WO2017096825A1 - 导播台的多路视频显示方法及装置 - Google Patents

导播台的多路视频显示方法及装置 Download PDF

Info

Publication number
WO2017096825A1
WO2017096825A1 PCT/CN2016/088717 CN2016088717W WO2017096825A1 WO 2017096825 A1 WO2017096825 A1 WO 2017096825A1 CN 2016088717 W CN2016088717 W CN 2016088717W WO 2017096825 A1 WO2017096825 A1 WO 2017096825A1
Authority
WO
WIPO (PCT)
Prior art keywords
video signal
video
display
signal
video signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/088717
Other languages
English (en)
French (fr)
Inventor
李兴玉
白茂生
魏伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Le Holdings Beijing Co Ltd
LeCloud Computing Co Ltd
Original Assignee
Le Holdings Beijing Co Ltd
LeCloud Computing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Le Holdings Beijing Co Ltd, LeCloud Computing Co Ltd filed Critical Le Holdings Beijing Co Ltd
Priority to US15/246,216 priority Critical patent/US20170163906A1/en
Publication of WO2017096825A1 publication Critical patent/WO2017096825A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching

Definitions

  • the present application relates to the field of network video, and in particular, to a multi-channel video display method and apparatus for a guide station.
  • the video platform of the video industry refers to the platform technology in the field of television program production, which is mainly used to switch different video sources to achieve the perfect effect of television programs.
  • cameras with different orientations will simultaneously transmit video signals of different orientations to the guide switching station, and the guide will select one signal as the output according to the effect of the program.
  • multiple display devices are often required, and if multiple signals are simultaneously played on one display device, it is equivalent to a preview mode in which multiple players are turned on one display device to simultaneously play multiple signals.
  • the computing resources of the device will be seriously consumed, so that the display device is overloaded and cannot be played normally.
  • the purpose of the present application is to provide a multi-channel video display method and apparatus for a guide station, which solves the technical problem that the device load is too high when the display device of the guide station displays multiple video signals in the prior art.
  • the present application discloses a multi-channel video display method for a guide station, including:
  • a multi-channel video display device for a guide station including:
  • a signal acquisition module configured to acquire a plurality of first video signals
  • a parameter determining module configured to determine a size and a display position of each of the first video signals according to a number of paths of the plurality of first video signals and a preset resolution of the second video signal
  • a signal combining module configured to convert each of the first video signals into corresponding sizes, and merge them into one second video signal according to the display position
  • a first signal output module configured to output the second video signal to a display device of the guide station for display.
  • the present application also discloses a multi-channel video display device of a guide station, comprising: a memory, a processor, wherein
  • the memory is configured to store one or more instructions, wherein the one or more instructions are for execution by the processor;
  • the processor is configured to acquire a plurality of first video signals
  • the application combines the multiple first video signals used by the guide station into one second video signal, so that the display device of the guide station only needs to play one second video signal to simultaneously monitor multiple video images, thereby effectively reducing the guide station. Display the load of the device to prevent the display device from being overloaded and the guide station not working properly.
  • FIG. 1 is a flowchart of a multi-channel video display method of a guide station according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a multi-channel video display method of a guide station according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a multi-channel video display method of a guide station according to an embodiment of the present invention
  • FIG. 4 is a block diagram of a multi-channel video display device of a guide station according to an embodiment of the present invention.
  • the server may be a server device for providing a multi-channel video screen for a guide station, and the following steps S101-S104 are included.
  • step S101 a plurality of first video signals for the guide station are acquired.
  • the first video signal may be a live video signal from a live program or a recorded video signal.
  • the multi-channel video is transmitted back to the guide station as an input signal, and the guide broadcasts the live broadcast of the broadcast screen when the program is broadcasted. For example, a video image of multiple angles transmitted from multiple camera positions at the same time in a live program, or a video picture recorded by different cameras from different angles in other programs.
  • the URL address of each first video signal may be preset in the server, and the server presets a socket interface for the guide station service program, and transmits a Transmission Control Protocol (TCP) or a User Datagram Protocol (User).
  • TCP Transmission Control Protocol
  • User User Datagram Protocol
  • the Datagram Protocol (UDP) obtains the first video signal corresponding to each URL address.
  • step S102 the size and display position of each of the first video signals are determined according to the number of paths of the plurality of first video signals and the preset resolution of the second video signal.
  • the server after receiving the multiple first video signals, merges into one second video signal and outputs the same to the guide station. Therefore, it is necessary to preset the resolution, video format and code rate of the second video signal on the server.
  • the size and display position of each of the first video signals needs to be determined.
  • the size is the size of the picture of the first video signal in the picture of the second video signal
  • the display position refers to the relative position of the picture of the first video signal in the picture of the second video signal.
  • each second video signal is determined according to the number of paths of the plurality of first video signals and the preset resolution of the second video signal.
  • the second video signal picture may be equally divided according to the preset resolution and the number of channels, and equally distributed to each of the first video signals; or the display time may be longer according to the time or importance of the first video signal of each channel. Or a more important picture is allocated a larger size to facilitate the observation of whether the picture is normal.
  • the first video signal of the picture taken at the camera position facing the center of the venue, the square or the stadium may be set larger. The size is convenient for monitoring to monitor whether the first video signal is normal.
  • the preset resolution of the second video signal is 1080 ⁇ 720, and there are four first video signals
  • the preset resolution can be equally distributed to the four first video signals, and the size of each channel input signal.
