KR20020064125A - Apparatus and method for editing moving pictures using simple hardware capture and software encoder - Google Patents

Abstract

PURPOSE: A device and a method for editing animated video using simple hardware capture and software encoder are provided to easily edit animated video by converting analog video signal into digital signal using a simple capture way and generating compressed animated video signal using a software encoding way. CONSTITUTION: A device for editing animated video using simple hardware capture and software encoder includes a capturing part(22), a software encoding part(24), and an animated video editing part(26). The capturing part captures analog video signal input from the outside in a real time, and converts the analog video signal into digital video signal. The software encoding part compresses and codes the digital video signal and generates animated video file capable of being edited. The animated video editing part receives and edits the generated animated video file.

Description

Apparatus and method for editing moving pictures using simple hardware capture and software encoder}

The present invention relates to a video editing apparatus and a method thereof and a computer-readable recording medium recording a program for realizing the method. More particularly, the video editing apparatus can be easily edited using a simple capture method and a software encoding method. And a computer-readable recording medium having recorded thereon a program for realizing the method.

Such video editing apparatus and method are provided for video editing such as making a video compact disc (CD) for home video, producing multimedia teaching materials and school event records at school, recording videos for business and research presentations, and research and development progress. It can be used in various places where needed.

In addition, the present invention may be used for editing various moving images such as Moving Pictures Expert Group-1 (MPEG1), MPEG2, MPEG4, and the like. In the following detailed description of the present invention, the MPEG1 image will be described as an example. However, it is noted that the present invention is not limited to MPEG1 video.

1 is an exemplary configuration diagram of a conventional video editing apparatus.

As shown in FIG. 1, a conventional video editing apparatus includes an MPEG1 hardware encoder (MPEG1 H / W Encoder) for receiving an analog video signal 11 from an external source and generating an MPEG1 file. 12) an MPEG1 editor 14 for receiving an MPEG1 file 13 generated by the MPEG1 hardware encoder 12 and editing the MPEG1 file.

In the prior art for editing analog video as described above, the MPEG1 hardware encoder 12 was used to generate an MPEG1 file before the MPEG1 editor 14.

Therefore, the conventional video editing apparatus is complicated in hardware because it uses the MPEG1 hardware encoder, and the MPEG1 hardware encoder acts as a factor of the price increase for video editing, and is installed and maintained in a personal computer. And there was a problem causing inconvenience in use in the upgrade.

The present invention has been proposed to solve the above problems, a video editing apparatus that digitizes an analog video signal using a simple capture method and generates a compressed video signal using a software encoding method to easily edit a video. It is an object of the present invention to provide a computer-readable recording medium that records the method and a program for realizing the method.

1 is an exemplary configuration diagram of a conventional video editing apparatus.

2 is a block diagram of a video editing apparatus using simple hardware capture and a software encoder according to the present invention;

Figure 3 is a specific embodiment configuration of a video editing apparatus using a simple hardware capture and software encoder according to the present invention.

4 is a flowchart illustrating a video editing method using a capture method and a software encoder according to the present invention.

* Explanation of symbols for the main parts of the drawings

22,31: USB Capture 24,32: MPEG1 Software Encoder

26,34: MPEG1 Editor 33: Video File Database

The apparatus of the present invention for achieving the above object, in a video editing apparatus using a simple hardware capture and software encoder, capture for converting an analog video signal input from the outside in real time to convert to a digital video signal Way; Software encoding means for compressing and encoding the digital video signal converted and transmitted by the capture means to generate a video file in an editable state; And video editing means for receiving a video file generated by the software encoding means and editing the video file.

Further, another apparatus of the present invention is a video editing apparatus using simple hardware capture and software encoder, comprising: video file storage means for storing a composite data source (video file) such as a background screen; Capture means for capturing an analog video signal input from the outside in real time and converting the analog video signal into a digital video signal; Software encoding means for compressing and encoding the digital video signal converted and transmitted by the capture means to generate a video file in an editable state; And video editing means for editing a composite data source (video file) stored in the video file storage means and a video file generated by the software encoding means.

