Video playing method, device and storage medium

Patent metadata

Field	Value
Publication number	US-11069319-B2
Application number	US-201916639157-A
Country	US
Kind code	B2
Filing date	Jun 18, 2019
Priority date	Jun 29, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present disclosure provides a video playing method, device and storage medium. The method includes: obtaining a target video which comprises a plurality of video frames arranged in sequence, and sending sequentially the plurality of video frames to a display module, by a graphics processing unit; for each video frame, receiving and playing the video frame for a target duration from a start moment of receiving the video frame, by the display module; wherein target durations for which the display module plays at least two video frames in the target video are not equal. The technical solutions provided in the embodiments of the present disclosure can improve the refresh rate of a video.

First claim

What is claimed is:

1. A video playing method, comprising:
obtaining a target video by a graphics processing unit, the target video comprising a plurality of video frames arranged in sequence;
sending sequentially the plurality of video frames to a display module by the graphics processing unit; and
for each of the video frames, receiving the video frame and playing the video frame for a target duration from a start moment of receiving the video frame, by the display module;
wherein target durations for which the display module plays at least two video frames in the target video are not equal; and
wherein for each of the video frames, the target duration is equal to a sum of a fixed duration and the duration for which the graphics processing unit completely sends the video frame to the display module, the fixed duration being equal for the plurality of video frames.

2. The method according to claim 1 , wherein for each of the video frames, the target duration is positively correlated to a duration for which the graphics processing unit completely sends the video frame to the display module.

3. The method according to claim 1 , wherein sending sequentially the plurality of video frames to the display module by the graphics processing unit comprises:
for each of the video frames, sending the video frame to the display module by the graphics processing unit, and sending a next video frame following the video frame to the display module by the graphics processing unit after the target duration has elapsed from a start moment of sending the video frame.

4. The method according to claim 3 , wherein, for each of the video frames, sending the video frame to the display module by the graphics processing unit, and sending the next video frame following the video frame to the display module by the graphics processing unit after the target duration has elapsed from the start moment of sending the video frame comprises:
for each of the video frames, sending the video frame to the display module by the graphics processing unit, and sending the next video frame following the video frame to the display module by the graphics processing unit when a fixed duration has elapsed from a moment when the video frame is completely sent to the display module.

5. The method according to claim 3 , further comprising:
for each of the video frames, after the target duration has elapsed from the start moment of sending the video frame, generating a synchronization signal and sending the synchronization signal to the display module by the graphics processing unit, the synchronization signal being configured to instruct the display module to receive the next video frame following the video frame and to play the next video frame for the target duration from a start moment of receiving the next video frame.

6. The method according to claim 5 , further comprising:
for each of the video frames, receiving, by the display module, the next video frame after receiving the synchronization signal, and playing, by the display module, the next video frame for the target duration from a moment of receiving the synchronization signal.

7. The method according to claim 1 , wherein when the display module is a liquid crystal display module, the fixed duration is determined according to a duration of gesture transformation of a liquid crystal.

8. The method according to claim 1 , wherein when the display module is a light emitting diode display module, the fixed duration is determined according to a duration of grayscale conversion of a light emitting diode.

9. The method according to claim 1 , wherein
prior to sending sequentially the plurality of video frames to the display module by the graphics processing unit, the method further comprises: for each of the video frames, rendering the video frame by the graphics processing unit; and
sending sequentially the plurality of video frames to the display module by the graphics processing unit comprises: sending sequentially the plurality of rendered video frames to the display module by the graphics processing unit.

10. A video playing device, comprising a graphics processing unit and a display module, wherein
the graphics processing unit is configured to obtain a target video which comprises a plurality of video frames arranged in sequence, and send sequentially the plurality of video frames to the display module; and
the display module is configured to, for each of the video frames, receive the video frame and play the video frame for a target duration from a start moment of receiving the video frame;
wherein target durations for which the display module plays at least two video frames in the target video are not equal; and
wherein for each of the video frames, the target duration is equal to a sum of a fixed duration and the duration for which the graphics processing unit completely sends the video frame to the display module, and the fixed duration is equal for the plurality of video frames.

11. The device according to claim 10 , wherein for each of the video frames, the target duration is positively correlated to a duration for which the graphics processing unit completely sends the video frame to the display module.

12. The device according to claim 10 , wherein the graphics processing unit is configured to, for each of the video frames, send the video frame to the display module, and send a next video frame following the video frame to the display module after the target duration has elapsed from a start moment of sending the video frame.

13. The device according to claim 12 , wherein the graphics processing unit is configured to, for each of the video frames, send the video frame to the display module, and send the next video frame following the video frame to the display module when a fixed duration has elapsed from a moment when the video frame is completely sent to the display module.

14. The device according to claim 12 , wherein the graphics processing unit is further configured to, for each of the video frames, after the target duration has elapsed from the start moment of sending the video frame, generate a synchronization signal and send the synchronization signal to the display module, the synchronization signal being configured to instruct the display module to receive the next video frame following the video frame and to play the next video frame for the target duration from a start moment of receiving the next video frame.

15. The device according to claim 14 , wherein the display module is further configured to, for each of the video frames, receive the next video frame after receiving the synchronization signal, and play the next video frame for the target duration from a start moment of receiving the synchronization signal.

16. The device according to claim 10 , wherein when the display module is a liquid crystal display module, the fixed duration is determined according to a duration of the gesture transformation of a liquid crystal, and when the display module is a light emitting diode display module, the fixed duration is determined according to a duration of grayscale conversion of a light emitting diode.

17. The device according to claim 10 , wherein
the graphics processing unit is further configured to, for each of the video frames, render the video frame, and sequentially send the plurality of rendered video frames to the display module.

18. A non-transitory computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and the computer program, when executed, performs a vi

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Meng Zhaohui
• Sun Wei
• Han Wenchao
• Cong Lin

Classifications

• G09G2320/0247

  Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes · CPC title

• H04N21/44012

  involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs · CPC title

• G09G5/001 Primary

  Arbitration of resources in a display system, e.g. control of access to frame buffer by video controller and/or main processor · CPC title

• G09G5/363 Primary

  Graphics controllers · CPC title

• G09G5/006

  Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04) · CPC title