CN116668626B - Multipath video pre-monitoring method and system - Google Patents
Multipath video pre-monitoring method and system Download PDFInfo
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- CN116668626B CN116668626B CN202310960217.6A CN202310960217A CN116668626B CN 116668626 B CN116668626 B CN 116668626B CN 202310960217 A CN202310960217 A CN 202310960217A CN 116668626 B CN116668626 B CN 116668626B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
Abstract
The invention discloses a multi-path video pre-monitoring method and a system, comprising the following steps: acquiring image frame data and source identification information of a source video, and packaging the image frame data and the source identification information into an image frame data packet; scaling the image frame data packet according to a preset resolution to generate a processed video; overlapping the video after the multipath processing to generate a pre-monitoring picture, and outputting and displaying the pre-monitoring picture; and selecting one path of processed video from the pre-monitoring picture to become a main video, and sending the selected signal to a video source end corresponding to the source identification information according to the source identification information of the selected processed video. According to the invention, the video source terminal is subjected to signal prompt during the pre-monitoring frequency switching, so that the personnel at the video source terminal can confirm the selected state information in real time, the switching connection smoothness of the pre-monitoring picture is improved, and the condition of untimely disconnection of personnel reaction during the pre-monitoring picture switching is avoided.
Description
Technical Field
The invention relates to the technical field of video pre-monitoring, in particular to a multi-channel video pre-monitoring method and system.
Background
When a video conference with multiple conference sites needs to be switched, if each video signal source is only expressed in a text form, it is difficult to judge the content of the signal source in advance and in real time, and video information can be clarified only after the video conference is switched to a large screen display, if the switched video picture has errors or the display content is incorrect, the error information can be adversely affected after the error information is displayed on the large screen. Especially for meeting with strict requirements on meeting place picture time, such as various meeting with starting ceremony, important leadership, etc., picture switching is realized without delay, multiple meeting places are tightly connected, etc. Therefore, the video provided by each conference place needs to be pre-monitored to facilitate the switching of the broadcasting guide table, so as to avoid the push of improper video pictures.
However, the existing video pre-monitoring function is only convenient for the broadcasting guiding platform to switch and use multiple paths of videos, but for the staff at the separate meeting place, when the video at the meeting place is switched to the main video, the staff at the meeting place needs to judge whether the meeting place where the staff is located is selected as the main picture of the current video through an extra way, such as extra conversation or carefully listening to the introduction of the current main meeting place, so that the staff at the meeting place is difficult to accurately judge the state information of the video picture of the meeting place, the disconnection is easy to occur during the switching between the main meeting place and the separate meeting place, and the meeting requirement of high picture switching engagement degree cannot be well met.
Disclosure of Invention
The invention aims to provide a multi-path video pre-monitoring method and system, which are characterized in that image frame data and source identification information of a source video are acquired and packed into image frame data packets, scaling processing is carried out on the image frame data packets according to preset resolution to generate processed video, the multi-path processed video is superimposed to generate a pre-monitoring picture and displayed, one path of pre-monitoring frequency is selected to be a main video, a selected signal is sent to a video source end of the path of video, and the video source end is prompted, so that personnel at the video source end can confirm selected state information in real time, the switching connection smoothness of the pre-monitoring picture is improved, and the condition that personnel react untimely during switching of the pre-monitoring picture is avoided.
To achieve the above object, a first aspect of the present invention provides a multi-path video pre-monitoring method, which is characterized in that the method includes:
acquiring image frame data and source identification information of a source video, and packaging the image frame data and the source identification information into an image frame data packet;
scaling the image frame data packet according to a preset resolution ratio to generate a processed video;
superposing the multiple paths of processed videos to generate a pre-monitoring picture, and outputting and displaying the pre-monitoring picture;
and selecting one path of processed video from the pre-monitoring picture to become a main video, and sending a selected signal to a video source end corresponding to the source identification information according to the source identification information of the selected processed video.
Preferably, the packaging the image frame data and the source identification information into an image frame data packet specifically includes:
adding the source identification information to the image frame data to generate identification image frame data;
and packaging the identification image frame data to generate an image frame data packet.
Preferably, the overlapping processing is performed on the multiple paths of processed videos to generate a pre-monitoring picture, which specifically includes:
receiving an input display mode;
and superposing a plurality of the processed videos according to the display mode to generate a pre-monitoring picture.
Further preferably, the display mode is a picture-in-picture mode, a picture-outside-picture mode, or a split screen mode.
Further preferably, the split screen mode is an equal split screen mode or an unequal split screen mode.
In a second aspect of the present invention, there is provided a multi-channel video pre-monitoring system, the system comprising:
the video packaging module is used for acquiring image frame data and source identification information of the source video and packaging the image frame data and the source identification information into an image frame data packet;
the video scaling module is used for scaling the image frame data packet according to a preset resolution ratio to generate a processed video;
the pre-monitoring module is used for carrying out superposition processing on a plurality of paths of the processed videos to generate a pre-monitoring picture and outputting and displaying the pre-monitoring picture; the pre-monitoring module is also used for selecting one path of processed video from the pre-monitoring picture to be a main video, and sending the selected signal to a video source end corresponding to the source identification information according to the source identification information of the selected processed video.
