CN108966024B - Audio and video stream transmission method, playback method, device and system - Google Patents
Audio and video stream transmission method, playback method, device and system Download PDFInfo
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- CN108966024B CN108966024B CN201711230477.9A CN201711230477A CN108966024B CN 108966024 B CN108966024 B CN 108966024B CN 201711230477 A CN201711230477 A CN 201711230477A CN 108966024 B CN108966024 B CN 108966024B
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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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention provides a transmission method, a playback method, a device and a system of audio and video streams, wherein the transmission method comprises the following steps: receiving a playback request of playing back a historical video sent by a mobile terminal; determining a historical video file needing to be played back according to the playback request; pushing a playback video stream request of the historical video file to a video networking terminal; after receiving a push success response fed back by the video networking terminal, sending a playback response of the historical video file to the mobile terminal; and pushing the transport stream of the historical video file to a video network terminal so as to facilitate the video network terminal to play the transport stream. The embodiment of the invention solves the problem that the audio and video stream taught by the operation cannot be pushed to the video network terminal for playback in the prior art, and improves the experience degree of a user on medical informatization.
Description
Technical Field
The invention relates to the technical field of surgical teaching, in particular to a transmission method, a playback method, a device and a system of audio and video streams.
Background
With the increase of the culture strength of the state on the medical and health talents, the recording and broadcasting requirements of the operation teaching and the medical viewing and watching system gradually become a hot spot of the information construction of hospitals in recent years.
At present, most of operation teaching and medical observation systems in the prior art realize video storage, teaching video file management and watching of historical operation videos of real-time operations on the basis of monitoring and video conference products through the internet, but the watching and the management can only be limited to watching and managing of a background PC (personal computer) end, and the watching and the management cannot be pushed to a video network terminal for playback and the like, so that the experience of users on medical informatization is reduced.
Therefore, how to push the history video of the surgical teaching to the terminal of the video network for playback is a technical problem to be solved by those skilled in the art at present.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a transmission method and a playback method of audio and video streams, so as to solve the technical problem that the experience of a user on medical informatization is reduced because the prior art cannot push a history video taught by an operation to a video network terminal for playback.
Correspondingly, the embodiment of the invention also provides a transmission device, a playback device and a playback system of the audio and video stream, which are used for ensuring the realization and the application of the method.
In order to solve the problems, the invention is realized by the following technical scheme:
a first aspect provides a method for transmitting audio and video streams, the method including:
receiving a playback request of playing back a historical video sent by a mobile terminal;
determining a historical video file needing to be played back according to the playback request;
pushing a playback video stream request of the historical video file to a video networking terminal;
after receiving a push success response fed back by the video networking terminal, sending a playback response of the historical video file to the mobile terminal;
and pushing the transport stream of the historical video file to a video network terminal so that the video network terminal can play the transport stream conveniently.
Optionally, the pushing the request of the playback video stream of the historical video file to the terminal of the video networking specifically includes:
and pushing a playback video stream request of the historical video file to a video network terminal through the 8F85 protocol.
Optionally, the method further includes:
sending a display request for setting a split screen mode to the video networking terminal;
receiving a display response for setting a split screen mode fed back by the video networking terminal;
the pushing the transport stream of the history video file to the video networking terminal so that the video networking terminal plays the transport stream specifically includes:
and pushing the transport stream of the multiple program sources of the historical video file to the video networking terminal so that the video networking terminal plays the transport stream of the multiple program sources according to the set split screen mode.
Optionally, after sending a display request for setting a split screen mode to the video networking terminal, the method further includes:
distributing a virtual terminal number for communicating with the video network terminal, wherein the virtual terminal number is bound to a network card connected with the video network in advance;
receiving a starting instruction for playing a historical video file sent by the mobile terminal;
the transmitting stream of the multiple program sources for pushing the historical video file to the video network terminal specifically comprises the following steps: and transmitting the transport stream of the multi-program source of the historical video file to the video network terminal according to the starting instruction and the distributed virtual terminal number.
Optionally, the method further includes:
receiving a stop instruction for stopping playing the historical video file sent by the mobile terminal;
and stopping sending the transport stream of the historical video file to the video network terminal according to the stop instruction.
A second aspect provides a method of playback of an audio-visual stream, the method comprising:
receiving a playback video stream request of a history video file pushed by a recording and playing server;
feeding back a push success response to the recording and broadcasting server;
receiving a transport stream for playing back the historical video file sent by the recording and playing server;
and playing the transport stream.
Optionally, after feeding back a push success response to the recording and playing server, the method further includes:
receiving a display request for setting a split screen mode sent by the recording and broadcasting server network;
setting a split screen mode according to the display request;
the receiving of the transport stream for playing back the historical video file sent by the recording and playing server specifically includes: receiving a transport stream of a multi-program source for playing back the historical video file, which is sent by the recording and playing server;
the playing the transport stream specifically includes: and playing the transport stream according to the set split screen mode.
