723 results about "Transcoding" patented technology

A method includes receiving input frames of video information. An uplink channel receives a requirements indication from a mobile device configured to implement a diffusion model. Based upon the requirements indication, a current video coding modality is selected from among a first video coding modality and a second video coding modality where the first video coding modality utilizes diffusion, and the second video coding modality does not utilize diffusion. Video coding data is generated by processing the input frames of video information using the current video coding modality. The video coding data is sent to the mobile device.

A trained model is retrained for video quality assessment and used to identify sets of adaptive compression parameters for transcoding user generated video content. Using transfer learning, the model, which is initially trained for image object detection, is retrained for technical content assessment and then again retrained for video quality assessment. The model is then deployed into a transcoding pipeline and used for transcoding an input video stream of user generated content. The transcoding pipeline may be structured in one of several ways. In one example, a secondary pathway for video content analysis using the model is introduced into the pipeline, which does not interfere with the ultimate output of the transcoding should there be a network or other issue. In another example, the model is introduced as a library within the existing pipeline, which would maintain a single pathway, but ultimately is not expected to introduce significant latency.

The present invention provides a method for real-time parsing and dynamic decoding of audio and video streams in 5G enhanced calls, and relates to the field of new generation communication telephone technology. The first method is to perform audio and video media negotiation after the 5G enhanced call starts, read the SDP description information to separate the media description control information and the RTP data packet, separate the audio and video media stream data according to the media load type, parse the load data according to the RTP data protocol format, and parse the load data of the data packet in the call in real time. The second method is to retain the effective frame data, rearrange the frame data and compensate for the silent frame of the extracted AMR-WB voice data, parse the complete AMR-WB audio stream, and then determine the decoding parameters according to the obtained audio clock frequency, and transcode the AMR-WB audio stream into the PCM encoding format. This method can solve the problem that the existing technology cannot perform real-time parsing of audio and video streams under the 5G enhanced call network. Under the premise of ensuring the quality of 5G enhanced calls, recognizable transcoded audio is provided for intelligent interaction in calls.

The invention discloses a cultural heritage file multi-dimensional storage system, which relates to the field of cultural heritage digital protection and intelligent storage and comprises a data acquisition and processing module, a double-library management module, a multi-dimensional index retrieval engine, a security and convergence module and a backup and disaster recovery module. According to the method, structured texts and unstructured files are uniformly accessed through various interfaces, a special tool chain is adopted for format standardization, audios and videos are transcoded into an H.264 / AAC format through FFmpeg, images are subjected to resolution adjustment and compression through ImageMagick, plain texts are extracted from texts through ApacheTika and are converted into UTF-8 codes, standardized data are uniformly converted into an intermediate format, and the format of the intermediate format is converted into the intermediate format. According to the technical scheme, the method comprises the following steps of: standardizing input data by adopting a three-layer duplicate removal strategy, facilitating other modules to receive data, performing refined redundancy processing on the standardized input data by adopting a three-layer duplicate removal strategy, remarkably reducing storage redundancy, partitioning a cultural heritage data main library according to three layers of ''project type-medium type-age'', and partitioning an inheritor information library according to two levels of ''province-inheritor number prefix''.

A media server uses selective just-in-time (“JIT”) transcoding of media such as video. For example, the media server determines a measure of complexity of a given segment of a given media sequence. The given segment has been encoded at a base bit rate. The media server evaluates a complexity condition for the given segment. As part of evaluating the complexity condition, the media server compares the measure of complexity to a complexity threshold. Based at least in part on whether the complexity condition is satisfied, the media server selects between use of preemptive transcoding and use of JIT transcoding for the given segment at a given target bit rate. In this way, the media server can selectively incur the cost of preemptive transcoding operations for the given segment if JIT transcoding would likely introduce unacceptable delay, and the media server can otherwise use JIT transcoding operations for the given segment.

The invention relates to the technical field of data processing, and discloses a film and television supervision analysis method and system based on data mining and a storage medium. The method comprises the following steps: collecting film and television data in a panoramic manner, and carrying out cross-media transcoding processing to obtain a multi-dimensional data set; performing video semantic extraction, audio emotion recognition and text tendency analysis on the data set to generate a time sequence mark list; scoring the key elements according to social influence, propagation depth and audience acceptability to form a dynamic score table; analyzing the propagation path based on the score table, and constructing an influence map; sorting supervision points according to the atlas, and making an intelligent supervision scheme; the execution deviation is analyzed through effect feedback, and the supervision parameters are optimized. According to the method, multi-dimensional content feature extraction, social influence evaluation and propagation path analysis of the film and television works are realized in a mass multimedia content environment, a precise and differentiated intelligent supervision scheme is formed, and the method has self-optimization and adjustment capabilities at the same time.

