Method and device for adjusting playback progress of video file

Patent metadata

Field	Value
Publication number	US-9799375-B2
Application number	US-201314890186-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Jul 15, 2013
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Provided are a method and device for adjusting playback progress of a video file. The method includes: receiving text information to be searched; searching, in a caption file of the video file, for caption content matching the text information, wherein the caption file is acquired from the video file or generated according to the video file; and determining playback time point corresponding to the caption content according to the found caption content, and adjusting the playback progress of the video file according to the playback time point. According to the technical solution provided in the disclosure, accurate positioning of a clip which a user expects to replay is achieved, and the operation is simple and convenient.

First claim

What is claimed is:

1. A method for adjusting playback progress of a video file, comprising:
receiving text information to be searched;
searching, in a caption file of the video file, for caption content matching the text information, wherein the caption file is acquired from the video file or generated according to the video file; and
determining playback time point corresponding to the caption content according to the found caption content, and adjusting the playback progress of the video file according to the playback time point;
wherein before searching for the caption content matching the text information, the method further comprises: judging whether a language used by the caption file is consistent with a language used by the text information; and when the language used by the caption file is not consistent with the language used by the text information, regenerating the caption file according to the language used by the text information.

2. The method according to claim 1 , wherein before searching for the caption content matching the text information, the method further comprises:
judging whether the video file contains the caption file; and
when the caption file does not exist in the video file, generating the caption file according to audio data in the video file.

3. The method according to claim 2 , wherein generating the caption file according to the audio data in the video file comprises:
performing decoding processing on the audio data in the video file; and
converting the decoded audio data into the caption file.

4. The method according to claim 3 , wherein receiving the text information comprises one of the following:
receiving input text information; and
receiving audio data, and converting the audio data into the text information.

5. The method according to claim 2 , wherein receiving the text information comprises one of the following:
receiving input text information; and
receiving audio data, and converting the audio data into the text information.

6. The method according to claim 1 , wherein determining the playback time point corresponding to the caption content according to the found caption content, and adjusting the playback progress according to the playback time point comprises:
determining a caption sequence number of the caption content according to the found caption content;
acquiring a playback time period corresponding to the found caption content according to the caption sequence number, and determining initial playback point corresponding to the found caption content within the playback time period; and
adjusting the playback progress according to the playback time point.

7. The method according to claim 6 , wherein receiving the text information comprises one of the following:
receiving input text information; and
receiving audio data, and converting the audio data into the text information.

8. The method according to claim 1 , wherein receiving the text information comprises one of the following:
receiving input text information; and
receiving audio data, and converting the audio data into the text information.

9. A device for adjusting playback progress of a video file, comprising:
a receiving component, configured to receive text information to be searched;
a searching component, configured to search, in a caption file of the video file, for caption content matching the text information, wherein the caption file is acquired from the video file or generated according to the video file; and
an adjusting component, configured to determine playback time point corresponding to the caption content according to the found caption content, and adjust the playback progress of the video file according to the playback time point;
wherein the device further comprises: a second judging component, configured to judge whether a language used by the caption file is consistent with the language used by the text information; and a second processing component, configured to regenerate the caption file according to the language used by the text information, when the language used by the caption file is not consistent with the language used by the text information.

10. The device according to claim 9 , wherein the device further comprises:
a first judging component, configured to judge whether the video file contains the caption file; and
a first processing component, configured to generate the caption file according to audio data in the video file when the caption file does not exist in the video file.

11. The device according to claim 10 , wherein the first processing component comprises:
a decoding element, configured to perform decoding processing on the audio data in the video file; and
a converting element, configured to convert the decoded audio data into the caption file.

12. The device according to claim 11 , wherein the receiving component comprises:
a first receiving element, configured to receive input text information; and
a second receiving component, configured to receive audio data, and convert the audio data into the text information.

13. The device according to claim 10 , wherein the receiving component comprises:
a first receiving element, configured to receive input text information; and
a second receiving component, configured to receive audio data, and convert the audio data into the text information.

14. The device according to claim 9 , wherein the adjusting component comprises:
a first determining element, configured to determine a caption sequence number of the caption content according to the found caption content;
a second determining element, configured to acquire a playback time period corresponding to the found caption content according to the caption sequence number, and determine initial playback time point corresponding to the found caption content within the playback time period; and
an adjusting element, configured to adjust the playback progress according to the playback time point.

15. The device according to claim 14 , wherein the receiving component comprises:
a first receiving element, configured to receive input text information; and
a second receiving component, configured to receive audio data, and convert the audio data into the text information.

16. The device according to claim 9 , wherein the receiving component comprises:
a first receiving element, configured to receive input text information; and
a second receiving component, configured to receive audio data, and convert the audio data into the text information.

Assignees

• Zte Corp
• Xian Zhongxing New Software Co Ltd

Inventors

• Zhou Peng

Classifications

• H04N21/4394 Primary

  involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams (arrangements characterised by components specially adapted for monitoring, identification or recognition of audio in broadcast systems H04H60/58) · CPC title

• G10L15/26

  Speech to text systems (G10L15/08 takes precedence) · CPC title

• G06F17/30823

  Physics · mapped topic

• H04N21/4884

  for displaying subtitles · CPC title

• H04N21/47217

  for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks (specific graphical features in visual interfaces H04N21/4312) · CPC title