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A method and device for fast-forwarding or rewinding video streams

A video streaming and video technology, which is applied in the field of fast forwarding or rewinding video streams, can solve problems such as unsmooth playback, and achieve the effect of avoiding unsmoothness and improving user experience

Active Publication Date: 2020-01-17
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for fast-forwarding or rewinding video streams, which is used to solve the problem of unsmooth playback when fast-forwarding or rewinding in the prior art, so as to improve user experience

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  • A method and device for fast-forwarding or rewinding video streams
  • A method and device for fast-forwarding or rewinding video streams
  • A method and device for fast-forwarding or rewinding video streams

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Embodiment Construction

[0025] 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.

[0026] The invention is applicable to numerous general purpose or special purpose computing device environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor device, distributed computing environment including any of the above devices or devices, etc.

[0027] The invention may be described in the general context of computer-executable instructions, such as program modules, b...

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Abstract

Provided are a method and device for realizing the fast-forward or fast-backward of a video stream. The method comprises: receiving a fast-forward or fast-backward request triggered by a user, and positioning a timestamp of a fast-forward or fast-backward requested position; acquiring a video meta data stream corresponding to a fast-forward or fast-backward requested section according to a timestamp of a currently played position and the timestamp of the fast-forward or fast-backward requested position; selecting a video frame to be played from the video meta data stream according to a playing ratio, and playing the video frame to be played. Neither remaining video frames in a current sequence group would be neglected, nor would influence arise from an I frame interface; consequently, the problem of lack of smoothness can be prevented, and the user experience can be improved.

Description

technical field [0001] The invention relates to the technical field of multimedia processing, in particular to a method and device for fast forwarding or rewinding video streams. Background technique [0002] When the user is watching a video, he can quickly locate the video playback position he is interested in through the fast forward or rewind operation; in response to the fast forward or rewind operation triggered by the user, the playback system displays the corresponding fast forward or rewind for the user on the playback interface Rewinding the picture, whether the picture is smooth during the fast forward or rewind process directly affects the user's video viewing experience. [0003] In the prior art, most playback systems use the following methods to fast forward or rewind the video stream. In one method, the playback system mainly obtains a synchronizable frame (I frame) adjacent to the fast-forward or fast-rewind request point, starts decoding the remaining vide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/472H04N21/2387H04N21/8547
CPCH04N21/2387H04N21/47217H04N21/8547
Inventor 黄敦笔
Owner ALIBABA GRP HLDG LTD