  • the size of the relatively important first video signal can also be set to 1080 ⁇ 360, and the other three first video signals are 360 ⁇ 360.
  • the size division of the first video signals of the above-mentioned respective channels is for illustrative purposes only and does not constitute a limitation on the scope of protection of the present invention.
  • the screen of each channel of the first video signal may be tiled in the screen of the second video signal, and The coordinates of the upper left corner of the first video signal picture indicate the display position of the first video signal of the path.
  • the upper left corner of the picture of the second video signal is the origin
  • the origin coordinate is (0, 0)
  • the second video signal has a preset resolution of 1080 ⁇ 720
  • the size of the four first video signals is 540 ⁇ 360. , dividing the picture of the second video signal into four upper left, upper right, lower left, and lower right Show area.
  • the first video signal of the first channel is displayed in the upper left display area, and the coordinates of the upper left corner of the picture are (0, 0); the second video signal of the second channel is displayed in the upper right display area, and the coordinates of the upper left corner of the picture are (0) , 540); the third channel first video signal is displayed in the lower left display area, the coordinates of the upper left corner of the picture is (0, 360); the fourth channel first video signal is displayed in the lower right display area, the upper left corner of the picture The coordinates are (540, 360).
  • each of the first video signals is converted into a corresponding size, and combined into a second video signal according to the display position.
  • Converting each of the first video signals from the original size to the size determined in step S102 can be achieved in the following manner.
  • YUV is a color coding method adopted by European television systems. It is a phase-inversion (PAL) system and sequential color and storage (Sequentiel Couleur A Memoire, SECAM) and other analog color TV systems. Color space.
  • PAL phase-inversion
  • SECAM sequential color and storage
  • the luminance signal is Y
  • the two color difference signals are B-Y (ie, U) and R-Y (ie, V), respectively.
  • Adjusting the resolution of the first video signal by using a FTMPEG (Fast Forward Mpeg) size filter for example, the original resolution of the first video signal is 1080 ⁇ 720, and needs to be converted into the size 540 ⁇ 360 determined in step S102. , then, use the size filter to adjust it:
  • FTMPEG Fast Forward Mpeg
  • Ffmpeg-i input.yuv-vf scale 540:360output1.yuv; where 540:360 represents the adjusted size, output1 represents the output of the first video signal of the first way, and “.yuv” represents the first video signal for conversion.
  • the output corresponding to the first video signal of the first channel is also in the YUV color space, and the adjusted size is smaller than the original resolution of the first video signal, which is equivalent to the YUV data of each row of pixels. Compression processing.
  • the first video signals of the respective channels are combined into one second video signal according to the display position determined in step S102 (such as the coordinate value of the upper left corner of the screen).
  • the size-adjusted first video signals can be combined by using an overlay filter, for example:
  • the size-adjusted four-way first video signals output1 to output4 are respectively combined into one second video signal output.yuv according to respective display positions.
  • the output signal belonging to the YUV color space is then transcoded into a required video format according to business requirements, for example, mp4, mkv, and the like.
  • the converted sampling format may be inconsistent.
  • the YUV sampling format of the second video signal may also be preset, for example, 4:4:4, 4:2:1. 4:2:0, etc., before combining the first video signals of each channel, first converting each video signal into a preset YUV sampling format to ensure normal display of the second video signal.
  • step S104 the second video signal is output to the display device of the guide station for display.
  • the picture of the plurality of first video signals is combined in the second video signal, so that the display device of the guide station can simultaneously view the multi-channel picture while playing the second video signal.
  • the multiple first video signals used for the guide station are combined into one second video signal, so that the display device of the guide station only needs to play one second video signal to simultaneously monitor multiple video images, thereby effectively reducing
  • the guide station displays the load of the device to prevent the display device from being overloaded and the guide station not working properly.
  • the multi-channel video display method of the guide station further includes the following steps S105-S106.
  • step S105 when one of the first video signals is interrupted, the spare first video signal is acquired.
  • the spare first video signal may be a video signal taken by other camera bits in the live program, or a video signal recorded by other camera bits in other programs, or may be a video signal pre-stored on the server.
  • the URL address corresponding to the spare first video signal is preset, and when it is determined that the first video signal is currently interrupted, the standby first video signal is requested.
  • step S106 the spare first video signal is converted into a size corresponding to the interrupted first video signal, and the interrupted first video signal is replaced at the corresponding display position.
  • the spare first video signal is converted into the size corresponding to the interrupted first video signal, and then merged into the second video signal.
  • the synchronization of the video content can be determined by the time stamp of each of the first video signals, thereby replacing the interrupted video first video signal with the spare first video signal.
  • the alternate first video signal when the first video signal is interrupted, the alternate first video signal is used for automatic replacement, especially when the first video signal of the main picture broadcasted by the program is interrupted, for example, is set to face the venue.
  • the first video signal of the picture taken by the camera position in the center of the square or the stadium when interrupted, it automatically switches to the alternate first video signal to prevent the guide from immediately switching the picture, causing the program picture to be unclear and black.
  • the situation that affects the user's viewing experience occurs, so that the program broadcast screen does not interrupt, and when the first video signal of the main screen is restored, the spare first video signal is cut off, and then the first screen of the main screen is in the same manner.
  • the video signal replaces the alternate video signal to restore the broadcast of the main picture.
  • the multi-channel video display method of the guide station further includes the following steps S107-S112.
  • step S107 it is determined whether the number of ways of the first video signal is increasing or decreasing. When the number of paths of the first video signal increases, step S108 is performed; when the number of paths of the first video signal decreases, step S110 is performed.
  • step S108 the added first video signal is acquired.
