Simple answer to your question: the opposite of compression!!
Rather more helpful, I hope, answer: when video is "recorded" (i.e. written to some form of digital storage, be it hard drive, SD card, or whatever) it must almost always be compressed in order to create files that are not "huge" (in bytes) and that can be successfully written to the particular storage medium. When such files are subsequently opened for playing, e.g. in MEP or any video file player, the compression process must be reversed. IOW, the player can, in effect, handle ONLY the uncompressed data. In practice, the player software will handle the decompression (the reversion to the uncompressed "original") and then "play" the file. Using MEP or any similar video editor, each file can then be "edited" and processed.
One of the consequences of the compression/decompression cycle is that a pretty fast computer is required to handle the data throughput and playback/editing of such files.
Simple answer to your question: the opposite of compression!!
Rather more helpful, I hope, answer: when video is "recorded" (i.e. written to some form of digital storage, be it hard drive, SD card, or whatever) it must almost always be compressed in order to create files that are not "huge" (in bytes) and that can be successfully written to the particular storage medium. When such files are subsequently opened for playing, e.g. in MEP or any video file player, the compression process must be reversed. IOW, the player can, in effect, handle ONLY the uncompressed data. In practice, the player software will handle the decompression (the reversion to the uncompressed "original") and then "play" the file. Using MEP or any similar video editor, each file can then be "edited" and processed.
One of the consequences of the compression/decompression cycle is that a pretty fast computer is required to handle the data throughput and playback/editing of such files.
HTH
Jeff
Hi,
If the files have to be decompressed so that they can playback, then what is the point of the compression in the first place if a player is going to decompress it anyway?
Please re-read my previous post, especially this part:
when video is "recorded" (i.e. written to some form of digital storage, be it hard drive, SD card, or whatever) it must almost always be compressed in order to create files that are not "huge" (in bytes) and that can be successfully written to the particular storage medium
I have deliberately bolded two important phrases: Uncompressed video can create file sizes that are "huge" and so would very quickly fill up any even half-decent amount of disc space; and every storage format has a maximum data-write speed. The data throughput of uncompressed video at anything like "reasonable" quality would potentially cause dropped frames or other signal corruption because it cannot be written to disc fast enough.
Please re-read my previous post, especially this part:
when video is "recorded" (i.e. written to some form of digital storage, be it hard drive, SD card, or whatever) it must almost always be compressed in order to create files that are not "huge" (in bytes) and that can be successfully written to the particular storage medium
I have deliberately bolded two important phrases: Uncompressed video can create file sizes that are "huge" and so would very quickly fill up any even half-decent amount of disc space; and every storage format has a maximum data-write speed. The data throughput of uncompressed video at anything like "reasonable" quality would potentially cause dropped frames or other signal corruption because it cannot be written to disc fast enough.
HTH
Jeff
Hi again, thanks for your help so far.
I understand about uncompressed files in that they are huge, etc. But what I can't understand yet is why a player would have to decompress a file to be able to play it back if it has to be compressed in the first place in order for the file to be more manageable/playable. I think I am missing something...
But what I can't understand yet is why a player would have to decompress a file to be able to play it back if it has to be compressed in the first place in order for the file to be more manageable/playable
I think you may be misunderstanding the core concept here: compression makes the file "easier" to store (for the reasons given in my previous post); decompression makes the file payable.