MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Compression reduces the size of a file, often without appreciable loss of information. It can be either lossless or lossy. A smaller-sized compressed file can be restored to its larger form–in its entirety or with some data loss, depending on the compression type–by decompression.
Detailed explanation-2: -ZIP is an archive file format that supports lossless data compression. A ZIP file may contain one or more files or directories that may have been compressed. The ZIP file format permits a number of compression algorithms, though DEFLATE is the most common.
Detailed explanation-3: -I compressed my video file, but after upload/conversion the file is actually a little bigger. Why? The quality and file size of a video are directly related to bitrate. To make the file size smaller, you reduce the bitrate of the video (compression), but you also begin to lose quality.