410 results about "Transcoding" patented technology

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''.

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.

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 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.

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.

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.

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.

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 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.

An aspect of the disclosure related to methods and systems configured to detect that an item of streaming primary video content associated with a channel of scheduled streaming content is designated to be streamed to a device. Ancillary content is identified. Alternative versions of respective sections of the ancillary content are identified. Metadata corresponding to the alternative versions of ancillary content, metadata corresponding to the item of primary video content, and / or metadata corresponding to the channel are used in selecting a first section from among the alternative versions of a given section. The ancillary content, including the selected first section from among the alternative versions is streamed to the device immediately before, during, or immediately after the item of streaming video content. The alternative versions may be transcoded to generate multiple encoded iterations of respective alternative versions and the encoded versions are stored in a tree data structure.

The invention discloses a teaching live broadcast control method, a teaching live broadcast control system, a teaching live broadcast control medium and teaching live broadcast control equipment based on multi-protocol signal flow scheduling, a multi-protocol signal source is adaptively accessed, a protocol analysis plug-in is correspondingly loaded to analyze a protocol, and different types of heterogeneous flows are converted into standardized data flows. Extracting stream features, and performing scene recognition; and dynamically adjusting the bandwidth allocation strategy based on the network state and the terminal capability. And on the basis of the multi-target reinforcement learning model, generating an optimal strategy of bandwidth allocation for live broadcast stream pushing and local distribution requirements. Stream transcoding and format conversion are carried out, and multi-signal stream timestamps are dynamically calibrated and synchronized; based on a Transform model, multi-modal content matching is carried out, knowledge chain marks are generated, and finally terminal output is carried out. The method has the advantages of full-scene protocol compatibility, dynamic scene adaptive scheduling, intelligent resource dynamic allocation, high-precision time synchronization calibration and content intelligent association matching.

The invention provides an information processing method and system based on unmanned aerial vehicle video spatialization, and relates to the technical field of unmanned aerial vehicle video processing. Firstly, camera optical parameters, camera pose information and sensor type identification are collected and synchronously coded to a non-display data segment of an unmanned aerial vehicle video frame structure to form a coded video with multi-dimensional space information, and then a coded video stream is formed through streaming packaging. And performing scene-based transcoding adaptation on the coded video stream to obtain an adaptive video stream, performing hierarchical decoding and splitting, constructing a dynamic space mapping model in combination with an image correction model, and calculating the geographic range of a video frame to obtain a live video with a multi-reference geographic range identifier. Based on the live video, geographic data with ground feature attributes and recognition confidence are generated and transmitted in a multi-link mode, a feedback modification track is received and layered updating processing is executed, bidirectional dynamic synchronization and conflict resolution of the geographic data and the live video are achieved, and the quality and reliability of geographic information are improved.

Systems and methods are disclosed for generating an adaptive bitrate ladder for a content item based on the actual quality of the content item. A broadcaster determines a quality score of a content item and multiplexes a message indicating the quality score with data packets of the content item to a headend. The headend uses the quality score to determine an ABR ladder with a set of bitrates for the content item. The headend then transcodes the content item into the set of bitrates. The headend then transmits a plurality of network addresses, each corresponding to a stream at a particular bitrate, to a user gateway to enable the user gateway to make the streams available.

Systems and methods are described for transcoding at least a portion of a live media asset ingested from a media content source. The systems and methods may be configured to, in real time, after ingesting the at least a portion of the live media asset, determine parameters of the at least a portion of the live media asset. The systems and methods may be further configured to, in real time, after ingesting the at least a portion of the live media asset, determine, based on the parameters, a plurality of optimal bitrate-resolution pairs for the at least a portion of the live media asset. The systems and methods may be further configured to, in real time, after ingesting the at least a portion of the live media asset, cause the at least a portion of the live media asset to be transcoded based on the plurality of optimal bitrate-resolution pairs.

