![]() And the process of video playback or sharing involves encoding and decoding. Most videos we use are compressed in some way to shrink redundant info. We can tell from the formula that, for a raw video of a certain length, its size was determined by the frame rate, the resolution, and the bit depth. Video file size = Time (sec) x Frames per Second (fps) x Pixels per Frame (resolution) x Bit Depth Factors That Determine Video File Size and Quality In the first place, to get a better understanding of how to reduce file size without losing quality, we should figure out what factors are affectting the size and quality of a video. What we can do is to minimize the quality loss while decreasing the file size. So when we want to release the storage or share a video via Instagram, Facebook, or Twitter, we have to compress it into a smaller size.īut here comes another headache - How to compress video files without losing quality? Actually, compression is a process to reduce data stored in the file, thus, unavoidably, causes quality loss. A 10-min 4K video shot by iPhone 11 takes up 3.9GB. But we all know it is at the cost of sacrificing much storage space. With the fast growth of 8K and UHD 4K DSLRs, drones, action cameras, and smartphones, it is not rocket science for average people to capture high-quality videos.
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