52 results about "Desktop Video" patented technology

The invention provides a cloud terminal screen recording method. The cloud terminal screen recording method comprises the following steps that (11) a desktop connecting request is detected through a Qemu; (12) whether a request for cutting off desktop connection exists or not is detected constantly in a Qemu process, if the request for cutting off the desktop connection exists, the step (16) is executed, the screen recording of this time is ended, a screen recording file of this time is saved, and if the request for cutting off the desktop connection does not exist, the step (13) is conducted to continue screen recording; (13) a video frame monitoring module is used for detecting whether a desktop operation event exists or not and whether a video frame change exists or not; (14) a video frame at the time is redundant information, and the operation of writing video frame data into the screen recording file is stopped temporally; (15) desktop video frame data are obtained through a Qemu interface and written into the screen recording file of this time, in other words, the video frame data are continually written into the screen recording file; (16) screen recording is ended, and the screen recording file of this time is saved. By means of the cloud terminal screen recording method, the operation of a user on a terminal can be all recorded for safety audit, meanwhile, the storage space can be saved, and the screen recording efficiency can be improved.

A system, method and apparatus which permits the use of a wireless cell phone or other communications device as a connection, communications and control device able to connect a full-sized desktop monitor or other digital display device, keyboard, mouse, speakers, printer and other external devices to a wireless cell phone device using any combination of wireline or wireless connections from the desktop devices to the wireless cell phone device. The wireless cell phone device is used to create an Internet or other network connection capable of accessing any browser-based web site or browser-based software application commonly accessible to a standard desktop computer having an Internet connection. Once the connections between the desktop monitor, keyboard, mouse, speakers, printer and other components are established with the wireless cell phone device and the Internet connection is established with the wireless cell phone device, the user may access any browser-based web site or software application using the desktop monitor, keyboard, mouse, speakers, printer and other components. Access to Internet software, services and media includes all forms of browser-based desktop software, as well as digital movies, music, and streaming video.

The invention discloses a method, a device and a system for acquiring virtual machine terminal data. The method for acquiring the virtual machine terminal data comprises that: a cloud client terminal receives a virtual machine list sent by a cloud server; the cloud client terminal issues a terminal data interception command to any one or multiple virtual machines in the virtual machine list; and the cloud client terminal receives the terminal data returned by the cloud server, wherein the cloud server uses the terminal data interception command to acquire the terminal data on the virtual machines. With the method, an effect of a desktop video recording function on the virtual machines of the client terminal can be realized without installation of software.

The invention relates to a bandwidth-adaptive video conference. A video mode is dynamically selected and the scalable video CODEC (SVC) technology is combined with the P2P technology. Besides, an internet service mode is used to provide a virtual video conference room and a desktop video service for an enterprise, thereby saving cost for construction of a video conference room by the enterprise. Moreover, a hiring mode is employed, so that a video conference can be held anywhere at any time.

Disclosed is a method for remotely smoothly playing a desktop video in an API (application programming interface) interception mode. The method includes intercepting a graphic drawing event of a Flash plug-in unit on a browser at a server side, intercepting image data when a program on a server is about to output an image to a screen, and judging whether an area is a continuous image area or not after the image data and the graphic drawing area are intercepted; compressing data by the aid of a video data compression module if the area is the continuously variable video area, and then transmitting the data to a client side; and decoding the data on the client side after the client side receives the image data, then displaying the decoded data at corresponding positions of a remote desktop connected with the client side, and completing remote display of the Flash image data. By the aid of the method, the graphic drawing API event of a system is intercepted, accordingly, compression rate of the image can be greatly increased, delay of the image data during network transmission is reduced simultaneously, and the purpose of improving a video playing effect under remote connection is achieved.

The invention relates to the fields of computers and communication technologies, particularly to a method for realizing remote desktop display and a device thereof. A desktop providing terminal acquires desktop video streams by a filling buffer function in a desktop acquisition module. An instant communication module sends the acquired desktop video streams to a remote terminal to realize the remote desktop display, wherein, both the desktop acquisition module and the instant communication module are based on a DirectShow architecture so as to solve the problem of inconvenient operation in the prior art.

A processing method of video redirection, a cloud terminal and a cloud desktop server, comprising: the cloud desktop server determines position information of a cloud desktop video image screen positioned according to image characteristics, and sends the position information to the cloud terminal. The cloud terminal obtains the position information of the cloud desktop video image screen positioned according to the image characteristics, and plays the local video image according to the position information. The application can improve the video playback fluency.

The invention discloses a desktop video encoding control system based on content analysis, and relates to a device for sending a screen image video. The desktop video encoding control system comprisesa screen video acquisition module, a screen image content analysis module and multiple paths of video encoders, wherein the screen video acquisition module is configured to acquire a screen image ofthe device in real time; the screen image content analysis module is configured to carry out analysis on each frame of acquired screen image; the multiple paths of video encoders are configured to carry out video encoding on the acquired screen image in parallel or as required; and the device is configured to select a video output by one of the multiple paths of video encoders according to an analysis result for sending. According to the invention, a bran-new system framework is used, the image is analyzed on the basis of desktop contents, and according to the analysis result, a code rate is distributed and a reference frame for transmitting the video is selected, so that the desktop video encoding control system can be more flexibly applicable to various different network conditions, thecontents are more reliably shared and transmitted, and use experience of a user is ensured.

