19results about How to "Achieve playback" patented technology

The invention relates to a video playing method and system, and the method comprises the steps: building a transmission buffer region between a playing end link of a player according to a received on-demand request of the player, monitoring and calculating the video frame data size in the transmission buffer region in real time, thereby obtaining a current network state, and when a forwarding request of frame data is received, sending the frame data to the playing end link of the player. And dynamically adjusting a sending strategy to forward the frame data according to the current network state, wherein the sending strategy comprises a frame loss strategy and a frame recovery strategy. Therefore, the sending cache region is independent of each playing end link, when network congestion occurs, only the network congestion of a single playing end link is caused, the whole is not influenced, the stability of frame data forwarding is ensured, the sending strategy is dynamically adjusted according to the current network state, and the sending speed is improved. And the sending strategy not only comprises a frame loss strategy, but also comprises a frame recovery strategy, so that the flexibility and stability of frame data forwarding are improved, the stability and smoothness of video playing are ensured, and the user experience is optimized.

The utility model relates to the technical field of sound boxes, and discloses a sound box with a touch type operation key function, which comprises a sound amplification tank body, wherein the sound amplification tank body is a ceramic tank; the cylinder body is detachably arranged on the sound amplification tank body; the sound equipment body is detachably mounted in the cylinder body; after the sound equipment body is installed in the cylinder body, a sound amplification chamber capable of amplifying sound is formed between an inner cavity of the sound amplification tank body and the sound equipment body, a plurality of sound output structures are arranged on the sound amplification tank body in the circumferential direction, and songs played by the sound equipment body can be transmitted outwards through the sound output structures after being amplified in the sound amplification chamber. And the touch display screen module is fixedly mounted on the circumferential side wall of the barrel. According to the utility model, the touch display screen module is electrically connected with the sound equipment body, so that a user can control the sound equipment body by operating the touch screen of the touch display screen module, namely, the user can select songs by operating the touch screen of the touch display screen module.

The invention discloses an audio playing method, an audio playing setting method and a vehicle. The audio playing method comprises the following steps: determining a target control screen for presenting a target audio playing application; according to the target control screen, determining a target user corresponding to the target control screen and a corresponding target sound area; determining a target audio resource and a target audio playing device corresponding to the target user according to the target user; and playing the target audio resource according to the target sound area and the target audio playing device. When the audio playing method is adopted to play the audio, the audio playing can be better realized based on the corresponding relationship among the control screen, the user, the sound area, the audio resource and the audio playing equipment, so that the requirements of the user on the audio playing equipment under different conditions are met. According to the audio playing method, the sound area and the audio playing device are controlled separately, so that the corresponding audio playing control system is more flexible in the use process.

The method for realizing data transmission and command interaction between double-layer networks of the present invention belongs to the field of avionics technology. The present invention provides a method for realizing data transmission and command interaction between double-layer networks, the main function of which is to observe the various parameters of the electrical system in real time when ground crew maintains the aircraft, and to store normal information and fault information for a short time, and to realize the playback of stored data through data transmission between double-layer networks. The human-machine interaction interface of the avionics system on the aircraft is operated to play back the data stored normally and faulty for each power supply parameter of the electrical network system, which is convenient for ground crew to maintain the aircraft and improve efficiency.

The present invention provides a data transmission method, a terminal device and a data storage system. The data transmission method includes: acquiring multimedia data; dividing the multimedia data into N data blocks according to the network access status of a first terminal; storing N1 data blocks of the N data blocks to the first server, and storing N2 data blocks of the N data blocks to the second server according to the connection status of the first terminal with a first server and a second server, where N1+N2≤N. The scheme of the present invention can realize the real-time transmission and storage of multimedia data, while ensuring the quality of multimedia data.

The invention provides a traffic playback method, device and equipment, which are used for solving the problem that the traffic playback cannot simulate the network communication behavior of multi-node interaction in a region in the related technology. The method comprises the following steps: firstly, dividing a traffic data packet to be played back into a plurality of sub-traffic data packets, then, distributing the plurality of sub-traffic data packets to a corresponding source virtual host and a target virtual host, and establishing a control channel and a data channel between the source virtual host and the target virtual host of the sub-traffic data packets; the source virtual host and the target virtual host transmit the corresponding relation between each session flow and the data channel through the control channel, and the source virtual host and the target virtual host carry out session flow playback through the data channel. According to the embodiment of the invention, the traffic data packet to be played back is divided into the plurality of sub-traffic data packets and is distributed to the plurality of virtual hosts, and the plurality of virtual hosts are dispatched and driven to receive and send the traffic data packets, so that traffic interaction and cooperative work among the plurality of virtual hosts are realized.

