17 results about "Multimedia data streams" patented technology

Embodiments of the present disclosure provide a data processing method, an electronic device, and a non-transitory storage medium. The method includes: acquiring, when at least one target node cluster corresponding to a multimedia data stream acquisition request is found based on a pre-created mapping relationship, target stream pulling information of a current node cluster corresponding to the multimedia data stream acquisition request; and determining, when the target stream pulling information meets a preset condition, a target server address corresponding to the multimedia data stream acquisition request based on node information of nodes in the at least one target node cluster and the current node cluster so that a multimedia server provides a target service corresponding to the multimedia data stream acquisition request based on the target server address.

The invention discloses a dynamic multimedia data hash retrieval method and system based on extensible increment, and relates to the technical field of multimedia data retrieval. The method comprises the following steps: acquiring dynamic multimedia data to be retrieved; a pre-trained Hash retrieval large model is constructed, the Hash retrieval large model is trained by taking a bit extensible Hash center as global supervision information and taking tag cosine similarity as local supervision information, and specifically, generalization feature representation of new multimedia data maintaining new and old class discrimination is obtained through forward propagation; constructing a linear mapping relationship between the generalization feature representation and the hash code, and introducing an auxiliary variable to continuously update the hash function without playback; and utilizing the trained Hash retrieval large model to generate a query Hash code for the dynamic multimedia data to be retrieved, and utilizing the query Hash code to retrieve. According to the method, low memory occupation, high updating efficiency and non-forgetting retrieval of the dynamic multimedia data stream in the open environment are realized.

The application relates to the field of wireless communication chip data flow scheduling, and discloses a campus teaching service system and method applying 5G messages, which comprises a baseband buffer state monitoring module, a low-density parity check code decoding module, a physical layer resource mapping module and a baseband resource arbitration scheduling module. According to the number of unconfirmed transport blocks and the reserved bandwidth indicator, the system adjusts and reduces the modulation and coding strategy order of multimedia data flow through the baseband resource arbitration scheduling module, and synchronously adjusts the maximum iteration number of the low-density parity check code decoding module. When the core temperature change rate is greater than or equal to 0.5 DEG C / s, the temperature sampling compensation module is used to calculate the phase adjustment step, rewrite the time sequence generator register to finely adjust the starting time boundary of the air interface time slot, correct the clock phase temperature drift under high load, feed forward to eliminate the sudden load, avoid the risk of buffer queue overflow, in-situ repair the control time sequence retreat caused by heat dissipation, and guarantee the deterministic transmission of the baseband chip.

The invention relates to an interaction method and device based on screen connection, electronic equipment and a storage medium. The method comprises the steps that in response to a creation operation of a host account for a joint performance virtual space, the joint performance virtual space is created, and the joint performance virtual space comprises at least one joint performance account; determining target joint accounts from the at least one joint account, and pulling multimedia data streams of the target joint accounts from a server; and collecting a local audio stream in real time, converging the local audio stream and the multimedia data stream of each target joint-performance account according to a joint-performance mode to obtain a virtual space multimedia data stream, and playing the virtual space multimedia data stream in the joint-performance virtual space. By adopting the method, the flexibility of group broadcast operation can be improved.

A computing device includes a machine-readable medium and processing circuitry. The machine-readable medium stores instructions. The processing circuit loads and executes the instructions. The instruction comprises a Windows operating system, an AVStream driving program and a multimedia data flow model. The AVStream driver may be executed in a Windows operating system, wherein each AVStream pin of the AVStream driver is defined to be decoupled from a multimedia data stream. The multimedia data flow model can be executed in a Windows operating system, wherein the multimedia data flow model is used for processing at least multimedia data flow in a processing mode adopted in a non-Windows operating system during execution.

