CN109660843A - Vehicle-mounted real time playing method and system - Google Patents
Vehicle-mounted real time playing method and system Download PDFInfo
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- CN109660843A CN109660843A CN201811630483.8A CN201811630483A CN109660843A CN 109660843 A CN109660843 A CN 109660843A CN 201811630483 A CN201811630483 A CN 201811630483A CN 109660843 A CN109660843 A CN 109660843A
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- 230000004927 fusion Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
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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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- 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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4355—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving reformatting operations of additional data, e.g. HTML pages on a television screen
-
- 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
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
-
- 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
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/812—Monomedia components thereof involving advertisement data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Marketing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention relates to a kind of vehicle-mounted real time playing method and system, this method merges the ad data received with the video frame of real-time bit stream data, generates new video frame, and repacks slice and generate network flow.The present invention only needs simple network interface, it can transmit and play by cable, not need the conversion for carrying out HDMI interface and SDI interface, thus greatly reduce cost, and ad data does not have to need to be multiplexed into again inside code stream, convenient for the issuing of advertisement, iteration and update.
Description
Technical field
The present invention relates to vehicle-mounted broadcasting field more particularly to a kind of vehicle-mounted real time playing method and systems.
Background technique
On the onboard system of current many buses, it is all equipped with real time programme playing function, is provided to passenger real-time
Program play, facilitate passenger to watch, to passenger bring preferably by bus experience.
Currently, it is all by DTMB (Digital Television that the onboard system program of bus, which plays mostly,
Terrestrial Multimedia Broadcasting, digital TV ground broadcasting transmission) mode issued.In addition to
Real time programme usually can also carry multiple advertisement positions (comprising picture and text).The traditional mode of onboard system is by will be wide
The displaying for being multiplexed into and realizing advertisement in the code stream of DTMB is accused, still, this mode is unfavorable for the iteration and update of advertisement.Separately
Outside, due to onboard system be exported using SDI (digital component serial line interface) interface, and the output of majority DTMB at present in order to
Reaching high-definition effect is all to be exported by HDMI interface, therefore need to turn HDMI interface into SDI interface, could enable and show screen
Enough show (if directly using HDMI interface as output, signal decaying is more severe, is unfavorable for showing), and HDMI connects
Mouth turns the hardware interface of SDI interface, and price is higher, this increases cost with regard to very big.
Summary of the invention
In view of this, it is necessary to update, at high cost ask for the iteration that above-mentioned current onboard system is unfavorable for advertisement
Topic provides a kind of vehicle-mounted real time playing method and system.
The present invention provides a kind of vehicle-mounted real time playing method, includes the following steps:
S10: the real-time bit stream data and ad data that real-time reception front end issues；
S20: the video frame, audio-video and synchronization frame of real-time bit stream data are parsed；
S30: ad data is merged with the video frame of real-time bit stream data, generates new video frame；
S40: audio-video, synchronization frame and new video frame are repackaged into TS file, and TS file is subjected to slice change
At network flow；
S50: network flow is played out by the display screen that udp protocol is pushed to specified address.
Further, the step S30 specifically: regarded by the framebuffer of ad data and real-time bit stream data
Frequency frame is merged, and new video frame is generated.
Further, the step S50 specifically: distribute IP address, distribution using DHCP Server function for display screen
IP address correspond to the corresponding address UDP, play the network flow of the corresponding address UDP.
Further, the step S50 further include: install network streaming player on a display screen, pass through network stream broadcasting
Device plays the network flow of push.
Further, the step S50 further include: if the display screen of specified address is unable to playing network streaming, select again
The display screen of other addresses is selected, and the address UDP of converting network stream is matching, is pushed to other display screens and plays out.
The present invention provides a kind of vehicle-mounted real-time playing system, comprising:
Data reception module, the real-time bit stream data and ad data that real-time reception front end issues；
Data resolution module parses the video frame, audio-video and synchronization frame of real-time bit stream data；
Ad data is merged with the video frame of real-time bit stream data, generates new video frame by video fusion module；
Audio-video, synchronization frame and new video frame are repackaged into TS file by network flow generation module, and by TS file
It carries out slice and becomes network flow；
Network flow playing module plays out network flow by the display screen that udp protocol is pushed to specified address.