  • step S109 the size and display position of each of the first video signals are adjusted according to the increased number of ways and the preset resolution of the second video signal.
  • step S110 adjusting the size and display position of each of the first video signals according to the reduced number of paths and the preset resolution of the second video signal;
  • step S111 the second video signal is adjusted according to the adjusted size and the display position
  • step S112 the adjusted second video signal is output to the display device of the guide station for display.
  • the increase or decrease of the first video signal can be controlled by the broadcast station, and the broadcaster decides the increase and decrease of the number of simultaneously monitored pictures and decides which way to add the first video signal or which way to reduce the first video signal.
  • the server After receiving the instruction to increase or decrease the first video signal, the server increases or decreases the address URL of the requested first video signal. It is determined whether the number of ways of the first video signal is increased or decreased according to the change in the number of URL addresses.
  • the size and display position of each of the first video signals are re-determined according to the number of added channels. For example, after the number of paths of the first video signal is increased from four to five, the preset resolution 1080 ⁇ 720 of the second video signal is allocated to five first video signals, wherein the size of the three first video signals is 360 ⁇ 360, the display positions are (0, 0), (360, 0) and (720, 0) respectively; the size of the other two channels of the first video signal is 540 ⁇ 360. The display positions are (0, 360) and (540, 360), respectively.
  • the size and display position of each of the first video signals are re-determined according to the number of reduced channels. For example, after the number of paths of the first video signal is reduced from four to three, the preset resolution of the second video signal, 1080 ⁇ 720, is allocated to the three first video signals, and the size of the two first video signals. For 540 ⁇ 360, the display positions are (0,0) and (540,0) respectively; the other video signal has a size of 1080 ⁇ 360 and the display position is (0,360).
  • the second video signal is recombined according to the adjusted size and the display position, and the recombined second video signal is output to the display device of the guide station for playing.
  • the size and display position of the first video signal of each channel also change, and the multi-channel picture displayed by the guide station is adjusted accordingly, and the first video is increased or decreased.
  • the number of signals it is not necessary to restart the navigation service program, and the multi-channel display displayed by the guide station can be freely adjusted, thereby improving the convenience of the navigation work.
  • FIG. 4 is a multi-channel video display device of a guide station according to an embodiment of the present invention, which is located on the server side, and includes:
  • the signal acquisition module 20 is configured to acquire a plurality of first video signals
  • the parameter determining module 21 is configured to determine a size and a display position of each of the first video signals according to the number of paths of the multiple first video signals and the preset resolution of the second video signal;
  • the signal combining module 22 is configured to convert each of the first video signals into corresponding sizes, and combine them into one second video signal according to the display position;
  • the first signal output module 23 is configured to output the second video signal to the display device of the guide station for display.
  • the apparatus further comprises:
  • An alternate signal acquisition module configured to acquire an alternate first video signal when one of the first video signals is interrupted
  • a signal replacement module configured to convert the spare first video signal into a size corresponding to the interrupted first video signal, and replace the interrupted first video signal at the corresponding display position.
  • the apparatus further comprises:
  • a signal adding module configured to acquire an increased first video signal when the number of paths of the plurality of first video signals increases
  • a first parameter adjustment module configured to adjust a size and a display position of each of the first video signals according to the increased number of paths and a preset resolution of the second video signal
  • the first signal adjustment module adjusts the second video signal according to the adjusted size and the display position
  • the second signal output module is configured to output the adjusted second video signal to the display device of the guide station for display.
  • the apparatus further comprises:
  • a second parameter adjustment module configured to adjust a size and a display position of each of the first video signals according to the reduced number of channels and the preset resolution of the second video signal when the number of channels of the plurality of first video signals is reduced ;
  • a second signal adjustment module configured to adjust the second video signal according to the adjusted size and the display position
  • a third signal output module configured to output the adjusted second video signal to a display device of the guide station for display.
  • each of the foregoing functional modules may be implemented by a hardware processor.
  • the embodiment of the invention provides a multi-channel video display device of the guide station, which is located on the server side, and the device includes:
  • the memory is configured to store one or more instructions, wherein the one or more instructions are for execution by the processor;
  • the processor is configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • the memory may include non-persistent memory, random access memory (RAM), and/or non-volatile memory in a computer readable medium, such as read only memory (ROM) or flash memory.
  • RAM random access memory
  • ROM read only memory
  • Memory is an example of a computer readable medium.
  • Computer readable media includes both permanent and non-persistent, removable and non-removable media.
  • Information storage can be implemented by any method or technology.
  • the information can be computer readable instructions, data structures, modules of programs, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory. (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk read only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape storage or other magnetic storage devices or any other non-transportable media can be used to store information that can be accessed by a computing device.
  • computer readable media does not include non-transitory computer readable media, such as modulated data signals and carrier waves.
  • first device if a first device is coupled to a second device, the first device can be directly electrically coupled to the second device, or electrically coupled indirectly through other devices or coupling means. Connected to the second device.
  • the description of the specification is intended to be illustrative of the preferred embodiments of the invention. The scope of protection of the application is subject to the definition of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

