CN112804590A

CN112804590A - Video editing system based on UE4

Info

Publication number: CN112804590A
Application number: CN202011626819.0A
Authority: CN
Inventors: 李振海
Original assignee: Shanghai Shenke Visual Art Design Co ltd
Current assignee: Shanghai Shenke Visual Art Design Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-14
Anticipated expiration: 2040-12-31
Also published as: CN112804590B

Abstract

The invention relates to the field of computer image data processing and video editing, in particular to a video editing system based on UE 4. The video editing system based on the UE4 comprises a video file acquisition and import module, a video picture rendering module, a video clip editing module and a system parameter setting module. The video editing system based on the UE4 provided by the invention can identify the depth of field information of the video, select a proper illumination effect according to different scenes, and has rich illumination types, so that the rendered video is more real, and the picture is more exquisite. And moreover, the color saturation of the video picture is stronger by modifying the shader parameters in the system, so that the video design and editing can be more conveniently carried out by people. Meanwhile, multiple functions of adding synthetic tracks among tracks, adding, deleting, emptying tracks and the like can be realized, the captured audio quality is high, and meanwhile, the video editing function is integrated into a whole, so that the audio and video synthesis is more convenient.

Description

Video editing system based on UE4

Technical Field

The invention relates to the field of computer image data processing and video editing, in particular to a video editing system based on UE 4.

Background

With the rapid development of the computer industry and the continuous update of video editing software, people have higher and higher requirements on the picture effect and the editing function of video editing. In the aspect of video rendering, the existing video editing technology is generally suitable for simple live video processing, cannot adapt to large scenes in animation or games, and has the conditions of large production and more special effects. In particular, in the process of processing the scene, the rendering mode is too single, the color saturation is low, and the color partition is few. In addition, in the video editing process of the traditional video editing software such as Max, Maya and the like, because the software is not open, the software cannot pertinently perform custom editing on the animation video content, and the application range is limited. Therefore, in the field of video editing at the present stage, a high-quality video editing system with better rendering effect and more real video pictures is urgently needed to be provided.

Disclosure of Invention

In order to solve some problems in the prior art, the present invention provides a UE 4-based video editing system, including:

the video and audio file editing system comprises a video and audio file acquisition and import module, a video picture rendering module, a clipping module and a system parameter setting module.

As a preferred technical solution of the present invention, the video file collection and import module transmits the video file collection and import file to the video picture rendering module or the video clip editing module for further editing by acquiring local or network cloud resources, and the video file includes one of audio, video, picture, and picture.

As a preferred technical solution of the present invention, the video image rendering module includes a depth-of-field adjusting module, a light source allocating module, and a filter rendering module.

As a preferred technical solution of the present invention, the depth-of-field adjusting module transmits information to the light source allocating module by distinguishing transparent and opaque objects in the picture, and sets a reasonable illumination effect according to different objects.

As a preferred technical solution of the present invention, the light source distribution module includes a directional light source, a point light source, a background light source, a rectangular light source, and sky illumination.

As a preferred technical solution of the present invention, the filter rendering module includes a pixel size setting unit and a global shader unit, and the image saturation is modified by setting parameters of the pixel size setting unit and the global shader unit.

As a preferable technical scheme of the invention, the clipping module comprises a time axis alignment module, an audio track capturing module and an audio and video clip clipping module in the audio and video file.

As a preferable technical scheme of the invention, the audio track grabbing module comprises A/B track display, track adding and synthesizing, track adding, track deleting, track emptying and track renaming.

As a preferred technical solution of the present invention, the clipping module includes normal, add, subtract, positive film overlap, and divide merge modes.

As a preferred technical solution of the present invention, the system parameter setting module includes video quality parameter setting and video window parameter setting.

Compared with the prior art, the invention has the following beneficial effects:

(1) the video picture rendering module can identify the depth of field information of the video, select proper illumination effect according to different scenes, and has rich illumination types, so that the rendered video is more real, and the picture is more exquisite.

(2) The video picture rendering module can also make the color saturation of the video picture stronger by modifying the shader parameters in the system, thereby being more convenient for people to design and edit the video.

(3) The editing module can realize multiple functions of adding synthetic tracks among tracks, adding, deleting, clearing tracks and the like, has high captured audio quality, and is integrated with the video editing function, so that the audio and video synthesis is more convenient.

Drawings

FIG. 1 is a schematic flow chart of a UE 4-based video editing system according to the present invention;

FIG. 2 is a schematic diagram of a video image rendering module according to the present invention;

FIG. 3 is a diagram illustrating a clipping module according to the present invention.

Detailed Description

The invention provides a video editing system based on UE4, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the video editing system based on the UE4 includes an audio and video file collection and import module, a video picture rendering module, a clipping module, and a system parameter setting module.