Further, framebuffer and real-time bit stream data video that the video fusion module passes through ad data
Frame is merged, and new video frame is generated.
Further, the network flow playing module is that display screen distributes IP address, distribution using DHCP Server function
IP address correspond to the corresponding address UDP, play the network flow of the corresponding address UDP.
Further, the network flow playing module installs network streaming player on a display screen, passes through network stream broadcasting
Device plays the network flow of push.
Further, if the display screen of specified address is unable to playing network streaming, the network flow playing module selects again
The display screen of other addresses is selected, and the address UDP of converting network stream is matching, is pushed to other display screens and plays out.
The vehicle-mounted real time playing method of the present invention and system, to the video frame of the ad data and real-time bit stream data that receive
It is merged, generates new video frame, and repacked slice and generate network flow, only needed simple network interface in this way, lead to
Crossing cable can transmit and play, and do not need the conversion for carrying out HDMI interface and SDI interface, thus greatly reduce cost,
And ad data does not have to need to be multiplexed into again inside code stream, convenient for the issuing of advertisement, iteration and update.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the vehicle-mounted real time playing method in one embodiment；
Fig. 2 is the structure chart of the vehicle-mounted real-time playing system in one embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the structure chart of the vehicle-mounted real time playing method in one embodiment；As shown in Figure 1, this method includes as follows
Step:
S10: the real-time bit stream data and ad data that real-time reception front end issues.
Real-time bit stream data is DTMB or other real-time bit stream datas.
S20: the video frame, audio-video and synchronization frame of real-time bit stream data are parsed.
After receiving real-time bit stream data and ad data, to enable ad data and real-time bit stream data to merge,
The video frame, audio-video and synchronization frame of real-time bit stream data will be parsed first, it is subsequent to be merged with ad data.
S30: ad data is merged with the video frame of real-time bit stream data, generates new video frame.
In the step, it is by the mode that ad data is merged with real-time bit stream data: by ad data
Framebuffer (frame buffering) is merged with real-time bit stream data video frame, generates new video frame.
S40: being repackaged into TS file (Transport Stream, TS) for audio-video, synchronization frame and new video frame,
And TS file is subjected to slice and becomes network flow.
After generating new video frame, audio-video, synchronization frame and new video frame are repackaged into TS file, realize advertisement
Data are merged with real-time bit stream data.For that can be transmitted to the TS file being fused into, TS file is subjected to slice and is become
Network flow, network flow only need simple network interface, can transmit and play by cable, do not need to carry out turning for interface
It changes.
S50: network flow is played out by the display screen that udp protocol is pushed to specified address.
It is that display screen distributes IP address using DHCP Server function, the IP address of distribution is corresponding corresponding in the step
The address UDP plays the network flow of the corresponding address UDP.Network flow is pushed to pre-assigned corresponding IP address by udp protocol
Display screen play out, to realize the broadcasting of real-time bit stream data and ad data.
Further, network streaming player is installed on a display screen, the network of push is played by network streaming player
Stream.There is no need to HDMI to turn SDI interface for display screen in this way, can greatly save cost.
Player after actuation, if playing out in preset time without network flow, is restarted and receives network again
Stream.
If being unable to playing network streaming due to display screen failure and other reasons, then the step further include: if the display of specified address
Screen is unable to playing network streaming, then reselects the display screen of other addresses, and the address UDP of converting network stream is matching, pushes away
Other display screens are sent to play out.
The vehicle-mounted real time playing method merges the ad data received with the video frame of real-time bit stream data,
New video frame is generated, and repacks slice and generates network flow, only needs simple network interface in this way, it can by cable
To transmit and play, the conversion for carrying out HDMI interface and SDI interface is not needed, cost, and advertisement number are thus greatly reduced
According to not having to need to be multiplexed into again inside code stream, convenient for the issuing of advertisement, iteration and update.