A third aspect provides an apparatus for transmitting audio and video streams, the apparatus comprising:
a first receiving unit, configured to receive a playback request for playing back a history video sent by a mobile terminal;
the determining unit is used for determining the historical video files needing to be played back according to the playback request;
the first sending unit is used for pushing a playback video stream request of the historical video file to a video networking terminal;
the second receiving unit is used for receiving a push success response fed back by the video networking terminal;
the second sending unit is used for sending a playback response of the historical video file to the mobile terminal after the second receiving unit receives the push success response;
and the third sending unit is used for pushing the transport stream of the historical video file to the video networking terminal so that the video networking terminal can play the transport stream conveniently.
Optionally, the first sending unit is specifically configured to push a playback video stream request of the historical video file to the video networking terminal through an 8F85 protocol.
Optionally, the apparatus further comprises:
the fourth sending unit is used for sending a display request for setting a split screen mode to the video networking terminal;
the third receiving unit is used for receiving a display response for setting the split screen mode fed back by the video networking terminal;
the second sending unit is specifically configured to, after the third receiving unit receives a display response of setting a split screen mode fed back by the video networking terminal, push the transport stream of the multiple program sources of the historical video file to the video networking terminal, so that the video networking terminal plays the transport stream of the multiple program sources according to the set split screen mode.
Optionally, the apparatus further comprises:
the distribution unit is used for distributing a virtual terminal number communicated with the video network terminal after the fourth sending unit sends a display request for setting a split screen mode to the video network terminal, wherein the virtual terminal number is bound to a network card connected with the video network in advance,
a fourth receiving unit, configured to receive a start instruction of playing the history video file sent by the mobile terminal;
the third sending unit is specifically configured to send, according to the start instruction and according to the virtual terminal number allocated by the allocating unit, a transport stream of a multi-program source of the history video file to the video networking terminal.
Optionally, the apparatus further comprises:
a fifth receiving unit, configured to receive a stop instruction for stopping playing the historical video file sent by the mobile terminal;
and the fourth sending unit is used for stopping sending the transport stream of the historical video file to the video network terminal according to the stop instruction.
A fourth aspect provides an apparatus for playback of audio and video streams, the apparatus comprising:
the recording and playing system comprises a first receiving unit, a second receiving unit and a control unit, wherein the first receiving unit is used for receiving a playback video stream request of a history video file pushed by a recording and playing server;
the first sending unit is used for feeding back a push success response to the recording and broadcasting server;
the second receiving unit is used for receiving the transmission stream which is sent by the recording and playing server and used for playing back the historical video file;
and the playing unit is used for playing the transport stream.
Optionally, the apparatus further comprises:
the third receiving unit is used for receiving a display request for setting a split screen mode, which is sent by the recording and broadcasting server network, after the first sending unit feeds back a push success response to the recording and broadcasting server;
the setting unit is used for setting a split screen mode according to the display request;
the second receiving unit is specifically configured to receive a transport stream of a multi-program source that plays back the history video file and is sent by the recording and playing server;
the playing unit is specifically configured to play the transport stream of the multi-program source according to a set split-screen mode.
A fifth aspect provides a system for playback of audio-visual data, the system comprising:
the recording and playing server is used for receiving a playback request of playing back the historical video sent by the mobile terminal through the Internet, determining the historical video file to be played back according to the playback request, and sending a playback video stream request of the historical video file to the video network server;
the video network server is used for forwarding the playback video stream request to a video network terminal through the video network when receiving the playback video stream request sent by the recording and broadcasting server;
the video networking terminal is used for sending a push success response to the video networking server when receiving the playback video stream request sent by the video networking server;
the video network server is further configured to forward the push success response to the recording and playing server after receiving the push success response sent by the video network terminal, and forward the transport stream to the video network terminal when receiving the transport stream of the history video file pushed by the recording and playing server;
and the video networking terminal is also used for playing the transport stream when receiving the transport stream.
Optionally, the recording and playing server is further configured to send a display request for setting a split screen mode to the video networking terminal through the video networking server;
the video network terminal is also used for setting a split screen mode when receiving a display request for setting the split screen mode sent by the recording and broadcasting server;
the recording and broadcasting server is further used for sending a multi-program-source transport stream for playing back the historical video file to the video networking terminal through the video networking server;
and the video networking terminal is also used for playing the transport stream of the multi-program source according to the set split screen mode when receiving the transport stream of the multi-program source.
Compared with the prior art, the embodiment of the invention has the following advantages:
in the embodiment of the invention, when receiving a history video file playback request sent by a mobile terminal, a recording and playing server firstly determines a history video file to be played back, then a video network terminal pushes a playback video stream request, and after receiving a push success response sent by the video network terminal, feeds back a playback response of the history video file to the mobile terminal, and finally pushes a transport stream of the history video file to the video network terminal, and the video network terminal plays the received transport stream. That is to say, in the embodiment of the present invention, the recording and playing server sends the audio/video stream (for example, the audio/video stream for the surgical teaching) to the terminal of the video network through the video network for playing, which solves the problem that the audio/video stream for the surgical teaching cannot be pushed to the terminal of the video network for playback in the prior art, and improves the experience of the user on the medical informatization.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a flowchart of a transmission method of audio and video streams according to an embodiment of the present invention;
fig. 2 is a flowchart of a playback method of audio and video streams according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for transmitting audio and video streams according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of an apparatus for transmitting audio/video streams according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of an apparatus for transmitting audio/video streams according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of an apparatus for transmitting audio/video streams according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a playback apparatus of audio and video streams provided by an embodiment of the present invention;
fig. 8 is another schematic structural diagram of a playback apparatus of audio and video streams provided by an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a playback system of audio and video streams provided by 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.
