Video capture means to capture the video and audio information with the specialized video capture card, and then do digital processing and software compression processing to the captured information. At this time users can save, play back, transport or do other operation to these information.
Through the definition of video capture, we know that we can capture online movies and streaming video. And the quality of the captured contents depends on the video capture card and the video capture method (the process of the digital processing and software compression processing).
1. Video capture card
Video capture card is also called video card. It inputs the mixed analog camera, video, LD pro laser vision disc, TV output video signal or other output video data and video audio data into the computer, and then converts the mixed data into computer discernible digital data, which are editable and processible video data files and stores them in the computer.
According to the video signal source the video capture card can be divided into digital capture card (with digital interface) and simulation capture card. According to its usage, the video capture card can be divided into broadcast video capture card, professional video capture card and common video capture card. Therefore, different video capture cards will make different video capture quality, and you may choose one as your actual need.
2. Video capture method
Video capture method means the way users do digital processing and software compression processing of the captured video data and audio data. That means the way you take to capture the online videos, online capture websites or commercial software? Generally speaking, the contents captured by software have better quality than that by online capture websites. Software is more professional, so they have better captured quality. Some of the online video capture software provides the functions to do some simple operation on the captured videos, which will give you the ideal video effect.
