Method for realizing time point alignment of video files recorded by multi-channel recording elements

A technology of video files and time points, applied in electrical components, components of color TVs, components of TV systems, etc., can solve problems such as difficult screen alignment, and achieve the effect of reducing work difficulty and improving speed and quality.

Inactive Publication Date: 2009-10-14
BEIJING ITSYNC TECH
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  • Abstract
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Problems solved by technology

In addition, when a hard disk recorder crashes and restarts for some reason, it is difficult to align the

Method used

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  • Method for realizing time point alignment of video files recorded by multi-channel recording elements
  • Method for realizing time point alignment of video files recorded by multi-channel recording elements

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the method for aligning video files recorded by multiple recording units in the present invention is applied to a studio recording system, and the recording system includes a camera, a recording unit, a synchronization generator, a time code generator, a control unit, and multiple cameras One recording unit is connected respectively, the synchronization generator is connected with each camera and the time code generator respectively, the time code generator is connected with the control unit, the time code generator is connected with multiple recording units, and the control unit is connected with each recording unit to an Ethernet switch that connects to servers, disk arrays, and multiple editing workstations for post-editing. The method comprises the steps of: the synchronous generator synchronizes the video line and field synchrono...

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Abstract

The invention discloses a method for realizing time point alignment of video files recorded by multi-channel recording elements. The method comprises the following steps: a synchronous generator synchronizes video line and field synchronizing signals from video cameras, and transmits generated black burst to a time code generator in order to take the black burst as a time code timing reference for the time code generator, and the time code generator generates a time code data flow synchronizing with the black burst; the time code generator simultaneously transmits the time code data flow to the recording elements; and each recording element starts recording and correspondingly embeds received time code data flow into each video frame of respective self-recorded video file after a control unit sends a record command to the recording elements. By the method, editors can easily find frames at the same time point during post editing and compositing; align, edit and compose contents recorded by a plurality of recording elements, thus improving post video production speed and quality, and reducing difficulty for editors.

Description

technical field [0001] The invention relates to a method for aligning time points of video files, in particular to a method for aligning time points of video files recorded by multi-channel recording units. Background technique [0002] At present, in the case of multi-channel hard disk recording, it is very difficult to ensure that the recording of all hard disk recorders realizes frame synchronization. Before multiple hard disk recorders start recording, a control computer sends a recording command via Ethernet, serial port or other methods, and a time difference will occur when the control computer sends out the recording command. Moreover, there will be a delay when the recording command arrives at the hard disk recorder until the hard disk recorder executes the recording command. This delay is affected by the performance and busyness of the recorder system, and the delay time is uncertain. It can be seen that it is impossible to start all hard disk recorders at the sam...

Claims

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Application Information

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IPC IPC(8): H04N5/262H04N5/76
Inventor 许红昆
Owner BEIJING ITSYNC TECH
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