Before the embodiment of the invention is introduced, the video networking is introduced briefly, and the video networking has a special network characteristic, is a data transmission network realized by adopting a two-layer network protocol, and is a network completely without an IP concept. Communication interaction, data transmission and the like among the devices in the video network depend on protocol addressing to realize interconnection and intercommunication. That is to say, the video networking is the higher grade form of internet, is a real-time network, can realize the whole net high definition video real-time transmission that present internet can't realize, pushes numerous internet application to high definition video ization, and the high definition is face-to-face. It can be seen that based on such network characteristics, the video network can provide performance indexes of large bandwidth, high efficiency, low delay, and the like. Due to these technical characteristics, the service requirement of multi-party access of the surgical medical video conference can be supported.
The audio and video playback (such as operation teaching playback) provided by the embodiment of the invention is based on a video networking architecture, and a complete video networking network environment needs to be established, and the method comprises the following steps: the video network server and video network terminal, and the exchange route network equipment used for connecting the circuit, still need to deploy the recorded broadcast server with network protocol conversion, etc., the recorded broadcast server supports the double network card, one end connects the video network, another end connects the internet, as the bridge that the internal video network interacts with external internet equipment, finish internal and external communication, data transmission, etc. by it. And the recording and broadcasting server is configured with virtual terminal numbers capable of communicating with the video network terminal, and the virtual terminal numbers are bound to a network card connected with the video network.
Based on the above video networking architecture, please refer to fig. 1, which is a flowchart of a method for transmitting audio and video streams provided by the embodiment of the present invention, specifically, the method may include the following steps:
step 101: receiving a playback request of playing back a historical video sent by a mobile terminal;
in this step, a user may create a record for playing back an audio/video stream for surgical teaching through a mobile terminal (e.g., a mobile phone, an iPad, etc.), that is, the mobile terminal initiates a playback request of a historical audio/video (e.g., a historical surgical teaching video) through the internet, and when the recording and playing server receives the playback request of the historical video sent by the mobile terminal through the internet, the recording and playing server notifies the selected video network terminal through the video network that the historical video is ready to be played back.
Step 102: determining a historical video file needing to be played back according to the playback request;
in this step, the recording and playing server determines a historical video file (such as an operation teaching video file) to be played back according to the received playback request, and in the determining manner, the historical video file stored in a database of another server local or connected to the recording and playing server may be searched according to the keyword or the title of the historical video in the playback request, so as to determine the historical video file to be played back.
In this embodiment, each surgical teaching record is stored in the database of the recording and broadcasting server, or in the database of the server connected to the recording and broadcasting server. In the storage process, every time a record is stored, the recording and broadcasting server records the corresponding operation teaching name, the start time and the end time, the file name and the storage address stored in the operation teaching video file (namely, the historical video file), and the like. Based on the operation teaching video file, the corresponding operation teaching record and the file name and the storage address stored in the corresponding operation teaching video file can be searched from the database according to the keywords or the titles, so that the operation teaching history video file can be searched. It should be noted that, in all embodiments of the present invention, the history video file is an instant history video file.
Step 103: pushing a video stream request for playing back the historical video file to a video networking terminal;
in the step, the recording and broadcasting server sends a video stream request for playing back the historical video file to the video networking terminal through the video networking server. In particular, the video streaming request of the historical video file can be pushed to the video networking terminal through a video networking protocol (such as 8F85 protocol). The 8F85 protocol is well known to those skilled in the art and will not be described in detail herein.
It should be noted that the video network terminal in this embodiment is a video network terminal that is registered in advance and authorized, and is managed by the video network server in a unified manner, and records the device number, name, and addressing address of each video network terminal.
Some of the video networking terminals in the embodiment are arranged in an operating room, are connected with different medical equipment (namely video source equipment) and are used for inputting video signals, and are also connected with a high-definition digital television and are used for outputting and displaying audio and video signals; some of the devices are also arranged in other places, and are connected with a camera, a microphone and a high-definition digital television, so that audio and video signals are input and output through the cameras, the microphone and the high-definition digital television.
Step 104: after receiving a push success response fed back by the video networking terminal, sending a playback response of the historical video file to the mobile terminal;
in the step, the recording and broadcasting server receives a push success response fed back by the video network terminal through the video network server, and then sends a playback response of the history video file to the mobile terminal through the internet.
Step 105: pushing the transport stream of the historical video file to a video network terminal so that the video network terminal can play the transport stream conveniently;
in this embodiment, the recording and playing server pushes a Transport Stream (TS) of the history video file to the video network terminal through the video network server, so that the video network terminal plays the Transport Stream.