An AI-based audio compression method for use with audio formats, alone or in combination with other audio compression and enhancement approaches. A combination of audio pre-processing, sound to visual transcoding of audio, and a sequence of AI-enabled methods enabling maximal entropy order extraction applied within the sound and dimensionally extended visual domain projection of the audio significantly increases the degree of compression of audio files, thereby reducing storage, transmission and processing overhead associated with audio. A unique AI-driven domain conversion is leveraged together with domain-specific AI processing stages to reduce file size, while supporting optional use of standard and proprietary audio encoding, decoding, compression, and other methods. Support for native mode photonic computer processing of the higher-dimensional order representation of media enables further optimization via photonic computing methods that would not be possible if the audio was not extended into higher order visual domain space.

The invention relates to the technical field of computer network data acquisition and processing, in particular to an intelligent news crawling system and method based on SpiderFlow, and the system comprises a dynamic time control module, an intelligent duplicate removal module, a paging processing module, a fault-tolerant data extraction module and a dynamic parameter configuration module. The dynamic time control module generates a time variable through a date calculation engine to realize accurate limitation of a crawling time range; the intelligent deduplication module adopts a three-level deduplication mechanism to ensure data uniqueness; the paging processing module supports static parameter and dynamic AJAX loading dual-mode paging, and realizes full-amount acquisition in combination with a self-increasing page number iterator and an intelligent termination strategy; the fault-tolerant data extraction module is integrated with CSS / XPath double parsers, and data integrity is guaranteed through field missing detection and messy code transcoding. Through multi-module cooperation and an intelligent algorithm, crawling efficiency, data quality and system stability are remarkably improved, and challenges such as webpage structure change and anti-crawling limitation are effectively handled.

A method includes: accessing a video in a passthrough rendition encoded according to a passthrough bitrate and a passthrough resolution; and segmenting the video. The method further includes transmitting a first passthrough segment to a first device in response to receiving a first request for a first playback segment of the video in the passthrough rendition from the first device, the first playback segment corresponding to the first passthrough segment. The method also includes, in response to receiving a second request for the first playback segment of the video in a first rendition from a second device, the first rendition defining a first bitrate below the passthrough bitrate and a first resolution below the passthrough resolution: transcoding the first passthrough segment into the first rendition segment in the first rendition according to the first bitrate and the first resolution; and transmitting the first rendition segment to the second device.

The invention relates to a dynamic double-layer hidden watermark and encryption binding file protection method and system based on deep learning, and belongs to the technical field of digital content security. The problems of attack resistance, traceability obstruction and key-watermark unhooking in document cross-platform circulation are solved. According to the scheme, the method comprises the following steps of: extracting semantic fingerprints by using a sentence vector model Sentence-BERT; the fuzzy extractor generates a master key and derives a time key chain; the authentication encryption algorithm AEAD encrypts and binds the source and the timestamp load; container layer structure rearrangement and document layer zero-width character double embedding are carried out; the generative adversarial network or diffusion model adversarial training improves the optical character recognition and transcoding resistance; version binding and tracing are achieved through the watermark hash chain. The technical effects cover anti-counterfeiting migration, cross-layer fault-tolerant guarantee recoverability, rearrangement attack resistance, full-period accurate traceability and post-quantum security enhancement.

The invention discloses a lightweight three-dimensional data format generation method suitable for ship model labeling, which comprises the following steps of: exporting a three-dimensional model file from ship design software, extracting a model attribute information file of the three-dimensional model file, analyzing the three-dimensional model file and the model attribute information file, and calculating to obtain attribute value information of a geometric body model in a model; the attribute value information of the geometry model is integrated and then converted into a lightweight data exchange format, a lightweight data exchange format file is converted into a binary format, and a lightweight three-dimensional data format file is obtained through transcoding and compression; and the lightweight three-dimensional data format file is stored in a database after being subjected to name matching based on the model attribute information. The volume of the lightweight three-dimensional data format file is small, only key data of the reduced model are reserved according to the characteristics of the ship model, and binary coding conversion and compression are performed on the file, so that the volume of the lightweight three-dimensional data format file is much smaller than that of a model file in a general format, and storage and network transmission are greatly facilitated.

