Cross-device method for synchronously playing audio and video data, playing devices and system thereof

A playback device and audio playback technology, applied in the field of data processing, can solve the problems of inability to play, synchronize, and play complex audio and video data with audio data packets and video images.

Active Publication Date: 2017-05-31
BEIJING QIYI CENTURY SCI & TECH CO LTD
View PDF5 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing first method for synchronous playback of audio and video data, after the first playback device completes the synchronized audio data packets and video images, when the distance between the first playback device and the second playback device is large, due to The transmission time used by the first playback device to send the audio data packet to the second playback device will be longer, and the existing first method of synchronous playback of audio and video data cannot synchronize the audio data packets and video images that have been played synchronously in time. Play on the second playback device; in the exist

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cross-device method for synchronously playing audio and video data, playing devices and system thereof
  • Cross-device method for synchronously playing audio and video data, playing devices and system thereof
  • Cross-device method for synchronously playing audio and video data, playing devices and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] In various embodiments of the invention, see figure 1 , figure 1 It is a flow chart of the first implementation method for synchronous playback of audio and video data in the embodiment of the present invention. Such as figure 1 As shown, the method for synchronously playing audio and video data across devices may include the following steps:

[0056] Step 101, the first playback device obtains the audio data packet played by the current system, and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The embodiment of the invention provides a cross-device method for synchronously playing audio and video data, playing devices and a system thereof. The method comprises the following steps: obtaining an audio data packet played by a current system via a first playing device and recording first system time of the first playing device when obtaining the audio data packet; determining audio playing time of the audio data packet via the first playing device and sending the audio data packet and the audio playing time to a second playing device; playing the audio data packet via the second playing device when an absolute value of time difference between the current system time of the second playing device and the audio playing time is less than or equal to a preset threshold; and playing video images corresponding to the audio data packet via the first playing device according to video playing time, and synchronously playing the audio and video data of different devices, wherein the video playing time is the sum of the first system time and the predetermined playing delay time; the audio playing time is the sum of the first system time, the playing delay time, and the system time difference between the first playing device and the second playing device.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method for synchronously playing audio and video data across devices, a playing device and a system. Background technique [0002] With the rapid development of information technology, especially the popularization of network technology, communication technology and multimedia technology, it is becoming more and more popular for users to watch videos on large-screen devices. Therefore, corresponding multimedia services, such as: video conferencing, distance learning and Internet live broadcast Business, etc., showing a trend of exponential growth. In many occasions, a user wishes to play video data and audio data separately through different playback devices, for example, a TV plays video data, and a mobile terminal plays audio data. In the existing method for synchronous playback of audio and video data, the following two methods are usually adopted to realize synchronous playb...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N21/43
Inventor 费伟
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap