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Method and device for synchronously playing stitched video in indirectly acquired video application occasion

A technology for acquiring video and video synchronization, applied in the field of video processing, can solve problems such as reducing real-time requirements, and achieve the effect of reducing real-time requirements, wide applicability, and improving video synchronization playback effect.

Active Publication Date: 2013-04-03
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, through asynchronous caching, it reduces the real-time requirements, effectively solves the problem of video splicing and synchronization, greatly improves the effect of video synchronous playback, and has the characteristics of wide applicability

Method used

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  • Method and device for synchronously playing stitched video in indirectly acquired video application occasion
  • Method and device for synchronously playing stitched video in indirectly acquired video application occasion
  • Method and device for synchronously playing stitched video in indirectly acquired video application occasion

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no. 1 example

[0068] see figure 1 In the embodiment of the present invention, the first embodiment of the method for synchronously playing spliced ​​video in an indirect video application occasion includes:

[0069] 101. The video source end replaces the fixed byte at the fixed position of each frame of video with the preset frame number data according to the preset rules;

[0070] The above frame number data includes frame number and additional information;

[0071] The rules and frame number data can be preset in the video source. The rule can be: use the frame number data to replace the fixed bytes in the fixed position of each frame of video, which can be the image data of 4 bytes in the upper left corner, and the frame number data in it In the case of a large number of video frames, the frame number can be included in the second byte or the third byte. The above frame number is not provided with the video, but compiled by the video source. , which can be specifically: the frame numbe...

no. 3 example

[0115] The second embodiment of the method for synchronously playing spliced ​​video in the application of indirect video acquisition of the present invention has been introduced above in detail, especially the process of detecting frames. The third embodiment of the method for synchronous video playback of spliced ​​video in the application of indirect video acquisition in the present invention is as follows for a description, see image 3 In the embodiment of the present invention, the third embodiment of the method for synchronously playing spliced ​​video in an application where video is not directly acquired includes:

[0116] 301. The number of main equipment detection equipment;

[0117] The main equipment can detect the quantity of equipment, so as to be used for determining the number of synchronous signals in step 302, above-mentioned equipment can comprise PC video source end, FPGA synchronization board, display unit, RS232 serial port, and DVI video interface; Abov...

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Abstract

An embodiment of the invention discloses a method and a device for synchronously playing stitched video in indirectly acquired video application occasion. In the indirectly acquired video application occasion, data are implanted into the video to acquire the data and recover the video. Meanwhile, via asynchronous cache, instantaneity requirement is lowered, the problem about synchronization in video stitching is effectively solved, synchronized playing effect of the video is greatly improved, and the method and the device have the advantages of wide applicability.

Description

technical field [0001] Embodiments of the present invention relate to the field of video processing, and in particular to a method and device for synchronously playing spliced ​​video in an application where video is not directly acquired. Background technique [0002] In applications where video is directly obtained, such as directly obtaining video data through a PCI / PCI-E card, or directly obtaining video data through Ethernet or directly obtaining video data through other data interfaces, it is easy for users to Additional information is passed to the acquirer. [0003] However, in some cases, the user does not directly obtain video data, but obtains video data through uncontrollable middleware, such as obtaining PC video data through a graphics card. The PC video source is controllable, but the graphics card is not. controlled. In the application of obtaining video data through the graphics card, because the output of the graphics card is only pure RGB image data and ...

Claims

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Application Information

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IPC IPC(8): H04N21/236H04N21/434
Inventor 梁博文彭昌辉
Owner GUANGDONG VTRON TECH CO LTD
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