the method is applied to a video network, and the embodiment of the present invention is described from a video network conference application side, where the embodiment of the present invention may specifically include the following steps:
step S1101, starting a video networking conference through a video networking conference application program;
step S1102, detecting the recording operation of a user in the video networking conference process;
step S1103, when the recording operation is detected, recording the video networking conference to obtain a video Transport Stream (TS);
and step S1104, sending the video transport stream TS stream to a video recording and playing system through a video networking protocol.
As for the method embodiment of fig. 11, since it is basically similar to the system embodiment described above, the description is simple, and the relevant points can be referred to the partial description of the system embodiment.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 12, a block diagram of an embodiment of a video recording and playing apparatus according to an embodiment of the present invention is shown, and the apparatus is applied to a video network, and may include the following modules:
a conference starting module 1201, configured to start a video networking conference through a video networking conference application;
the recording operation detection module is used for detecting the recording operation of the user in the video networking conference process;
a recording module 1202, configured to record the video networking conference when the recording operation is detected, so as to obtain a video transport stream TS stream;
and a video stream sending module 1203, configured to send the video transport stream TS stream to a video recording and playing system through a video networking protocol.
For the apparatus embodiment of fig. 12, since it is basically similar to the system embodiment described above, the description is simple, and for the relevant points, reference may be made to partial description of the system embodiment.
In addition, the embodiment of the invention also discloses an interactive system, which comprises a memory, a processor, a computer program which is stored on the memory and can run on the processor, and the computer program which runs on the processor, wherein the steps of the method of the embodiment are realized when the processor executes the program.
In addition, the embodiment of the invention also discloses a computer readable storage medium, on which a computer program is stored, and the program is executed by a processor to realize the steps of the method of the embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The video recording and playing method, device and system provided by the invention are described in detail, and the principle and implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A video recording and playing system, which communicates with a video networking conference application installed in a video networking terminal, comprises a client and a server, wherein,
the server is configured to: receiving a video Transport Stream (TS) stream sent by a video networking terminal, repackaging the TS stream to generate video data in a specified video format, and storing the video data in the specified video format;
the client is used for: displaying a recorded video file identifier, detecting a trigger operation of a user for the video file identifier, acquiring video data of a specified video format corresponding to the trigger operation from the server when the trigger operation is detected, and playing the video data of the specified video format;
the server includes:
the extraction module is used for extracting audio data and/or video data from the TS stream;
the audio coding module is used for decoding and recoding the audio data to obtain the audio data in the high-level audio coding format;
the video coding module is used for decoding and recoding the video data to obtain the video data in the h264 format;
the packaging module is used for packaging the audio data in the advanced audio coding format and/or the video data in the h264 format to obtain video data in a specified video format;
the client comprises:
the login page display module is used for displaying a login page and receiving login information input by a user through the login page;
the file display module is used for displaying a file display interface when the login information is verified to be correct, wherein the file display interface comprises all recorded video file identifications acquired from the server;
the system comprises a detection module, a server and a display module, wherein the detection module is used for generating an information acquisition request based on a video file identifier corresponding to a specified operation when the specified operation of a user for a certain video file identifier is detected, and sending the information acquisition request to the server;
the information receiving module is used for receiving the access address returned by the server;
and the playing module is used for playing the video data corresponding to the access address by adopting a player.
2. The video recording and playing system of claim 1, wherein said server further comprises: and the network storage server is used for storing the video data in the specified video format, wherein the network storage server is mounted in the server.
3. The video recording and playing system of claim 1, wherein said client comprises a browser client.
4. The video recording system of claim 1, wherein said video recording system and said video networking conferencing application communicate via a video networking protocol.
5. A video recording and playing method is applied to a server, and the method comprises the following steps:
receiving a video transport stream TS stream sent by a video networking terminal;
repackaging the TS stream to generate video data in a specified video format;
storing the video data of the specified video format;
the step of repackaging the TS stream to generate video data in a specified video format includes:
extracting audio data and video data from the TS stream;
decoding and recoding the audio data to obtain audio data in a high-level audio coding format;
decoding and recoding the video data to obtain h264 format video data;
and encapsulating the audio data in the advanced audio coding format and the video data in the h264 format to obtain the video data in the appointed video format.
6. The method of claim 5, further comprising:
receiving an information acquisition request sent by a client, wherein the information acquisition request comprises a video file identifier;
searching the video file identification from all recorded files stored in a network storage server to obtain a corresponding access address;
and returning the access address to the client.
7. A video recording and playing method is applied to a client side, and the method comprises the following steps:
displaying the recorded video file identification;
detecting a trigger operation of a user for the video file identifier;
when the trigger operation is detected, acquiring video data of a specified video format corresponding to the trigger operation from a server;
playing the video data of the specified video format;
the step of displaying the recorded video file identification comprises:
displaying a login page and receiving login information input by a user through the login page;
when the login information is verified to be correct, displaying a file display interface, wherein the file display interface comprises all recorded video file identifications acquired from a server;
when the trigger operation is detected, the step of acquiring the video data of the specified video format corresponding to the trigger operation from the server comprises the following steps:
when the appointed operation of a user for a certain video file identification is detected, an information acquisition request is generated based on the video file identification corresponding to the appointed operation, and the information acquisition request is sent to a server;
the step of playing the video data of the specified video format comprises:
and playing the video data corresponding to the access address returned by the server by adopting a player.
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