< UE4 video editing System >

In the UE4 video editing system, the UE4 is called universal Engine 4, is an open-source game development platform, and is used for realizing the requirements of different technicians on game development, model construction and system building by carrying out secondary development on each internal functional module. The method is used for building a visual system and a graphical user interface based on video editing by establishing a custom blueprint or modifying the functions of internal modules by using a c + + programming language. Meanwhile, the node editing system of the UE4 can be used for realizing the connection between functions and the quick calling of the required functions, and a convenient and realizable platform is provided for the construction of a user-defined system.

< Audio/video file collection and import Module >

The video and audio file acquisition and import module can upload local files and network cloud videos simultaneously and record the videos and the web pages in real time, so that the video editing requirements of different video editing personnel on different occasions are met, and the practicability and timeliness of a video editing system are achieved.

< video Picture rendering Module >

The video picture rendering module of the present invention includes a depth of field adjusting module, a light source distributing module, and a filter rendering module, as shown in fig. 2.

In an implementation manner, the filter rendering module can adjust parameters of a pixel size unit and a global shader unit of a video and a picture to better modify the saturation and color collocation of the picture and realize real-time smooth preview on a time line through the rendered video picture, meanwhile, the speed of everywhere slicing can be improved due to the completeness of rendering, the obtained picture is more real and fine, and animation, the manufacturing of large scenes such as games and the display of real scenes such as buildings and home design can be met.

< clipping Module >

The editing module comprises a time axis alignment module, an audio track grabbing module and an audio and video clip editing module in an audio and video file.

The audio track grabbing module comprises A/B track display, inter-track synthetic track adding, local track deleting, track emptying and track renaming.

The clipping module of the present invention includes normal, add, subtract, positive stack bottom, divide merge modes, as shown in fig. 3.

In an embodiment, the time axis alignment module compares the clip positions of the audio or the picture to achieve the purpose of excluding no audio clip, achieve the automatic audio verification function, and ensure the integrity of the clip. The clipping module generates png format data by the rdb picture data through the channel data to be inserted into the bmp video format, so that music is formed, the multiple ends of the picture video are spliced, or multiple sections of videos which are mutually related are spliced and clipped. And the picture of each frame can be captured in real time through the editing module so as to realize various video effects of special effect editing, character adding, filter rendering and video transition.

< Module for setting System parameters >

The system parameter setting module comprises video quality parameter setting and video window parameter setting.

In summary, the present invention provides a video editing system based on UE4, which can acquire and import a local file or a network cloud file through an audio-video file acquisition and import module, and transmit the file to a video picture rendering module or a clipping module according to a user requirement. And carrying out depth of field adjustment setting on the object transmitted to the video picture rendering module so as to distinguish the total transparent and non-transparent objects of the picture, transmitting the object information after the depth of field adjustment setting to the light source distribution module, and setting a reasonable illumination effect according to different objects so that the rendered video is more real and the picture is more exquisite. The modification and the promotion of the image saturation are realized by adjusting a filter rendering module in the video image rendering. Through the video and audio clip editing module, the functions of adding synthetic tracks among tracks, adding, deleting, clearing tracks and the like can be realized, the quality of captured audio is high, and meanwhile, the video editing function is integrated into a whole, so that the audio and video synthesis is more convenient.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may be made by those skilled in the art, and all such equivalents and modifications should fall within the scope of the appended claims.

Claims

1. A video editing system based on UE4 is characterized by comprising an audio-video file acquisition and import module, a video picture rendering module, a clipping module and a system parameter setting module.

2. The UE 4-based video editing system of claim 1, wherein the video file capture and import module obtains local or network cloud resources and sends the obtained video files to the video picture rendering module or the video clip editing module for further editing, and the video files comprise one of audio, video, pictures and pictures.

3. The UE 4-based video editing system according to claim 1, wherein the video picture rendering module comprises a depth adjustment module, a light source assignment module, and a filter rendering module.

4. The UE 4-based video editing system according to claim 3, wherein the depth of field adjustment module transmits information to the light source assignment module by distinguishing between transparent and opaque objects in the scene, and sets up reasonable lighting effects for different objects.

5. The UE 4-based video editing system of claim 3, wherein the light source distribution module comprises directional light sources, point light sources, spot light sources, rectangular light sources, and sky lighting.

6. The UE 4-based video editing system according to claim 3, wherein the filter rendering module includes a set pixel size unit, a global shader unit, and wherein the picture saturation is modified by setting pixel size unit and global shader unit parameters.

7. The UE 4-based video editing system according to claim 1, wherein the clipping module comprises an in-video file timeline alignment module, an audio track capture module, and an in-video clip clipping module.

8. The UE 4-based video editing system according to claim 7, wherein the audio track capture module comprises a/B track display, add inter-track composite tracks, add tracks, delete native tracks, clear tracks, track rename.

9. The UE 4-based video editing system of claim 7, wherein the video clip editing module comprises normal, add, subtract, positive bottom-on-bottom, divide-and-merge modes.

10. The UE 4-based video editing system according to claim 1, wherein the system parameter setting module comprises video quality parameter setting and video window parameter setting.