Meanwhile the present invention also provides a kind of vehicle-mounted real-time playing systems；As shown in Fig. 2, the system includes:
Data reception module 100, the real-time bit stream data and ad data that real-time reception front end issues.
Real-time bit stream data is DTMB or other real-time bit stream datas.
Data resolution module 200 parses the video frame, audio-video and synchronization frame of real-time bit stream data.
After receiving real-time bit stream data and ad data, to enable ad data and real-time bit stream data to merge,
Data resolution module 200 will parse the video frame, audio-video and synchronization frame of real-time bit stream data, subsequent and ad data first
It is merged.
Ad data is merged with the video frame of real-time bit stream data, generates new video by video fusion module 300
Frame.
The mode that ad data is merged with real-time bit stream data is by video fusion module 300: video fusion module 300 is logical
The framebuffer (frame buffering) for crossing ad data is merged with real-time bit stream data video frame, generates new video frame.
Audio-video, synchronization frame and new video frame are repackaged into TS file by network flow generation module 400
(Transport Stream, TS), and TS file is subjected to slice and becomes network flow.
After generating new video frame, network flow generation module 400 repacks audio-video, synchronization frame and new video frame
At TS file, realization ad data is merged with real-time bit stream data.For that can be transmitted to the TS file being fused into, by TS
File carries out slice and becomes network flow, and network flow only needs simple network interface, can transmit and play by cable, no
Need to carry out the conversion of interface.
Network flow playing module 500 plays out network flow by the display screen that udp protocol is pushed to specified address.
Network flow playing module 500 is that display screen distributes IP address, the IP address pair of distribution using DHCP Server function
The corresponding address UDP is answered, the network flow of the corresponding address UDP is played.Network flow is passed through udp protocol by network flow playing module 500
The display screen for being pushed to pre-assigned corresponding IP address plays out, to realize broadcasting for real-time bit stream data and ad data
It puts.
Further, network flow playing module 500 installs network streaming player on a display screen, passes through network streaming player
To play the network flow of push.There is no need to HDMI to turn SDI interface for display screen in this way, can greatly save cost.
After actuation, if playing out in preset time without network flow, network flow playing module 500 controls player
Player is restarted receives network flow again.
If being unable to playing network streaming due to display screen failure and other reasons, then the system: if the display screen of specified address cannot
Playing network streaming, network flow playing module 500 then reselect the display screen of other addresses, and the address UDP of converting network stream
It is matching, it is pushed to other display screens and plays out.
The vehicle-mounted real-time playing system merges the ad data received with the video frame of real-time bit stream data,
New video frame is generated, and repacks slice and generates network flow, only needs simple network interface in this way, it can by cable
To transmit and play, the conversion for carrying out HDMI interface and SDI interface is not needed, cost, and advertisement number are thus greatly reduced
According to not having to need to be multiplexed into again inside code stream, convenient for the issuing of advertisement, iteration and update.
The vehicle-mounted real time playing method of the present invention and system, to the video frame of the ad data and real-time bit stream data that receive
It is merged, generates new video frame, and repacked slice and generate network flow, only needed simple network interface in this way, lead to
Crossing cable can transmit and play, and do not need the conversion for carrying out HDMI interface and SDI interface, thus greatly reduce cost,
And ad data does not have to need to be multiplexed into again inside code stream, convenient for the issuing of advertisement, iteration and update.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of vehicle-mounted real time playing method, which comprises the steps of:
S10: the real-time bit stream data and ad data that real-time reception front end issues；
S20: the video frame, audio-video and synchronization frame of real-time bit stream data are parsed；
S30: ad data is merged with the video frame of real-time bit stream data, generates new video frame；
S40: audio-video, synchronization frame and new video frame are repackaged into TS file, and TS file is subjected to slice and becomes net
Network stream；
S50: network flow is played out by the display screen that udp protocol is pushed to specified address.
2. vehicle-mounted real time playing method according to claim 1, which is characterized in that the step S30 specifically: by wide
The framebuffer for accusing data is merged with real-time bit stream data video frame, generates new video frame.
