Shanghai Bilibili Technology Co., Ltd.

Hanchao Zheng

Hui Chen

Zhiqiang Wu

Honglei Cui

Hao Wang

Zhaoxin Tan

Jianqiang Ding

Biao Hu

Shunli Liang

Sheng Wang

Wenjie Fan

The present invention provides a method, device and computer-readable medium of a seamless and dynamic switch between resolutions based on hardware decoding and belongs to a field of the internet technology. According to the method, device and computer-readable medium of the present invention, during a DASH video playback, when it needs to switch to another resolution, the original decoder continues to decode the video stream in the original encoded format that already stores in a buffer, while the video stream in the original encoded format is decoded, a second decoder corresponding to a target encoded format is initialized based on a video stream in the target encoded format received by the original decoder, and the video stream of the target encoded format is decoded by the second decoder, so as to realize the seamless switch between resolutions, avoid a jam in the process of playing the video, and improve the user experience.

Seamless switching method, device and storage medium of hardware decoding dynamic resolution

This application provides techniques for establishing a P2P connection. The techniques comprise communicating with at least two auxiliary nodes to obtain answer messages returned by the at least two auxiliary nodes; determining, based on the answer messages, at least one public network address corresponding to an internal network address of a first client device; registering, with a cloud server, the at least one public network address corresponding to the internal network address of the first client device, and monitoring the at least one public network address corresponding to the internal network address of the first client device; and establishing a P2P connection to a second client device when detecting, in a preset duration, that the second client device returns a response data packet to a target public network address.

Method, client, and system for establishing P2P connection

This application provides techniques comprising S: establishing a queue for accommodating m file descriptors for creating nfirst access request data packets; S: creating an ifile descriptor in the queue, sending an ifirst access request data packet by using the ifile descriptor, and monitoring a source port recorded by the ifile descriptor; S: at every first preset time interval t, enabling i to automatically increase by 1, continuing to perform operation S, and setting preset monitoring time T for each source port, where T=t*m; and S: ending monitoring of an (i−m)source port and destroying a corresponding file descriptor while creating an ifile descriptor in the queue when m*j<i≤m*(j+1), and stopping monitoring of other source ports in response to detecting that a first port receives a response data packet, where the first port is any source port in a monitored state.

Data sending method and apparatus, and method and system for establishing P2P connection

The present invention provides a method, device and computer-readable medium of a seamless switch between resolutions based on software and hardware decoding and belongs to a field of the Internet technology. The method, device and computer-readable medium of the present invention comprise, during playing a DASH video, initializing a software decoder according to a video stream in a target encoded format received by an original decoder when it needs to switch to another resolution, at the same time the original decoder continuing to decode the video stream in an original encoded format existing in a buffer, decoding the video stream in the target encoded format using the software decoder after the video stream in the original encoded format is decoded, at the same time initializing a second hardware decoder corresponding to the target encoded format, switching to the second hardware decoder and stopping software decoding when a decoding progress of the second hardware decoder catches up with a decoding progress of the software decoder, so as to realize the seamless switch between the resolutions, avoid sticking in the process of playing the video, and improve user experience.

Seamless switching method, device and storage medium of software and hardware decoding resolution

A method includes: sending, upon receipt of an audio-only playing instruction in a process of synchronously playing audio and video of streaming media content using DASH, a request of obtaining audio data files of the streaming media content to a server, wherein video data files formed according to video content of the streaming media content and the audio data files formed according to audio content of the streaming media content are stored in the server; receiving the audio data files of the streaming media content from the server, and parsing out the audio content according to the audio data files; performing audio-only playing for the streaming media content according to the audio content.

Switch of audio and video

A method includes: obtaining a video data file and an audio data file of streaming media content to be played from a server, when the streaming media content is played using DASH; obtaining a video bitrate from the video data file, and obtaining an audio bitrate from the audio data file; and determining a capacity of a video buffer area and a capacity of an audio buffer area according to the video bitrate and the audio bitrate.

Balance of initial frame and limitation of traffic

A method of measuring a network speed, a computing device, and a computer-program product are provided. The method includes: obtaining a downloading duration and a downloading byte count of each of N consecutive video segments upon receiving a network speed measurement command during downloading video content, wherein the video content comprises multiple video segments; calculating out a total downloading duration and a total downloading byte count of the N video segments according to the downloading duration and the downloading byte count of each of the N video segments; and calculating out a current network speed according to the total downloading duration and the total downloading byte count.

Method for measuring network speed, computing device, and computer-program product

A method of playing audio and video is provided. The method includes: obtaining a streaming media content to be encapsulated, and parsing the streaming media content to obtain audio parameter information and/or video parameter information; forming a Media Presentation Description (MPD) file in JavaScript Object Notation (JSON) format according to the audio parameter information and/or the video parameter information, wherein the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, each of the video segment and the audio segment includes multiple arrays, and each array includes the audio parameter information or the video parameter information; sending the MPD file in JSON format to a client.

Method of playing audio and video, computing device, and computer program product

A method of switching resolution is provided. The method includes: in playing audio and/or video using DASH, acquiring a media presentation description (MPD) file and obtaining resolution information through parsing the MPD file; during the playing of the audio and/or video, periodically determining a currently secure downloading speed according to a preset time interval and determining whether a resolution switching for the audio and/or video currently being played is required according to the secure downloading speed and the resolution information; and in accordance with a determination that the resolution switching is required, determining a switching time point according to an elapsed duration of a currently playing segment and a preset secure buffering duration and performing resolution switching at the switching time point.

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Shanghai, China

Hanchao Zheng