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, and the objects represented are mapped. Picture patches are cut to be homogeneous in terms of objects and contributing views. Metadata describing this homogeneous cut are encoded together with the atlas. At the decoding stage, to generate a depth map aligned with the unaligned color view, only the depth maps referenced in the assistance metadata are warped.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for video storage optimization. One of the methods includes obtaining data for a plurality of video files of a content delivery system, wherein the plurality of video files corresponds to a set of video ladders, each video ladder identifying a respective transcoding version of video content represented by a video file of the plurality of video file and having different parameters; for each video file, executing one or more respective storage strategies to compute one or more respective output video scores, wherein each storage strategy uses trained models to evaluate characteristics of the respective video file and estimate future viewing of the video file; and in response to evaluating the output video scores computed for each of the plurality of video files, determining one or more actions to reduce storage for the plurality of video files.

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

The invention discloses a distributed transcoding method and system. The method comprises the following steps: segmenting a video to be transcoded into N video slices; the method comprises the following steps of: calculating a load score of a resource node, scheduling a transcoding task according to the calculated load score of the resource node and the complexity of a video slice, transcoding the video slice in parallel, and finally merging the transcoded video slice according to a timestamp sequence to obtain a transcoded video. According to the invention, the corresponding resource nodes are allocated according to the overhead difference of transcoding of different video slices, the problem of load imbalance among the resource nodes is solved, and the average resource utilization rate of the whole cluster is greatly optimized and improved.

The invention relates to the technical field of material management, in particular to a cross-coding system material code automatic mapping and conversion method, which provides basic data support for dynamic mapping by acquiring historical material codes and mapping codes thereof as a training verification set and extracting structural feature vectors and code element value ranges of coding systems. A material code is subjected to sliding segmentation by utilizing a segmentation window technology, and a source coding system is determined by combining structural similarity and a code element value range, so that dynamic analysis and inverse coding processing of a complex coding structure are realized; and quality evaluation and parameter correction are carried out based on the similarity between the converted code and the mapping code, and limitation of static transcoding is avoided. According to the automatic mapping and conversion method for the material codes of the cross-coding system, the adaptive capacity and the dynamic adjustment capacity of transcoding are remarkably improved, and an effective scheme is provided for conversion and mapping of the codes in the large-scale material coding system.

The invention belongs to the technical field of optical transport networks (OTN), and particularly relates to a resource identifier storage and reading method for network management system data acquisition of OTN and WDM communication equipment, which comprises the following steps of: when the network management system data acquisition and reading are performed on the OTN and WDM communication equipment, performing bidirectional transcoding conversion between a resource identifier in a five-section layered form and an rmUID (Radio Mode Unified Identifier) identifier; a database static mapping table is prevented from being introduced, disk IO is reduced, the processing process is carried out in a memory, and the conversion efficiency is effectively improved; meanwhile, the 36-system is fully used for encoding each encoding segment in the rmUID, and under the encoding limiting condition that the longest bit of the rmUID limits 16 bits, the data encoding space is increased by about 10000 times compared with a 35-system and separator scheme, so that the utilization rate of the encoding space is expanded and increased to the maximum extent; the problems that in the prior art, conversion efficiency is poor, and the utilization rate of coding space is poor are effectively solved, and the method has good technical application prospects.

The disclosure relates to methods of generating or modifying a bitstream. These methods comprise obtaining (e.g., generating or receiving) the bitstream, wherein the bitstream contains coded time series data, determining a measure of distortion in relation to a portion of the coded time series data, and embedding distortion metadata into the bitstream, wherein the distortion metadata includes information indicative of the determined measure of distortion. The disclosure further relates to methods of transcoding or decoding such bitstream, as well as corresponding apparatus, programs, and computer-readable storage media.

The present application relates to the technical field of audio and video synchronization processing, more particularly to an audio and video synchronization method and system based on TS stream and a storage medium. The method comprises reading TS stream data frames and unpacking the TS stream data frames; a synchronization device acquires and calculates the difference between the PTS of the current frame and the previous frame, determines whether the difference is a TS abnormal data type; when the difference is a TS abnormal data type, the synchronization device further determines the type of the current frame; if the type of the current frame is a video frame, the synchronization device discards the current frame; if the type of the current frame is an audio frame, the synchronization device adjusts the offset value and determines whether the current frame is subjected to decoding processing; if the current frame is subjected to decoding processing, a transcoder performs decoding processing. The present application realizes normal transcoding and audio and video synchronization by offset detection and correction error avoidance stream.