The application belongs to the field of cross-modal retrieval, and provides a multimedia data cross-modal retrieval method and system based on multi-label incremental hashing, extracts newly added multi-modal combined data and adaptive code length based on an online multimedia data stream; constructs a global hash center according to the relationship between the adaptive code length and the historical adaptive code length; obtains an initial global hash code based on the newly added multi-modal combined data and the global hash center; iteratively and alternately optimizes the initial global hash code based on a hash code optimization objective function, obtains an optimal newly added hash code, and merges the optimal newly added hash code with historical hash codes to obtain a global hash code; solves a linear regression model based on the global hash code to obtain a projection matrix of each mode; encodes a to-be-retrieved sample according to the projection matrix of the corresponding mode to obtain a retrieval result; the application adapts to a multi-label incremental scene, supports dynamic expansion of hash codes, and does not need to play back old data, so as to solve the efficiency, precision and privacy pain points of the existing online cross-modal hashing scheme.

The application provides a digital twin reservoir scene pixel streaming method, analyzes space reference model data to extract a reservoir space global master reference node and a reservoir local business view node, and establishes a topological association structure based on a document relationship mapping record set; encapsulates hydrological monitoring attribute data and mounts a generated digital twin reservoir scene structure tree; renders a three-dimensional scene rendering frame on a remote server, captures a three-dimensional scene rendering frame and a scene audio signal and encodes and encapsulates them into a multimedia data stream, so as to be displayed on a client browser, thereby reducing the three-dimensional rendering burden on the client side.

The invention relates to the technical field of stream pushing, and provides a multimedia data stream pushing method, a terminal, a system and a storage medium, and the method comprises the steps: controlling AR equipment connected with the terminal to carry out multimedia data collection in response to a setting operation of live broadcast through the AR equipment; receiving a multimedia data stream transmitted by the AR equipment, and caching the multimedia data stream; and reading the multimedia data stream, and pushing the multimedia data stream to a streaming media server so as to perform live broadcast based on the streaming media server. According to the embodiment of the invention, multimedia data stream pushing based on the AR equipment is realized, so that live broadcast through the AR equipment is realized.

The invention belongs to the field of cross-modal retrieval, and provides a multimedia data cross-modal retrieval method and system based on multi-label incremental hashing, and the method comprises the steps: extracting newly-added multi-modal combined data and an adaptive code length based on an online multimedia data stream; constructing a global hash center according to the relationship between the adaptive code length and the historical adaptive code length; obtaining an initial global hash code based on the newly added multi-modal combined data and the global hash center; iteratively and alternately optimizing the initial global Hash code based on the Hash code optimization objective function to obtain an optimal newly-added Hash code, and combining the optimal newly-added Hash code with the historical Hash code to obtain a global Hash code; solving the linear regression model based on the global hash code to obtain a projection matrix of each modal; encoding according to the projection matrix of the corresponding mode of the to-be-retrieved sample to obtain a retrieval result; the method is adaptive to a multi-label increment scene, supports dynamic expansion of hash codes, and does not need to play back old data, so that the problems of efficiency, precision and privacy pain points of an existing online cross-modal hash scheme are solved.

The embodiment of the invention provides a message processing method and device, electronic equipment, a storage medium and a program product, and the method comprises the steps: obtaining a first interaction message, the first interaction message comprises a message issued by a server in response to an interaction request of a client, and the first interaction message comprises a response timestamp, the response timestamp indicates the time when the server receives the interaction request; according to the response timestamp and delay time, target execution time of an interaction task corresponding to the first interaction message is determined, and the delay time comprises multimedia data stream delay time corresponding to the interaction task; and in response to the target execution time and the local timestamp meeting a preset condition, executing the interaction task. And the target execution time of the interactive task is combined with the delay time of the multimedia data stream, so that the execution of the interactive task and the time synchronization of the multimedia data stream are realized.

The invention relates to an AI technology-based intelligent non-perpetual content pushing method and system, and the method comprises the steps: S1, carrying out the multi-modal feature analysis of an obtained original multimedia data stream of a non-perpetual item, and forming a feature vector signal which uniformly represents the depth semantics of the non-perpetual content; s2, collecting a historical behavior data sequence and real-time context awareness data of the user, and generating a dynamic user interest vector signal reflecting the real-time interest tendency of the user; s3, performing matching degree calculation on the feature vector signal and the dynamic user interest vector signal to generate an initial push candidate set signal fusing user preference and content diversity; s4, performing interpretable reasoning on items in the initial push candidate set signal to generate a recommendation reason signal; and S5, the push content with the recommended reason signal is sent to the user terminal after being sorted according to the priority. According to the AI technology-based intelligent pushing method and system for the non-missing content, the problems of insufficient personalized pushing of the non-missing content and low cultural transmission efficiency can be solved.