The fixed packet length of the transport stream TS is 188B, and the content of the TS is identified by a process identifier PID value, which is well known to those skilled in the art and will not be described herein.
In this embodiment, the recording and playing server is configured with dual network cards, a first network card is used for connecting with the video network, and a second network card is used for connecting with the internet. In addition, the recording and broadcasting server is provided with virtual terminal numbers capable of communicating with the video network terminals, and the virtual terminal numbers are bound to a network card connected with the video network. The aim is that the played back virtual terminal number receives the invitation of the video network conference and joins the video network conference during the playing back, and the video network server in the video network schedules the transport stream TS for the played back virtual terminal number, namely, the playing back of the historical audio and video stream is played back through the virtual terminal number.
In the embodiment of the invention, when receiving a historical video file playback request sent by a mobile terminal, a recording and playing server firstly determines a historical video file to be played back, then pushes a playback video stream request to a video network terminal, feeds back a playback response of the historical video file to the mobile terminal after receiving a push success response sent by the video network terminal, and finally pushes a transport stream of the historical video file to the video network terminal, and the video network terminal plays the received transport stream. That is to say, in the embodiment of the present invention, the recording and playing server sends the audio/video stream (for example, the audio/video stream for the surgical teaching) to the terminal of the video network through the video network for playing, which solves the problem that the audio/video stream for the surgical teaching cannot be pushed to the terminal of the video network for playback in the prior art, and improves the experience of the user on the medical informatization.
Optionally, in another embodiment, on the basis of the above embodiment, the method may further include:
the recording and broadcasting server sends a display request for setting a split screen mode to the video networking terminal and receives a display response for setting the split screen mode fed back by the video networking terminal; and then, pushing the transport stream of the multi-program source of the historical video file to the video networking terminal so that the video networking terminal can play the transport stream according to the set split screen mode.
That is to say, in this embodiment, the recording and playing server sends a display request for setting a split screen mode to the video networking terminal after receiving a push success response fed back by the video networking terminal, and pushes a transport stream of a multi-program source of the history video file to the video networking terminal after receiving a display response for setting a split screen mode fed back by the video networking terminal, so that the video networking terminal plays the transport stream according to the set split screen mode.
In the embodiment, the split screen mode is set, and modes such as two split screens, 4 split screens and 9 split screens are supported.
Optionally, in another embodiment, on the basis of the foregoing embodiment, after sending a display request for setting a split screen mode to the video networking terminal, the method may further include:
1) allocating a virtual terminal number for communicating with the terminal of the video network, wherein the virtual terminal number is bound to a network card connected with the video network in advance,
in the step, a recording and broadcasting server is pre-configured with virtual terminal numbers for communicating with the video network terminals, wherein one part of the virtual terminal numbers are used for recording audio and video streams, the other part of the virtual terminal numbers are used for broadcasting the audio and video streams, and the corresponding virtual terminal numbers are dynamically allocated according to the requirements of the audio and video streams each time.
2) The recording and broadcasting server receives a starting instruction of playing the historical video file sent by the mobile terminal;
in the step, after the recording and broadcasting server sends a playback response of the historical video file to the mobile terminal through the internet, a starting instruction for playing the historical video file sent by the mobile terminal to the recording and broadcasting server through the internet is received;
3) and the recording and broadcasting server sends the transmission stream of the multi-program source of the historical video file to the video network terminal according to the starting instruction and the distributed virtual terminal number.
In the step, the recording and broadcasting server sends the transport stream of the multi-program source of the historical video file to the corresponding video network terminal through the internet server according to the starting instruction and the distributed virtual terminal number.
Optionally, in another embodiment, on the basis of the above embodiment, the method may further include:
1) receiving a stop instruction for stopping playing the historical video file sent by the mobile terminal;
2) according to the stop instruction, stopping sending the transport stream for playing the historical video file to the video networking terminal;
3) and receiving a stop response of stopping playing the historical video file fed back by the video network terminal.
In this embodiment, when the recording and playing server receives a stop instruction for stopping playing the historical video file sent by the mobile terminal through the internet, the recording and playing server stops sending the transport stream for playing the historical video file to the video network terminal, that is, stops playing the audio/video stream. That is, one case is that the history video file is played once, and the other case is that the playable is stopped according to the user's demand, and the like.
In the above embodiment, how many virtual terminal numbers are configured on each recording and broadcasting server is preset, and the virtual short number is related to the number of operating rooms, and in general, each operating room corresponds to at least the first virtual terminal number. Wherein, a part of virtual terminal numbers are used for recording or storing TS files or audio and video streams, and a part of virtual terminal numbers are used for playing back the TS files or the audio and video streams.
The video network server uniformly manages a plurality of video network terminals which are registered and authorized, and stores the configuration of all the video network terminals which are registered and authorized, wherein the configuration comprises the following steps: the device number, name and addressing address of the video networking terminal.