公开了导播台的多路视频显示方法和装置，包括：获取多路第一视频信号，根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置，将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号，输出所述第二视频信号至所述导播台的显示设备进行显示。有效降低了导播台显示设备的负载，防止显示设备负载过高而使导播台无法正常工作的情况出现。

Description

导播台的多路视频显示方法及装置
交叉引用
本申请引用于2015年12月07日递交的名称为“导播台的多路视频显示方法和装置”的第201510888429.3号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及网络视频领域，特别涉及一种导播台的多路视频显示方法及装置。
背景技术
目前视频行业的导播台多指电视节目制作领域的导播台技术，主要用于切换不同的视频源来达到电视节目的完美效果。例如，一场现场直播，会有不同方位的摄像机给导播切换台同时传送不同方位的影像信号，而导播人员会根据节目需要的效果，选择一路信号作为输出。
对于多路信号的显示，往往需要多台显示设备，而如果在一台显示设备上同时播放多路信号，相当于在一台显示设备上打开多个播放器同时播放多路信号的预览方式，会严重耗费设备的计算资源，使显示设备负载过高，导致无法正常播放。
发明内容
本申请的目的在于提供一种导播台的多路视频显示方法和装置，用以解决现有技术中导播台显示设备显示多路视频信号时设备负载过高的技术问题。
为了解决上述技术问题，本申请揭示了一种导播台的多路视频显示方法，包括：
获取多路第一视频信号；
根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
输出所述第二视频信号至所述导播台的显示设备进行显示。
为了解决上述技术问题，本申请还揭示了一种导播台的多路视频显示装置，包括：
信号获取模块，用于获取多路第一视频信号；
参数确定模块，用于根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
信号合并模块，用于将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
第一信号输出模块，用于输出所述第二视频信号至所述导播台的显示设备进行显示。
本申请还揭示了一种导播台的多路视频显示装置，包括：存储器、处理器，其中，
所述存储器，用于存储一条或多条指令，其中，所述一条或多条指令以供所述处理器调用执行；
所述处理器，用于获取多路第一视频信号；
用于根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
用于将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
用于输出所述第二视频信号至所述导播台的显示设备进行显示。
与现有技术相比，本申请可以获得包括以下技术效果：
本申请将用于导播台的多路第一视频信号合并为一路第二视频信号，使导播台的显示设备只需要播放一路第二视频信号即可同时监控多路视频画面，有效降低了导播台显示设备的负载，防止显示设备负载过高而使导播台无法正常工作的情况出现。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是本发明实施例提供的一种导播台的多路视频显示方法的流程图；
图2是本发明实施例提供的一种导播台的多路视频显示方法的流程图；
图3是本发明实施例提供的一种导播台的多路视频显示方法的流程图；
图4是本发明实施例提供的一种导播台的多路视频显示装置的框图。
具体实施方式
图1是本发明实施例提供的一种导播台的多路视频显示方法，适用于服务器，服务器可以是用于为导播台提供多路视频画面的服务器设备，该包括以下步骤S101-S104。
在步骤S101中，获取用于导播台的多路第一视频信号。
第一视频信号可以是来自于直播节目的直播视频信号，或者是录播视频信号。将多路视频作为输入信号传回导播台，供导播在节目播出时对播出画面进行实时切换。例如，直播节目中同时从多个摄像机位传回的多个角度的视频画面，或者是其他节目中多个摄像机从不同角度录制的视频画面。
可以在服务器中预设每一路第一视频信号的URL地址，服务器为导播台服务程序预设套接字(socket)接口，通过传输控制协议(Transmission Control Protocol，TCP)或者用户数据报协议(User Datagram Protocol，UDP)获取到每个URL地址所对应的第一视频信号。
在步骤S102中，根据多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路第一视频信号的尺寸和显示位置。
本发明实施例中，服务器接收到多路第一视频信号后，合并为一路第二视频信号并输出至导播台。因此需要在服务器预设第二视频信号的分辨率、视频格式及码率。
为了在一路第二视频信号中显示出多路第一视频信号的画面，需确定每一路第一视频信号的尺寸和显示位置。尺寸是第一视频信号的画面在第二视频信号的画面中的大小，显示位置是指第一视频信号的画面在第二视频信号的画面中的相对位置。
根据多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路第二视频信号的尺寸。可以根据预设分辨率和路数将第二视频信号画面进行平分，平均分配给每一路第一视频信号；也可以根据各路第一视频信号的画面显示时间或者重要程度，给显示时间更长或者更重要的画面分配更大的尺寸，以利于导播观察该画面是否正常，例如针对被设置在面向会场、广场或者体育场馆中央的摄像机位所拍摄的画面的第一视频信号，可以设置较大尺寸以利于导播监控这一路第一视频信号是否正常。
例如，第二视频信号的预设分辨率为1080×720，共有四路第一视频信号，那么，可以对将预设分辨率平均分配给四路第一视频信号，每一路视输入信号的尺寸为540×360，也可以将相对重要的一路第一视频信号的尺寸设置为1080×360，其他三路第一视频信号为360×360。上述各路第一视频信号的尺寸划分方式仅用于示例性说明，不构成对本发明保护范围的限制。
确定各路第一视频信号的尺寸后，再进一步确定各路第一视频信号的画面的显示位置，可以将各路第一视频信号的画面全部平铺在第二视频信号的画面中，并以第一视频信号画面的左上角的坐标来表示该路第一视频信号的显示位置。