Disclosed are a service management method and system, and a configuration server and an edge computing device. The system comprises: a configuration server, an edge computing device, a terminal device and a display device; the configuration server provides a front-end configuration page and receives configuration information by means of the front-end configuration page, the configuration information comprises the edge computing device, the terminal device and a required AI service, and the AI service comprises one or more edge applications; the configuration server performs edge application deployment on the edge computing device according to the configuration information, and receives a reasoning result from the edge computing device; the edge computing device acquires a multimedia data stream of the terminal device according to a deployed edge application, and performs application reasoning to obtain the reasoning result; and the display device performs display according to the reasoning result.

The embodiment of the invention provides a data processing method and device, equipment, a medium and a product. The method comprises the steps that in response to a data acquisition event sent by a first special effect rendering instance, available rendering data corresponding to the data acquisition event is acquired and cached; in response to the special effect rendering event, performing verification processing on the available rendering data according to the reusable rendering attribute so as to perform special effect processing on the available rendering data based on the first special effect rendering instance when a verification result meets a preset condition; and fusing the special effect rendering result with a multimedia data stream pushed to a target client to obtain a target video stream displayed on the target client, the target client being a client corresponding to the first object, and the multimedia data stream being a multimedia data stream collected by a client corresponding to the second object. According to the technical scheme of the embodiment of the invention, the rendering calculation amount can be reduced, and meanwhile, the special effect rendering efficiency is improved.

The invention discloses a cross-device multimedia data stream transmission method, a storage medium and a vehicle, and the method comprises the steps: obtaining a multimedia data stream collected in real time, and continuously monitoring the use condition of a main buffer region used for temporarily storing the multimedia data stream; dynamically evaluating whether the capacity of an effective buffer area for temporarily storing the multimedia data stream needs to be adjusted or not according to the use condition of the main buffer area; and if it is determined that the capacity of the effective buffer area needs to be adjusted, adjusting the capacity of the effective buffer area to store the multimedia data stream. By monitoring the use condition of the main buffer area in real time and dynamically adjusting the capacity of the buffer area for temporarily storing the multimedia data stream based on the monitoring result, a buffer mechanism capable of adaptively adjusting the buffer capacity according to the actual load is formed, the situation that the multimedia data is discarded due to insufficient capacity of the buffer area is avoided, and the service life of the multimedia data stream is prolonged. The continuity of multimedia data transmission and the fluency of the screen projection process are remarkably improved, and better screen projection experience is provided for users.

The embodiment of the invention discloses a multimedia data circulation method and device, electronic equipment and a program product. The method is applied to a first electronic device and a local area network connected with the first electronic device, and a plurality of second electronic devices are further included. The method comprises the following steps: collecting multimedia data; encoding the multimedia data through an encoding module according to the target encoding parameter to obtain a media stream; wherein the target coding parameter is determined according to transmission capabilities corresponding to a plurality of data transmission channels among a plurality of electronic devices under the local area network; and sending the media stream to each target second electronic device through a data transmission channel with one or more target second electronic devices. According to the multimedia data transfer method and device, the electronic equipment and the program product, the power consumption generated by the first electronic equipment can be reduced while a one-to-many multimedia data sharing function is realized, and the stability of multimedia data transmission is ensured.

Embodiments of the present disclosure provide a data processing method, a device, and a medium. The method includes: in response to a data acquisition event sent by a first effect rendering instance, acquiring and caching available rendering data corresponding to the data acquisition event; in response to an effect rendering event, verifying the available rendering data according to a reusable rendering attribute, so as to perform effect processing on the available rendering data based on the first effect rendering instance when a verification result meets a preset condition; and fusing an effect rendering result with a multimedia data stream pushed to a target client to obtain a target video stream displayed on the target client, in which the target client is a client corresponding to the first object, and the multimedia data stream is a multimedia data stream collected by a client corresponding to the second object.