The invention relates to an image transmission method and device based on layered coding and a storage medium, and the method comprises the steps: a coding unit receives a YUV444 format image, carries out the transcoding and chroma extraction, and obtains a basic coding layer and a chroma enhancement layer; the transmission unit uses the basic coding layer and the chroma enhancement layer as independent coding streams and sends the coding streams to a decoding unit; a decoding unit receives and decodes the basic coding layer coding stream and the chroma enhancement layer coding stream to obtain a basic image and a color enhancement image; the decoding unit reconstructs the base image and the color enhanced image into a YUV444 format image. According to the image transmission method based on layered coding, the problem of YUV420 color distortion is solved by independently transmitting chroma high-frequency information.

The invention discloses a cross-platform file transfer method in the mine field, which comprises the following steps: S1, mine file source identification and fluidization: docking an industrial internet platform, reading an original file generated by a specific business scene, and converting the original file into a file stream; s2, intelligent unified transcoding for the mining terminal: performing unified transcoding on the file stream through an intelligent transcoding engine; s3, encryption based on the mine data security level: carrying out encryption processing on the transcoded file; and S4, safe unloading driven by the mine service: receiving the encrypted transcoding file, and decrypting and decoding the encrypted transcoding file at a target mine terminal or a mine appointed storage node. According to the method, safe and efficient cross-platform transmission among mine multi-service systems is realized, the problem of mine terminal file compatibility is thoroughly solved, the file transmission and access efficiency in a mine weak network environment is remarkably improved, and a mine-level data security protection system is constructed.

The invention provides a multi-agent-based code conversion system and method. The method comprises the following steps: preprocessing an input source code; performing block processing on the source code to obtain source code blocks, obtaining variable information and array size information of the blocks corresponding to the source code, and integrating the variable information and the array size information into complete variable information; fusing the code description file, the code blocks of the source codes and the variable information of the blocks corresponding to the source codes to generate target code blocks; debugging and checking the target code blocks in combination with the source code blocks; the code description file is used for guiding the intelligent agent to establish a jumping type relation in the code conversion process, and it is ensured that the generated target code better meets the actual function requirement of hardware; a block identifier is inserted into a long code to divide the long code into a plurality of blocks, so that the limitation on long code conversion is relieved; codes of different styles can be output by simply adjusting the cue word of the intelligent agent; through multiple times of debugging verification, the conversion quality of the target code is ensured.

Methods, device and data stream are provided to encode unaligned multi-view plus depth images associated with assistance metadata for generating depth maps aligned with the unaligned color views. At the encoding stage, for an unaligned color view, the contribution of each depth map is evaluated. A subset of the most contributing depth maps is selected and metadata representative of this subset is encoded in the data stream of the unaligned multi-view plus depth images in association with the unaligned color view. At the decoding stage, to generate a depth map unaligned with the unaligned color view, only the depth maps referenced in the assistance metadata are warped.

In various examples, systems and methods are disclosed relating to accurately extracting requested portions of video data by concatenating video data with selective transcoding. The systems can receive a request indicating a start position and an end position and select a video data element including the start position. The systems can decode a portion of the video data element including the start position and encode a subset of a plurality of first frames of the video data element to provide a first video output. The systems can combine the first video output with a second video output that includes one or more second frames of the video data up until the end position.

Methods and apparatus for video processing are disclosed. The processing may include video encoding, video decoding, or video transcoding. An example method includes: for conversion between a video block of a video and a bitstream of the video, determining a size of a prediction block corresponding to the video block according to a rule; and performing the conversion based on the determination, wherein the rule stipulates that a first size of the prediction block is determined in response to whether a prediction refinement technique using optical flow is used to encode and decode the video block, and wherein the video block has a second size and is encoded and decoded using an affine merge mode or an affine advanced motion vector prediction mode.

The invention discloses a data migration method and device, equipment and a medium. The method comprises the following steps: creating a copy data table in a target database; detecting whether data in each stock data table in the to-be-migrated database contains illegal characters or not, and outputting data information of abnormal coded data containing the illegal characters to an abnormal data file; transcoding the normal coded data, importing the transcoded data into the corresponding copy data table, and importing the abnormal coded data into the corresponding copy data table in a hexadecimal mode; detecting whether each item of data in each incremental data table contains illegal characters or not; transcoding the data in each normal incremental data table, importing the transcoded data into the corresponding copy data table, and importing the data in each abnormal incremental data table into the corresponding copy data table in a hexadecimal mode. According to the embodiment of the invention, illegal characters in a non-domestic database can be processed, and the messy code problem and the error reporting problem caused by import failure are avoided.