例如，以第二视频信号的画面的左上角为原点，原点坐标为(0，0)，第二视频信号预设分辨率为1080×720，四路第一视频信号的尺寸都是540×360，将第二视频信号的画面平均划分为左上、右上、左下和右下四个显 示区域。第一路第一视频信号显示在左上显示区域，其画面的左上角的坐标为(0，0)；第二路第一视频信号显示在右上显示区域，其画面的左上角的坐标为(0，540)；第三路第一视频信号显示在左下显示区域，其画面的左上角的坐标为(0，360)；第四路第一视频信号显示在右下显示区域，其画面的左上角的坐标为(540，360)。
在步骤S103中，将每路第一视频信号转化为相应的尺寸，并按照显示位置合并为一路第二视频信号。
将每一路第一视频信号从原始尺寸转化为步骤S102中确定的尺寸，可以通过以下方式实现。
首先，对第一视频信号进行解码操作，获得第一视频信号的YUV数据。YUV是被欧洲电视系统所采用的一种颜色编码方法，是逐行倒相(Phase Alteration Line，PAL)制和按顺序传送彩色与存储(Sequentiel Couleur A Memoire，SECAM)制等模拟彩色电视制式采用的色彩空间。其中，亮度信号是Y，两个色差信号分别是B－Y(即U)和R－Y(即V)。
利用FFMPEG(Fast Forward Mpeg)的尺寸过滤器(scale filter)调整第一视频信号的分辨率，例如第一视频信号的原始分辨率为1080×720，需要转换为步骤S102中确定的尺寸540×360，那么，利用尺寸过滤器对其进行调整：
ffmpeg-i input.yuv-vf scale＝540:360output1.yuv；其中540:360代表调整后的尺寸，output1代表第一路第一视频信号对应的输出，“.yuv”代表第一视频信号以转换至YUV色彩空间，尺寸调整后的第一路第一视频信号对应的输出也属于YUV色彩空间，调整后的尺寸小于第一视频信号的原始分辨率时，相当于对各行像素的YUV数据进行了压缩处理。
在各路第一视频信号的尺寸调整完毕之后，根据步骤S102中确定的显示位置(如画面左上角的坐标值)将各路第一视频信号合并为一路第二视频信号。可以利用覆盖过滤器(overlay filter)对尺寸调整后的各路第一视频信号进行合并，例如：
Figure PCTCN2016088717-appb-000001
Figure PCTCN2016088717-appb-000002
将尺寸调整后的四路第一视频信号output1至output4分别根据各自的显示位置合并到一路第二视频信号output.yuv中。再根据业务需求将属于YUV色彩空间的输出信号转码为需要视频格式，例如，mp4、mkv等格式。
各路第一视频信号转换成YUV色彩空间时，转换后的采样格式有可能不一致，此时还可以预设第二视频信号的YUV采样格式，例如，4:4:4、4:2:1、4:2:0等，在对各路第一视频信号进行合并之前，先将各路视频信号转换为预设的YUV采样格式，以保证第二视频信号的正常显示。
在步骤S104中，输出第二视频信号至导播台的显示设备进行显示。
在第二视频信号中已合并了多路第一视频信号的画面，使导播台的显示设备在播放一路第二视频信号时就可以同时看到多路画面。
本实施例中，将用于导播台的多路第一视频信号合并为一路第二视频信号，使导播台的显示设备只需要播放一路第二视频信号即可同时监控多路视频画面，有效降低了导播台显示设备的负载，防止显示设备负载过高而使导播台无法正常工作的情况出现。
在一个实施例中，如图2所示，该导播台的多路视频显示方法进一步包括以下步骤S105-S106。
在步骤S105中，当其中一路第一视频信号中断时，获取备用的第一视频信号。
备用的第一视频信号可以是直播节目中其他摄像机位拍摄的视频信号，或者，是其他节目中其他摄像机位所录制的视频信号，也可以是预先存储在服务器的视频信号。
预先设置备用的第一视频信号对应的URL地址，当判断出当前是第一视频信号出现断流时，请求备用的第一视频信号。
在步骤S106中，将备用的第一视频信号转化为中断的第一视频信号对应的尺寸，并在相应的显示位置替换中断的第一视频信号。
通过与步骤S103中相同的方式，备用的第一视频信号转化为中断的第一视频信号对应的尺寸，再合并到第二视频信号中。而对于视频内容的同步可通过各路第一视频信号的时间戳来确定，从而将出现中断的视频第一视频信号替换为备用的第一视频信号。
本实施例中，一路第一视频信号出现中断时，利用备用的第一视频信号进行自动替换，特别是当节目播出的主要画面的第一视频信号出现中断时，例如，被设置在面向会场、广场或者体育场馆中央的摄像机位所拍摄的画面的第一视频信号出现中断时，自动切换为备用的第一视频信号，以防止导播没有即时切换画面，使节目画面出现不清晰、黑屏等现象而影响到用户的观看体验的情况出现，使节目播出画面不会出现中断，主要画面的第一视频信号恢复时，切断备用的第一视频信号，再以相同的方式由主要画面的第一视频信号替换掉备用视频信号，从而恢复主要画面的播出。
在一个实施例中，如图3所示，该导播台的多路视频显示方法进一步包括以下步骤S107-S112。
在步骤S107中，判断第一视频信号的路数是增加还是减少。当第一视频信号的路数增加，执行步骤S108；当第一视频信号的路数减少时，执行步骤S110。
在步骤S108中，获取增加的第一视频信号。
在步骤S109中，根据增加后的路数和第二视频信号的预设分辨率，调整每路第一视频信号的尺寸和显示位置。
在步骤S110中，根据减少后的路数和第二视频信号的预设分辨率，调整每路第一视频信号的尺寸和显示位置；
在步骤S111中，按照调整后的尺寸和显示位置调整第二视频信号；
在步骤S112中，输出调整后的第二视频信号至导播台的显示设备进行显示。
第一视频信号的增加或减少可以由导播台来控制，导播人员来决定同时被监控的画面数量的增加和减少并决定增加哪一路第一视频信号或者减少哪一路第一视频信号。服务器接收到增加或减少第一视频信号的指令后，增加或减少请求的第一视频信号的地址URL。根据URL地址数量的变化，判断出第一视频信号的路数是增加还是减少。
如果第一视频信号的路数增加，根据增加后的路数，重新确定每路第一视频信号的尺寸和显示位置。例如，第一视频信号的路数由四路增加到五路之后，将第二视频信号的预设分辨率1080×720分配给五路第一视频信号，其中三路第一视频信号的尺寸为360×360，显示位置分别为(0，0)、(360，0)和(720，0)；另外两路的第一视频信号的尺寸为540×360。显示位置分别为(0，360)和(540，360)。
如果第一视频信号的路数减少，根据减少后的路数，重新确定每路第一视频信号的尺寸和显示位置。例如，第一视频信号的路数由四路减少到三路之后，将第二视频信号的预设分辨率1080×720分配给三路第一视频信号，其中两路的第一视频信号的尺寸为540×360，显示位置分别为(0，0)和(540，0)；另外一路第一视频信号的尺寸为1080×360，显示位置为(0，360)。
上述在第一视频信号的路数增加或者减少时对尺寸和显示位置的调整方式仅用于示例性说明，不构成对本发明保护范围的限制。
按照调整后的尺寸和显示位置重新合并出第二视频信号，并将重新合并的第二视频信号输出至导播台的显示设备进行播放。
本实施例中，随着第一视频信号的路数的变化，各路第一视频信号的尺寸和显示位置也随之变化，导播台显示的多路画面随之调整，在增减第一视频信号的路数时，无需重新启动导播服务程序，实现了导播台所显示的多路画面的自由调整，提升了导播工作的便利性。
以下为本发明的装置实施例，用以执行本发明的上述实施例。
图4是本发明实施例提供的一种导播台的多路视频显示装置，位于服务器侧，该装置包括：
信号获取模块20，用于获取多路第一视频信号；
参数确定模块21，用于根据多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路第一视频信号的尺寸和显示位置；
信号合并模块22，用于将每路第一视频信号转化为相应的尺寸，并按照显示位置合并为一路第二视频信号；
第一信号输出模块23，用于输出第二视频信号至导播台的显示设备进行显示。
在一个实施例中，该装置进一步包括：
备用信号获取模块，用于当其中一路第一视频信号中断时，获取备用的第一视频信号；
信号替换模块，用于将备用的第一视频信号转化为中断的第一视频信号对应的尺寸，并在相应的显示位置替换中断的第一视频信号。
在一个实施例中，该装置进一步包括：
信号增加模块，用于当多路第一视频信号的路数增加时，获取增加的第一视频信号；
第一参数调整模块，用于根据增加后的路数和第二视频信号的预设分辨率，调整每路第一视频信号的尺寸和显示位置；
第一信号调整模块，按照调整后的尺寸和显示位置调整第二视频信号；
第二信号输出模块，用于输出调整后的第二视频信号至所述导播台的显示设备进行显示。
在一个实施例中，该装置进一步包括：
第二参数调整模块，用于当多路第一视频信号的路数减少时，根据减少后的路数和第二视频信号的预设分辨率，调整每路第一视频信号的尺寸和显示位置；
第二信号调整模块，用于按照调整后的尺寸和显示位置调整第二视频信号；
第三信号输出模块，用于输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
此外，本发明实施例中可以通过硬件处理器(hardware processor)来实现上述各个功能模块。
本发明实施例提供了一种导播台的多路视频显示装置，位于服务器侧，该装置包括：
处理器，存储器；
其中，所述存储器，用于存储一条或多条指令，其中，所述一条或多条指令以供所述处理器调用执行；
所述处理器被配置为：
获取多路第一视频信号；
根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
输出所述第二视频信号至所述导播台的显示设备进行显示。
在一个实施例中，所述处理器进一步被配置为：
当其中一路第一视频信号中断时，获取备用的第一视频信号；
将所述备用的第一视频信号转化为所述中断的第一视频信号对应的尺寸，并在相应的显示位置替换所述中断的第一视频信号。
在一个实施例中，所述处理器进一步被配置为：
当所述多路第一视频信号的路数增加时，获取增加的第一视频信号；
根据增加后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
按照调整后的尺寸和显示位置调整所述第二视频信号；
输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
在一个实施例中，所述处理器进一步被配置为：
当所述多路第一视频信号的路数减少时，根据减少后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
按照调整后的尺寸和显示位置调整所述第二视频信号；
输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
在一个典型的配置中，计算设备包括一个或多个处理器(CPU)、输入/输出接口、网络接口和内存。
内存可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。内存是计算机可读介质的示例。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括非暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
如在说明书及权利要求当中使用了某些词汇来指称特定组件。本领域技术人员应可理解，硬件制造商可能会用不同名词来称呼同一个组件。本说明书及权利要求并不以名称的差异来作为区分组件的方式，而是以组件在功能上的差异来作为区分的准则。如在通篇说明书及权利要求当中所提及的“包含”为一开放式用语，故应解释成“包含但不限定于”。“大致”是指在可接收的 误差范围内，本领域技术人员能够在一定误差范围内解决所述技术问题，基本达到所述技术效果。此外，“耦接”一词在此包含任何直接及间接的电性耦接手段。因此，若文中描述一第一装置耦接于一第二装置，则代表所述第一装置可直接电性耦接于所述第二装置，或通过其他装置或耦接手段间接地电性耦接至所述第二装置。说明书后续描述为实施本申请的较佳实施方式，然所述描述乃以说明本申请的一般原则为目的，并非用以限定本申请的范围。本申请的保护范围当视所附权利要求所界定者为准。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的商品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种商品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的商品或者系统中还存在另外的相同要素。

