Huawei Technologies Co., Limited

Future Wei Technologies, Inc.

Changquan Ai

Xin Liu

Shaobo Zhang

Peiyun Di

Yangpo Xu

Xin Ru Wang

Alexander Giladi

Haitao Yang

Bing Chen

Yadong Lu

Weie Zhang

A video frame decoding method and apparatus in order to implement efficient and fast video decoding. The method includes acquiring a target time point of a video, obtaining a frame number of a corresponding random access frame according to the target time point, obtaining a frame number of a frame that can be independently decoded, where the dependency set includes at least one dependency, and the dependency represents a correspondence between a frame number of a random access frame and a frame number of a frame that can be independently decoded, and obtaining, according to the frame number of the frame that can be independently decoded, video data of the frame that can be independently decoded, and decoding the random access frame.

Video frame decoding method and apparatus

A method for adaptive streaming of a media content, wherein the method comprises receiving a media presentation description that provides presentation information for the media content, determining a plurality of representations from the media presentation description that comprise segments that are provided with bitrate and quality information, selecting a media segment that meets a desired quality level to download from one of the representations, updating a buffered media time for downloading the media segment, and determining when to switch to another representation by comparing the buffered media time to a switching threshold value.

Signaling and processing content with variable bitrates for adaptive streaming

An image presentation method, where the method includes obtaining identification information of a first object when a switching instruction for switching the first object to a second object is received, where one of the first object or the second object is a first 360-degree panorama, the other is a first strip panorama, the first strip panorama includes multiple front sub-images used to display a first region, an ifront sub-image in the multiple front sub-images corresponds to a front image in a j360-degree panorama in multiple 360-degree panoramas and displays an isub-region in the first region, and the first 360-degree panorama is one of the multiple 360-degree panoramas, obtaining, according to the identification information of the first object, the second object corresponding to the identification information of the first object, and presenting the second object.

Image presentation method, terminal device, and server

Embodiments of the present invention provide media file receiving and media file sending methods, apparatuses, and systems. A media file receiving method includes: obtaining, by a client, an MPD fragment address of a first MPD fragment from a media presentation description MPD fragment index file according to a start-to-play time point requested by a user; sending, by the client, a first MPD fragment obtaining request including the MPD fragment address of the first MPD fragment to a server; receiving, by the client, the first MPD fragment fed back by the server, and sending a media segment obtaining request to the server according to media description information in the first MPD fragment; and receiving, by the client, a media segment fed back by the server. With the media receiving method according to the embodiments of the present invention, an objective of rapidly starting playing a media file can be achieved.

Media file receiving and media file sending methods, apparatuses, and systems

Embodiments of the present invention provide a method for retransmission based on forward error correction. The method includes: when received source data packets loss occurs, judging whether all of the lost source data payloads can be decoded by using the received source data payloads and check data; if all of the lost source data payloads cannot be decoded, determining needed source data symbols for decoding all of the lost source data payloads by using the received source data payloads and the check data; and requesting for retransmitting the needed source data symbols.

Growing community of inventors

Shenzhen, China

Changquan Ai