The invention discloses an Android video self-adaptive secondary transcoding method and system and a medium, mainly relates to the technical field of secondary transcoding, and is used for solving the problem that part of videos cannot be played on some Android devices due to a transcoding mode in an existing scheme. Or the video playing experience is difficult to comprehensively optimize due to the fact that the video playing experience cannot be comprehensively optimized due to the fact that the video playing experience is not combined with the real-time feedback in the playing process. Comprising the steps that when it is determined that a playing report error occurs and the error indicates that the coding format is incompatible, the format with the highest priority in the coding formats supported by equipment is selected from a coding list contained in software parameters to serve as the final coding format, and secondary transcoding is conducted according to the final coding format; triggering a screen resolution and code rate down-regulation program when lagging occurs, a playing error occurs, the error is not incompatible in coding format or playing stagnation occurs, and the CPU load in the hardware parameters is greater than a preset value; and carrying out secondary transcoding based on the down-regulated screen resolution and code rate.

The invention belongs to the technical field of streaming media video narrow-band transmission, and particularly discloses a video narrow-band transmission method and device under a bandwidth limited condition and electronic equipment, and the method comprises the steps that a transmitting end obtains a target video stream, and decodes the target video stream to obtain a high-resolution original image video stream; extracting structured information of a dynamic target in an original picture video stream picture; and obtaining the packet loss rate of the original picture video stream, carrying out quality reduction transcoding processing on the original picture video stream under the condition that the packet loss rate is greater than 0, generating a low-bit-rate video stream, and sending the low-bit-rate video stream after the quality reduction transcoding processing and the structured information to a receiving end, otherwise, directly sending the original picture video stream and the structured information to the receiving end. And when a receiving end receives the low-bit-rate video stream after quality reduction and transcoding, image amplification and image quality enhancement are carried out on the low-bit-rate video stream by using the structured information. According to the method, the problem of video packet loss and jamming during high-definition narrowband video transmission application can be avoided.

Methods and apparatus for video processing are disclosed. The processing may include video encoding, video decoding, or video transcoding. One example method includes performing a conversion between a video including a picture including one or more slices and a bitstream of the video. The conversion conforms to a rule that specifies that whether a deblocking filter is applied to the one or more slices referring to a picture parameter set is based at least on a first syntax element included in the picture parameter set. The first syntax element indicates whether the deblocking filter is disabled for the picture.

The invention discloses a code conversion method and device, a page display method and device, a medium and equipment. The method comprises the steps that code conversion demand information is acquired, and cue words are constructed based on the code conversion demand information; inputting the cue word into a code generation model to enable the code generation model to generate a source code file of the initial conversion tool; performing transcoding processing on the test case through the initial conversion tool, and deploying a converted code to the environment of the target platform to run to obtain a code running result; constructing a repair prompt word based on the code operation result, and inputting the repair prompt word into a code generation model, so that the code generation model corrects a source code file of the initial conversion tool; a code conversion tool is obtained through testing and correction of multiple iterations; and transcoding the project source code file of the source code platform through the code conversion tool to obtain a code file of the target platform. According to the method, the cross-platform code conversion efficiency can be improved.

The invention discloses an RTSP protocol video stream conversion playing method and system based on a Web end, and relates to the technical field of video stream transmission, and the method comprises the steps: receiving and decapsulating an RTSP protocol video stream, and generating an original video data frame; performing coding conversion processing on the original video data frame based on a preset optimization parameter set to generate streaming media format data; the method comprises the following steps: performing transmission channel distribution on streaming media format data, establishing a multi-channel video stream transmission channel, and pushing the streaming media format data to a Web front end for video rendering, thereby realizing real-time low-delay playing of multi-channel RTSP protocol video streams at a browser end. According to the method and the device, the technical problems that an existing browser cannot directly play the RTSP protocol video stream and relatively high delay exists in the transcoding process are solved, and the technical effects that the browser can directly play the RTSP protocol video stream without a plug-in through the protocol conversion middleware and optimized transmission channel distribution, and the transcoding delay is remarkably reduced are achieved.

Information security systems and methods are presented including synchronized state machines operating with private data and tamper-evident identifiers that expand the problem space of attacks by unauthorized consumers of data in flight or rest to near infinity. A quantum cryptography-resistant distribution network for identity, trust relationship, encryption, and transcoding of valuable information is described where a priori knowledge of the hardware or software is irrelevant to the safe time for the data protected and modified as needed within a multikey encryption and data control and availability assurance domains. Due to its low compute design, the methods described within are well suited for a variety of tasks including real-time data streams such as video and audio distribution.