The invention relates to the technical field of cloud desktops, and discloses a cloud desktop platform based on a video streaming technology. The platform comprises a cloud desktop management platform, a cloud desktop video streaming server and a cloud desktop client, wherein the cloud desktop management platform is responsible for desktop pool management, desktop management, user management and strategy management. The cloud desktop video streaming server is responsible for connection management of the cloud desktop client, acquisition and coding of desktop video streams, acquisition and coding of desktop audio streams, and receiving and processing of desktop control streams. The cloud desktop client is responsible for receiving a video stream, an audio stream and a control stream of thecloud desktop video streaming server, decoding and rendering the video stream, decoding and playing the audio stream, and receiving, collecting and processing the control stream. The cloud desktop based on the video streaming provided by the invention has the functions of the traditional cloud desktop, mainly utilizes the GPU/VGPU resources in the cloud resources, and saves more resources of the computing CPU than the traditional cloud desktop.

The invention provides a format conversion method for a computer desktop video from YUV444 to YUV420 based on chrominance information classification, comprising the following steps of: (1) inputting one frame of YUV444 video format data to be converted; (2) taking out an unconverted 2*2 chrominance component data block; (3) determining a belonging type of the 2*2 chrominance component data block and converting the 2*2 chrominance component data block into one chrominance component datum corresponding to a YUV420 format according to the belonging type; (4) taking out a next unconverted 2*2 chrominance component data block and repeating the steps (2)-(3) until all the 2*2 chrominance component data blocks of the current frame are converted; and (5) taking out all chrominance component data of the video data of the frame obtained from the step (1) to be combined with the converted chrominance component data to form YUV420 format video data. The computer desktop video with the YUV420 format has a good chrominance visual effect.

The invention discloses a multimedia redirection method and system based on a VDI technical architecture. The system includes a server assembly and a client assembly, wherein the server assembly includes a server communication module, a redirection management service assembly,and a virtual desktop video display module, and the client module includes a client communication module, a redirection management client assembly, and a local desktop video display module. According to the invention, local video files or web videos without any process keep an original coded format, and the server executes a simple file transmission operation or analyzing operation of video addresses, so that a plenty of bandwidth is not occupied, the resource demand for CPU and internal storage of a virtualization server is reduced, and the high-definition videos or videos better than the ultra-high-definition videos can be smoothly displayed by the users under the VDI technical architecture.

The invention discloses an Android video decoding hardware acceleration method based on a Linux desktop video card, which is applied to an environment in which a Linux system is compatible with an Android container and comprises the following steps: S1, loading a video decoding service of the Android container and initializing a video decoder; s2, the video decoder initializes a video decoding hardware acceleration interface; s3, the video decoder sends the video data packet to a video decoding hardware acceleration interface; s4, the video decoding hardware acceleration interface transmits the data packet into the Linux kernel, and the video card device decodes the data packet into a video frame; s5, the video decoder retrieves the decoded video frame through the video decoding hardware acceleration interface; and S6, the video decoding service sends the video frame to a video program for display. According to the method, the performance loss caused by video decoding by using a CPU (Central Processing Unit) is reduced, and the efficiency of Android video decoding is improved.

The invention discloses a building construction site emergency and rescue management system based on BIM (Building Information Modeling), and belongs to the technical field of building construction. The building construction site emergency and rescue management system comprises a BIM modeling module, dangerous source identification, an evaluation module, an emergency simulation module and a construction optimization module, wherein secondary development is carried out in BIM software, additionally with a safe evacuation simulation analysis module, an analysis function in emergency simulation software is added, and emergency rehearsal simulation analysis can be carried out in the most real scene, so that a result is more accurate, and the BIM technology advantage is greatly developed. According to the building construction site emergency and rescue management system based on the BIM disclosed by the invention, rehearsal of emergency pre-arranged planning is simulated, simulated animation is shown to homeowners and construction working personnel, and the simulated emergency pre-arranged planning can be conveniently understood, so that an intuitive impression can be made for working personnel; and compared with a way of text reading, oral description or desktop video, the building construction site emergency and rescue management system is more effective, and for difficult pre-arranged planning of field exercises, a way of using the animation undoubtedly plays a role in pre-arranged planning while the cost is reduced at the same time.

The invention discloses a monitoring method and device for a cloud desktop. The method includes the steps: sending a monitor request to a server of a cloud desktop system, and requesting monitoring of one or more cloud desktops of the cloud desktop system; receiving desktop video streams of one or more desktops sent from the server; and playing the desktop video streams of one or more desktops, and monitoring desktop operations of the one or more desktops.