The embodiment of the invention provides a multi-path video pre-monitoring method and a multi-path video pre-monitoring system, which are characterized in that image frame data and source identification information of a source video are acquired and packed into image frame data packets, the image frame data packets are scaled according to preset resolution to generate processed videos, the multi-path processed videos are superimposed to generate a pre-monitoring picture and displayed, one path of pre-monitoring frequency is selected to be a main video, selected signals are sent to a video source end of the path of video, and the video source end is prompted, so that personnel at the video source end can confirm selected state information in real time, the switching connection smoothness of the pre-monitoring picture is improved, and the condition that personnel react untimely during the switching of the pre-monitoring picture is avoided.
Drawings
FIG. 1 is a flowchart of a multi-channel video pre-monitoring method according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a multi-channel video pre-monitoring system according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the multi-channel video pre-monitoring method and system provided by the embodiment of the invention, the image frame data and the source identification information of the source video are acquired and packaged into the image frame data packet, the image frame data packet is scaled according to the preset resolution ratio to generate the processed video, the multi-channel processed video is superimposed to generate the pre-monitoring picture and displayed, one channel of pre-monitoring frequency is selected to be the main video, the selected signal is sent to the video source end of the channel of video, and the video source end is prompted, so that personnel at the video source end can confirm the selected state information in real time, the switching connection smoothness of the pre-monitoring picture is improved, and the condition that the personnel react untimely during the switching of the pre-monitoring picture is avoided.
Example 1
Fig. 1 is a flowchart of a multi-path video pre-monitoring method according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step 101, acquiring image frame data and source identification information of a source video, and packaging the image frame data and the source identification information into an image frame data packet.
Specifically, a source video from a video source terminal is obtained, and image frame data of the source video and source identification information for identifying the video source terminal are extracted. And adding the source identification information into the image frame data to generate identification image frame data with the identification information, and packaging the identification image frame data to generate an image frame data packet. And processing each path of video of the multiple paths of videos according to the processing mode to generate an image frame data packet of the path of video.
And 102, performing scaling processing on the image frame data packet according to a preset resolution to generate a processed video.
Specifically, scaling the image frame data packet according to a preset resolution, and then generating a processed video; the preset resolution is related to the transmission bandwidth of the data transmission channel of the image frame data packet, and the resolution of the video after the scaling processing is equal to the preset resolution.
And 103, performing superposition processing on the video after the multipath processing to generate a pre-monitoring picture, and outputting and displaying the pre-monitoring picture.
Specifically, each path of source video of the multiple paths of videos is processed in the steps 101 and 102 to generate respective corresponding processed videos, and the multiple paths of processed videos are subjected to superposition processing to generate a pre-monitoring picture and output and display the pre-monitoring picture to a pre-monitoring window. The display mode of the pre-monitoring picture generated by the superposition processing comprises a picture-in-picture mode, a picture-outside picture mode or a split screen mode, and the split screen mode can be an equal split screen mode or an unequal split screen mode. The display mode can be replaced by receiving the display mode parameters input by the pre-monitoring staff, and the display mode of the pre-monitoring picture can be adjusted at any time according to the display mode input by the control staff.
Step 104, selecting a path of processed video from the pre-monitor picture to become a main video, and sending the selected signal to the video source end corresponding to the source identification information according to the source identification information of the selected processed video.
Specifically, the picture switching control personnel operate the switching of the video through the pre-monitoring picture displayed by the pre-monitoring window, when one path of video needs to be switched, the path of video is selected from the pre-monitoring picture and is switched into the main video, and the selected signal is sent to the video source end corresponding to the source identification information according to the source identification information in the selected processed video. The related staff at the video source end can timely and accurately know that the local video of the staff is selected as the main video, and the occurrence of the disconnection condition is avoided.
Similarly, the invention can send the cut-away signal to the video source end of the video according to the source identification information of the cut-away processed video so as to inform the related staff of the video that the video is switched, so that the staff of the video can timely and accurately obtain the related signal prompt.
Example two
Fig. 2 is a schematic structural diagram of a multi-path video pre-monitoring system according to a second embodiment of the present invention, as shown in fig. 2, where the system includes: video source 20, video packaging module 21, video scaling module 22 and pre-monitoring module 23.
Specifically, the video packaging module 21 is configured to acquire image frame data and source identification information of a source video, and package the image frame data and the source identification information into an image frame data packet;
the video scaling module 22 is configured to perform scaling processing on the image frame data packet according to a preset resolution to generate a processed video;
the pre-monitoring module 23 is used for performing superposition processing on the multi-path processed video to generate a pre-monitoring picture and outputting and displaying the pre-monitoring picture; the pre-monitoring module 23 is further configured to select one path of processed video from the pre-monitoring frame to be a main video, and send a selected signal to the video source end 20 corresponding to the source identification information according to the source identification information of the selected processed video.