Meanwhile, the method of the present invention is a video editing method applied to a video editing apparatus using a capture and a software encoder, the method comprising: capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; step; A second step of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And a third step of generating a new video file by editing the generated video file.

In addition, another method of the present invention is a video editing method applied to a video editing apparatus using a capture and software encoder, the first step of storing a composite data source (video file) such as a background screen to build a video file database ; A second step of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A third step of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And a fourth step of generating a new video file by editing the composite data source (video file) stored in the video file database and the generated video file.

On the other hand, the present invention, in order to edit a video using a capture and a software encoder, when the analog video signal is input from the outside to the video editing device having a processor to capture in real time to convert the analog video signal into a digital video signal First function; A second function of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And a computer readable recording medium having recorded thereon a program for realizing a third function of editing the generated moving picture file to generate a new moving picture file.

In addition, the present invention provides a first method of constructing a video file database by storing a composite data source (video file) such as a background screen in a video editing apparatus having a processor, for editing a video using capture and a software encoder. function; A second function of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A third function of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And a computer-readable recording medium having recorded thereon a program for realizing a synthetic data source (video file) stored in the video file database and a fourth function of editing the generated video file to generate a new video file. do.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of an embodiment of a video editing apparatus using simple hardware capture and a software encoder according to the present invention.

As shown in FIG. 2, the video editing apparatus using a simple hardware capture and software encoder according to the present invention captures an analog video signal 21 input from an external source in real time to capture a digital signal processor (DSP). USB capture 22 for converting the digital video signal 23 to the MPEG1 software encoder 24 through a USB (Universal Serial Port) interface, and the digital video signal converted and transmitted from the USB capture 22. MPEG1 software encoder (MPEG1 S / W Encoder) 24 for compressing and encoding (23) to generate an MPEG1 file 25 in an immediately editable state, MPEG1 generated by the MPEG1 software encoder 24 An MPEG1 editor (MPEG1Editor) 26 for receiving the file 25 and editing the MPEG1 file is included.

As described above, the present invention converts an analog video signal into a digital video signal using a USB capture method, and then compresses and encodes the MPEG1 file using an MPEG1 software encoding method to generate an MPEG1 file, thereby easily editing a video. The disadvantages of the conventional method used can be solved, and there is an advantage that the simple editing can be edited without deterioration of image quality.

In addition, the present invention can be efficiently configured without the cost by minimizing the hardware by using a small external USB capture, and the configuration and installation of the system is very simple because of the external type. In addition, the present invention has the advantage of very simple installation, maintenance and upgrade of the system because it uses a software encoder.

3 is a block diagram illustrating an embodiment of a video editing apparatus using simple hardware capture and a software encoder according to the present invention.

As shown in FIG. 3, a video editing apparatus using simple hardware capture and a software encoder according to the present invention includes an image file database 33 that stores a composite data source (video file) such as a background screen, and is input from an external source. In the USB capture 31, the USB capture 31 for capturing the analog video signal in real time and converting it into a digital video signal using a digital signal processor (DSP) for transmission to the MPEG1 software encoder 32 via a USB interface. MPEG-1 software encoder 32 for compressing and encoding the converted and transmitted digital video signal to generate an MPEG1 file in an immediately editable state, a synthetic data source (video file) stored in the video file database 33, and the MPEG1. An MPEG1 editor 34 for editing MPEG1 files generated by the software encoder 32 It should.

4 is a flowchart illustrating a video editing method using a capture method and a software encoder according to the present invention.

First, a composite data source (video file) such as a background screen is stored to construct an image file database (not shown). This process is not an essential component of the present invention but additionally a functional part that can be further performed.

Thereafter, when the analog video signal is input from the outside, it is determined whether to capture in real time (41). If not, the process proceeds to the process of determining whether to edit the MPEG1 file (44). The capture is converted into a digital video signal using a digital signal processor (DSP) (42). Thereafter, the converted digital video signal is compressed and encoded using an MPEG1 software encoder to generate an MPEG1 file in an editable state (43).