In the embodiment of the invention, when receiving a history video file playback request sent by a mobile terminal, a recording and playing server firstly determines a history video file to be played back, then sends a playback video stream request to a video network terminal, feeds back a playback response of the history video file to the mobile terminal after receiving a push success response sent by the video network terminal, finally sends a display request for setting a split screen mode to the video network terminal and dynamically allocates a virtual terminal number for communicating with the video network terminal, and when receiving a start instruction sent by the mobile terminal, pushes a transport stream of a multi-program source of the history video file to the video network terminal, and the video network terminal plays the received transport stream of the multi-program source. That is to say, in the embodiment of the present invention, the recording and playing server sends the audio/video stream of multiple program sources (for example, the audio/video stream for surgical teaching) to the terminal of the video network through the video network to play according to the set split-screen mode, which solves the problem that the audio/video stream for surgical teaching cannot be pushed to the terminal of the video network for playback in the prior art, and improves the experience of the user on medical informatization.
Referring to fig. 2, a flowchart of a method for playing back an audio/video stream according to an embodiment of the present invention is shown, where the method may include the following steps:
step 201: receiving a playback video stream request of a history video file pushed by a recording and playing server;
in this embodiment, the recording and playing server sends a playback video stream request of the historical video file to the video network server, and the video network server forwards the received playback video stream request to the video network terminal, that is, the video network terminal receives the playback video stream request of the historical video file sent by the recording and playing server through the video network server.
Step 202: feeding back a push success response to the recording and broadcasting server;
and when the video networking terminal receives the video streaming request, if the video streaming request is received, feeding back a push success response to the recording and broadcasting server through the Internet server.
Step 203: receiving a transport stream for playing back the historical video file sent by the recording and playing server;
and the video network terminal receives the transmission stream for replaying the historical video file sent by the recording and broadcasting server through the video network server.
Step 204: playing the transport stream;
in the step, after receiving the transport stream TS, the video network terminal removes the video network protocol header to obtain a mixed transport stream TS, and extracts the transport stream TS of each channel from the mixed transport stream, and then decodes and plays the transport stream TS.
It should be noted that, the video networking terminal in this embodiment may be one or multiple, and when there are multiple video networking terminals, some of the video networking terminals may be placed in an operating room, and may have access to different medical devices (i.e., video source devices) for inputting video signals, or may have access to a high-definition digital television for outputting and displaying video signals; still some place in other places, accessed camera, microphone and high definition digital television, through them carry out audio and video signal's input and output. And the input and output of the audio and video signals of all the video network terminals are controlled by the video network server.
In the embodiment of the invention, when a video network terminal receives a request for playing back a video stream of a historical video file, if the request for playing back the video stream is received, a successful pushing response is fed back to the recording and playing server, and when a transport stream for playing back the historical video file sent by the recording and playing server is received, the transport stream is played. In other words, in the embodiment of the invention, the video network terminal plays the video file when receiving the transport stream of the playback history video file sent by the recording and playing server, so that the problem that the audio and video stream taught by the operation cannot be pushed to the video network terminal for playback in the prior art is solved, and the experience degree of the user on medical informatization is improved.
Optionally, in another embodiment, on the basis of the foregoing embodiment, after feeding back a push success response to the recording and playing server, the method may further include:
1) receiving a display request for setting a split screen mode sent by the recording and broadcasting server network;
and after feeding back a push success response to the recording and broadcasting server through the video networking server, the video networking terminal receives a display request for setting a split screen mode, which is sent by the recording and broadcasting server through the video network server.
2) Setting a split screen mode according to the display request;
in this step, the video network terminal may set the display screen of the video network terminal to the 2-split screen mode, the 4-split screen mode, or the 9-split screen mode, etc. according to the display request.
3) Receiving a transport stream of a multi-program source for playing back the historical video file, which is sent by the recording and playing server;
and the video network terminal receives the transmission stream of the multi-program source for playing back the historical video file, which is sent by the recording and playing server, through the video network server.
4) And playing the transport stream according to the set split screen mode.
In the step, before playing the transmission stream according to the set split screen mode, the video network terminal decompresses the transmission stream to obtain multiple paths of audio and video data, removes a video network protocol header in each path of decompressed audio and video data (namely removes the content related to the video network protocol), then decodes the audio and video data without the video network protocol header according to a standard audio and video decoding mode to obtain corresponding multiple paths of audio and video signals, and finally plays each path of audio and video signals according to the set split screen mode.
In the above embodiment, each of the terminals in the video network should be all authorized to access the video network, and the video network server performs unified management, so that the video network server stores a configuration table of all the terminals in the video network, and the configuration table records the device numbers, names, addressing addresses, and the like of all the authorized terminals in the video network.
In the embodiment of the invention, when receiving the played back transport stream, the video network terminal plays back the transport stream according to the set split screen mode. The embodiment of the invention solves the problem that the audio and video stream taught by the operation can not be pushed to the video network for recording and playing back in the prior art, and improves the experience degree of a user on medical informatization.
