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Video frame and time code binding method, video file recording method and encoder

A technology of video frame and time code, which is applied in the field of video processing, can solve the problems that video frame and time code affect the program recording effect, and achieve the effects of improving program production efficiency, simplifying the processing process, and facilitating processing

Active Publication Date: 2021-03-02
NANJING MAGEWELL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, in order to solve the problem in the prior art that the effect of program recording is affected due to the lack of effective binding of video frames and time codes, the present invention provides a method for binding video frames and time codes and a corresponding video file recording method and Encoder, which binds and stores the video frame and its corresponding time code, which is convenient for later editing and processing of video files

Method used

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  • Video frame and time code binding method, video file recording method and encoder
  • Video frame and time code binding method, video file recording method and encoder
  • Video frame and time code binding method, video file recording method and encoder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Generally, the time error range between the video frame collected by the data information collection unit and the corresponding time code collected by the auxiliary information unit is within a certain range. The first time stamp of the frame is the center, and the frame interval between the frame and its adjacent frames is used as the interval length to determine the search interval, and the second time stamp located in the search interval is searched in the second time stamp queue. Such as Figure 4 shown in the video frame V 6 For example, this frame and its adjacent video frame V 7 The frame interval between is d 6 , then find the video frame V 6 Corresponding time code TC 6 , take the first timestamp TS corresponding to the frame 6 Centered at frame interval d 6 Determine the search interval for the interval length, then in the second timestamp queue TS' n Get in the search interval [TS 6 -1 / 2d 6 , TS 6 +1 / 2d 6 ] within the second timestamp TS' 6 , and ...

Embodiment 2

[0049] Such as Figure 5 As shown, according to the search rule in Embodiment 1, according to the video frame V 4 The corresponding first timestamp TS 4 as the center, the frame interval d 4 is the interval length, and the obtained search interval is [TS 4 -1 / 2d 4 , TS 4 +1 / 2d 4 ], can be in the second timestamp queue TS' n Find the corresponding second timestamp TS' in 4 , and then find the time code TC corresponding to the video frame 4 , the video frame V 4 with timecode TC 4 Bound storage; however for video frame V 5 , in its corresponding search interval [TS 5 -1 / 2d 5 , TS 5 +1 / 2d 5 ], there exists TS' 4 、TS' 5 Two timestamps, in this case you need to choose one of the two. In this embodiment, for this situation, the selection and the first timestamp TS 5 closest second timestamp TS' 5 , and then determine its corresponding time code TC 5 , the video frame V 5 with timecode TC 5 Bound storage.

[0050] In short, the search rule in this embodiment ...

Embodiment 3

[0053] Such as Figure 6 As shown, according to the search rule in Embodiment 1, according to the video frame V 4 The marked first timestamp TS 4 as the center, the frame interval d 4 is the interval length, and the obtained search interval is [TS 4 -1 / 2d 4 , TS 4 +1 / 2d 4 ], while in the second timestamp queue TS' n The second timestamp TS' cannot be found within the corresponding search interval in 4 , that is, the auxiliary information unit has not collected the time code TC corresponding to the video frame within the search interval 4 , this situation may be that the time code is missing during acquisition, or it may be that Figure 6 As shown, the delay is relatively large, falling into the video frame V 5 The corresponding search interval [TS 5 -1 / 2d 5 , TS 5 +1 / 2d 5 ], then in [TS 5 -1 / 2d 5 , TS 5+1 / 2d 5 ] memory exists in TS' 4 、TS' 5 Two second timestamps, according to the search rules in Example 2, may bind the second timestamp TS' 4 , which will l...

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Abstract

The invention discloses a video frame and time code binding method, a corresponding video file recording method and an encoder, and solves the problems that in the prior art, due to the fact that a video source sends video frames and time codes in two paths, the video frames and the time codes of the encoder connected with the video source are easily misplaced, and the like; the video frame and the time codes are bound and stored, so a video file formed by the encoder is consistent with a picture acquired by the field camera as much as possible, the processing difficulty of editing, editing and the like of video materials in the later period is reduced, and the processing efficiency and the program production effect are improved.

Description

technical field [0001] The invention relates to the technical field of video processing, in particular to a video frame and time code binding method, a corresponding video file recording method and an encoder. Background technique [0002] In order to enrich the picture and improve the viewability and entertainment of the program, multi-camera shooting is often used, and video cameras or digital cameras store the captured pictures to form program materials for later editing. In the post-editing of the program, the material from multiple cameras in the same scene needs to maintain the original relative time relationship on different video tracks. [0003] Such as figure 1 As shown, taking the camera as an example, during the program production process, the camera located at the recording site collects the pictures of the shooting site and sends them to the encoder. The encoder generates a processable video file after compression and encoding processing and sends it to the mo...

Claims

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Application Information

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IPC IPC(8): H04N5/91H04N5/92
CPCH04N5/91H04N5/9201
Inventor 李浩刘洋
Owner NANJING MAGEWELL ELECTRONICS CO LTD