The multi-channel video pre-monitoring system provided by the second embodiment of the present invention is used for implementing steps 101 to 104 in the first embodiment. The specific implementation manner and effect are the same as those of the first embodiment, and are not described herein.
According to the multi-channel video pre-monitoring method and system provided by the embodiment of the invention, the image frame data and the source identification information of the source video are acquired and packaged into the image frame data packet, the image frame data packet is scaled according to the preset resolution ratio to generate the processed video, the multi-channel processed video is superimposed to generate the pre-monitoring picture and displayed, one channel of pre-monitoring frequency is selected to be the main video, the selected signal is sent to the video source end of the channel of video, and the video source end is prompted, so that personnel at the video source end can confirm the selected state information in real time, the switching connection smoothness of the pre-monitoring picture is improved, and the condition that the personnel react untimely during the switching of the pre-monitoring picture is avoided.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of function in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. A method of multi-path video pre-monitoring, the method comprising:
acquiring image frame data and source identification information of a source video, and packaging the image frame data and the source identification information into an image frame data packet;
scaling the image frame data packet according to a preset resolution ratio to generate a processed video;
superposing the multiple paths of processed videos to generate a pre-monitoring picture, and outputting and displaying the pre-monitoring picture;
selecting one path of processed video from the pre-monitoring picture to become a main video, and sending a selected signal to a video source end corresponding to source identification information according to the source identification information of the selected processed video;
and superposing the plurality of processed videos to generate a pre-monitoring picture, wherein the pre-monitoring picture is specifically as follows:
receiving an input display mode;
superposing a plurality of processed videos according to the display mode to generate a pre-monitoring picture;
the display mode is a picture-in-picture mode, a picture-outside-picture mode or a split screen mode;
and sending the cut-away signal to a video source end of the cut-away processed video according to the source identification information of the cut-away processed video.
2. The multi-channel video pre-monitoring method according to claim 1, wherein said packaging said image frame data and source identification information into an image frame data packet, comprises:
adding the source identification information to the image frame data to generate identification image frame data;
and packaging the identification image frame data to generate an image frame data packet.
3. The multi-channel video pre-monitoring method according to claim 1, wherein the split screen mode is an equal split screen mode or an unequal split screen mode.
4. A multi-channel video pre-monitoring system, the system comprising:
the video packaging module is used for acquiring image frame data and source identification information of the source video and packaging the image frame data and the source identification information into an image frame data packet;
the video scaling module is used for scaling the image frame data packet according to a preset resolution ratio to generate a processed video;
the pre-monitoring module is used for carrying out superposition processing on a plurality of paths of the processed videos to generate a pre-monitoring picture and outputting and displaying the pre-monitoring picture; the pre-monitoring module is also used for selecting one path of processed video from the pre-monitoring picture to be a main video, and sending a selected signal to a video source end corresponding to the source identification information according to the source identification information of the selected processed video;
the pre-monitoring module is also used for receiving an input display mode and carrying out superposition processing on a plurality of paths of processed videos according to the display mode to generate a pre-monitoring picture; the display mode is a picture-in-picture mode, a picture-outside-picture mode or a split screen mode;
the pre-monitoring module is further used for sending the cut-away signal to a video source end of the cut-away processed video according to the source identification information of the cut-away processed video.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479998A (en) * | 2000-12-12 | 2004-03-03 | ض� | Automatic multi-camera video compsition |
| CN101056384A (en) * | 2006-04-11 | 2007-10-17 | 华为技术有限公司 | Implementation method of remote monitoring service and video terminal device |
| CN107360471A (en) * | 2016-05-10 | 2017-11-17 | 中兴通讯股份有限公司 | A kind of method and device that remote monitoring is realized in TV conference system |
| CN112616033A (en) * | 2020-11-27 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | Multichannel video source pre-monitoring method and system and video processing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7679640B2 (en) * | 2005-01-27 | 2010-03-16 | Polycom, Inc. | Method and system for conducting a sub-videoconference from a main videoconference |
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- 2023-08-02 CN CN202310960217.6A patent/CN116668626B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479998A (en) * | 2000-12-12 | 2004-03-03 | ض� | Automatic multi-camera video compsition |
| CN101056384A (en) * | 2006-04-11 | 2007-10-17 | 华为技术有限公司 | Implementation method of remote monitoring service and video terminal device |
| CN107360471A (en) * | 2016-05-10 | 2017-11-17 | 中兴通讯股份有限公司 | A kind of method and device that remote monitoring is realized in TV conference system |
| CN112616033A (en) * | 2020-11-27 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | Multichannel video source pre-monitoring method and system and video processing equipment |
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