Then, it is determined whether to edit the MPEG1 file (44), or when it is finished, if it is desired to edit, edit the synthesized data source (video file) and the generated MPEG1 file stored in the video file database (45) to make a new MPEG1 file. Create a file (46). In this case, when the above-described video file database construction process is not performed, the generated MPEG1 file is simply edited because the composite data source stored in the video file database cannot be used in the editing process 45.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention converts an analog video signal to a digital video signal using a USB capture method, and then compresses and encodes the MPEG1 file using an MPEG1 software encoding method to generate an MPEG1 file, thereby making it easy to edit a video. The disadvantage of the conventional method using the hardware encoder can be solved, and there is an advantage that the simple editing can be edited without deterioration of image quality.

In addition, the present invention can minimize the hardware by using a small external USB capture to minimize the price, and since the external configuration is very simple to configure and install the system.

In addition, the present invention has the advantage of very simple installation, maintenance and upgrade of the system because it uses a software encoder.

Claims (10)

In the video editing device using simple hardware capture and software encoder, Capture means for capturing an analog video signal input from the outside in real time and converting the analog video signal into a digital video signal; Software encoding means for compressing and encoding the digital video signal converted and transmitted by the capture means to generate a video file in an editable state; And Video editing means for editing a video file by receiving the video file generated by the software encoding means Video editing device using a simple hardware capture and software encoder, including. In the video editing device using simple hardware capture and software encoder, Video file storage means for storing a composite data source (video file) such as a background screen; Capture means for capturing an analog video signal input from the outside in real time and converting the analog video signal into a digital video signal; Software encoding means for compressing and encoding the digital video signal converted and transmitted by the capture means to generate a video file in an editable state; And Video editing means for editing a composite data source (video file) stored in the video file storage means and a video file generated by the software encoding means Video editing device using a simple hardware capture and software encoder, including. The method according to claim 1 or 2, The capture means, USB capture for capturing analog video signals from outside in real time, converting them into digital video signals using a digital signal processor (DSP), and delivering them to the software encoding means via a USB (Universal Serial Port) interface Video editing device using a simple hardware capture and software encoder, characterized in that. The method of claim 3, wherein The video file, An apparatus for editing video using a simple hardware capture and software encoder, comprising moving pictures expert group-1 (MPEG1) or MPEG2 or MPEG4 files. In the video editing method applied to the video editing device using the capture and software encoder, A first step of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A second step of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And A third step of generating a new video file by editing the generated video file Video editing method using a capture and software encoder comprising a. In the video editing method applied to the video editing device using the capture and software encoder, A first step of constructing an image file database by storing a synthetic material source (movie file) such as a background screen; A second step of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A third step of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And A fourth step of generating a new video file by editing a composite data source (video file) stored in the video file database and the generated video file; Video editing method using a capture and software encoder comprising a. The method according to claim 5 or 6, The capture and conversion process, It captures an analog video signal input from outside in real time, converts it into a digital video signal using a digital signal processor (DSP), and delivers it to the software encoding means through a USB (Universal Serial Port) interface. How to capture and edit video using a software encoder. The method of claim 7, wherein The video file, A moving picture editing method using a capture and software encoder, comprising moving pictures expert group-1 (MPEG1) or MPEG2 or MPEG4 files. In a video editing device having a processor, for editing the video using capture and a software encoder, A first function of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A second function of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And A third function of generating a new video file by editing the generated video file A computer-readable recording medium having recorded thereon a program for realizing this. In a video editing device having a processor, for editing the video using capture and a software encoder, A first function of storing a composite data source (video file) such as a background screen to build a video file database; A second function of capturing in real time when an analog video signal is input from the outside and converting the analog video signal into a digital video signal; A third function of compressing and encoding the converted digital video signal using a software encoder to generate a video file in an editable state; And A fourth function of generating a new video file by editing a composite data source (video file) stored in the video file database and the generated video file A computer-readable recording medium having recorded thereon a program for realizing this.