The invention discloses a shadow mode-based data acquisition system and an acquisition method. The system comprises a shadow monitoring module, a time synchronization module, a transcoding mapping module and a security isolation mechanism module. According to the embodiment of the invention, the security isolation mechanism module and the shadow monitoring module are arranged, so that the data acquisition system is decoupled from the control link of the tested unmanned equipment, and zero-interference non-intrusive acquisition of the test data of the tested unmanned equipment can be realized; multi-source data synchronization is realized by setting a time synchronization module; and by arranging the transcoding mapping module, rapid adaptation of multiple platforms and multiple communication protocols can be supported, and the universality and efficiency of the acquisition system are improved. Therefore, according to the embodiment of the invention, a set of non-intrusive data acquisition system which completely decouples an operation link of the tested unmanned equipment, ensures standard communication process and has zero operation logic interference is constructed, the test data of the tested unmanned equipment can be completely captured and reconstructed, and basic data support is provided for test evaluation of the tested unmanned equipment.

The application discloses a high-definition playing method based on video background separation, comprising the following steps: S1, a streaming module pulls original data and sends the original data to a transcoding device; S2, the transcoding device performs secondary compression on the received original stream, extracts background content in the original stream and makes the background content into SEI segments; S3, the transcoding device transmits the secondary compressed data to the streaming module, at this time, the streaming module comprises the original stream and the compressed stream; S4, if a user watches a real-time stream, at this time, the compressed stream is transmitted to a client through a streaming media device, the client detects SEI, re-integrates the SEI segments, restores clear YUV background data, and superimposes the clear YUV background data on each frame of data of the compressed stream, so that the compressed stream is played in a clear state; the compressed stream enters a recording module and is stored, and in the recording process, an index module detects SEI frames carrying background data in real time and records indexes in disk storage, and the indexes correspond to recording segments.

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.

Embodiments of the present disclosure relate to a method for determining a video bitrate for a to-be-transcoded video performed by a computer device. The method includes: selecting target video frames from video frames of a to-be-transcoded video; determining bitrate feature information of the target video frames; and determining a target video bitrate of the to-be-transcoded video according to the bitrate feature information of the target video frames and bitrate requirement information of a target service platform, the target service platform being a service platform to which the to-be-transcoded video is to be played after being transcoded.

Techniques for video processing including video coding, video decoding, and video transcoding are described. One example method includes performing a conversion between a video comprising a video picture and a bitstream of the video, the video picture comprising one or more slices. The video picture refers to a picture parameter set, and the picture parameter set conforms to a format rule that specifies that the picture parameter set includes a column width list of N slice columns, where N is an integer. The (N-1) th slice column is present in the video picture, and the width of the (N-1) th slice column is equal to the (N-1) th entry in the explicitly included slice column width list plus a number of codec tree blocks.

The invention relates to the technical field of streaming media video playing, and provides a video playing method and system, equipment and a medium. And according to a preset transcoding standard, matching a video transcoding service with a specified configuration attribute from a plurality of video transcoding services with different configuration attributes to transcode the video stream so as to obtain a transcoded video stream for a client to play. According to the scheme of transcoding the video stream by matching the video transcoding service with the specified configuration attribute according to the transcoding standard, transcoding resources can be accurately and properly allocated, so that the cost pressure of transcoding the video stream is reduced.

The present disclosure relates to a cloud-based system designed to automate the packaging, validation, processing, and delivery of media content and its supporting items. The system processes video, audio, subtitles, artwork, and metadata according to predefined specifications, ensuring compliance with technical and qualitative requirements for various endpoints. The system performs validation, error correction, transcoding, file conversion, and packaging based on saved profiles or templates. By leveraging cloud-based workflows and optional human oversight, the system ensures efficient and accurate delivery of media content to any destination.