6 results about "Video coding format" patented technology

Embodiments of the present disclosure provide a method, an apparatus, an electronic device, a computer-readable storage medium, a computer program product, and a computer program for video decoding. The method obtains playback address information of a video to be played, the playback address information carrying encoding format information of the video to be played; obtains the video to be played in accordance with the playback address information; and, in progress of obtaining the video to be played asynchronously, acquires a hardware decoder based on the encoding format information of the video to be played; and decodes the obtained video to be played with the hardware decoder. Embodiments of the present disclosure carry the encoding format information of the video to be played in the playback address information of the video, so that the asynchronous acquisition of the hardware decoder can be adopted in progress of the startup of video playback.

The invention provides a video coding method, electronic equipment, a chip system and a readable storage medium, the method is applied to the electronic equipment, and the method comprises the following steps: obtaining a current frame in response to a recording operation of a target video, the current frame comprising images of different visual angles; controlling an encoder to encode the current frame according to the difference between the current frame and a reference frame of the current frame in the firmware of the video processing unit to obtain a bit stream of the current frame; writing the bit stream of the current frame into the initial header file through a video processing module to obtain a target file of the current frame; according to a target file corresponding to each frame in the target video, a three-dimensional video in a multi-view efficient video coding format is obtained, the video processing module is a software module in the electronic equipment, and the video processing unit firmware and the encoder are hardware modules of the electronic equipment. Therefore, coding is carried out in a software-hardware combination mode, the power consumption of coding can be reduced, and the flexibility of coding is improved.

The application discloses a video decoding method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining a cumulative probability table and a count value of a video coding format from cumulative probability distribution information stored in a memory and storing the cumulative probability table and the count value into a random access memory, wherein the cumulative probability distribution information comprises a storage mode and the cumulative probability table and the count value arranged together according to the storage mode; decoding the coding format of a to-be-decoded region of the video according to the cumulative probability table in the random access memory, and adding one to the count value corresponding to the cumulative probability table; if a next syntax is different from a currently decoded syntax during the decoding process, writing back the cumulative probability table of the currently decoded syntax to the random access memory; and when the decoding of the coding format of the to-be-decoded region of the video is completed, writing the cumulative probability table written back to the random access memory into the memory, and clearing the count value corresponding to all the cumulative probability tables to update the cumulative probability distribution information.

This application discloses a display device, a media asset playback apparatus, and a media asset playback method, comprising: acquiring a media display description document for a media asset file; acquiring a first description tag and a first channel tag based on the media display description document, wherein the first description tag is used to characterize that the media asset file includes extended layer data, and the extended layer data is used to characterize that the video encoding format can decode the media asset file to obtain ultra-high definition resolution; inserting the first description tag into the first channel tag to convert the first description tag into a second channel tag; establishing a first media asset track based on the first channel tag, and establishing a second media asset track based on the second channel tag; and synchronously decoding the first media asset track and the second media asset track to play the media asset file. This application enables the display device to support the operation of SHVC format media asset files and can simultaneously demultiplex the base layer data and extended layer data, so that the display device can play ultra-high definition resolution media asset files, thereby improving the user experience.

The invention discloses a label of a media file, a system, a method and a device for processing image data. An example method includes performing a conversion between a visual media file and a bitstream. In accordance with the media file format, the visual media file includes image items, each image item including one or more picture sequences. In accordance with the video codec format, the bitstream comprises access units, each access unit comprising one or more pictures, each picture belonging to a layer. The video codec format defines a plurality of levels. The media file format specifies that the bitstream is represented in a file having a particular tag, and one or more levels for representing the video in the bitstream are independent of the particular tag.

Systems and methods for providing provenance authentication of content. C2PA and other open standards for provenance metadata and watermarking can be used in combination to enable social media platforms to easily identify and retrieve from video servers authentic instances of broadcast video content that is included in user-generated videos. Gaps in these standards that could impede interoperability are addressed by providing protocols that for discovery, launch, and synchronization of network services, such as C2PA, via watermarking. For example, a method is provided for announcement of C2PA services in ATSC watermark protocols. Also, guidelines are disclosed for the interpretation and use of the C2PA asset reference assertion field and expectations around video encoding formats, video server features, and access controls that are necessary for its effective use in promoting availability of authentic video.