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Why are some videos larger than others?
The size of a video file is based on the number of bits used to represent a frame of video. If you add up the amount of bits used to represent a second of video, that’s called the “bitrate”. The difference between the video on your computer and the one you took on the phone is the difference in bitrate.
What determines video file size?
Video file size depends on many variables: HD (High Definition) vs. SD (Standard Definition), frame rate, color depth, even the amount of movement in the video. There are three measurements that count for a lot in determining the final file size.
Why do some 1080p videos look better than others?
Every row of pixels – all 1,080 of them – is being loaded up onto your TV screen in every frame. In turn, that means there’s no chance for the frames to be out of sync with each other, like they are with 1080i, and the video looks sharper.
Does bigger video size mean better quality?
Video resolution is measured as width by height using pixels as units. Pixels are tiny squares that make up a digital image. For example, a 1920 x 1080 video means the width has 1,920 pixels and the height 1,080 pixels. To put it simply, more pixels make up better image resolution.
What affects the size of a video?
Video file size depends on the bitrate but not the video resolution. Bitrate is the most important factor in determining a video file size. Technically-speaking, you can have a 4K video with a lower bitrate than a 720p video.
Why is one video bigger than the other?
Both videos are the same material, and of course one has higher bit rate than the other one, that is why the final size is bigger. That is my question, why one video gets higher bit rate (higher video size) than the other one.
Why are two videos of the same quality different?
Both of those will require more bitrate to deliver the same quality. And if the lower birate camera is delivering high quality, using even more bitrate won’t improve quality significantly, just increase the file size. Different quantizer matrices will require more or less bitrate. Different motion search parameters. Etc. Is that a peeper cam?
Why is the same file a different size in different places?
This is something that’s confused computer users for many years: the exact same file can show as taking up a different amount of space, depending on where you look and the characteristics of different disk drives. Copy that file online and things get even more confusing. I don’t think I’ve ever seen this be something to worry about.
Are there any videos with the same resolution?
Im taking the videos with 2 video cameras, both of them from the same manufacturer, same camera sensor, same resolution (352×288), same fps (10fps), and same codec (Xvid). And of course I record the same material, in the same place at the same time. I got one camera 1 year after the other one, and I think it has a new/different firmware.