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. 3, a schematic structural diagram of a transmission device for audio and video streams according to an embodiment of the present invention is shown, where the device may include: a first receiving unit 31, a determining unit 32, a first transmitting unit 33, a second receiving unit 34, a second transmitting unit 35 and a third transmitting unit 36, wherein,
a first receiving unit 31 for receiving a playback request for playing back a history video transmitted by a mobile terminal;
a determining unit 32, configured to determine, according to the playback request, a history video file that needs to be played back;
the first sending unit 33 is configured to, after the determining unit determines the history video file that needs to be played back, push a playback video stream request of the history video file to a video network terminal; specifically, the first sending unit 33 is configured to push a playback video stream request of the historical video file to the video network terminal through an 8F85 protocol;
a second receiving unit 34, configured to receive a push success response fed back by the video networking terminal;
a second sending unit 35, configured to send a playback response of the historical video file to the mobile terminal after the second receiving unit 34 receives the push success response;
a third sending unit 36, configured to push the transport stream TS of the history video file to the video network terminal after the second sending unit 35 sends the playback response of the history video file to the mobile terminal, so that the video network terminal plays the transport stream.
Optionally, in another embodiment, on the basis of the above embodiment, the apparatus may further include: a fourth transmitting unit 41 and a third receiving unit 42, the schematic structure of which is shown in fig. 4,
a fourth sending unit 41, configured to send a display request for setting a split screen mode to the video networking terminal;
a third receiving unit 42, configured to receive a display response for setting the split screen mode fed back by the video networking terminal;
the second sending unit 35 is specifically configured to, after the third receiving unit 42 receives the display response of the video networking terminal fed back by setting the split screen mode, push the transport stream of the multiple program sources of the history video file to the video networking terminal, so that the video networking terminal plays the transport stream of the multiple program sources according to the set split screen mode.
Optionally, in another embodiment, on the basis of the above embodiment, the apparatus may further include: a distribution unit 51 and a fourth receiving unit 52, which are schematically shown in fig. 5, wherein,
an allocating unit 51, configured to allocate a virtual terminal number for communicating with the video network terminal after the fourth sending unit 41 sends a display request for setting a split screen mode to the video network terminal, where the virtual terminal number is pre-bound to a network card connected to the video network,
a fourth receiving unit 52, configured to receive a start instruction of the play history video file sent by the mobile terminal;
the third sending unit 36 is specifically configured to send, according to the start instruction and according to the virtual terminal number allocated by the allocating unit 51, a transport stream of a multi-program source of the history video file to the video network terminal.
Optionally, in another embodiment, on the basis of the above embodiment, the apparatus may further include: a fifth receiving unit 61 and a fourth transmitting unit 62, which are schematically shown in fig. 6, wherein,
a fifth receiving unit 61, configured to receive a stop instruction for stopping playing the history video file sent by the mobile terminal;
and a fourth sending unit 62, configured to stop sending the transport stream of the historical video file to the video network terminal according to the stop instruction.
Optionally, the audio/video stream transmission device may be integrated in the recording and playing server, or may be deployed independently, which is not limited in this embodiment.
Referring to fig. 7, a schematic structural diagram of a playback apparatus of audio and video streams provided in an embodiment of the present invention is shown, where the apparatus includes: a first receiving unit 71, a first transmitting unit 72, a second receiving unit 73, and a playing unit 74, wherein,
a first receiving unit 71, configured to receive a playback video stream request of a history video file pushed by a recording and playing server;
a first sending unit 72, configured to feed back a push success response to the recording and playing server;
a second receiving unit 73, configured to receive a transport stream for playing back the history video file sent by the recording and playing server;
a playing unit 74, configured to play the transport stream.
Optionally, in another embodiment, on the basis of the above embodiment, the apparatus may further include: a third receiving unit 81 and a setting unit 82, which are schematically shown in fig. 8, wherein,
a third receiving unit 81, configured to receive a display request for setting a split screen mode, which is sent by the recording and broadcasting server network, after the first sending unit 72 feeds back a push success response to the recording and broadcasting server;
a setting unit 82 configured to set a split screen mode according to the display request;
the second receiving unit 73 is specifically configured to receive a transport stream of a multi-program source for playing back the history video file, which is sent by the recording and playing server, after the setting unit 82 sets the split screen mode;
the playing unit 74 is specifically configured to play the transport stream of the multiple program sources according to the set split-screen mode.
Optionally, the playback device of the audio/video stream may be integrated in a terminal of a video networking, or may be deployed independently, which is not limited in this embodiment.
Referring to fig. 9, a schematic structural diagram of a playback system of audio and video streams provided in an embodiment of the present invention is shown, where the system includes: the recording and broadcasting system comprises a recording and broadcasting server 91, a video network server 92 and a video network terminal 93, wherein the recording and broadcasting server 91, the video network server 92 and the video network terminal 93 are respectively connected through a video network, and the recording and broadcasting system can further comprise a mobile terminal 90 connected with the recording and broadcasting server 91 through the internet. In this embodiment, there may be a plurality of video network terminals 93, and this embodiment takes one video network terminal as an example. Wherein the content of the first and second substances,
the mobile terminal 90 is configured to send a playback request for playing back a historical video to the recording and playing server 91 through the internet;
the recording and playing server 91 is configured to receive a playback request for playing back a historical video, which is sent back by the mobile terminal 90, determine a historical video file to be played back according to the playback request, and send a playback video stream request of the historical video file to the video network server 92;
the video network server 92 is configured to forward the playback video stream request to the video network terminal 93 through the video network when receiving the playback video stream request sent by the recording server 91;
the video network terminal 93 is configured to send a push success response to the video network server 92 when receiving the playback video stream request sent by the video network server 92;
the video network server 92 is further configured to forward the push success response to the recording and playing server 91 after receiving the push success response sent by the video network terminal 93, and forward the transport stream to the video network terminal 93 when receiving the transport stream of the history video file pushed by the recording and playing server 91;
the video network terminal 93 is further configured to play the transport stream when receiving the transport stream.
