What is the bitrate of a typical video?
The video bitrate must be higher than 256. What is the video bitrate? The copy is mainly determined according to the video resolution.
usually:
1080*720 split resolution is about 5000K;
720*576 resolution is about 3500K;
640*480 resolution is about 1500K.
Extended information:
1. Calculation formula
The basic algorithm is: bit rate (kbps) = file size (KB) * 8 / time (seconds), for example, D5 disk, 4.3G capacity, considering the different audio formats, it is calculated as 600M, (by so the remaining capacity is 4.3*1024-600=3803.2M), so the video file should not be more than 3.7G.
For example, the video file capacity is 3.446G and the video length is 100 minutes (6000 seconds), the calculation result: the bit rate is approximately equal to 4818 kbps (3.446*1024*1024*8/ 6000=4817.857).
2. Various code rate principles
1. Bitrate is proportional to quality, but file size is also proportional to bitrate.
2. If the bitrate exceeds a certain value, it has little effect on the image quality.
3. DVD capacity is limited, whether it is standard 4.3G, Super Recorded or D9, there are limits. Information in the computer is represented by binary 0 and 1, and each 0 or 1 is called a bit, which is represented by a lowercase b, that is, bit (bit).