Methods and apparatus for video processing are described. The processing may include video encoding, video decoding, or video transcoding. An example video processing method includes performing a conversion between a video including one or more pictures including one or more subpictures and a bitstream of the video. The one or more pictures and / or the one or more subpictures are included into the bitstream according to an order rule. The order rule specifies a relationship between a position of a current instantaneous decoder refresh (IDR) picture or a current IDR subpicture in the bitstream with respect to another picture referred to by an entry in a reference picture list for a current slice of the current IDR picture or the current IDR subpicture.

A method includes: receiving a video file from a first publisher; partially decoding the video file based on visual characteristics in the video file to generate a proxy video representation of the video file. The method further includes, for a first resolution: accessing a first model associated with the first resolution, the first model configured to derive target bitrates based on resolutions and target viewing qualities; passing the proxy video representation and the source resolution to the first model; and receiving a first target bitrate for the first resolution returned by the first model. The method further includes: defining a first rendition, for the video file, characterized by the first resolution and the first target bitrate; generating an encoding ladder identifying the first rendition; and publishing the encoding ladder for access by a video player for streaming playback segments of the video file.

The embodiment of the invention provides an image data processing method and transcoding equipment, and relates to the technical field of data processing, the method is applied to the transcoding equipment, and the method comprises the following steps: sequentially writing image data of each frame into a first buffer area according to a frame sequence; for each first buffer area, decoding the image data of the current frame in the first buffer area, writing the image data into a second buffer area, setting the first buffer area to be in an idle state, detecting whether the second buffer area meeting a space release condition exists at present, and if yes, executing the step of decoding the image data of the current frame in the first buffer area; setting the second buffer area meeting the space release condition to be in an idle state; for each second buffer area, carrying out coding preprocessing on the decoding data stored in the second buffer area; encoding the frame structure data stored in each third buffer area to obtain transcoded image data of the target code stream; according to the scheme, the efficiency of the transcoding process of the code stream can be improved.

The invention discloses a multi-mode AI-driven short video automatic translation and speech synthesis system, which relates to the technical field of audio and video and comprises video acquisition, processing, translation and synthesis modules and the like. The video acquisition end receives various audio and video data submitted by a user and detects violation content; the primary processing end identifies formats of compliance data, transcodes the compliance data, separates audio and video streams, and further separates human voices and background voices; the video translation end extracts a human voice signal to generate a target language text, generates an audio stream in combination with rhythm features and a human voice module, and fits the audio stream with background sound; a video synthesis end extracts a lip image frame sequence from a video frame, generates a matched lip vertex displacement coordinate according to an audio frame sequence and renders the matched lip vertex displacement coordinate, and finally compresses, packages and outputs an audio and video synchronization sequence; various AI technologies are applied to the modules, automatic translation and speech synthesis of short videos are achieved, and the generation efficiency and quality of cross-language video content are improved.

The invention provides a video transcoding method and device, electronic equipment, a storage medium, a program product and a method for generating a bit stream. The video transcoding method comprises the following steps: extracting video features of currently received video clip data; processing the video features by using a pre-trained prediction model to obtain image quality frame rate mapping information of the video clip data, the image quality frame rate mapping information being used for representing a mapping relationship between a subjective image quality index and a frame rate; determining an optimal frame rate of the video clip data according to the image quality frame rate mapping information and the target subjective image quality index; and transcoding the video clip data according to the preferred frame rate to obtain video stream data corresponding to the video clip data. According to the method, the image quality and the frame rate can be dynamically optimized, and the watching experience of a user is improved.

The invention discloses a customer service method and device based on screen sharing, a storage medium and a program product, and relates to the technical field of communication. A user side responds to a customer service request and establishes connection with a customer service side; and the user side responds to the enabled screen sharing function, records the screen of the local equipment, and transcodes the recorded screen image to obtain a video stream. According to the technical scheme of the invention, when a user has problems such as operation questions, function use obstacles or interface abnormity about mobile applications, the user side can record the operation process of the user and transcode the operation process into the video stream, and the video stream is transmitted to the customer service side. A customer service can know the problems of operation questions, function use obstacles or interface abnormity and the like about the mobile application in real time through the video stream displayed at the customer service end, the problem positioning accuracy is improved, and the judgment error rate is reduced; therefore, the technical problems that a customer service support mechanism related to a mobile application is difficult to meet the requirement of a user for accurate guidance and the user experience is poor are solved.