This invention relates to a radio frequency digital signal storage device, specifically to a system and method for implementing a multi-target long-delay DRFM storage component. It fully utilizes the high bandwidth characteristics of inexpensive dynamic random access memory (DRAM) to achieve high-bandwidth delay. The traditional alternating read / write operation in DRFM is converted into high-delay block read / write and fine-delay alternating read / write. Block read / write is performed in DDR memory, while alternating read / write is performed in the RAM within the FPGA chip. While fully utilizing the high bandwidth of DDR memory, the flexible high-speed random read / write characteristics of high-speed static memory compensate for the shortcomings of on-chip DDR memory in random read / write, achieving ultra-long delay times, reducing costs, achieving multi-target long delay, and improving work efficiency.

The invention provides a video playing method, device and equipment, a computer readable storage medium and a computer program product. The method comprises the steps that a to-be-processed video is acquired, texture data of each video frame in the to-be-processed video is determined, and the video format of the to-be-processed video is a video format which is not supported by an augmented reality device to play; for each video frame, performing rendering processing on texture data of the video frame to obtain processed texture data; creating a texture resource object, and adding the processed texture data to the texture resource object to obtain texture resource data; creating a material object, and binding the texture resource to the material object to obtain texture material data; and creating an entity object, and displaying the video frame based on the texture material data and the entity object. According to the invention, the success rate of video playing can be improved.

The present invention provides a method, device, medium, chip and system for controlling Bluetooth audio playback, the method comprising: step S100: a Bluetooth slave device establishes a connection with a first master device to form a basic piconet Piconet1, and the Bluetooth slave device establishes a connection with a second master device to form a basic piconet Piconet2; step S200: the Bluetooth slave device establishes a first playback sequence based on the piconet clock CLK1 of the basic piconet Piconet1, and establishes a second playback sequence based on the piconet clock CLK2 of the basic piconet Piconet2; step S300: converting the first playback sequence and the second playback sequence into a first playback sequence to be mixed and a second playback sequence to be mixed based on the Bluetooth slave device clock CLKS; step S400: based on the Bluetooth slave device clock CLKS, mixing and playing the first playback sequence to be mixed and the second playback sequence to be mixed. The method, device, medium, chip and system provided by the present invention can effectively realize two-way or multi-way audio playback.

The invention discloses a music score playing data interactive processing and displaying method for multiple chapters and music segments, which comprises the following steps of: processing, analyzing and identifying a scanning image of a music score document through an optical music score identification technology, finally obtaining digital expressions of a music score graph and music semantics, recording position information, and displaying the position information of the music score document; traversing all the position information of the stamps, the music segments and the bars; performing element extraction on notes of the music score, including stem extraction, head extraction and channel extraction, to obtain core and key data information of music score identification; according to single-sound and multi-sound music theory rules, setting a repeated starting point position, a repeated final point position and a playing sequence; and loading multimedia resources, and calculating the playing sequence of the single-sound part and the multi-sound part according to the starting point, the ending point and the sequence position information (X, Y, Z) of the steps. According to the invention, interaction processing of multi-row music score and multi-sound data can be realized, and display and playing can be realized after integration.

The present disclosure relates to a connection interface, a control method and device of the connection interface, an electronic device and a storage medium. The connection interface comprises: an interface connector provided with connection pins, the connection pins comprising audio pins and charging pins, the audio pins being connected with audio data output ends of an audio encoder; the charging pins being used to support charging and / or communication functions of a connection object; and an interface part having a first interface for docking with other interfaces, the first interface being electrically connected with the connection pins. The present disclosure makes full use of the audio data processing capability of a CPU in an electronic device, encodes the output audio data, and then outputs the encoded audio data to an external device through an interface, so that the external device does not need to have audio encoding and decoding processing capability and can also realize audio playing, thereby the external device can play audio by docking with the interface provided by the embodiment of the present disclosure, greatly reducing the cost of the external device.

The invention discloses an expressive art psychology assessment system based on virtual reality, and the system comprises a virtual reality interaction end which collects the interaction data of a user through a virtual reality device; the interaction data comprises head data, hand posture data and three-dimensional space drawing data obtained through a drawing interaction interface of the virtual reality interaction end; the user side provides a user interaction interface, a login interface, a therapist reservation interface, treatment record display and / or interaction data display are completed through the user interaction interface, and a user login request and a treatment reservation request are sent to the server side; and the server side executes user identity authentication and access authority control, establishes a data communication channel between the virtual reality interaction terminal and the user side, synchronously processes interaction data from the virtual reality interaction terminal in real time, stores the interaction data in a structured mode and associates the interaction data with treatment session data. According to the invention, the usability and convenience of the remote expression art treatment service are improved.

