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Online-video real-time speed change play method and system thereof

A technology of a playback system and a playback method, applied in the field of network multimedia, can solve the problems of stagnation of picture and sound, waiting for several seconds to more than ten seconds, and difficulty in synchronizing audio and video, and achieve the effect of synchronous playback.

Active Publication Date: 2013-12-25
TENCENT TECH (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing online video playback system, when the user changes the playback speed, there will be a response delay of several seconds, which is manifested as stagnation of the picture or sound. For random dragging in the variable speed playback state, the audio and video are also difficult to synchronize and need to wait a few seconds to ten seconds

Method used

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  • Online-video real-time speed change play method and system thereof
  • Online-video real-time speed change play method and system thereof

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Embodiment Construction

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation methods, methods, The steps, structure, features and effects thereof are described in detail as follows.

[0022] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of specific embodiments, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically. However, the accompanying drawings are only for reference and description, and are not used to explain the present invention. limit.

[0023] figure 1 It is a schematic structural diagram of an online video real-time variable-speed playback system disclosed by an embodiment of the present invention....

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Abstract

The invention provides an online-video real-time speed change play method. The method comprises the following steps that S1, a multimedia source file selected by a user is received; S2, the multimedia source file is read; S3, audio and video flow separation is performed on the multimedia source file; S4, decoding is performed on a video stream and an audio stream respectively; S5, speed change processing is performed on the audio stream; S6, an audio clock of the audio stream after the speed change processing is assigned to an video clock of the video stream after the decoding and the video clock after assignment is read; S7, the audio stream and the video stream are output. The invention also provides an online-video real-time speed change play system. By using the online-video real-time speed change play method and the system of the invention, purposes of speed change display and synchronization of the audio and video can be achieved.

Description

technical field [0001] The invention relates to network multimedia technology, in particular to a method and system for playing online video at a real-time variable speed. Background technique [0002] With the development of network technology and multimedia technology, network multimedia is gradually becoming an indispensable part of people's life, study and work. More and more users choose to watch movies online, communicate online via video, and take advanced courses online. [0003] During video playback, more and more users hope to be able to adjust the video playback speed as required. For example, in order to find the desired video clip, the user hopes to play it quickly according to the needs of the video content; when learning a video to imitate spoken language actions, the user hopes to play it frame by frame at a variable speed to clearly understand the details of the action; When the actors are dancing, the user needs to play at variable speeds to correct inco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/433H04N5/783H04N9/802G11B20/10
CPCH04N21/4302H04N21/433H04N21/4341H04N21/8547H04N21/43072H04N5/04
Inventor 赖晶
Owner TENCENT TECH (SHENZHEN) CO LTD
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