Claims (9)

  1. 一种导播台的多路视频显示方法，其特征在于，包括：
    获取多路第一视频信号；
    根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
    将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
    输出所述第二视频信号至所述导播台的显示设备进行显示。
  2. 如权利要求1所述的导播台的多路视频显示方法，其特征在于，所述方法还包括：
    当其中一路第一视频信号中断时，获取备用的第一视频信号；
    将所述备用的第一视频信号转化为所述中断的第一视频信号对应的尺寸，并在相应的显示位置替换所述中断的第一视频信号。
  3. 如权利要求1所述的导播台的多路视频显示方法，其特征在于，所述方法还包括：
    当所述多路第一视频信号的路数增加时，获取增加的第一视频信号；
    根据增加后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
    按照调整后的尺寸和显示位置调整所述第二视频信号；
    输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
  4. 如权利要求1所述的导播台的多路视频显示方法，其特征在于，所述方法还包括：
    当所述多路第一视频信号的路数减少时，根据减少后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
    按照调整后的尺寸和显示位置调整所述第二视频信号；
    输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
  5. 一种导播台的多路视频显示装置，其特征在于，包括：
    信号获取模块，用于获取多路第一视频信号；
    参数确定模块，用于根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
    信号合并模块，用于将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
    第一信号输出模块，用于输出所述第二视频信号至所述导播台的显示设备进行显示。
  6. 如权利要求5所述的导播台的多路视频显示装置，其特征在于，所述装置还包括：
    备用信号获取模块，用于当其中一路第一视频信号中断时，获取备用的第一视频信号；
    信号替换模块，用于将所述备用的第一视频信号转化为所述中断的第一视频信号对应的尺寸，并在相应的显示位置替换所述中断的第一视频信号。
  7. 如权利要求5所述的导播台的多路视频显示方法，其特征在于，所述装置还包括：
    信号增加模块，用于当所述多路第一视频信号的路数增加时，获取增加的第一视频信号；
    第一参数调整模块，用于根据增加后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
    第一信号调整模块，按照调整后的尺寸和显示位置调整所述第二视频信号；
    第二信号输出模块，用于输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
  8. 如权利要求5所述的导播台的多路视频显示装置，其特征在于， 所述装置还包括：
    第二参数调整模块，用于当所述多路第一视频信号的路数减少时，根据减少后的路数和第二视频信号的预设分辨率，调整每路所述第一视频信号的尺寸和显示位置；
    第二信号调整模块，用于按照调整后的尺寸和显示位置调整所述第二视频信号；
    第三信号输出模块，用于输出所述调整后的第二视频信号至所述导播台的显示设备进行显示。
  9. 一种导播台的多路视频显示装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    获取多路第一视频信号；
    根据所述多路第一视频信号的路数和第二视频信号的预设分辨率，确定每路所述第一视频信号的尺寸和显示位置；
    将每路所述第一视频信号转化为相应的尺寸，并按照所述显示位置合并为一路第二视频信号；
    输出所述第二视频信号至所述导播台的显示设备进行显示。
PCT/CN2016/088717 2015-12-07 2016-07-05 导播台的多路视频显示方法及装置 Ceased WO2017096825A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/246,216 US20170163906A1 (en) 2015-12-07 2016-08-24 Method for displaying multi-path videos on broadcast console and electronic apparatus for the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510888429.3A CN105915839A (zh) 2015-12-07 2015-12-07 导播台的多路视频显示方法和装置
CN201510888429.3 2015-12-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/246,216 Continuation US20170163906A1 (en) 2015-12-07 2016-08-24 Method for displaying multi-path videos on broadcast console and electronic apparatus for the same

Publications (1)

Publication Number Publication Date
WO2017096825A1 true WO2017096825A1 (zh) 2017-06-15

Family

ID=56744184

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/088717 Ceased WO2017096825A1 (zh) 2015-12-07 2016-07-05 导播台的多路视频显示方法及装置

Country Status (2)