The invention provides a method and device for playing Linux audio in Android equipment, equipment and a medium, relates to the technical field of computers, and is used for solving the problems of relatively long time delay, reduced audio quality and the like caused by playing the Linux audio through an agent service of Android. The method comprises the following steps: in an Android system of Android equipment, opening a target sound card and target audio equipment; the Android equipment is provided with an Android system and a Linux system; in the Linux system, the access authority of the target sound card and the access authority of the target audio equipment are modified into pulseaudio service; configuring a target sound card and a target audio device in the configuration file of the pulseaudio service; the target audio equipment comprises target playing equipment; and starting a pulseaudio service, controlling the target sound card and the target playing device, and playing the audio of the Linux system. According to the method, the Linux audio is played in a mode of directly driving the sound card and the equipment in the Linux system without an Android system, so that the audio time delay can be reduced, and the audio quality can be improved.

The invention discloses an image processing method and system, electronic equipment and a storage medium, and relates to the technical field of image processing.The method comprises the steps that a multimedia file is obtained, the multimedia file is analyzed, and a first video stream representing a space video, a shooting pose parameter and a depth image sequence are obtained, the shooting pose parameter comprises a shooting path comprising a shooting pose, and the first video stream comprises a left-eye video stream and / or a right-eye video stream; obtaining a watching pose of the user, and determining a matched shooting pose matched with the watching pose in the shooting path; determining a first video frame corresponding to the matched shooting pose according to the first video stream, and determining a first depth image corresponding to the first video frame in the depth image sequence; and according to the watching pose, the matched shooting pose, the first video frame and the first depth image, generating a target image of which the playing view angle is a user watching view angle, and displaying the target image. According to the invention, dynamic adjustment of the playing visual angle is realized when the video is played.

The present invention discloses a HUD multi-screen display method and optical structure based on time sequence display, wherein the multi-screen HUD optical structure includes an imaging device, at least one reflective wheel, a reflector and at least two image display areas, wherein the reflective wheel is arranged between the reflector and the imaging device; the reflective wheel is divided into two or more parts, and is composed of a reflector and a hollow part. The projector of the present invention displays N images to be played in time sequence, and N-1 of the images played by the projector are respectively reflected to the image display area by the reflective wheel, and the last image is reflected to the image display area by the reflector, so as to achieve the purpose of displaying multiple screens. The present invention only needs to set a reflective wheel between the projector and the reflector to realize multi-screen playback, so it has the advantages of simple structure and strong industrial application prospects.

The invention provides a sequence frame digital content playing method, device and equipment and a computer readable medium, and the method comprises the steps: obtaining a basic material set which comprises a plurality of basic materials which are not repeated; the method comprises the following steps: acquiring a basic material set, generating a metadata file used for recording a reference relationship between a sequence frame bit and the basic material according to a material identifier of the basic material, packaging and generating a sequence frame digital content according to the basic material set and the metadata file, and sending the sequence frame digital content to the basic material set according to the sequence frame digital content. According to the method and the device, shared reference of the basic materials in different sequence frame positions can be realized based on the reference relationship recorded by the metadata file, and the repeated content of the basic material set is removed, so that repeated storage of materials such as the same picture can be avoided, the quantity of the materials such as the picture can be greatly reduced, and the size of a final resource packet is further reduced.

The present disclosure provides a video playback method, device, electronic device and storage medium. When a first video meets a playback start condition, a player that is recovered from a second video played before the first video and used when the second video is played can be obtained as an initial player, and then a first configuration file of the first video can be obtained. Based on the first configuration file and the initial player, the first video can be played. In this way, through the reuse of the player, the creation of the player in the video playback stage can be omitted, thereby greatly reducing the waiting time during video playback, reducing the consumption of page resources, helping to improve the loading efficiency of the video, reducing the video start time, quickly realizing the video playback, and improving the video playback effect.

The embodiment of the invention discloses a playing control method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: receiving to-be-played multimedia data, the multimedia data comprises video data and audio data of at least two audio tracks, and the audio data of each audio track is matched with the video data; storing the audio data of the at least two audio tracks in a cache; in response to the audio playing instruction, acquiring first audio data of a first audio track corresponding to the audio playing instruction from the cache, and synchronously playing the first audio data and the video data; and in response to the audio track switching instruction, acquiring second audio data of a second audio track corresponding to the audio track switching instruction from the cache according to the playing time information of the video data, and synchronously playing the second audio data and the video data. Sound and picture synchronization during audio track switching is realized, and the playing fluency during audio track switching is improved.

The embodiment of the invention provides a video playback method and device, equipment and a medium, and is used for solving the problem that video playback cannot be accurately and effectively realized when a version is changed in the related technology. In the embodiment of the invention, the electronic equipment obtains a playback identifier carried in a playback request and a version number of a service system currently applied by a client; acquiring a screen recording file corresponding to the playback identifier; if the version number is different from the initial version number, playing the screen recording file; acquiring a video frame image of the screen recording file; and based on the ffmpeg, converting each acquired video frame image into a video in a coding format corresponding to the version number. Therefore, the video of the coding format corresponding to the current version number can be generated based on the ffmpeg, and video playback can be accurately and effectively realized when the version changes.