The invention provides a method and device for sharing a terminal desktop, equipment and a medium. The invention is applied to the technical field of communication. The method is applied to a target all-in-one machine, and comprises the following steps: receiving a desktop video of a sending terminal sent by the sending terminal through long connection; decoding and displaying the desktop video; and sending the desktop video to other all-in-one machines in communication connection with the target all-in-one machine, so that the other all-in-one machines decode and display the desktop video. The desktop video projected by the sending terminal is shared to other all-in-one machines, and the other all-in-one machines can reversely control the sending terminal.

The embodiment of the invention provides a cloud desktop video playing method, a server, a terminal and a storage medium. The server sends an audio file stream and a video image file stream containedin a target media stream file to the terminal. The terminal can decode the target media stream file and then play the decoded target media stream file. Therefore, the problem of asynchronous sound andpicture is avoided. Meanwhile, when the client plays the video, the cloud desktop player can also play the false media, so that the crash of the cloud desktop player is avoided. Meanwhile, accordingto the playing scheme provided by the embodiment of the invention, video playing is carried out on the basis of replacing part of architecture parts of the original cloud desktop player, and a clientdoes not need to be researched, so that the problem that the playing scheme is limited by user habits is avoided, and the user experience is improved.

The invention discloses a multi-party online learning method based on double cameras, clients and a server. The method comprises the following steps of receiving multi-path media data sent by at leasttwo clients; wherein the multi-channel media data is collected from each client and comprises figure video data, desktop video data and audio data; wherein the client comprises a main speaking end and a listening end; distributing a display area for the figure video data and the desktop video data from each client according to a preset mode; wherein the display area comprises a main display areaand an auxiliary display area; respectively sending multiple paths of media data which are not acquired from the client to each client, so that the client synchronously displays the multiple paths ofmedia data according to the distributed display area; receiving a control signaling from the main speaking end; and changing distribution of the display area according to the control signaling of themain speaking end. According to the method, multi-point simultaneous multi-angle real-time video communication is realized, a learning state of students is easy to master, and the demonstration interaction effect is better.

The invention discloses a cloud desktop sharing method using a digital set-top box, which comprises the following steps that: a cloud desktop sharing control module requests a new stream address, anda cloud platform address management module generates a new stream address and returns the new stream address; the cloud desktop sharing control module captures current desktop display content to formdata streams, and pushes a multicast stream to a stream address; and a playing unit is called to play the shared video content after other cloud desktop sharing control modules request to join the multicast. The invention also discloses a cloud desktop sharing system using the digital set top box, which comprises a cloud desktop sharing control module for generating and distributing a stream address, and a cloud platform address management module, and further comprises a control unit for starting/ending cloud desktop sharing and obtaining the stream address and a cloud desktop list; a stream pushing unit used for forming desktop content into multicast data and pushing the multicast data to a stream address; and a playing unit used for playingvideo streams. According to the invention, the user can share screen resources of other users conveniently, and the cloud desktop video service is provided.

The invention relates to a remote monitor technique. In particular, the present invention relates to a method for real-time monitoring a remote control process by a third party and a system thereof, which are able to third-party monitor a control terminal and a controlled terminal in the remote control process. The method comprises steps of establishing a connection between a control terminal and a third party monitoring terminal; arranging the control terminal, the controlled terminal and the third party monitoring terminal in one and the same session based on the connection; the controlled terminal sending its desktop video to the third party monitoring terminal via a virtual display driver; and the third party monitoring terminal sending a predetermined control strategy to the controlled terminal.

The invention provides a video transmission management method based on a virtual machine, and a related device, and relates to the field of video diversion of virtual machines. The method is applied to a video diversion system, the video diversion system is in communication connection with a terminal, and the method comprises the steps of obtaining a video selection identifier sent by the terminal; judging whether a first video loading source corresponding to the video selection identifier is received; and if yes, sending the first video loading source to the terminal, so that the terminal plays the first video analyzed by the first video loading source. According to the method, a traditional complex process of server-side playing, screen recording, re-encoding, terminal receiving, decoding and displaying is replaced by a mode of directly decoding and playing the video at the display terminal, so that the video playing effect is greatly improved, the computing power consumption and thenetwork transmission pressure are greatly reduced, and the future requirements of virtual cloud desktop video playing are met.

The invention discloses a grouped discussion teaching method and system. The method comprises the steps: student equipment desktop video streams are obtained from student-side interaction boxes of allgroups; teaching equipment desktop video streams are acquired from a teaching equipment screen projection module; terminal devices of students and a teacher can participate in a grouped discussion teaching process; the teacher sends out a discussion scheduling instruction on a teaching touch screen; student equipment desktop video streams and teaching equipment desktop video streams which need tobe discussed are distributed to all groups and displayed on discussion touch screens of all groups; the students can label the student equipment desktop video streams and the teaching equipment desktop video streams by the discussion touch screens; and the marked student equipment desktop video streams and teaching equipment desktop video streams are displayed on a teaching touch screen and otherdiscussion touch screens at the same time, so that multi-point participation of teaching contents in multiple groups is realized, development of a collaborative teaching form in the grouped discussion teaching process is promoted, and the grouped discussion teaching efficiency is improved.