Traditional Culture Encyclopedia - Photography and portraiture - Why do videos taken by digital cameras play on computers?
Why do videos taken by digital cameras play on computers?
2. There are two main factors that determine video clarity, one is resolution and the other is code rate. At present, most of the videos shot are HD 1920* 1080 pixels, so it is not a question of resolution. The code rate of high-definition material shot by camera is generally between 20m and 30m, and that shot by camera is generally between 70m and 80m. The video rate we watch online is lower, rarely higher than 5M, so the video taken by the camera will be stuck.
3. How to solve this problem? 1, the format factory can be used to convert and reduce the bit rate. 2. Improve the computer configuration.
4. The reason why the code rate of the camera is much higher than that of the camera:
A, the design is different, the camera is mainly designed for photography and the camera is mainly designed for video recording;
B, file size, photography is a single picture (RAW is only a few tens of MB), and video is a combination of multiple pictures (at 30-60 frames per second, the file will be too big if the pixel is too high);
C, as a static picture, it needs high picture quality (4000X3000 equals12 million or even higher), but relatively speaking, the dynamic picture does not need to be too high (the highest HD 4K is only 3840X2 160 equals 8 million).
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