3. vehicle-mounted real time playing method according to claim 1, which is characterized in that the step S50 specifically: utilize
DHCP Server function is that display screen distributes IP address, and the IP address of distribution corresponds to the corresponding address UDP, with playing corresponding UDP
The network flow of location.
4. vehicle-mounted real time playing method according to claim 3, which is characterized in that the step S50 further include: showing
Network streaming player is installed on screen, the network flow of push is played by network streaming player.
5. vehicle-mounted real time playing method according to claim 4, which is characterized in that the step S50 further include: if specified
The display screen of address is unable to playing network streaming, then reselects the display screen of other addresses, and the address UDP of converting network stream with
Matching, be pushed to other display screens and play out.
6. a kind of vehicle-mounted real-time playing system characterized by comprising
Data reception module, the real-time bit stream data and ad data that real-time reception front end issues；
Data resolution module parses the video frame, audio-video and synchronization frame of real-time bit stream data；
Ad data is merged with the video frame of real-time bit stream data, generates new video frame by video fusion module；
Audio-video, synchronization frame and new video frame are repackaged into TS file, and TS file are carried out by network flow generation module
Slice becomes network flow；
Network flow playing module plays out network flow by the display screen that udp protocol is pushed to specified address.
7. vehicle-mounted real-time playing system according to claim 6, which is characterized in that the video fusion module passes through advertisement
The framebuffer of data is merged with real-time bit stream data video frame, generates new video frame.
8. vehicle-mounted real-time playing system according to claim 6, which is characterized in that the network flow playing module utilizes
DHCP Server function is that display screen distributes IP address, and the IP address of distribution corresponds to the corresponding address UDP, with playing corresponding UDP
The network flow of location.
9. vehicle-mounted real-time playing system according to claim 8, which is characterized in that the network flow playing module is being shown
Network streaming player is installed on screen, the network flow of push is played by network streaming player.
10. vehicle-mounted real-time playing system according to claim 9, which is characterized in that if the display screen of specified address cannot
Playing network streaming, the network flow playing module then reselect the display screen of other addresses, and the address UDP of converting network stream
It is matching, it is pushed to other display screens and plays out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630483.8A CN109660843A (en) | 2018-12-29 | 2018-12-29 | Vehicle-mounted real time playing method and system |
| PCT/CN2019/107517 WO2020134232A1 (en) | 2018-12-29 | 2019-09-24 | On-board real-time playback method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630483.8A CN109660843A (en) | 2018-12-29 | 2018-12-29 | Vehicle-mounted real time playing method and system |
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| Publication Number | Publication Date |
|---|---|
| CN109660843A true CN109660843A (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811630483.8A Pending CN109660843A (en) | 2018-12-29 | 2018-12-29 | Vehicle-mounted real time playing method and system |
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| Country | Link |
|---|---|
| CN (1) | CN109660843A (en) |
| WO (1) | WO2020134232A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020134232A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳市九洲电器有限公司 | On-board real-time playback method and system |
| CN113891132A (en) * | 2021-10-25 | 2022-01-04 | 北京字节跳动网络技术有限公司 | Audio and video synchronization monitoring method and device, electronic equipment and storage medium |
| CN114079706A (en) * | 2020-08-18 | 2022-02-22 | 京东方科技集团股份有限公司 | Signal processing device, audio and video display device and processing method |
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| CN107277577A (en) * | 2017-07-14 | 2017-10-20 | 深圳创维－Rgb电子有限公司 | Method for pushing, device and the computer-readable recording medium of advertisement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134232A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳市九洲电器有限公司 | On-board real-time playback method and system |
| CN114079706A (en) * | 2020-08-18 | 2022-02-22 | 京东方科技集团股份有限公司 | Signal processing device, audio and video display device and processing method |
| CN113891132A (en) * | 2021-10-25 | 2022-01-04 | 北京字节跳动网络技术有限公司 | Audio and video synchronization monitoring method and device, electronic equipment and storage medium |
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Application publication date: 20190419 |