Country Link
CN (1) CN105915839A (zh)
WO (1) WO2017096825A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391822A (zh) * 2017-08-10 2019-02-26 徐文波 线上视频导播方法、装置及终端设备
CN112738612A (zh) * 2020-12-28 2021-04-30 浙江大华技术股份有限公司 一种视频处理方法及系统
CN113596348A (zh) * 2021-04-29 2021-11-02 青岛信芯微电子科技股份有限公司 图像处理方法及设备
CN116419029A (zh) * 2021-12-31 2023-07-11 北京字跳网络技术有限公司 一种视频合成方法及装置
CN117915025A (zh) * 2024-01-19 2024-04-19 福建一缕光智能设备有限公司 一种无线图传式多机位导播系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566522A (zh) * 2018-03-28 2018-09-21 中国船舶重工集团公司第七0九研究所 一种多路视频导播系统及方法
CN111314624B (zh) * 2018-12-11 2022-11-04 杭州海康威视数字技术股份有限公司 预览画面生成方法、装置、硬盘录像机及存储介质
CN110278476B (zh) * 2019-05-27 2022-03-18 深圳市拔超科技有限公司 一种在屏幕上进行多窗口布局的方法、装置及可读存储介质
CN111918096A (zh) * 2020-07-21 2020-11-10 上海网达软件股份有限公司 云导播快速切换输入源的方法、装置、设备及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103248941A (zh) * 2013-03-27 2013-08-14 青岛中星微电子有限公司 一种多通道视频源同步显示的方法及装置
US20140101227A1 (en) * 2012-10-09 2014-04-10 Christoph Bieselt Viewing angle switching for live broadcasts and on demand video playback
CN104602127A (zh) * 2014-09-01 2015-05-06 腾讯科技（北京）有限公司 导播视频同步播放方法和系统以及视频导播设备
CN104822070A (zh) * 2015-04-13 2015-08-05 腾讯科技（北京）有限公司 多路视频流播放方法及装置
CN104853065A (zh) * 2015-05-29 2015-08-19 北京中庆现代技术有限公司 双导播界面控制平台

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040013957A (ko) * 2002-08-09 2004-02-14 엘지전자 주식회사 멀티비전 및 그 화면 구현 방법
WO2013142803A1 (en) * 2012-03-23 2013-09-26 On-Net Surveillance Systems, Inc. Method and system for receiving surveillance video from multiple cameras
CN103248950A (zh) * 2013-04-28 2013-08-14 天脉聚源(北京)传媒科技有限公司 一种视频帧率定制的系统及方法
WO2015159487A1 (ja) * 2014-04-14 2015-10-22 パナソニックＩｐマネジメント株式会社 映像配信方法、映像受信方法、サーバ、端末装置及び映像配信システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140101227A1 (en) * 2012-10-09 2014-04-10 Christoph Bieselt Viewing angle switching for live broadcasts and on demand video playback
CN103248941A (zh) * 2013-03-27 2013-08-14 青岛中星微电子有限公司 一种多通道视频源同步显示的方法及装置
CN104602127A (zh) * 2014-09-01 2015-05-06 腾讯科技（北京）有限公司 导播视频同步播放方法和系统以及视频导播设备
CN104822070A (zh) * 2015-04-13 2015-08-05 腾讯科技（北京）有限公司 多路视频流播放方法及装置
CN104853065A (zh) * 2015-05-29 2015-08-19 北京中庆现代技术有限公司 双导播界面控制平台

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391822A (zh) * 2017-08-10 2019-02-26 徐文波 线上视频导播方法、装置及终端设备
CN112738612A (zh) * 2020-12-28 2021-04-30 浙江大华技术股份有限公司 一种视频处理方法及系统
CN112738612B (zh) * 2020-12-28 2023-04-11 浙江大华技术股份有限公司 一种视频处理方法及系统
CN113596348A (zh) * 2021-04-29 2021-11-02 青岛信芯微电子科技股份有限公司 图像处理方法及设备
CN113596348B (zh) * 2021-04-29 2023-11-03 青岛信芯微电子科技股份有限公司 图像处理方法及设备
CN116419029A (zh) * 2021-12-31 2023-07-11 北京字跳网络技术有限公司 一种视频合成方法及装置
US12563155B2 (en) 2021-12-31 2026-02-24 Beijing Zitiao Network Technology Co., Ltd. Video synthesis method and apparatus
CN117915025A (zh) * 2024-01-19 2024-04-19 福建一缕光智能设备有限公司 一种无线图传式多机位导播系统

Also Published As

Publication number Publication date
CN105915839A (zh) 2016-08-31

Similar Documents

Publication Publication Date Title
WO2017096825A1 (zh) 导播台的多路视频显示方法及装置
US8587653B1 (en) Modifying the resolution of video before transferring to a display system
US9369678B2 (en) Video streaming method and system
US11694303B2 (en) Method and apparatus for providing 360 stitching workflow and parameter
US20140244858A1 (en) Communication system and relaying device
US20160277772A1 (en) Reduced bit rate immersive video
CN104284098B (zh) 视频数据的处理方法及系统
US10504263B2 (en) Adaptive high dynamic range (HDR) tone mapping with overlay indication
US20110229106A1 (en) System for playback of ultra high resolution video using multiple displays
WO2017211250A1 (zh) 图像的叠加显示方法和系统
CN110149542A (zh) 传输控制方法
US10129500B2 (en) Multi-display apparatus
CN111314624B (zh) 预览画面生成方法、装置、硬盘录像机及存储介质
US20050007453A1 (en) Method and system of simultaneously displaying multiple views for video surveillance
WO2021147702A1 (zh) 一种视频处理方法及其装置
CN113132653B (zh) 一种可分割为任意播放数量屏幕的自动分屏实现方法
US20150304526A1 (en) External video locking and synchronization device
CN105916036A (zh) 视频画面切换方法和装置
JP2018504794A (ja) 中継映像とライブ表示映像の分離方法及び装置
TW201946430A (zh) 影像訊號轉換裝置及方法
CN105262971A (zh) 一种鱼眼摄像机录像的回放方法及装置
CN112584189A (zh) 直播数据处理方法、装置、系统与计算机可读存储介质
US9445052B2 (en) Defining a layout for displaying images
US12328462B2 (en) Media session management
US20170118528A1 (en) System and method for adaptive video streaming

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16872028

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16872028

Country of ref document: EP

Kind code of ref document: A1