The Bitrate setting is also known as Data Rate and Average Rate.
In almost all codecs and programs it is used to set the target (not actual) size of the file in kilobits/second (kbps). Usually, the actual size is larger than the bitrate setting (how much larger varies based on the program and codec)
Determining the final actual bitrate.
To determine the approximate actual bitrate of a compressed file, take the file size in Kilobytes, multiply by 8 (there are 8 bits in a byte), then divide by the # of seconds of video in the file. This will give you a total bitrate for audio and video combined.
This is only an approximate bitrate because there is some overhead, but it should be very close.
No comments:
Post a Comment