Alternatively, in another embodiment, which is the basis for the above-described embodiment,
the recording and broadcasting server 91 is further configured to send a display request for setting a split screen mode to the video networking terminal 93 through the video networking server 92;
the video network terminal 93 is further configured to set a split screen mode when receiving a display request for setting the split screen mode sent by the recording and broadcasting server 91;
the recording and broadcasting server 91 is further configured to send a transport stream of a multi-program source for playing back the historical video file to the video network terminal 93 through the video network server 92;
the video networking terminal 93 is further configured to play the transport stream of the multiple program source according to a set split screen mode when receiving the transport stream of the multiple program source.
In the embodiment of the invention, when receiving a history video file playback request sent by a mobile terminal, a recording and playing server firstly determines a history video file to be played back, then a video network terminal pushes a playback video stream request, and after receiving a push success response sent by the video network terminal, feeds back a playback response of the history video file to the mobile terminal, and finally pushes a transport stream of the history video file to the video network terminal, and the video network terminal plays the received transport stream. That is to say, in the embodiment of the present invention, the recording and playing server sends the audio and video stream (for example, the audio and video stream for surgical teaching) to the terminal of the video network through the video network for playback, so as to solve the problem that the audio and video stream for surgical teaching cannot be pushed to the terminal of the video network for playback in the prior art, and improve the experience of the user on medical informatization.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method 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, system, 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 or systems, 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 transmission method of the audio and video stream, the recording method and device of the audio and video stream and the recording system of the audio and video stream provided by the invention are introduced in detail, and specific examples are applied in the text to explain the principle and the implementation mode of the invention, and the description of the above embodiments is only used for helping to understand 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 (11)
1. A method for transmitting audio/video streams, comprising:
receiving a playback request of playing back a historical video sent by a mobile terminal;
searching historical video files stored in a local database of a recording and broadcasting server or databases of other servers connected with the recording and broadcasting server according to keywords or titles of the historical videos in the playback request, and determining the searched historical video files as the historical video files needing to be played back;
pushing a playback video stream request of the historical video file to a video networking terminal;
after receiving a push success response fed back by the video networking terminal, sending a playback response of the historical video file to the mobile terminal;
sending a display request for setting a split screen mode to the video networking terminal;
receiving a display response for setting a split screen mode fed back by the video networking terminal;
and pushing the transport stream of the historical video file to a video networking terminal so that the video networking terminal can play the transport stream, wherein the transport stream of a plurality of program sources of the historical video file is pushed to the video networking terminal so that the video networking terminal can play the transport stream of the plurality of program sources according to a set split screen mode.
2. The method according to claim 1, wherein the request for pushing the playback video stream of the historical video file to the video networking terminal specifically comprises:
and pushing a playback video stream request of the historical video file to a video network terminal through the 8F85 protocol.
3. The method according to claim 1, wherein after sending a display request for setting a split screen mode to the video networking terminal, the method further comprises:
distributing a virtual terminal number for communicating with the video network terminal, wherein the virtual terminal number is bound to a network card connected with the video network in advance;
receiving a starting instruction for playing a historical video file sent by the mobile terminal;
the transmitting stream of the multiple program sources for pushing the historical video file to the video network terminal specifically comprises the following steps: and transmitting the transport stream of the multi-program source of the historical video file to the video network terminal according to the starting instruction and the distributed virtual terminal number.
4. The method of claim 3, further comprising:
receiving a stop instruction for stopping playing the historical video file sent by the mobile terminal;
and stopping sending the transport stream of the historical video file to the video network terminal according to the stop instruction.
5. A playback method of audio and video stream is characterized in that the method is applied to a video network terminal and comprises the following steps:
receiving a playback video stream request of a historical video file pushed by a recording and playing server, wherein the historical video file is stored in a local database of the recording and playing server or a database of another server connected with the recording and playing server, the historical video file is determined by the recording and playing server according to a playback request of playing back the historical video sent by a mobile terminal, and the playback request comprises keywords or a title of the historical video;
feeding back a push success response to the recording and broadcasting server;
receiving a display request for setting a split screen mode sent by the recording and broadcasting server;
setting a split screen mode according to the display request, and sending a display response for setting the split screen mode to the recording and broadcasting server;
receiving a transport stream of a multi-program source for playing back the historical video file, which is sent by the recording and playing server;
and playing the transport stream of the multi-program source according to the set split screen mode.
6. An apparatus for transmitting audio/video stream, comprising:
a first receiving unit, configured to receive a playback request for playing back a history video sent by a mobile terminal;
a determining unit, configured to search, according to the keyword or the title of the historical video in the playback request, a historical video file stored in a local database of a recording and playing server or a database of another server connected to the recording and playing server, and determine the searched historical video file as a historical video file to be played back;
the first sending unit is used for pushing a playback video stream request of the historical video file to a video networking terminal;
the second receiving unit is used for receiving a push success response fed back by the video networking terminal;
the second sending unit is used for sending a playback response of the historical video file to the mobile terminal after the second receiving unit receives the push success response;
the fourth sending unit is used for sending a display request for setting a split screen mode to the video networking terminal;
the third receiving unit is used for receiving a display response for setting the split screen mode fed back by the video networking terminal;
and the third sending unit is used for pushing the transport stream of the historical video file to the video networking terminal so that the video networking terminal can play the transport stream, wherein after the third receiving unit receives a display response which is fed back by the video networking terminal and sets a split screen mode, the transport stream of multiple program sources of the historical video file is pushed to the video networking terminal so that the video networking terminal can play the transport stream of the multiple program sources according to the set split screen mode.
7. The apparatus of claim 6,
the first sending unit is specifically configured to push a playback video stream request of the historical video file to the video networking terminal through an 8F85 protocol.
8. The apparatus of claim 6, further comprising:
the distribution unit is used for distributing a virtual terminal number communicated with the video network terminal after the fourth sending unit sends a display request for setting a split screen mode to the video network terminal, wherein the virtual terminal number is bound to a network card connected with the video network in advance,
a fourth receiving unit, configured to receive a start instruction of playing the history video file sent by the mobile terminal;
the third sending unit is specifically configured to send, according to the start instruction and according to the virtual terminal number allocated by the allocating unit, a transport stream of a multi-program source of the history video file to the video networking terminal.
9. The apparatus of claim 8, further comprising:
a fifth receiving unit, configured to receive a stop instruction for stopping playing the historical video file sent by the mobile terminal;
and the fourth sending unit is used for stopping sending the transport stream of the historical video file to the video network terminal according to the stop instruction.
10. A playback device of audio and video stream is characterized in that the playback device is applied to a video network terminal and comprises:
the recording and playing device comprises a first receiving unit, a second receiving unit and a playing unit, wherein the first receiving unit is used for receiving a playback video stream request of a historical video file pushed by a recording and playing server, the historical video file is stored in a local database of the recording and playing server or a database of another server connected with the recording and playing server, the historical video file is determined by the recording and playing server according to a playback request of playing back the historical video sent by a mobile terminal, and the playback request comprises keywords or titles of the historical videos;
the first sending unit is used for feeding back a push success response to the recording and broadcasting server;
the third receiving unit is used for receiving a display request for setting a split screen mode, which is sent by the recording and broadcasting server, after the first sending unit feeds back a push success response to the recording and broadcasting server;
the setting unit is used for setting a split screen mode according to the display request and sending a display response for setting the split screen mode to the recording and broadcasting server;
the second receiving unit is used for receiving the transport stream of a plurality of program sources for playing back the historical video file, which is sent by the recording and playing server;
and the playing unit is used for playing the transport stream of the multi-program source according to the set split screen mode.
11. A system for playing back audio and video streams, comprising:
the recording and broadcasting server is used for receiving a playback request of playing back historical videos sent by a mobile terminal through the Internet, searching historical video files stored in a local database of the recording and broadcasting server or databases of other servers connected with the recording and broadcasting server according to keywords or titles of the historical videos in the playback request, determining the searched historical video files as the historical video files needing to be played back, and sending a playback video stream request of the historical video files to the video network server;
the video network server is used for forwarding the playback video stream request to a video network terminal through the video network when receiving the playback video stream request sent by the recording and broadcasting server; the video networking terminal is used for sending a push success response to the video networking server when receiving the playback video stream request sent by the video networking server;
the video network server is further configured to forward the push success response to the recording and playing server after receiving the push success response sent by the video network terminal, and forward the transport stream to the video network terminal when receiving the transport stream of the history video file pushed by the recording and playing server;
the recording and broadcasting server is also used for sending a display request for setting a split screen mode to the video networking terminal through the video networking server;
the video network terminal is also used for setting a split screen mode when receiving a display request for setting the split screen mode sent by the recording and broadcasting server;
the recording and broadcasting server is further used for sending a multi-program-source transport stream for playing back the historical video file to the video networking terminal through the video networking server;
and the video networking terminal is also used for playing the transport stream of the multi-program source according to the set split screen mode when receiving the transport stream of the multi-program source.
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| CN109768964B (en) * | 2018-12-13 | 2022-03-29 | 视联动力信息技术股份有限公司 | Audio and video display method and device |
| CN109819214B (en) * | 2019-01-25 | 2021-02-09 | 视联动力信息技术股份有限公司 | Video split-screen method and device |
| CN110475090B (en) * | 2019-08-05 | 2021-04-27 | 视联动力信息技术股份有限公司 | Conference control method and system |
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